2024-03-29T06:06:46Z
http://docs.lib.purdue.edu/do/oai/
oai:docs.lib.purdue.edu:techmasters-1002
2007-12-03T23:28:58Z
publication:techmasters
publication:tech
publication:techetds
Impeding And Facilitating Factors In The Implementation Of Lean Enterprise Methodology
Leonard, Brian S
The field of lean enterprise has continued to grow since being introduced by the Toyota Corporation after World War II. In academia lean strategies are being introduced in order to prepare students for this new era in operating procedures. Currently, the majority of research in business and academia is focused on processes and methodology, but leadership strategies are yet to be fully examined.
According to Hamilton (2006) there are insufficient resources and research that contribute to understanding successful implementation strategies. Hamilton (2006) expresses concern of the lack of focus on leadership strategies and employee development in lean enterprise.
This qualitative study explores factors that impede and facilitate implementation of lean processes in business and industry. Business leaders whose organizations are implementing lean processes were interviewed. Furthermore, interviews were conducted with consultants in the field of lean enterprise. Other data was collected from document review, site visits, and observations, where feasible. Grounded theory and open coding techniques were used to sort the data according to major categories and themes. Factors were then subjected to specific statistical tests to determine the degree of relationship between factors and successful lean enterprise implementation. Interpretation and discussion will generate a new theoretical model for lean enterprise methodology. Recommendations for future research conclude the study.
2007-12-03T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/9
https://docs.lib.purdue.edu/context/techmasters/article/1002/type/native/viewcontent/Brian_leonard_Thesis_Final_Draft.pdf
Purdue Polytechnic Masters Theses
Purdue University
Lean
Implementation
Impeding
Facilitating
oai:docs.lib.purdue.edu:techmasters-1003
2007-12-06T03:49:45Z
publication:techmasters
publication:tech
publication:techetds
Volumetric Visualization Of NEXRAD Level II Doppler Weather Data From Multiple Sites
Ru, Yi
Weather visualization is critical for operational forecasters and weather researchers to analyze, monitor, and predict severe weather events such as storms, tornadoes, and hurricanes. Usually measured weather datasets such as NEXRAD Level II radar data contain some errors and have temporal aliasing issues, so that the raw data cannot represent the true meteorological patterns. Existing weather visualization packages usually ignore these problems, thus they fail to unveil some detailed information and cannot meet the needs of professional meteorologists. Most displays generated by those packages are limited to 2D images, 3D point clouds, or iso-surfaces. Those displays are not able to accurately represent the details of the data. The limitation of visualizing data from a single radar site at one single time step in most packages blocks desirable information in the datasets.
We developed an efficient and accurate visualization tool capable of displaying the long-track 3D NEXRAD Level II volumetric weather data from multiple sites. The data were captured and integrated from three sites (KEAX, KILX and KSLX), and rendered by using the hardware-accelerated volume-rendering technique. Customized transfer functions are also provided for users to map data values to optical properties such as color and opacity to create different views. We also implemented a compression algorithm to compress 3D textures in order to largely reduce the consumption of hard disk space and to enhance the rendering speed without degrading image quality. An example study shows the tracking of a 24-hour supercell storm observed on March 12, 2006, in the Midwest of the United States. Images and animations from our implementation coupled with results from a set of experiments demonstrate that our methods and approaches are fast and robust, making them suitable for processing and rendering huge amounts of Doppler Level II weather data from multiple stations.
2007-12-05T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/10
https://docs.lib.purdue.edu/context/techmasters/article/1003/viewcontent/Thesis_yru_final.pdf
Purdue Polytechnic Masters Theses
Purdue University
Computer Science (0984)
oai:docs.lib.purdue.edu:techmasters-1004
2010-03-05T17:19:42Z
publication:techmasters
publication:tech
publication:techetds
Using Piezoelectric Generation To Harvest Energy From Turbulent Air Flow
Nelson, Joshua M
The tasks of generating, harvesting, and converting energy have long been ones crucial to the human race. As such, environmental concerns, population increase, personal energy consumption, and diminishing resources have led to a focus on new methods and possibilities. A set of factors has influenced this research, among which was a desire to steward resources better, the inefficiencies of many current generation technologies, and the rising cost of fuel.
Although piezoelectric generation (PEG) has been researched and used to power small devices, this generation technique is undeveloped, especially on a large scale. This research focuses on the conversion of air turbulence to electrical energy via a piezoelectric generator.
After a literature review was conducted, calculations were performed to determine energy potential. Bench tests were performed to determine the characteristics of the material. Road tests were then carried out utilizing a thin-film piezoelectric material. Data such as air velocity and voltage were collected. It was found that the piezoelectric effect can be used to harvest energy from turbulent air flow. However, with the method and material used, this is not an efficient means of energy harvesting; power generated was less than 1 microwatt.
2010-03-05T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/2
https://docs.lib.purdue.edu/context/techmasters/article/1004/viewcontent/thesis_8.pdf
Purdue Polytechnic Masters Theses
Purdue University
energy
harvesting
turbulence
power
piezoelectric
generation
renewable
oai:docs.lib.purdue.edu:techmasters-1005
2010-06-17T17:54:40Z
publication:techmasters
publication:tech
publication:techetds
Implementation and Performance Evaluation of a Regenerative Braking System Coupled to Ultracapacitors for a Brushless DC Hub Motor Driven Electric Tricycle
Kuruppu, Sandun
Research related to electrical vehicles is gaining importance due to the, energy crisis. An electric vehicle itself is far ahead of an internal combustion, engine based vehicle due to its efficiency. Using regenerative braking when, braking, improves the efficiency of an electric vehicle as it recovers energy that, could go to waste if mechanical brakes were used. A novel regenerative braking, system for neighborhood electric vehicles was designed, prototyped and tested., The proposed system utilizes an ultracapacitor bank to capture energy where as, the conventional systems regenerate to the batteries. The switching frequency of, the current plays a key role in controlling the negative torque applied by the, motor while capturing energy. The user has direct control over the amount of, current regenerated and hence the amount of negative torque applied for, braking. The research has shown that the proposed regenerative braking system, is significantly better in recovering energy and slowing the vehicle compared to a, commercially available regenerative braking system.
2010-04-02T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/3
https://docs.lib.purdue.edu/context/techmasters/article/1005/viewcontent/MSThesis_Sandun_Kuruppu_Purdue_University_ECET_Final_2.pdf
Purdue Polytechnic Masters Theses
Purdue University
regenerative braking
ultracapacitor(s)
electric vehicles
oai:docs.lib.purdue.edu:techmasters-1006
2010-04-21T20:51:09Z
publication:techmasters
publication:tech
publication:techetds
Design Considerations to Reduce Conducted and Radiated EMI
Schneider, Matthew J
This work evaluates the effects of conducted and radiated EMI due to improperly designed circuits or printed circuit board (PCB) layouts. Common circuits used in a wide range of electronic devices are evaluated using both good and poor design techniques. Additional evaluations are performed to measure the effects of EMI on cabling used for digital communication or RF purposes. Finally, a consumer product is evaluated which must pass regulatory agency requirements in order to be sold in the consumer market. Potential solutions to common EMI problems are then implemented and discussed. This work will look at individual circuits and evaluate design flaws that contribute the largest amount of radiated emissions. Avoiding poor circuit designs and PCB layout mistakes reduces the amount of radiated emissions from any product. This work discusses the theory of electromagnetics and how it pertains to EMI events, then addresses the practical problems associated with EMI using common circuits to illustrate EMI effects. It is important to understand why EMI related effects are becoming more critical, and to show why EMI problems should be corrected within the design phase.
2010-04-21T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/4
https://docs.lib.purdue.edu/context/techmasters/article/1006/viewcontent/Final_Thesis_21Apr10.pdf
Purdue Polytechnic Masters Theses
Purdue University
EMI
EMC
Radiated Emissions
Conducted Emissions
Susceptibility
oai:docs.lib.purdue.edu:techmasters-1007
2010-04-24T02:55:21Z
publication:techmasters
publication:tech
publication:techetds
A Data Acquisition System For The NASA Specialized Center Of Research And Training Cuvette
Riggs, Benjamin A
This study explored the use of newer techniques to create a custom data acquisition system for horticultural purposes. Common horticultural lab equipment was used to measure environmental variables within a plant growth chamber, known as a cuvette. The cuvette was used to test various combinations of growing conditions and plant crops to gather data on the most feasible scheme for astronauts to remain in space in perpetuity. The lab equipment was networked to a common personal computer running custom software. The software developed is a multithreaded program making use of the Microsoft .Net framework. It periodically gathers and charts data from the horticulture lab equipment, saves the data to a Microsoft Excel spreadsheet, and disseminates the data via the Internet.
2010-04-23T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/5
https://docs.lib.purdue.edu/context/techmasters/article/1007/viewcontent/RiggsThesisETD.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1007/filename/0/type/additional/viewcontent/ASHSPermission.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1007/filename/1/type/additional/viewcontent/PhotosyntheticaPermission.pdf
Purdue Polytechnic Masters Theses
Purdue University
Data Acquisition System
Cuvette
.NET Framework
Multithreading
Microsoft Excel
oai:docs.lib.purdue.edu:techmasters-1008
2010-04-27T00:33:23Z
publication:techmasters
publication:tech
publication:techetds
Logging Cross-Site Scripting Attacks in Firefox for Forensic Investigation
Vaidhyanathan, Mithun
Detecting web application attacks is a task performed by many systems. An example of such a system is the open source tool NoScript, which will be discussed at various points in this work. Among these attacks, cross site scripting is a focus of this study, mainly due to the levels of concern related to it. The primary goal of this research is to analyze how efficiently a cross-site scripting attack once detected can be logged. Logging the attack has benefits from a Cyberforensics point of view. This work analyzes related efforts and the benefits of implementing such functionality. It was found that for the test system analyzed, there was an additional overhead. This overhead, though, was seen to be within acceptable limits defined in Usability Engineering literatures.
2010-04-26T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/6
https://docs.lib.purdue.edu/context/techmasters/article/1008/viewcontent/Thesis_Mithun_ETD.pdf
Purdue Polytechnic Masters Theses
Purdue University
Cyberforensics
Frequency analysis
Open source tools
Semantic analysis
Usability engineering
Web application security
oai:docs.lib.purdue.edu:techmasters-1009
2010-04-27T16:35:54Z
publication:techmasters
publication:tech
publication:techetds
Industry Perspectives On Reusable Launch Vehicle Technicians
Vlasman, Brent A.
Companies in the commercial space industry are developing a new generation of reusable launch vehicles (RLV). The Federal Aviation Administration’s Office of Commercial Space Transportation (FAA/AST) is working on creating a new generation of technicians, the RLV Aerospace Maintenance Technician (RAMT), who is capable of maintaining these new vehicles. However, the FAA/AST does not yet know the knowledge required of this technician in order to maintain this new vehicle type. This exploratory, qualitative study examined the subject area knowledge required of reusable launch vehicle technicians in the United States’ sub-orbital commercial space industry. The study sought to answer the question, “What are important subject areas for the training of RLV technicians?” This was accomplished by interviewing subject matter experts from the companies developing sub-orbital RLVs over the telephone. The interviews were recorded, transcribed, and then analyzed for common themes using Strauss and Corbin’s Grounded Theory, qualitative content analysis, and cross case analysis. This study found that important subject areas for the training of RLV technicians include: Rocket Propulsion, Aviation Maintenance, Electronics/Electrical Systems, Mechanical Systems, Engineering, Project Management, and Aerodynamics. Recommendations are made to develop an RLV curriculum based on these subject areas as a supplemental area of study for aviation maintenance training programs.
2010-04-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/7
https://docs.lib.purdue.edu/context/techmasters/article/1009/viewcontent/vlasmanultrafinalthesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Reusable Launch Vehicle
RLV
commercial space
technician
maintenance
space tourism
operations
suborbital
mechanic
aerospace
oai:docs.lib.purdue.edu:techmasters-1010
2010-04-27T21:37:54Z
publication:techmasters
publication:tech
publication:techetds
The Development of a Standard Digital Forensics Master's Curriculum
Strzempka, Kathleen
This research focuses on the development of a standard digital forensics master’s curriculum. A current state analysis has been done of various master’s programs across the United States. Each of the courses were analyzed and compared against digital forensic domains from previous studies, including the Digital Forensic Certification Board’s (2009) KSA domains and Beebe and Clark’s (2006) knowledge domains. The courses were charted under their appropriate categories in an effort to identify the topics covered within each curriculum. Both a qualitative and frequency analysis were then completed to review the domains covered within each program. The results showed a wide variety of topics from school to school. Eight of the twelve master’s programs were more generalized and touched briefly on a majority of the domains, while the remaining programs emphasized more specific areas such as computer science, law, and criminal justice. Using the data gathered from the analyses in combination with the KSA and knowledge domains, a standard digital forensics curriculum has been identified as a starting point for future research. This model curriculum includes required courses, potential electives, and descriptions of each. Future research should further test whether this standard curriculum is generalizable to all programs within this field.
2010-04-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/8
https://docs.lib.purdue.edu/context/techmasters/article/1010/viewcontent/Thesis___Final.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1010/filename/0/type/additional/viewcontent/Graduate_School_ETD_Form_9.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1010/filename/1/type/additional/viewcontent/Form_20.pdf
Purdue Polytechnic Masters Theses
Purdue University
Digital Forensics
Standards
Curriculum Development
oai:docs.lib.purdue.edu:techmasters-1011
2010-04-28T01:04:50Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
A Comparison of Peer Evaluation: The Evaluation App versus DeviantArt
Mccreight, Brian M
Using a causal comparative analysis approach, this study examines the use of a specifically designed peer evaluation Rich Internet Application (RIA) – The “Evaluation App” -- versus its Web application counterparts. Traditional peer evaluation Web applications are often overloaded with redundant and unnecessary features for reviewing and critiquing projects related to interactive media and applied computer graphics. With a decrease in interactivity, feature overload, and less targeted functionality, these kinds of Web applications tend to be less engaging for peer evaluation operations. This study attempts to examine the efficiency and practicality of RIAs used for the purpose of digital media critiques and evaluation.
Building on previous research in the areas of educational and interactive media, this thesis details an experimental study that compares a RIA specifically designed for use in educational peer evaluation with current digital technologies traditionally used to support the critiquing process.
2010-04-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/11
https://docs.lib.purdue.edu/context/techmasters/article/1011/viewcontent/McCreight_finalthesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
peer evaluation
AIR
Adobe
RIA
rich internet applications
desktop application
HCI
human factors
usability
interface
cognitive load
oai:docs.lib.purdue.edu:techmasters-1012
2010-04-29T01:53:19Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
The Small and Medium Enterprise's Perspective of Product Data Management
Waldenmeyer, Karen
This study was conducted as a means to discover common traits associated with small and medium manufacturers, especially ones who have adopted product data management systems as a method to control engineering design and manufacturing data. After qualitative interviews with leading experts in the PDM field, a survey was developed and sent to small and medium manufacturers in the United States. The survey concludes a number of interesting statistics about the state of PDM usage within this segment of the industry, including general uses for engineering design systems, level of data exchange with customers and suppliers, and satisfaction levels with information querying, concurrent engineering contributions, and imposed restrictions. The study concludes that there are a few major factors that determine a company’s success with using design systems, including frequency of data exchange, data reuse, digital data formats used, and employee counts and locations.
2010-04-28T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/12
https://docs.lib.purdue.edu/context/techmasters/article/1012/viewcontent/Thesis_postdefense2_bb_etd1.pdf
Purdue Polytechnic Masters Theses
Purdue University
manufacturing
product data management
small medium business
indiana
product lifecycle management
PDM
PLM
engineering design
oai:docs.lib.purdue.edu:techmasters-1013
2010-04-29T16:11:07Z
publication:techmasters
publication:tech
publication:techetds
Professional Networking Sites: An Effective Means For Identifying Individual Knowledge And Expertise?
Young, Laura B
There is a significant amount of literature pertaining to the management of knowledge. In the past twenty years, knowledge management has become commonplace among those organizations striving to gain competitive advantage through the retention and dissemination of information. This field has grown exponentially, with innumerable applications and facets growing from this previously singular field. One such application is the location of expertise. Identifying those individuals with specific competencies and job-related information is valuable in many significant ways.
The purpose of this thesis was to justify the use of professional networking sites as a viable methodology for identifying individual knowledge and expertise. This was accomplished through a case study of a small telecommunications company located on the west coast. An electronic survey measuring respondent perceptions was distributed via email with 111 of 1,150 employees responding to the questionnaire. Survey respondents indicated that professional networking sites provided an opportunity to maximize certain aspects of organizational performance. Nonetheless, organizationally supported methods were rated more favorably than professional networking websites in the location of job-related information. Results from this study suggest that while professional networking websites provide a viable methodology for identifying expertise, certain respondent attitudes impede applicability in an organizational setting.
2010-04-29T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/13
https://docs.lib.purdue.edu/context/techmasters/article/1013/viewcontent/LBY.pdf
Purdue Polytechnic Masters Theses
Purdue University
Expertise Identification
Knowledge Management
Social Networking Media
Professional Networking Sites
oai:docs.lib.purdue.edu:techmasters-1015
2010-04-30T13:34:37Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
An Examination of Social Presence in Video Conferencing vs. an Augmented Reality Conferencing Application
Faas, Travis B
This study focused on the implications of augmented reality videochat when used in an educational context. Traditional web conferencing systems are impaired by limitations that inhibit their use for education, primarily due to their difficulty in creating social presence. An augmented video chat system was created that allowed two users to interact with a three dimensional models displayed on top of paper markers called fiducials. This chat system was tested to ascertain if it was able to create more social presence than a traditional web conferencing system. The two systems were found to create similar amounts of social presence during use. Implications for educational use and future web conferencing systems are discussed.
2010-04-30T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/15
https://docs.lib.purdue.edu/context/techmasters/article/1015/viewcontent/thesis_finalEdits.pdf
Purdue Polytechnic Masters Theses
Purdue University
oai:docs.lib.purdue.edu:techmasters-1014
2010-04-30T13:20:52Z
publication:techmasters
publication:tech
publication:techetds
A Study of Barriers to Acceptance of Distance Learning Courses in a Corporate Setting
Rhodes, Holly A
Rhodes, Holly A., Purdue University, May 2010. A Study of Integration and acceptance of Distance Learning Courses in a Corporate Setting. Major Professor: William Krug. The purpose of this study was to further understand how the integration of distance learning courses in a corporate setting may encounter barriers or resistance to acceptance. These barriers expereinced by corporate based course developer, facilitator and adult learner may be similar to those experienced by the educational counterparts. This was achieved in this study through a survey of several audiences related to distance learning in a corporate environment. The survey comprised of five questionnaires which measured the experiences of each of these groups. Findings determined the learner group, although cautious about distance learning, were interested in continuing this learning practice and felt it was an effective method for learning. Issues related to time management were also explored in the learner group. The facilitator group had a high level of anxiety prior to the courses and a very low level of it afterward. This suggested a need for increased practice or support for the facilitator group was needed. Course developers indicated they were highly confident in their ability to develop an effective distance learning course. However, some lack in self-identified proficiency surrounding distance learning technologies was shown.
2010-04-30T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/14
https://docs.lib.purdue.edu/context/techmasters/article/1014/viewcontent/Rhodes_Thesis_Rvsd.pdf
Purdue Polytechnic Masters Theses
Purdue University
Distance Learning
Corporate Learning
Adult Learning
oai:docs.lib.purdue.edu:techmasters-1016
2010-04-30T17:20:07Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Effects of Lighting Phenomena on Perceived Realism of Rendered Water-rich Virtual Environments
Bojrab, Micah L
This study investigates the effects of various common lighting phenomena on human perception found in water-rich virtual environments. The investigation uses a traditional Psychophysical Analysis (PPA) to examine viewer perception of these lighting phenomena as they relate to rendering cost and reveals common trends in perceptual value among the phenomena. The work includes the use of a web-based testing system, proposed for the first time in familiar literature. The system includes five scenes with eight common lighting variables. Every scene depicts a different water scenario, but each shows every lighting phenomenon. The animated videos are rated in order of realism while one lighting variable is changed. The results of this PPA are then compared against the individual cost of each lighting phenomenon and an overall value is derived.
The study shows there is a unique order of importance for lighting phenomena in water-rich virtual environments. The results of the PPA show trends in perceptual quality and that not all lighting phenomena are equal. The testing will also show the cost of each phenomenon is not equal. The study concludes with general guidelines while rendering water-rich scenes.
In future work this “order” can be used to reduce expensive rendering costs associated with these complex scenes with less expense to visual quality. A collective goal to this work and others is real-time interactive water with plausible or ultimately photorealistic results.
2010-04-30T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/16
https://docs.lib.purdue.edu/context/techmasters/article/1016/viewcontent/MBojrab_MasterThesis_v3.pdf
Purdue Polytechnic Masters Theses
Purdue University
Psychophysical
lighting
rendering
perception
HVS
phenomena
water
oai:docs.lib.purdue.edu:techmasters-1017
2010-05-03T16:43:26Z
publication:techmasters
publication:tech
publication:techetds
A Comparison Of The Effect Of Variations To U.S. Airport Terminal Signs On The Successful Wayfinding Of Chinese And American Cultural Groups
Leib, Steven
Processing passengers quickly and efficiently is one of the top goals for airport administrators, and major international gateways have the added challenge of processing passengers representing a variety of cultures and nations. People having diverse cultural backgrounds may interpret signage layouts differently with respect to symbols and text. Consequently, dedicated research into signage perception may provide airport administrators with a more informed sense of how to convey appropriate movement and directional information within their terminals. There are many ways to answer the broad question of what signage encourages passengers to move most efficiently through an airport terminal. This study focused on the different ways in which Chinese and American airline passengers navigated through a terminal using either signs showing text only, symbols only, or both text and symbols. Quantitative in nature, the study used a unique computer simulation to generate paths having signage with English text, common symbols, or a combination of both. Participants clicked on arrows to follow the path to the specified goal for each different variation. Total completion time measurements and completion accuracy (in terms of correct versus incorrect clicks) were gathered. Analysis of the results suggested that there was a statistically significant difference related to cultural differences on a passenger's ability to wayfind based on the type of signage used. Additionally, within cultural groups there was a statistically significant difference as to which arrangements encouraged better wayfinding and those which did not. Lastly, the results suggested a difference in which sign type produced the best wayfinding performance and which sign type people actually preferred.
2010-05-03T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/17
https://docs.lib.purdue.edu/context/techmasters/article/1017/viewcontent/full_final_thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
airport
sign
symbol
wayfinding
navigation
aviation
cognition
perception
Chinese
American
oai:docs.lib.purdue.edu:techmasters-1018
2010-05-04T21:31:48Z
publication:techmasters
publication:tech
publication:techetds
Providing Availability on the Poly^2 Framework
Chakraborty, Ankur
Availability is not often a primary concern for frameworks meant to provide security. Poly^2 is one such framework. It provides us with a hardened foundation based on secure design principles to run mission-critical services. While, the primary focus of Poly^2 till now seems to have been fault isolation, we will now attempt to add recovery as well. However, current techniques may compromise the security principles on which the framework was originally built. We propose a hybrid system based on two popular techniques to rectify the same.
2010-04-29T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/18
https://docs.lib.purdue.edu/context/techmasters/article/1018/viewcontent/thesis_Ankur_Chakraborty.pdf
Purdue Polytechnic Masters Theses
Purdue University
information security
high availability
secure network frameworks
oai:docs.lib.purdue.edu:techmasters-1019
2010-05-07T21:08:54Z
publication:techmasters
publication:tech
publication:techetds
Securing Wireless Communication Against Dictionary Attacks Without Using PKI
Geethakumar, Sarath
Security of 802.11x wireless encryption standards are increasingly coming under scrutiny as compared to other security protocols and standards. The attacks on 802.11x wireless security protocols are exacerbated by the ease with which attackers can monitor radio signals and passively capture packets as compared to LAN or other physical networks. The intent of this research is to analyze the feasibility of designing a wireless authentication protocol, which is secure against dictionary attacks, for home networks and small wireless networks without using PKI or transport layer security. The research focuses mainly on pre-shared key authentication mechanisms in order to reduce the overhead of directory servers or radius based authentication mechanisms.
2010-05-30T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/19
https://docs.lib.purdue.edu/context/techmasters/article/1019/viewcontent/Sarath_Thesis_Final_rev1.pdf
Purdue Polytechnic Masters Theses
Purdue University
Wireless Security
Information Security
oai:docs.lib.purdue.edu:techmasters-1020
2010-05-08T01:07:30Z
publication:techmasters
publication:tech
publication:techetds
Cross-Site Request Forgery Attacks Against Linksys Wireless Routers
Poyar, Ryan L
Wireless routers are common in the typical home and are becoming more so every year. While wireless networks can be convenient and provide many benefits they also have the potential to be insecure and vulnerable. Statistics show that a large percentage of wireless routers use weak or no encryption and many wireless routers still use their default password. This research analyzed the security of wireless routers, specifically the security of a standard Linksys wireless router. The research focused on CSRF attacks and the possibility for an attacker to modify a wireless router through such attacks. The results of the research were significant. Proof of concept code is provided that demonstrates a variety of different types of attacks that enable an attacker to modify a wireless router in order to gain complete and persistent control of the device.
2010-05-07T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/20
https://docs.lib.purdue.edu/context/techmasters/article/1020/viewcontent/Poyar_CSRF_Wireless_Routers.pdf
Purdue Polytechnic Masters Theses
Purdue University
Web Application Security
CSRF
Cross-Site Request Forgery
Linksys
Wireless Routers
oai:docs.lib.purdue.edu:techmasters-1021
2010-06-03T22:32:10Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Evaluating the Efficacy of Clustered Visualization in Exploratory Search Tasks
Kothari, Sarika S
Information visualization has the potential to improve the quality of Web search results representation providing more context and novel ways to see relationships among items in a result set. The key objective of this research was to evaluate the potential of graphical visualization for representation of Web search results especially for exploratory search tasks.
This is achieved by comparing the commonly used technique of ranked list representation of search results with the novel technique of representing these results using a cluster-based visualization technique. An experiment was designed in which participants performed Web searches for a set of predefined exploratory search scenarios. The number of links visited to complete each search task and the amount of time taken to complete the task was recorded. Participant feedback was collected to compare these two techniques. This information was then analyzed to evaluate efficiency of completing the search task, effectiveness at reaching the search goal, and user satisfaction with the two techniques. Important observations were made based on participant feedback on cluster-based visualization technique.
This research study demonstrates the potential of cluster-based visualization techniques for Web search results representation as a complementary tool to currently available techniques to improve user experience for exploratory search tasks.
2010-06-03T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/21
https://docs.lib.purdue.edu/context/techmasters/article/1021/viewcontent/Sarika_Thesis_Final_Copy.pdf
Purdue Polytechnic Masters Theses
Purdue University
clustered visualization
exploratory search tasks
oai:docs.lib.purdue.edu:techmasters-1022
2010-06-04T02:38:47Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Data Structures And Techniques For Visualization Of Large Volumetric Carbon Dioxide Datasets In A Real Time Experience
Lambert, Jason B
This thesis covers new research into real-time rendering of volumetric carbon dioxide data collected in the Vulcan project. The Vulcan project, a multi-disciplinary initiative to quantify carbon dioxide mass flux from residential, commercial and industrial sources headed by Gurney et al ( Gurney, K. R., Mendoza, D. L., Zhou, Y., Fischer, M. L., Miller, C. C., Geethakumar, S., and de La Rue du Can, S. , 2009). The Vulcan datasets are a significant aid for policy makers, scientists and the general public alike as the collection was completed at a much finer space and time resolution than ever before.
A previous visualization attempt, completed in 2009 (Andrysco, Gurney, Benes, & Corbin, 2009) was able to visualize the data in an offline environment, noting constraints of data size and disk speed access as the most significant drawbacks for real-time visualization.
This thesis presents research towards a new real-time visualization suite in the areas of compression, data representation and simplification. The research hypothesizes that the use of these techniques will enable sufficient speed of rendering and loading to enable real-time data exploration.
The results show that a combination of techniques used in compression and the use of optimized indexed geometric structures allows the dataset to be explored and rendered in real time
2010-04-21T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/22
https://docs.lib.purdue.edu/context/techmasters/article/1022/viewcontent/Lambert_thesis_final_x.pdf
Purdue Polytechnic Masters Theses
Purdue University
Real
Time
Volume
Rendering
Point
Triangles
Carbon
Dioxide
oai:docs.lib.purdue.edu:techmasters-1023
2010-06-07T12:24:08Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Large-Scale 3D Visualization of Doppler Reflectivity Data
Kristof, Peter
The super resolution NEXRAD Level II Doppler radar data provides critical information on reflectivity, wind velocity and spectrum width for the entire United States. The goal of this work is to develop a framework that enables multiple users to interactively access, analyze and visualize the Doppler reflectivity data in 3D to study near real-time weather events. To provide interactive high-quality volumetric weather visualization, we combined two approaches dealing with large-scale storage of global weather data and out-of-core volume rendering using CUDA ray casting. The results of our work show that the reflectivity data from multiple radars can be preprocessed into data format that is efficient for large-scale volumetric visualization of reflectivity data in near-real time and requires minimal run-time processing.
2010-04-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/23
https://docs.lib.purdue.edu/context/techmasters/article/1023/viewcontent/Kristof10_thesisETD.pdf
Purdue Polytechnic Masters Theses
Purdue University
Large-scale volumetric visualization
Doppler radar
3D reflectivity
oai:docs.lib.purdue.edu:techmasters-1024
2010-06-07T15:17:45Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Full CUDA Implementation Of GPGPU Recursive Ray-Tracing
Britton, Andrew D
Pioneered by the works of Whitted and Appel, ray tracing has become a standard format for image rendering. Ray tracing is a very accurate mathematical calculation of light and color, but is a very slow process. The question becomes how can researchers combine the speed of GPU calculations with the rendering
quality of ray-tracing? The focus of this research is to solve this question. Our research will test the effectiveness of decreasing render times by mplementing a full GPGPU ray trace renderer with recursive ray casting.
The purpose of this study is to test the speed of brute force ray tracing calculation on the GPU versus the optimized ray tracing capabilities of a production quality renderer. Specifically, how much faster, if at all, can the GPU speed up rendering.
For this study the author created two renderers, a CPU renderer and a GPU renderer, written in C++ and CUDA respectively. The author written renderers are implemented without spatial partitioning or ray-object prediction algorithms. The rendering speed of the CPU, GPU and Mental Ray renderers were tested in two scene groups with the first group containing one scene and the second group containing three scenes. The first test scene contains a 5 sided box of 10 triangles and 48 spheres. The second group of scenes contains the same box of 10 triangles with an expanding set of objects. The first, second and third scenes contain 900, 10000 and 30000 objects, respectively. All renderers generated 25 frames per scene. The average time for renders was compared for each test. Each renderer was tested on multiple hardware devices.
The GPU renderer outperformed both the author written CPU renderer and the Mental Ray renderer in both tests. In the first test scene, the average render times for the GPU, CPU and Mental Ray renderers were 988.94, 75246.3, and 6007.067 milliseconds, respectively. For the second group of test scenes of 900, 10000 and 30000 objects the author written GPU renderer outperformed Mental Ray in speed of rendering. Due to the spatial partitioning algorithm in Mental Ray, the GPU renderer out performed by smaller amounts as the number of rendered objects increased. It is believed that at a large enough number of rendered objects the parallel nature of the GPU will fail in comparison to the spatial partitioning algorithms in Mental Ray.
2010-04-30T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/24
https://docs.lib.purdue.edu/context/techmasters/article/1024/viewcontent/ABritton_Thesis_Gold.pdf
Purdue Polytechnic Masters Theses
Purdue University
CUDA
RAY TRACING
GPGPU
oai:docs.lib.purdue.edu:techmasters-1025
2010-06-17T20:47:36Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
Evaluating User Modality Preference Effect On Cognitive Load In A Multimedia
Scott, Justin V
Meaningful learning is defined as a deep understanding of the material, which includes attending to important aspects of the presented material, mentally organizing it into a coherent cognitive structure, and integrating it with relevant existing knowledge (Mayer & Moreno, 2003). Mayer and Moreno (2003) defines multimedia learning as learning from words and pictures, and multimedia instruction as presenting words and pictures that are intended to foster learning. The emergence of numerous learning style models over the past 25 years has brought increasing attention to the idea that students learn in diverse ways and that one approach to teaching does not work for every student or even most students (Hawk & Shah, 2007). Various studies attempting to understand the relationship between personality and academic achievement have concluded that this relationship is moderated by both learning and teaching style (Furnham, 1992). The goal of this study is to analyze several methods of using words and pictures to effectively present information for meaningful learning.
2010-06-17T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/25
https://docs.lib.purdue.edu/context/techmasters/article/1025/viewcontent/FinalThesisJVScott.pdf
Purdue Polytechnic Masters Theses
Purdue University
multimedia
transfer and retention
memory
modality
cognitive load
oai:docs.lib.purdue.edu:techmasters-1026
2010-07-12T13:43:06Z
publication:techmasters
publication:tech
publication:techetds
Efficient Storage of Semantic Web Data
Wagle, Mihir S
With the adoption of RDF (Resource Description Framework), OWL (Web Ontology Language) and SPARQL (SPARQL Protocol And RDF Query Language) as standards for the semantic web, it has become essential to look into datawarehousing systems that are dedicated to working with the RDF data (World Wide Web Consortium). Traditional datawarehouses have focused on relational databases and have been optimized to work with the relational data. However, working with RDF data involves exploiting the triple nature of the data. As the size of the database increases, the time required to evaluate the queries on the database increases as well (Rohloff & Dean, et al., 2007). However, not only do the users need access to information as soon as possible, but also the information that is presented to them needs to be relevant to their search (Spink & Wolfram, et al., 2000). Through this project, the author looked into the different storage techniques for RDF data and attempted to strike a balance between the access time for information retrieval and parameters such as the storage space needed for the data and the complexity of the queries. BigOWLIM and Pellet which are built around open source frameworks such as Jena and Sesame respectively were used for this study. The work done in this project is of significance mainly to small and medium enterprises since small datasets having about a million triples have been considered.
2010-07-12T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/26
https://docs.lib.purdue.edu/context/techmasters/article/1026/viewcontent/Mihir_Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
oai:docs.lib.purdue.edu:techmasters-1027
2010-07-14T15:27:55Z
publication:techmasters
publication:tech
publication:techetds
Live Migration Of Parallel Applications
Romero, Raul Fabian
Romero, Raul F. M.S., Purdue University, August, 2010. Live Migration of Parallel Applications. Major Professor: Thomas J. Hacker.
It has been observed on engineering and scientific data centers that the absence of a clear separation between software and hardware can severely affect parallel applications. Applications that run across several nodes tend to be greatly affected because a single computational failure present in one of the nodes often leads the entire application to produce incorrect results or to even die. This low observed reliability requires a combination of a proactive and reactive solution in order to preserve the state of parallel jobs running on degraded nodes; therefore it is possible to avoid runtime errors in parallel applications.
This thesis addressed the critical problem of low reliability in parallel jobs by implementing a fault tolerance approach based on OpenVZ virtualization. By using virtual machines on which parallel applications were running, this study showed that it was feasible to make parallel jobs independent of any particular hardware/software implementation; therefore when a degraded node is detected, the virtual machine(s) running on this degraded node(s) may be migrated with its parallel jobs to a healthier node. This study examined the correctness and performance of implementing live migration on hosts loaded with parallel jobs, and determined that it is possible to efficiently save the state of parallel applications after live migration of virtual machines to a more reliable node.
2010-07-14T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/27
https://docs.lib.purdue.edu/context/techmasters/article/1027/viewcontent/Thesis_RomeroFabianCIT.pdf
Purdue Polytechnic Masters Theses
Purdue University
Virtualization
Parallel Applications
MPI
OpenVZ
MPICH2
LAM/MPI
OMEN
HPL
oai:docs.lib.purdue.edu:techmasters-1028
2010-07-21T03:54:50Z
publication:techmasters
publication:tech
publication:techetds
Increasing Effectiveness Of The Zachman Framework Using The Balanced Scorecard
Gokhale, Anagha
The purpose of this study is to explore the impact of integrating the use of Zachman Framework of Enterprise Architecture and the Balanced Scorecard (BSC) Framework for an effective business-IT alignment. The study tries to identify certain gaps in the Zachman Framework focusing on the motivational aspects of the framework, which have been discussed in the literature review. The aim is to achieve the integration by mitigating these motivational aspect’s weaknesses in the Zachman Framework using the deliverables obtained from the BSC. Thus the author proposes to achieve business-IT alignment through this integration. No research studies in the past have tried to explore the motivational aspect of the Zachman Framework, although there have been similar studies conducted on other aspects of the framework.
2010-08-20T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/28
https://docs.lib.purdue.edu/context/techmasters/article/1028/viewcontent/Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Enterprise Architecture
Enterprise Architecture Frameworks
Zachman Framework
Balanced Scorecard
Effectiveness
Systems Architecture
oai:docs.lib.purdue.edu:techmasters-1029
2010-07-22T06:58:52Z
publication:techmasters
publication:tech
publication:techetds
Evaluation of Early Supplier Involvement in Product Development
Chen, Yunker
In the Asia-Pacific Region, industries are tend to concentrate geographically, link together vertically or horizontally and create mutual reinforcing process. By taking advantage from such industry cluster (Porter, 1990; Porter, 1998; Tsai & Li, 2009), companies have collaborated with their suppliers more in the product lifecycle to gain benefits of quick response to market, lower product cost and better quality. Hence, improving suppliers’ co-design ability appears to be an important index for suppliers’ overall performance and project achievement. However, most companies neither know if their suppliers are capable of supporting their new product development nor have clear statistical reports about suppliers’ co-design ability in industries for reference, which obstruct these companies from seeking effective ways to enhance suppliers’ performance. To address these issues, this study examined suppliers’ contribution and Product Lifecycle Management (PLM) solution satisfaction level toward suppliers’ Collaborative Product Design (CPD) performance in the Taiwanese electronics industry. The result of this work provided statistical reports and advice to industries and PLM software vendors pursuing buyer-supplier relationship enhancement.
2010-07-21T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/29
https://docs.lib.purdue.edu/context/techmasters/article/1029/viewcontent/v54_FinalThesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
PLM
ESI
Product Lifecycle Management
Early Supplier Involvement
NPD
New Product Development
oai:docs.lib.purdue.edu:techmasters-1030
2010-08-06T16:37:55Z
publication:cgt
publication:techmasters
publication:tech
publication:cgttheses
publication:techetds
A Study of the Effects of Immersion on Short-term Spatial Memory
Johnson, Eric A
Johnson, Eric Arthur. M.S., Purdue University, August, 2010. A Study of the Effects of Immersion on Short-term Spatial Memory. Major Professor: Nicoletta Adamo-Villani. The goal of the study was to determine whether the level of immersion of a virtual environment has a significant effect on the user’s short term spatial memory. Two previous virtual environment development projects are reviewed: the Muscatatuck Virtual Tour and the 21st Century World Future City (Adamo- Villani, et al. 2009, 2010)). These projects show the viability of producing a virtual environment and a partially immersive, low-cost virtual reality system ,i.e. a Fish- Tank system (The system was used for the purpose of the study). Previous research is analyzed to demonstrate the viability of using virtual reality as a testing tool for measuring the effects of immersion on cognitive processes. Results of the study show that there is a significant difference in spatial memory when the level of immersion changes.
2010-08-06T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/30
https://docs.lib.purdue.edu/context/techmasters/article/1030/viewcontent/thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Fish-tank
virtual reality
3d environments
real-time
3d for web
spatial memory
immersion
oai:docs.lib.purdue.edu:techmasters-1031
2010-09-04T22:20:34Z
publication:techmasters
publication:tech
publication:techetds
Can a Scalable System be Built to Capture Web Page Thumbnails?
Hirzalla, Feras
Hirzalla, Feras M. M.S., Purdue University, December 2010, Can a Scalable
System be Built to Capture Web Page Thumbnails? Major Professor: John
Springer.
Screenshots of web pages are a novel user interface improvement that
can be used in various systems. Several software packages can be used to
generate a visual representation of a web page, but none of these packages are
designed to capture web pages in a scalable way.
The goal of this research is to build and test a web page thumbnailer that
can simultaneously capture screenshots of multiple web pages using multiple
threads, thus maximizing the throughput of web pages that can be processed per
unit of time. From the data collected during tests, thread count usage
recommendations can be made.
To test the thumbnailer, the author used a sample set of 30,000 web
pages. Web page sizes were collected from the sample set, and 10,000 web
pages were assigned to small, medium, and large categories. The thumbnailer
was timed for different thread counts for each of the size categories. The data
showed that as more capture threads were added, the time it took to generate
visual representations of web pages decreased.
2010-09-04T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/31
https://docs.lib.purdue.edu/context/techmasters/article/1031/viewcontent/HirzallaThesisETD.pdf
Purdue Polytechnic Masters Theses
Purdue University
scalable
webpage thumbnails
screenshots websites
usability
oai:docs.lib.purdue.edu:techmasters-1032
2010-12-07T22:01:15Z
publication:techmasters
publication:tech
publication:techetds
The Selection of Commercial Astronauts for Suborbital Spaceflight
Kozak, Brian J
With the launch of Dennis Tito aboard a Russian Soyuz rocket in 2001 and SpaceShipOne winning the Ansari X-Prize in 2004, the commercial space tourism industry is on the verge of lifting off. In 2007 Burt Rutan spoke about the future of space tourism, “We think that 100,000 people will fly by 2020” (Rutan, 2007). With such a high frequency of suborbital spaceflights, there is a need for qualified crews to operate the spacecraft. The purpose of this qualitative, exploratory study was to investigate the possible selection criteria for suborbital commercial astronauts within the space tourism industry. Data was collected in the form of telephone and email interviews with 4 of the 5 U.S.-based suborbital space tourism companies participating. Purdue University's extensive astronaut alumni network was used to augment data gathered with five astronauts who have flown in space. In addition, Brian Binnie, the pilot who flew SpaceShipOne on its award winning Ansari X-Prize flight, participated. Grounded Theory and Truth and Reality Testing were used as the theoretical framework for data analysis. The data gathered suggests that the commercial astronaut should have at least a Bachelor's degree in engineering, have a test pilot background with thousands of hours of pilot-in-command time in high performance jet aircraft, be confident yet humble in personality, and have a fundamental understanding of their spacecraft, including spacecraft trajectories, and emergency procedures.
2010-12-07T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/32
https://docs.lib.purdue.edu/context/techmasters/article/1032/viewcontent/v63.pdf
Purdue Polytechnic Masters Theses
Purdue University
suborbital spaceflight
commercial astronauts
space tourism
astronaut
astronaut selection
oai:docs.lib.purdue.edu:techmasters-1033
2010-12-10T15:16:54Z
publication:techmasters
publication:tech
publication:techetds
A Field Test of Mobile Phone Shielding Devices
Katz, Eric
Mobile phones are increasingly a source of evidence in criminal investigations. The evidence on a phone is volatile and can easily be overwritten or deleted. There are many tools that claim to radio isolate a phone in order to preserve evidence. Unfortunately the wireless preservation devices do not always successfully prevent network communication as promised. The purpose of this study was to identify situations where the devices used to protect evidence on mobile phones can fail. There has been little published research on how well these devices work in the field despite the escalating importance of mobile phone forensics. These shielding devices were tested using mobile phones from three of the largest services providers in the U.S. Calls were made to contact the isolated phones using voice, SMS, and MMS at varying distances from the provider’s towers. In the majority of the test cases the phones were not isolated from their networks despite being enclosed in a shielding device. It was found that SMS calls penetrated the shields the most often. Voice calls were the next most likely to penetrate the shields and MMS were the least.
2010-12-10T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/33
https://docs.lib.purdue.edu/context/techmasters/article/1033/viewcontent/A_FIELD_TEST_OF_MOBILE_PHONE_SHIELDING_DEVICES_edit.pdf
Purdue Polytechnic Masters Theses
Purdue University
cyber
forensics
mobile
cell
phone
shielding
rf
oai:docs.lib.purdue.edu:techmasters-1035
2011-04-20T15:42:59Z
publication:techmasters
publication:tech
publication:techetds
A Cost-Benefit Analysis of a Campus Computing Grid
Smith, Preston M
Any major research institution has a substantial number of computer systems on its campus, often in the scale of tens of thousands. Given that a large amount of scientific computing is appropriate for execution in an opportunistic environment, a campus grid is an inexpensive way to build a powerful computational resource. What is missing, though, is a model for making an informed decision on the cost-effectives of a campus grid. In this thesis, the author describes a model for measuring the costs and benefits of building a campus computing resource based on the institution’s existing investment in computing hardware.
For this study, the author calculates the usable capacity of a campus environ- ment, and based on TCO data for Purdue University’s campus grid, presents a model for calculating the base cost for a core-hour of computation in the campus grid.
2011-04-20T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/34
https://docs.lib.purdue.edu/context/techmasters/article/1035/viewcontent/thesis_final.pdf
Purdue Polytechnic Masters Theses
Purdue University
grid computing
condor
IT costs
cloud computing
Computer and Systems Architecture
Finance and Financial Management
Other Computer Sciences
Technology and Innovation
oai:docs.lib.purdue.edu:techmasters-1038
2011-04-23T02:41:11Z
publication:techmasters
publication:tech
publication:techetds
A Study of Social Media Integration in Public Emergency Alert Systems
Barnett, Alexander G
To remain effective, modern emergency alert systems must continue to investigate new methods and technologies for contacting the public. Today’s emergency alert systems, which rely primarily on broadcast media, have yet to fully embrace the potential of one category of Internet technologies: Social media. Social media potentially represents a large, untapped audience for emergency alert personnel to not only contact, but also utilize when seeking information regarding an incident. The following paper investigates these technologies and their relevance to the emergency alert field.
2011-04-22T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/35
https://docs.lib.purdue.edu/context/techmasters/article/1038/viewcontent/thesisfinal.pdf
Purdue Polytechnic Masters Theses
Purdue University
emergency alert system
social media
oai:docs.lib.purdue.edu:techmasters-1039
2011-04-28T00:38:18Z
publication:techmasters
publication:tech
publication:techetds
How Much do U.S. University Students Know, and Want to Know, About Sustainability and Green Building? The Findings of a Survey, and Possible Implications for General Elective Curriculum.
Farner, Jeremy R
Using the survey approach, this investigation examined the attitudes and interest of college students at two universities in different geographic locations within the United States. Approximately 24,000 students from all disciplines and majors at Weber State University (WSU) in Utah, and 4,000 at Purdue University in Indiana, were invited to participate in a study to determine current knowledge, familiarity, and interest in topics within the sustainability and Green Building educational arena. The goal of this study was to determine what students already know, would like to know, and how much interest there would be in developing a general elective course offered to students from all majors on sustainability in the built environment. Currently, neither university offers such curriculum generally: it is limited to students in the architecture, construction management, or engineering programs to receive general elective credit towards graduation. The theory is that students from all disciplines are interested and would take a general elective course based on Green Building in the built environment concepts. The title of the course could potentially be; “How to Green Your Home”. Based upon the survey results and analysis, several outcomes suggest that students across all majors are indeed interested in greening their built environment. The data highlights what is currently understood, as well as areas in which education may be lacking. This contribution includes an outline of teaching implications as well as recommendations as to what, how, and where Green Building should be taught at the college level. The findings of this study suggest that a general elective course, multi-disciplinary in its approach, is both needed and wanted by university students.
2011-04-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/37
https://docs.lib.purdue.edu/context/techmasters/article/1039/viewcontent/Jeremy_Farner_Thesis_4_27_11.pdf
Purdue Polytechnic Masters Theses
Purdue University
Green Building
Sustainability
General Education
Curriculum
Adult and Continuing Education Administration
Adult and Continuing Education and Teaching
Advertising and Promotion Management
Architectural Engineering
Construction Engineering
Construction Engineering and Management
Curriculum and Instruction
Educational Assessment, Evaluation, and Research
Environmental Design
Environmental Engineering
Environmental Indicators and Impact Assessment
Environmental Monitoring
Family and Consumer Sciences
Higher Education Administration
Higher Education and Teaching
Interior Architecture
Marketing
Natural Resource Economics
Natural Resources and Conservation
Natural Resources Management and Policy
Sustainability
Water Resource Management
oai:docs.lib.purdue.edu:techmasters-1040
2011-05-11T05:33:11Z
publication:techmasters
publication:tech
publication:techetds
How Much Do U.S. University Students Know, And Want To Know, About Sustainability And Green Building? The Findings Of A Survey, And Possible Implications For General Elective Curricula.
Farner, Jeremy R
Using the survey approach, this investigation examined the attitudes and interest of college students at two universities in different geographic locations within the United States. Approximately 24,000 students from all disciplines and majors at Weber State University (WSU) in Utah, and 4,000 at Purdue University in Indiana, were invited to participate in a study to determine current knowledge, familiarity, and interest in topics within the sustainability and Green Building educational arena. The goal of this study was to determine what students already know, would like to know, and how much interest there would be in developing a general elective course offered to students from all majors on sustainability in the built environment. Currently, neither university offers such curriculum generally: it is limited to students in the architecture, construction management, or engineering programs to receive general elective credit towards graduation. The theory is that students from all disciplines are interested and would take a general elective course based on Green Building in the built environment concepts. The title of the course could potentially be; “How to Green Your Home”. Based upon the survey results and analysis, several outcomes suggest that students across all majors are indeed interested in greening their built environment. The data highlights what is currently understood, as well as areas in which education may be lacking. This contribution includes an outline of teaching implications as well as recommendations as to what, how, and where Green Building should be taught at the college level. The findings of this study suggest that a general elective course, multi-disciplinary in its approach, is both needed and wanted by university students.
2011-05-10T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/36
https://docs.lib.purdue.edu/context/techmasters/article/1040/viewcontent/ETD_Thesis_Final_JRF_5_1_2011.pdf
Purdue Polytechnic Masters Theses
Purdue University
Sustainability
Green Building
General Education
Adult and Continuing Education Administration
Adult and Continuing Education and Teaching
Architectural Engineering
Community College Education Administration
Computer-Aided Engineering and Design
Construction Engineering
Construction Engineering and Management
Curriculum and Instruction
Educational Assessment, Evaluation, and Research
Elementary and Middle and Secondary Education Administration
Environmental Design
Environmental Engineering
Higher Education Administration
Higher Education and Teaching
Natural Resource Economics
Natural Resources and Conservation
Natural Resources Management and Policy
Other Environmental Sciences
Science and Mathematics Education
Sustainability
Technology and Innovation
oai:docs.lib.purdue.edu:techmasters-1041
2011-06-09T20:18:08Z
publication:techmasters
publication:tech
publication:techetds
CONTROL SYSTEM FOR MASS SPECTROMETER
Xu, Jian
Mass spectrometry (MS) is a very popular analytical methodology that measures the mass of ions using a mass spectrometer. It is widely used for determining masses of chemicals, the elemental composition of a sample and molecule structure. The process of mass spectrometry normally consists of ionizing chemical compounds to ions and measuring their ratios of mass to charge for analysis.
MS instruments consist of three modules: Ionization, Analysis and detection. A LabVIEW system was developed to control the three modules of a mass spectrometer, giving the required signals in a right sequence. Experiments can be carried out by using the system very convenient since the software settings are very flexible.
Broadband radio frequency (RF) circuit was designed. Transformers were tested for the purpose of it, and a good one was chosen for further research. Frequency scan function will be enhanced which will significantly low down the necessary RF voltage within a mass spectrometer.
2011-05-15T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/38
https://docs.lib.purdue.edu/context/techmasters/article/1041/viewcontent/Thesis_jian_.pdf
Purdue Polytechnic Masters Theses
Purdue University
Mass spectrometer
Control system
Acoustics, Dynamics, and Controls
Biomedical Devices and Instrumentation
oai:docs.lib.purdue.edu:techmasters-1042
2011-06-21T15:44:24Z
publication:techmasters
publication:tech
publication:techetds
Quantifying Multiple Types of Damping Acting on Bronze-Wound Guitar Strings
Christian, Jonathan
The goal of this study was to quantify the contributions of multiple damping types acting on guitar strings for each mode over a wide frequency range so that design variables could be identified to one day create frequency based damping in guitar strings. Structural dynamic testing was used to obtain the time-response of a vibrating string in open air and in a vacuum. From this signal, each harmonic was filtered and the decay envelope was curve-fitted with a function that was a linear summation of decay functions. From the curve-fits, the damping coefficients for aerodynamic, friction, and material damping were calculated and used in the equation of motion for a single degree-of-freedom spring-mass-damper system.
The curve-fit and the spring-mass-damper model were primarily sensitive to the aerodynamic damping parameter, which allowed the other damping parameters to take on a wide range of values, some of which contradicted the laws of physics. The curve-fit and model response was more representative of mathematical convenience rather than physical relevance, as both were influenced by the summation effect of the multiple damping functions. This method shows promise in its analytical simplicity; however, future areas of study are outlined so that this method may be further refined before being used in industry.
2011-06-15T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/39
https://docs.lib.purdue.edu/context/techmasters/article/1042/viewcontent/JWC_Thesis_ETD.pdf
Purdue Polytechnic Masters Theses
Purdue University
Acoustics
Structural Dynamics
Damping
Damping Mechanisms
Curve-Fitting
Signal Processing
Acoustics, Dynamics, and Controls
Engineering Physics
oai:docs.lib.purdue.edu:techmasters-1043
2011-07-07T23:22:51Z
publication:techmasters
publication:tech
publication:techetds
Sustainable Design Optimization of Rural Houses in North China
Li, Mingliang
With the rapid economic development of China, the living standards in rural areas have been experiencing improvement over the past two decades. One important aspect of the improved living standards is housing, which has been transformed from traditional adobe or stone structures into modern brick and concrete ones. In the meantime, active heating and cooling systems are gradually being incorporated and residents are requiring more comfortable indoor air temperatures during cold winters and hot summers. However, most rural houses have no insulation in their exterior walls and roofs. The question is whether or not it is economically viable to build houses with insulated exterior walls and roofs, and to what extent should they be insulated. In order to answer these questions, the author has created one base hypothetical case and two evolutionary hypothetical cases. The base case is assumed to represent typical rural houses in the studied region of northern rural China, with its heating set point temperature at 13 °C (55 °F) and cooling set point temperature at 29 °C (84 °F). The two revolutionary hypothetical cases, reflecting the improving living standards in rural areas in the future, are the same with the base case, except that the set point temperatures are different. The heating set point temperature is 16 °C (61 °F) for evolutionary case 1 and 18 °C (64 °F) for evolutionary case 2. The cooling set point temperature is 26 °C (79 °F) for evolutionary case 1 and 23 °C (73 °F) for evolutionary case 2. The life cycle costs of each case with different insulation levels are calculated based on the initial cost and energy consumption data from EnergyPlus energy modeling software. For all three cases, it was cost effective to insulate exterior walls and roofs. The optimal insulation scenario is 50 mm (2 inches) Expanded Polystyrene (EPS) wall and 25 mm (1 inch) Extruded Polystyrene (XPS) roof for the base case. The best insulation scenarios for evolutionary case 1 and case 2 is 100 mm (3.9 inches) EPS wall and 75 mm (3 inches) XPS roof and 100 mm (3.9 inches) EPS wall and 100 mm (3.9 inches) XPS roof respectively. It has also been found that the determinants on the optimal insulation scenarios are the heating and cooling set point temperatures, energy prices, lifetimes of houses and selected discount rates.
2011-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/40
https://docs.lib.purdue.edu/context/techmasters/article/1043/viewcontent/Published_thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Building envelope
China
Rural houses
Sustainable design
Architectural Engineering
Construction Engineering and Management
oai:docs.lib.purdue.edu:techmasters-1044
2011-07-11T17:22:20Z
publication:techmasters
publication:tech
publication:techetds
BPMN Tools - A Comparative Analysis to Improve Interoperability
Pawar, Shefali N
The purpose of this research study was to investigate whether the interoperability across different vendor implementations of the BPMN 2.0 standard can be improved. The study attempted to identify significant discrepancies in the process modeling and execution notations as supported by three BPMN modeling tools with respect to the BPMN 2.0 specification. The three BPMN 2.0 tools included MID Innovator for Business Analysts, Activiti BPM Platform, and Trisotech BPMN 2.0 Modeler for Visio. An evaluation framework was used to compare the selected tools based on three classes of BPMN 2.0 objects – SIMPLE, STANDARD, and COMPLETE. Furthermore, the study tested the ability of the three tools to exchange process models in order to improve the interoperability across the tools. It was observed that there are noteworthy differences between the three tools with respect to their support for BPMN 2.0 notations and the corresponding XML process definition formats. As a result, none of the three tools can seamlessly exchange process models. Attempts were made through this study to modify the XML process model definitions to enable sharing of process models between the tools. Thus, the author identified gaps between the tools and suggested ways for bridging the identified gaps, consequently facilitating the exchange of process models. The research focused on enhancing interoperability and discusses its necessity in domains such as supply chain management (SCM), customer relationship management (CRM), enterprise resource planning (ERP), and electronic commerce (E-commerce).
2011-07-05T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/41
https://docs.lib.purdue.edu/context/techmasters/article/1044/viewcontent/Shefali_Pawar___Final_Thesis.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1044/filename/0/type/additional/viewcontent/Elsevier_License.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1044/filename/1/type/additional/viewcontent/Elsevier_Permission__Figure_2_2_.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1044/filename/2/type/additional/viewcontent/Gartner_Permission__Figure_2_3_.pdf
https://docs.lib.purdue.edu/context/techmasters/article/1044/filename/3/type/additional/viewcontent/Shapiro_Permission__Figures_4_1__4_2__4_3_.pdf
Purdue Polytechnic Masters Theses
Purdue University
BPMN
business process management
comparative analysis
exchange
interoperability
tools
oai:docs.lib.purdue.edu:techmasters-1045
2011-07-11T18:44:35Z
publication:techmasters
publication:tech
publication:techetds
Kernel Level Support for Workflow Patterns
Kumar, Manish
Kumar, Manish
In the evolution of computing technology over the decades, file system capabilities have not grown in tandem to processing power. Today, scientific computing is highly data intensive and relies on workflows. Also, scientific computations that rely on inherent workflows do not have a kernel support for workflows, and are executed essentially in a batch processing model. A file system that includes native kernel functionalities to support workflow execution would address the issue of parallel processing. Such a file system would improve scientific computing performance. This thesis describes an approach we developed to add workflow functionality to the Linux kernel and native file system to help simplify the use of workflow management systems for scientific computing. The approach is compared to Kepler workflow management system.
2011-07-11T07:00:00Z
text
https://docs.lib.purdue.edu/techmasters/42
Purdue Polytechnic Masters Theses
Purdue University
FUSE
Workflow Patterns
Kepler
Other Computer Sciences
Systems Architecture
oai:docs.lib.purdue.edu:techmasters-1046
2011-07-11T19:48:07Z
publication:techmasters
publication:tech
publication:techetds
Comparison of Clustered RDF Data Stores
Patchigolla, Venkata
Storing data in RDF format helps in simpler data interchange among different researchers compared to present approaches. There has been tremendous increase in the applications that use RDF data. The nature of RDF data is such that it tends to increase explosively. This makes it necessary to consider the time for retrieval and scalability of data while selecting a suitable RDF data store for developing applications. The research concentrates on comparing BigOWLIM. Bigdata, 4store and Virtuoso RDF stores on basis of their scalability and performance of storing and retrieving cancer proteomics and mass spectrometry data using SPARQL queries. In this research the author compares RDF data stores on a single machine as baseline and extends 4store and BigOWLIM data stores on a cluster for comparison. The author uncovers that Virtuoso has the best performance on data consisting of less than 250,000 triples whereas 4store has better scalability and performance for the larger data.
2011-07-11T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/43
https://docs.lib.purdue.edu/context/techmasters/article/1046/viewcontent/Rama_Patchigolla_Thesis_sub.pdf
Purdue Polytechnic Masters Theses
Purdue University
RDF
Database
Semantic Web
Ontology
Data Stores
Databases and Information Systems
oai:docs.lib.purdue.edu:techmasters-1047
2011-07-22T17:00:41Z
publication:techmasters
publication:tech
publication:techetds
Stereoscopic Vision's Impact on Spatial Ability Testing
Takahashi, George
A look into spatial ability testing tools and the variations that past researchers made to focus on key factors that affect test scores, will demonstrate the need for tuning traditional testing methods to accommodate a wider demographic and provide more accurate results. Due to technological limitations of the time, a large variety of past spatial tests were developed by hand-drawings. Within this research, the addition of stereoscopic vision is analyzed to determine the value of said changes on human perception of spatial entities.
2011-07-22T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/44
https://docs.lib.purdue.edu/context/techmasters/article/1047/viewcontent/Final3.pdf
Purdue Polytechnic Masters Theses
Purdue University
3D
Depth Cue
Perception
Spatial Ability
Stereoscopy
Cognition and Perception
Mechanical Engineering
oai:docs.lib.purdue.edu:techmasters-1048
2011-07-26T12:06:30Z
publication:techmasters
publication:tech
publication:techetds
A SERIOUS GAME TO TEACH SECURE CODING IN INTRODUCTORY PROGRAMMING: DESIGN, DEVELOPMENT AND INITIAL EVALUATION
Oania, Marcus
Reports of software related security breaches are becoming weekly occurrences. With newer high-profile attacks, secure coding and Information Assurance (IA) has become a subject of national and worldwide focus. Clearly, there is a need for computer science graduates with a background in information assurance. Unfortunately, it is not clear that there are many students pursuing advanced degrees with a focus on IA, and those who do, end up being hired out of their programs by government agencies. Given that a vast majority of programmers and software engineers do not have advanced degrees, there is an obvious need to teach these practices at the undergraduate level. A prototype serious game was designed and developed by the research team to teach secure coding practices to undergraduate students. In order to produce a valid and effective game, a usability test was performed on the two levels produced by the research team. This study sought to prove the current game is engaging and usable without further improvements. Although the game had adequate engagement, motivation, and appropriately conveyed relations of data validation and checking return values to game play, the study revealed the produced levels need to be re-worked and improved.
2011-07-25T07:00:00Z
text
https://docs.lib.purdue.edu/techmasters/45
Purdue Polytechnic Masters Theses
Purdue University
oai:docs.lib.purdue.edu:techmasters-1049
2011-07-26T14:27:54Z
publication:techmasters
publication:tech
publication:techetds
Automating the Fret Slotting Process Using a PLC Controlled 1.5 Axis Mill
Stratton, James
Stratton, James A. M.S., Purdue University, August 2011. Automating the Fret Slotting Process Using a PLC Controlled 1.5 Axis CNC Mill. Major Professor: Richard Mark French.
Can automation assist small job shops and hobbyists in the production of stringed instruments? This research set out to answer the question using a quantitative approach to determine if an economical CNC machine could be produced in such a fashion as to seamlessly join the workshop as an affordable, yet precise instrument to aid in the production of stringed instruments. The key was to incorporate common industrial automation equipment into the operation of the machine in an attempt to sever the dependency on outside resources, such as personal computers and shop utilities, while remaining compact enough as to not devour valuable workshop real estate. The fabricated 1.5 axis gantry mill was tested empirically by producing a population of fret boards which were measured for accuracy. Materials, methods, and statistical analysis are all included within this document. The results and conclusions of this study are provided in an attempt to answer the primary research question.
2011-07-26T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/46
https://docs.lib.purdue.edu/context/techmasters/article/1049/viewcontent/CompiledThesisJStratton.pdf
Purdue Polytechnic Masters Theses
Purdue University
automation
automated
PLC
fret
fret slot
slotting
luthier
guitar
CNC
Acoustics, Dynamics, and Controls
Computer-Aided Engineering and Design
Electro-Mechanical Systems
Manufacturing
oai:docs.lib.purdue.edu:techmasters-1050
2011-07-27T00:27:09Z
publication:techmasters
publication:tech
publication:techetds
Comparative Analysis of a Low-Speed Wind Tunnel Designed for Renewable Energy Applications
Zehrung, Craig A
This thesis describes the design, testing, and validation of an open-circuit, mid-sized wind tunnel used for the teaching of undergraduate courses and testing of green energy wind turbines. This thesis uses computational fluid dynamics to determine theoretical values for flow of the wind tunnel which were statistically compared to actual values of fluid flow. An overall analysis of efficiency and effectiveness were also performed. However, aerodynamic testing of actual prototype turbines will not be covered in this thesis, as it does not concern the tunnels adherence to theoretical flow values.
2011-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/47
https://docs.lib.purdue.edu/context/techmasters/article/1050/viewcontent/Zehrung_Thesis___Final.pdf
Purdue Polytechnic Masters Theses
Purdue University
Wind Tunnel
Renewable Energy
Wind Turbines
Wind
Tunnel
Labview
Engineering
Mechanical Engineering
oai:docs.lib.purdue.edu:techmasters-1051
2011-07-28T15:23:40Z
publication:techmasters
publication:tech
publication:techetds
MPLS Traffic Engineering -- DiffServ Aware (DS-TE)
Czerny, Dillon
The purpose of this thesis is to measure the performance effects in aDifferentiated Service aware MPLS network. This thesis is split into fourchapters. The first chapter goes into detail on the scope of the thesis, thequestions asked, the significance, and the constraints of the experiment. Thesecond chapter is a literature review of the technologies used, how they functionseparately and then research into how they have functioned together in otherstudies and experiments. The third chapter describes the process of theexperiment and the steps to finding and answering the question asked in the firstchapter. Finally, the last chapter contains a conclusion of the findings and myinterpretations. The different networks of MPLS, MPLS TE, and DS-TE all havetheir uses depending on the situation and are not necessarily directimprovements/upgrades from the previous technology.
2011-07-28T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/48
https://docs.lib.purdue.edu/context/techmasters/article/1051/viewcontent/ThesisESUB.pdf
Purdue Polytechnic Masters Theses
Purdue University
MPLS
MPLS TE
DS-TE
oai:docs.lib.purdue.edu:techmasters-1052
2011-07-28T15:50:47Z
publication:techmasters
publication:tech
publication:techetds
Characterization of Parallel Application Runtime Sensitivity on Multi-core High Performance Computing Systems
Veeraraghavan, Padma Priya
A commonly seen behavior of parallel applications is that their runtime is influenced by network communication load. The way a parallel application is run in a network and the presence of other applications and processes in the network can contribute to a wide range of variations in the runtime. Therefore, in order to achieve consistent and optimal runtimes, it is important to understand and characterize the runtime sensitivity of parallel applications with respect to execution under the presence of network communication load.
In this research, runtime sensitivities for various parallel applications were studied by applying additional network communication load. In particular, the focus was on the runtime sensitivity of parallel applications on a multi-core multi-processor (MCMP) system where less network switching and routing are involved compared to single-core single-processor machines.
The objective of this work was to determine if a previously developed sensitivity model for single-core single-processor machines still holds good for multi-core machines. For this purpose, previously developed tools (PACE and PARSE) were used to perturb the communication sub-system while executing several parallel application benchmarks such as the NAS benchmarks and PSTSWM. Runtime variations of these parallel applications were studied, under a specific network communication load, for different test cases by changing computing core allocation. A 10-node 80-core cluster was used as the test bed for this research purpose.
Several test cases were explored using a variety of core allocations (process locations) for the application under test (AUT) to simulate job scheduler fragmentation. To ensure statistical significance, several iterations (trial runs) were executed in each test case. Results indicate that the idea of application sensitivity to communication sub-system performance degradation holds for MCMP architectures.
2011-07-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/49
https://docs.lib.purdue.edu/context/techmasters/article/1052/viewcontent/priya_Final_Thesis_3.pdf
Purdue Polytechnic Masters Theses
Purdue University
Parallel application run time sensitivity
Multi-core
process allocation
High performance computing
Computational Engineering
Other Electrical and Computer Engineering
oai:docs.lib.purdue.edu:techmasters-1053
2011-07-29T15:24:36Z
publication:techmasters
publication:tech
publication:techetds
Miniature Mass Spectrometry: RF Amplitude Control System Design
Kirleis, Matthew Allen
This thesis covers the methods used to construct and characterize a custom digital RF amplitude control system. Many types of mass spectrometers exist, but few have been miniaturized as much as the Mini instruments developed at Purdue University. The goal of this research was to improve upon an earlier amplitude control system consisting of analog circuits first implemented in the Mini 11.5 mass spectrometer developed at Purdue University.
A custom set of control and data acquisition electronics were developed for testing the digital and analog control systems in a Mini 11.5 mass spectrometer chassis. A MATLAB Simulink simulation was done to aid the design of the digital controller. Software code was created in C, VHDL, and Visual Basic.NET to operate and collect mass spectra. Tests were performed to compare and contrast critical performance attributes. A cost analysis was also performed.
Important findings were that the digital controller as designed was a more costly solution by a factor of 4, but created a more linear amplification than the previous Mini 11.5 analog solution. The improved linearity increased mass resolution by 0.5. Mass drift measurements showed that the RF signal from the digital controller varied between +0.6 to -.2 m/z, but the analog solution varied between +1.7 to -0.5 m/z.
2011-07-27T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/50
https://docs.lib.purdue.edu/context/techmasters/article/1053/viewcontent/MAK_ThesisFinal_v4.pdf
Purdue Polytechnic Masters Theses
Purdue University
mass spectrometer
FPGA PID controller
RF amplifier
Analytical Chemistry
Electrical and Electronics
Signal Processing
oai:docs.lib.purdue.edu:techmasters-1054
2011-09-20T04:57:41Z
publication:techmasters
publication:tech
publication:techetds
Electric Field Analysis of Human Breast Tumors for Treatment by Electroporation
Agoramurthy, Poornima
Breast cancer is a frequently diagnosed disease in women, second only to cancers of the skin. According to the American Cancer Society there were approximately 210,000 new cases of breast cancer estimated in 2010 in the US, 20 % of which resulted in death. With such a high rate of incidence, there is clearly a need for alternate treatments, especially for in-operable tumors and chemo- and radio-resistive patients. Electrochemotherapy, a method by which high intensity, short duration electrical pulses are used to temporarily open pores of cells to enhance uptake of drugs, is gaining popularity in drug delivery for cancer treatment.
Electric field distribution is critical for effective electroporation. This thesis aims at providing a model by which breast cancer tissues can be studied and analyzed for treatment by electroporation. Maxwell SV and 13,Ansoft software packages are used for simulation of electrodes and tumor tissues. Suitable electrode models are developed for treatment of invasive and in-situ breast cancer. Finite element analyses of these models demonstrate the electric field intensity and distribution in the tumors. These results will help in improving electrical pulse-mediated drug delivery techniques for cancer treatment.
2011-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/57
https://docs.lib.purdue.edu/context/techmasters/article/1054/viewcontent/Thesis_deposited.pdf
Purdue Polytechnic Masters Theses
Purdue University
Electrical and Computer Engineering
oai:docs.lib.purdue.edu:techmasters-1055
2011-12-01T16:46:28Z
publication:techmasters
publication:tech
publication:techetds
The Impact of Alternative Dispute Resolution (ADR) in Employment Law
Ashman, Douglas
abstract
Ashman, Douglas E. Masters, Degree. Purdue University. The Impact of Alternative Dispute Resolution (ADR) in Employment Law
Major Professor: Linda Naimi
A growing group of distinguished legal observers see cause for concern as ADR methods become more institutionalized and the basic theories and practices of Civil procedure are mediated and justice becomes an exercise in compromise. It is perceived by some observers that the justice system is becoming privatized and ADR is undermining the basic tenants of the American justice system and is a growing replacement for the checks and balances of a once enviable and unique civil justice system.
This study examines the role of ADR in settling employment disputes and grievances and offers recommendations to either combat erroneously perceived ideas about the effects of ADR or suggestions to preserve the foundations of judicial review and civil procedure that protect fairness and justice in our society.
2011-12-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/56
https://docs.lib.purdue.edu/context/techmasters/article/1055/viewcontent/ashman_directed_project_APPROVED.pdf
Purdue Polytechnic Masters Theses
Purdue University
ADR
mediation
arbitration
employment law
justice
Labor and Employment Law
oai:docs.lib.purdue.edu:techmasters-1056
2011-12-01T18:43:12Z
publication:techmasters
publication:tech
publication:techetds
W.E. Bowers ans Associates, Inc. Financial Operations Manual for Construction Cost Accounting
Brown, Stephen E.
W.E. Bowers and Associates, Inc. typically hires experienced project managers eager to
diversify their work experience. W.E. Bowers and Associates, Inc. verbally instructs
project managers to properly utilize the companies forms and the processes for financial
management of projects. The verbal training typically occurs in a piecemeal fashion. It
occurs only when a new project manager asks
“How To” perform specific tasks. The
project managers all come with different backgrounds and with different backgrounds,
come different business management strategies. The creation of this financial operations
manual will aid in the training of project managers and provide the company with a
baseline for how job cost management is performed at W.E. Bowers and Associates, Inc
utilizing the WennSoft cost accounting system.
2011-11-29T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/55
https://docs.lib.purdue.edu/context/techmasters/article/1056/viewcontent/Brown_Directed_Project_11_29_11_revisions.pdf
Purdue Polytechnic Masters Theses
Purdue University
Construction Cost Accounting Software
WennSoft
Accounting
Engineering
Finance and Financial Management
oai:docs.lib.purdue.edu:techmasters-1057
2011-12-02T12:58:39Z
publication:techmasters
publication:tech
publication:techetds
Utilizing Technology to Increase the Recycled Content of Asphalt Mix Designs
Ricketts, Nicholas
This directed project examined the idea that increasing the amount of recycled asphalt product in road construction will result in a comparable performance to the current levels of recycled asphalt product in today’s pavement. A critical review of literature is structured in four areas: describing the need (financial and environmental) for the increased use of recycled materials, describing how others have addressed the issue and technology needed for increasing the use of recycled content, describing how some contractors have created the technology needed, and finally describing the direction needed in order to encourage customers and government agencies to embrace the idea of using asphalt created from a high percentage of recycled materials. Data collection involved actual projects using asphalt with an increased recycled content, comparing the performance and costs to a conventional asphalt mix.
2011-12-02T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/54
https://docs.lib.purdue.edu/context/techmasters/article/1057/viewcontent/Ricketts_Directed_Project_Final_Draft.pdf
Purdue Polytechnic Masters Theses
Purdue University
reclaimed asphalt pavement
RAP
hot mix asphalt
HyRAP
rejuvenating agents
Brooks Construction Company
Cyclean
high-RAP design mix
extraction properties
Civil Engineering
Construction Engineering and Management
Environmental Engineering
Other Civil and Environmental Engineering
oai:docs.lib.purdue.edu:techmasters-1058
2011-12-02T22:18:36Z
publication:techmasters
publication:tech
publication:techetds
Using smartphones for indoor navigation
Loulier, Benjamin Thomas
This directed projet is about the use of smartphones for indoor navigation.
Nowadays, indoor navigation is a real challenge, we are all familiar with the multiple applications of GPS based navigation but all these applications cannot be transfered in an indoor environment as we cannot receive a GPS signal inside.
The document is composed of three different parts related to indoor navigation using smartphones. The first part presents an inertial positioning system for pedestrians walking in an indoor environment, this system is implemented on an iPhone 4. In the second part we introduce a positioning system using RFID tags scattered in a building as landmarks, this system is implemented on a Nexus-S smartphones. The last part presents a multi agent model for navigation softwares, in this last part we also present an implementation of the model on an iPhone 4.
2011-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/53
https://docs.lib.purdue.edu/context/techmasters/article/1058/viewcontent/Using_smartphones_for_indoor_navigation.pdf
Purdue Polytechnic Masters Theses
Purdue University
indoor
navigation
positioning
iPhone
smartphone
inertial
rfid
dead reckoning
multi agent
Electrical and Electronics
Other Computer Engineering
oai:docs.lib.purdue.edu:techmasters-1059
2011-12-13T19:46:29Z
publication:techmasters
publication:tech
publication:techetds
Lithium-based Battery System Management and Balancing
Schmidt, William Joel, III
This thesis builds upon previous work completed for the design and evaluation of active lithium battery system management. Simulations were performed to provide a comparison for the hardware that was designed, built, and tested. An analysis of the simulation and hardware results was completed to support or disprove the initial hypothesis. A DC-DC converter was used as the source for the balancing current. Lithium polymer batteries with a 5Ah capacity were used for testing the designed hardware. The findings showed that there is a reduction in the system voltage swing during balancing as well as less time taken to decrease the imbalance delta.
2011-12-06T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/52
https://docs.lib.purdue.edu/context/techmasters/article/1059/viewcontent/WJS_Thesis___Final_Forms.pdf
Purdue Polytechnic Masters Theses
Purdue University
Active Balancing
Balance Simulation
BMS
DC-DC Converter
Lithium Battery
Electrical and Electronics
Power and Energy
oai:docs.lib.purdue.edu:techmasters-1060
2012-01-30T00:28:33Z
publication:techmasters
publication:tech
publication:techetds
The Stress Coping Skills of Undergraduate Collegiate Aviators
Kirschner, Jennifer
An important human factors research interest area is error reduction. Although pilots placed in highly stressful situations have an increased chance of making errors, they use coping skills to lower their stress level and reduce the likelihood of errors. Typically, coping skills are conceptually separated into three different types: active coping skills which attack and change the situation to make it inherently less stressful, emotionfocused coping skills which use discussion or thinking about the situation in a different way to diminish the negative emotional reaction associated with the stressful situation, and avoidant coping skills which allow one to mentally and/or physically disengage through the use of daydreams, sleep, drugs, and/or alcohol. In this research project, a sample of 49 inexperienced private pilots and 30 experienced multi-engine commercial pilots were surveyed to determine if significant differences existed between their levels of perceived stress and the frequency with which they used different types of coping skills using a one-time, written survey. Variables measured included demographic information, factors of personality, frequency of binge drinking, perceived level of stress, and coping skills usage. The results showed that there was an association between experience level and stress (F = 5.46, p = .022), emotional coping, (r = .200, p = .078) and instrumental coping (r = .201, p = .075). There was also an association between stress and self-blame (r = .273, p = .015), humor (r = -.214, p = .059), positive reframing (r = -.204, p = .071), and the frequency of binge drinking (-.200, p = .078).
2011-04-12T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/51
https://docs.lib.purdue.edu/context/techmasters/article/1060/viewcontent/THESIS.pdf
Purdue Polytechnic Masters Theses
Purdue University
pilots
coping
stress
civil aviation
collegiate aviaation
binge drinking
Industrial and Organizational Psychology
Science and Technology Studies
oai:docs.lib.purdue.edu:techmasters-1061
2012-04-16T15:20:10Z
publication:techmasters
publication:tech
publication:techetds
Assessing the Engineering Performance of Affordable Net-Zero Energy Housing
Wallpe, Jordan P
The purpose of this research was to evaluate affordable technologies that are capable of providing attractive, cost-effective energy savings to the housing industry. The research did so by investigating the 2011 Solar Decathlon competition, with additional insight from the Purdue INhome. Insight from the Purdue INhome verified the importance of using a three step design process to design a net-zero energy building. In addition, energy consumption values of the INhome were used to compare and contrast different systems used in other houses.
Evaluation of unbiased competition contests gave a better understanding of how a house can realistically reach net-zero. Upon comparison, off-the-shelf engineering systems such as super-efficient HVAC units, heat pump hot water heaters, and properly designed photovoltaic arrays can affordably enable a house to become net-zero. These important and applicable technologies realized from the Solar Decathlon will reduce the 22 percent of all energy consumed through the residential sector in the United States. In conclusion, affordable net-zero energy buildings can be built today with commitment from design professionals, manufacturers, and home owners.
2012-05-01T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/58
https://docs.lib.purdue.edu/context/techmasters/article/1061/viewcontent/Wallpe_Electronic_Thesis_4_11.pdf
Purdue Polytechnic Masters Theses
Purdue University
Net-Zero
energy
sustainability
housing
Solar Decathlon
efficiency
Purdue INhome
Architectural Engineering
Energy Systems
Other Engineering
Power and Energy
oai:docs.lib.purdue.edu:techmasters-1062
2012-04-16T17:43:11Z
publication:techmasters
publication:tech
publication:techetds
The Effects of Organizational Structure on Sustainability Report Compliance
Mink, Kurt E
The purpose of this qualitative research was to determine the organizational characteristics that contribute to developing sustainability reports with GRI A+ application levels. Judgment sampling was used to select organizations that received an A+ GRI application level in 2010. These organizations were then surveyed using a fifteen-question survey, which emulated the semi-structured interview questions utilized by Farneti and Guthrie (2007). The survey was disseminated to 107 organizations and the responses were collated and analyzed to determine important themes relevant to this research study. The results of this research study suggest a relationship between an organization’s genuine commitment to sustainability by their leadership and a sustainability report’s compliance level. Furthermore, this research also implies a relationship between the stakeholders’ sustainability expectations and the sustainability report compliance level. The combination of an organization’s leadership expressing a genuine commitment to sustainability reporting, as well as the stakeholder’s expressing expectations for sustainably promotes a sustainability-minded culture within the organization, which facilitates sustainability report production. Also, the compliance level of an organization’s sustainability report is contingent upon the organization’s ability to overcome resource constraints and to recognize the value of the market incentives generated by the development of a sustainability report. The implications of this research provide a global, multi-industry benchmark for organizations struggling with sustainability reporting compliance, government policy-makers, and stakeholders.
2012-04-01T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/62
https://docs.lib.purdue.edu/context/techmasters/article/1062/viewcontent/EffectsofOrganStrucSRComp_Mink.pdf
Purdue Polytechnic Masters Theses
Purdue University
sustainability reporting
sustainability
compliance
sustainability report
CSR
corporate social responsibility
organizational structure
Environmental Health and Protection
Environmental Indicators and Impact Assessment
Environmental Monitoring
Environmental Sciences
Sustainability
oai:docs.lib.purdue.edu:techmasters-1063
2012-04-16T20:22:56Z
publication:techmasters
publication:tech
publication:techetds
Living on the Edge:The Cost/Benefit Perceptions of TornadoSafe Rooms on the Periphery of Tornado Alley
Kuntz, Gerard
Abstract
There is a lack of correlation between the believed and actual threat of tornadoes on the periphery of Tornado Alley. The purpose of this project is to record the perceptions of homeowners and realtors of the threat posed by tornadoes in a specific geographic location and the need of tornado safe rooms to mitigate that threat and/or provide peace of mind from the potential of that threat.
The research included surveying real estate agents and residents within the specified geographic location. Real estate agents were polled for their past experience in selling properties with tornado safe rooms, and present demand for same properties in the current market, their perceptions of the tornado risk and the need for mitigation measures, and how these may affect the value of a home and the marketability of a home. Residents were polled for their perceptions of tornado risk, the cost of mitigating the tornado risk, the need of mitigation, and any prior experience with tornadoes. They were also polled on the desire of a tornado safe room in a home, and to what cost having one would be worthwhile.
The research supported the assumption that the actual threat of tornadoes does not match the perceived threat, the expected cost of a tornado safe rooms is greater than the actual cost, and that there is a significant portion of the population willing to pay for a safe room allowing for an emerging market of tornado safe rooms in either new construction or as a renovation.
2012-04-10T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/59
https://docs.lib.purdue.edu/context/techmasters/article/1063/viewcontent/GKUNTZ_DIRECTED_PROJECT_FINAL_04_13_12.pdf
Purdue Polytechnic Masters Theses
Purdue University
oai:docs.lib.purdue.edu:techmasters-1064
2012-04-17T15:09:26Z
publication:techmasters
publication:tech
publication:techetds
Acoustic Emission Detection of Metals and Alloys During Machining Operations
Nelson, Jameson K
Nelson, Jameson K. M.S., Purdue University, May 2012. Acoustic Emission Detection of Metals and Alloys During Machining Operations. Major Professor: Rodney G. Handy.
Practical correlation between material deformation attributes and theoretical concepts of machining has proven difficult to attain. The purpose of this study was to further explore trends and relationships using acoustic emission detection of materials undergoing single-point lathe turning machine processes. The majority of machining experiments that incorporate acoustic emissions focuses on tool degradation for the purposes of optimizing consumables required to manufacture mechanical devices. Experiments were implemented varying recording location, mechanical barrier condition, and machine parameters. The research focused on machining metal alloys of tantalum tungsten, nitronic 33 stainless steel, M42 tool steel, and 6061 aluminum. Variation of machine parameters included the alteration to depth of cut, coolant flow rate, cutting velocity, and feed rate of tooling. It was found that, by using capacitive microphone transducer technology, it is difficult to confidently discern the type material undergoing machine processes from significant distances. Structural spectrogram “acoustic mapping” using discrete Fourier transform based methods presented promise in uniquely identifying the type material being machined. Integral calculus methods of summation were implemented to determine the energy released during machine processes. Hypotheses proved that as stand-off distance increased and mechanical barriers were imposed detection of acoustic emissions varied in confidence. The alteration of machine parameters had varying effects on the detection of acoustic emissions. The experiments are discussed in a practical context for discovering as much about machining processes as possible.
2012-04-09T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/60
https://docs.lib.purdue.edu/context/techmasters/article/1064/viewcontent/JKN_THESIS_COMPILED_REV2.pdf
Purdue Polytechnic Masters Theses
Purdue University
Acoustics, Dynamics, and Controls
Manufacturing
Other Engineering Science and Materials
Tribology
oai:docs.lib.purdue.edu:techmasters-1065
2012-04-19T16:51:28Z
publication:techmasters
publication:tech
publication:techetds
Improving Manufacturing Processes Through Energy Monitoring
Grzelak, Andrew
Energy efficiency and sustainability are very popular topics in the current field of manufacturing. With the increase in use of automation technology as well as the recent growth in the area of energy management, there is much focus on the overall improvement of manufacturing processes. For this research a project was completed to create a system that could improve both process efficiency as well as decrease energy consumption. By taking a look at the machine level energy consumption of an automated piece of manufacturing equipment, by eliminating waste in process, both energy efficiency and operational efficiency can be improved.
Using electrical specifications from a Hurco Hawk 5M 3-axis CNC machine, an electrical cabinet was built to take the signals off the machine and output them to a LabVIEW DAQ Module. A program created in LabVIEW was designed to analyze power waveform signals and determine the state of operation of a machine. Then, total power consumption and cost of energy at the different states was calculated and displayed in a fashion that would be usable by an operator or a manager to make informed decisions on how to improve the process.
2012-04-19T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/61
https://docs.lib.purdue.edu/context/techmasters/article/1065/viewcontent/Improving_Manufacturing_Processes_Through_Energy_Monitoring.pdf
Purdue Polytechnic Masters Theses
Purdue University
Energy Monitoring
Automation
Controls and Control Theory
Energy Systems
Manufacturing
Power and Energy
oai:docs.lib.purdue.edu:techmasters-1066
2012-04-20T03:56:04Z
publication:techmasters
publication:tech
publication:techetds
Exploring Passive Solar Design in Minnesota’s Residential Construction Sector
Albers, Luke
This directed project analyzes the cost and benefit relationship of incorporating passive solar heating and cooling designs into a national home builder’s standard house plan. The orientation, glazing area, glazing type, and solar shading features of the home are all analyzed. The goal of this directed project is to determine if passive solar can make an impact on energy costs for a national home builder’s standard house plan. The focus of the study is on one standard home plan and analyzing what impact passive solar design changes can have on annual heating and cooling energy consumption. The construction costs of the design changes are calculated along with the payback period. These changes are designed to be easily reproducible and able to be applied to other homes in the regional market. The results are a very straight forward analysis that shows builders, developers, and homeowners what effects passive solar can have on standard home plans. The ultimate goal is to overcome the current barriers that have prevented widespread adoption of passive solar and bring it to the forefront of design in the mainstream residential construction market. The study utilized the residential energy simulation program called RESFEN 5.0. RESFEN 5.0 was used to calculate the annual heating and cooling loads for the simulated test home. The program allowed for variations in glazing areas, orientation, window types, shading effects, and most importantly energy costs. The conclusions of the study will show if there are certain design strategies could help to reduce the residential energy consumption for a standard national builder’s home in Minneapolis, Minnesota.
2012-04-19T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/63
https://docs.lib.purdue.edu/context/techmasters/article/1066/viewcontent/auto_convert.pdf
Purdue Polytechnic Masters Theses
Purdue University
Passive Solar
Environmental Design
oai:docs.lib.purdue.edu:techmasters-1067
2012-04-20T11:54:03Z
publication:techmasters
publication:tech
publication:techetds
Virtualization in High-Performance Computing: An Analysis of Physical and Virtual Node Performance
Jungels, Glendon M
The process of virtualizing computing resources allows an organization to make more efficient use of it's resources. In addtion, this process enables flexibility that deployment on raw hardware does not. Virtualization, however, comes with a performance penalty. This study examines the performance of utilizing virtualization technology for use in high performance computing to determine the suitibility of using this technology. It makes use of a small (4 node) virtual cluster as well as a 4 node physical cluster. The impacts on input/output operation are examined as well as performance of each cluster using two widely utilized tools, NAS Parallel Benchmarks and X High Performance Linpack.
2012-04-18T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/64
https://docs.lib.purdue.edu/context/techmasters/article/1067/viewcontent/auto_convert.pdf
Purdue Polytechnic Masters Theses
Purdue University
Virtualization
Xen
High Performance Computing
Digital Communications and Networking
Other Computer Engineering
oai:docs.lib.purdue.edu:techmasters-1068
2012-04-20T17:31:45Z
publication:techmasters
publication:tech
publication:techetds
Sustainable purchasing practices: An investigation into current industry awareness and practice.
Palisi, Francis X
This research study illustrates the growing importance of sustainable purchasing practices and answers two important questions: what is the current awareness of U.S. organizations on sustainable purchasing practices with regards to evaluating, selecting, and retaining suppliers and to what extent are these practices being implemented? The research conducted is based upon an in-depth literature review of green purchasing and sustainability initiatives. With an ever increasing global economy with no intention of slowing down it is ever important to look towards sustainability practices and the biggest impact organizations can make is in the purchasing department. The researcher begins by explaining their reasoning for conducting the research, then builds the readers understanding of sustainability and supply chain management, so as to dive further into the subject of how sustainable purchasing can be the most advantageous method to bringing about triple bottom savings to an organization. This section is followed by the researcher’s methodology and ending results that show the current awareness and implementation of U.S. plumbing, heating, cooling and piping (PHCP) manufacturing and distribution firms who participate in sustainable purchasing practices (SPP).
2012-04-19T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/65
https://docs.lib.purdue.edu/context/techmasters/article/1068/viewcontent/FrankPalisiDP_final.pdf
Purdue Polytechnic Masters Theses
Purdue University
sustainability
supply chain
awareness
practices
Plumping heating cooling and piping
Curriculum and Instruction
Educational Assessment, Evaluation, and Research
Industrial Engineering
Industrial Technology
oai:docs.lib.purdue.edu:techmasters-1069
2012-04-26T11:44:38Z
publication:techmasters
publication:tech
publication:techetds
Security Implications of the Cisco Nexus 1000V
Peterson, Benjamin D
Virtualization is a technology that has become increasingly popular with those wishing to reduce the energy consumption of their datacenters. This is especially true since virtualization technology allows multiple physical servers to be consolidated onto a single physical server in the form of virtual machines. Virtual networking devices have been created to allow these virtual machines to communicate amongst each other and with outside networks. Initially these virtual networking devices were crude; however, partnerships such as the one between Cisco and VMware have led to products such as the Nexus 1000V that have improved this network functionality. Despite the creation of the Nexus 1000V, the security implications of using the virtual switch have remained unclear. This research aimed to solve this. The outcomes of this research included tests of vulnerabilities previously or currently found on physical switches, an analysis of the communications used by the Nexus 1000V to support distributed switching, and an analysis of the effects of the switch existing as a virtual machine.
2012-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/66
https://docs.lib.purdue.edu/context/techmasters/article/1069/viewcontent/Peterson__Benjamin___Thesis_final.pdf
Purdue Polytechnic Masters Theses
Purdue University
Cisco Nexus 1000V
Network Security
Networking
Virtualization
oai:docs.lib.purdue.edu:techmasters-1070
2012-04-26T16:43:27Z
publication:techmasters
publication:tech
publication:techetds
Analyzing Financial Data through Interactive Visualization
Yadav, Fizi
This investigation explored the role data visualization in the scientific community and its effect on the cognitive ability of an individual. The research attempted to answer the question, “ Whether appropriate data visualization helps in better understanding of corporate financial data?” and used quantitative methods to gain an insight. Participants in the study were divided into two groups of 30 each, with one group receiving the treatment devised for the research and the other using the common prevalent method. Both the groups were subjected to a test, based upon the analysis of which a conclusion was derived. The subjects were tested on their cumulative scores on the test as well as the time taken to complete the test. The resulting analysis concluded that visualization did influence the scores and time taken although the difference was more prominent for the scores than for the time. This meant that the particular visualization impacted the accuracy more than the speed. Although this could be disputed by the inverse relationship shared by accuracy and speed, it is in line with the purpose of a true visualization which should aid in better understanding of the underlying data and its relationships.
2012-05-01T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/67
https://docs.lib.purdue.edu/context/techmasters/article/1070/viewcontent/yadav.pdf
Purdue Polytechnic Masters Theses
Purdue University
Financial
Visualization
Processing IDE
Categorical Data Analysis
Corporate Finance
Graphics and Human Computer Interfaces
oai:docs.lib.purdue.edu:techmasters-1071
2012-04-26T18:46:31Z
publication:techmasters
publication:tech
publication:techetds
Research on the Relationship between Story and the Popularity of Animated Movies
Wang, Meng
Over the past ten years, animated films have become increasingly more important to the movie industry. Their increasing popularity is evident when looking at box office hits like Shrek, Kongfu Panda, and Iceage, to name a few.
No one will deny that some animated movies are more attractive to audiences than others. Previous studies show that a film’s story is the decisive factor that makes a film a success or a flop. The story plays a central role in bringing in an audience and thus determing a film’s critical acclaim and financial success. The story concept ties together various elements that are all closely related and together contribute to the overall effect of an animated film. This research aims to explore the relationship between an animated film’s story and its popularity in order to better understand what makes a successful film as well as provide a useful reference for animation studios as they are deciding whether or not to pursue a certain script.
2012-04-10T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/68
https://docs.lib.purdue.edu/context/techmasters/article/1071/viewcontent/ETD_Meng_Wang.pdf
Purdue Polytechnic Masters Theses
Purdue University
Animated Movies
Story
Popularity
Film and Media Studies
oai:docs.lib.purdue.edu:techmasters-1073
2012-05-02T00:40:07Z
publication:techmasters
publication:tech
publication:techetds
Incorporating Reverse Engineering Methodology into Engineering Curricula
Wanamaker, Trevor
Wanamaker, Trevor W., M.S., Purdue University, May 2012. Incorporating Reverse Engineering Methodology into Engineering Curricula. Major Professor: Craig L. Miller.
Using a qualitative research approach, this study investigated the thoughts and feelings of students regarding the question, “what factors need to be considered when Reverse Engineering (RE) methodology is incorporated into engineering curricula?” The participants in the study were from the Introduction to Graphics for Manufacturing course at the West Lafayette campus of Purdue University. An RE survey was given to the all students enrolled in the course and 10 select students were given the opportunity to use a 3D handheld scanner in a hands-on learning exercise. Each of the 10 students underwent two interviews with questions pertaining to the study, the course, the technology, and the factors they felt were important to RE. The instructor for the course and an industry professional were interviewed to support the data gathered from the student interviews. The outcome of the study was a list of factors that students, the instructor, and the industry professional felt were important to RE implementation. This study provides information important to implementing RE into engineering curricula and suggestions for future research in the field of RE.
2012-03-17T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/69
https://docs.lib.purdue.edu/context/techmasters/article/1073/viewcontent/Wanamaker_Thesis_Final.pdf
Purdue Polytechnic Masters Theses
Purdue University
reverse engineering
CAD
engineering
3D modeling
3D scanning
Engineering
Other Engineering
oai:docs.lib.purdue.edu:techmasters-1075
2012-05-10T13:34:37Z
publication:techmasters
publication:tech
publication:techetds
ORGANIZING RESEARCH AND DEVELOPMENT IN CYBER FORENSICS
Ripberger, Francis
The field of Cyber Forensics is still in its early stages of development. There are many
possibilities for conducting research to progress the field, but not everyone knows what
they are. This study sought to identify the general needs of the field’s practitioners
and discover any prevailing issues preventing the Cyber Forensic field from
maintaining or establishing validity in its procedures, software, and expert witnesses.
This study took volunteers from universities that offer a cyber forensic program and
each state’s Law Enforcement cyber crime units. All participants were given three
rounds of questions in order to discover the issues of the field. From these questions,
lists of categorized issues were generated. The top issues were chosen from each
category, as well as the top ten issues overall.
2012-04-26T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/70
https://docs.lib.purdue.edu/context/techmasters/article/1075/viewcontent/RipbergerFrancis_Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Cyber Forensics
Academic
Law Enforcement
Research
Cyber Forensic Expert
oai:docs.lib.purdue.edu:techmasters-1076
2012-06-12T22:50:12Z
publication:techmasters
publication:tech
publication:techetds
The Development of a Hybrid Safety Course
Ulmer, Michael Robert
Abstract
The purpose of this project was to develop a hybrid version of a work place safety course for use at Ivy Tech Community College. Students attending Ivy Tech in the Industrial Technology program currently have little options to taking classes other than the traditional face-to-face method, which creates certain challenges for the students. With the creation of a hybrid course, students who take this class are required to drive to campus less each week, resulting in additional savings to the students. A hybrid course also gives the students another option to the traditional delivery model, resulting in increased learning potential for those students looking for an alternative to in-class instruction.
For this project the current course material was evaluated to determine which material would be appropriate for hybrid delivery using BlackBoard as the classroom management software. Once the content was determined, the material was modified to run on BlackBoard and the course shell was developed. Lastly, the course outline and syllabus was created for the new hybrid course.
The result of this project helped determine the effectiveness and future need for additional hybrid course offerings in the Industrial Technology program at Ivy Tech.
2012-06-01T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/71
https://docs.lib.purdue.edu/context/techmasters/article/1076/viewcontent/auto_convert.pdf
Purdue Polytechnic Masters Theses
Purdue University
Hybrid
Safety
OSHA
oai:docs.lib.purdue.edu:techmasters-1077
2012-07-06T21:11:42Z
publication:techmasters
publication:tech
publication:techetds
A Comparative Study of User Preferences of a Personalized Academic Website
Desai, Dipti U
ABSTRACT
There has been a growing concern over the enrollment by American students into Science, Technology, Engineering and Mathematic (STEM) fields of study. Following globalization there is a direct competition for jobs in the United States with lower-wage workers around the globe and the US, thereby, is on the verge of losing its global technological competitiveness (Committee on Prospering in the Global Economy of the 21st Century: An Agenda for American Science and Technology, National Academy of Sciences, National Academy of Engineering, Institute of Medicine, 2007). Governmental as well as non-profit organizations are constantly searching for ideas, programs and initiatives that encourage more US citizens to consider STEM careers. One of the most common recommendations out of these councils and existing programs is to involve such groups whose numbers in STEM do not match well with their numbers as a proportion of the overall population of the nation. Underrepresented groups need more attention, personalization, motivation and encouragement by institutions and industries for the government to practically achieve their targeted numbers in STEM (Business-Higher Education Forum, 2010). In the Internet age, with resources highlighting the importance of Internet personalization and website usability principles to web users, this study focuses on redesigning the Computer and Information Technology (CIT) department website to provide prospective students with a more personalized experience, and learn their perceptions of the website, its contents and usability.
2012-07-06T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/72
https://docs.lib.purdue.edu/context/techmasters/article/1077/viewcontent/Merged_Files_Final_Thesis_Draft_July2.pdf
Purdue Polytechnic Masters Theses
Purdue University
Website usability
Other Computer Engineering
oai:docs.lib.purdue.edu:techmasters-1078
2012-07-23T19:04:47Z
publication:techmasters
publication:tech
publication:techetds
The Utilization of Context to Adapt the Interface of a Computer
Delaveau, Ludovic
This research examines the possibility for a computer to adapt its interface and its settings to the current environment, through the notion of situations and corresponding profiles. These situations are group of context elements and tasks or activities performed in that operating conditions, such as the activities conducted at the workplace or the relaxation time at home. The profiles are set of configuration values for the computer, such as the network services. Adapting the computer serves the user as it takes care of putting his computer in the right mode to be efficient in the activity performed. In order to demonstrate the feasibility of this adaption, a prototype is implemented, using a context analysis and the activation of corresponding settings.
2012-07-19T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/73
https://docs.lib.purdue.edu/context/techmasters/article/1078/viewcontent/thesis_delaveau.pdf
Purdue Polytechnic Masters Theses
Purdue University
situation-awareness
context-awareness
Graphics and Human Computer Interfaces
oai:docs.lib.purdue.edu:techmasters-1079
2012-08-02T21:36:11Z
publication:techmasters
publication:tech
publication:techetds
DEVELOPING A FORENSIC METHOD OF ACQUISITION AND ANALYSIS OF THE MOTOROLA XOOM TABLET
Tolman, Justin A
There is currently no forensically sound method for analyzing the Motorola Xoom tablet. The purpose of this research is to determine whether a forensically sound method can be developed for the Motorola Xoom tablet running the Ice Cream Sandwich Android operating system. This research is important for investigators as the more forensically sound method offers greater protection relating to an individual’s privacy rights. Furthermore, tablets are a relatively new form of digital devices that are rising quickly in the public. This research sets the groundwork for investigating tablets in a forensically sound manner. The tablet is used in such a way as to emulate the real use of such a device. Sources of evidence such as images, web browsing, WiFi information and email accounts are used as test objects. The research minimizes manual user interaction, delivers an outline of what can be acquired and the forensic integrity of such items upon recovery, and the reason for any changes to the device. Furthermore, this research presents questions for further research relating to the topic.
2012-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/74
https://docs.lib.purdue.edu/context/techmasters/article/1079/viewcontent/DEVELOPING_A_FORENSIC_METHOD_OF_ACQUISITION_AND_ANALYSIS_OF_THE_MOTOROLA_XOOM_TABLET.pdf
Purdue Polytechnic Masters Theses
Purdue University
oai:docs.lib.purdue.edu:techmasters-1080
2012-11-03T02:21:38Z
publication:techmasters
publication:tech
publication:techetds
Incorporating Reverse Engineering Methodology into Engineering Curricula
Wanamaker, Trevor
Wanamaker, Trevor W., M.S., Purdue University, May 2012. Incorporating Reverse Engineering Methodology into Engineering Curricula. Major Professor: Craig L. Miller.
Using a qualitative research approach, this study investigated the thoughts and feelings of students regarding the question, “what factors need to be considered when Reverse Engineering (RE) methodology is incorporated into engineering curricula?” The participants in the study were from the Introduction to Graphics for Manufacturing course at the West Lafayette campus of Purdue University. An RE survey was given to the all students enrolled in the course and 10 select students were given the opportunity to use a 3D handheld scanner in a hands-on learning exercise. Each of the 10 students underwent two interviews with questions pertaining to the study, the course, the technology, and the factors they felt were important to RE. The instructor for the course and an industry professional were interviewed to support the data gathered from the student interviews. The outcome of the study was a list of factors that students, the instructor, and the industry professional felt were important to RE implementation. This study provides information important to implementing RE into engineering curricula and suggestions for future research in the field of RE.
2012-03-17T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/75
https://docs.lib.purdue.edu/context/techmasters/article/1080/viewcontent/Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
reverse engineering
CAD
engineering
3D modeling
3D scanning
oai:docs.lib.purdue.edu:techmasters-1081
2012-12-07T19:08:32Z
publication:techmasters
publication:tech
publication:techetds
Opportunity Lost: Mismanagment of the Closeout Phase of Construction Projects
Rogers, Jared
In nearly every construction project, completing the project on time is one of the most critical things for everyone involved. Late project completion causes a wide variety of complications for the entire project team. This paper seeks to identify some of the causes for delay in the last phase of construction projects: the closeout phase.
Original research was conducted to gather input from construction industry professionals about their experiences with the closeout phase of projects. Factors perceived to cause closeout delay were identified, along with perceptions about the closeout performance of survey participant’s firms. The research validated the study’s premise that the closeout phase is difficult to successfully execute, for a variety of reasons. The collective responses also shed light on the perceived effectiveness of several strategies to encourage timely project completion.
2012-12-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/76
https://docs.lib.purdue.edu/context/techmasters/article/1081/viewcontent/JAR_Directed_Project_FINAL_12.7.2012_REV.pdf
Purdue Polytechnic Masters Theses
Purdue University
construction industry
closeout
punch list
project management
delay
substantial completion
beneficial occupancy
project success
Construction Engineering and Management
oai:docs.lib.purdue.edu:techmasters-1082
2012-12-10T15:15:04Z
publication:techmasters
publication:tech
publication:techetds
Feasibility of Reconstructing Decommissioned Urban Schools: Emphasis Private Involvement
Spinaris, RA, George J.
Decommissioned urban schools in the United States have become a problem despite well-intentioned efforts of federal, state and local authorities to reconstruct them. The challenge to school districts, superintendants, local and state authorities is threefold – one arising from the education policy and declining student enrollment. The second challenge is due to inadequate funds for maintenance and renovation of existing facilities. The third from the architectural point of view stemming from an architectural and technological modernity to avoid not so much the possibility of urban sprawl but possible clash of community interests. Urban Sprawl is defined as “The unplanned, uncontrolled spreading of urban development into areas adjoining the edge of a city” (The American, 2009). Thus the feasibility of reconstructing decommissioned urban schools and the subsequent challenge to the architect are associated with avoiding urban sprawl, spatial mismatch, technological modernity, and to enhance community interest and concerns.
The literature will review three case studies, (Boston, Georgia & Nevada, and Buffalo, NY). In 1997,Bostonfaced challenges in decreasing student enrollment, decommissioned urban schools, building abandonment, lack of public housing and related land use and sought creative alternatives. The second in Georgia and Nevada were compelled toward privatization due to unavailability of funds to abandon schools that are increasingly being supplanted by a system of accepting schools. The third, Buffalo Public School, (NY) No. 60 was identified by private investors as a prime candidate to create new urban senior housing. The directed project will provide the results of a literature review, case study development, conclusions and recommendations. The project identified areas of interest in articulating a strategic framework of analysis for the reconstruction of decommissioned urban schools in the United States utilizing the Buffalo NY School model.
2012-12-07T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/77
https://docs.lib.purdue.edu/context/techmasters/article/1082/viewcontent/Feasibility_of_Reconstructing_Decommissioned_Urban_Schools____Emphasis_Private_Involvement.pdf
Purdue Polytechnic Masters Theses
Purdue University
Architectural History and Criticism
Business
Historic Preservation and Conservation
Urban, Community and Regional Planning
oai:docs.lib.purdue.edu:techmasters-1083
2013-02-28T15:47:34Z
publication:techmasters
publication:tech
publication:techetds
Investigations of Attitudes towards Offshore Wind Farm Development in Ireland: Their Implication towards Future Development of the Industry.
Melia, Aidan
This current research investigates what the attitudes of Irish people are towards the development of offshore wind farms in Ireland. Using a qualitative approach, a questionnaire is carefully designed and distributed among a sample population from three coastal communities. One is located on the west coast and two on the east coast. The two locations on the east coast have an involvement in offshore wind farms. One of the locations plays host to Ireland’s only offshore wind farm, while there are plans in place for an offshore wind farm at the other location. The results from the questionnaires are analyzed with regard to the respondent’s proximity to the coast, their age, their gender and their educational levels. This analysis results in a number of conclusions being generated. Overall, it is found that there is a strong support amongst the respondents for the development of offshore wind farms in Ireland.
2013-02-27T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/78
https://docs.lib.purdue.edu/context/techmasters/article/1083/viewcontent/Aidan_Melia___Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Energy
Alternative Energy
Offshore Wind Energy
Attitudes
Ireland
Civil and Environmental Engineering
Mechanical Engineering
Social and Behavioral Sciences
oai:docs.lib.purdue.edu:techmasters-1084
2013-04-09T23:31:08Z
publication:techmasters
publication:tech
publication:techetds
Control Charts as a Productivity Improvement Tool in Construction
Ault, Jospeh Hubert
This study examined the use of individuals control charts to facilitate the productivity improvement of repetitive construction processes. Cycles times for excavation, forming, and reinforcing processes were observed using stratified random sampling during the construction of six residential home foundations. The cycle time information was plotted on control charts followed by an intervention, with the applicable crew members and management, to analyze the charts and propose solutions to any problems identified. Following the intervention, more samples were collected for comparison to the baseline observations collected before the intervention. The mean cycle times were compared before and after the interventions using an independent t-test.
While the results of the all the interventions showed improvement, only one decrease in the mean cycle time during the excavation process proved to be statistically significant. The statistical power of this significant result was only 0.17 due to the fact that the test only had three degrees of freedom. While reliable significant results were not found, this study demonstrates the principles of using control charts in construction to identify process inefficiencies. The results of the method proposed in this study are highly dependent upon the expertise of the personnel involved in the root cause analysis process.
2013-04-04T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/79
https://docs.lib.purdue.edu/context/techmasters/article/1084/viewcontent/Thesis__deposit_corrected_.pdf
Purdue Polytechnic Masters Theses
Purdue University
construction
Construction Engineering and Management
oai:docs.lib.purdue.edu:techmasters-1085
2013-04-12T18:13:18Z
publication:techmasters
publication:tech
publication:techetds
CLEERhub.org Adoption by EAFIT University Engineering Faculty Members: A Longitudinal Study
Mendez Mena, Diego M
The main purpose of this study is to identify and comprehend faculty members’ perception of attributes of the diffusion of the technological innovation CLEERhub.org at EAFIT University, College of Engineering, in Medellin, Colombia. Moreover, this work attempts to understand causes and motivators that might lead to innovation adoption or rejection. The Diffusion of Innovations Theory serves as the framework to develop an appropriate assessing instrument that allows accurate measuring of user opinions towards the practice of CLEERhub.org in their educational research work in Engineering. In order to correctly assess user perception of the embracement process of such technological/cyberinfrastructure innovation, the concept of Online Communities of Practice is taken also into account. Results, obtained in two collection rounds, indicate that one year after the introduction of CLEERhub the EAFIT engineering community is still located in the initial knowledge stage of the diffusion process.
2013-04-05T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/80
https://docs.lib.purdue.edu/context/techmasters/article/1085/viewcontent/CLEERhub_Study___dmendezm_Thesis__ETD_1.pdf
Purdue Polytechnic Masters Theses
Purdue University
Diffusion of Innovations
Education
Engineering
CLEERhub
Engineering Education
oai:docs.lib.purdue.edu:techmasters-1086
2013-04-18T19:22:51Z
publication:techmasters
publication:tech
publication:techetds
Examination of Stability in Fingerprint Recognition across Force Levels
O'Connor, Kevin J
O’Connor, Kevin J. M.S., Purdue University, May, 2013. Examination of Stability in Fingerprint Recognition across Force Levels. Major Professor: Stephen J. Elliott.
In this thesis, the instability of zoo animal classifications for individuals across different force levels are illustrated, which answered the question, “Is an individual’s performance unstable with regards to the covariate under study in a fingerprint recognition system?” The covariate for this research was force levels (5 N, 7 N, 9 N, 11 N, and 13 N), in which 154 subjects interacted on a fingerprint device. The influence of applied force on the performance of a fingerprint algorithm was examined and supports in showing how zoo classifications change with the respected force levels. Zoo classifications have been used to group particular individuals as doves, worms, phantoms, chameleons, or normal. The purpose of the animal classifications was to determine whether subjects’ similarity score varies at different force levels and to quantify that instability by a score index. The stability score index formula (S.S.I) was used to calculate the stability for each individual from one force level to the next. This contribution can give researchers an idea of stability or instability for individuals performing on any biometric system.
2013-04-18T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/81
https://docs.lib.purdue.edu/context/techmasters/article/1086/viewcontent/KevinOConnor_Thesis_FINAL.pdf
Purdue Polytechnic Masters Theses
Purdue University
Biometrics
Fingerprint recognition
oai:docs.lib.purdue.edu:techmasters-1088
2013-06-11T16:29:47Z
publication:techmasters
publication:tech
publication:techetds
A Novel Approach for Design of Acoustical Enclosure of Projectors
Panahkhahi, Sara
To create a quiet environment inside buildings, it is necessary to decrease the noise level, which partly originates from electromechanical devices. This study explored a method for designing an acoustic enclosure for projectors that generate noises in a wide band frequency range. The source of noise in projectors is their fans, which cause the structure borne and airborne noise. Fans are required in projectors that use lamps as an illumination source to dissipate the heat emitted from their lamps. Sound measurements were performed to determine the frequency range that is generated by the projector. Based on the data obtained from the measurements, the sound level of the projector and the design of the enclosure were studied. Another aspect of this project was to find a way to cool down the projector while it was operating in a completely sealed enclosure. Based on the information about the power consumption of the projector and the temperature range that the projector can safely operates under, the cooling system was proposed. Finally the sound and temperature measurements were performed on the fabricated prototype of the enclosure to evaluate its functionality.
2013-06-10T07:00:00Z
text
https://docs.lib.purdue.edu/techmasters/83
https://docs.lib.purdue.edu/context/techmasters/article/1088/viewcontent/Sara_Panahkhahi_Thesis_Final_Version.pdf
Purdue Polytechnic Masters Theses
Purdue University
Acoustical Enclosure
Projector
Sound Attenuation
Passive Noise Cancellation
oai:docs.lib.purdue.edu:techmasters-1089
2013-07-02T15:30:17Z
publication:techmasters
publication:tech
publication:techetds
Why do Indiana Pre-Service Technology Education Majors Choose the Profession
Freeland, Traves L
The purpose of this descriptive study was to look at the factors that influence pre-service technology education majors to choose to become teachers. The pre-service teachers of three Indiana technology education teacher preparatory programs were given an internet survey to collect demographic data and determine what factors influence current pre-service teachers. The results of this study were compared to the results from a study done by Harris (2007). The findings resulted in similar factors that were the most common identified as being influential. Those factors included personal interest or hobbies, high school or middle school teacher, and past experiences in technology education courses.
2013-07-02T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/82
https://docs.lib.purdue.edu/context/techmasters/article/1089/viewcontent/Traves_Freeland_MS_Thesis___final_with_form_9_attached.pdf
Purdue Polytechnic Masters Theses
Purdue University
technology
education
influences
parents
teachers
motivation
Engineering Education
Junior High, Intermediate, Middle School Education and Teaching
Secondary Education and Teaching
oai:docs.lib.purdue.edu:techmasters-1090
2013-12-13T16:42:20Z
publication:techmasters
publication:tech
publication:techetds
Data center recovery best practices: Before, during, and after disaster recovery execution
Brotherton, Heather M
This qualitative multiple case study analysis reviews well documented past information technology disasters with a goal of identifying practical before, during, and after disaster recovery best practices. The topic of cyberinfrastructure resiliency is explored including barriers to cyberinfrastructure resiliency. Factors explored include: adherence to established procedures, staff training in recovery procedures, chain of command structure, recovery time and cost, and mutual aid relationships. Helpful tools and resources are included to assist planners.
2011-05-01T07:00:00Z
text
https://docs.lib.purdue.edu/techmasters/87
http://works.bepress.com/cgi/viewcontent.cgi?article=1007&context=heatherbrotherton
Purdue Polytechnic Masters Theses
Purdue University
Information Technology
Disaster Recovery
Business Continuity
Data Center Management
Critical Infrastructure
Information Systems
Cyber Infrastructure
Business Administration, Management, and Operations
Computer and Systems Architecture
Hardware Systems
Management Information Systems
Other Operations Research, Systems Engineering and Industrial Engineering
Risk Analysis
Technology and Innovation
oai:docs.lib.purdue.edu:techmasters-1091
2014-07-21T16:49:40Z
publication:techmasters
publication:tech
publication:techetds
A Novel Microgrid Demand-Side Management System for Manufacturing Facilities
Harper, Terance J
Hutzel, William J
Foreman, James C
Adams, Aaron L
Kulatunga, Athula
Thirty-one percent of annual energy consumption in the United States occurs within the industrial sector, where manufacturing processes account for the largest amount of energy consumption and carbon emissions. For this reason, energy efficiency in manufacturing facilities is increasingly important for reducing operating costs and improving profits. Using microgrids to generate local sustainable power should reduce energy consumption from the main utility grid along with energy costs and carbon emissions. Also, microgrids have the potential to serve as reliable energy generators in international locations where the utility grid is often unstable.
For this research, a manufacturing process that had approximately 20 kW of peak demand was matched with a solar photovoltaic array that had a peak output of approximately 3 KW. An innovative Demand-Side Management (DSM) strategy was developed to manage the process loads as part of this smart microgrid system. The DSM algorithm managed the intermittent nature of the microgrid and the instantaneous demand of the manufacturing process. The control algorithm required three input signals; one from the microgrid indicating the availability of renewable energy, another from the manufacturing process indicating energy use as a percent of peak production, and historical data for renewable sources and facility demand. Based on these inputs the algorithm had three modes of operation: normal (business as usual), curtailment (shutting off non-critical loads), and energy storage.
The results show that a real-time management of a manufacturing process with a microgrid will reduce electrical consumption and peak demand. The renewable energy system for this research was rated to provide up to 13% of the total manufacturing capacity. With actively managing the process loads with the DSM program alone, electrical consumption from the utility grid was reduced by 17% on average. An additional 24% reduction was accomplished when the microgrid and DSM program was enabled together, resulting in a total reduction of 37%. On average, peak demand was reduced by 6%, but due to the intermittency of the renewable source and the billing structure for peak demand, only a 1% reduction was obtained. During a billing period, it only takes one day when solar irradiance is poor to affect the demand reduction capabilities. To achieve further demand reduction, energy storage should be introduced and integrated.
2014-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/85
https://docs.lib.purdue.edu/context/techmasters/article/1091/viewcontent/Terance_Harper_MS__Final_Thesis_2014_Submission.pdf
Purdue Polytechnic Masters Theses
Purdue University
Microgrid
Energy Management
Demand-Side Management
Renewables
Solar
Manufacturing
Energy
Energy Systems
Manufacturing
oai:docs.lib.purdue.edu:techmasters-1092
2015-04-22T16:09:25Z
publication:techmasters
publication:tech
publication:techetds
The Integration of Heat Resources in a Solar Thermal-Heat Pump Hydronic System
DeGrove, John
According to the U.S. Department of Energy, roughly 41% of the energy consumed in the U.S. is used the power buildings. Within that number, almost half is used to heat or cool the building. Current technologies allow for consistent thermal management, but most utilize energy harvested from fossil fuels or convert electricity back into thermal energy. Background literature shows that the utilization of alternative heat resources such as heat pumps and solar thermal collectors can greatly reduce the energy used for heat delivery while producing adequate heating performance. A combined hydronic system using a bank of solar thermal collectors in parallel with a heat pump was designed and installed to feed various loads. After commissioning the system, it was run for 17 days during the end of the winter season to ascertain the performance of the solar collectors and the heat pump as heat sources. The heat pump supplied 65% of the thermal energy while the solar thermal collectors provided 35% of the thermal energy. Overall, the system reached a total energy factor of 1.95. The results show that the system performs better than an electric-based or fuel burning system, but improvements can be made through controls optimization and operating the system year-round.
2015-05-01T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/88
https://docs.lib.purdue.edu/context/techmasters/article/1092/viewcontent/John_DeGrove_Final_Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Alternative Energy
Renewables
Heat Pump
Solar Thermal
Hydronic
Energy Systems
oai:docs.lib.purdue.edu:techmasters-1093
2015-04-28T20:33:05Z
publication:techmasters
publication:tech
publication:techetds
Design and Evalution of a Primary / Secondary Pumping System for a Heat Pump Assisted Solar Thermal Loop
Krockenberger, Kyle G.
A heat pump assisted solar thermal system was designed, commissioned, tested and analyzed over a period of two years. The unique system uses solar energy whenever it is available, but switches to heat pump mode at night or whenever there is a lack of solar energy. The solar thermal energy is added by a variety of flat plat solar collectors and an evacuated tube heat pipe solar collector. The working medium in the entire system is a 50% mixture of propylene glycol and water for freeze protection. During the design and evaluation the primary / secondary pumping system was the focus of the evaluation. Testing within this research focused on the operation modes, pump stability, and system efficiency. It was found that the system was in full operation, the pumps were stable and that the efficiency factor of the system was 1.95.
2015-05-01T07:00:00Z
text
https://docs.lib.purdue.edu/techmasters/86
Purdue Polytechnic Masters Theses
Purdue University
Solar Thermal
Heat Pump
hybrid solar thermal
Efficient heating
Hydronic heating
heating loop
primary secondary system
oai:docs.lib.purdue.edu:techmasters-1094
2015-05-13T14:21:35Z
publication:techmasters
publication:tech
publication:techetds
Assessing Impact of Exposure to Cyberphysical Systems on Student Interest in Information Technology Careers
Serrano Anazco, Mayari I
The main purpose of this project is to determine if the use of Information Technology (IT) tools, specifically cyberphysical devices, in outreach sessions will promote interest of young individuals in pursuing IT careers. The Diversity office of Purdue’s College of Technology offers a number of outreach sessions to a variety of target populations throughout the year. Each department in the college has an opportunity to present a session related to a field of study offered by the department. The research was carried out thru the Spring 2015 semester during the DOiT and Vision outreach programs offered through the college’s Diversity office. The participants of both the DOiT and Vision programs are 11th grade students who are exploring technology majors. The researcher directed the sessions for the Computer and Information Technology department and used a cyberphysical device to introduce students to programming. Participants of the outreach session were requested to complete two Internet-based surveys. The responses were processed using a paired t-test, two-sample t-test, and correlational statistics.
The research sugested that when comparing the additional interaction with a cyberphysical device to a session that only used the simulation tool to visualize the outcomes, there was no statistically-significant increase in student interest in IT with the addition of the device. A weak linear relationship was found to be present between interest and self-beliefs.
2015-05-13T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/84
https://docs.lib.purdue.edu/context/techmasters/article/1094/viewcontent/Thesis_Mayari_Serrano_A.pdf
Purdue Polytechnic Masters Theses
Purdue University
Information Technology
cyberphysical device
interest
outreach
STEM
Digital Circuits
Educational Assessment, Evaluation, and Research
Hardware Systems
Science and Mathematics Education
oai:docs.lib.purdue.edu:techmasters-1095
2015-07-16T09:59:11Z
publication:techmasters
publication:tech
publication:techetds
Eco-design Integration into New Product Development Processes: Comparison between LCA Software and CAD-integrated Tools
Hernandez Dalmau, Maria I
The constant growth of environmental concerns and in order to satisfy the increasing population demands, designers have started to integrate eco-design parameters in early design stages. The technological development that happened in the last decade has started to integrate LCA methods within CAD tools, allowing non-geometric data to be integrated in a typical geometrical model. The main research interest of this thesis is focused on the evaluation of the use of these emerging CAD tools, as tools capable to evaluate the futures environmental impacts of products and processes. This thesis studies through three comparative case studies if SolidWorks Sustainability as a CAD tool integrating LCA features, is an acceptable and feasible software to perform a real LCA. The LCA software used for the comparison is GaBi. Results from the analyses revealed that SolidWorks Sustainability works as a trade-off solution introducing sustainability features into product design. However, it does not provide an accurate and extensive analysis the same way a dedicated LCA does. Thus, CAD-integrated tools should be only used as comparative tools. Further research with different products, settings, and software will bring more precise conclusions about the accuracy of these CAD tools.
2015-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/94
https://docs.lib.purdue.edu/context/techmasters/article/1095/viewcontent/Thesis_FinalDoc.pdf
Purdue Polytechnic Masters Theses
Purdue University
Life Cycle Assessment
Environmental Impacts
Ecodesign
Sustainability
Product Life Cycle
CAD Tools
Environmental Engineering
Environmental Studies
oai:docs.lib.purdue.edu:techmasters-1097
2015-12-03T16:13:09Z
publication:techmasters
publication:tech
publication:techetds
EFFECT OF STRONTIUM IN SOLDERING RESISTANCE
Zhu, Pengyu
ABSTRACT
Pengyu Zhu. M.S., Purdue University, December 2015. Effect of Strontium in Soldering Resistance. Major Professor: Qingyou Han.
Extrusive effect has been taken in the area of die soldering study because such phenomenon is responsible to die failures. Die failure causes huge amount of maintenance cost and machines shutting down. Knowing the mechanism of die soldering and soldering resistance saves not only money but also reduces machine downtime. Industry has found that strontium, instead of iron conventionally, has significant effect in enhancing soldering resistance of H13 steel. Previous studies on strontium effect proposed the ideas that strontium changed the surface tension and wet angle of melting aluminum and also formed a layer on the melting surface. Thus, the diffusion between aluminum and iron was restricted. In this study, the author aimed to discover the oxide layer of strontium and verify the proposals. Approximately 0.03%wt to 0.05%wt of strontium in aluminum alloy can effectively reduce die soldering. In this thesis, the chemical and metallurgical effects of strontium were analyzed. Mold filling experiments and solidification simulation were conducted. Temperature gradient during solidification was studied. Microstructure including distribution of strontium and strontium oxide layer were studied by SEM and BSE. It has been found that strontium is segregated in the eutectic region, forming intermetallic phase and oxide.
2015-12-03T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/93
https://docs.lib.purdue.edu/context/techmasters/article/1097/viewcontent/Thesis.pdf
Purdue Polytechnic Masters Theses
Purdue University
Engineering
oai:docs.lib.purdue.edu:techmasters-1098
2015-12-23T14:46:48Z
publication:techmasters
publication:tech
publication:techetds
Web Based Cyber Forensics Training for Law Enforcement
Sturgeon, Nick
Training and education are two of the most important aspects within cyber forensics. These topics have been of concern since the inception of the field. Training law enforcement is particularly important to ensure proper execution of the digital forensics process. It is also important because the proliferation of technology in to society continues to grow at an exponential rate. Just as technology is used for good there are those that will choose to use it for criminal gains. It is critical that Law Enforcement have the tools and training in cyber forensics. This research looked to determine if web based training was a feasible platform for cyber forensics training. A group of Indiana State Police Troopers were asked to participate in an online study where they were presented cyber forensics training material. That study showed that there was statistical significance between the treatment groups and the control group. The results from the study showed that web based training is an effective means to train a large group of law enforcement officers.
2015-12-08T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/92
https://docs.lib.purdue.edu/context/techmasters/article/1098/viewcontent/Sturgeon_Thesis___Final.pdf
Purdue Polytechnic Masters Theses
Purdue University
Web Based
Cyber Forensics Training
and Law Enforcement
Computer Law
Educational Assessment, Evaluation, and Research
Educational Methods
Information Security
Law Enforcement and Corrections
oai:docs.lib.purdue.edu:techmasters-1099
2016-05-16T16:42:54Z
publication:techmasters
publication:tech
publication:techetds
Quit Playing With Your Watch: Perceptions Of Smartwatch Use
Gaeta, Christopher M
This study identified perceptions and social norms that may affect smartwatch adoption. Interviews were conducted to identify perceptions of smartwatch use and norms that might affect those perceptions. Smartwatch use was found to activate norms associated with wristwatch use – specifically, smartwatch users’ peers took offense to the users looking at their wristwatches. This study also found that norms prevent the use of smartwatches’ voice controls in public and various perceptions of smartwatch use and ownership.
2016-04-12T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/91
https://docs.lib.purdue.edu/context/techmasters/article/1099/viewcontent/thesis_final.pdf
Purdue Polytechnic Masters Theses
Purdue University
smartwatch
social
norms
user experience
Science and Technology Studies
Social Psychology
oai:docs.lib.purdue.edu:techmasters-1100
2017-04-26T17:03:14Z
publication:techmasters
publication:tech
publication:techetds
INTERNAL AND EXTERNAL FACTORS INFLUENCING ENROLLMENT INTO AN UNDERGRADUATE ARABIC LANGUAGE PROGRAM IN INDIANA: A SURVEY OF UNIVERSITY FRESHMEN AND SOPHOMORES
Mallari, Tyler J
Within the rankings of world languages, Arabic takes a prominent place, being the fifth most-spoken language in the world (Lane, 2016). Despite the surge of concern in modern media with relations in the Middle East, particularly in Arab-populated countries, very little focus has been put on improving enrollment in Arabic programs in the United States, and in particular in the Midwest. At Purdue University, enrollment in Arabic language courses have only been low and no effort has been made on the part of the university or the department to understand this trend from more than a purely statistical analysis of enrollment numbers (Purdue, 2016). In the present study, freshman and sophomore perceptions of an undergraduate Arabic program at Purdue University were evaluated with specific regards to the relationship between enrollment and motivations students had for enrolling or not enrolling in the program’s courses. Despite the participation of only one student enrolled in Arabic language courses at the university, factors found that significantly affected student enrollment into foreign language courses included student perceptions about personal abilities and the foreign language departments themselves, student perceptions about the availability of jobs in their field which required the use of a foreign language and the requirement or non-requirement of foreign language courses in student plans of study. Results were discussed in terms of student responses to qualitative survey, whose responses are described and characterized quantitatively.
2017-04-26T07:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/90
https://docs.lib.purdue.edu/context/techmasters/article/1100/viewcontent/Thesis_Final.pdf
Purdue Polytechnic Masters Theses
Purdue University
Near Eastern Languages and Societies
Organization Development
oai:docs.lib.purdue.edu:techmasters-1101
2018-07-24T18:49:06Z
publication:techmasters
publication:tech
publication:techetds
A Longitudinal Analysis on the Feasibility of Iris Recognition Performance for Infants 0-2 Years Old
Hutchison, Torrey
The focus of this study was to longitudinally evaluate iris recognition for infants between the ages of 0 to 2 years old. Image quality metrics of infant and adult irises acquired on the same iris camera were compared. Matching performance was evaluated for four groups, infants 0 to 6 months, 7 to 12 months, 13 to 24 months, and adults. A mixed linear regression model was used to determine if infants’ genuine similarity scores changed over time. This study found that image quality metrics were different between infants and adults but in the older group, (13 to 24 months old) the image quality metric scores were more likely to be similar to adults. Infants 0 to 6 months old had worse performance at an FMR of 0.01% than infants 7 to 12 months, 13 to 24 months, and adults.
2018-01-01T08:00:00Z
text
application/pdf
https://docs.lib.purdue.edu/techmasters/89
https://docs.lib.purdue.edu/context/techmasters/article/1101/viewcontent/Thesis_Approved_Final_Copy.pdf
Purdue Polytechnic Masters Theses
Purdue University
Infant Biometrics
Biometrics
Iris Recognition
Information Security