Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2015

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 811 - 840 of 22270

Full-Text Articles in Entire DC Network

Recipient Of The 2015 Alumni Distinguished Leadership Award, Gabriel Demombynes '89 Dec 2015

Recipient Of The 2015 Alumni Distinguished Leadership Award, Gabriel Demombynes '89

Alumni Distinguished Leadership Award

As an economist at the World Bank, Dr. Gabriel Demombynes works on issues of poverty and inequality in developing countries. He is best known for his work arguing for the greater use of the scientific method in evaluating international development programs. Together with co-author Michael A. Clemens, he published a groundbreaking critique of the Millennium Villages Project, a high-profile rural development project implemented in several communities in sub-Saharan Africa. Dr. Demombynes holds both a BS in Civil and Environmental Engineering and a BA from the Plan II Liberal Arts Honors Program at the University of Texas at Austin, as well …

Go to article

On The Discovery Of Social Roles In Large Scale Social Systems, Derek Doran Dec 2015

On The Discovery Of Social Roles In Large Scale Social Systems, Derek Doran

Computer Science and Engineering Faculty Publications

The social role of a participant in a social system is a label conceptualizing the circumstances under which she interacts within it. They may be used as a theoretical tool that explains why and how users participate in an online social system. Social role analysis also serves practical purposes, such as reducing the structure of complex systems to relationships among roles rather than alters, and enabling a comparison of social systems that emerge in similar contexts. This article presents a data-driven approach for the discovery of social roles in large scale social systems. Motivated by an analysis of the present …

Go to article

Design, Fabrication, And Testing Of A 3d Printer Based Microfluidic System, Carlton A. Mcmullen Dec 2015

Design, Fabrication, And Testing Of A 3d Printer Based Microfluidic System, Carlton A. Mcmullen

Graduate Theses and Dissertations

A pneumatically actuated PDMS based microfluidic devices were designed and fabricated by soft-lithography. Two types of molds were fabricated out of different material for this experiment. The first mold, (device 1), was fabricated from a sheet of Polymethyl methacrylate (PMMA) material, similar to Plexiglas. The device features were micro-engraved onto the face of the material. The second mold, (device 2), was fabricated from the use of fused deposition modeling (FDM) 3D printing. The pumping efficiency of the PDMS devices was analyzed through the characterization of the micro-pumps flowrate with respect to the pumps driving pressure and the actuation frequency. Tested …

Go to article

The Effects Of Meloidogyne Incognita And Heterodera Glycines On The Yield And Quality Of Edamame In Arkansas, Juliet Fultz Dec 2015

The Effects Of Meloidogyne Incognita And Heterodera Glycines On The Yield And Quality Of Edamame In Arkansas, Juliet Fultz

Graduate Theses and Dissertations

Edamame (Glycine max), also known as vegetable soybean, was introduced to the United States from Japan in 1890 and has been growing in popularity as a nutrient-rich, low-sugar snack in recent years. In 2012, the American Vegetable Soybean and Edamame, Inc. established the first domestic commercial processing plant in Mulberry, Arkansas and contracted local growers for production. Since the crop is harvested when seed are immature, management practices are different from those for traditional soybean. Plant-parasitic nematodes, particularly Meloidogyne incognita (southern root-knot) and Heterodera glycines (soybean cyst), are common in Arkansas and are pests of concern for edamame growers. Edamame …

Go to article

Development Of Pre-Stressed Cfrp Fatigue Retrofits For Common Steel Bridge Connections, Korey Albert Pough Dec 2015

Development Of Pre-Stressed Cfrp Fatigue Retrofits For Common Steel Bridge Connections, Korey Albert Pough

Graduate Theses and Dissertations

Aging or deterioration of the nation’s bridge infrastructure is a significant issue that requires attention. Causes for much of this deterioration can be attributed to two main factors, 1) corrosion, and 2) metallic fatigue, both of which work together to reduce the strength and serviceability of bridge components over time. In many instances, strengthening of bridge components using localized retrofits offers an economical and fast solution for increasing the longevity of existing steel bridges; however, such retrofits must be resilient to further corrosion and fatigue damage. In this study, a localized retrofit is developed using pre-stressed Carbon Fiber Reinforced Polymer …

Go to article

Investigation Of A Numerical Algorithm For A Discretized Rubber-Belt Continuously Variable Transmission Dynamic Model And Techniques For The Measurement Of Belt Material Properties., Brian Gene Ballew Dec 2015

Investigation Of A Numerical Algorithm For A Discretized Rubber-Belt Continuously Variable Transmission Dynamic Model And Techniques For The Measurement Of Belt Material Properties., Brian Gene Ballew

Graduate Theses and Dissertations

A numerical algorithm for modeling the dynamic response of a rubber-belt Continuously Variable Transmission (CVT) belt is recreated. The numerical attributes applied to the algorithm and difficulties with numerical stability are discussed in detail. The degrees of freedom of the system have been expanded to include the dynamics of the engine torque output and vehicle loads such as rolling resistance and aerodynamic drag. This was done to emphasize the use of the model as an analysis tool for simulating CVT/engine/vehicle response. The increased degrees of freedom require the addition of a linear dampening element between belt nodes to dampen resonance …

Go to article

Applications Of Cultural Theory And Empirical Analysis Of Sustainable Energy Policy Preferences In Arkansas, John Henry Kester Iii Dec 2015

Applications Of Cultural Theory And Empirical Analysis Of Sustainable Energy Policy Preferences In Arkansas, John Henry Kester Iii

Graduate Theses and Dissertations

The local policy arena is ripe for research on policy elite decisionmaking because where policy diffusion is concerned, previous studies focus on state-to-state and city-to-city dynamics. Therefore, there is a significant opportunity to expand understanding about the adoption of policies and policy diffusion at the local level. Identification of individual level determinants that signify policy adoption is a cornerstone to fostering this knowledge. This study examines such preference indicators found among policy elites in select Arkansas cities. For this research, the primary theoretical perspective for evaluating individual determinants is cultural theory, which has shown strong correlation to individual policy preference …

Go to article

2015 December, Office Of Communications & Marketing, Morehead State University. Dec 2015

2015 December, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Press releases for December of 2015.

Go to article

Clemson Commencement Program, December 2015, Clemson University Dec 2015

Clemson Commencement Program, December 2015, Clemson University

Clemson Commencement Programs

No abstract provided.

Go to article

The Protection Of Water Resources As A Justification For Self-Defense In International Humanitarian Law, Mark Tyler Dec 2015

The Protection Of Water Resources As A Justification For Self-Defense In International Humanitarian Law, Mark Tyler

Brigham Young University Journal of Public Law

No abstract provided.

Go to article

Inflationary Dynamics In Guatemala, Thomas M. Fullerton Jr., Miguel Martinez, Wm. Doyle Smith, Adam G. Walke Dec 2015

Inflationary Dynamics In Guatemala, Thomas M. Fullerton Jr., Miguel Martinez, Wm. Doyle Smith, Adam G. Walke

Departmental Papers (E & F)

Short-run price dynamics for Guatemala are analyzed using a linear transfer function methodology. This approach has previously been employed for other national economies such as the United States, Mexico, Colombia, Ecuador, and Nigeria. The data for this study range from 1960 to 2010. Inflation is measured using the consumer price index. Explanatory variables include the monetary base, real output, interest rates, and the exchange rate. All of the estimated coefficients exhibit the arithmetic signs hypothesized by the theoretical model. Almost all of the parameter estimates satisfy the 5-percent significance criterion and all exhibit economically plausible magnitudes. Estimation results indicate that …

Go to article

Recipient Of The 2015 Alumni Titan Award, Michael Suh '97 Dec 2015

Recipient Of The 2015 Alumni Titan Award, Michael Suh '97

Alumni Titan Award

Mr. Suh currently serves as the treasurer and chair of the Finance Committee for the IMSA Fund Board of Directors. Mr. Suh has been a loyal and generous donor to the IMSA Fund for 10 years. In 2006 he became an advocate for the IMSA Fund to establish an endowment program. His advocacy for “stability and investment” was a critical factor in influencing IMSA and the IMSA Fund to establish its first endowment. Mr. Suh graduated from the University of Chicago with a BA in Economics, Mathematics and Statistics and an Administration MBA from the University of Chicago in Analytic …

Go to article

Emergent Themes Surrounding The Implementation Of The Common Core State Standards For Mathematics For Students With Learning Disabilities In Mathematics, Andrew R. Mills Dec 2015

Emergent Themes Surrounding The Implementation Of The Common Core State Standards For Mathematics For Students With Learning Disabilities In Mathematics, Andrew R. Mills

All NMU Master's Theses

As the nation transitions into a new national curriculum, the Common Core State Standards for Mathematics (CCSSM), educators face the challenge of meeting the needs of a diverse student population coupled with a change in standards. The purpose of this phenomenological study was to understand educators’ perceptions surrounding the implementation of these standards specific to students with learning disabilities in mathematics. Five rural, middle school educators were interviewed using a series of questions that investigated their experiences related to implementation of the CCSSM. Interviews were recorded and transcribed. Coding was used to identify emergent themes surrounding the phenomenon. Six emergent …

Go to article

Interval Methods For Data Fitting Under Uncertainty: A Probabilistic Treatment, Vladik Kreinovich, Sergey P. Shary Dec 2015

Interval Methods For Data Fitting Under Uncertainty: A Probabilistic Treatment, Vladik Kreinovich, Sergey P. Shary

Departmental Technical Reports (CS)

How to estimate parameters from observations subject to errors and uncertainty? Very often, the measurement errors are random quantities that can be adequately described by the probability theory. When we know that the measurement errors are normally distributed with zero mean, then the (asymptotically optimal) Maximum Likelihood Method leads to the popular least squares estimates. In many situations, however, we do not know the shape of the error distribution, we only know that the measurement errors are located on a certain interval. Then the maximum entropy approach leads to a uniform distribution on this interval, and the Maximum Likelihood Method …

Go to article

Toward Unification Of Explicit And Implicit Invocation-Style Programming, Yoonsik Cheon Dec 2015

Toward Unification Of Explicit And Implicit Invocation-Style Programming, Yoonsik Cheon

Departmental Technical Reports (CS)

Subprograms like procedures and methods can be invoked explicitly or implicitly; in implicit invocation, an event implicitly causes the invocation of subprograms that are registered an interest in the event. Mixing these two styles is common in programming and often unavoidable in developing such software as GUI applications and event-based control systems. However, it isn't also uncommon for the mixed use to complicate programming logic and thus produce unclean code, code that is hard to read and understand. We show, through a small but realistic example, that the problem is not much on mixing two different styles itself but more …

Go to article

A Systematic Derivation Of Loop Specifications Using Patterns, Aditi Barua, Yoonsik Cheon Dec 2015

A Systematic Derivation Of Loop Specifications Using Patterns, Aditi Barua, Yoonsik Cheon

Departmental Technical Reports (CS)

Any non-trivial program contains loop control structures such as while, for and do statements. A formal correctness proof of code containing loop control structures is typically performed using an induction-based technique, and oftentimes the most challenging step of an inductive proof is formulating a correct induction hypothesis. An incorrectly-formulated induction hypothesis will surely lead to a failure of the proof. In this paper we propose a systematic approach for formulating and driving specifications of loop control structures for formal analysis and verification of programs. We explain our approach using while loops and a functional program verification technique in which a …

Go to article

Simplest Innovations Are, Empirically, The Most Promising: An Explanation, Olga Kosheleva, Vladik Kreinovich Dec 2015

Simplest Innovations Are, Empirically, The Most Promising: An Explanation, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

Many examples show that the simplest innovation are the most promising. In this paper, we provide a theoretical explanation for this empirical observation.

Go to article

A Study Of Ethics For Accounting Students At East Tennessee State University, Jordan Warhurst Dec 2015

A Study Of Ethics For Accounting Students At East Tennessee State University, Jordan Warhurst

Undergraduate Honors Theses

What is being done to stop the increase of accounting scandals and frauds? This study focuses on ethics teaching for accounting students at the undergraduate level. This study asks the question, "have students increased in their use of professional judgement as defined by the AICPA code of Professional Conduct?"

Go to article

Stem Stories, December 2015, #1, Daniel Vorwerk Dec 2015

Stem Stories, December 2015, #1, Daniel Vorwerk

STEM Stories

Department Spotlight - Department of Physics

Go to article

Detecting Real-Time Check-Worthy Factual Claims In Tweets Related To U.S. Politics, Fatma Dogan Dec 2015

Detecting Real-Time Check-Worthy Factual Claims In Tweets Related To U.S. Politics, Fatma Dogan

Computer Science and Engineering Theses - Archive

In increasing democracy and improving political discourse, political fact-checking has come to be a necessity. While politicians make claims about facts all the time, journalists and fact-checkers oftentimes reveal them as false, exaggerated, or misleading. Use of technology and social media tools such as Facebook and Twitter has rapidly increased the spread of misinformation. Thus, human fact-checkers face difficulty in keeping up with a massive amount of claims, and falsehoods frequently outpace truths. All U.S. politicians have successively adopted Twitter, and they make use of Twitter for a wide variety of purposes, a great example being making claims to enhance …

Go to article

Qp-Subdue: Processing Queries Over Graph Databases, Ankur Goyal Dec 2015

Qp-Subdue: Processing Queries Over Graph Databases, Ankur Goyal

Computer Science and Engineering Theses - Archive

Graphs have become one of the preferred ways to store structured data for various applications such as social network graphs, complex molecular structure, etc. Proliferation of graph databases has resulted in a growing need for effective querying methods to retrieve desired information. Querying has been widely studied in relational databases where the query optimizer finds a sequence of query execution steps (or plans) for efficient execution of the given query. Until now, most of the work on graph databases has concentrated on mining. For querying graph databases, users have to either learn a graph query language for posing their queries …

Go to article

Lung Cancer Subtype Classification From Whole Slide Histopathological Images, Dheeraj Ganti Dec 2015

Lung Cancer Subtype Classification From Whole Slide Histopathological Images, Dheeraj Ganti

Computer Science and Engineering Theses - Archive

Lung Cancer is one of the most serious diseases causing death for human be- ings. The progression of the disease and response to treatment di ers widely among patients. Thus it is very important to classify the type of tumor and also able to predict the clinical outcomes of patients. Majority of lung cancers is Non-Small Cell Lung Cancer (NSCLC) which constitutes of 84 % of all the type of lung cancers. The two major subtypes of NSCLC are Adenocarcinoma (ADC) and Squamous Cell Car- cinoma (SCC). Accurate classi cation of the lung cancer as NSCLC and its subtype classi …

Go to article

Quantitative Analysis Of Scalable Nosql Databases, Surya Narayanan Swaminathan Dec 2015

Quantitative Analysis Of Scalable Nosql Databases, Surya Narayanan Swaminathan

Computer Science and Engineering Theses - Archive

NoSQL databases are rapidly becoming the customary data platform for big data applications. These databases are emerging as a gateway for more alternative approaches outside traditional relational databases and are characterized by efficient horizontal scalability, schema-less approach to data modeling, high performance data access, and limited querying capabilities. The lack of transactional semantics among NoSQL databases has made the application determine the choice of a particular con- sistency model. Therefore, it is essential to examine methodically, and in detail, the performance of different databases under different workload conditions. In this work, three of the most commonly used NoSQL databases: MongoDB, …

Go to article

Speaker Identification In Live Events Using Twitter, Minumol Joseph Dec 2015

Speaker Identification In Live Events Using Twitter, Minumol Joseph

Computer Science and Engineering Theses - Archive

The prevalence of social media has given rise to a new research area. Data from social media is now being used in research to gather deeper insights into many different fields. Twitter is one of the most popular microblogging websites. Users express themselves on a variety of different topics in 140 characters or less. Oftentimes, users “tweet” about issues and subjects that are gaining in popularity, a great example being politics. Any development in politics frequently results in a tweet of some form. The research which follows focuses on identifying a speaker’s name at a live event by collecting and …

Go to article

Interactive Dashboard For User Activity Using Network Flow Data, Lalit Kumar Naidu Dec 2015

Interactive Dashboard For User Activity Using Network Flow Data, Lalit Kumar Naidu

Computer Science and Engineering Theses - Archive

Data visualization is critical in analytical systems containing multi-dimensional dataset and problems associated with increasing data size. It facilitates the data explanation process of reasoning data and discovering trends with visual perception that are otherwise not evident within the data in its raw form. The challenge involved in visualization is presenting data in such a way that helps end users in the process of information discovery with simple visuals. Interactive visualizations have increasingly become popular in recent years with prominent research in the field of information visualization. These techniques are heavily used in web-based applications to present myriad forms of …

Go to article

Development Of A Methodology And Sample Preparation To Evaluate Reliability Of Oil Cooled Data Center, Venkata Naga Indu Sravani Kota Dec 2015

Development Of A Methodology And Sample Preparation To Evaluate Reliability Of Oil Cooled Data Center, Venkata Naga Indu Sravani Kota

Mechanical and Aerospace Engineering Theses - Archive

Liquid immersion cooling is not a new concept which is slowly emerging as an alternative solution to conventional chilled air cooling systems for data centers. The main idea is to build a body of knowledge to help industry make more informed regarding mechanical reliability of IT equipment in mineral oil immersed systems. The goal is to develop a testing procedure for evaluating the reliability of electronic packages and components when immersed in mineral oil. PCB’s, chip packages, passive components like capacitors, inductors, resistors, diodes, cables and wiring form the most important parts of a server used in data centers. The …

Go to article

Thermal Analysis Of Disk Brake In Order To Study The Brake Fluid Vaporization Phenomenon Of A Formula Sae Car, Anurag Dey Dec 2015

Thermal Analysis Of Disk Brake In Order To Study The Brake Fluid Vaporization Phenomenon Of A Formula Sae Car, Anurag Dey

Mechanical and Aerospace Engineering Theses - Archive

The brake system is inarguable one of the most critical aspect of a vehicle safety. It has always been the major concern for design engineers to develop a system that gives a steady performance with respect to time. In order to achieve that feat, one of the most common problems that arises in maintaining a brake is the problem of brake fluid vaporization. Brake fluids, being hygroscopic in nature, absorb moisture over a period of time. It is one of the prime reasons for reducing the longevity of brake fluid volume inside the brake caliper as the boiling point of …

Go to article

Automatic Carrier Landing System For V/Stol Aircraft Using L1 Adaptive And Optimal Control, Shashank Hariharapura Ramesh Dec 2015

Automatic Carrier Landing System For V/Stol Aircraft Using L1 Adaptive And Optimal Control, Shashank Hariharapura Ramesh

Mechanical and Aerospace Engineering Theses - Archive

This thesis presents a framework for developing automatic carrier landing systems for aircraft with vertical or short take-off and landing capability using two different control strategies - gain-scheduled linear optimal control, and L1 adaptive control. The carrier landing sequence of V/STOL aircraft involves large variations in dynamic pressure and aerodynamic coefficients arising because of the transition from aerodynamic-supported to jet-borne flight, descent to the touchdown altitude, and turns performed to align with the runway. Consequently, the dynamics of the aircraft exhibit a highly non-linear dynamical behavior with variations in flight conditions prior to touchdown. Therefore, the implication is the need …

Go to article

Cfd Modeling And Parametric Study Of Vapor Chamber As Heat Spreaders For High-Power Electronic Devices, Dhanraj Arun Patil Dec 2015

Cfd Modeling And Parametric Study Of Vapor Chamber As Heat Spreaders For High-Power Electronic Devices, Dhanraj Arun Patil

Mechanical and Aerospace Engineering Theses - Archive

Technological developments have resulted in a growing demand for high power electronic devices. Although these high power devices meet the high performance requirements, they also generate a very large amount of heat which adversely affects their operating efficiency. Most part of the heat within a package is generated at the chip and hence it is imperative to keep junction temperature as low as possible. This is commonly achieved by using heat sinks mounted directly on top of the package. Heat sinks provide a significant enhancement in cooling by increasing the surface area. However, base thickness of heat sinks limits its …

Go to article

Estimation Of Fracture Mechanics Parameters In 3d Tsv Package During Chip Attachment Process, Mohammed Shahid Ali Dec 2015

Estimation Of Fracture Mechanics Parameters In 3d Tsv Package During Chip Attachment Process, Mohammed Shahid Ali

Mechanical and Aerospace Engineering Theses - Archive

Nowadays, the packaging of electronic products is becoming revolutionized, since the packages are becoming more and more complex, dense, thinner and lighter for greater portability. Miniaturization of packages is being taken to the next level, and hence, 3D packaging has become a hot topic in the present research area. Three dimensional chips stacking with TSV technology has gained momentum to meet such requirements of significant miniaturization and power reduction which result in increased performance. However, the unique issues related to yield and reliability of critical areas in TSV based 3D ICs need to be evaluated. Therefore, Reliability of such electronic …

Go to article

First Prev Next Last