Digital Commons Network^™

An Emperical Evaluation Of Adequacy Criteria For Testing Concurrent Programs, Gaurav Saini

Computer Science and Engineering Theses - Archive

A concurrent program contains two or more threads that execute concurrently and work together to perform some task. Concurrency increases the efficiency of a program. Testing of concurrent programs has been a challenging task because of the inherent non-determinism. Most approaches proposed for concurrent program testing employ, explicitly or implicitly, a coverage criterion to measure test adequacy. In order to apply those approaches, we must first choose a criterion that suits best for our programs. There is a need for quantitative results of evaluation regarding the effectiveness of the various coverage criteria used for the testing of concurrent programs. Such …

Low Phase Noise Voltage-Controlled Oscillator Design, Zhipeng Zhu

Electrical Engineering Dissertations - Archive

Two kinds of voltage-controlled oscillators (VCO) - active inductor based VCO and LC cross-coupled VCO - are studied in this work. Although the phase noise performance is not competitive, the proposed active inductor based VCO provide an alternative method to VCO design with very small chip area and large tuning range. The measurement shows a test oscillator based on active inductor topology successfully oscillates near 530MHz band. The phase noise of the widely used LC cross-coupled VCO is extensively investigated in this work. Under the widely used power dissipation and chip area constraints, a novel optimization procedure in LC oscillator …

Power Management Integrated Circuits Design, Functionality Analysis And Applications, Zheng Li

Electrical Engineering Dissertations - Archive

Power management is playing a significant role in modern electronics. Good power management is especially important for portable devices that rely on batteries. By smartly managing how the power is directed to different components of a system, e.g., reducing power to components that are not being used, the efficiency as well as the battery lifetime can be doubled or tripled. There exists a large family of integrated circuits (IC) that are used for power management, e.g., linear regulators, switching regulators, power controllers, hot swap controllers, etc. The voltage reference is one of the key components in this family. For high …

Comparison Of Search-Based And Kernel-Based Methods For Graph-Based Relational Learning, Chris Manuel Gonsalves

Computer Science and Engineering Theses - Archive

Graph-based relational learning has been the focus of relational learning for quite some time. As most of the real-world data is structured, and hence cannot be represented in a single table, various logic-based and graph-based techniques have been proposed for dealing with structured data. Our goal is to perform an in-depth analysis of two such graph-based learning systems. We have selected Subdue to represent the search-based approach and support vector machine (SVM) with graph kernels to represent the kernel-based approach. We perform a comparison between search-based and kernel-based approaches and evaluate their performance in various domains. A search-based approach to …

A Framework For A Dynamic Invocation Interface And High-Level Interoperability For Mobile Agent Platforms, Vamsi K. Putrevu

Computer Science and Engineering Theses - Archive

The mobile agent paradigm for distributed systems is inherently suitable for many applications ranging from network management to e-commerce. One inherent problem to its wide spread use is communication between disparate agent platforms and reducing overheads while doing the same. Not all platforms for mobile agents are the same. The Mobile Agent Facility (MAF) proposal is an attempt to standardize this execution environment, this thesis proposes a framework extending the current MAF specification, by which inter-agent communication can be achieved in a more scalable fashion by interpreter based mobile agent systems. The future of the Internet depends on its ability …

The Operation Platform Recommendation For The Deregulated Utility Industry In Thailand, Chai Chompoo-Inwai

Electrical Engineering Dissertations - Archive

Transmission Congestion Management (TCM) plays a significant role in power system operation under today deregulated environment. It has two major functions of an apparatus to keep power system running within acceptable security limits, and of a tool allocating financial obligation to market participants then paying back to transmission grid investors. TCM issue has been widely debating during a past decade, until now, it is still an opened issue extensively discussed in the current structure of competitive environment. In the United State, there are existing two successful stories of TCM under different operation schemes, the former is PJM with Nodal Congestion …

Monitoring And Analyzing Distributed Cluster Performance And Statistics Of Atlas Job Flow, Sreeranjani Ramprakash

Computer Science and Engineering Theses - Archive

Grid3 is a Grid facility used by many High Energy Physics experiments to enable physicists to process data intensive and CPU intensive jobs more effectively as well as more efficiently. Amongst other things, the highlights of Grid3 are participation by more than 25 sites across the U.S. and Korea which collectively provide more than 2000 CPU's, resources used by seven different scientific applications, including three high energy physics simulations and four data analyses in high energy physics, bio-chemistry, astrophysics and astronomy, more than 100 individuals are currently registered with access to the Grid, a peak throughput of 500-900 jobs running …

Sql-Based Approach To Significant Interval Discovery In Time-Series Data, Sunit Shrestha

Computer Science and Engineering Theses - Archive

With time-series data, events (like turning off a light, opening garage door, turning on TV) occur with a high degree of certainty not at specific time points but within time intervals (sequence of time points). So, it is useful for applications to consider data as contiguous time points. The smallest interval that satisfies the criteria of interval-confidence (i.e., ratio of total support of participating time points and the number of days) is termed as Significant Interval (SI). Significant Interval Discovery (SID) algorithm finds SIs from time-series data. The main focus of this thesis is on the improvement of existing SID …

Quantitative Comparison Of Two Approaches To Agent Cooperation, Jose Ramon Espino

Computer Science and Engineering Theses - Archive

Multi-agent systems (MASs) are characterized by collections of autonomous agents that interact with each other in simple ways, but the collection of agents as a whole is characterized by emergent behavior (EB) which will have properties that individual agents do not. Engineers want to design artificial MASs for a variety of reasons including military operations. The idea is for the EB to be carrying out the mission itself. In this scenario, the agents are relatively inexpensive and expendable. A large body of work exists in MAS research for military applications and a variety of different designs have been proposed. Because …

Shared Data Acquisition System For Real-Time Power Systems Applications, Yi-Fang Hsu

Electrical Engineering Theses - Archive

Digital signal processing chip (DSP's) can be used to perform data analysis computation and have very good performance in real-time system. Digital filters can be designed with consideration of both magnitude and phase responses for digital re-sampling in power system applications. The design consists of two parts: magnitude approximation and group delay compensation. It compromises between the amount of calculation needed to implement the filters and the performance of the filters, which makes the filters good candidates for both real-time and offline applications.

Utility Based Resource Aware Framework For Information Caching And Sharing In Mobile And Distributed Systems, Huaping Shen

Computer Science and Engineering Dissertations - Archive

Along with the technology advancements in mobile and wireless networks, ubiquitous information service is becoming a reality in which users can access the information anytime anywhere. However, the user mobility, network heterogeneity and resource constraints impose significant challenges to provide ubiquitous information services. In this dissertation, a utility based resource aware framework is proposed to enhance ubiquitous information availability to mobile users through data caching and peer-to-peer sharing. The framework considers the constrained resources of mobile and distributed environments and provides flexible, efficient and scalable data access services to the mobile users. The major contributions of this framework are as …

Efficient And Adaptive Schemes For Consistent Information Sharing In Wireless Mobile And Peer-To-Peer Networks, Zhijun Wang

Computer Science and Engineering Dissertations - Archive

With the tremendous growth of applications in wireless mobile and Peer-to-Peer (P2P) networks, significant research efforts have been made to improve the quality of sevice. Caching and replicating frequently used data objects or files in user's local buffers are popular mechanisms to effectively reduce the communication bandwidth requirement and thus improve the overall system performance. However, the frequent disconnections of users make data consistency a difficult task in wireless mobile and P2P networks. In this dissertation, we design and analyze a Scalable Asynchronous Cache Consistency Scheme (SACCS) for single cell wireless cellular networks. SACCS is a highly scalable, efficient, and …

Biomechanical Properties Of Anterior Vaginal Wall Tissue In Post-Menopausal Women, Aradhana Bhatt

Bioengineering Theses - Archive

Cystocele repair in post-menopausal women suffering from urinary incontinence and associated vaginal prolapse is a common method of palliation. In this method, there is surgical reduction of vaginal tissue and the weak cross-sections are often supported with a synthetic sling fashioned from polymer mesh material. Some sling-supported and unsupported repairs fail over the years. The reasons for these failures are unclear, due in part to a lack of fundamental knowledge of the mechanisms associated with cystocele and vaginal prolapse. The aim of this study was to understand the mechanisms of tissue failure by biomechanical and ultrastructural studies. We take advantage …

The Introduction Of The Reserve Clause And Its Impact On Baseball Salaries During The 1880s: A Panel Estimation, Jennifer Ashcraft

Economics Theses - Archive

One of the most frequently studied areas in professional baseball is the Reserve Clause. Originally introduced in 1879 by the National League, the Reserve Clause indefinitely tied a player's services to his current team and was implemented in an attempt to prevent baseball salaries from increasing and reduce team expenses. However, it was also used to control player mobility as well. While the majority of economic research on the Reserve Clause focuses on the post-Reserve Clause era, this paper analyzes the Reserve Clause during its infancy in the 1880s, a period when professional baseball was just beginning, and its impact …

Polymer Tube Embedded In-Plane Micropump: Design, Analysis And Fabrication, Ashutosh Kole

Mechanical and Aerospace Engineering Theses - Archive

This thesis presents the design, analysis, and fabrication of a novel polymer tube embedded in-plane micropump. The key component of the proposed micropump is a Parylene polymer tube that is embedded into the trench of a silicon die. Advantages of embedding a Parylene polymer tube are biocompatibility and leakage free environments. The issue of leakage of fluid presented in [1] is eliminated by inserting the polymer tube. The tube itself acts as a diaphragm, which transfers the force and motion of thermal actuators to fluid. The structural analysis and the fabrication of the Parylene tube along with the coupled-field multiphysics …

Mfa Thesis Exhibition, Damir Verona Porobic

Graduate Theses, Dissertations, and Problem Reports (ETD)

How do I see, how do I interpret what I am seeing, what is seeing? How do I perceive the space and objects that surround me, how do I understand space? What is an image and what do I see in it? Is my vision like an image? How do I see what an image sees, how do I relate to an image in my space and how does it perceive me? How does an image signify? What are different representations in an image, of an image? What is seeing, what is vision, what is the visual experience?;The thesis exhibition …

Multinational Strategies As Options Creation And Exercise: An Analysis Of Country, Industry, And Firm Specific Characteristics, Nattharika Rittippant

Management Dissertations - Archive

This study investigates international expansion strategies using a real options framework. Decisions to enter foreign markets and their subsequent decision to increase, delay or abandon their commitments are both predicted and evaluated from an options perspective. More specifically, this study attempts to answer the following two questions: (i) How do macro-environmental, industry and firm specific factors impact the real option process of a multinational enterprise (MNE)? (ii) How does the market react to the different option choices? The real options process from the creation of an option to its subsequent exercise was examined along with market reactions following the announcements …

Analysis And Modeling Of A Micro Variable Capacitance Electromechanical Energy Converter, Amita Jindal

Electrical Engineering Theses - Archive

Research and development in microelectromechanical systems (MEMS) have made remarkable progress since 1988. Micro-machines are an integral part of MEMS. However, these machines are not often discussed in most electric machines, power electronics and drive forums due to the relative newness of these machines. This thesis provides an in-depth analysis of a variable capacitance micro-machine (VCM). It gives an insight into the effects of machine geometry, on capacitance and torque profiles of the machine. Tangential and radial components of the electrostatic forces in the air gap of the machine have been investigated to study the effects of mutual flux. These …

Nonlinear Finite Element Model Analysis Of Human Accommodation Lens, Tri Le

Civil Engineering Theses - Archive

The crystalline human lens is modeled by using the finite element software, ABAQUS/CAE Version 6.5-1 as an axisymmetric shell to study the optical power and displacement of anterior and posterior poles induced due to zonule traction. Several different element types were tested to obtain the optimum mesh. These elements were three and six-noded triangular hybrid and four-noded quadrilateral hybrid for modeling of the cortex and nucleus. Constant strain triangular and regular quadrilateral elements were examined for modeling the capsule. One dimensional two degree of freedom spring elements were used to model the anterior, posterior, and equatorial zonules. Five different lens …

A Whole New Ballgame: How Fantasy Sports Has Evolved In The Mass Media, Danny Woodward

Communication Theses - Archive

Fantasy sports, a game that allows players to run their own virtual sports franchise, has been considered a hobby enjoyed outside the cultural mainstream. But recent adoption of fantasy sports-related content in the mass media has increasingly made fantasy sports widely accepted. This exploratory study, uses an inductive, qualitative approach, to examine how fantasy sports has evolved in the mass media in seven categories: awareness, interest, testing, adoption, use, benefits, and future projections. Fantasy sports is shown to be more prevalent in the mass media now than ever before, and different media use fantasy sports in different ways but always …

Cathodic Electrodeposition Of Cadmium Oxide, Zinc Oxide And Mixed Cadmium Oxide-Zinc Oxide Thin Films, Ashwin Seshadri

Material Science and Engineering Theses - Archive

Cadmium oxide (CdO) and (CdO)x(ZnO)1-x mixed semiconductor films were cathodically electrodeposited for the first time on F-doped SnO2 substrates. The CdO thin films were deposited from an aqueous 0.1 M KCl medium containing dissolved Cd2+ species and O2. The (CdO)x(ZnO)1-x mixed oxide films were deposited from a bath which contained Zn2+ in addition to the CdO bath constituents. Films were potentiostatically deposited at 80 0C followed by a post-deposition thermal anneal at 450 0C. The mechanism of the electrodeposition was explored using cyclic voltammetry. These samples were then analyzed by X-ray diffraction, scanning electron microscopy, and UV-visible reflectance spectrophotometry. The …

Geologic And Geomorphic Controls Of Alluvial Island Location In Cheat River, West Virginia, Mitzy L. Schaney

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cheat River of north central West Virginia and southwestern Pennsylvania is a stable moderately sinuous mountain river with numerous anabranching reaches that include 81 alluvial islands. Relatively stable features, Cheat River alluvial islands are characterized by woody vegetation or human habitation, an elevation equal to or greater than the surrounding floodplain, and a perennially exposed emergent surface surrounded by active channels. Valley geometry, lithology, and tributary input are the main geologic and geomorphic controls selected to assess island location in Cheat River. Islands are more numerous in wide valleys with extensive floodplains; these valleys occur in lithologic segments dominated by …

Microencapsulating Properties Of Trehalose And Of Its Blends With Sucrose And Fructose, Marina Cerdeira, Silvana Martini, Maria L. Herrera

Nutrition, Dietetics, and Food Sciences Faculty Publications

A low melting fraction of milk fat (LMF), with a dropping point (MDP) of 16.7 °C, was encapsulated by freeze-drying emulsions formulated with trehalose or its blends with 30 wt% lactose or sucrose as hydrophilic phase, and with a mixed of 50 wt% of the palmitic sucrose esters (SE) β-170 and β-1670 as emulsifiers. Trehalose or trehalose/sucrose matrices were very efficient to encapsulate LMF (retention values were 82.8%± 3.2% and 90.5%± 3.7%, dry basis, respectively), whereas trehalose/lactose showed a significant decline in initial retention (42.5%± 2.5%, dry basis). The role of emulsion stability, water content, physical state of the matrix, …

Hedgerow Management Plan, Richard K. Sutton

Landscape Architecture Program: Faculty Scholarly and Creative Activity

This document and accompanying files describe the existing Osage-orange (Maclura pomifera) hedgerow at Homestead National Monument of America near Beatrice, Nebraska. Analysis of the living pioneer artifact found most trees in good to very good condition and sprouts near 75-80 years of age. A management plan and directs the propagation and prunning of the hedge for interpretation and natural resource value.

Detection Of Trypanosomes In Small Ruminants And Pigs In Western Kenya: Important Reservoirs In The Epidemiology Of Sleeping Sickness?, Musa O. Ng'ayo, Zablon K. Njiru, Eucharia U. Kenya, Geoffrey M. Muluvi, Ellie O. Osir, Daniel K. Masiga

All Peer-Reviewed Publications

Background: Trypanosomosis is a major impediment to livestock farming in sub-Saharan Africa and limits the full potential of agricultural development in the 36 countries where it is endemic. In man, sleeping sickness is fatal if untreated and causes severe morbidity. This study was undertaken in western Kenya, an area that is endemic for both human and livestock trypanosomosis. While trypanosomosis in livestock is present at high levels of endemicity, sleeping sickness occurs at low levels over long periods, interspersed with epidemics, underscoring the complexity of the disease epidemiology. In this study, we sought to investigate the prevalence of trypanosomes in …

Edmunds County, Sd Air Photos (1939 + Field Notes), Plant Science Department

South Dakota Counties Aerial Photos Collection

Pedology CD 05-11
This file contains 147 images from 1939 for Edmunds County, SD.

The photos are from Edmunds (1939 + Field Notes) County, SD. No index map was prepared for the photos. The original photo scale was 1:20,000 or 3.2 inches = 1 mile. The inventory of images does not represent coverage of the entire county. The images contained in this file represent part of the air photo collection for Edmunds County, SD that the South Dakota State University (SDSU) Pedology Project had on July 2005.
The structure of the files on the CD is as follows:

1. There is …

Mcpherson County, Sd Air Photos (1939 Part B), Plant Science Department

South Dakota Counties Aerial Photos Collection

Pedology CD 05-16
This CD contains 99 images from 1939 for McPherson County, SD.

The photos are from McPherson (1939 – Part B) County, SD. No index map was prepared for the photos. The original photo scale was 1:20,000 or 3.2 inches = 1 mile. The inventory of images does not represent coverage of the entire county. The images contained in this file represent part of the air photo collection for McPherson County, SD that the South Dakota State University (SDSU) Pedology Project had on July 2005.
The structure of the files is as follows:

1. There is a file folder …

Mcpherson County, Sd Air Photos (1939 Part A), Plant Science Department

South Dakota Counties Aerial Photos Collection

Pedology CD 05-15
This file contains 202 images from 1939 for McPherson County, SD.

The photos are from McPherson (1939 -Part A) County, SD. No index map was prepared for the photos. The original photo scale was 1:20,000 or 3.2 inches = 1 mile. The inventory of images does not represent coverage of the entire county. The images contained in this file represent part of the air photo collection for McPherson County, SD that the South Dakota State University (SDSU) Pedology Project had on July 2005.
The structure of the files on the CD is as follows:

1. There is a …

Salinity Tolerance Of Eight Ornamental Herbaceous Perennials, Nickolee Zollinger, Teresa Cerny-Koenig, Roger Kjelgren, Rich Koenig, Kelly L. Kopp

Plants, Soils, and Climate Faculty Publications

No abstract provided.

Drought Responses Of Ornamental Herbaceous Perennials, Nickolee Zollinger, Roger Kjelgren, Teresa Cerny-Koenig, Rich Koenig, Kelly L. Kopp

Plants, Soils, and Climate Faculty Publications

No abstract provided.