Digital Commons Network^™

A Generic Object-Oriented Tabu Search Framework, Hoong Chuin Lau, Xiaomin Jia, Wee Chong Wan

Research Collection School Of Computing and Information Systems

Presently, most tabu search designers devise their applications without considering the potential of design and code reuse, which consequently prolong the development of subsequent applications. In this paper, we propose a software solution known as Tabu Search Framework (TSF), which is a generic C++ software framework for tabu search implementation. The framework excels in code recycling through the use of a well- designed set of generic abstract classes that clearly define their collaborative roles in the algorithm. Additionally, the framework incorporates a centralized process and control mechanism that enhances the search with intelligence. This results in a generic framework that …

Distributed Simulation Modeling For Manufacturing Systems Design Using Xml, Rawinkhan Srinon, Sreeram Ramakrishnan

Engineering Management and Systems Engineering Faculty Research & Creative Works

Discrete event simulations have been used to model manufacturing systems. Various decomposition methods such as distributed simulations have been employed for this modeling. in the context of distributed simulations, each federate must be able to share the embedded logic with the other federates, irrespective of the software used to design and build such systems. This paper provides an extensible Markup Language (XML)-Based representation for distributed models that can be shared across the federation of simulations. Specifically, the paper outlines three different model components that forms the basis of a design framework for distributed simulation models - object model (for simulation …

Modeling Of Capacitor Impedance In Switching Converters, Jonathan W. Kimball, Philip T. Krein, Kevin R. Cahill

Electrical and Computer Engineering Faculty Research & Creative Works

Switched capacitor (SC) converters are gaining acceptance as alternatives to traditional, inductor-based switching power converters. Proper design of SC converters requires an understanding of all loss sources and their impacts on circuit operation. In the present work, an equivalent resistance method is developed for analysis, and equivalent resistance formulae are presented for various modes of operation. Quasiresonant converters are explored and compared to standard SC converters. Comparisons to inductor-based switching power converters are made. A number of capacitor technologies are evaluated and compared for applications to both SC converters and inductor-based converters. The resulting model can be used to accurately …

Reliability Measurement Of Mass Storage System For Onboard Instrumentation, Minsu Choi, Nohpill Park, Vincenzo Piuri, Fabrizio Lombardi

Electrical and Computer Engineering Faculty Research & Creative Works

Advances in spaceborne vehicular technology have made possible the long-life duration of the mission in harsh cosmic environments. Reliability and data integrity are the commonly emphasized requirements of spaceborne solid-state mass storage systems, because faults due to the harsh cosmic environments, such as extreme radiation, can be experienced throughout the mission. Acceptable dependability for these instruments has been achieved by using redundancy and repair. Reconfiguration (repair) of memory arrays using spare memory lines is the most common technique for reliability enhancement of memories with faults. Faulty cells in memory arrays are known to show spatial locality. This physical phenomenon is …

A Qualitative Modeling Method For Platform Design, Michael Van Wie, Robert B. Stone, Asli Sahin, Janis Terpenny, Fabrice Alizon, Steve Shooter, Timothy Simpson

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The development of a collection of related products sharing a common platform represents an important approach in modern product design. an ongoing problem is the application of design methods toward a limited set of evolving product data and archived design knowledge to search and explore alternative platform options. with the goal of maximizing the reuse of end item artifacts and supply chain elements, we propose a design modeling method using basic qualitative relationships among relevant performance, design, and noise parameters in the system of interest. by using qualitative models related to multiple levels of design data, the method provides a …

The Missouri Miner, December 1, 2005

The Missouri Miner Newspaper

No abstract provided.

An Industry Assessment: Are Aircraft Dispatchers In A Holding Pattern?, Georgiann Sailer

Theses and Dissertations

This industry assessment provided an in-depth view of the aircraft dispatcher industry. An assessment of the industry was needed to project the future of the aircraft dispatcher profession, as well as indicate the necessity of additional aircraft dispatcher training facilities in the United States. The position of an aircraft dispatcher originated in 1938 as a result of numerous aircraft accidents. It was believed that the repeated accidents occurred due to the lack of ground assistance to the pilot, therefore a new Airman Certificate was created, the aircraft dispatcher certificate. Some of the duties of an aircraft dispatcher include aircraft navigation, …

The Mixed-Form Fast Multipole Algorithm For Broadband Electromagnetic Simulations, L. (Lijun) J. Jiang, W. C. Chew

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

The General Variational Formulas For Capacitance Parameter Extraction, W. C. Chew, L. (Lijun) J. Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

To obtain second order accuracy using the first order data for the capacitance parameter extraction, a set of new generalized variational formulas are presented in this paper. They are complete since they are valid not only for self-capacitances, but also for mutual capacitances. A more general variational formula is derived to account for the asymmetrical elastance matrix case. By these novel formulas the computational accuracy can be significantly improved compared to the conventional direct capacitance extraction method. © 2005 IEEE.

Crosstalk Analysis By Fast Computational Algorithms, Z. G. Qian, J. Xiong, L. Sun, I. T. Chiang, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, we will present the use of low frequency fast algorithms for crosstalk analysis. Some criss-cross line structures are studied and time domain signals are demonstrated to ascertain crosstalk effect. ©2005 IEEE.

Solving Low Frequency Electromagnetic Problems With Fast Solvers, W. C. Chew, L. (Lijun) J. Jiang, Y. H. Chu, Y. A. Liu, M. K. Li, Z. G. Qian, J. Xiong, L. Sun

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

A Mixed-Form Fast Multipole Algorithm, Li (Lijun) Jun Jiang, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

The fast multipole algorithm manifests in two very different forms at low frequencies and at mid frequencies. Each can operate in their respective regimes, but are not tenable in the other regimes. The paper reports on a way to factorize the Green's function for fast algorithm using a mixed form. The low-frequency fast multipole algorithm (LF-FMA) will be used at low frequencies or the long-wavelength regime, and the multilevel fast multipole algorithm (MLFMA) will be used for the mid frequencies or the shorter-wavelength regime. For object modeling where both long-wavelength and wave physics are important, we propose a mixed-form fast …

Gamma-Ray Induced Photoconductivity In Pyrex, Quartz, And Vycor, Shoaib Usman, Lubna Shoaib, James N. Anno

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

Results of an experimental investigation are reported on photoconductive response of Pyrex, Quartz and Vycor. This research was conducted as a feasibility study for developing a new gamma dose measurement device based on the principle of photoconductivity. However, data collected in this study are equally valuable for various other applications where these materials are to be used in high radiation field. Our experiments and analyzes indicated that the selected dosimeter materials exhibit photoconductivity and respond to changes in gamma dose rate within a useful range. Pyrex glass suffered radiation damage at a relatively high dose rate of 0.25 Gys/sup -1/. …

Asian Indian Perceptions Of Normality: A Qualitative Study, Mohammed S. Lodhi Khan

Theses and Dissertations

Normal mental health has always been defined from a Euro-centric worldview that excludes non-Westem cultures. In fact, what is normal is biased against non-Westem cultural ideals that influenced the definition of mental health. The difference between Eastern and Western cultural values suggest that the two cultures may also have differing views on the definition of normal mental health. The most commonly accepted definition of normality currently in use in the West is based on the models of health, utopia, average, transactional systems, and pragmatism. However, people from non-European cultures, such as Asian Indians, may not be represented by these current …

University Of Northern Iowa Graduate Council Minutes, December 1, 2005, University Of Northern Iowa. Graduate Council.

Documents - Graduate Council

Meeting minutes from the Graduate Council of the University of Northern Iowa.

Cryptanalysis Of A Forward Secure Blind Signature Scheme With Provable Security, Shuhong Wang, Feng Bao, Robert H. Deng

Research Collection School Of Computing and Information Systems

A forward secure blind signature scheme was proposed by Duc, Cheon and Kim, in ICICS 2003. The security of the scheme was proved to be equivalent to the strong RSA assumption in the random oracle model. In this paper we present an attack to the scheme by forging valid signatures with public keys only. The attack is so efficient that forging a valid signature needs less computation than legally generating a signature, even considering only the user side. Our result implies that the security proof of the scheme must be invalid. Furthermore we point out the fault of the proof …

A Framework To Learn Bayesian Network From Changing, Multiple-Source Biomedical Data, Li G., Tze-Yun Leong

Research Collection School Of Computing and Information Systems

Structure learning in Bayesian network is a big issue. Many efforts have tried to solve this problem and quite a few algorithms have been proposed. However, when we attempt to apply the existing methods to microarray data, there are three main challenges: 1) there are many variables in the data set, 2) the sample size is small, and 3) microarray data are changing from experiment to experiment and new data are available quickly. To address these three problems, we assume that the major functions of a kind of cells do not change too much in different experiments, and propose a …

Are Specific Language Impairment And Dyslexia Distinct Disorders?, Hugh W. Catts, Suzanne M. Adlof, Tiffany Hogan, Susan Ellis Weismer

Faculty Publications

Purpose - The purpose of this study was to determine whether specific language impairment (SLI) and dyslexia are distinct developmental disorders.

Method - Study 1 investigated the overlap between SLI identified in kindergarten and dyslexia identified in 2nd, 4th, or 8th grades in a representative sample of 527 children. Study 2 examined phonological processing in a subsample of participants, including 21 children with dyslexia only, and 43 children with SLI only, 18 children with SLI and dyslexia, and 165 children with typical language/reading development. Measures of phonological awareness and nonword repetition were considered.

Results - Study 1 showed limited but …

Fishing For Adr, David Bryson, Nadja Alexander

Research Collection Yong Pung How School Of Law

As the mediation field in Australia and abroad flourishes, so too do publications on the topic. However a plethora of publications has consequences for any academic and professional field. On one hand it means that readers are indulged with a rich array of information, views and opinions; on the other it requires readers to be much more sophisticated and discriminatory in their choice of reading.

Ascending Into Ecstasy: Sex And Religion In Three Albee Plays, Carolyn M. Rodkey

All-Inclusive List of Electronic Theses and Dissertations

This study is an investigation of American playwright, Edward Albee, and how he uses the themes of sex and religion to develop the plots and characters in three of his major works. Foremost, this analysis is devoted to the exploration of Albee's 1964 drama, Tiny Alice; however, this work also contains two secondary studies of Three Tall Women and The Play about the Baby. "The Origins of the Themes" presents biographical information relevant to the study of sex and religion. Albee's religious skepticism and spiritual self-discoveryalong with his volatile relationship with his mother brought on, in part, by his homosexuality-are …

Solomon Huebner And The Development Of Life Insurance Sales Professionalism, 1905-1927, Drew Vandecreek

Faculty Articles, Papers, and Other Scholarship

In 1927 the National Association of Life Underwriters collaborated with Professor Solomon Huebner of the University of Pennsylvania to found the American College of Life Underwriters, an institution devoted to establishing and maintaining professional standards for the nation's life insurance salesmen. Their work sheds light on the new politics of expertise and associations that emerged in the 1920s. While many historians have portrayed the period's experts as purveyors of new, technical knowledge and apolitical agents of an inevitable modernity, Huebner in fact brought little real knowledge of insurance to his work. Instead, he introduced the industry's prevailing ideology of public …

Psychosocial Moderators In The Relation Between Cd4 Count And Physical Symptoms Among African American Women With Hiv, Cara F. O'Connell

Graduate Theses, Dissertations, and Problem Reports (ETD)

The current study examined the link between immune functioning (CD4 count) and physical symptoms, as well as the moderating role of optimism and depressive symptoms, in a sample of 99 low income, inner city African American women with HIV. Although there was no main effect of CD4 count on physical symptoms, depressive symptoms moderated the association between CD4 count and physical symptoms. More compromised immune functioning (lower CD4 count) was associated with more physical symptoms under conditions of higher levels of depressive symptoms, but not lower levels of depressive symptoms. This finding was observed using both a self-report measure and …

Perceptions Of Directors Of Special Education Related To Their Knowledge And Training, Francis J. Super

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigates the perceptions of the knowledge base that are held by directors of special education. The study focuses on one main research question: What is the knowledge base special education directors feel they need to know in the field of special education? Mixed methodology, constant comparative method as described by Maycut and Morehouse (1994) and Statistical Package for the Social Sciences, is used to analyze data from a survey and interviews. Survey data was collected from 45 current special education administrators along with in-depth interview data from 6 directors. The interviewees were chosen randomly using selective sampling based …

Towards Large Eddy Simulation Of Dispersed Gas -Liquid Two-Phase Turbulent Flows, Gusheng Hu

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study presents a detailed investigation of all essential components of computational and modeling issues necessary for a successful large-eddy simulation (LES) of dispersed two-phase turbulent flows. In particular, a two-layer concept is proposed to enable the LES capability in two-phase flows involving dispersed bubbles that are relatively large compared to the mesh size. The work comprises three major parts.;Part I focuses on the development and verification of a transient, three-dimensional, finite-volume-method (FVM) based accurate Navier-Stokes solver, named DREAM II (second generation of the DREAM code). Several high-order schemes are implemented for both the spatial and temporal discretization. Solution of …

Software Tools For Real-Time Simulation And Control, Raghu Sankarayogi

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this thesis is to design and simulate a multi-agent based energy management system for a shipboard power system in hard real-time environment. The automatic reconfiguration of shipboard power systems is essential to improve survivability. Multi-agent technology is used in designing the reconfigurable energy management system using a self-stabilizing maximum flow algorithm. The agent based energy management system is designed in a Matlab/Simulink environment. Reconfiguration is performed for several situations including start-up, loss of an agent, limited available power, and distribution to priority ranked loads. The number of steps taken to reach the global solution and the time …

Action Research Analysis Of The Forces Affecting Farmer Participation In A West Virginia Cooperative Extension Service Farmer Education Program, John Robert Edalgo

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study uses action research principles and Kurt Lewin's field theory to investigate the forces dictating farmer participation in the Decision Enabling Data Collection and Management System Initiative (DEDCMSI). These forces were classified in Chapter IV under the following project categories: Hardware, Software, Perception of DEDCMSI, Perception of Technology, and Sociocultural. This West Virginia University Cooperative Extension Service (WVUCES) initiative organized four farm finance groups located in the following counties: Ohio, Jefferson, Mineral, and Monroe. Data collection methods used to identify forces occurring within this seven-month pilot project is listed here as follows: structured, semi-structured, and un-structured interviews. A total …

Inbound Express Reservation & Management Systems, Kei Kagawa

Masters Theses & Doctoral Dissertations

This document describes my final project which I am completing at my employer, JTN. This project changes the company client website, Inbound Express, from a static one to a dynamic one supporting B to C with full function to meet the demands of the JTB Travel Network. This document describes the problem, the solution, the methodology and the technique including the current NYC travel industry business trends for 2005, a quick sketch of JTN, the demands of JTN, the network system, the business rules and the final product.

Applying Electronic Commerce To Property Management, Paul Weist

Masters Theses & Doctoral Dissertations

This project will step through the business analysis process involving the application of e-commerce usage in the management of real estate. Each step of the analysis process is examined to understand and prove that web based property management is a viable approach. First the current process of property management is evaluated. This normally involves an intermediary, the real estate agent. They assist the buyer and seller in the buy/sell transaction. This is of course done for a fee. Usually the fee is calculated based on the selling price. Requirements of both the buyer and seller are defined and analyzed as …

From “Separate But Equal,” To Tracking To “Choice”: Perceptions Of Different Stakeholders On The Impact Of Magnet Schools On High School Students, Minerva Medrano Villarreal

Theses and Dissertations - UTB/UTPA

The purpose of this research was to examine and compare the impact of magnet-vocational high schools on the perceptions of seniors from the magnet schools and on those from the comprehensive/host schools. Additionally, the study examined the perceptions that several stakeholders of those schools and of the services and opportunities presented to the students were also investigated. Finally, the perceptions or parents were also investigated.

The Mixed-Methods Design study used several instruments as the primary sources of self-reported data: school district course listing guides, annual progress reports, official district Web sites and literature about district magnet schools. The second component …

How Optional Usage Of The Web Affects Reading Comprehension, Jocelyn K. Tenorio

Theses and Dissertations - UTB/UTPA

The purpose of this investigation is to consider whether using web-enhanced material improves proportionally students' reading comprehension skills. In addition student attitudes are considered. Two groups of students at the University of Montemorelos, Nuevo Leon, Mexico were chosen as a census: a group of nursing students taking a course on reading comprehension of nursing articles in English and a group of students studying to be teachers of English as a foreign language. Reading selections were uploaded on the internet using the WebCT platform. The students were to read the selections and answer quizzes. The students took a pre- and post-test …