Digital Commons Network^™

The Willingness Of Technology Teachers To Support The Standards Of Learning (Sol) Objectives, James W. Lambert

OTS Master's Level Projects & Papers

To answer this problem the following goals were developed: 1. Determine whether technology teachers were willing to establish a goal of improving SOL competency scores both locally and regionally? 2. Determine if teachers stress the competencies identified in the Technology Education Course Competencies Related to Academic Standards of Learning publication in support of the program objectives at their schools? 3. Make recommendations on how teachers can better support the teaching of academic SOL through technology education

Technically Competent Employees For The New Millenium: Recommendations By American Think Tanks, Carolyn L. Tebault

OTS Master's Level Projects & Papers

To solve this problem, the following research goals will be answered: 1. What methods do American think tank companies use to keep their technical employees up-to-date on computer-related technologies? 2. Which recommendations are the most common ones cited by American think tanks?

Determining Correlation Between Mathematics Proficiency And U.S. Navy System Administrator Training Success, Daniel Majkut

OTS Master's Level Projects & Papers

To effectively determine if there is a relationship between mathematics skills and computer system administration and LAN management training success the following hypotheses were tested: 1. For each of the 20 junior IT University sailors/students, there is no relationship between the results of the mathematics portion of the ASVAB and the student's performance in the IT University computer related technical courses; 2. For each of the 20 junior IT University sailors/students, there is now relationship between TCC's Math 121 (College Algebra) course results and the student's performance in the IT University computer related technical courses.

An Analysis Of Remedial Reading Preparation For Beginning Information Systems Students At Eastern Shore Community College, Cynthia Hodges

OTS Master's Level Projects & Papers

The hypotheses under investigation during the course of this study were as follows: 1. Students who complete the developmental reading course (ENG 04, Reading Improvement) at ESCC earn grades in the introductory computer course (IST 114, Fundamentals of Computer Information Systems) comparable to those students who did not need remediation. 2. The developmental reading course prepares the remedial reading students to comprehend the technical material required to complete the introductory computer course at a level comparable to those students who did not need remediation.

A Study To Determine The Effect Of Web-Based Information On Improving The Knowledge Of Automotive Students At Danville Community College, William J. Roche Jr.

OTS Master's Level Projects & Papers

The following hypothesis will guide this study: 1. Danville Community College automotive students who used the internet as part of instruction in 1999 will achieve better test and exam scores which will lead to higher final grades in electrical and computerized fuel control classes than students in the same classes in 1998 who were not taught internet search skills.

A Study To Determine The Effectiveness Of Automated Electronic Classrooms In The United States Navy, David W. Lorenz

OTS Master's Level Projects & Papers

Based on the problem statement, the research hypothesis for this study was as follows: 1. There was no difference in academic achievement for Operation Specialist's taught in an Automated Electronic Classroom as compared to Operation Specialist's taught in a traditional classroom.

A Study To Determine If Participating In Technology Education Classes Improved The Mechanical Aptitude Of Students, Amos C. Peterson

OTS Master's Level Projects & Papers

The following hypothesis was set forth to guide this study: 1. Students taking technology education classes at Northside Middle School developed higher levels of mechanical aptitude when compared to students from the same school that took only the traditional general education classes.

Selection Of Curricular Topics Using Extensions Of Quality Function Deployment, Paul Kauffmann, Abel Fernandez, Charles Keating, Derya Jacobs, Resit Unal

Engineering Management & Systems Engineering Faculty Publications

Decision science can be an effective tool for enhancing organizational participation during strategic and complex decision making. This involvement develops a group consensus for relating organizational goals and the methods to achieve them. This paper describes an application of Quality Function Deployment (QFD) to define curricular topics that meet program objectives. Based on the ability of QFD to establish relationships, the model identifies the most important topics and quantifies their impact on meeting program goals. The model was developed to support restructuring of a Masters of Engineering Management degree program. The model supported decisions in selecting and prioritizing the required …

Approximation Model Building For Reliability & Maintainability Characteristics Of Reusable Launch Vehicles, Resit Unal, W. Douglas Morris, Nancy H. White, Roger A. Lepsch, Richard W. Brown

Engineering Management & Systems Engineering Faculty Publications

This paper describes the development of parametric models for estimating operational reliability and maintainability characteristics for reusable launch vehicle concepts, based on vehicle size and technology support level. A reliability and maintainability analysis tool (RMAT) and response surface methods are utilized to build parametric approximation models for rapidly estimating operational reliability and maintainability characteristics such as mission completion reliability. These models that approximate RMAT, can then be utilized for fast analysis of operational requirements, for lifecycle cost estimating and for multidisciplinary design optimization.

Adaptive Object-Oriented Filtering Framework For Event Management Applications, Ehab Al-Shaer, Mohamed Fayad, Hussein Abdel-Wahab, Kurt Maly

Computer Science Faculty Publications

Event filtering is an essential element in event management applications. In event management environments, the filtering mechanisms are employed to track the events generated from applications at run-time and perform the corresponding appropriate actions. Several key applications domains, such as system and network management, distributed system toolkits, communication protocols and active databases, utilize event filtering for various management purposes. The goal of this paper is to describe the object-oriented design and implementation of an adaptive event filtering framework which can be integrated and reused efficiently to develop event management applications for various domain environments. In our approach, the event filtering …

Textured Mos 2 Thin Films Obtained On Tungsten: Electrical Properties Of The W/Mos 2 Contact, E. Gourmelon, J. C. Bernède, J. Pouzet, S. Marsillac

Electrical & Computer Engineering Faculty Publications

Textured films of molybdenum disulfide have been obtained by solid state reaction between the constituents in thin films form when a (200) oriented tungsten sheet is used as substrate. The crystallites have their c axis perpendicular to the plane of the substrate. The annealing conditions are T=1073K and t=30 min. The films are stoichoimetric and p type. Such highly textured films are achieved without foreign atom addition (Ni, Co...). It appears, as shown by x-ray photoelectron spectroscopy, that a thin WS₂ layer is present at the interface W/MoS₂. The crystallization process is discussed by a …

A Simplified Model Of Wound Healing - Ii: The Critical Size Defect In Two Dimensions, J. S. Arnold, John A. Adam

Mathematics & Statistics Faculty Publications

Recently, a one-dimensional model was developed which gives a reasonable explanation for the existence of a Critical Size Defect (CSD) in certain animals [1]. In this paper, we examine the more realistic two-dimensional model of a circular wound of uniform depth to see what modifications are to be found, as compared with the one-dimensional model, in studying the CSD phenomenon. It transpires that the range of CSD sizes for a reasonable estimate of parameter values is 1 mm-1 cm. More realistic estimates await the appropriate experimental data.

Cartilage Regeneration On A Large Articular Surface Facilitated By Stress Shielding, Charles L. Mcdowell, Jennifer S. Wayne, Robert Tuten, Hunter H. Mcguire Jr.

Virginia Journal of Science

An animal model for the study of articular cartilage regeneration in-vivo facilitated by stress-shielding is introduced. The object of the model is to test the hypothesis that some form of cartilaginous tissue will grow upon a large joint surface in vivo with the joint in normal motion. The model utilizes the known capability of immature cells to differentiate. The source of cells is bleeding subchondral bone. In addition, the model provides a mechanically shielded environment in which cell differentiation and maturation can occur. The study showed that a substantial amount of tissue will grow in the animal model only when …

Humic Substances As Interferences In The Analysis Of Nitrite In Water, Stephanie Ann Tebault

Chemistry & Biochemistry Theses & Dissertations

Humic substances are of current interest because of their roles in environmental processes involving pollutants. It is also becoming recognized that humic substances may interfere in analysis of environmental samples though the possible adverse effects do not appear to be fully appreciated. The present effort focuses on determining whether humic materials interfere in the analysis of nitrite in water using the Griess reaction. This is a well-known reaction using nitrosation to gjve a diazonium salt followed by coupling with an appropriate reagent to form a dye. This colorimetric method continues to be applied in the laboratory and the field for …

A Pressure Transducer Using Field Emitter Arrays, Mark David Richmond

Electrical & Computer Engineering Theses & Dissertations

A new pressure sensing device using field emission from diamond coated silicon tips has been developed. A high electric field applied between a nano-tip array and a diaphragm configured as electrodes produces electron emission governed by the Fowler - Nordheim equation. The electron emission is very sensitive to the separation between the diaphragm and the tips, which is fixed at an initial spacing and bonded such that a cavity is created between them. Pressure applied to the diaphragm decreases the spacing between the electrodes, thereby increasing the number of electrons emitted.

Silicon has been used as a substrate on which …

A Generic Object-Oriented Random Variate Model For Discrete Event Simulations Separating The Data Model From The Process Model, Palathingal Frank

Computational Modeling & Simulation Engineering Theses & Dissertations

Data is the lifeline of any simulation model. The validity of the data is a primary determining factor on the accuracy of a simulation. Hence the data model is an important part of any simulation model. But this is, in most occasions, the most neglected part of any model. Most people view the model correctness in te1ms of the process model functionality rather than the data that is being used in the simulation. As simulation gets more accepted as a reliable problem-solving tool, it is increasingly important to pay careful attention to the accuracy of the simulation and that can …

All That Becomes A Man, Eugene M. Mcavoy

English Theses & Dissertations

In each life, the past inevitably impinges upon the present, at once helping to form and threatening to destroy the fragile structure of the psyche called identity. With a multitude of influences, the past functions to alter ephemeral perceptions of the self and to shape an identity that is often incompatible with and abhorrent to who we think we are. This collection of five short stories examines the processes of reconciling the past with the present and of discovering the resulting social, sexual and spiritual identities.

Yet, more importantly, the stories also explore people in their present moments, aching to …

Suppression Of Post-Buckling Deflection And Panel-Flutter Using Shape Memory Alloy, Mohammad Tawfik Abo El So-Oud

Mechanical & Aerospace Engineering Theses & Dissertations

A novel concept proposed is the use of Shape Memory Alloy (SMA) to reduce the panel thermal deflection and flutter responses. SMA has unique ability to recover large prestrains completely when the alloy is heated (by aerodynamic heating in the present case) above the austenite start temperature A_s. During the recovery process, a large tensile recovery stress occurs if the SMA is restrained.

In this thesis, a panel subject to the combined aerodynamic and thermal loading is investigated. A nonlinear finite element model based on von Karman strain displacement relation is utilized to study the effectiveness of SMA …

Beyond This Point There Be Dragons, Temple D. West

English Theses & Dissertations

Through profiles of six contemporary female authors that focus on their creative lives, as well as my personal journey toward rediscovering my creative voice, this nonfiction work explores the myths and legacies surrounding female creativity, especially as it relates to women writers today. It is an anatomy of stories about women who dare enter that territory of dragons beyond the known world, the territory where treasure is found.

Long-Term Aircraft Structural Integrity Prediction Under The Influence Of Feedback Control, Si-Bok Yu

Mechanical & Aerospace Engineering Theses & Dissertations

This thesis investigates the influence of feedback control, and other factors associated with loading characteristics, on fatigue damage reduction and long-term integrity of aircraft structural components. An actively controlled flexible aircraft model and a new state space modeling procedure for crack growth are utilized to uncover important factors which influence airframe crack growth. A matrix of simulation test cases is constructed to cover such variables as open-loop operation, nominal closed-loop operation, perturbed closed-loop operation (i.e., feedback gain variation), nominal maneuver profile, perturbed maneuver profile (including overload strength and frequency), atmospheric gust, and mean stress level. Simulation output data including crack …

Evaluation Of The Transport Properties Of Gasb For Bipolar Applications Through Monte Carlo Simulations, Damayanthi Palaniappan

Electrical & Computer Engineering Theses & Dissertations

GaAs is currently the semiconductor material of choice for high speed, low power applications. Its electronic transport properties are superior to almost all other semiconductors. It is also used in a variety of bipolar applications such as photodetectors and photo-mixers. However, as is well known, the hole mobility and related transport parameters of GaAs are not very good. This is a serious drawback, and poses a potential problem for all applications involving bipolar conductivity. In order to increase the high :frequency limits and high-speed capability of bipolar devices, the choice of an alternative material, therefore, becomes necessary. An important first …

Buying For The Cold War: Influences On Air Force Procurement, 1945-1956, William Cline

History Theses & Dissertations

Military planning and buying changed dramatically after World War II as more attention and resources were applied toward the development of a strategy that made air power the center of strategic thinking. Nevertheless, when by 1947, aircraft production dropped so low as to threaten the viability of the aircraft industry, President Truman formed the President's Air Policy Commission, which spawned a cooperative effort between government and industry.

The relationship between government officials, particularly in the military, and industry executives became so close in the next decade that the health of the aircraft industry became linked with that of the military. …

An Improved Thermal Mass Flow Controller For Hazardous And Precision Applications, William J. Alvesteffer

Mechanical & Aerospace Engineering Theses & Dissertations

A new mass flow controller has been designed which responds very rapidly to changes in control settings. The design was evolved after carefully studying the internal flow and the sources for thermal lag and other non-linear behavior. After discussing an overview of the basic mass flow controller operating principles, data will be presented which characterize the basic building blocks of an advanced flow sensor design. Subsequently, a flow model and control strategy have been developed and tested which reduce response lag significantly. Results of the new design, obtained experimentally under various transient conditions, will be discussed.

A Simplified Model Of Wound Healing (With Particular Reference To The Critical Size Defect), J. A. Adam

Mathematics & Statistics Faculty Publications

This paper is an attempt to construct a simple mathematical model of wound healing/tissue regeneration which reproduces some of the known qualitative features of those phenomena. It does not address the time development of the wound in any way, but does examine conditions (e.g., wound size) under which such healing may occur. Two related one-dimensional models are examined here. The first, and simpler of the two corresponds to a "swath" of tissue (or more realistically in this case, bone) removed from an infinite plane of tissue in which only a thin band of tissue at the wound edges takes part …

Virginia Academy Of Science 1999 Best Student Paper Awards

Virginia Journal of Science

List of award winning student papers by section from the Virginia Academy of Science, 1999

Abstracts Of Papers, 77th Annual Meeting Of The Virginia Academy Of Science, May 26-28, 1999, Old Dominion University, Norfolk, Virginia

Virginia Journal of Science

This document is a list of abstracts presented at the 77th annual meeting of the Virginia Academy of Science, between May 26 and May 28th, 1999, at Old Dominion University.

Large Amplitude Pitching Of Supermaneuver Delta Wings Including Flow Control, Yahia A. Abdelhamid

Mechanical & Aerospace Engineering Theses & Dissertations

The unsteady, three-dimensional Navier-Stokes equations are solved to simulate and study the aerodynamic response of a delta wing undergoing large amplitude pitching motion up to 90° angle of attack. The primary model under consideration consists of a 76° swept, sharp-edged delta wing of zero thickness, initially at zero angle of attack. The freestream Mach number and Reynolds number are 0.3 and 0.45 × 106, respectively. The governing equations are solved time-accurately using the implicit, upwind, Roe flux-difference splitting, finite-volume scheme. Both laminar and turbulent flow solutions are investigated. In the laminar flow solutions, validation of the computational results is carried …

Virginia Junior Academy Of Science Awards, 1999 Annual Meeting

Virginia Journal of Science

List of award winning student papers by section from the 1999 Annual Meeting of the Virginia Junior Academy of Science

Exploring Participation Processes For Technology Development: Case Studies Of Biotechnology Research And Development Projects In Thailand, Omjai Yuktavetya

Engineering Management & Systems Engineering Theses & Dissertations

There is increased awareness in the organizational and management literature that participation can make contributions in technology development. One of the problems in developing biotechnology in Thailand is that only a small portion of publicly funded research and development projects directly result in commercial success. Among the reasons cited (TDRI 1992a) is a lack of collaboration between various stakeholders; therefore, an effective technology policy to support their participation is needed. This research explores current participation processes in biotechnology research and development projects in Thailand in which there were different perspectives among various stakeholders. The quantitative and qualitative methodologies developed here …

Dynamic And Interactive 3d Simulation Over The World Wide Web, Rajesh Vennam

Electrical & Computer Engineering Theses & Dissertations

The thesis presents the development of a new and novel three-dimensional simulation tool over the WWW using Virtual Reality Modeling Language (VRML). VRML is a 3D analog to HTML and serves as a simple, multiplatform language for publishing 3D Web pages. In general, most people use VRML for developing three-dimensional models or worlds that provide little or no interaction for the users. This tool combines interaction and dynamic object creation. A thorough study of VRML is done to explore the features of VRML that could be combined to develop methodologies for creation of dynamic and interactive 3D objects over the …