Engineering Commons^™

Design, Simulation And Fabrication Of A Mems In-Situ Contactless Sensor To Detect Plasma Induced Damage During Reactive Ion Etching, Subramanian Ganesh

Theses

The present trend in the semiconductor industry is towards submicron devices. An inevitable process technique in achieving this is by reactive ion etching of the polysilicon gate. During RIE, the gate oxide may get damaged due to several causes. One of the main causes of the damage is the non-uniformity of the plasma. It is reported that these plasma inconsistencies are mainly due to electrode design and that they create spatial plasma potential fluctuation. These fluctuations are reported to be in the range of 10-20 Volts. By providing an in-situ monitoring of the wafers, the reliability of the device could …

The Airline Quality Rating 1997, Brent Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 97-9

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating 1991 issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Quality Rating 1997, contains monthly Airline Quality Rating scores for 1996. Additional copies are available by contacting Wichita State University or University of Nebraska at Omaha. The Airline Quality Rating 1997 is …

Santa Clara Magazine, Volume 38 Number 4, Fall 1996, Santa Clara University

Santa Clara Magazine

4 - ENTER THE CLASS OF 2000 They're committed, they're ambitious, they're adventurous-and they're here! By Christine Courard '97 Photographs by Charles Barry

10 - A COMMUNITY OF SCHOLARS FOR THE COMMON GOOD Unique gifts of students, facu lty, staff, and alumni advance University efforts to integrate learning and living. By Paul Locatelli, S.J, '60

13 - HEADY DAYS, MYLANTA NIGHTS Riding the roller coaster of high tech investing. Coming out on top. By Therese Poletti '81

18 - THE TAO OF PERSONAL LEADERSHIP New book by English Department chair describes how ancient Chinese philosophy can help leaders bring a …

Prioritization Schemes Of The Air Force Logistics Reparable Pipeline, Brigham K. Briggs

Theses and Dissertations

This study describes the prioritization schemes utilized in the Air Force logistics reparable pipeline. The reparable pipeline is defined and illustrated with flowcharts. A literature review examines previous research conducted on the reparable pipeline, including analytic and conceptual pipeline models, and pipeline management studies. In addition, the topic of prioritization as defined in the production/operations management academic discipline is reviewed. Prioritization schemes of the reparable pipeline are reported in tabular format in addition to descriptions of the various prioritization schemes. Recommendations for pipeline improvement and further research form a basis from which pipeline operation may be improved. p9

An Evaluation Of U.S. Air Force Aviation Fuel Consumption Factors To Accurately Predict Aviation Fuel Costs By Aircraft Mission, Design, And Series, Jodi A. Clayton

Theses and Dissertations

The purpose of this thesis was to undertake a systematic, scientific study of the accuracy of Air Force published fuel factors to estimate fuel costs at MAJCOM level by mission, design, and series (MDS) since the implementation of the Fuels Automated Management System (FAMS) under the current environment of decentralized aviation fuel (AVFUEL) funding. The research found that, at MAJCOM level, the use of USAF published AVFUEL factors in estimating out-year costs would have overstated costs in both fiscal year (FY) 1994 and FY 1995 by $2.5 M (FY 1994), by $.25 M (FY 1995), and may potentially understate costs …

Integration Of The Distribution And Repair In Variable Environments (Drive) Model Into Micap Policy, Bradley E. Anderson

Theses and Dissertations

The United States Air Force has implemented the Distribution and Repair In Variable Environments (DRIVE) Model to a limited degree for a limited range of items, and policy makers seem unsure as to the proper level of DRIVE utilization. New asset release sequences and policies have been proposed without evidence to support those decisions. The purpose of this study is to explore different levels of DRIVE implementation relating to proposed asset release policies in order to provide some evidence on which policy could best support Air Force weapon systems. A second purpose of this study is to show how the …

Crisis Airlift Management: Effective Scheduling, David C. Penny

Theses and Dissertations

This is a report on the basis, data, findings, and models developed for US Transportation Command and Headquarters Air Mobility Command. Focusing on the dynamic scheduling problem that arises during management of airlift assets into space-constrained airfields during a crisis, this research explains the conditions surrounding this event, discusses several areas of potential cross-functional applications, presents analysis of current performance, and provides several modeling possibilities for schedule efficiency. Past research in the Flow Management Problem (an airline flow control issue) is extensive, but specific applications in crisis airlift are long in coming, primarily due to the complexity of the environment. …

An Analysis Of Air Mobility Express Requirements Operating Within A Lean Logistics Wartime Environment, Jennifer A. Bollinger, Kellie L. Davila-Martinez

Theses and Dissertations

Lean Logistics was developed in response to budget cuts, force reductions, and a new political world order. The primary objective of Lean Logistics is to minimize the total system wide costs of the Air Force organization. Currently, the Air Force is seeking to cut costs by reducing inventories, improving repair processes, and employing faster transportation where possible. The purpose of this thesis is to determine if the Air Mobility Express (AMX) current sizing plan is capable of supporting the retrograde assets generated during the sustainment portion of a war. The Dyna-METRIC version 6.4 simulation program is employed to analyze the …

Santa Clara Magazine, Volume 38 Number 3, Summer 1996, Santa Clara University

Santa Clara Magazine

6 - THE BEATEN TRACK SCU Psychologist Stephanie Etukudo and Senior Lecturer in English Jeffrey Zorn debate whether ability groupings serve students' best interests.

12 - WHAT WOULD SOLOMON SAY? Adoptions gone awry trigger controversy over how to safeguard the rights of parents while protecting the welfare of the child. By Elizabeth Fernandez '79

18 - A THIRST FOR HEALING A pilgrim to Lourdes finds that the cures offered by the blessed waters can be mostly invisible. By Dee Danna '68 (MBA '72)

24 - THE FLOWERING OF SANTA CLARA UNIVERSITY For more than a century, the Mission Gardens have …

The Noaa Corps -- A Participant Action Research Of A Uniformed Service Facing Termination, Richard Eugene Marriner Ii

Engineering Management & Systems Engineering Theses & Dissertations

The NOAA Corps is a uniformed service of the Federal Government. It is composed of officers commissioned by the President of the United States as are the officers of the Air Force, Army, Coast Guard, Marines, Navy, and Public Health Service. "NOAA" is the acronym for the National Oceanic and Atmospheric Administration, an agency within the U.S. Department of Commerce.

On January 24, 1996 the Clinton administration formally proposed that the NOAA Corps be terminated on October 1, 1996. If this were to become reality it would be the first time in U.S. History that a uniformed service has been …

Top Gear Manufacturing, B Mahadevan

IIMB Management Review

No abstract provided.

Anion Induced Blue To Purple Transition In Bacteriorhodopsin, Mrunalini Pattarkine, Anil K. Singh

Faculty Works

Purple membrane (PM, λ" role="presentation">λmax" role="presentation">max 570 nm) of H. halobium on treatment with sulphuric acid changes its colour to blue (λ" role="presentation">λmax" role="presentation">max 608 nm). The purple chromophore can be regenerated from the blue chromophore by exogeneous addition of anions such as CI−" role="presentation">− and HPO42−" role="presentation">2−4. Chloride ion is found to be more effective than the dibasic phosphate ion in regenerating the purple chromophore. Nevertheless, one thing common to the anion regeneration is that both CI−" role="presentation">− and HPO42−" role="presentation">2−4 show marked pH effect. At pH 1.0 the efficiency of …

Cost Competitiveness Of Airlines: An International Comparison, Tae Oum, Chunyan Yu

Publications

Significant structural, institutional and regulatory changes have occurred in the airline industry since the mid-1980s. These changes have intensified competition in both domestic and international air transport market. As the market becomes more competitive, the ultimate ability of a carrier to survive and prosper depends greatly on its cost competitiveness. This paper measures and compares the unit cost competitiveness of the world's major airlines, using the yearly panel data of 23 major airlines over the 1986-93 period. We focus our analysis on identifying the potential factors which influence the observed unit cost differentials among airlines, including input prices, productivity, network …

The Airline Quality Rating 1996, Brent D. Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 96-4

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Quality Rating 1996, contains monthly Airline Quality Rating scores for 1995. Additional copies are available by contacting Wichita State University or the University of Nebraska at Omaha.

The Airline Quality Rating 1996, contains …

Santa Clara Magazine, Volume 38 Number 2, Spring 1996, Santa Clara University

Santa Clara Magazine

10 - IT CHANGED MY LIFE Reflecting on 30 years of the Santa Clara Communiry Action Program, former SCCAP directors recount what participating in the organization meant to them.

14 - ATTICUS An excerpt from the recent novel by SCU's new Gerard Manley Hopkins, S.)., Professor in Arts and Humanities. By Ron Hansen M.A. '95

22 - LOST IN CYBERSPACE Universities debate Internet addiction among students: Should we stop them before rhey surf again? By Jeff Brazil '85

28 - THE GRAPES OF WRATH: PART II Professor of Modern Languages Francisco Jimenez '66 remembers his childhood as a migrant laborer, …

Developing Methods To Measure And Project Levels Of Combat Readiness In A Naval Aviation Squadron At The Unit Level, Michael Lawrence White

Engineering Management & Systems Engineering Theses & Dissertations

Among the various missions and levels in a military organization, the term "Combat Readiness" is defined in many ways. To a unit-level command, such as an aircraft squadron, it simply refers to the unit's capability to perform its assigned mission when called upon. The proof of that capability is evident in the aftermath of combat, however, it is too late at that point to address any shortcomings that may exist. The problem is, how can the unit effectively define, continuously measure, and confidently forecast its ability to perform in combat? A quantitative model based upon historical data that encompasses all …

Modeling Diminishing Marginal Returns: An Application To The Aircraft Availability Model, Wayne L. Zorn

Theses and Dissertations

The Aircraft Availability Model (AAM) provides the Air Force with a worldwide peacetime requirement for reparable spare parts. This research models AAM methodology as it relates to the concept of diminishing marginal returns in resource application. Three separate modeling techniques are investigated with the goal of reformulating the AAM as a mathematical programming model that provides a comparable solution and a capable tool for the conduct of sensitivity analysis. The general formulations presented here are continuous non-linear, continuous linear, and piecewise linear discrete/continuous models. Two formulations of the piecewise linear discrete/continuous model are presented. The piecewise linear model based on …

Requirement For C-130 Aircraft In The Intratheater Korean Scenario, Philip B. Oglesby

Theses and Dissertations

In an effort to provide a timely and reasonably accurate methodology for determining C-130 intratheater airlift requirements, this research concentrated on a rough-cut capacity approach using a straight forward linear programming spreadsheet model. To provide more detailed analysis, a more sophisticated linear program was investigated. Specifically, the spreadsheet model calculated the minimum number of C-130s required to carry required cargo, passenger, and aeromedical loads based on user-defined daily requirements. For a given scenario, inputs include the daily requirements and the expected capacity for C-130 aircraft, trucks, and 22-car trains. Included in the capacity inputs are the number of daily cycles …

Integrating Key Functions In Product Development : A Conceptual Product Development Model For The Korean Context, Jong-Wook Kim

Theses

The high-tech market is characterized by market uncertainty, technology uncertainty and rapid change. To survive in this risky high-tech market, a company must create competitively effective product development practices that meet its own unique needs and circumstances.

One effective practice is cross-functional integration in the product development process. The advantages of integration include a shortened time to market, successful transformation of research results to production, productivity improvement, innovation project success, and high-quality problem solutions. However, these advantages are rarely obtained in the current product development practices of Korean companies. Their product development efforts are generally characterized by time consuming sequential …

Knowledge-Based System For Casting Process Selection, Ahmet Er, Edward Sweeney, Voya Kondic

Articles

Design of casting entails the knowledge of various interacting factors that are unique to casting process, and, quite often, product designers do not have the required foundry-specific knowledge. Casting designers normally have to liaise with casting experts in order to ensure the product designed is castable and the optimum casting method is selected. This two-way communication results in long design lead times, and lack of it can easily lead to incorrect casting design. A computer-based system at the discretion of a design engineer can, however, alleviate this problem and enhance the prospect of casting design for manufacture. This paper proposes …

Santa Clara Magazine, Volume 38 Number 1, Winter 1996, Santa Clara University

Santa Clara Magazine

8 - GERALD UELMEN: BACK IN THE CLASSROOM The School of Law professor and co-counsel for the O.J. Simpson defense reflects on the "trial of the century" and assesses its impact on legal education. Interview by Elise Banducci '87

12 - MARRIED WITHOUT CHILDREN Childless couples challenge deeply held beliefs about marriage and family. By Kath1yn Bold '81

16 - PORTRAIT OF THE ARTIST Gerald Sullivan, S.J., answers the questions "Why figurative painting?" "Why liberal arts?" and "Why dogs?" By Miriam Schulman

20 - PASSPORT TO KNOWLEDGE Study abroad programs in Italy and around the world push beyond traditional borders. …

A Lattice Boltzmann Subgrid Model For High Reynolds Number Flows, S. Hou, James D. Sterling, S. Chen, G. D. Doolen

Business and Information Technology Faculty Research & Creative Works

A sub grid turbulence model for the lattice Boltzmann method is proposed for high Reynolds number fluid flow applications. The method, based on the standard Smagorinsky sub grid model and a single-time relaxation lattice Boltzmann method, incorporates the advantages of the lattice Boltzmann method for handling arbitrary boundaries and is easily implemented on parallel machines. The method is applied to a two-dimensional driven cavity flow for studying dynamics and the Reynolds number dependence of the flow structures. The substitution of other sub grid models, such as the dynamic sub grid model, in the framework of the LB method is discussed.

Quality Of Life Of Rural Nebraskans: How Are They Doing And What Is In The Future?, John C. Allen, Sam Cordes, Amy M. Smith, Matt Spilker, Amber Hamilton

Rural Futures Institute: Publications

Includes

Executive Summary

Introduction

Methodology and Respondent Profile

Findings

Global Well-Being

Change in the Modern World

Personal Well-Being

Availability of Services and Amenities

Dissatisfaction with Services and Amenities

Dissatisfaction with Services/Amenities by Region

Dissatisfaction with Services/Amenities by Community Size

Dissatisfaction with Services/Amenities by Income Level

Conclusions

Environmental Issues And Perceptions Of Rural Nebraskans, John C. Allen, Sam Cordes, Amy M. Smith, Mike Spilker, Amber Hamilton

Rural Futures Institute: Publications

Includes

Executive summary

Introduction

Methodology

Respondent profile

Findings

The State's Role in Groundwater Protection

Regulation and Compliance Costs

Agriculture and the Environment

Conjunctive Use

Conclusions

Nebraskan Work Patterns And Available Benefits, John C. Allen, Sam Cordes, Amy M. Smith, Matt Spilker, Amber Hamilton

Rural Futures Institute: Publications

Includes

Executive Summary

Introduction

Methodology

Respondent Profile

Findings

Nebraskans and Work

Rural Nebraskans and Benefits

University Of Texas At Tyler Catalog, 1996-1998, University Of Texas At Tyler

Catalogs

Archives Space instance: https://archivesspace.uttyler.edu/repositories/2/archival_objects/22364

Gas Dynamic Unstart In Superdetonative Ram Accelerators, Kaveh Ghorbanian, James D. Sterling

Business and Information Technology Faculty Research & Creative Works

In this paper we analyze the reflection of non-reacting shock waves as oblique detonation waves. The 2D, steady, inviscid analysis makes use of detonation polar diagrams to identify incident shock angles that lead to reflected detonations, with and without detonation Mach stem formation. The implications of the results for design and operation of superdetonative ram accelerators are explored. The influence of the projectile forebody geometry, the propellant composition, and the takeover velocity is described. We conclude with a discussion of the significance of these parameters on superdetonative ram accelerator unstart phenomena.

Enhanced Combustion Pulsejet Engines For Mach 0 To 3 Applications, J. Sterling, K. Ghorbanian, T. Sobota

Business and Information Technology Faculty Research & Creative Works

In this paper, we discuss the cyclic operation of an enhanced combustion pulsejet engine (ECPE) applicable in the Mach number range of 0 to 3. The geometry of this engine naturally provides for integration into a new combined cycle engine with ramjets. As in the operation of conventional pulsejets, an ECPE provides engine aspiration, charge compression, combustion and expansion without the use of turbomachinery. The use of modern electronics, fuel injection, and feedback control offers the potential for performance improvements that could make the ECPE a cost-effective competitor for the turbojet engine. This article describes the operating cycle of a …

Influence Of Formation Processes On Oblique Detonation Wave Stabilization, K. Ghorbanian, J. D. Sterling

Business and Information Technology Faculty Research & Creative Works

In this article we report steady, two-dimensional, inviscid solutions for the near field and far field of a supersonic reactive flow over a variable-double-ramp geometry. The incident shock wave compresses and heats the reactants that will combust after flowing some induction length. Upon reaction, a detonation wave forms and intersects the leading wave at some distance from the ramp surface. In this article, reaction-polar diagrams are developed, and the detonation branch solutions are used to investigate the wave interaction processes that may lead to a steady three-wave structure. By considering this formation process new oblique detonation wave stabilization criteria based …

The Effects Of Risk Management Program Implementation On Worker Safety Knowledge, John C. Donnelly

Community & Environmental Health Theses & Dissertations

This study examined the effect of the implementation of a risk management program tool on worker safety knowledge in a composite building material fabrication facility whose workers suffered from an increasingly high injury (incidence) rate in recent years. Risk assessment codes (RACs) and job safety analyses (JSAs) were the primary tools used to introduce workers to the concept of risk. Because employee involvement is a crucial element in JSA development. employee input was frequently solicited throughout JSA development.

The study instrument consisted of a pre-test and post-test survey, to which an experimental and control group were subjected. The instrument was …