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Virginia Tech - ETD - 04192001
Dynamics of Competition using a Bit String Model with Age Structure and MutationsRobert J. AstalosDissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulllment of the requirements for the de
Virginia Tech - ETD - 42698
Appendix AViews of New Machine56Figure A.1 Overview of New Rig57Figure A.2 Board Feeding System58Figure A.3 Linear Force and Angular Off-Set System59Figure A.4 Screw Feeding and Alignment Mechanism60Appendix BImages of Sectioned
Virginia Tech - ETD - 42698
Chapter 1 Introduction1.1 Importance of this ResearchMost of us do not consider the economic or design significance associated with the common screwdriver bits that are used in construction and home improvements. In 1997 however, screwdriver bits f
Virginia Tech - ETD - 42698
Chapter 2 Literature Review2.1 Patented GeometriesJuly 7, 1936, four patents were awarded to Henry F. Phillips inventor of the famed Phillips-type screwdriver bit and screw. These patents are listed under the areas of Screws (U.S. Patent #2,046,343
Virginia Tech - ETD - 42698
Chapter 3 Old and New Test Machines3.1 Motivation for New RigAs mentioned in section 1.2, measuring fracture and bit torque transfer efficiency are concerns when evaluating a bit. Bit wear, however, is the dominant worry. The current screwdriver bi
Virginia Tech - ETD - 42698
Chapter 4 Evaluating Bit Wear4.1 Current EvaluationIn the current evaluation process used by our industrial partner, bit wear is recorded photographically. After the Dixon rig has driven 250 screws, the bit is removed from the test rig and photogra
Virginia Tech - ETD - 42698
Chapter 5 Laws Governing Surface Contact5.1 Necessity of Surface Contact LawsTo apply knowledge obtained about the bits geometrical changes, it is necessary to have a general understanding of the laws that govern surface contact. As discussed in se
Virginia Tech - ETD - 42698
Chapter 6 Improved Bit Geometry Proposal6.1 How to Fundamentally Improve Bit DesignA sectional view of the screw and bit, Fig. 6.1 shows the common normal along which the force F acts as a standard Phillips bit mates with a screw. Contact occurs at
Virginia Tech - ETD - 42698
Chapter 7 Conclusions and Future Work7.1 ConclusionsA great deal was learned from studying bits and how to test and analyze them. Much of that learning will manifest itself as suggestions for future work, which will be detailed in section 7.2. Conc
Virginia Tech - ETD - 42698
Testing and Understanding Screwdriver Bit WearW. Alexander AdlerAbstractThis thesis is focused on gaining a better knowledge of how to design and test Phillips screwdriver bits. Wear is the primary concern in applications where the bit is used in
Virginia Tech - ETD - 42698
ReferencesArcher, J.F., 1980, Wear Theory and Mechanisms, Wear Control Handbook, pp. 44-45, ASME, New York. ASME, 1993, Flat Tip and Phillips Screwdrivers, ASME B107.15, ASME Standards Committee, B107, Hand Tools and Accessories. Bailey, J., 1988, D
Virginia Tech - ETD - 42698
Testing and Understanding Screwdriver Bit Wearby W. Alexander AdlerThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree ofMaster of ScienceinMecha
Virginia Tech - ETD - 42698
VitaWilhelm Alexander Adler was born on December 4, 1973 to Winfred and Elizabeth Adler in Charlottesville, Virginia. Prior to coming to Virginia Tech in August of 1992 he lived primarily in Charlottesville, excluding a two-year period when he lived
Virginia Tech - ETD - 11192001
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 06122003
References Australian Department of Foreign Affairs and Trade. (2001). Belize: Country information. Retrieved March 10, 2003, from http:/www.dfat.gov.au/geo/belize/belize_brief.html Babb, C. I. (2002). The relationship between parental involvement in
Virginia Tech - ETD - 06122003
Chapter One: IntroductionBelize is a small Central American country located just south of Mexicos Yucatan peninsula. It is bordered by Guatemala on the south and west and the Caribbean on the east. European colonists first settled in Belize when Br
Virginia Tech - ETD - 06122003
A DESCRIPTIVE STUDY OF BELIZEAN HIGH SCHOOL STUDENTS POSTSECONDARY PLANS by Samuel Clay AdamsThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University In partial fulfillment of the requirements for the degree of MAS
Virginia Tech - ETD - 04122000
Determining the Effectiveness of the Usability Problem Inspector: A Theory-Based Model and Tool for Finding Usability Problems Terence S. Andre Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partia
Virginia Tech - ETD - 052999
Appendix AAppendix A GES Selected Variables SAS Extraction Programs GES Standard Errors GES Weighted Statistics84Appendix AAppendix AGES Database Variables Table A-1 Accident File VariablesVariable NameA2 HOUR_IValues & DefinitionTh
Virginia Tech - ETD - 052999
Appendix BAppendix B GES Accident Type (Tables)-Variable 23 Accident Type Figures Model Input-Raw Accident Rate Data92Appendix BAPPENDIX BTable B-1: GES Variable 23 Accident TypeCategory I. Single Driver Configuration A. Right Roadside
Virginia Tech - ETD - 052999
Appendix CAppendix C INTEGRATION Description FORTRAN Code ANOVA SAS File and Output Simulation Output112Appendix CAppendix CThis appendix presents a brief description of the INTEGRATION model that was used in this thesis. The most impor
Virginia Tech - ETD - 052999
Chapter 1IntroductionCHAPTER 1 INTRODUCTION1.1 Introduction Despite the fact that the total number of police reported accidents decreased the last few years, safety is one of the challenging issues in the transportation industry. The safety impa
Virginia Tech - ETD - 052999
Chapter 2Literature ReviewCHAPTER 2 LITERATURE REVIEW2.1 Introduction This chapter presents some background information of the available literature related to the development of accident rates, accident models and accident statistic databases.
Virginia Tech - ETD - 052999
Chapter 3Sources of Data and Highway StatisticsCHAPTER 3 SOURCES OF DATA AND HIGHWAY STATISTICS3.1 IntroductionThis chapter presents a background on some of the data that were used for the purposes of this thesis. Such data include road mileag
Virginia Tech - ETD - 052999
Chapter 4Extraction of Data from the GES DatabaseCHAPTER 4 EXTRACTION OF DATA FROM THE GES DATABASE4.1 IntroductionIn order to develop the accident rates to be used as input for the safety model, the crash data needed to be extracted from the
Virginia Tech - ETD - 052999
Virginia Tech - ETD - 052999
Chapter 6Conclusions and RecommendationsCHAPTER 6 CONCLUSIONS AND RECOMMENDATIONS6.1 Summary of the thesisThis thesis presented a safety model that captured the safety impacts of traffic signal coordination. The largest accident database in t
Virginia Tech - ETD - 052999
Quantifying the Safety Impacts of Intelligent Transportation SystemsAlexis A. AvgoustisThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirement for the degree ofMaster
Virginia Tech - ETD - 052999
ReferencesREFERENCESBernardo R. Nelson and John N. Ivan (1997) Predicting Number of Crashes Vs Crash Rate Using Poisson Regression, Transportation Research Board: 1997 Bhagwant N. Persaud and Kornel Musci, Microscopic Accident Potential Models for
Virginia Tech - ETD - 052999
Vita Alexis A. AvgoustisAlexis Avgoustis was born in Nicosia, Cyprus on September 13, 1972. After completing the science section of the Lyceum with High Honors, he joined the Civil Engineering program of the Higher Technical Institute (H.T.I) in Ni
Virginia Tech - ETD - 111297
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 01312001
Efficacy of Selected Chemicals on the Attachment and Survival of Campylobacter jejuni on Chicken Breast SkinFletcher M. Arritt, IIIThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment o
Virginia Tech - ETD - 04242002
Changes in Skeletal Muscle Sarcoplasmic Reticulum Calcium Handling and Regulatory Protein Content in Congestive Heart FailureBy Emily E. AllenSubmitted to the Faculty of Virginia Polytechnic Institute and State University in partial fulfillment of
Virginia Tech - ETD - 10172005
Virginia Tech - ETD - 062399
PERCEPTIONS OF COLLEGE STUDENTS DIAGNOSED WITH PANIC DISORDER WITH AGORAPHOBIA: ACADEMIC, PSYCHOSOCIAL, AND ENVIRONMENTAL VIEWS OF THEIR COLLEGE EXPERIENCEby Susan Pugh AngleDissertation submitted to the Faculty of the Virginia Polytechnic Instit
Virginia Tech - ETD - 12052005
Adaptive Flight Control in the Presence of Input ConstraintsAmir F. AjamiThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulllment of the requirements for the degree ofMaster of Science in A
Virginia Tech - ETD - 11212002
Effects of Starch-based Anti-caking Agents on the Functional Properties of Shredded Mozzarella CheeseMaureen Lynch Akins Thesis submitted to the Graduate Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of t
Virginia Tech - ETD - 061099
An Analysis of Stability Margins for Continuous SystemsJulie C. AlbanusThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree ofMaster of Science in M
Virginia Tech - ETD - 01152002
THE EFFECT OF MATERNAL AND FETAL INBREEDING ON DYSTOCIA, CALF SURVIVAL, DAYS TO FIRST SERVICE AND NON-RETURN PERFORMANCE IN U.S. DAIRY CATTLEby Vaclav Adamec Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State Unive
Virginia Tech - ETD - 01112002
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 01112002
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 01112002
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 07242006
A Study of Cooperative Ventures Addressing the Needs of Forest Landowners in Southern AppalachiaSarah F. AshtonThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements f
Virginia Tech - ETD - 08312001
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla
Virginia Tech - ETD - 08152001
EFFECT OF FEEDING DIFFERENT PROTEIN AND ENERGY SUPPLEMENTS ON PERFORMANCE AND HEALTH OF BEEF CALVES DURING THE BACKGROUNDING PERIOD by R. Jesse Austin Thesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in parti
Virginia Tech - ETD - 5220145896
A Design Methodology for Physical Design for TestabilitySalahuddin A. AlmajdoubDissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulllment of the requirements for the degree ofDOCTOR OF P
Virginia Tech - ETD - 5220145896
A Design Methodology for Physical Design for TestabilitySalahuddin A. AlmajdoubDissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulllment of the requirements for the degree ofDOCTOR OF P
Virginia Tech - ETD - 61498
Limited Memory Space Dilation and Reduction Algorithms by Zafar A. AnsariThesis submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science in In
Virginia Tech - ETD - 082799
NONLINEARITY AND OVERSEAS CAPITAL MARKETS:Evidence from the Taiwan Stock ExchangePeter A. AmmermannDissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for th
Virginia Tech - ETD - 082799
Chapter 2Literature ReviewAs Hsieh (1991) notes, After the stock market crash of October 19, 1987, interest in nonlinear dynamics, especially deterministic chaotic dynamics, has increased in both the financial press and the academic literature. Th
Virginia Tech - ETD - 082799
Chapter 3Taiwan and the Taiwan Stock Exchange3.1. A Brief History of Taiwan and the Republic of ChinaTaiwan is a small island, roughly the size of Maine or West Virginia, which lies astride the Tropic of Cancer in the East China Sea, approximatel
Virginia Tech - ETD - 082799
Chapter 4Evidence on the Existence and Pervasiveness of Nonlinear Serial Dependencies on the Taiwan Stock Exchange4.1. Data Available for StudyThe goal of this chapter is to examine whether the time series of returns of securities listed on Taiwa
Virginia Tech - ETD - 082799
Chapter 5Evidence on the Stability of Serial Dependencies within Taiwan Stock Returns5.1. The Question of Temporal StabilityA maintained assumption of all the tests used in the previous sections of this chapter is that whatever stochastic process
Virginia Tech - ETD - 082799
Chapter 6Linear Filtering and Taiwan Stock Return Nonlinearity6.1. IntroductionThe results of the previous chapter demonstrate that the serial dependencies within Taiwanese stock returns that are reflected in the significant autocorrelation and n
Virginia Tech - ETD - 082799
Chapter 7Dynamic Heteroskedasticity and Taiwan Stock Return Nonlinearity7.1. IntroductionThe results for the dynamic normal linear regression models fit in the previous chapter suggest that there are significant autocorrelation effects in the ret
Virginia Tech - ETD - 082799
Chapter 8Concluding RemarksThe primary subject of the preceding chapters has been the Taiwan stock market, a relatively isolated and little-studied market. Thus, one of the contributions of this research has been simply to provide additional infor
Virginia Tech - ETD - 05072008
A Proposed Standardized Testing Procedure for Autonomous Ground VehiclesThomas James AlberiThesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulllment of the requirements for the degree ofMast
Virginia Tech - ETD - 32498
Virginia Tech - ETD - 04162000
A Comparison Study of the Relationships of 4/4 Block Scheduled Schools and 7-Period Traditional Scheduled Schools on the Standards of Learning Tests for Virginia Public Secondary SchoolsDuane Thomas AldermanDissertation submitted to the Faculty o
Virginia Tech - ETD - 05242007
UCD Disclaimer Form:This face database is publicly available for academic use only. While every effort has been made to ensure accuracy UCD cannot accept responsibility for errors or omissions. Use of this database is free of charge. Commercial dist
Virginia Tech - ETD - 04072002
ETD-db: Item Temporarily RestrictedThis item has been taken ofine by Virginia Tech Library or Graduate School. This restriction is temporary, and the item will be automatically made available again shortly. For more information, contact Gail McMilla