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Board Of Trustees Meeting Minutes, December 2-3, 1992

Board of Trustees Minutes

Minutes from the Wright State University Board of Trustees Meeting held on December 2-3, 1992.

Identifiability Of Semiconductor Defects From Lbic Images, Weifu Fang, Kazufumi Ito

Mathematics and Statistics Faculty Publications

The identifiability of defects in a semiconductor from its laser-beam-induced current (LBIC) image is studied. It is shown that the LBIC technique is reliable for detecting any spatial defects in the semiconductor material. Continuous dependence of the current measurements on the spatial defects is proved, and sensitivity is also discussed in certain cases.

Academic Council Meeting Agenda And Minutes, November 30, 1992, Edgar Rutter

Faculty Senate Minutes and Agendas

Agenda and minutes from the Wright State University Academic Council Meeting held on November 30, 1992.

Academic Council Meeting Agenda And Minutes, November 2, 1992, Edgar Rutter

Faculty Senate Minutes and Agendas

Agenda and minutes from the Wright State University Academic Council Meeting held on November 2, 1992.

Academic Council Meeting Agenda And Minutes, October 5, 1992, Edgar Rutter

Faculty Senate Minutes and Agendas

Agenda and minutes from the Wright State University Academic Council Meeting held on October 5, 1992.

Student Fact Book, Fall 1992, Wright State University, Office Of Student Information Systems, Wright State University

Wright State University Student Fact Books

The student fact book has general demographic information on all students enrolled at Wright State University for Fall Quarter, 1992.

Board Of Trustees Meeting Minutes, October 1-2, 1992

Board of Trustees Minutes

Minutes from the Wright State University Board of Trustees Meeting held on October 1-2, 1992.

Perception/Action: An Holistic Approach, John M. Flach

Psychology Faculty Publications

A general systems approach is taken to studying the emergent properties of the human perception/action system. Two task domains, the control of locomotion and the recognition of objects, are used to study human performance. The locomotion task involves the control of altitude. Experiments are described that will manipulate the type of texture, the speed of forward motion, and altitude. A general hypothesis is presented that performance in the altitude control task is a function of the signal-to-noise ratio within the flow field--where signal refers to optical activity resulting from change of altitude and noise refers to optical activity resulting from …

Abduction In Annotated Logic Programming, Krishnaprasad Thirunarayan

Kno.e.sis Publications

The author investigates techniques to make the logic programming paradigm more expressive for knowledge representation, while simultaneously retaining the computational advantages of efficiency and simplicity. He extends the annotated language of K. Thirunarayan and K. Kifer (1989) in various directions to obtain an enriched representation language. In particular, rule bodies are permitted to be a conjunction of literals, and the rules to be recursive. A class of annotated logic programs called the stratified programs is identified which can be given a unique supported minimal Herbrand model as their meaning. Abductive reasoning is integrated into this annotated logic framework. The notion …

Carolyn Wright Interview, Former Director Of Bolinga Center, Wright State University, Alyce Earl Jenkins, Carolyn Wright

Profiles of African-Americans: Their Roles in Shaping Wright State University

Alyce Jenkins interviewed Carolyn Wright, former Director of the Bolinga Cultural Resources Center at Wright State University on September 13, 1982. In the interview Wright discussed her time as a student who participated in the development of the Bolinga Center and ultimately her time as an administrator of it.

Mary Jo Wiley Interview, Center For Labor Management Cooperation, Wright State University, Emmett C. Orr, Mary Jo Wiley

Profiles of African-Americans: Their Roles in Shaping Wright State University

Emmett Orr interviewed Mary Jo Wiley, Senior Secretary for the Center for Labor Management Cooperation on September 2, 1992. In the interview Wiley discussed her role at Wright State, her history within the institution, and more.

Harold L. Nixon Interview, Student Affairs, Wright State University, Alyce Earl Jenkins, Harold L. Nixon

Profiles of African-Americans: Their Roles in Shaping Wright State University

Alyce Jenkins interviewed Harold L. Nixon, Vice President for Student Affairs at Wright State University on September 2, 1992. In the interview Nixon discussed his early education, his career experiences, and coming to work at Wright State as the Vice President for Student Affairs.

Lillian Johnson Interview, Interim Director Of Bolinga Cultural Resources Center, Wright State University, Alyce Earl Jenkins, Lillian Johnson

Profiles of African-Americans: Their Roles in Shaping Wright State University

Alyce Jenkins interviewed Lillian Johnson, Interim Director of the Bolinga Cultural Resources Center at Wright State University in September of 1992. In the interview Johnson discusses early career, her time at Wright State, her work at the Bolinga Center, and more.

Shifted X-Ray Photoelectron Peak In Molecular-Beam Epitaxial Gaas Grown At 200 Degrees C, David C. Look, J. T. Grant, J. R. Sizelove

Physics Faculty Publications

X‐ray photoelectron spectroscopic results show that molecular beam epitaxial GaAs grown at 200 °C has a reduced effective surface potential energy, about 0.5 eV, compared with the usual 0.7 eV. A Poisson analysis of the data, using parameters from Hall effect and absorption measurements, requires that the Fermi‐level‐controlling defect in this material must have a significantly lower activation energy than that of EL2, an unexpected result.

Photoquenching Of Hopping Conduction In Low-Temperature-Grown Molecular-Beam-Epitaxial Gaas, Z-Q. Fang, David C. Look

Physics Faculty Publications

We have observed IR photoquenching of the hopping conduction in GaAs samples grown by molecular beam epitaxy at the low temperature of 250 °C and annealed at temperatures from 300 to 600 °C. A key element in the success of this study is removal of the layers from their substrates. The hopping conduction recovers at about 140 K, with a thermal activation energy of about 0.3 eV.

Gelatinase Activity In The Mouse Uterus During Early Pregnancy, Carol A. Brenner, Richard R. Adler, Gary L. Nieder

Neuroscience, Cell Biology & Physiology Faculty Publications

No abstract provided.

Using Flexible Transactions To Support Multisystem Telecommunication Applications, Mansoor Ansari, Linda Ness, Marek Rusinkiewicz, Amit P. Sheth

Kno.e.sis Publications

Service order provisioning is an important telecommunication application that automates the process of providing telephone services in response to the customer requests. It is an example of a multi-system application that requires access to multiple, independently developed application systems and their databases. In this paper, we describe the design and implementation of a prototype system1 that supports the execution of the Flexible Transactions and its use to develop the service order provisioning application. We argue that such approach may be used to support the development of multi-system, flow-through processing applications in a systematic and organized manner. Its advantages include fast …

Traps In Semi-Insulating Inp Studied By Thermally Stimulated Current Spectroscopy, Z. Q. Fang, David C. Look, J. H. Zhao

Physics Faculty Publications

Traps in Fe‐doped semi‐insulating InP samples have been studied by thermally stimulated current spectroscopy with IR (hν≤1.12 eV) excitation at 81 K. The possible involvement of native defects in determining the compensation mechanisms is suggested based on the observation of other than the usual 0.64 eV Fe‐related activation energy for the dark current in one of the four samples supplied from different sources. A metastable behavior of traps in another sample was found and explained by a charge‐controlled defect reaction model. Three out of the six traps observed are suggested to be electron traps and one among the …

Defect Models In Electron-Irradiated N-Type Gaas, B. Ziebro, Joseph W. Hemsky, David C. Look

Physics Faculty Publications

1 MeV electron irradiation has been performed in degenerate, n‐type (n≂2×10¹⁷ cm^-3), molecular beam epitaxial GaAs layers, and Hall effect measurements have been carried out during the irradiation in order to get accurate defect production data. The results have been fitted with statistical models, and are most consistent with the usual E1 (E_C-0.045 eV) and E2 (E_C-0.15 eV) levels being the (-/0) and (0/+) transitions of the As vacancy, respectively. Also, an acceptor well below EC-0.15 eV is produced at a much higher rate than that of E1 and E2.

Irma Lucas Interview, Wife Of Rev. George Lucas, Wright State University Board Of Trustees, Alyce Earl Jenkins, Irma Lucas

Profiles of African-Americans: Their Roles in Shaping Wright State University

Alyce Jenkins interviewed Irma Lucas, wife of Reverend George W. Lucas, one of the first Board of Trustee members at Wright State University on June 16, 1992. In the interview Lucas discussed the Reverend's educational background, their arrival at Wright State, and more.

Task Force On The Status Of Women In The Academy-- Final Report On A Women's Studies Program, Mary Beth Pringle

Women's Center Reports

To help Wright State University fulfill its "commitment to providing leadership that addresses the educational, social, and cultural needs of the Greater Miami Valley," the Task Force on the Status of Women in the Academy recommends the University establish a Women's Studies Program, Center, and Board. This three-part Women's Studies structure will foster an "intellectually exciting community" and a more positive learning environment, both of which we see as fundamental to the University's mission. A Women's Studies program will ensure that Wright State University's majority population, its nearly 10,000 female students, will better see their histories and perspectives reflected in …

Alphonso L. Smith Interview, College Of Science And Mathematics, Wright State University, Alyce Earl Jenkins, Alphonso L. Smith

Profiles of African-Americans: Their Roles in Shaping Wright State University

Alyce Jenkins interviewed Alphonso L. Smith, Assistant Dean for the College of Science and Mathematics at Wright State University on June 3, 1992. In the interview Smith discussed his arrival at Wright State, his career as a faculty member there, and more.

Inverse Problems For Metal Oxide Semiconductor Field-Effect Transistor Contact Resistivity, Weifu Fang, Ellis Cumberbatch

Mathematics and Statistics Faculty Publications

Inverse problems arising from the identification of transistor contact resistivity and contact window location are studied. A one-point boundary measurement of the potential is shown to be sufficient to identify each from a one-parameter monotone family, and such identification is both stable and continuously dependent on the parameter. For a nonmonotone family of locations with resistivity given, similar results are obtained for measurement made on almost all boundary points.

Academic Council Meeting Agenda And Minutes, June 1, 1992, Gregory Bernhardt

Faculty Senate Minutes and Agendas

Agenda and minutes from the Wright State University Academic Council Meeting held on June 1, 1992.

Mechanisms For Gaas Surface Passivation By A Molecular-Beam Epitaxial Cap Layer Grown At 200-Degrees-C, David C. Look, D. C. Walters, C. E. Stutz, K. R. Evans, J. R. Sizelove

Physics Faculty Publications

A thin, undoped, molecular beam epitaxial (MBE) GaAs cap layer grown on top of an n‐type conductive layer significantly reduces the free‐electron depletion from the latter. By analyzing electron transfer to surface, interface, and bulk acceptor states in the cap, as a function of cap thickness, we show that either (1) the usual E_C−0.7 eV surface states are absent, (2) a dense donor near E_C−0.4 eV exists or (3) a high donor interface charge (∼5×10¹² cm⁻²) is present. Any of these conclusions constitutes an important new aspect of low‐temperature MBE GaAs.

Native Donors And Acceptors In Molecular-Beam Epitaxial Gaas Grown At 200 Degrees C, David C. Look, D. C. Walters, M. Mier, C. E. Stutz, S. K. Brierley

Physics Faculty Publications

Absorption measurements at 1.1 and 1.2 μm were used along with the known electron and hole photoionization cross sections for EL2 to determine deep donor (EL2‐like) and acceptor concentrations N_D=9.9×10¹⁹ and N_A=7.9×10¹⁸ cm⁻³, respectively, in a 2‐μm‐thick molecular‐beam epitaxial GaAs layer grown at 200 °C on a 2‐in.‐diam semi‐insulating wafer. Both lateral and depth uniformities of N_D over the wafer were excellent as was also the case for the conductivity. Band conduction was negligible compared to hopping conduction at 296 K as evidenced by the lack of a measurable Hall coefficient.

Algorithms For Structural Schema Integration, James Geller, Ashish Mehra, Yehoshua Perl, Erich Neuhold, Amit P. Sheth

Kno.e.sis Publications

Current view and schema integration methodologies are driven by semantic considerations, and allow integration of objects only if that is valid from semantic and structural viewpoints. We had introduced a new integration technique called structural integration. It permits integration of objects that have structural similarities, even if they differ semantically. This technique uses the object-oriented Dual Model which separates the representation of structure and semantics.

In this paper we introduce algorithms for structural integration. We apply these algorithms to integrate two views of a large university database schema which had significant structural similarities but differed semantically.

Board Of Trustees Meeting Minutes, May 27-28, 1992

Board of Trustees Minutes

Minutes from the Wright State University Board of Trustees Meeting held on May 27-28, 1992.

Incorporation Of Si And Al In Low Temperature Mbe Gaas, M. O. Manasreh, K. R. Evans, C. E. Stutz, David C. Look

Physics Faculty Publications

The localized vibrational modes (LVMs) of silicon donor (Si_Ga) and aluminum isovalent (Al_Ga) impurities in molecular beam epitaxial GaAs layers grown at various temperatures are studied using the infrared absorption technique. It is found that the total integrated absorption of these impurities LVMs is decreased as the growth temperature decreases. This finding suggests a nonsubstitutional incorporation of Si and Al in GaAs layers grown at 200 °C. On the other hand, a subtitutional incorporation is obtained in GaAs layers grown at temperatures higher than 350 °C. A recovery of the Si_Ga LVMs in GaAs layers …

Academic Council Meeting Agenda And Minutes, May 4, 1992, Gregory Bernhardt

Faculty Senate Minutes and Agendas

Agenda and minutes from the Wright State University Academic Council Meeting held on May 4, 1992.