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The Calendar - February 1992, Nova University

The Calendar

No abstract provided.

A Computer Based Educational Aid For The Instruction Of Combat Modeling, Richard S. Moore

Theses and Dissertations

The Air Force Institute of Technology is one of few institutions that teaches combat modeling. Combat models are typically dynamic computer simulations of specialized dynamic processes. Great difficulty exists in portraying these dynamic and recurrent processes with conventional static diagrams. This thesis produced a computer-based instructional aid which presents animated examples of processes common to combat models, demonstrates a simple few-on-few aerial combat model, and encourages student exploration and interaction with these presentations. This aid provides dynamic examples of random number generation, detection processes, target selection, and target destruction. A complete combat model demonstrating a few-on-few air duel is animated …

Transient Stability Test Systems For Direct Stability Methods, V. Vittal, D Martin, R Chu, J Fish, J C. Giri, C K. Tang, F. Eugenio Villaseca, R G. Farmer

Electrical and Computer Engineering Faculty Publications

A standard set of power system data with benchmark results are presented against which direct stability techniques to assess transient stability can be compared and tested. The test systems have been selected to display a wide range of dynamic characteristics to provide a robust test of the efficacy and accuracy of the various analytical techniques to analyze transient stability. Transient stability test system data and benchmark results obtained from two commercially available time-domain stability analysis packages are presented

Computer Aided Shape Optimization Using Finite Element Analysis, Charanpreet Singh Bagga

Theses

Various theories behind Computer Aided Shape Optimization are studied. A special attention is paid to the shape representation, mesh generation and refinement during the shape optimization process. Shape optimization process for a wall bracket is performed using the Computer Aided Engineering package of I-DEAS. Finite element analysis of the wall bracket is done and the stress distribution over the bracket is studied. The bracket is trimmed in the selected low stress regions using shape optimization capability of I-DEAS and an optimized shape of the wall bracket is obtained. The end product is evaluated using Supertab module of I-DEAS as well …

Biodegradation Of Phenol And Benzoic Acid In Batch And Sequencing Batch Reactors, Stephane Reynaud

Theses

A pure culture of Pseudomonas aeruginosa ( ATCC 10145 ) was used for the biodegradation of phenol and benzoic acid. Two sets of small scale (shaker flask) experiments were originally performed: in the first set, phenol was the only carbon source present while in the second, benzoic acid was the sole carbon source. These experiments revealed the kinetics of benzoic acid degradation (they were found to be described by a Monod, non-inhibitory model), as well as of phenol biodegradation (they were found to be described by Andrews'inhibitory model) by Pseudomonas aeruginosa.

The kinetic expressions from the small scale experiments …

Eies 2 : A Distributed Architecture For Supporting Group Work, Computerized Conferencing & Communications Center, James Whitescarver, Robert M. Czech, Sreenivas Reddy, Ajaz R. Rana, Murray Turoff

Computerized Conferencing and Communications Center Reports

The Computerized Conferencing Center (CCCC) at New Jersey Institute of Technology (NJIT) has been researching on-line group communications for 17 years by developing and studying tools to advance the "collective intelligence". The Electronic Information Exchange System 2 (EIES2) provides a research, development and operational environment for distributed computer supported cooperative work (CSCW) systems. The EIES 2 distributed Smalltalk processor provides for rapid prototyping and implementation of muti-media CSCW facilities in the network environment. The Smalltalk support of the object model, and meta-language properties make it ideally suited for incremental development CSCW applications. The EIES2 communication environment supports a decentralized network …

Acuta Enews January 1992, Vol. 21, No. 1

ACUTA Newsletters

In This Issue

Are you ready for the ADA?

Alabama regulators take aim at campus phone services

NATA asks that blocking services be mandatory for LECS

Distance education programs, technology continue to mature

Message From The President

Merging technologies may mean crossfire of competition

Monographs: opportunity to share knowledge

ADA to have far-reaching effect on telecommunications

Party Line

Annenberg announces distance learning grants

Marketplace Update

The Effect Of Serial Passaging Of Lactobacilli In Liquid Medium On Their Physico-Chemical And Structural Surface Characteristics, Pieter L. Cuperus, Henny C. Van Der Mei, Gregor Reid, Andrew W. Bruce, Antoine E. Khoury, Paul G. Rouxhet, Henk J. Busscher

Cells and Materials

The aim of this study was to examine the effect of serial passaging in liquid medium on physico-chemical and structural surface characteristics of two lactobacillus strains. To this end, starting cultures (p = 1) of urogenital isolate L. acidophilus RC 14 and poultry isolate L. fermentum B54 were serially passaged in liquid medium up to 20 times (p = 20). In both strains, similar physico-chemical and structural changes were observed following serial passaging. According to water contact angle measurements , cells in p = 20 cultures became less hydrophobic. Microelectrophoresis showed that isoelectric points shifted towards the acidic region upon …

Architectural Support For Designing Fault-Tolerant Open Distributed Systems, Salim Hariri, Alok Choudhary, Behcet Sarikaya

Electrical Engineering and Computer Science - All Scholarship

A distributed system consists of autonomous computing modules that interact with each other using messages. Designing distributed systems is more difficult than designing centralized systems for several reasons. Physical separation and the use of heterogeneous computers complicate interprocessor communication, management of resources, synchronization of cooperating activities, and maintenance of consistency among multiple copies of information. The main advantages of distributed systems include increased fault-tolerance capabilities through the inherent redundancy of resources, improved performance by concurrently executing a single task on several computing modules, resource sharing, and the ability to adapt to a changing environment (extensibility). Distributed systems cover a wide …

Spring 1992, 90.9 Wmpg Fm

WMPG Program Guides

Newsletter format.

Winter 1992-1993, 90.9 Wmpg Fm

WMPG Program Guides

WMPG Program Guide Winter 1992-1993

Nothing Recedes Like Success - Risk Analysis And The Organizational Amplification Of Risks, William R. Freudenburg

RISK: Health, Safety & Environment (1990-2002)

Professor Freudenburg believes that there is room for improvement in Risk analysis, particularly in drawing on systematic studies of human behavior in the calculation of real, empirical probabilities of failure. The need is argued to be especially acute where technological Risks are associated with low expected probabilities of failure and are managed by human organizations for extended periods of time. This permits complacency to set in.

Bone Regeneration Materials For The Mandibular And Craniofacial Complex, Jeffrey Hollinger, Anshumali Chaudhari

Cells and Materials

Due to different functional demands and vascularity, the mandibular and craniofacial complex require bone regenerating materials with physical and chemical properties that are different from long bone. However, certain common requirements to both locales must be addressed. Furthermore, reasons why the autograft and allogeneic bank bones are successful in regenerating bone need to be understood if the researcher is to develop satisfactory alternatives. The purpose of this paper is to review some of the requirements needed for bone regenerating materials for mandibular and craniofacial bone repair. In that effort, we have briefly described the autograft and allogeneic bank bones, animal …

Santa Clara Magazine, Volume 34 Number 2, Winter 1992, Santa Clara University

Santa Clara Magazine

12 - 3 PATHS TO POLITICS Dee Dee Myers '83, Gary Serda '82, and Janet Napolitano '79 have taken three decidedly different roads to political careers. By Kathy Daile-Molle '85

18 - WHAT DO YOU WANT TO BE WHEN YOU GROW UP? Increasingly, people are finding themselves making several career transitions throughout their work lives. By Mike Brozda '76

22 - EL CENTRO: THE EYE OF THE STORM For San Jose's Hispanic community, this mental health clinic, whose counselors are primarily SCU grads, provides a respite from the turbulence of life in a strange culture. By Susan Frey

24 - …

Changes In Intracellular Ca2+ And Structure In Platelets Contacting Synthetic Substrates, L. M. Waples, O. E. Olorundare, S. L. Goodman, R. M. Albrecht

Cells and Materials

Platelet structural changes such as spreading and cytoskeletal reorganization that occur upon contact with synthetic surfaces have been well documented . Structural changes such as spreading will vary depending on the substrate involved . Although platelet structural changes following adhesion have been recorded , the cellular mechanisms including changes in intracellular calcium flux underlying these platelet responses are less well understood. In this study, video microscopy was used to image platelet adhesion and spreading while simultaneously imaging intracellular free Ca2+ levels in individual Fura-2 loaded human platelets. This was accomplished using fluorescence video microscopy coupled with video enhanced asymmetric illumination …

Doctor Of Science In Computer Information Systems, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Unequal Error Protection Qpsk Modulation Codes, Robert H. Morelos-Zaragoza, Shu Lin

Faculty Publications

The authors use binary linear UEP (LUEP) codes, in combination with a QPSK signal set and Gray mapping, to obtain new efficient block QPSK modulation codes with unequal minimum squared Euclidean distances. They give several examples of codes that have the same minimum squared Euclidean distance as the best QPSK modulation codes of the same rate and length. A new suboptimal two-stage soft-decision decoding is applied to LUEP QPSK modulation codes.

Photonics In Switching, Harvard S. Hinton

Electrical and Computer Engineering Faculty Publications

One of the keys to the future of telecommunications companies will be their ability to provide new broadband services to both the business community and residential customers. With the new services will come the need for the equivalent of a broadband switching office. Such a system could require the capability of supporting in excess of 10000 users with broadband channel bit rates exceeding 100 Mb/s. This implies a switching fabric the aggregate bit rate of which could be greater than 1 Tb/s. Guided-wave technology and free-space technology switching fabrics are discussed. Three time-division-based switching fabrics are proposed, and two wavelength-division-based …

Environmental Engineering Options For Managing Contaminated Sediment, Norman R. Francingues. Jr.

United States Army: Publications

Technologies that have been identified as feasible for remediating contaminated sediment and are peing considered for demonstration in the Great Lakes are presented in this paper. This review is limited to the components and technologies required for removal and management of highly contaminated sediment. Over two hundred technology process options were reviewed for effectiveness, implementability and costs. However, few of these processes have actually been applied to contaminated sediment on a full scale. Most of the technology evaluations have been conducted at the bench scale with limited data available for pilot scale assessment. Therefore, further testing and evaluation of the …

Electromagnetic Focusing Properties Of Chirped Metallic Gratings, Jeffrey C. Schmidt

Retrospective Theses and Dissertations

The focusing properties of chirped diffraction gratings have long been studied and often used in applications at optical frequencies. Chirped metallic gratings of this type have also been studied theoretically at microwave frequencies, but no attempt has been made to experimentally examine or utilize the focusing properties of these structures at microwave frequencies. This thesis presents an experimental analysis of the focusing properties of chirped metallic gratings. These gratings are designed to focus electromagnetic energy at a predetermined position by varying strip width and spacing as a function of position. The diffraction gratings are characterized, and experimentally measured results are …

Impulse, Holly Kleinsasser, Lois Hatton, Cindy Price, Steve Poessnecker

Impulse (Jerome J. Lohr College of Engineering Publication)

Features:
[Page 2] Eliminating pain through electronic impulses drives SDSU grad to success
[Page 4] South Dakota work ethic helps growth of Clear Lake plant
[Page 6] Company excels in refinery turnarounds
[Page 8] Schiller's work: with NASA
[Page 9] SDSU graduate directs Zytec to top award
[Page 10] Buckley book shows another side of dean

Departments:
Faculty:
[Page 12] Browning teaches telecourse statewide
[Page 13] Egyptian Fulbright Scholar updating homeland maps
[Page 13] Egyptian Fellow studies U.S. bridge design
[Page 13] Sander honored by local Chamber of Commerce
[Page 14] New faculty
[Page 15] Engineering professors gain emeritus status …

Effect Of Ultrasound On Acidified Brine Leaching Of Double-Kiln Treated Eaf Dust, J. A. Barrera-Godinez, Thomas J. O'Keefe, Johh L. Watson

Materials Science and Engineering Faculty Research & Creative Works

The U.S. steel industry produces approximately 500,000 tons/year of electric arc furnace (EAF) dust, which is classified as a hazardous waste. Increasing disposal costs of these dusts have encouraged studies to investigate treatment processes to render the material non-hazardous, and to possibly recover metal values. This research project was designed to examine the hydrometallurgical recovery of zinc from EAF dusts that have been treated by a double kiln fuming process. The test work consisted essentially of acidified brine leaching of the pelletized calcine to determine the influence of traditional conditions, such as acid concentration, temperature and agitation, plus the application …

Scour Evaluations Of Existing Bridges, Michael J. Fraher

United States Department of Transportation: Publications

The collapse of the Schoharie Creek Bridge on April 5, 1987 was a catastrophic instantaneous failure caused by scour of the bridge foundation. This particular collapse received wide media attention due to a home video of part of the collapse, the location on the New York State Thruway and the tragic loss of life. This particular collapse was not the first major interstate highway bridge failure attributed to scour of foundations. It is fair to say, however, that this was the event that finally brought stream stability and bridge scour issues to the attention of highway administrators and bridge engineers …

An Evaluation Of Highway Flood Damage Statistics, Jennifer Rhodes, Roy Trent

United States Department of Transportation: Publications

Hydraulic events result in thousands of incidents of property damage each year. The U. S. Army Corps of Engineers estimates that annual damage averages over $2 billion (CaE, 1991). Federal, state, and local agencies have set up emergency assistance programs to help pay these unusually heavy expenses. Despite the detail of the policies regulating such programs, a comprehensive database describing the causes and consequences of flood losses does not exist. In an effort to obtain clear and consistent statistics on highway related damage, the disaster files of the Federal Highway Administration's (FHWA) Emergency Relief (ER) Fund and the Federal Emergency …

Center For Computer And Information Sciences Application Package, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Doctor Of Science In Computer Information Systems 1992-1993 Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Doctoral Program In Computing Technology Specialization In Computer Education, Information Sciences, Training And Learning 1992-1993 Catalog, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Center For Computer And Information Sciences--Doctor Of Science In Computer Information Systems 1992-93, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Mixed‐Cation Oxide Powders Via Resin Intermediates Derived From A Water‐Soluble Polymer, Lone‐Wen ‐W Tai, Harlan U. Anderson, Paul A. Lessing

Materials Science and Engineering Faculty Research & Creative Works

Sub micrometer powders of complex oxides were prepared via resin intermediates based on a starch type of organic precursor. A commercially available water‐soluble starch derivative was (for the first time) used as the organic base for solution synthesis of ceramic powders. Calcination of the charred, fluffy, amorphous resins at a temperature below 600°C for 4 h yielded perovskite powders of Sr‐doped LaMnO₃ and Sr‐doped La(Fe,Co)O₃. Sr‐doped LaCrO₃ needed to be calcined above 750°C to ensure phase purity and to remove organic residue. Due to the low cost of starch derivatives, the process has the potential of …

The Risk Of Reliance On Perceived Risk, Frank B. Cross

RISK: Health, Safety & Environment (1990-2002)

Professor Cross's comment is closely related to the debate between Thompson and Valverde. Using examples that do not commonly appear in the "Risk" literature, he argues that: Giving weight to perceived Risk may seem liberal insofar as it gives more say to the "little guy," but giving perceived Risk too much weight could have distinctly illiberal social consequences.