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Employee Perceptions of Workplace Factors That Will Most Improve Their Performance

Performance Improvement Quarterly 1996年第2期9卷

作者： Peter J. Dean Martha Ray Dean Rebecca M. Rebalsky University of Tennessee Department Head for Human Resources Development at the University of Tennessee and editor of Performance Improvement Quarterly. He is Vice President of Research for the International Board of Standards for Training Performance and Instruction and is editor of Performance Engineering at Work. Mailing address: University of Tennessee 1215 W. Cumberland Avenue Rm 110 Knoxville TN 37996‐1900. Philadelphia College of Bible Extensive experience in design development implementation and evaluation of instruction performance improvement and management systems in the public and private sectors. She also teaches graduate education courses at Philadelphia College of Bible. Mailing address: Philadelphia College of Bible 200 Manor Avenue Langhorne PA 19047‐2990. E‐mail: 76173.1257@*** Penn State University at Great Valley Graduate of the Master of Management Program at Penn State University's Great Valley Campus. Her area of specialization is health care administration. Mailing address: Pennsylvania State University Great Valley Management Program 30 East Swedesford Road Malvern PA. 19355.

Training is often the performance improvement solution of choice, yet how often does the best training not yield performance improvement? There is a growing body of evidence that indicates that many times performance improvement can be achieved faster, cheaper, and better by altering factors in the workplace than by training. This article describes an activity designed to illustrate the importance of workplace factors in improving performance and a study that demonstrates its validity. Results of the study indicate that two‐thirds of the participants believed the environmental factors of information, resources, and incentives needed improving in order to enable them to improve their own performance.

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Kink Arrays and Solitary Structures in an Optically Biased Phase Transition

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Physical Review Letters 1995年第2期75卷 228-228页

作者： L. M. Pismen Department of Chemical Engineering Center for Research in Nonlinear Phenomena and Minerva Center for Nonlinear Physics of Complex Systems Technion–Israel Institute of Technology 32000 Haifa Israel

An interphase boundary may be immobilized due to nonlinear diffractional interactions in a feedback optical device. This effect reminds one of the Turing mechanism, with the optical field playing the role of a diffusive inhibitor. Two examples of pattern formation are considered in detail: arrays of kinks in 1D and solitary spots in 2D. In both cases, a large number of equilibrium solutions are possible due to the oscillatory character of diffractional interaction.

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CyberProf An Intelligent Human-Computer Interface for Asynchronous Wide Area Training and Teaching 4

CyberProf An Intelligent Human-Computer Interface for Asynch...

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4th International World Wide Web Conference: The Web Revolution, WWW 1995

作者： Huhler, Alfred Assad, Andrew M. Beckman Institute Center for Complex Systems Research the Physics Department University of Illinois at Urbana-Champaign 405 North Mathews Avenue UrbanaIL61801 United States Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign 1406 West Green Street UrbanaIL61801 United States

ISBN: (纸本)1565921690

We introduce CyberProf a robust softwarepackage which utilizes thefull capabilities ofa World Wide Web server as an intelligent human-computer interfacefor grading, creating, and presenting educational course materials. Students can solve course problems presented with text, graphics, animations, and sound on the Web and can receive instantfeedbackfrom a sophisticated grading package which makes use ofthe latest complex systems data analysis tools to handle ambiguous input in an intelligent manner. Fully integrated lecture notes and helpfiles are hyperlinked to assist the student in solving an exercise. Instructors can make use of built-in problem set and lecture notes editors to create an entire online course customizedfor their needs. Early results ofthe system arepromising. In thefirst university course in which CyberProf was used, class attendance rates were significantly higher, dropout rates were lower, and grade distributions were higher when compared tofiguresfrom the same course in previous semesters. © World Wide Web Conference: The Web Revolution, WWW 1995 - Conference Proceedings. All rights reserved.

关键词： Grading

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Application of function-to-platform mapping to space-based surveillance system architectural design

Application of function-to-platform mapping to space-based s...

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IEEE Conference on Aerospace Applications

作者： S. Petri P. Bumpus D. Bearden G. Coleman BESim System Engineering The Aerospace Corporation BESim Development Nichols Research Corporation Brilliant Eyes Program Office USAF Space and Missile Systems Center

An end-to-end integrated simulation of a space-based surveillance system, sponsored by the Air Force Brilliant Eyes (BE) System program Office (SPO), was developed at the National Test Facility (NTF) and Nichols research Corporation (NRC), Colorado Springs, Colorado. The simulation, called BESim, is sufficiently flexible and adaptable to be rapidly reconfigured to model various baseline architectural concepts and assess resulting system performance and resource allocation. The architecture independence is accomplished through "mappable" functions in an object-oriented framework. The feature, termed function-to-platform mapping (FPM) allows the user to distribute functions to various locations in the system. Subsequent impacts to system performance, communications and data-processing requirements, can be measured. FPM also allows functional component distribution through dynamic reconfiguration. This paper describes the FPM development philosophy and examples of FPM application to space-based surveillance system architectural design through analysis of communications load and message handling.< >

关键词： Surveillance Object oriented modeling Satellites Eyes Resource management Hardware Aerospace engineering Design engineering systems engineering and theory Missiles

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CyberProf: An Intelligent Human-Computer Interface for Asynchronous Wide Area Training and Teaching 4

CyberProf: An Intelligent Human-Computer Interface for Async...

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Proceedings of the Fourth International Conference on World Wide Web

作者： Alfred Hubler Andrew M. Assad Beckman Institute---Center for Complex Systems Research and the Physics Department University of Illinois at Urbana-Champaign Urbana IL USA Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana IL USA

ISBN: (纸本)9781565921696

We introduce CyberProf, a robust software package which utilizes the full capabilities of a World Wide Web server as an intelligent human-computer interface for grading, creating, and presenting educational course materials. Students can solve course problems presented with text, graphics, animations, and sound on the Web and can receive instant feedback from a sophisticated grading package which makes use of the latest complex systems data analysis tools to handle ambiguous input in an intelligent manner. Fully integrated lecture notes and help files are hyperlinked to assist the student in solving an exercise. Instructors can make use of built-in problem set and lecture notes editors to create an entire online course customized for their needs. Early results of the system are promising. In the first university course in which CyberProf was used, class attendance rates were significantly higher, dropout rates were lower, and grade distributions were higher when compared to figures from the same course in previous semesters.

关键词： CyberProf

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Improvement of convergence speed for subband adaptive digital filter using the multirate repeating method

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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE 1995年第10期78卷 37-45页

作者： Kiya, H Nishikawa, K Ashihara, K Faculty of Technology Tokyo Metropolitan University Hachioji Japan 192-03 Members Kiyoshi Nshikawa graduated in 1990 from the Department of Electrical Engineering Tokyo Metropolitan University where he completed the Master's Program in 1992 and affiliated with Nippon Steel Co. Computer Systems Laboratory. He was a Research Associate in 1993 in the Department of Elect. Inf. Eng. Tokyo Metropolitan University engaged in research onadaptive signal processing and information source coding. He is a member of the IEEE. Associate Member

The subband adaptive system, where the idea of the filter bank is applied to the adaptive filter, has a feature that a higher-order adaptation can be reduced to lower-order adaptations. The reduction of the order of the adaptive filter is related closely to the number of channels and the decimation ratio. The order of adaptive digital filter (ADF) is decreased greatly when the number of subbands is increased, and the decimation ratio is increased up to the maximum value. Then, however, the number of coefficient-updates per unit time is decreased, which results in the deterioration of the convergence Speed. From such a viewpoint, this paper discusses a method to improve the convergence speed, which is deteriorated in the subband adaptive system, due to the decimation. The idea of the proposed method is to utilize effectively the data which have been discarded in the decimation process and to improve the convergence speed. It is called the multirate repeating method. As the first step, the multirate repeating method is applied to the conventional subband adaptive system and the convergence speed is improved. Then a subband adaptive system is introduced in which the multirate repeating method can be utilized more effectively. As a result, a faster convergence is realized while retaining the ADF order-reduction effect, which is an advantage of the subband adaptive system.

关键词： adaptive signal processing subband adaptive system multirate repeating method rational decimation

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PARALLEL AND DISTRIBUTED TLM COMPUTATION WITH SIGNAL-PROCESSING FOR ELECTROMAGNETIC-FIELD MODELING

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INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS 1995年第3-4期8卷 169-185页

作者： SO, PPM ESWARAPPA, C HOEFER, WJR NSERC/MPR Teltech Research Chair in RF Engineering Department of Electrical and Computer Engineering University of Victoria Victoria British Columbia V8W 3P6 Canada Poman So received his B.Sc. degree in computer science and physics from the University of Toronto Toronto Onatario Canada in 1985. He obtained his B.A. Sc. and M.A.Sc. degrees in electrical engineering (summa cum laude) from the University of Ottawa Ottawa Ontario Canada in 1987 and 1989 respectively. Mr So was a research engineer in the University of Ottawa from January 1989 to October 1991 his research interests included CAD techniques of microwave circuits and numerical methods for electromagnetic wave modelling. He specialized in the development of electromagnetic engineering CAD software and successfully implemented a number of electromagnetic wave simulators based on the two-dimensional and three-dimensional transmission-line matrix methods. From August 1990 to February 1991 he accompanied Professor W. J. R. Hoefer to Rome Italy and Sophia Antiopolas France. During that time he implemented a parallel version of the 3D-TLM simulator for the CM-2 Connection Machine using C-Star and X Windows Library. He is a research engineer and a Ph.D. student at the University of Victoria Victoria British Columbia Canada. He ported the 2D- and 3D-TLM simulators to DECmpp 1200 massively parallel computer using MPL C and C++. He also combined OSA90/hope a commercially available microwave CAD program with a 2D-TLM simulation module for geometry optimization using the Datapipe technique of OSA90/hope. Recently he has developed a distributed client-server computing technique for the TLM method this technique could accelerate the TLM simulation by more than an order of magnitude. Channabasappa Eswarappa received the M.Tech. degree in electrical engineering from the Indian Institute of Technology Kanpur India in 1983 and Ph. D. degree from the University of Ottawa Canada in 1990. He worked as an Assistant Executive Engineer and later as

This paper describes the implementation of transmission-line matrix (TLM) method algorithms on a massively parallel computer (DECmpp 12000), the technique of distributed computing in the UNIX environment, and the combination of TLM analysis with Prony's method as well as with autoregressive moving average (ARMA) digital signal processing for electromagnetic field modelling. By combining these advanced computation techniques, typical electromagnetic field modelling of microwave structures by TLM analysis can be accelerated by a few orders of magnitude.

关键词： Mathematical models

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FINITE-ELEMENT ANALYSIS OF THE QUARTER SCALE ADVANCED DOUBLE-HULL DESIGN - COMMENTS

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NAVAL ENGINEERS JOURNAL 1995年第4期107卷 151-151页

作者： ACUNA, JM Peter Matic:is head of the Fracture Mechanics Section (Code 6382) at the Naval Research Laboratory in Washington D. C. He received a B.S. degree in Mechanical Engineering from the Illinois Institute of Technology and a Ph.D. in Applied Mechanics from Lehigh University. Prior to joining NRL he was associated with the Electric Boat Division of General Dynamics Corporation in Groton. Conn. His research interests include material constitutive behavior the mechanics of fracture structural integrity smart materials and complex systems theory applied to material damage modeling. In 1989 he received an NRL Alan Berman Publication Award and the ASNE “Jimmie” Hamilton Award

ABSTRACT The design of advanced unidirectionally stiffened double hull surface ships is motivated by economic, military, civilian and environmental concerns. Major concerns include economical producibility. reduced signature, enhanced survivability and damage resistance to grounding. Verification of structural analysis capabilities, identification of collapse mechanisms and evaluation of structural integrity are issues that need to be addressed. Congress established the Advanced Double Hull Technology Project following the Oil Pollution Act of 1990, and provided FY 92 and FY 93 funding to investigate double hull technology for naval surface ships and commercial application of ecologically sound bulk fuel carriers. As part of this project the Office of Naval research (ONR) tasked the Carderock Division of the Naval Surface Warfare Center (CD/NSWC) to evaluate the crash-worthiness of the double hull concept in stranding incidents. This work included a series of quarter-scale stranding experiments conducted at the National Institute of Standards and Technology (NIST). Finite element analysis was performed to demonstrate the accuracy of non-linear, large deflection numerical modeling by comparison with the experimental results. The Advanced Double Hull (ADH) design features longitudinal web stiffe-ners with an inner-outer hull spacing of 79 inches. In this investigation, a quarter scale model of a representative section of the hull with an inner-outer hull spacing of 18.5 inches was used to analyze stranding. The structural performance and load transfer mechanisms of the ADH quarter scale model during a simulated stranding event were the primary objectives of the analysis. In the stranding event, an object on the bottom of a harbor or shallow waterway was simulated by a spherically tipped conical penetrator. The penetrator initially contacted the outer hull. A 30 inch displacement of the penetrator was applied beyond the initial point of contact. Explicit finite element

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A DISTRIBUTED MEDIA ACCESS PROTOCOL FOR PACKET RADIO NETWORKS AND PERFORMANCE ANALYSIS .2. NETWORK SET-UP TIME AND DATA RATE

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INTERNATIONAL JOURNAL OF COMMUNICATION systems 1995年第1期8卷 49-63页

作者： POND, LC LI, VOK Communication Sciences Electrical Engineering Systems University of Southern California Los Angeles CA 90089-2565 U.S.A. Lawrence C. Pond received the M.Sc. and Ph.D. degrees in electrical engineering from the University of Southern California in 1983 and 1990 respectively. Dr. Pond is currently a scientist at Hughes Space and Communications Company having joined in 1980. He has worked in the fields of communication system design mobile communication network and spacecraft payload design. He is currently working on the development of satellite-based ATM transport and switching architectures for BISDN and Defense Information System Network amlications. Dr. Pond is a member of IEEE. Victor O. K. Li was born in Hong Kong in 1954. He received his SB SM and Sc.D. degrees in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology Cambridge Massachusetts in 1977 1979 and 1981 respectively. Since February 1981 he has been with the University of Southern California (USC) LOS Angeles California where he is Professor of Electrical Engineering and Director of the USC Communication Sciences Institute. He has published 150 technical papers and has lectured and consulted extensively around the world. His research interests include high-speed communication networks personal communication networks intelligent networks distributed databases queueing theory graph theory and applied probability. Dr. Li is very active in the Institute of Electrical and Electronic Engineers (IEEE) having been a member of the Computer Communications Technical Committee since 1983 and having served as Chairman from 1987–1989. He served as Chairman of the Los Angeles Chapter of the IEEE Information Theory Group from 1983–1985. He is the Steering Committee Chair of the International Conference on Computer Communications and Networks (IC3 N) General Chair of the 1st Annual IC3N held in San Diego California in June 1992 General Chair and Technical Program Chair of the 4th IEEE Workshop on Comp

In this, the second part of a two-part paper, the required time for establishing a mobile packet radio network using the virtual circuit and time division multiple access protocol developed in Part 1 is analysed. Tools are developed to determine the virtual circuit and network set-up times in terms of the channel bandwidth allocated to establish and maintain the network. The tools are then extended to include the effects of user mobility. Then these results are combined with the network capacity results of Part 1 to analyse the trade-off between the data rate and set-up time of the network. Next a hierarchical architecture is proposed and the network data rate versus set-up time trade-off of this architecture is analysed using these tools. This architecture is shown to both provide a higher data rate and establish faster than flat networks of the same number of nodes.

关键词： PACKET RADIO NETWORK EPLRS DISTRIBUTED NETWORK TDMA VIRTUAL CIRCUITS MULTIHOP NETWORK BOUNDED DELAY MOBILITY NETWORK SET-UP TIME HIERARCHICAL NETWORK NETWORK DATA RATE

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A Sophisticated Ground Water Analytical Tool

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Groundwater Monitoring & Remediation 1995年第2期15卷 134-139页

作者： Tonjes, David J. Heil, James H. Black, John A. David J. Tonjes is a doctoral candidate in coastal oceanography at the Marine Sciences Research Center University at Stony Brook through its Waste Management Institute (Waste Management Institute Marine Sciences Research Center University at Stony Brook 11794–5000). Under a grant from the Town Board he is a technical adviser to the commissioner of waste management of the town of Brookhaven New York in solid waste planning regulatory compliance and environmental site monitoring. Tonjes has a B.A. in liberal arts from St. John's College an M.S. in computer science from New York Institute of Technology and an M.S. in technological systems management from the University at Stony Brook. James H. Heil is commissioner of waste management for the town of Brookhaven (Department of Waste Management Town of Brookhaven 3233 Rte. 112 Medford NY 11763). Heil received a B.S. from Manhattan College and an M.S. from New York University in civil engineering and is a licensed professional engineer in New York. He is a former president of the New York State Solid Waste Management Association. John A. Black is the coordinator of the environmental science program at Suffolk County Community College (Environmental Science Program Suffolk County Community College Selden NY 11784). He is currently the chair of the Ecology Committee of the Pine Barrens Advisory Committee for Suffolk County and is a member of the Suffolk County Pine Barrens Review Commission. Black received a B.S. in chemistry from Adephi University an M.S. in public administration from the University at Stony Book an M. S. from Hofstra University and a Ph. D. from Adlephi in marine sciences.

Stiff diagrams arc a multivariate method of analysis used to describe the chemical state of ground water. The use of Stiff diagrams to describe multiconstituent contamination sites, such as landfills, has distinct advantages over single constituent analyses. Problems associated with traditional Stiff diagram analyses, such as diagram attentuation, can be addressed by allowing the scale of the diagram to vary with the ionic strength of the analyzed sample. The use of these sliding scale Stiff diagrams reveals the chemical slate of the ground water over wide ranges of constituent concentrations and thus allows for sensitive and sophisticated depictions of complicated contamination sites in a fashion that is extremely difficult to replicate with single constituent analyses. This approach has possible applications for understanding and tracing the mixing and chemical changes in uncontaminated settings. Copyright © 1995, Wiley Blackwell. All rights reserved

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