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1996

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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

The Threshold Value Of A Quality Index For Formation Of Cellular Manufacturing Systems, Hamid Seifoddini, Manocher Djassemi Dec 1996

The Threshold Value Of A Quality Index For Formation Of Cellular Manufacturing Systems, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

The superiority of cellular manufacturing to job shop manufacturing has been questioned by a number of simulation studies. The initial structure of the machine-part matrix seems to play an important role in the failure of cellular manufacturing systems in these studies. In this paper a grouping measure called 'quality index - QI' will be used to evaluate the relationship between the quality of a machine-part matrix and the performance of the corresponding cellular manufacturing system. A simulation study will be conducted to demonstrate how the procedure can be used to determine the threshold value for QI beyond which the cellular manufacturing ...


Acuta Enews December 1996, Vol. 25, No. 12 Dec 1996

Acuta Enews December 1996, Vol. 25, No. 12

ACUTA Newsletters

In This Issue

Fifth Annual Institutional Excellence Awards Competition

ACUTA News will have a new look

Welcome New Members

President's Message

Emergency Phone Provide Security

DC at a Glance

Fiber Optic Video Systems for Campus Networking

Campus News Briefs

Industry Insights

From ACUTA Headquarters


Arts, Computers And Artificial Intelligence, Sol Neeman Ph.D. Nov 1996

Arts, Computers And Artificial Intelligence, Sol Neeman Ph.D.

Engineering Studies Faculty Publications and Creative Works

Science and art seem to belong to different cultures. Science and technology, mainly the products of the intellect, use terminology and vocabulary that are concise and well defined. In contrast, in artistic expression, ambiguity is a powerful component. Still the relationship between these two different categories of human activity is interesting and fascinating. In this paper, a general comparison of these two disciplines will be introduced. Then the possibility of mechanical creation of art using computers and artificial intelligence will be discussed. This will be followed by two techniques which are used to create poetry and music. First, a statistical ...


Preparing The Leaders For Mechatronics Education, Sema E. Alptekin Nov 1996

Preparing The Leaders For Mechatronics Education, Sema E. Alptekin

Industrial and Manufacturing Engineering

Mechatronics is the synergetic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and processes. There is a need to develop interdisciplinary programs in Mechatronics that better prepare our graduates to design, build, and operate the products and systems of today and tomorrow. To address this need, National Science Foundation funded a project entitled "Preparing the Leaders for Mechatronics Education" undertaken by Cal Poly in 1995 - 1996. In this paper, the activities that took place during this two-year program is outlined. Several courses and course modules have already been developed and implemented by the ...


Acuta Enews November 1996, Vol. 25, No. 11 Nov 1996

Acuta Enews November 1996, Vol. 25, No. 11

ACUTA Newsletters

In This Issue

Univ. of Idaho: Homepage Sweet Homepage

Institutional Excellence Award

Committee Member Approved

More Angles for 809 Fraud

Welcome New Members

President's Message

The '90s: New Challenges for Telecom

DC at a Glance

Campus News Briefs

Industry Insights


Personal Rapid Transit: An Unrealistic System, Vukan R. Vuchic Nov 1996

Personal Rapid Transit: An Unrealistic System, Vukan R. Vuchic

Departmental Papers (ESE)

The concept of "Personal Rapid Transit," or PRT, was conceived nearly 30 years ago. It is supposed to have an extensive network of elevated guideways--light concrete or steel beams on columns--with stations every 2-3 blocks. Small, electrically powered vehicles, with 3-5 seats, would carry passengers automatically to any station in the network.


Sensitivity Analysis In Cellular Manufacturing System In The Case Of Product Mix Variation, Hamid Seifoddini, Manocher Djassemi Oct 1996

Sensitivity Analysis In Cellular Manufacturing System In The Case Of Product Mix Variation, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

In this paper, performance measures such as mean flow time and work-in-process inventories will be used to determine the changes in the performance of a cellular manufacturing system due to product mix variations.


Acuta Enews October 1996, Vol. 25, No. 10 Oct 1996

Acuta Enews October 1996, Vol. 25, No. 10

ACUTA Newsletters

In This Issue

President's Message

FlexSourcing

Desk Top Video

Overheard on the Listserve

From ACUTA Headquarters


Improving The Performance Of Cellular Manufacturing By A Dynamic Part Assignment Approach, Hamid Seifoddini, Manocher Djassemi Sep 1996

Improving The Performance Of Cellular Manufacturing By A Dynamic Part Assignment Approach, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

In this paper, a simple dynamic part assignment (DPA) procedure is introduced and its effects on the performance of cellular manufacturing systems is evaluated. In this procedure rerouting of parts among machine cells is allowed for better machine utilization. Three data sets are used to compare the performance of manufacturing systems under job shop and cellular manufacturing when DPA is employed. The results of simulation runs indicate that the proposed DPA method improves the performance of cellular manufacturing significantly by reducing the congestion in machine cells with long waiting lines.


Acuta Enews September 1996, Vol. 25, No. 9 Sep 1996

Acuta Enews September 1996, Vol. 25, No. 9

ACUTA Newsletters

In This Issue

From the President

New Legislation

User Group Reports

Changes Come to Campus Directories

From ACUTA Headquarters


A Comparison Of Traffic Models: Part 1, Framework, Hong Lo, Wei-Hua Lin, Lawrence Liao, Elbert Chang, Jacob Tsao Aug 1996

A Comparison Of Traffic Models: Part 1, Framework, Hong Lo, Wei-Hua Lin, Lawrence Liao, Elbert Chang, Jacob Tsao

Faculty Publications

This report defines a framework for comparing dynamic traffic models. It emphasizes four dimensions: functionality, traffic dynamics, route choice dy namics, and overall network performance. The first dimension compares the models through a check-list of model functions. Regarding the last three comparison dimensions, a total of five networks and twelve scenarios are defined. These test scenarios are designed to accentuate model properties and differences. Also included in the report are a list of performance measures for comparison purpose, and a discussion of the interpretation of results.


Dynamic Traffic Assignment For Automated Highway Systems: A Two-Lane Highway With Speed Constancy, H.-S. Jacob Tsao Aug 1996

Dynamic Traffic Assignment For Automated Highway Systems: A Two-Lane Highway With Speed Constancy, H.-S. Jacob Tsao

Faculty Publications

Dynamic traffic assignment through analytical modeling and optimization has been widely accepted by the IVHS R&D community as a promising traffic control tool for understanding and relieving traffic congestion on conventional highways and city streets. Due to the completely controlled nature of AHS traffic, dynamic assignment of AHS traffic is even more promising. One added dimension of complexity associated with AHS dynamic traffic assignment is lane assignment. Lane changes, for fully utilizing AHS capacity or for exiting, incur disturbances to and hence reduction of longitudinal flow. Intelligent lane assignment is necessary to ensure a high rate of successful exiting ...


Acuta Enews August 1996, Vol. 25, No. 8 Aug 1996

Acuta Enews August 1996, Vol. 25, No. 8

ACUTA Newsletters

In This Issue

Silver Anniversary Celebration 25 Years of Excellence

President's Message

Chicago Presentations Inspire, Inform, and Entertain

Executive Director

DC at a Glance

Record Number of Exhibitors in Chicago

From ACUTA Headquarters


Acuta Enews July 1996, Vol. 25, No. 7 Jul 1996

Acuta Enews July 1996, Vol. 25, No. 7

ACUTA Newsletters

In This Issue

New Board of Directors Prepares for 1996-97

ACUTA Announces Quarterly Journal

President's Message

Do You Tax Student Long Distance Bills?

DC at a Glance

University of Washington Fills Service Niche with T1 Channel Banks

How to Subscribe to ACUTA Listserves

Everyone Wants Voice Mail

Campus New Briefs

Welcome New Members

Industry Insights


Acuta Enews June 1996, Vol. 25, No. 6 Jun 1996

Acuta Enews June 1996, Vol. 25, No. 6

ACUTA Newsletters

In This Issue

From the President

Virtual LAN at Univ. of Mississippi

DC at a Glance

Internet Phone

From ACUTA Headquarters


A New Grouping Measure For Evaluation Of Machine-Component Matrices, Hamid Seifoddini, Manocher Djassemi May 1996

A New Grouping Measure For Evaluation Of Machine-Component Matrices, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

The machine-component matrix is the main input to most machine-component grouping models used in cellular manufacturing. A number of measures have been developed for performance evaluation of machine-component grouping algorithms. In this paper, the relationship between these measures and the performance of the corresponding cellular manufacturing system is evaluated and a new grouping measure is developed which is more consistent in predicting the suitability of a manufacturing system for cellular manufacturing.


Acuta Enews May 1996, Vol. 25, No. 5 May 1996

Acuta Enews May 1996, Vol. 25, No. 5

ACUTA Newsletters

In This Issue

From the President

DC at a Glance

Letter to FCC

High-Tech Crime

From ACUTA Headquarters


Acuta Enews April 1996, Vol. 25, No. 4 Apr 1996

Acuta Enews April 1996, Vol. 25, No. 4

ACUTA Newsletters

In This Issue

From the President

Pasadena Community College

Port by Every Pillow at WCU

Multi-Media at Sewanee

DC at a Glance

From ACUTA Headquarters


Acuta Enews March 1996, Vol. 25, No. 3 Mar 1996

Acuta Enews March 1996, Vol. 25, No. 3

ACUTA Newsletters

In This Issue

From the President

Seeking a Wireless Solution

DC at a Glance

Telecom & Leg/Reg Listserves

From ACUTA Headquarters


Constraints On Initial Ahs Deployment And The Concept Definition Of A Shuttle Service For Ahs Debut, H.-S. Jacob Tsao Feb 1996

Constraints On Initial Ahs Deployment And The Concept Definition Of A Shuttle Service For Ahs Debut, H.-S. Jacob Tsao

Faculty Publications

The concept of automated highway system (AHS) was motivated primarily by its potential for large capacity and safety gains without requiring significant right-of-way acquisition. However, highway automation involves a multitude of design options as well as systems issues. Compounded by the crucial dimension of evolving the current highway system towards the mature AH& there exist a large number of possible evolutionary paths to AHS. Perhaps due to the immense complexity, little attention has been paid to the evolution dimension.Particularly important and difficult in defining a deployment sequence is the very first step,i.e. the first user service involving ...


Stage Definition For Ahs Deployment And An Ahs Evolutionary Scenario, H.-S. Jacob Tsao Feb 1996

Stage Definition For Ahs Deployment And An Ahs Evolutionary Scenario, H.-S. Jacob Tsao

Faculty Publications

The concept of automated highway systems (AHS) as a means to solve the fast-worsening highway congestion problem has received renewed attention recently. Pros and cons of various mature AHS have been a subject of intense study. However, such discussions are nothing but intellectual exercises unless the issue of how to evolve the current highway systems towards these mature AHS can be resolved. There exist a large number of different possible mature AHS. The additional dimension of evolution leads to an even larger number of possible evolutionary scenarios. This paper proposes an approach to defining evolutionary scenarios and illustrates it with ...


Acuta Enews February 1996, Vol. 25, No. 2 Feb 1996

Acuta Enews February 1996, Vol. 25, No. 2

ACUTA Newsletters

In This Issue

From the President

The Michelangelo Virus

DC at a Glance

UCLA Switches on Its 6800

From ACUTA Headquarters


Deregulation: A Return To The Primitive | Deregulacija: Povratak Načetak, Vukan R. Vuchic Feb 1996

Deregulation: A Return To The Primitive | Deregulacija: Povratak Načetak, Vukan R. Vuchic

Departmental Papers (ESE)

No abstract provided.


Haccp As A Regulatory Innovation To Improve Food Safety In The Meat Industry, Laurian J. Unnevehr, Helen H. Jensen Feb 1996

Haccp As A Regulatory Innovation To Improve Food Safety In The Meat Industry, Laurian J. Unnevehr, Helen H. Jensen

CARD Working Papers

Industrial engineers in the food-processing industry have developed the Halyard Analysis Critical Control Point (HACCP) system as a preventive approach to ensuring the safety of meat and poultry products. This paper discusses both the origins of HACCP as an engineering concept and the economics of HACCP as a regulatory tool. The authors contend that the economics literature has not adequately explored the benefits from prevention, particularly when the costs of hazard detection are high and the exact benefits of a particular standard are uncertain but potentially large.


Incorporating Matlab's Signal Processing Toolbox Into A Dsp Course At An Undergraduate E.E. Program, Sol Neeman Ph.D. Jan 1996

Incorporating Matlab's Signal Processing Toolbox Into A Dsp Course At An Undergraduate E.E. Program, Sol Neeman Ph.D.

Engineering Studies Faculty Publications and Creative Works

This paper provides some suggestions for incorporating MATLAB's Signal Processing Toolbox into a DSP course. Often, in a DSP course, students have difficulties understanding abstract and non-intuitive concepts and seeing their relevance to the practical part of their curriculum. The tools offered by MATLAB's Signal Processing Toolbox, can help to make these concepts more tangible and provide a perspective for students. Some basic tools relevant to an undergraduate DSP course will be introduced, including examples of tool use and graphic results. The tools presented will be applied in the areas of synthesis and analysis of signals, FFT computation ...


Linear Programming With Inequality Constraints Via Entropic Perturbation, Jacob Tsao, Shu-Cherng Fang Jan 1996

Linear Programming With Inequality Constraints Via Entropic Perturbation, Jacob Tsao, Shu-Cherng Fang

Faculty Publications

A dual convex programming approach to solving linear programs with inequality constraints through entropic perturbation is derived. The amount of perturbation required depends on the desired accuracy of the optimum. The dual program contains only non-positivity constraints. An ϵ-optimal solution to the linear program can be obtained effortlessly from the optimal solution of the dual program. Since cross-entropy minimization subject to linear inequality constraints is a special case of the perturbed linear program, the duality result becomes readily applicable. Many standard constrained optimization techniques can be specialized to solve the dual program. Such specializations, made possible by the simplicity of ...


Acuta Enews January 1996, Vol. 25, No. 1 Jan 1996

Acuta Enews January 1996, Vol. 25, No. 1

ACUTA Newsletters

In This Issue

From the President

SIUE $1.1 Million Phone Scam

NUI Implements ADSI Technology

Sewanee Campus Hooked up to Info Highway

ACUTA Listserves

From ACUTA Headquarters


Toward A Systems Theory For The Composition Of Dynamically Dexterous Robot Behaviors, R. R. Burridge, A. A. Rizzi, Daniel E. Koditschek Jan 1996

Toward A Systems Theory For The Composition Of Dynamically Dexterous Robot Behaviors, R. R. Burridge, A. A. Rizzi, Daniel E. Koditschek

Departmental Papers (ESE)

We report on our efforts to develop robot controller composition techniques in the context of dexterous “batting” maneuvers. A robot with a flat paddle is required to strike repeatedly at a falling ball until it is brought to zero velocity at a a specified position. The robot’s workspace is cluttered with obstacles that disconnect the freespace formed when the ball and paddle remain in contact - the machine is forced to “let go” for a time in order to bring the ball to the desired state. The controller compositions that we create will guarantee that a ball introduced in the ...


Lrt - A Dynamic Transit Mode With Continuing Innovations, Vukan R. Vuchic Jan 1996

Lrt - A Dynamic Transit Mode With Continuing Innovations, Vukan R. Vuchic

Departmental Papers (ESE)

When increasing use of the private automobile intensified street traffic congestion, cities, generally pursued one or two types of policies. The "Car accommodation policy" was aimed 'primarily at accommodating the car and highway traffic, neglecting all other modes. The "Balanced transportation policy" was directed to achievement of a co-ordinated system of different transportation modes.

The former group of cities eliminated streetcars I tramways. The latter upgraded them through numerous innovations, into Light Rail Transit - LRT. The intermediate transit modes, which LRT represents, have been increasingly found effective as a solution for the cities which need better services than buses on ...


Rapporto Di Vukan Vuchic In Linea C: La Scelta Tecnologica: Un'expertise Internazionale, Vukan R. Vuchic Jan 1996

Rapporto Di Vukan Vuchic In Linea C: La Scelta Tecnologica: Un'expertise Internazionale, Vukan R. Vuchic

Departmental Papers (ESE)

Tra le opere previste per ii giubileo del 2000, Cotral ha progettato di costruire la terza linea di metropolitana di Roma, linea C. L'ipotesi avanzata e di realizzare tale linea utilizzando la tecnologia ferroviaria standard, aggiornata ai suoi ultimi sviluppi tecnologici. In seguiLo, altri soggetti hanno proposto di modificare questa impostazione, sugge­rendo principalmente quanto segue:

  • impiego di un sistema a guida automatizzata (Automated Guided Transit, Agt, come Val, Kawasaki, Westinghouse sistemi Utdc) invece del sistema ferroviario standard. Tra questi sistemi e posto in particolare rilievo ii Val;
  • realizzazione della linea, attraverso un contratto chiavi in mano, da parte ...