Operations Research, Systems Engineering and Industrial Engineering Commons^™

Acuta Enews December 1993, Vol. 22, No. 12

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Board Report

President's message

Telecom talks $$$ at UNM

US West to test high speed transmission

Big MAN on campus

Student toll fraud

A Robust Aggregation Approach To Simplification Of Manufacturing Flow Line Models, Paul Savory

Department of Industrial and Management Systems Engineering: Faculty Publications

One of the more difficult tasks facing a modeler in developing a simulation model of a discrete part manufacturing system is deciding at what level of abstraction to represent the resources of the system. For example, questions about plant capacity can be modeled with a simple model, whereas questions regarding the efficiency of different part scheduling rules can only be answered with a more detailed model. In developing a simulation model, most of the actual features of the system under study must be ignored and an abstraction must be developed. If done correctly, this idealization provides a useful approximation of …

Acuta Enews November 1993, Vol. 22, No. 11

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In This Issue

Board Report

President's message

TASA commissions

Numbering plan means net manager pains

21st Century Technology

Toll Fraud

A Robust Aggregation Approach To Simplification Of Manufacturing Flow Line Models, Paul Savory

Industrial and Management Systems Engineering: Presentations

One of the more difficult tasks facing a modeler in developing a simulation model of a discrete part manufacturing system is deciding at what level of abstraction to represent the resources of the system. For example, questions about plant capacity can be modeled with a simple model, whereas questions regarding the efficiency of different part scheduling rules can only be answered with a more detailed model. In developing a simulation model, most of the actual features of the system under study must be ignored and an abstraction must be developed. If done correctly, this idealization provides a useful approximation of …

Set-Up Saving Schemes For Printed Circuit Boards Assembly, Oded Z. Maimon, Ezey M. Dar-El, Tali F. Carmon

Industrial and Manufacturing Engineering

Focusing on a basic printed circuit board (PCB) assembly line configuration characterized by very long set-up times, we examine two scheduling methods that can significantly reduce the set-up. Both methods -the Grouped Set-Up (GSU) method that has been recently introduced in the literature and the Sequence Dependent Scheduling (SDS) method, which has not been studied in this context -are based on component commonality among PCB types. Using the typical traditional scheduling method as a benchmark, the GSU and the SDS methods are compared in terms of three performance measures: line throughput, average work-in-process (WIP) inventory level, and implementation complexity. Guidelines …

Acuta Enews October 1993, Vol. 22, No. 10

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E-mail

President's message

Data Comm Project at Delaware Tech

User Groups Meet at Conference

21st Century Technology

Staff Report

A Dynamic Part Assignment Procedure In Machine Cell Formation, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

A major contributing factor to the under utilization of machines in cellular manufacturing is the development of long queues in front of some machines in machine cells. This paper presents a procedure which identifies such machines and redistributes their loads to alternative machines whenever feasible.

Integration Of Simulation Modeling And Computer Aided Production Management In Computer Integrated Enterprise, Emine Persentili, Sema E. Alptekin

Industrial and Manufacturing Engineering

Designing efficient and integrated manufacturing systems is the first step in attaining computer integrated enterprises (CIE). Integration of planning and implementation phases of manufacturing is essential for taking full advantage of the CIE. In order to design reliable and efficient manufacturing systems, the designers must consider the impacts of planning decisions made by computer aided production management (CAPM) modules on implementations held in manufacturing cells. This paper focuses on two issues. The first issue is importance and necessity of integrating CAPM modules with manufacturing cells. The second issue includes major features of the object-oriented approach and their relevance to our …

Acuta Enews September 1993, Vol. 22, No. 9

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Emergency phones

President's message

FCC opens up local loop

CWRU cuts phone bill by 20%

Staff report

Acuta Enews August 1993, Vol. 22, No. 8

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Interview with Luther Robb

President's Message

Paradigms & Paradoxes

Total Quality Management

Super Schools

Win-Win Relationships

21st Century Technology

Executive Director's Message

Acuta Enews July 1993, Vol. 22, No. 7

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Gain-share at Wake Forest

President's Message

North American Numbering Plan

Toll Fraud Checklist

Staff Report

Acuta Enews June 1993, Vol. 22, No. 6

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Telemedicine

Vancouver Review

Economy at Turning Point

Yale Meridian Upgrade

Executive Director's Message

A Probabilistic Model And A Software Tool For Avcs Longitudinal Collision/Safety Analysis, H.-S. Jacob Tsao, Randolph Hall

Faculty Publications

This paper develops a probabilistic model and a software tool for analyzing longitudinal collision/safety between two automated vehicles. The input parameters are the length of the gap between the two vehicles, the common speed prior to the failure, the reaction delay of the following vehicle and a bivariate pint distribution of the deceleration rates of the two vehicles. The output includes the probability of a collision and also the probability distribution of the relative speed at collision time.We will use this model to compare the safety consequences associated with the platooning and "free-agent" vehicle-following rules. We will also demonstrate that …

Acuta Enews May 1993, Vol. 22, No. 5

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In This Issue

Call for Nominations page 2

President's Message page 3

MHEC $aves with Virtual Private Network page 4

Board of Directors Meeting page 5

Tireed Dues page 5

Toll Fraud Takes Aim page 6

Infrastructure page 7

Toll Fraud Checklist page 8

Will My Cellular Phone Fry My Brain? page 9

Executive Director's Message page 11

Acuta Enews April 1993, Vol. 22, No. 4

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TQM at Univeristy of Kansas page 2

President's Message page 3

Kent State Meets ADA Requirements page 4

Remembering Dorothy Heinecke page 7

Toll Fraud & Telabuse page 8

NATA Addresses E911 Issue page 9

Executive Director's Message page 11

Acuta Enews March 1993, Vol. 22, No. 3

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CUPA Salary Survey page 2

Presidents Message page 3

Tampa Review: Voice Processing at lU page 4

Tampa Review: Auto Attendants page 7

PBX Toll Fraud Prevention Checklist page 8

Markey Addresses Communications infrastructure page 9

Tampa Review: Voice Processing Partnerships page 10

Executive Director's Message page 11

Acuta Enews March 1992, Vol. 21, No. 3

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OSP violators fined

President's column

Non-dominant carriers face tariffs

Resource Manager joins staff

Acuta Enews February 1993, Vol. 22, No. 2

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Region Director Nominations

President's column

Institutional Excellence Award

Drew Uinv. Voice Mail

New Publications Editor

Miami Univ. Voice Mail

Tampa Exhibits Review

Executive Director

Introduction To Intellisim 2.0, Paul Savory

Department of Industrial and Management Systems Engineering: Faculty Publications

IntelliSIM is a prototype for a new generation of knowledge-based simulation tool that has been developed by the Systems Simulation Laboratory at Arizona State University. This tool is a computer environment that allows non-simulation trained modelers to predict the performance of a manufacturing system for which the necessary data is available. The system provides predictive data on such items as throughput time, queue levels, equipment utilization, reactions to machine failures, etc. With IntelliSIM, the benefits of discrete-event simulation can be exploited without requiring the high level of expertise necessary to successfully conduct a sound simulation study. The approach offered with …

Decision-Support Tools For Transferring Am/Fm/Gis To Small Communities, Steven W. Mccrary, Colin Othniel Benjamin, Peter J. Schmidt

Engineering Management and Systems Engineering Faculty Research & Creative Works

This paper examines several decision-support tools for transferring AM/FM/GIS technology to small communities. The term Computer-Assisted Spatial Information Systems (CASIS) provides a basis for a systematic categorization and definition of AM/FM/GIS systems that will serve to enhance small communities' understanding of these technologies for future decisions. The acronym CASIS includes such areas as database-management systems, automated mapping/facilities management/geographic information systems (AM/FM/GIS), and computer-aided drafting (CAD). Further, this paper reports the highlights of a survey that assesses the theory-practice gap in AM/FM/GIS usage among very small local government agencies. The survey uncovered an existing theory-practice gap: A, slow rate of system …