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1997

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Articles 1 - 30 of 57

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

A Study To Analyze And Improve Mechanical And Electro-Mechanical Designs Using Design For Quality Manufacturability (Dfqm) Technique, Bhavani P. Veerapaneni Dec 1997

A Study To Analyze And Improve Mechanical And Electro-Mechanical Designs Using Design For Quality Manufacturability (Dfqm) Technique, Bhavani P. Veerapaneni

Theses

The competitive nature of modern manufacturing demands that an innovative approach be used to build advanced and robust designs. Shortening the product development time, which is the period from initial design to full production, is a priority to most manufacturers today. Design for Quality Manufacturability (DFQM) is a methodology to address manufacturing / assembly quality issues during product design. As a consequence DFQM helps shorten the product development time.

The DFQM methodology addresses the issue of quality manufacturability (QM) - the likely hood that defects will occur during the manufacture of a product in a standard plant. The DFQM architecture identifies a ...


Determination Of A Flexibility Range For Cellular Manufacturing Systems Under Product Mix Variations, Hamid Seifoddini, Manocher Djassemi Dec 1997

Determination Of A Flexibility Range For Cellular Manufacturing Systems Under Product Mix Variations, Hamid Seifoddini, Manocher Djassemi

Industrial Technology and Packaging

One of the underlying assumptions in cellular manufacturing is that product mix is relatively stable over time. In this paper, a procedure for the sensitivity analysis of the performance of a cellular manufacturing system with respect to changes in the product mix is presented and a flexibility range representing the capability of the system in dealing with these changes is determined using simulation modelling. The simulation results in this study show that as the changes in the product mix increase the superiority of the performance of the cellular manufacturing system to the corresponding job shop system diminishes.


Acuta Enews December 1997, Vol. 26, No. 12 Dec 1997

Acuta Enews December 1997, Vol. 26, No. 12

ACUTA Newsletters

In This Issue

Sixth Annual Institutional Excellence Awards Competition

Slamming on the Rise

President's Column

Slamming

Board Report

A Great Seminar

Board Approves New Appointments

Meet Me at.... UM

Technology Timetable

On the Move

1998 ACUTA Events

Spotlight

DC at a Glance

Journal Editorial Calendar for 1998

Welcome New Members


Combining Multi-Attribute Utility And Geographic Information For Boundary Decisions: An Application To Park Planning, Jeffrey Keisler, Ronald Sundell Nov 1997

Combining Multi-Attribute Utility And Geographic Information For Boundary Decisions: An Application To Park Planning, Jeffrey Keisler, Ronald Sundell

Jeffrey Keisler

The quality and value of an area depend primarily on what is found within
its designated boundaries. To determine the value of such areas in terms of boundaries,
we have developed a methodology for integrating multi-attribute utility functions with
spatial analysis so that desirable, or appropriate, boundaries can be determined on the
basis of the goals and objectives for the park. The key to successful evaluation is the
development of measures for what decision makers value, rather than merely using
what is easily measured. In a detailed example for planning of national parks, the
fundamental objectives are conservation and societal ...


Acuta Enews November 1997, Vol. 26, No. 11 Nov 1997

Acuta Enews November 1997, Vol. 26, No. 11

ACUTA Newsletters

In This Issue

Second Annual ACUTA Student Paper Competition

SLCC Telecom Bails Out

Board Report

SLCC

President's Column

Negotiating a Wireless Contract

Seminar Looks at Networks, Legislative & Regulatory Issue

Is There a Back Door to Your Long Distance?

DC at a Glance

Welcome New Members

Rat Wire Schools

Spotlight


A Decision Support System For The Equipment Selection Of Robotic Manufacturing Cells, Lars Johan Resare Oct 1997

A Decision Support System For The Equipment Selection Of Robotic Manufacturing Cells, Lars Johan Resare

Theses

Considering the principles of concurrent engineering, a Decision Support System (DSS) is developed to aid in the equipment selection of robotic manufacturing cells. The objective is to synchronously and simultaneously select proper equipment for the cell to provide efficient performance, subject to operational and budgetary constraints.

The DSS consists of several modules, including a data base that houses the specifications of equipment available in the market place, a first cut selection module, and an optimization engine. In its development, the optimization scheme utilizes analytical models and algorithms that capture different sources of variability in production, such as tolerances, clearances and ...


Acuta Enews October 1997, Vol. 26, No. 10 Oct 1997

Acuta Enews October 1997, Vol. 26, No. 10

ACUTA Newsletters

In This Issue

Marketing Ethernet at Mizzou

Board Report

President's Message

Maximizing Call Center Potential

Welcome New Members

ACUTA Committees at Work

Spotlight

Mizzou

Marketing Committee Needs You!

Lisa Cheshire, CMP

Semer Chairs ASAE Technology Section

DC at a Glance

ACUTA Event Calendar

"Telco Network Whale"


Modeling And Comparison Of Wormhole Routed Mesh And Torus Networks, Ronald I. Greenberg, Lee Guan Oct 1997

Modeling And Comparison Of Wormhole Routed Mesh And Torus Networks, Ronald I. Greenberg, Lee Guan

Computer Science: Faculty Publications and Other Works

2D-mesh and torus networks have often been proposed as the interconnection pattern for parallel computers. In addition, wormhole routing has increasingly been advocated as a method of reducing latency. Most analysis of wormhole routed networks, however, has focused on the torus and the broader class of k-ary n-cubes to which it belongs. This paper presents a performance model for the wormhole routed mesh, and it compares the performance of the mesh and torus based on theoretical and empirical analyses.


Acuta Enews September 1997, Vol. 26, No. 9 Sep 1997

Acuta Enews September 1997, Vol. 26, No. 9

ACUTA Newsletters

In This Issue

Telecom Goes Marketing

Board Report

President's Message

Marketing Telecom

Thanks to Sprint for Sponsoring Directory

User Groups Meet in Atlanta and Online

Resource Library Update

Last Call for Directory Updates!

On the Move....

Guide to Distance Learning Available

Internet Call Manager

Spotlight

DC at a Glance

Welcome New Members

ACUTA Event Calendar


Acuta Enews August 1997, Vol. 26, No. 8 Aug 1997

Acuta Enews August 1997, Vol. 26, No. 8

ACUTA Newsletters

In This Issue

26th Annual Conference: Highlights from Atlanta

Board Report

President's Message

Rains Came Down, Floods Came Up

Faster Internet Access Over Existing Wiring

Spotlight

Directory Update

Welcome New Members

DC at a Glance

ACUTA Event Calendar

Instant Info


An Improved Analytical Model For Wormhole Routed Networks With Application To Butterfly Fat-Trees, Ronald I. Greenberg, Lee Guan Aug 1997

An Improved Analytical Model For Wormhole Routed Networks With Application To Butterfly Fat-Trees, Ronald I. Greenberg, Lee Guan

Computer Science: Faculty Publications and Other Works

A performance model for wormhole routed interconnection networks is presented and applied to the butterfly fat-tree network. Experimental results agree very closely over a wide range of load rate. Novel aspects of the model, leading to accurate and simple performance predictions, include (1) use of multiple-server queues, and (2) a general method of correcting queuing results based on Poisson arrivals to apply to wormhole routing. These ideas can also be applied to other networks.


Dynamic Stability Of Two Tractor Front-End Loader Systems, Michael J. Bader, Linus R. Walton, Larry G. Wells Jul 1997

Dynamic Stability Of Two Tractor Front-End Loader Systems, Michael J. Bader, Linus R. Walton, Larry G. Wells

Biosystems and Agricultural Engineering Faculty Publications

A one-quarter scale model tractor and loader were designed, fabricated, and used in an experiment to evaluate two tractor-loader configurations relative to stability using roll angle as the means of assessment. The nonconventional loader system consisted of a conventional loader attached to a steerable carrier which in turn was attached to the tractor by the front axle and drawbar of the tractor. The stabilizing axle for the non-conventional loader system was the front axle as opposed to the conventional system in which the stabilizing axle was the rear axle. The experiment showed that the non-conventional loader had an inherent advantage ...


Acuta Enews July 1997, Vol. 26, No. 7 Jul 1997

Acuta Enews July 1997, Vol. 26, No. 7

ACUTA Newsletters

In This Issue

ACUTA Conference Webcast

Board of Directors 1997-98

Board Report

President's Message

Welcome New Members

Music on Hold: Too Soft... Too Loud

Voicemail: Technology We Love to Hate

Spotlight

Anniversaries to Be Recognized

DC at a Glance

Supreme Court Rules Against Communications Decency Act


A Synthesized Methodology For Eliciting Expert Judgment For Addressing Uncertainty In Decision Analysis, Richard W. Monroe Jul 1997

A Synthesized Methodology For Eliciting Expert Judgment For Addressing Uncertainty In Decision Analysis, Richard W. Monroe

Engineering Management & Systems Engineering Theses & Dissertations

This dissertation describes the development, refinement, and demonstration of an expert judgment elicitation methodology. The methodology has been developed by synthesizing the literature across several social science and scientific fields. The foremost consideration in the methodology development has been to incorporate elements that are based on reasonable expectations for the human capabilities of the user, the expert in this case.

Many methodologies exist for eliciting assessments for uncertain events. These are frequently elicited in probability form. This methodology differs by incorporating a qualitative element as a beginning step for the elicitation process. The qualitative assessment is a more reasonable way ...


Development Of A Mechatronics Design Studio, Sema E. Alptekin Jun 1997

Development Of A Mechatronics Design Studio, Sema E. Alptekin

Industrial and Manufacturing Engineering

Mechatronics is a combination of mechanics, electronics and information technology intended to raise the intelligence level and flexibility of products and devices. There is a need to develop programs and laboratories in Mechatronics to create an understanding of how new technologies influence the traditional methods of designing products and manufacturing systems. A model "Mechatronics Design Studio" has recently been developed to support the Mechatronics and Manufacturing Automation courses offered at Cal Poly's Industrial and Manufacturing Engineering Department. Laboratory experiments have been developed and several student projects have been completed. In this paper, an overview of the design studio and ...


Acuta Enews June 1997, Vol. 26, No. 6 Jun 1997

Acuta Enews June 1997, Vol. 26, No. 6

ACUTA Newsletters

In This Issue

University of North Dakota Weathers Flood

Board Report

Welcome Donna

Calling All Authors

Internet 2 Goals

Welcome New Members

Spotlight

DC at a Glance

Competition Comes to Canada Telecom

FCC Modifies Caller ID


Scheduling In Assembly Type Job-Shops, Nutthapol Asadathorn May 1997

Scheduling In Assembly Type Job-Shops, Nutthapol Asadathorn

Dissertations

Assembly type job-shop scheduling is a generalization of the job-shop scheduling problem to include assembly operations. In the assembly type job-shops scheduling problem, there are n jobs which are to be processed on in workstations and each job has a due date. Each job visits one or more workstations in a predetermined route. The primary difference between this new problem and the classical job-shop problem is that two or more jobs can merge to foul' a new job at a specified workstation, that is job convergence is permitted. This feature cannot be modeled by existing job-shop techniques. In this dissertation ...


Analysis Of Surface Texture Parameters And Cutting Forces In Milling Operations, Preetesh U. Munshi May 1997

Analysis Of Surface Texture Parameters And Cutting Forces In Milling Operations, Preetesh U. Munshi

Theses

It has been known and understood that milling is quite a complicated process being a multi-point cutting tool operation. Each Surface texture is complex and requires different functions of forces to get the optimized Surface Texture. The challenge faced here is to devise any form of relation between the Surface Texture and the Milling Operating parameters (Spindle Speed, Feed rate, Depth of Cut), Cutting forces and the Milling Operating parameters and also between the Surface Texture and the Cutting Forces.

This Research study was conducted to determine the effect of the Operating Parameters on Surface Texture and Cutting forces and ...


Design Improvement Using Reverse Analysis In Design For Quality Manufacturability, Vikram V. Datla May 1997

Design Improvement Using Reverse Analysis In Design For Quality Manufacturability, Vikram V. Datla

Theses

The competitive needs of modern manufacturing demands that innovative approaches be used to gain an edge over the competitors. least Product design is one of the key dimensions wazzu in which companies can excel. Shortening the product design cycle so as to rapidly launch defect free products, is the goal of most companies. Design for Quality Manufacturability (DFQM) is a technique used to evaluate the quality manufacturability of a product at the design stage, so as to eliminate quality problems during production.

DFQM provides a means for relating the activities of quality improvement, product design and manufacturability analysis. The basis ...


Acuta Enews May 1997, Vol. 26, No. 5 May 1997

Acuta Enews May 1997, Vol. 26, No. 5

ACUTA Newsletters

In This Issue

Slate of Nominees Approved

Be a Moderator of Monitor at ACUTA's 26th Annual Conference

Board Report

Univ. of Delaware to Host ACUTA Mid-Atlantic & New England Local Event

Dues Notices Mailed

Welcome Melanie

ACUTA Committees at Work

Spotlight

DC at a Glance

Regulation of BOC Long Distance Services Revised

Welcome New Members


A Robust Unit Commitment Algorithm For Hydro-Thermal Optimization, Chao-An Li, Chung-Li Tseng, E. Hsu, R. B. Johnson, A. J. Svoboda May 1997

A Robust Unit Commitment Algorithm For Hydro-Thermal Optimization, Chao-An Li, Chung-Li Tseng, E. Hsu, R. B. Johnson, A. J. Svoboda

Engineering Management and Systems Engineering Faculty Research & Creative Works

This paper presents a unit commitment algorithm which combines the Lagrangian relaxation (LR), sequential unit commitment (SUC), and optimal unit decommitment (UD) methods to solve a general hydro-thermal optimization (HTO) problem. The authors argue that this approach retains the advantages of the LR method while addressing the method''s observed weaknesses to improve overall algorithm performance and quality of solution. The proposed approach has been implemented in a version of PG&E''s HTO program, and test results are presented.


Acuta Enews April 1997, Vol. 26, No. 4 Apr 1997

Acuta Enews April 1997, Vol. 26, No. 4

ACUTA Newsletters

In This Issue

Achievement Award Nominations

Listserve Discusses Directory Assistance

Board Report

ATM at UNM

E-mail Etiquette

Spotlight

DC at a Glance

"Internet 2" Links North Carolina

Welcome New Members

Members on the Move


Development Of A Method For Determining The Relative Manufacturing Complexity Of Advanced Engineering Materials, Shardul Y. Pandya Apr 1997

Development Of A Method For Determining The Relative Manufacturing Complexity Of Advanced Engineering Materials, Shardul Y. Pandya

Engineering Management & Systems Engineering Theses & Dissertations

The immediate adaptation of newly developed materials--with unique and highly desirable properties--is hampered by several factors, including: (1) high material cost and limited availability, (2) lack of information on them, including prior experience in their design and manufacture, immature manufacturing processes and general uncertainty in their behavior patterns, (3) unique handling issues, such as excessive manual labor, high process temperatures, toxicity, disposal problems, limited working lives, and low damage tolerance

Therefore, in spite of their significant benefits, potential users tend to shy away from the widespread use of new materials, instead preferring conventional and tested materials forms.

This dissertation is ...


Acuta Enews March 1997, Vol. 26, No. 3 Mar 1997

Acuta Enews March 1997, Vol. 26, No. 3

ACUTA Newsletters

In This Issue

Student Paper Competition Nears Deadline

U.S. Court of Appeals stays FCC Detariffing Order

Board Nominations Due April 12

Welcome New Members

Board Report

Same as Sales, But No Commission

Spotlight

DC at a Glance

Publications Committee

ACUTA Membership Renewal


Acuta Enews February 1997, Vol.26, No. 2 Feb 1997

Acuta Enews February 1997, Vol.26, No. 2

ACUTA Newsletters

In This Issue

Call for Nominations for 1997-98

ACUTA Board of Directors

Effective Presentations

Board Report

Welcome New Members

Is It a Virus- Or a Hoax?

Vendor Liaison Committee

DC at a Glance

FCC Designates Wireless Spectrum for School

FCC Extends Campus Station License Terms

Coming Soon to Your IXC: 10XXX Changes


Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee Jan 1997

Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee

Faculty Publications

Highway congestion has in recent years become a pervasive problem for urban and suburban areas alike. The concept of Automated Highway Systems is based on the belief that integration of sensing, communication, and control technologies into vehicles and highways can lead to a large improvement in capacity and safety without requiring a significant amount of additional highway right-of-way. A fundamental determinant of Automated Highway Systems capacity is the vehicle-following rule, the rule that governs the behavior of vehicles traveling along a common lane (e.g., the spacing between any two longitudinally adjacent vehicles). Vehicle following affects the longitudinal capacity (achievable ...


Two Parallel Finite Queues With Simultaneous Services And Markovian Arrivals, Srinivas R. Chakravarthy, S. Thiagarajan Jan 1997

Two Parallel Finite Queues With Simultaneous Services And Markovian Arrivals, Srinivas R. Chakravarthy, S. Thiagarajan

Industrial & Manufacturing Engineering Publications

In this paper, we consider a finite capacity single server queueing model with two buffers, A and B, of sizes K and N respectively. Messages arrive one at a time according to a Markovian arrival process. Messages that arrive at buffer A are of a different type from the messages that arrive at buffer B. Messages are processed according to the following rules: 1. When buffer A(B) has a message and buffer B(A) is empty, then one message from A(B) is processed by the server. 2. When both buffers, A and B, have messages, then two messages ...


Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee Jan 1997

Analytical Models For Vehicle/Gap Distribution On Automated Highway Systems, Jacob Tsao, Randolph W. Hall, Indrajit Chatterjee

H.-S. Jacob Tsao

Highway congestion has in recent years become a pervasive problem for urban and suburban areas alike. The concept of Automated Highway Systems is based on the belief that integration of sensing, communication, and control technologies into vehicles and highways can lead to a large improvement in capacity and safety without requiring a significant amount of additional highway right-of-way. A fundamental determinant of Automated Highway Systems capacity is the vehicle-following rule, the rule that governs the behavior of vehicles traveling along a common lane (e.g., the spacing between any two longitudinally adjacent vehicles). Vehicle following affects the longitudinal capacity (achievable ...


Telecommunications And Its Practical Application, Athol, Massachusetts, Center For Economic Development Jan 1997

Telecommunications And Its Practical Application, Athol, Massachusetts, Center For Economic Development

Center for Economic Development Technical Reports

Rural areas have been experiencing a transition in their economic and social structure. Traditional industries such as agriculture, manufacturing, and resource extraction have been declining. The result has been a displacement of labor in rural areas and instability within rural economies. Upwards of three quarters of rural counties have experienced outmigration in the last decade. Per capita income in rural areas is only two-thirds that of their urban counterparts, and rural poverty rates exceed those in urban areas. Rural areas have traditionally considering how the quality of their education, health, and government services can be incorporated into their overall development ...


Acuta Enews January 1997, Vol.26, No. 1 Jan 1997

Acuta Enews January 1997, Vol.26, No. 1

ACUTA Newsletters

In This Issue

Do You Have a Voice Mail Handbook?

A Few Words of Advice

Board Report

ACUTA Journal: Second Issue Topics

Membership Committee

Reimbursing Personal Calls

Editorial Board Named

DC at a Glance

WCU on the Cutting Edge

Interstate Long Distance Tariffs Eliminated

Block it, again

Welcome New Members