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Operations Research, Systems Engineering and Industrial Engineering Commons

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1999

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Articles 1 - 30 of 71

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

Optimum Design And Machining Parameters Of A Permanent Magnet Brushless Dc Linear Motor As A Cnc Feed Drive, William Tereshkovich Dec 1999

Optimum Design And Machining Parameters Of A Permanent Magnet Brushless Dc Linear Motor As A Cnc Feed Drive, William Tereshkovich

Dissertations

A new heuristic has been developed to determine optimal operating parameters applied to a permanent magnet brushless DC linear motor (PMBDCLM) as a CNC feed drive. An FEA model has been developed utilizing an -electromagnetic postprocessor to provide performance output of a PMBDCLM and DC servomotor. Based on the developed FEA models, velocity results have been utilized to provide feedrate levels for design of experiments (DOE). DOE has been conducted to provide force, tolerance, and surface finish data necessary for the performance comparison of a DC servo motor/ballscrew equipped CNC vertical milling machine and a PMBDCLM equipped CNC vertical ...


Acuta Enews December 1999, Vol.28, No. 12 Dec 1999

Acuta Enews December 1999, Vol.28, No. 12

ACUTA Newsletters

In This Issue

ACUTA to Recognize Member's Web Sites

ACUTA EVENTS

ACUTA Announces Online Legislative & Regulatory Affairs Newsletter

DC Update

Overheard on the Listserve............. Directory Assistance Direct Connect

Board Report

Welcome New Members

Positions Available


Simtrainer: A Management Training Tool, Wade Stark, Sema E. Alptekin Nov 1999

Simtrainer: A Management Training Tool, Wade Stark, Sema E. Alptekin

Industrial and Manufacturing Engineering

Abstract published of poster paper presented at conference.


An Evaluation Of Ploughing Models For Orthogonal Machining, Daniel J. Waldorf, Richard E. Devor, Shiv G. Kapoor Nov 1999

An Evaluation Of Ploughing Models For Orthogonal Machining, Daniel J. Waldorf, Richard E. Devor, Shiv G. Kapoor

Industrial and Manufacturing Engineering

An analytical comparison is made between two basic models of the flow of workpiece material around the edge of an orthogonal cutting tool during steady-state metal removal. Each has been the basis for assumptions in previous studies which attempt to model the machining process, but no direct comparison had been made to determine which, if either, is an appropriate model. One model assumes that a separation point exists on the rounded cutting edge while the other includes a stable build-up adhered to the edge and assumes a separation point at the outer extreme of the build-up. Theories of elastic-plastic deformation ...


Scheduling Semiconductor Device Test Operations On Multihead Testers, Tali Freed, Robert C. Leachman Nov 1999

Scheduling Semiconductor Device Test Operations On Multihead Testers, Tali Freed, Robert C. Leachman

Industrial and Manufacturing Engineering

Past attempts to devise scheduling methods for the device test operations of semiconductor manufacturing firms fail to address a significant characteristic of multiple-head test systems—the dependency of processing rates on the lots processed simultaneously on the testers. Since the problem has never been modeled accurately in the scheduling literature, feasibility and performance of previously proposed scheduling methodologies for multihead testers may not be accurately assessed. In this paper, we describe the multihead tester scheduling problem, present an enumeration solution procedure, and illustrate the problems of previously suggested tester scheduling algorithms.


Acuta Enews November 1999, Vol.28, No. 11 Nov 1999

Acuta Enews November 1999, Vol.28, No. 11

ACUTA Newsletters

In This Issue

Who Are the Leader? WE ARE!

ACUTA EVENTS

DC Update

Convergence In the Real World: Voice, Video, Data over ATM and ISND-based Video Conferencing at Millersville University

Board Report

Welcome New Members

Positions Available


Gauge Repeatability & Reproducibility Study For A 3-D Solder Paste Inspection System, Jianbiao Pan, Gregory L. Tonkay, Robert H. Storer, Ronald M. Sallade, David J. Leandri Oct 1999

Gauge Repeatability & Reproducibility Study For A 3-D Solder Paste Inspection System, Jianbiao Pan, Gregory L. Tonkay, Robert H. Storer, Ronald M. Sallade, David J. Leandri

Industrial and Manufacturing Engineering

Due to the increased use of Ball Grid Arrays (BGAs) and fine pitch and ultra fine pitch Quad Flat Packages (QFPs), there is a dramatic increase in demand for solder paste inspection after the stencil printing process. The important response variables of the printing process are deposited solder paste volume, area, height and position. To identify and remove defects at the earliest possible process step, a 3-D solder paste inspection system should be used to monitor solder paste deposited on all pads on every board before component placement. An example is a fully automatic laser-based 3-D triangulation solder paste inspection ...


Critical Variables Of Solder Paste Stencil Printing For Micro-Bga And Fine Pitch Qfp, Jianbiao Pan, Gregory L. Tonkay, Robert H. Storer, Ronald M. Sallade, David J. Leandri Oct 1999

Critical Variables Of Solder Paste Stencil Printing For Micro-Bga And Fine Pitch Qfp, Jianbiao Pan, Gregory L. Tonkay, Robert H. Storer, Ronald M. Sallade, David J. Leandri

Industrial and Manufacturing Engineering

Stencil printing continues to be the dominant method of solder deposition in high volume surface mount assembly. Control of the amount of solder paste deposited is critical for fine pitch and ultra-fine pitch SMT assembly. The process is still not well understood as indicated by the fact that industry reports 52-71% of SMT defects are related to the solder paste stencil printing process. The purpose of this paper is to identify the critical variables that influence the deposited solder paste volume, area, and height. An experiment was conducted to investigate the effects of relevant process parameters on the amount of ...


The Impact Of The Simulated Digital Data Radio Communication Induced Interference On Voice Radio Communication, Daniela T. Kratchounova Oct 1999

The Impact Of The Simulated Digital Data Radio Communication Induced Interference On Voice Radio Communication, Daniela T. Kratchounova

Theses - Daytona Beach

The transition of air/ground communications, from its present analog structure to a new digital communications architecture, will span a 10-year time frame. Testing to date indicates that the potential for interference from the digital system to the analog system would be critical, especially for General Aviation (GA) aircraft. This type of interference can be described as short, random bursts of noise capable of completely obliterating parts of the voice communication. The subsequent degrading effects on voice radio communications could jeopardize flight safety. The masking of parts of important information would result in distracted attention, debilitated cognitive performance, high level ...


General Aviation Aircraft: A Comparative Analysis Of Analog Instrument Display And Conceptual Primary Flight Display, Ungul Laptaned Oct 1999

General Aviation Aircraft: A Comparative Analysis Of Analog Instrument Display And Conceptual Primary Flight Display, Ungul Laptaned

Theses - Daytona Beach

The primary purpose of this study was to evaluate the effects that analog instrument display versus primary flight display (PFD) had on pilot performance. Pilot performance was evaluated by: (a) time, and (b) number of errors. There were twenty subjects with a minimum of a private pilot license selected from the Aeronautical Science department at Embry-Riddle Aeronautical University. Three flight conditions (spoiler problem, engine problem, and flap failure) acting as a control group was given to the flight students while flying a traffic pattern. A Silicon Graphics® flight simulation software program and a video camera were used as the data ...


Acuta Enews October 1999, Vol.28, No. 10 Oct 1999

Acuta Enews October 1999, Vol.28, No. 10

ACUTA Newsletters

In This Issue

ACUTA Strategizes for the Future

ACUTA EVENTS

Three Win Achievements Awards

DC Update

Integrating H.323 Video Conferencing into an Existing H.320 System

Winter Seminars: Surf and Substance!

Welcome New Members

Positions Available


Introduction To Industrial Engineering: Operations Research, Paul Savory Oct 1999

Introduction To Industrial Engineering: Operations Research, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. Operations Research is an area of industrial engineering concerned with the allocation of scarce resources. One area of operations research is linear programming. Linear programming is a method often used to solve large, complicated problems. These problems often require a manager to determine how to use the company’s limited resources most efficiently.


Introduction To Industrial Engineering: Simulation Analysis, Paul Savory Oct 1999

Introduction To Industrial Engineering: Simulation Analysis, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. Simulation is one of industry’s most used operations research. Its uses range from answering questions about work-in-process and production feasibility to comparing alternative plans for system routing and scheduling.


Introduction To Industrial Engineering: Theme Park Design And Layout, Paul Savory Oct 1999

Introduction To Industrial Engineering: Theme Park Design And Layout, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. Plant layout and design is one of the key areas of industrial engineering. There are numerous issues that must be accounted for. A subset include: machine utilization, queueing space, and flow of materials. To provide students with an introduction to plant layout and design, let's consider designing a theme park. As we will see, many of the concepts will be the same.


Introduction To Industrial Engineering: Manufacturing Variability, Paul Savory Oct 1999

Introduction To Industrial Engineering: Manufacturing Variability, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. This fun and interactive penny manufacturing game highlights the impact of variability, capacity, and overtime.


Introduction To Industrial Engineering: Bad Human Factor Designs, Paul Savory Oct 1999

Introduction To Industrial Engineering: Bad Human Factor Designs, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. Ergonomics or human factors does not only encompass product design, but safety, and product use. A simple definition is “to make the work place safe and less stressful on the worker.” Human factors or ergonomics impacts all aspects of our lives. Let's consider each of the following examples of bad human factor designs.


Introduction To Industrial Engineering: Ethical Choices, Paul Savory Oct 1999

Introduction To Industrial Engineering: Ethical Choices, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. All industrial engineering, product designers, and managers must at some point in their career face an issue that requires some amount of ethical or moral judgment. Consider the following scenarios and discuss with your group members what each of you would do.


Introduction To Industrial Engineering: Interpretation Of Visual Displays, Paul Savory Oct 1999

Introduction To Industrial Engineering: Interpretation Of Visual Displays, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. The area of human factors or ergonomics focuses on human beings and their interaction with products, equipment, facilities, producers, and environments used in work and everyday life. The emphasis is on human beings and how the design of things influences people. One small area of ergonomics is concerned with how humans interpret visual displays. For an introduction to this area, let's consider the visual interpretation of static displays (i.e ...


Introduction To Industrial Engineering: Team Tower, Paul Savory Oct 1999

Introduction To Industrial Engineering: Team Tower, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. One of the key areas of Industrial Engineering is quality control. Quality control is concerned with testing and inspecting a product to confirm that it meets production and customer specifications. To understand some of the basics of quality control, let’s consider the production of M&M candies.


Introduction To Industrial Engineering: Group Resume, Paul Savory Oct 1999

Introduction To Industrial Engineering: Group Resume, Paul Savory

Industrial and Management Systems Engineering -- Instructional Materials

Classroom exercise for IMSE 150 at the University of Nebraska-Lincoln. This goal is to introduce freshman industrial engineering students to various aspects of industrial engineering and being an engineer. This ice-breaking exercise has students work in groups to create a group resume to get to know each other better.


Screen Printing Process Design Of Experiments For Fine Line Printing Of Thick Film Ceramic Substrates, Jianbiao Pan, Gregory L. Tonkay, Alejandro Quintero Sep 1999

Screen Printing Process Design Of Experiments For Fine Line Printing Of Thick Film Ceramic Substrates, Jianbiao Pan, Gregory L. Tonkay, Alejandro Quintero

Industrial and Manufacturing Engineering

Screen printing has been the dominant method of thick film deposition because of its low cost. Many experiments in industry have been done and many models of the printing process have been developed since the 1960's. With a growing need for denser packaging and a drive for higher pin count, screen printing has been refined to yield high resolution prints. However, fine line printing is still considered by industry to be difficult. In order to yield high resolution prints with high first pass yields and manufacturing throughput, the printing process must be controlled stringently.

This paper focuses on investigating ...


Acuta Enews September 1999, Vol.28, No. 9 Sep 1999

Acuta Enews September 1999, Vol.28, No. 9

ACUTA Newsletters

In This Issue

What's Hot on Your Campus?

Developing Collaborative Relationship

ACUTA EVENTS

DC Update

Pipeline Comes to Appalachia

Board Report

ACUTA Fall Seminars

Patricia Todus Named Director-at-Large

Welcome New Members

Positions Available


Design Strategy Of Snow Depth Sensor Based On Ultrasonic Pulse-Transit Technique For Remote Measurement Of Snow Cover Thickness, Raman Attri Aug 1999

Design Strategy Of Snow Depth Sensor Based On Ultrasonic Pulse-Transit Technique For Remote Measurement Of Snow Cover Thickness, Raman Attri

Raman K. Attri

Snow cover thickness is one of the important parameter used in forecasting models for snow-melt, snow run-off water, snow avalanche release and other snow hydrological changes. Ultrasonic pulse transit method is being used for such applications universally. Reflected echo coming after reflection from highly irregular and non-smooth porous surface, is very low amplitude noise ridden signal. This received echo signal has to be conditioned to remove signal and processed to increase its amplitude to make it sufficiently detectable and to increase the probability of receiving back the reflected echo. A special design of Snow Depth Sensor based on Ultrasonic Pulse ...


Acuta Enews August 1999, Vol. 28, No. 8 Aug 1999

Acuta Enews August 1999, Vol. 28, No. 8

ACUTA Newsletters

In This Issue

Annual Conference Highlights

ACUTA EVENTS

ACUTA Upgrades Web Site

DC Update

Indiana University Hosts Local Events

Board Report

Overheard on the Listserve

Welcome New Members

Positions Available


Acuta Enews July 1999, Vol.28, No. 7 Jul 1999

Acuta Enews July 1999, Vol.28, No. 7

ACUTA Newsletters

In This Issue

New Board for 1999-2000

ACUTA EVENTS

Fall Seminars Focus on Customer Service & New Technologies

DC Update

Legislative & Regulatory Alert

They Answered Our Call

Board Report

Welcome New Members

Positions Available


Exploring Participation Processes For Technology Development: Case Studies Of Biotechnology Research And Development Projects In Thailand, Omjai Yuktavetya Jul 1999

Exploring Participation Processes For Technology Development: Case Studies Of Biotechnology Research And Development Projects In Thailand, Omjai Yuktavetya

Engineering Management & Systems Engineering Theses & Dissertations

There is increased awareness in the organizational and management literature that participation can make contributions in technology development. One of the problems in developing biotechnology in Thailand is that only a small portion of publicly funded research and development projects directly result in commercial success. Among the reasons cited (TDRI 1992a) is a lack of collaboration between various stakeholders; therefore, an effective technology policy to support their participation is needed. This research explores current participation processes in biotechnology research and development projects in Thailand in which there were different perspectives among various stakeholders. The quantitative and qualitative methodologies developed here ...


Evolving Neural Networks Applied To Predator-Evader Problem, Shivakumar Viswanathan, Ilker Ersoy, Filiz Bunyak, Cihan H. Dagli Jul 1999

Evolving Neural Networks Applied To Predator-Evader Problem, Shivakumar Viswanathan, Ilker Ersoy, Filiz Bunyak, Cihan H. Dagli

Computer Science Faculty Research & Creative Works

The creation of strategies to meet abstract goals is an important behavior exhibited by natural organisms. A situation requiring the development of such strategies is the predator-evader problem. To study this problem, Khepera robots are chosen as the competing agents. Using computer simulations the evolution of the adaptive behavior is studied in a predator-evader interaction. A bilaterally symmetrical multilayer perceptron neural network architecture with evolvable weights is used to model the “brains” of the agents. Evolutionary programming is employed to evolve the predator for developing adaptive strategies to meet its goals. To study the effect of learning on evolution a ...


Industrial Engineering Made Simple, Deena Daggett, Sema E. Alptekin Jun 1999

Industrial Engineering Made Simple, Deena Daggett, Sema E. Alptekin

Industrial and Manufacturing Engineering

Many high school students these days do not quickly recognize or identify Industrial Engineering (IE) procedures, practices, and products. Recruitment of qualified students into IE programs requires continuous planning, publicizing, and networking. Traditional recruitment efforts have included high school visits, brochures & flyers, and university-sponsored workshops. However, these techniques have only achieved mediocre success. Currently, a need exists for new promotional materials that utilize visual tools and provide a “hands-on” approach. We have developed several exercises that successfully introduce IE. Two such exercises are explained in this paper. The first exercise demonstrates the differences between Assembly line and Cellular Manufacturing by ...


Phd Thesis (Doctorat De Spécialité): Université De Ouagadougou, 1999. Dr. Mamoudou H. Dicko. Purification Et Propriétés Physico-Chimiques Des Enzymes De Curculigo Pilosa, Gladiolus Klattianus Et Boscia Senegalensis Catalysant L'Hydrolyse Des Polysaccharides (Amidon Et Béta-Glucanes), Mamoudou H. Dicko Prof. Jun 1999

Phd Thesis (Doctorat De Spécialité): Université De Ouagadougou, 1999. Dr. Mamoudou H. Dicko. Purification Et Propriétés Physico-Chimiques Des Enzymes De Curculigo Pilosa, Gladiolus Klattianus Et Boscia Senegalensis Catalysant L'Hydrolyse Des Polysaccharides (Amidon Et Béta-Glucanes), Mamoudou H. Dicko Prof.

Pr. Mamoudou H. DICKO, PhD

The objective of this study was the research of novel and inexpensive sources of polysaccharides degrading enzymes such as amylases and glucanases from local plants in order to justify their biotechnological applications. The isolation of two l3-amylases and an endo-1,3-ß-D-glucanase was reached using common protein purification methods such as buffer extraction, ammonium sulfate fractionation, ionexchange and gel filtration chromatographies. The methods used were simple and easily reproducible, suggesting the possibilfty of large-scale production. ln the crude extract of Curculigo pilosa tuber, only ß-amylase was detected as starch degrading enzyme and its activity was approximately 282 Uig of fresh material ...


Gsis: A Conceptual Model For Web-Based Integration Of Information Technology With Geo-Scientific Instrumentation, Raman Attri Jun 1999

Gsis: A Conceptual Model For Web-Based Integration Of Information Technology With Geo-Scientific Instrumentation, Raman Attri

Raman K. Attri

Since a long time leading organisations have been advocating the need of implementation of IT in a centralised manner on the distributed geological data monitoring centres. In the era of IT, it is highly important to access, share and analyse related data on a common platform for fast retrieval of information in centralised as well as in distributed mode. In this article a concept to integrate Geo-Scientific Instrumentation systems to Information Technology has been highlighted. The vision to create a Geo-Scientific Information System (GSIS) would be an approach where a centralised web-enabled database of the data acquired & transmitted by geographically ...