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Full-Text Articles in Engineering
Acuta Enews December 1999, Vol.28, No. 12
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
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
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
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
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
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
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 …
Acuta Enews October 1999, Vol.28, No. 10
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: Simulation Analysis, Paul Savory
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
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
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
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: Operations Research, Paul Savory
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: Team Tower, Paul Savory
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
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.
Introduction To Industrial Engineering: Interpretation Of Visual Displays, Paul Savory
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., information that …
Introduction To Industrial Engineering: Ethical Choices, Paul Savory
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.
Screen Printing Process Design Of Experiments For Fine Line Printing Of Thick Film Ceramic Substrates, Jianbiao Pan, Gregory L. Tonkay, Alejandro Quintero
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 the …
Acuta Enews September 1999, Vol.28, No. 9
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
Acuta Enews August 1999, Vol. 28, No. 8
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
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
Evolving Neural Networks Applied To Predator-Evader Problem, Shivakumar Viswanathan, Ilker Ersoy, Filiz Bunyak, Cihan H. Dagli
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 …
The Effectiveness Of An On-Line Graduate Engineering Management Course, Rosemarie Maffei Evans, Madison Daily, Susan L. Murray
The Effectiveness Of An On-Line Graduate Engineering Management Course, Rosemarie Maffei Evans, Madison Daily, Susan L. Murray
Engineering Management and Systems Engineering Faculty Research & Creative Works
In the summer of 1997, the Engineering Management Department of the University of Missouri-Rolla's (UMR) began offering its first Internet-based graduate level course. This course, Advanced Production Management, was designed to utilize a combination of Internet-based tools, such as EMail and Chat rooms to create a alternative means for the delivery of course material. This paper will draw these following conclusions from more than a year of research, which included over 100 students in six different course offerings. First, the Internet-based students performed equally as well as the control group students. Second, students tend to have exaggerated time requirement expectations …
Industrial Engineering Made Simple, Deena Daggett, Sema E. Alptekin
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 …
Acuta Enews June 1999, Vol.28, No. 6
Acuta Enews June 1999, Vol.28, No. 6
ACUTA Newsletters
In This Issue
Winners Announced in Student Papers Contest
Conference Offers Many Choices
Dues Notices Mailed
Does It Make Sense?
Board Report
Share Your Expertise
DC at a Glance
Positions Available
Welcome New Members
A Five-Year Development Plan For The California Aviation Database, H.-S. Jacob Tsao
A Five-Year Development Plan For The California Aviation Database, H.-S. Jacob Tsao
Faculty Publications
The California Aviation Database (CAvD) project was suggested by Caltrans Aeronautics Program to fulfill a need of the planners involved in aviation system planning and programming activities to locate and access aviation data and information in an efficient and comprehensive way. CAvD is being implemented in the form of an Internet website and is currently intended as a five-year project. However, the development can be accelerated, and the duration will depend on the available resources. CAvD is a joint project between the National Center of Excellence for Aviation Operations Research (NEXTOR) and the California Department of Transportation (Caltrans). Its primary …
Moving Transportation Toward Sustainable Development: The Need For A Paradigm Shift, Bahador Ghahramani, Stephen A. Raper
Moving Transportation Toward Sustainable Development: The Need For A Paradigm Shift, Bahador Ghahramani, Stephen A. Raper
Engineering Management and Systems Engineering Faculty Research & Creative Works
Despite progress in controlling exhaust emissions, the increase of cars on the road will surpass progress in emission control technology. The automobile is currently responsible for 50% of world fossil fuel consumption, 15-20% of CO2 emissions worldwide and overwhelming particulate air pollution in many urban centers. Current efforts in emissions control have been focused on improving the efficiency of fuels and automobiles and their emissions. However, as a mode of transportation, the automobile is one of the most inefficient, both in environmental and economic costs. Even the most efficient cars developed today will still significantly contribute to the amount …
Simulation Modeling Presentations: The Life Cycle, Edward Yellig, Paul Savory
Simulation Modeling Presentations: The Life Cycle, Edward Yellig, Paul Savory
Department of Industrial and Management Systems Engineering: Faculty Publications
A typical large scale simulation modeling project spans many months and encompasses activities such as problem definition, data collection, model development, experimentation, and scenario analysis. During the life cycle of a simulation project, numerous presentations are made to many different types of audiences. The purpose of these presentations will vary from seeking project approval, requesting information, discussing simulation model features, verifying the model, validating the model, presenting the experimental results, and offering model conclusions. This paper will discuss presentation techniques we used during a year-long simulation-modeling project. We will highlight techniques used for defining the purpose of each presentation, identifying …
Acuta Enews May 1999, Vol. 28, No. 5
Acuta Enews May 1999, Vol. 28, No. 5
ACUTA Newsletters
In This Issue
Board Approves Slate of Nominees
Moderators & Monitors Needed in Nashville!
Board Report
Who Pays for Cellular Calls?
DC at a Glance
Positions Available
Welcome New Members
Use Of Feedforward Neural Networks For Machine Vision Calibration, Mark B. Lynch, Cihan H. Dagli, Mahesh Vallenki
Use Of Feedforward Neural Networks For Machine Vision Calibration, Mark B. Lynch, Cihan H. Dagli, Mahesh Vallenki
Engineering Management and Systems Engineering Faculty Research & Creative Works
Machine vision calibration is an important step to obtaining usable measurements in inspection and automation operations. Conventional calibration techniques require the development of elaborate mathematical models and have prior knowledge of many parameters. Creating a suitable model and obtaining reasonable values for some calibration parameters is often difficult and error prone. In this article, a neural network approach is presented as an indirect non-linear optimization method to machine vision calibration. This approach does not require a mathematical model be developed nor any prior knowledge about the setup or calibration parameters. A universal calibration approach is developed and utilized in various …