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1989

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

Application Of Risk Analysis In Investment Decision Making For New Products, Chul Paik Dec 1989

Application Of Risk Analysis In Investment Decision Making For New Products, Chul Paik

Master's Theses

This study presents the development of a quantitative model to deal with the decision to invest or not invest in the development and production of a new product. It is most applicable to new products which present a high probability of economic failure. The model employs only simple mathematics and statistics, so the decision maker can easily understand the model.

The model uses as input data three variables. These include: (1) the risk of product failure, (2) the maximum loss a company can afford in an investment, and (3) the estimated project cost. These three variables combined furnish as output ...


Acuta Enews November 1989, Vol. 18, No. 11 Nov 1989

Acuta Enews November 1989, Vol. 18, No. 11

ACUTA Newsletters

In This Issue

A Conversation with Kid Malott, ACUTA Post President

Message From The President

Toronto Seminar a Smash!

Update: More on McGill..

Changing your prefix? Read this first...

Administrative Director's Column


Acuta Enews October 1989, Vol. 18, No. 10 Oct 1989

Acuta Enews October 1989, Vol. 18, No. 10

ACUTA Newsletters

In This Issue

One of the hottest topics among ACUTA members... Student Services

DO KNOW YOUR ACUTA REGION?

Message From The President

Focus on ACUTA News:

Then and Now

User Groups

Party Line


Acuta Enews September 1989, Vol. 18, No. 9 Sep 1989

Acuta Enews September 1989, Vol. 18, No. 9

ACUTA Newsletters

In This Issue

ln Memory of Bill D. Morris

Reflection on Bill Morris

Message From The President

Party Line

Protect Your Call Records


Acuta Enews August 1989, Vol. 18, No. 8 Aug 1989

Acuta Enews August 1989, Vol. 18, No. 8

ACUTA Newsletters

In This Issue

ACUTA Conference o Success in Philly!

PHILADELPHIA BOARD MEETING

MESSAGE FROM THE PRESIDENT

First Timers Contest

USER Groups

Party Line


An Ergonomic Training Program For Manual Handling Tasks, Akhilesh Agrawal Aug 1989

An Ergonomic Training Program For Manual Handling Tasks, Akhilesh Agrawal

Master's Theses

The objective of this study was to test whether or not muscular endurance of individuals engaged in industrial manual handling tasks can be improved through a short and intensive training program. This investigation also involved the study of the effect of muscular endurance training program on muscular strength.

The study revealed that, over a six-week period, the muscular endurance can be improved significantly. After sixteen sessions of training, the endurance time increased over 500% for manual materials handling tasks and over 1200% for upper extremity manual handling tasks. The endurance training program, however, did not increase both static and dynamic ...


Acuta Enews July 1989, Vol. 18, No. 7 Jul 1989

Acuta Enews July 1989, Vol. 18, No. 7

ACUTA Newsletters

In This Issue

President's Message

ACUTA Welcomes Two New Staff Members to Serve you!

Nanci Unger, Publications Editor

Don't Miss ACUTA's 18th Annual Conference and Exhibit Show July 23-27 in Philadekphia

Kellie Preston Promoted to Staff and Events Coordinator

Another First for ACUTA: Live Satellite Transmission Planned for Annual Conference


A Distributed Message Passing Computational And I/O Engine For Real-Time Motion Control, M. Buehler, L. L. Whitcomb, F. Levin, Daniel E. Koditschek Jun 1989

A Distributed Message Passing Computational And I/O Engine For Real-Time Motion Control, M. Buehler, L. L. Whitcomb, F. Levin, Daniel E. Koditschek

Departmental Papers (ESE)

This paper illustrates the use of the Yale XP/DCS - a dual board real-time distributed control module based upon the INMOS Transputer family of micoprocessors - for high performance real-time motion control applications. The XP/DCS complements the the Transputer’s 1.5 Mflop computational rate and four independent on-chip 20 Mbps DMA communication engines, by providing a bidirectional latched 32 bit bus extension with full handshaking support for easy customization of the I/O capabilities of any node. After contrasting this design with commercially available alternatives we describe three particular applications presently underway in the Yale Robotics Laboratory. We conclude ...


Acuta Enews June 1989, Vol. 18, No. 6 Jun 1989

Acuta Enews June 1989, Vol. 18, No. 6

ACUTA Newsletters

In This Issue

President's Message

Party Line

Administrative Director's Office

The Secondary Marker: Working to Save You Money

The Battle Continues: Centrex vs PBX

Used Equipment Isn't Necessarily Abused Equipment


Management Of Construction Jobsite Productivity : A Self Assessment Approach, Nicos Poliviou Nicolaou May 1989

Management Of Construction Jobsite Productivity : A Self Assessment Approach, Nicos Poliviou Nicolaou

Theses

A critical component of construction project management is the improvement of jobsite productivity. This paper proposes a procedure for use by project managers to assess jobsite productivity performance. The methodology provides a framework which when applied will identify specific aspects of the jobsite where potential productivity improvement is possible. A major feature is its systematic approach which will direct the project manager to the specific resources which when better managed will lead to lower construction costs.


College Of Engineering And Technology Bylaws 1989, Paul Savory Apr 1989

College Of Engineering And Technology Bylaws 1989, Paul Savory

Industrial and Management Systems Engineering -- Reports

Attached are the Bylaw for the College of Engineering as approved April 21, 1989.


The Cyclops Vision System, Martin Buhler, N. Vlamis, Camillo J. Taylor, A. Ganz Apr 1989

The Cyclops Vision System, Martin Buhler, N. Vlamis, Camillo J. Taylor, A. Ganz

Departmental Papers (ESE)

Cyclops is a distributed real-time vision system. It is "real-time" as for most vision tasks, it can be configured with enough processing nodes as to allow an update rate of 60 Hz with a maximum latency of 1/30s. This allows the system to be used directly as a feedback sensor for motion control. Even though Cyclops was built originally for tracking objects in 3D at 60Hz, it offers great flexibility. It can be configured to attack many vision tasks at much higher rates than was previously possible with systems that are up to an order of magnitude more expensive ...


Acuta Enews April 1989, Vol. 18, No. 4 Mar 1989

Acuta Enews April 1989, Vol. 18, No. 4

ACUTA Newsletters

In This Issue

President's Message

Party Line

User Groups

1989-90 Dues Notices

Gallaudet University

University of Missouri Adds Video Instruction To Beat The Highway Blue

Wake Forest University Telecommunitcations

Administrative Director's Office

Sky-high satisfaction with SkyDome contract


Acuta Enews March 1989, Vol. 18, No. 3 Mar 1989

Acuta Enews March 1989, Vol. 18, No. 3

ACUTA Newsletters

In This Issue

Duke University Tel-Com

Bits & Pieces

President's Message

Administrative Director's Office

Palm Springs Seminar

Party Line

Digital Rebel

User Groups


The Application Of Total Energy As A Lyapunov Function For Mechanical Control Systems, Daniel E. Koditschek Feb 1989

The Application Of Total Energy As A Lyapunov Function For Mechanical Control Systems, Daniel E. Koditschek

Departmental Papers (ESE)

Examination of total energy shows that the global limit behavior of a dissipative mechanical system is essentially equivalent to that of its constituent gradient vector field. The class of “navigation functions” is introduced and shown to result in “almost global” asymptotic stability for closed loop mechanical control systems upon which a navigation function has been imposed as an artifical potential energy. Two examples from the engineering literature - satellite attitude tracking and robot obstacle avoidance - are provided to demonstrate the utility of these observations.

For more information: Kod*Lab


Natural Control In Manufacturing, Daniel E. Koditschek Feb 1989

Natural Control In Manufacturing, Daniel E. Koditschek

Departmental Papers (ESE)

This paper reviews certain theoretical results in robot task planning and control obtained with the support of NSF Research Initiation Grant DMC-8505160. The “natural control” paradigm is reviewed and detailed attention is focused upon the specific task of robot navigation in a cluttered environment. The paper concludes with some comments concerning the problems which remain before this approach to robot command and control can be made practicable in a real manufacturing environment. A summary of formal results presented in the paper now follows. The class of “navigation functions” simultaneously encodes the task of navigating amidst obstacles and automatically generates correct ...


Acuta Enews February 1989, Vol. 18, No. 2 Feb 1989

Acuta Enews February 1989, Vol. 18, No. 2

ACUTA Newsletters

In This Issue

President's Message

Party Line

Users Must Join The Standards Fray

Video Classroom

User Groups

Bits & Pieces


Integrating Scheduling And Control Functions In Computer Integrated Manufacturing Using Artificial Intelligence, Luis Carlos Rabelo, Sema E. Alptekin Jan 1989

Integrating Scheduling And Control Functions In Computer Integrated Manufacturing Using Artificial Intelligence, Luis Carlos Rabelo, Sema E. Alptekin

Industrial and Manufacturing Engineering

Proper integration of scheduling and control in Flexible Manufacturing Systems will make available the required level of decision-making capacity to provide a flexibly-automated, efficient, and quality manufacturing process. To achieve this level of integration, the developments in computer technology and sophisticated techniques of artificial intelligence (AI) should be applied to such FMS functions as scheduling. In this paper, we present an Intelligent Scheduling System for FMS under development that makes use of the integration of two AI technologies. These two AI technologies — Neural Networks and Expert Systems — provide the intelligence that the scheduling function requires in order to generate good ...


Group Set-Up For Printed Circuit Board Assembly, Tali F. Carmon, Oded Z. Maimon, Ezey M. Dar-El Jan 1989

Group Set-Up For Printed Circuit Board Assembly, Tali F. Carmon, Oded Z. Maimon, Ezey M. Dar-El

Industrial and Manufacturing Engineering

The current practice in the assembly of electronic components on printed circuit boards (PCBs) is serial production. a process characterized by very long set-up times. However, with the advent of efficient on-line process information .. new production control methods are now possible. This paper proposes a different production method, called the group set-up (GSU) method, which can significantly reduce set-up times. The traditional and the GSU production methods are compared, and it is shown that the GSU always performs better than the traditional method in terms of total production flow (throughput) and labour time However, the traditional method performs better than ...


The Effect Of Technology On Information-Based Work Systems, Edward M. Peters Jr. Jan 1989

The Effect Of Technology On Information-Based Work Systems, Edward M. Peters Jr.

Theses and Dissertations

No abstract provided.


The Statistical Optimal Design Of Shewhart Control Charts With Supplementary Stopping Rules , Noel Artiles-Leon Jan 1989

The Statistical Optimal Design Of Shewhart Control Charts With Supplementary Stopping Rules , Noel Artiles-Leon

Retrospective Theses and Dissertations

Monitoring production processes to assure product quality has been a major problem in industrial engineering and quality control. These processes are subject to shifts to "out-of-control" states resulting in the production of nonconforming items. In general, desirable control schemes are those that require a small number of samples (small run length) for the detection and correction of these shifts in the process meanwhile providing a large in-control average run length (A.R.L.);In this study, a method for designing control schemes for X-bar charts is presented and discussed. This method can be used in conjunction with economical-design methods for ...


Analysis Of The C2 System Effectiveness Using Continous Processing Time , Yongsu Kwak Jan 1989

Analysis Of The C2 System Effectiveness Using Continous Processing Time , Yongsu Kwak

Retrospective Theses and Dissertations

A typical command-control (C[superscript]2) system was modeled and analyzed for peace-time and war-time as Conflict-free Stochastic Timed Placed Petri Net. The decomposition of the model provides an easier method to formulate and to simulate system states. The procedures to evaluate time-related measures: system maximum throughput rate, measured by minimum average circuit processing rate achieved by the system; average cycle processing rate of a C[superscript]2 process, measured by the processing rate of the task circuit formed by a C[superscript]2 process; and the average system response time, measured by the average time elapsed for the system ...


Toward The Development And Implementation Of Object-Oriented Extensions For Discrete-Event Simulation In A Strongly-Typed Procedural Language , Kurt Hollister Diesch Jan 1989

Toward The Development And Implementation Of Object-Oriented Extensions For Discrete-Event Simulation In A Strongly-Typed Procedural Language , Kurt Hollister Diesch

Retrospective Theses and Dissertations

The primary emphasis of this research is computer simulation. Computer simulations are used to model and analyze systems. To date, computer simulations have almost exclusively been written in procedural, strongly-typed languages such as FORTRAN or Pascal;Recent advancements in simulation research suggest an object-oriented approach to simulation languages may provide key benefits in computer simulation. The goal of this research is to combine the advantages of a simulation language written in a procedural, strongly-typed language with the benefits available through the object-oriented programming paradigm;This research presents a review of the methods of computer simulation. A significant portion of this ...


The Development Of A Knowledge-Based System For Semantic Data Modeling /, William H. Fenton Jan 1989

The Development Of A Knowledge-Based System For Semantic Data Modeling /, William H. Fenton

Theses and Dissertations

No abstract provided.


Manufacturing Assessment And Strategic Perspectives On Competitiveness /, Fausto Antonio Reyes Jan 1989

Manufacturing Assessment And Strategic Perspectives On Competitiveness /, Fausto Antonio Reyes

Theses and Dissertations

No abstract provided.


A Study Of Current Computer Technology In Plant Operations And The Integration Of Expert Systems /, Karen A. Trubela Jan 1989

A Study Of Current Computer Technology In Plant Operations And The Integration Of Expert Systems /, Karen A. Trubela

Theses and Dissertations

No abstract provided.


An Exploratory Investigation Into The Application Of Abrasive Waterjet Cutting For The Construction Industry /, Marc Q. Douglas Jan 1989

An Exploratory Investigation Into The Application Of Abrasive Waterjet Cutting For The Construction Industry /, Marc Q. Douglas

Theses and Dissertations

No abstract provided.


Application Of Flexible Transducer Array Technology To Measure Erosion-Corrosion In Carbon Steel Piping, Tim Harrington, Soung-Nan Liu Jan 1989

Application Of Flexible Transducer Array Technology To Measure Erosion-Corrosion In Carbon Steel Piping, Tim Harrington, Soung-Nan Liu

Review of Progress in Quantitative Nondestructive Evaluation

The Portable Automated Remote Inspection System (PARIS) manufactured by Failure Analysis Associates, Inc. (FaAA) was originally designed to inspect graphite epoxy composites. Recently, FaAA has investigated the application of PARIS to measure wall thinning in carbon steel components. The results of this investigation are the subject of this paper.


Modeling The Interaction Of Multibeam/Multimode Ultrasonic Transducers With Fatigue Cracks In Cladded Reactor Pressure Vessels, George Gruber, Ted Mueller Jan 1989

Modeling The Interaction Of Multibeam/Multimode Ultrasonic Transducers With Fatigue Cracks In Cladded Reactor Pressure Vessels, George Gruber, Ted Mueller

Review of Progress in Quantitative Nondestructive Evaluation

The integrity of reactor pressure vessels is primarily affected by the presence of fatigue cracks. The novel SLIC transducers which simultaneously use Shear and Longitudinal waves for materialInspection and flaw Characterization have recently been qualified in conjunction with satellite-pulse flight time measurement techniques on over fifty fatigue cracks in cladded test blocks [1], However, a computer modeling capability to aid the ultrasonic examiner in the interpretation of the data was not available during the 1983–84 qualification trials of the multibeam inspection (SLIC) technology [1].


Emats For Roll-By Crack Inspection Of Railroad Wheels, R. E. Schramm, P. J. Shull, A. V. Clark Jr., D. V. Mitrakovic Jan 1989

Emats For Roll-By Crack Inspection Of Railroad Wheels, R. E. Schramm, P. J. Shull, A. V. Clark Jr., D. V. Mitrakovic

Review of Progress in Quantitative Nondestructive Evaluation

Railroad safety depends on many factors. The integrity of the wheels on rolling stock is one that is subject to nondestructive evaluation. For some years, ultrasonic testing has been applied to the detection of cracks in wheel treads, with particular attention to automatic, in-rail, roll-by methods. We have begun constructing a system aimed at using relatively low frequency Rayleigh waves generated by electromagnetic-acoustic transducers (EMATs). The current design uses a permanent magnet to maintain a compact structure and minimize the size of the pocket machined into the rail. Measurements thus far indicate a responsiveness, even to small flaws. With the ...