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Articles 7921 - 7950 of 8030

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

Comparison Of A Linear Programming Formulation Of A Production Smoothing Model And A Combined Linear And Quadratic Model, Roy L. Epp Jan 1965

Comparison Of A Linear Programming Formulation Of A Production Smoothing Model And A Combined Linear And Quadratic Model, Roy L. Epp

Theses and Dissertations

Two existing production smoothing and inventory control models have been compared. One is a linear programming model and the other model combines a linear inventory and manpower adjustment rule with a quadratic production cost function.


Identification Of Statistically Homogeneous Subgroups Within A Mixed Population, Joseph W. Foster Iii Jan 1965

Identification Of Statistically Homogeneous Subgroups Within A Mixed Population, Joseph W. Foster Iii

Theses and Dissertations

Industrial engineers are encountering a class of problems involving mixed populations for which no standard solution exists. An acceptable solution must be capable of identifying statistically homogeneous sub-groups within the mixed population. This paper describes the problem, proposes a solution technique and suggests extensions of the study.


The Heuristic Method Of Solving The Same Route - No Passing Sequencing Problem, Roland J. Lavelle Jr. Jan 1965

The Heuristic Method Of Solving The Same Route - No Passing Sequencing Problem, Roland J. Lavelle Jr.

Theses and Dissertations

A heuristic method of solving the same route - no passing sequencing problem (the network method) is developed and compared with other techniques of solution. Tests were performed at levels of 7,9,and 11 jobs with 5,7,9 machines. Results indicated that the network method was statistically superior, over all tests, to the other methods.


An Investigation Of The Effect Of Block Size In Statistical Testing Of Psuedo-Random Number Sequences, Wayne N. Stafford Jan 1965

An Investigation Of The Effect Of Block Size In Statistical Testing Of Psuedo-Random Number Sequences, Wayne N. Stafford

Theses and Dissertations

The purpose of this study was to investigate the effect of block size on the results of statistical testing of pseudo-random number sequences. The results of a factorial experiment utilizing the analysis of variance technique indicated that neither block size nor any interaction involving block size was statistically significant in testing of three different congruential pseudo-random number generators.


On The Determination Of Optimal Price Break Procurement Policies, James D. Wray Jan 1965

On The Determination Of Optimal Price Break Procurement Policies, James D. Wray

Theses and Dissertations

The concave case (the case of economies of scale) associated with both Cases I and II will be studied both from a mathematical point of view and from the standpoint of applying two computational algorithms to obtain the optimum solution. The advantages of the computational procedures over the method of total enumeration will be demonstrated for several test problems by using a computer program to enumerate all feasible solutions and then to apply the simplifications called for by these algorithms to demonstrate what the savings would have been if these techniques had been applied.


The Effect Of Scheduling On A Multi-Variate Stochastic System Evaluated Using Simulation Techniques, James Muir Jan 1965

The Effect Of Scheduling On A Multi-Variate Stochastic System Evaluated Using Simulation Techniques, James Muir

Theses and Dissertations

To ensure maximum utilization of computing facilities and simultaneously strive to minimize the turnaround time of programs received, the priority rules used to schedule programs for running become important. This study investigated the factors pertinent to the turnaround time, described these factors using Monte Carlo methods and mathematical models, linked each model to form the path taken by a computer program from arrival into the queue until its return and considered the resulting model a stochastic system.


On The Transhipment Approach To Personnel Scheduling With Fluctuating Demands, Douglas D. Padgette Jan 1965

On The Transhipment Approach To Personnel Scheduling With Fluctuating Demands, Douglas D. Padgette

Theses and Dissertations

A particular type of personnel scheduling is concerned with the assignment of employees where the number of jobs vary from period to period during the workday. This paper presents a mathematical approach, namely the transhipment method, for use in problems of this type.


A Study Of Dispatching Priority Rules In A Make-To-Order Assembly Shop, Rodney G. Peterson Jan 1965

A Study Of Dispatching Priority Rules In A Make-To-Order Assembly Shop, Rodney G. Peterson

Theses and Dissertations

The prime purpose of this study was to investigate the effects of various dispatching policies in a particular class of production shop, the make-to-order-assembly shop. Since no model existed or this type of shop, it was necessary to formulate a general model.


Lot Feeding Of Beef Cattle. 1. Introduction, W J O Wilkie Jan 1965

Lot Feeding Of Beef Cattle. 1. Introduction, W J O Wilkie

Journal of the Department of Agriculture, Western Australia, Series 4

"LOT FEEDING" of cattle is the name given to the operation of bringing cattle in from pasture and giving them the total ration they are to receive in open or partly roofed yards.

The roof would be intended to protect the feed trough and not the cattle.


An Evaluation Of Equivalent Grades Of Sintered Carbide Inserts, Bruce R. Rauhe Jan 1965

An Evaluation Of Equivalent Grades Of Sintered Carbide Inserts, Bruce R. Rauhe

Theses and Dissertations

This paper includes the results of a test which statistically proves the lack of equivalent performance between the grades of carbide recommended for industry code C-6. Also included is a suggested method for recoding the current industry codes which will better describe quantitatively the various cutting situations for which carbide grades are recommended.


Exonomic Lot Size In A Series Manufacturing Operation, Dwight W. Satermo Jan 1965

Exonomic Lot Size In A Series Manufacturing Operation, Dwight W. Satermo

Theses and Dissertations

The series station system is a manufacturing operation consisting of a sequence of processes. Two proposed methods are presented in this paper which employ straight enumeration of all possible solutions and an iterative type of solution. A dynamic programming model of the system is also formulted.


A Study Of The Relationship Between Heat Treatment And Machinability Of The 18% Nickel Maraging Steel, Kemble Widmer Ii Jan 1965

A Study Of The Relationship Between Heat Treatment And Machinability Of The 18% Nickel Maraging Steel, Kemble Widmer Ii

Theses and Dissertations

The object of this thesis is a study of the possible differences that may exist in the machinability of the 18% Nickel Maraging steel, when specimens have been subjected to a variety of heat treatments prior to machining.


On The Selection Of Control Lines For X Charts On An Economic Basis, Vincent J. Graziano Jan 1965

On The Selection Of Control Lines For X Charts On An Economic Basis, Vincent J. Graziano

Theses and Dissertations

This paper proposes a procedure for determining, through simulation, the multiple of sigma that should be used to maintain the current control of a process. This is done by minimizing the cost of the operation of the control chart program and any income loss which may accure from the interaction of the causal variables.


Evaluation Of Two Methods Of Assembly Line Balancing For Various Levels Of Constraint, Harry M. Louden Jan 1965

Evaluation Of Two Methods Of Assembly Line Balancing For Various Levels Of Constraint, Harry M. Louden

Theses and Dissertations

The problem of balancing an assembly line in an industrial situation is that of providing each of a series of work positions with as even and compact an allocation of the total direct work content as possible while observing any restrictions on the sequence of operations imposed by the product or process. A procedure for evaluating the flexibility of a line is proposed.


Forecasting Manpower Requirements In A Manufacturing Group, David W. Dietrich Jan 1965

Forecasting Manpower Requirements In A Manufacturing Group, David W. Dietrich

Theses and Dissertations

This thesis introduces a computer-oriented system for forecasting Manpower Requirements in a manufacturing group. Included is a critical analysis of the system as it was applied in several actual manufacturing situations.


Dislocations And Deformation Produced By Ultrasonic Welding Techniques In Single Crystal Silicon, Frank Joseph Riffel Jr. Jan 1964

Dislocations And Deformation Produced By Ultrasonic Welding Techniques In Single Crystal Silicon, Frank Joseph Riffel Jr.

Theses and Dissertations

A review of the literature concerning the metallurgy of silicon, particularly those characteristics which affect its use as a semiconductor, is presented. Dislocations and deformation processes are then discussed with reference to techniques used to observe them.


Fisher Randomization Test Calculations Formulated For A Computer, Gene Wayne Gaarder Jan 1964

Fisher Randomization Test Calculations Formulated For A Computer, Gene Wayne Gaarder

Theses and Dissertations

The particular randomization test considered in this thesis is called the Fisher Randomization Test for Matched Pairs. It is a powerful nonparametric test. However, the calculations involved in performing the test become unwieldy unless the set of difference data is small.


A Study Of The Relationships Between Wear And Deformation For Carbide Cutting Tools, John J. Burbridge Jan 1964

A Study Of The Relationships Between Wear And Deformation For Carbide Cutting Tools, John J. Burbridge

Theses and Dissertations

This thesis attempts to show how deformation contributes to wear processes and how deformation is related to flank wear as represented by the general wear curve.


The Training And Retraining Of Personnel, Jorge De La Mora Jan 1964

The Training And Retraining Of Personnel, Jorge De La Mora

Theses and Dissertations

The introduction of automated machinery in industry and the new technological advancements have caused the labor force to abandon their working areas due to the lack of skills. Although new equipment has created new jobs, the working force has not been prepared to undertake them.


A Study Of The Effects Of Ambient Air, Spray Mist, And Flood Cooling On The Wear-Temperature Relationship And The Surface Finish-Temperature Relationship For Carbide Cutting Tools, Ernest Arthur Remus Jan 1964

A Study Of The Effects Of Ambient Air, Spray Mist, And Flood Cooling On The Wear-Temperature Relationship And The Surface Finish-Temperature Relationship For Carbide Cutting Tools, Ernest Arthur Remus

Theses and Dissertations

The effect of temperature on tool wear in cutting metal with a carbide tool - with three distinct type coolants, ambient air, flow coolant, and spray mist - is the subject of this investigation.


An Experimental Method For Determining The Shear Plane Angle, Clark David Sachse Jan 1964

An Experimental Method For Determining The Shear Plane Angle, Clark David Sachse

Theses and Dissertations

In this thesis an empirical relationship is developed that can be used to predict the shear plane angle for AISI C1020 HRS once the cutting conditions have been selected and without the necessity of conducting a trial cut.


The Role Of Public Transportation In Hamburg, Germany, Vukan R. Vuchic Jan 1964

The Role Of Public Transportation In Hamburg, Germany, Vukan R. Vuchic

Departmental Papers (ESE)

Hamburg is making serious efforts to solve the transporta­tion problem, common to most European cities-how to provide facilities to meet the rapidly increasing requirements of modem transportation and, at the same time, preserve the city's values by maintaining historic and other buildings, structures, and, particularly in the central area, its character. Being a large and relatively rich city with progressive ideas, Hamburg has accom­plished some remarkable achievements in this field. The purpose of this article is to delineate some of those achievements, particularly in public transportation.


Your Light And Your Sight, M S. Pickett Jan 1964

Your Light And Your Sight, M S. Pickett

Journal of the Department of Agriculture, Western Australia, Series 4

Good lighting in the home is essential to the comfort and wellbeing of all family members.

Though light needs vary for different age groups and tasks, it's important to have the proper lighting for your home.


Least Squares Analysis Of Inspection Results To Estimate Inspector Bias And Efficiency, David Thomas Smith Jan 1964

Least Squares Analysis Of Inspection Results To Estimate Inspector Bias And Efficiency, David Thomas Smith

Theses and Dissertations

A method of analysis which separates inspector variation from true product variation in the inspection data is introduced.


Have The Best Of Light In Your Home, M S. Pickett Jan 1964

Have The Best Of Light In Your Home, M S. Pickett

Journal of the Department of Agriculture, Western Australia, Series 4

The last article in this series discussed the amount of light needed in the home. Now let's consider the quality of home lighting.

Lamps and fixtures properly selected and placed will give you the right light in the right place.


An Investigation Into The Application Of The Progress Function To Floor Space Planning, Don Carlos Jeffers Jan 1964

An Investigation Into The Application Of The Progress Function To Floor Space Planning, Don Carlos Jeffers

Theses and Dissertations

In this thesis, the problems faced in the application to floor space are brought out in such a manner as to fortify the practitioner with sufficient knowledge to apply the Progress Function.


Lehigh University Undergraduate Information System, Gordon H. Bradley Jan 1964

Lehigh University Undergraduate Information System, Gordon H. Bradley

Theses and Dissertations

This thesis describes the information system Lehigh University maintains to gather, use and store data on the undergraduates and boys who apply for admission to the undergraduate colleges.


Residual Stresses In Automatically Welded Plates, Manfried Lohrmann Jan 1964

Residual Stresses In Automatically Welded Plates, Manfried Lohrmann

Theses and Dissertations

A summary is presented of an experimental investigation of the residual stresses produced in plates by submerged-arc welding process.


Algorithms For The Solution Of A Mutli-Stage Allocation Problem, Raymond K. Noonan Jan 1964

Algorithms For The Solution Of A Mutli-Stage Allocation Problem, Raymond K. Noonan

Theses and Dissertations

The objective of this paper is to develop an algorithm for the solution to a multi-stage transportation problem with non-linear cost functions and to investigate the effect on the ease and validity of solution of the transportation problem of costs and flexibility.


A Study Of A Proposed Production And Inventory Control Model Formulated By Combining A Linear Cost Manpower Adjustment Rule With Modigliant And Hohn's Quadratic Production Cost Model, Ivy Homer Atkins Jr. Jan 1964

A Study Of A Proposed Production And Inventory Control Model Formulated By Combining A Linear Cost Manpower Adjustment Rule With Modigliant And Hohn's Quadratic Production Cost Model, Ivy Homer Atkins Jr.

Theses and Dissertations

A production and inventory control model is formulated by adding a manpower adjustment rule to Modigliani and Hohn's quadratic production cose model. Application of the proposed model is restricted to industrial shops whose capacity is limited only by the size of the work force.