Engineering Commons^™

Computer Simulation Of The Human Hypophysial-Ovarian System, Robert Charles Blencowe

Theses

In order to more adequately simulate the human pituitary-ovarian cycle further refinements were made to the original Bogumil and Feng computer models. This involved the inclusion of equations which mathematically describe the peripheral conversion of prehormones and a subroutine showing the effect of plasma proteins, TeBG, CBG, and albumin on the total concentration of estradiol, progesterone, testosterone, androstenedione, dehydroepiandrosterone and estrone.

Once the models were functioning properly, values for the normal state and for the disease condition, Polycystic Ovary Syndrome (PCO), were obtained. In most cases there exists good agreement between the results reported in the literature and those generated …

Designing Cost Effective Pump Suction Systems Using Statistical Correlation Techniques To Estimate Vessel Elevation Costs, Neil J. Bernstein

Theses

In order to minimize total costs (investment plus operating costs) when elevating process equipment to meet hydraulic requirements, it is essential to establish cost effective and energy efficient pump suction systems. During the early stages of design of such systems it is most critical that preliminary costs be determined in a timely manner to avoid job delays. One method of accomplishing this is through the use of a cost estimating relationship for defining the price behavior of alternative pump suction systems. This thesis describes the procedure used to develop a mathematical model to predict the cost of elevating vertical drums. …

Industrial Parameters For Applying New Technology, Michael Cimino

Theses

Industrial Parameters for Applying New Technology is a paper devoted to the study of the role 'of' robots in today's manufacturing environment. Industry looks forward to robotic technology to solve, its declining productivity dilemma. The purpose of this paper is to' aid a Prospective robot buyer in selecting the appropriate application and in particular a suitable robot for that application. A listing of robot performance characteristics, criteria chart, and evaluation table were developed to guide the engineer through the necessary steps required in selecting a successful robot application.

The history of robotics is discussed briefly along with an explanation of …

A Study Of Personal Conflict And Stress Among Engineering Personnel As Influenced By Corporate Policy, Stated And Unstated, Richard Brian Gordon

Theses

The following concepts are being challenged: That organizations are efficient, well-managed, and intelligent: that if one is to believe in any sort of authority, one must first accept the notion that it truly knows best and that it is not only competent, but well-intentioned; that organizations exist for the benefit of their employees and customers; that organizations reward dedication, competence, and performance: that if the organization is to grow it needs loyal sacrificing people; that organizations are dynamic and receptive to change; that if the employee is discouraged, do not worry, for tomorrow will be better; that to be useful …

Designing A Data Management System To Support A Quality Control Mission, Erastus Runji Muchioki

Theses

This thesis is concerned with the design of a Data Management System to support a Quality Control Mission particularly within the writer's organization. It defines the term quality, with respect to his company's needs, followed by an outline of quality control management's responsibilities. Problems of quality Control from product design, assembly to the finished product are discussed. The organization's current quality control procedures are analyzed. Problems in establishing the data base are discussed. This data is then organized to form the new Data Management System that will support a Quality Control Mission properly. In the discussion, the author tries to …

Managing In The Technical Sales Arena, Robert Munro

Theses

The major objective of this thesis is to portray the role of a Field Engineer for a major manufacturer of electrical distribution and control equipment. In so doing, it should represent a reasonable facsimile of what a sales manager of a large Field Office, comprised of approximately twelve Field Engineers, would encounter in his supervisory capacity. As such, it should provide information for those interested in entering and hoping to manage in technical sales career.

While much of the information was derived from books, periodicals, and conversations with people associated with the electrical industry, the major portion of the work …

Gallium Nitride Film Deposition By Ionized Cluster Beam Epitaxy, Ghulum Bakiri

Theses

An experimental Ionized Cluster Beam System similar in design to the one developed at Kyoto University in Japan was. designed and constructed in the Microelectronics Laboratory at NJIT. This involved making the working drawings, having the parts machined and then assembling the system in a vacuum system together with the necessary variable power supplies, meters, controls, gas inlets, cooling water connections, etc.

Eleven deposition runs were then attempted to grow gallium nitride utilizing the system constructed. In a typical deposition run, gallium was vaporized from a boron nitride crucible at 1000° C and allowed to expand through a 0.5 mm …

One-Dimensional Compressible Flow Analysis : Isentropic And Normal Shock, Su-Bo Wong

Theses

A computer program to compute and analyse one-dimensional isentropic compressible flow through variable cross-sectional area with or without a normal shock is developed. The program is written in the "FORTRAN LANGUAGE".

In this work, the area change is the predominant cause of change of flow condition. One of the advantage of this program is set on general uses for isentropic flow. In common practice, the values of the isentropic flow property ratios were tabulated or graphically presented as function of the Mach number with a specified specific heat ratio, K (normally K=1.40 was presented). With todays technology, the most versatile …

Managing And Controlling The Manufacturing Operations, Harish Doshi

Theses

No abstract provided.

An Application Of Personal Microcomputer To Solve Mid-Sized Goal Programming Problems, Chanhon Joe Lu

Theses

This thesis develops a microcomputer software to solve mid-sized goal programming problems utilizing the revised simplex method.

Goal programming is an extension of linear programming, but is more powerful and flexible than linear programming because of its capability in handling problems with multiple conflicting objectives, instead of dealing with "one dimensional" objective - profit maximization or cost minimization. Accordingly, goal programming is very useful to the complex organizational environments.

With the help of rapid and accurate computation of digital computers, solving a complex program is not a difficult task at all. However, some medium-sized companies cannot afford a mainframe -computer, …

Automated Instrumentation System For Studies Of Metabolic Rates In Rats, Suhas P. Pathak

Theses

The task of the instrumentation system is to measure the respiratory exchange in rats in a controlled experiment. Air is drawn at a predeter-mined rate in and out of rat chambers. The proportion of oxygen and carbon dioxide in the ensuing air indicates the respiratory rate of the rat. The entire operation is controlled by a microcomputer whose most important functions are: to direct the flow of air through the rat chambers by switching valves; and to collect data about the percentages of gases in question.

Thus with the help of a computer it is possible to monitor and control …

An Assessment Of Job Attitudes Held By Hourly Workers At A Food Processing Plant, Charles J. Sheahan

Theses

This study applied Vroom's instrumentality-valence model to an assessment of the overall job attitude of hourly workers at a food processing plant. The specific job factors relating to the formation of overall job attitude are described and the managerial implications of the results are discussed. A short discussion of the relationship of these employees' attitudes to Herzberg's motivation-hygiene theory is also presented.

The results of the study indicate a moderate degree of job satisfaction based on Vroom's model. Additionally, the correlations of specific instrumentality to specific valence give a strong indication that the subjects value rewards they perceive as attainable, …

Liquid Transmission Line Pulser Circuit For Laser Excitation, Carl Stultz

Dissertations and Theses

The subject of this thesis is the study of liquid dielectric transmission lines and their potential application as an excitation source in high speed, high-repetition rate laser designs. The design problems associated with the construction of high repetition rate (khz), short wavelength lasers have been reviewed and the major shortcomings of conventional electrical driving circuits identified. The identification of these shortcomings and a review of the available literature on electrical circuits for various types of lasers suggested that liquid dielectrics and transmission lines could potentially have significant advantages over more conventional circuitry used in high repetition rate, short wavelength lasers. …

Molded Wood Particle Products Including Integrally Joined Intersecting Members, Bruce A. Haataja

Michigan Tech Patents

A molded product formed from wood flakes intermixed with a binder and a first elongated member formed from elongated wood flakes compressed and bonded together with a binder, the wood flakes having a grain direction extending generally parallel to the longitudinal axis of the flakes and the flakes being generally oriented in alignment with the longitudinal axis of the first elongated member. A second elongated member intersects the first elongated member and is integrally joined to it. The second elongated member is also formed from elongated wood flakes compressed and bonded together with a binder, the wood flakes being generally …

Interfacial Electrical Properties Of Ion-Beam Sputter Deposited Amorphous Carbon On Silicon, A. Azim Khan, John A. Woollam, Y. Chung, B. Banks

Department of Electrical and Computer Engineering: Faculty Publications

Amorphous, “diamond-like” Carbon films have been deposited on Si substrates, using ion-beam sputtering. The interfacial properties are studied using capacitance and conductance measurements. Data are analyzed using existing theories for interfacial electrical properties. The density of electronic states at the interface, along with corresponding time constants are determined, and the density of interface states is unusually low for an as yet unoptimized

Acuta Enews May 1983, Vol. 12, No. 5

ACUTA Newsletters

In This Issue

GETTING AHEAD IN TELECOMMUNICATIONS

ASSESSING ORGANIZATIONAL EFFECTIVENESS

IMPROVING THE QUALITY OF WORKING LIFE

CONCLUSION

Hydraulic Model Study Of Hyrum Dam Auxiliary Labyrinth Spillway, Kathleen L. Houston, U.S. Department Of The Interior, Bureau Of Reclamation, Division Of Research, Hydraulics Branch

All U.S. Government Documents (Utah Regional Depository)

The updated IDF (inflow design flood) for Hyrum Reservoir could not be passed with the existing hydraulic structures. The labyrinth was the most economical alternative for an auxiliary spillway. The labyrinth spillway, a series of trapezoidal shapes in plan form, would provide the necessary spillway length and capacity within a comparatively small width. The spillway configuration was based on design curves developed in the Bureau of Reclamation Hydraulic Laboratory.

The 1:30 scale model included the upstream approach channel, the labyrinth spillway, and a transition section leading to a long sloping chute. The model confirmed the maximum discharge of the spillway …

Traffic Accident Rates In Kentucky (1981), Kenneth R. Agent

Kentucky Transportation Center Research Report

The primary objective of this study was to determine average accident statistics in Kentucky for 1981. Those statistics could then be used in Kentucky's high-accident location identification program. Similar statistics were determined in 1978 and 1980. The objective is to calculate rates on an annual basis to allow the most recently available data to be used as well as the possibility of combining several years of data or conducting trend analyses.

Average accident rates were calculated using several methods of classifying highways. A series of tables were prepared giving criteria that may be used to determine whether specific locations have …

A Checklist And Sample Specifications For Front End Loaders, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

Attached is a checklist and sample specifications for purchasing front end loaders for use in the maintenance of Indiana's local roads and streets.

This checklist and the sample specifications provide for individual preferences. They are not intended to dictate decisions or restrict bidding. If followed, they will assure a durable piece of maintenance equipment well suited for the uses placed on front end loaders by Indiana Counties, Cities and Towns.

A general observation of those with experience is that reducing specification requirements to obtain a lower first cost is nearly always a poor economic decision.

Field Evaluation Of An Impact Testing Device For Measuring Base Course Strength, Norman W. Garrick

Indiana Local Technical Assistance Program (LTAP) Publications

This publication documents the factors that affect the use of the Clegg Impact Tester, for measuring in-situ, the load-carrying capacity of unpaved low-volume roads and to assess the suitability of this device for that purpose and to initiate the development of guidelines for its use.

A Master Clock For The Speed School Impulse Clock System Using Wwv Time Information, John E. Pfeifer Jr.

Electronic Theses and Dissertations

Since approximately February of 1979, the Speed School impulse clock system has not functioned due to a worn-out master clock that was never replaced because of a lack of fund. For this thesis project, a solid-state master clock that performs the same functions as the old mechanical master clock was built for less than $200. The new clock features accuracy traceable to the National Bureau of Standards, automatic reset after a power-down and subsequent power-up, and a daylight savings time provision. A decoder that recovers time information broadcast by radio station WWV from Fort Collins, Colorado was built and interfaced …

Time-Resolved Two-Dimensional Imaging Of Ground-State Species Using Laser-Induced Fluorescence, R. A. Dougal, P. F. Williams, D. C. Pease

P. F. (Paul Frazer) Williams Publications

Laser-induced fluorescence has been employed to obtain two-dimensional images of the spatial distribution of a vapor in the ground state with nanosecond resolution. The method has a wide range of potential applications, as it can be used to observe any species which has energy levels accessible to tunable laser systems. In the application we describe, aluminum vapor was observed jetting from spark gap electrodes and diffusing throughout the gap volume.

Nonpoint Source Pollution To Bear Lake, Utah-Idaho: Magnitude, Periodicity, And Watershed Management Alternatives, Victor J. Kollock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

From April of 1981 to June of 1982 a Clean Lakes Program Phase 1 Diagnostic Feasibility Study was conducted on Bear Lake, a 282 km² (109m²) fresh-water lake located in southeastern Idaho and northeastern Utah. A portion of this Clean Lakes Program required an itemized inventory of all nonpoint sources affecting the lake's water quality.

A 16 month lake tributary monitoring program, which included the spring runoff periods of 1981 and 1982, provided data from which nutrient loading values (kg/day and kg/yr) were calculated. Analysis of these data, along with land use percentages within the Bear Lake …

Evaluating The Design And Operation Of Irrigation Canals In Egypt, Amany El Kayal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A computer simulation model for temperature data was developed in order to generate synthetic daily temperature. The model consists of two components: a deterministic component represented by a Fourier series fit, and a stochastic component represented by an autoregressive model. The simulation model was proven to be able to preserve the main statistics of the historical series.

The data generated by the above temperature model were used as an input to an irrigation water requirements simulation model. This model incorporates the probabilistic nature of these requirements. The irrigation system of Abo Raya area in Egypt was used to demonstrate the …

A Heat Pump Assisted Shower, Jim Mcgovern

Articles

An energy-efficient water-heating system for a shower is proposed consisting of a low-powered heat pump, a storage tank and an instantaneous heater which, it is felt, may yield a favourable overall cost, in addition to reducing the primary energy consumption. Some preliminary work has been carried out in exploring this concept. It was considered at the outset that an overall coefficient of performance (COP) of 2 should be readily achieved. Values close to this have been realised with the first experimental prototype.

H & V News

Building Services Engineering

No abstract provided.

Radio-Frequency-Excited Carbon Dioxide Metal Waveguide Laser, Jonathan Gary Grossman, Lee W. Casperson, O. M. Stafsudd

Electrical and Computer Engineering Faculty Publications and Presentations

A new type of waveguide laser is described in which a single-surface concave metal waveguide also doubles as the grounded electrode in a radio-frequency-excited gaseous discharge. The laser’s output modes and spectrum have been studied theoretically and experimentally for cw CO₂ operation of the laser. Overall operating efficiency and mode stability are comparable with those of conventional dielectric waveguide CO₂ lasers, and advantages of the metal waveguide laser include convection cooling, intracavity mode control, and partial self-alignment.

Broadband Base Isolated Asymetrically Fed Vhf Antenna, Peter Edward Cunningham

Dissertations

Antennas presently being used for vehicular military VHF communications are narrowband. New generation frequency hopping radios, however, require broadband antennas. The antenna must be base isolated in order to reduce undesirable pattern nulls and impedance variations caused by currents induced on the support structure. Physical constraints limit the antenna length to three meters while operating from a frequency of 30 MHz to 88 MHz.

To satisfy the above requirements a model of a broadband, base isolated, cylindrical antenna less than three meters long was analyzed and built. Equations for the current distribution as a function of the physical parameters were …

Acuta Enews April 1983, Vol. 12, No. 4

ACUTA Newsletters

In This Issue

Q&A

BITS & PIECES

ANSWER TO FREQUENTLY ASKED QUESTIONS ABOUT STORE & FORWARD VOICE SYSTEMS

FUNCTIONAL INTEGRATION

WHY DATA TALKS AND VOICE WALKS

An Update On College And University Programs In Air Pollution Control, Harold M. Cota

Civil and Environmental Engineering

A survey of academic programs in air pollution control was made. Results from the 127 schools reporting are tabulated by state. Faculty involved in air pollution instruction are identified. Some conclusions and recommendations are presented.