Digital Commons Network^™

A Synthesis Of Modern Rail Transportation Engineering Practices, Donald D. Cook

Open Access Master's Theses (through 2010)

The 1970’s will go down in history as the decade in which the University of Nebraska – Civil Engineering Department expanded its academic interest to include the field of transportation. Railroad transportation and activities related to the instruction of planning, design and operation of railroads become a most important part of the transportation curriculum when viewed in the above context. Unfortunately, no modern comprehensive textbook exists for use in a rail transportation course.

The intent of this thesis is to provide a comprehensive source of data for use in the course of study in Railroad Transportation being developed by the …

How To Use Electronic Information Exchange System, Computerized Conferencing & Communications Center, Murray Turoff, Trudy Johnson-Lenz, Peter Johnson-Lenz

Computerized Conferencing and Communications Center Reports

This booklet is an introduction to the use of EIES, Electronic Information Exchange System. EIES (pronounced "eyes") is a very powerful computerized system that allows you to communicate with others on the system in a number of different ways. The intent of this booklet is to teach you the simpler parts of the system and to make you comfortable with using the one-page User's Guide For Electronic Information Exchange System. Later on, as you gain more experience with EIES, you may want to learn some of the more advanced features and tricks. EIES has been designed so that you have …

Error Codes In Digital Data Communication Systems, Robert Hadley Cravens

Dissertations and Theses

Today’s digital communication systems perform data transfers at the rate of millions of bits per minute, with data errors in the order of 1/6th error per day. This magnitude of errorless communication is now possible because of sophisticated error correcting codes. Many types of error codes are employed today in three distinct areas of digital data communication: human to computer; data source to computer; computer to computer; and intra-computer; we are concerned here with intra-computer communication.

This research is primarily a mathematical study of error codes in general to explore the possibilities of each major type for the purpose of …

An Approach To Energy Conservation In A Manufacturing Industry, William Polignano

Theses

The approach attacks the problem of control and planning of energy usage via three major categories. These areas are: detection, forecasting and reporting of energy usage.

To initiate any energy program the first step, is the identification of the areas that use the most energy, thus allowing detailed studies to be concentrated in these energy-intensive areas. The author has attempted to show which areas are energy-intensive in his employer's plants.

The second step is the accurate forecasting of energy usage. The author has attempted this via an econometric forecasting model that accurately predicts energy usage based on direct labor hours …

Ecuador And A Business Opportunity, Cesar Arturo Paredes Roldan

Theses

As a result of its recent status as a petroleum exporting country, Ecuador is enjoying an economic boom, which is expected to lead to the formation of new enterprises, the creation of jobs, the utilization of human and natural resources and the encouragement of harmonious development of the national economy.

This thesis is based on the belief that the private sector must assume a decisive role in the adequate implementation of Ecuador's industrial development programs, and it aims to show the feasibility of establishing there an enterprise that would manufacture domestic electric irons.

The coverage of the subject comprises three …

Naturally Occurring Organic Compounds Found In Hyrum Reservoir, Utah, Russell Richard Renk

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Methods of collecting, concentrating, separating, and identifying organic compounds in natural water systems are presented. These methods were applied to a eutrophic reservoir (Hyrum Reservoir, Utah) and resulted in the identification of the following 27 volatile, organic compounds:

Alcohols: methanol, ethanol, 1-propanol, isopropyl alcohol, 1-butanol, 2-butanol, isobutyl alcohol, tert-butyl alcohol, 1-pentanol, 2-methyl-l-butanol, methyl-1- butanol, 3-methyl-2-butanol, 2-methyl-2-butanol, 2-methyl-3-buten-2-ol, 1-penten-3-ol, 2-methyl-2-pentanol

Ketones: acetone, methyl ethyl ketone, 4-methyl-3-penten-2-one

Aldehydes: acetaldehyde, propanal, 2-buten-1-al

Others: acetonitrile, ethyl acetate, pyridine, 3-methylpyridine, diethyl ether

The concentration level of the following 13 compounds was established in the reservoir from October 1974 to January 1976:

Alcohols: methanol, ethanol, propanol, …

A Study Of Geologic Hazards And Geotechnical Input For Selected Critical Facilities - Cache Valley, Utah, Kenneth Robert Green

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Important public facilities located in Cache Valley, Utah, were studied to assess their exposure to geologic hazards. Also, the level of geotechnical and geologic expertise involved in the siting, design, and construction of critical public facilities was studied. A discussion of several individual facilities, that were exposed to some degree of hazard, was presented to illustrate the nature of the problem.

Earthquake hazards probably constitute the greatest threat to facilities and to the general welfare of the public. Many earthquake hazard mitigation measures were discussed and recommendations were made, based on aseismic design criteria which has been developed for seismically …

Salt Production From Micro-Channels In The Price River Basin, Utah, Richard Bruce White

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt production from micro-channels in the Price River basin of east-central Utah was studied using artificial inputs in order to better define the general sources and processes involved in diffuse source salt release within the basin. An attempt was made to determine what factors are most significant in relation to salt release. The study revealed that the micro-channel systems are highly heterogeneous in relation to salinity. This natural variability tends to increase as the salt content of the channel increases.

The Bluegate member of the Mancos shale was found to be the prime source of salt within the basin. Gypsum …

Ua64/3 Readout, Wku Industrial Education & Technology

WKU Administration Documents

Newsletter includes articles:

• Renovation of Industrial Education Building Nearing Completion
• Tomazic, Norman. Basic Industrial Education: Futures Oriented "Sabre-toothed" Curriculum?
• Conley, Franklin. Comments re: departmental news
• New Electricity / Electronics Facilities
• WKU Student Receives KIEA Scholarship, Bonnie Thomerson
• Zax, Carol. Communication & Interaction
• Pittman, Frank. Guitars, Guitars, Guitars re: Hascal Haile
• IE&T One-Liners
• Walter Nalbach Scholarship Fund

Acuta Enews April 1977, Vol. 6, No. 4

ACUTA Newsletters

In This Issue

PRESIDENT'S MESSAGE

EDITORIAL

COMMUNCATIONS CONSULTANTS

FEATURED INSTITUTION

ANNUAL REPORT

BOARD OF DIRECTOR'S MEETING

NEW MEMBERS

1978 CONFERENCE DATES

MAJOR TELECOMMUNICATIONS CONFERENCE

PROPOSED BUDGET 1977-78

Precise Frequency Control Of The Voltage Controlled Oscillator Using Finite Digital Word Lengths, Timothy Peter Hulick

Electrical & Computer Engineering Theses & Dissertations

For an oscillator that is periodically swept in frequency between some upper and lower bound, the output amplitude may easily be made constant and therefore known with a high degree of certainty. The instantaneous frequency exists only at a point in time and therefore possesses a zero probability of existing at any point. This thesis deals with the development of a method for interchanging the probability density functions of amplitude and frequency so that the latter becomes known with certainty while the former is known only to the extent that it is within a certain range.

The method developed makes …

Plutonium Assessment Modeling -- Government Policy, Non-Proliferation, And The Government Fence, Harold A. Kurstedt Jr., Joel A. Nachlas

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Assessment modeling for the evaluation of plutonium as an energy resource is stressed, and generic mathematical model forms are outlined. Representative necessary objective functions are developed. Constraints and assumptions are listed. An example involving present-day light water reactor technology is demonstrated. Technical, environmental, and political implications are drawn. Specific new directions for analysis are suggested. The position of the boundary of government control and responsibility -- the government exclusion fence -- is shown to be a critical, but overlooked, constraint. Existing governmental uranium stockpiles may be an unmentioned, though important, constraint.

Programming Language Requirements For Human Communication Structures Or Computer Conferencing, Computerized Conferencing & Communications Center, Peter Gordon Anderson

Computerized Conferencing and Communications Center Reports

Our overall goal is to be able, simply and quickly, to construct computer conferencing systems for new requirements, applications, and even experimental ideas or fantasies. One way to view this requirement is as the creation of a highly parameterized conferencing system itself. Our view, however, is that of a programming language; i.e., an integrated notational system for the specification of communication structures and the associated actions or computation to be taken by the computer system hosting the structure.

A communication structure consists of a group of people (and storage devices) each endowed with some characteristics, and some means of person-to-person …

Ua1b1/1 Rodes-Helm Lecture Series Scrapbook, Western Kentucky University

WKU Administration Documents

Scrapbook of programs, photographs and press clippings regarding the following Rodes-Helm Lecture Series speakers:

• Arthur Schlesinger
• Pearl Buck
• Buckminster Fuller
• Chet Huntley
• Art Linkletter
• Nancy Dickerson
• Vincent Price
• William Buckley
• Richard Leakey
• Alvin Toffler
• John Ferguson
• Charles Kuralt

Missouri River, South Dakota, Nebraska, North Dakota, Montana Review Report For Water Resources Development, Volume 1 Of 3

United States Army Corps of Engineers, Omaha District

This study investigated a wide range of water resource problems and opportunities related to the Missouri River and the six main stem dams along an area extending over 1.500 miles from Sioux City. Iowa to Three Forks. Montana. Subjects of the study were: the feasibility of installing additional hydro-power generating units both at the main stem dams and adjacent to the river; resolution of bank erosion, waterlogging, and residual flood problems; opportunities for recreation, fish and wildlife enhancement; operating plans of the main stem system considering future water use; and potential for extending navigation upstream from Sioux City. Iowa.

Several …

Us Army Foreign Science And Technology Center, Unit History, Fy 1963-Fy 77 (Unredacted), Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This document is a basic organizational history of the Foreign Science and Technology Center (FSTC). It describes how FSTC was built out of various Army technical intelligence organizations; traces its relocations eventually culminating in settling into a federal building in Charlottesville, VA; and traces its various reorganizations and changes in staffing.

Appendix A contains a detailed discussion of FSTC Table of Distribution and Allowances (TDAs) changes over the years. That analysis shows how administrative problems were handled and how the focus of the organization had changed over the years. It also contains organizational charts corresponding to new TDAs, and tables …

Analysis Of Switching Regulator Power Supply, Chang Il Lee

Retrospective Theses and Dissertations

No abstract provided.

The Silicon Solar Cell As An Optical Detector, Stephen O. Saltsman

Retrospective Theses and Dissertations

The optical detector characteristics of a silicon solar cell are examined. A general equivalent circuit model is developed and typical parameter values are determined. A comparison is made between the photovoltaic and short circuit operating modes and the short circuit mode is shown to be preferable in terms of linearity, extended frequency response, and temperature stability. A method is developed to determine the noise characteristics of the amplifier-detector system used in the short circuit mode. The silicon solar cell is shown to be an economical alternative to standard photodiodes in low to medium data rate systems.

Application Of Fire Protection Models In Urban Planning, Ronald George Thomas

Retrospective Theses and Dissertations

No abstract provided.

A Model For Solid Waste Collection Costs, Bruce Anderson

Retrospective Theses and Dissertations

No abstract provided.

Functional Cost Estimating Techniques Applied To Operational Flight Trainers, James H. Gardner

Retrospective Theses and Dissertations

No abstract provided.

Distributed Computing Systems: An Overview, Haim Schwarzkopf

Retrospective Theses and Dissertations

Associative processors, parallel processors, content addressable parallel processors, networks, and other architectures have been around the computing scene as "Distributed Processing", for some time now. Several hundred papers have been written discussing their use and design but so far no academic work has tried to summarize the field called "Distributed Processing" using a systems approach. This research report attempts to remedy this lack. It attempts to gather into one place information that existed as of late 1976 in a format easily understandable by managers and systems engineers. The report deals also with certain issues of centralization and decentralization of EDP …

Computer Simulation Of 911 Emergency Telephone System For Orange County, Florida, Ronald J. Veillette

Retrospective Theses and Dissertations

The State of Florida has mandated that a statewide 911 system be implemented, and the Department of General Services, Division of Communications, has performed a study of possible 911 system configurations for Orange County based on the findings of a study performed by the Stanford Research Institute for the whole of the State of Florida. The Orange County study determined operator manning levels of the primary law enforcement agencies involved in the system and response times to citizen calls for each of the configurations proposed. This research generated computer simulation models of the two most likely to be implemented configurations …

The Sun's Wind, Alexei Leonov

Articles

This book is on display here for educational purposes only.

Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].

Written and illustrated in 1977 by Soviet cosmonaut Alexei Leonov.
Published by Progress Publishers in Moscow

A Laser Hydrophone, Steven Kenneth Barnoske

Retrospective Theses and Dissertations

This report proposes a novel technique for measuring of acoustic fields in water. A Laser Hydrophone is proposed taking advantage of the properties of Total Internal Reflection. A theoretical analysis of the idea is presented followed by a prediction of the operating characteristics of an actual system. Actual data were taken with the proposed system and it is compared to the predicted.

Simulation Of A Fiber-Optical Communication System, Patricia Kay Scheffel

Retrospective Theses and Dissertations

The feasibility of analyzing an optical communication system using standard electronic circuit analysis programs such as SCEPTRE and ASTAP is demonstrated in this thesis. The transmitter (laser and modulator) and receiver (detector and amplifier) are modelled using equivalent circuits for the various components. The transmission medium (optical fiber) is modelled using an impulse response function. Two fibers are investigated--a step-index fiber and a square-law (parabolic index) fiber.

A Liquid Crystal Light Valve Used In A Remote Sensor, William Alexander Kownacki

Retrospective Theses and Dissertations

A nematic liquid crystal cell is used in conjunction with a mirror retro-reflector to modulate a low-power laser beam. The object is to determine the feasibility of the combination in transmitting information from a remote sensor without a large energy source at that sensor. Analog modulation does not appear workable, but a digitally-encoded scheme is feasible.

Hardware And Software Considerations For Improving The Throughput Of Scientific Computation Computers, Glenn Allen Sullivan

Retrospective Theses and Dissertations

In this paper, hardware and software techniques are presented for improving the Throughput (defined as computations per dollar) of computing systems which are oriented towards high-precision floating point computations. The various improvements are referenced to a baseline of the PDP 11/20, the NOVA 1200, and the TI 960A, all 16 bit minicomputers. The most beneficial hardware improvement is the inclusion of a Floating Point Processor, which yields up to 200X Throughput increase over a software floating point package. The inclusion of a cache high speed local memory and the availability of Polish Notation format instructions are shown to provide less …

Glass In The Year 2000, Norbert J. Kreidl

Materials Science and Engineering Faculty Research & Creative Works

No abstract provided.

Experimental Study Of The Dynamic Response Of Highway Bridges : Interim Report, Peter Karl Kropp

JTRP Technical Reports

No abstract provided.