Digital Commons Network^™

Rural Recreational Travel In Kentucky, Jerry G. Pigman

Kentucky Transportation Center Research Report

The purpose of this study was to develop a methodology for predicting travel patterns on routes leading to outdoor recreational areas in Kentucky. Data were collected by means of a license-plate, origin-destination survey at 160 sites within 42 recreational areas and by means of a continuous vehicle counting program at eight of these sites. Results indicate that the method of associating similar facilities is a reliable procedure for predicting traffic characteristics. Vehicle occupancy was found to depend on the type of recreational area, distance traveled, and vehicle type. Percentages of various vehicle types were also influenced by the type of …

Microprogramming For Probability Distribution Sampling, Theodore Gyle Lewis

Electrical and Computer Engineering Faculty Research & Creative Works

Microprogramming of special instructions for sampling of random variates from any probability distribution is a means of increasing sampling speed. The diversity of sampling techniques is narrowed to one general algorithm: conditional bit sampling. Conditional bit sampling uses a high-speed uniform random number generator based on feedback shift registers to sample one bit at a time. The probability of a bit being a one in the j-th position of a binary expanded variate is stored in a table of conditional probabilities. A comparison with the pseudorandom number yields a one or zero. The table of conditional probabilities is generated once …

An Experimental Investigation Of The Relation Between The Cooling Rate And Welding Variables In Fusion Welding, Sujit Biswas

Theses and Dissertations

In the field of welding metallurgy, much attention is given to the effects which the welding arc or flame will have on the structure and properties of the metals being joined. The engineer is interested in the intensity and extent of physical changes brought about by the unavoidable "heat treatment" which accompanies the execution of a weld.

Entropy Reduction Of English Text Using Variable Length Grouping, Vincent Norman Ast Jr.

Dissertations and Theses

It is known that the entropy of English text can be reduced by arranging the text into groups of two or more letters each. The higher the order of the grouping the greater is the entropy reduction. Using this principle in a computer text compressing system brings about difficulties, however, because the number of entries required in the translation table increases exponentially with group size. This experiment examined the possibility of using a translation table containing only selected entries of all group sizes with the expectation of obtaining a substantial entropy reduction with a relatively small table.

An expression was …

An Evolution In Education Individualization And Learning Activity Packets In Junior High Woodworking, Joseph Wysocki

Graduate Research Papers

The purposes of the study are:

(1) To show how education has evolved throughout American history; it has always taken the best of the past with it and amalgamated- it into its present; individualization has presently advantages which today's society needs to replace conventional programs.

(2) To explain the rationale for individualization.

(3) To give an explanation of the process of making learning activity packages.

(4) To provide learning packets for a course on machines in industrial education, namely lathe and band saw.

A Numerical Technique For Solving Rigid Body Impact On An Incompressible, Viscous Medium, Cecil Thomas Chapman

Civil & Environmental Engineering Theses & Dissertations

A technique for solving rigid-body impact on a viscous, incompressible medium is presented. The numerical scheme is adapted from the Marker and Cell (MAC) method developed to solve problems involving time-dependent motion of a viscous, incompressible fluid in two-dimensional space. As the pressure end velocity fields are computed throughout the flow field, the solution gives the force and displacement time history of the rigid-body during the impact phase. In conjunction with this, through a system of marker particles, the changes in configuration of the viscous medium on impact can be studied. With a "movie frame" (incremental time) approach, computational experimentation …

Analysis Of Decomposition Gases And Leach Water From Controlled Sanitary Landfill, Robert Gargano

Theses

A sanitary landfill was simulated by placing "refuse" between two layers of soil in 6" by 24" cylinders. Canine nutriment was used to simulate the refuse. Once the refuse began to decompose, the decomposition gases were collected in a gas cell and analyzed in an Infrared Spectrophotometer. When gas samples were not taken, the decomposition gases were vented through a water trap (to prevent air from backing up into the system) into the atmosphere. Distilled water was added and withdrawn at two week intervals to leach out the pollutants.

From the Infrared analysis, the decomposition gases were determined to be …

Computerized Computation Of Counter-Current Extraction Problems For Ternary Liquid Systems, Albert Warren Patterson

Theses

A Fortran computer program has been developed that will calculate the number of theoretical equilibrium stages required for a countercurrent liquid-liquid extraction design problem. It also furnishes a complete stagewise material balance. Further utility can be found by using it for optimization studies. The program can be utilized for three-component systems that form one pair of partially miscible liquids, the most frequently occuring situation. The program was written for the General Electric Mark I Time-Sharing System.

The program has a practical advantage in that isothermal liquid equilibria data are used directly for calculation purposes. No use is made of theoretically …

High-Intensity Reflective Materials For Signs, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

The intuitive need for improved sign legibility has increased through the years as traffic volumes, speeds and roadway designs have advanced. Because of increased traffic volumes, low-beam headlight illumination at night has become more imperative. Signs are being located farther from the travelled lanes; higher speeds are requiring messages to be more legible at greater distances (for driver decision and response). Recent studies have indicated that even Engineering Grade (2200 and 3200 Series) Scotchlite or materials designated as Type I, Class A in S.P. No. 89-A, may be inadequate for some signing situations. Signs may be made larger and(or) incorporate …

Effectiveness Of Training Programs For Graduate Engineers, V.C. Rajashekar

Theses

This thesis represents an investigation of effectiveness as a result of engineering training. The basic elements of effectiveness and its learning process are explained and said that the effectiveness could be learnt and improved.

The term training, is basically the process of education and training. But training cannot be performed as an individual, but is performed as a group. Therefore training a group with having so many individuals needs careful consideration in designing a training program.

In order to get the broadest possible picture of current thinking and current activity in the area of company training programs for graduate engineers, …

The Creep And Stress Relaxation Behavior Of Silver Bearing Copper Wire, Alfred Fox

Theses

Creep and stress-relaxation experiments were performed on silverless and silver bearing copper in the temperature range 73F to 250F. The creep experiments were conducted at constant load and temperature, the stress-relaxation tests at constant total strain and temperature for a total time period of 1000 hours. The effect of silver addition of up to 0.2 percent w/o (60oz per ton) on the creep and stress-relaxation behavior of spectrographically pure copper (99.999+ Cu) as well as on that of tough pitch and oxygen free coppers of lesser purity was studied. Spectrographically pure copper was found to be much more susceptible to …

Photo And Magnetic Gated Bi-Directional Counter, Charles Burdette Kraemer

Graduate Research Papers

The purpose of this study is to investigate digital counter circuitry, digital logic, and some special applications of digital display systems. The technical data and information ascertained from the research will be used to design and develop a four-digital counter with photo and magnetic gated inputs.

Neighborhood Satisfaction: A Study Of User Assessments Of Low Income Residential Environment, Henry Sanoff

International Symposia on Low Cost Housing Problems

No abstract provided.

Low Cost High Quality And High Strength Gap-Graded Concrete For Urban Renewal Housing Construction, Shu-Tien Li, V. Ramakrishnan

International Symposia on Low Cost Housing Problems

No abstract provided.

Housing Design Process And Ekistics -- A Systems Approach, Jawalker K. Sridhar Rho

International Symposia on Low Cost Housing Problems

No abstract provided.

Structural Materials And Testings For Low-Cost Housing, Leonard Ru-Liang Wang

International Symposia on Low Cost Housing Problems

No abstract provided.

Electrical Wiring For Lower-Cost Housing, Burns E. Hegler

International Symposia on Low Cost Housing Problems

No abstract provided.

New Methods To Overcome Zoning Restrictions Against Transportable Housing, James Jay Brown

International Symposia on Low Cost Housing Problems

No abstract provided.

Construction Methods For Low Cost Housing In India, Velayudhan Raveendran, Madasamy Arockiasamy

International Symposia on Low Cost Housing Problems

No abstract provided.

Communicating Housing Needs And Strategies, Bruce Yandle, Herbert Busching

International Symposia on Low Cost Housing Problems

No abstract provided.

A Proposed Performance Standard For Lower-Cost Housing In The United States Derived From Life Cycle Analysis Of Present Housing Practice, James H. Davis

International Symposia on Low Cost Housing Problems

No abstract provided.

A Super-Roof Concept For New Towns In Extreme Climates, John V. Huddleston

International Symposia on Low Cost Housing Problems

No abstract provided.

Use Of Pressurized Membranes As A Low-Cost Erection Scheme For Concrete Structures, John W. Leonard

International Symposia on Low Cost Housing Problems

No abstract provided.

An Approach To Improving The Quality Of Low Cost Urban Housing, Donald N. Rothblatt

International Symposia on Low Cost Housing Problems

No abstract provided.

Labor-Requirement And -Cost Comparison Of Construction Methods For Lower-Cost Housing, Schlomo Peer

International Symposia on Low Cost Housing Problems

No abstract provided.

Evaluation Of Timber Caisson Us 25 Bridge Over Ohio River, Jas H. Havens, Assaf Rahal

Kentucky's Annual Forum on Transportation

No abstract provided.

Field Manual Fm 30-10, Military Geographic Intelligence (Terrain), March 1972, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a lengthy, detailed manual concerning geographic intelligence. It contains definitions of geographic intelligence and explains the uses of geographic intelligence and responsibilities for it. It contains numerous photographs and graphics.

The manual contains detailed discussions of terrain, natural conditions, and cultural features as well as specialized features like infrastructure, communications, transportation, and industrial facilities. It contains chapters on:

• Climate and Weather
• Natural Terrain
• Tactical Consideration
• Transportation
• Telecommunications
• Urban Areas
• Rural Areas and Resources
• Recognition of Industrial Facilities, and
• Terrain Studies

Enclosed with the manual is a large sheet containing 12 page-size maps concerning geography-related topics. The sheet is …

Degradation Of Limestone Aggregate During Construction, Robert C. Deen, Herbert F. Southgate

Kentucky Transportation Center Research Report

Twelve construction projects were sampled at the plant, from the spreader box, after spreading, and after compacting. Laboratory tests including gradation analysis, ball-mill wear tests, Atterberg limits, and specific gravity were performed to determine changes in gradations. Kentucky limestones are very hard, high quality aggregates, with no significant degradation characteristics under current construction practices. On a given project, the construction procedure did not cause any significant degradation. Amongst projects, variances can be significant; however, this is attributable to the variation in initial gradations on the different projects.

Gain And Dispersion Focusing In A High Gain Laser, Lee W. Casperson, Amon Yariv

Electrical and Computer Engineering Faculty Publications and Presentations

The transverse modes of a laser resonator containing a medium with a strong radial gain profile differ greatly from the modes of a similar resonator containing a low gain medium. Focusing and defocusing effects result from the gain profile and from the associated dispersion profile. The dispersion focusing causes an asymmetry in the power output as the laser is tuned across the gain line. The theory has been verified using a high gain 3.51-µ xenon laser.

Cyclic Loading Of Full-Size Steel Connections, E. P. Popov, R. M. Stephen

CCFSS Library (1939 - present)

No abstract provided.