Engineering Commons^™

A Survey Of Use Of Left-Turn-On-Red, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objectives of this survey were to determine the extent that a left turn on a red traffic signal (LTOR) has been used across the country and to learn how effective it has been. Responses were received from 43 of the 55 cities surveyed. Of the cities responding, 22 have either had past experience with LTOR or have recently enacted an ordinance which will allow LTOR in the future. Most LTOR laws limit its use to intersections of two one-way streets. A much higher percentage of cities in the western United States have laws permitting LTOR than cities in the …

The Socioeconomic Impact Of The Mountain Parkway And Ky 15, Joseph T. Farmer

Kentucky Transportation Center Research Report

A study of socioeconomic variables in a nine-county region in Eastern Kentucky was undertaken to determine whether significant growth had occurred since the opening of the Mountain Parkway and reconstruction of KY 15. It was hypothesized that these roads have acted as catalysts with available resources to promote a better quality of life.

Study revealed that, while income levels and business sales have enjoyed substantial increases, overall quality of life is still poor. Educational facilities are inadequate; economic diversification in business types is limited; coal is still the main stimulant for income and employment. However, outmigration of persons from the …

Evaluation Of Thermoplastic Pavement-Striping Materials (Louisville And Jefferson County), Jerry G. Pigman, Kenneth R. Agent

Kentucky Transportation Center Research Report

Approximately 1,406,100 linear feet (428,579 m) of hot-sprayed thermoplastic stripe was applied to roadways in Louisville and Jefferson County in the summer of 1973. Visual observations of appearance, durability, and night visibility were conducted according to ASTM D 713-69, the standard method for conducting road service tests on traffic paint. Attempts to conduct photometer measurements of the thermoplastic striping were unsuccessful. Visual observations made during rainy, nighttime conditions were also unsuccessful because very little difference was noticeable among the various sections.

The evaluation showed that the thermoplastic stripes performed considerably better on bituminous concrete pavements than on portland cement concrete …

Resonance Raman Scattering Of Light From A Diatomic Molecule, D. L. Rousseau, P. F. Williams

P. F. (Paul Frazer) Williams Publications

No abstract provided.

Happenings 14 (April 1976 Newsletter), College Of Public Affairs And Community Service, University Of Nebraska At Omaha

CPACS Newsletters

The College of Public Affairs and Community Service (CPACS) newsletter that reported on the news, collaborations, events, and general happenings of the UNO College of Public Affairs and Community Service. This newsletter has had many names and variations over the years including SPACS Newsletter (1973); Newsletter of the College of Public Affairs and Community Service (1973-1974): Happenings (1974-1980s); and the current e-newsletter titled the CPACS Collective (2021-)

Wind-Powered Hydrogen Electric Systems For Farm And Rural Use, Final Report, United States Department Of Energy

Agriculture

The objective of this study has been to determine the current technology of a wind-energy conversion system (WECS) of minimal cost for rural applications. Specifically, IGT has evaluated available methods for converting shaft horse-power from a wind turbine to electricity and hydrogen. A workable mix of these two energy forms with storage that can support the energy needs of selected farming operations and the rural home was sought.

Energy load patterns of several farming operations were examined for interfacing with the energy storage and delivery systems that are supplied by wind turbines dependent on the prevalent winds. Several preliminary designs …

Tentative Load And Resistance Factor Design Criteria For Connections, M. K. Ravindra, Theodore V. Galambos

CCFSS Library (1939 - present)

No abstract provided.

Ua64/3 Readout, Wku Industrial Education & Technology

WKU Administration Documents

Newsletter includes articles:

• Construction Complete on Environemental Science & Technology Building
• Wendt, Donald. Some Reflections on teh Kentucky Industrial Education Association
• Tomazic, Norman. Technology Assessment A Step Toward a Humanized Technology
• Frank Pittman has Individualized Course Published
• Lowrey, H.J. Industrial Arts in a Changing Society
• H.B. Clark
• Growing Interest, re: Architectural Drafting
• Old Building Begins Renovation
• Walter Nalbach: Craftsman at Home

Intermetallic Reactions In Vacuum-Deposited Nickel And Gold Films On (111) Silicon Single Crystals, K. H. Yoon, Gordon Lewis, L. L. Levenson

Materials Science and Engineering Faculty Research & Creative Works

Pure nickel and gold thin films were vacuum-deposited on (111) silicon single crystals. When Ni/Au/Si or Au/Ni/Si samples were heated to about 550° in situ, hexagonal or deformed hexagonal shaped crystallites were formed on the silicon substrates. The composition of these crystallites was determined by using x-ray diffraction, scanning electron microscopy and scanning Auger microprobe methods. The crystallites were identified as NiSi2. The crystal-lites on the (111) silicon plane parallel to the surface appeared as regular hexagons while the inclined crystal-lites resembled trapezia. The results of Auger spectra and in-depth composition profiles for Ni, Au, and Si showed that the …

Accidents On Rural, Two-Lane Roads And Their Relation To Pavement Friction [Apr. 1976], Rolands L. Rizenbergs, James L. Burchett, Larry A. Warren

Kentucky Transportation Center Research Report

Friction measurements were made with a skid trailer at 40 mph (18 m/s) on 1460 miles (2350 km) of rural, two-lane roads (US routes) in Kentucky. Maintenance sections or subsections were treated as test sections. Accident experience, friction measurements, traffic volumes, and other available data were obtained for each. Various expressions of wet-pavement accidents and pavement friction were related and analyzed. Averaging methods were used in developing trends and minimizing scatter. A moving average for progressively-ordered sets of ten test sections and test sections grouped by Skid Numbers and Peak Slip Numbers yielded more definite results. The expression of accident …

The D-Cracking Phenomenon: A Case Study For Pavement Rehabilitation, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.

Characteristics Of Traffic Streams On Rural, Multilane Highways, Jerry G. Pigman, Jesse G. Mayes

Kentucky Transportation Center Research Report

The purpose of this study was to develop a data base and interrelationships for traffic characteristics on rural, multilane highways. Primary emphasis was placed on factors influencing lane distribution. Other characteristics investigated were vehicle speeds, vehicle classifications, volumes, time distributions of flow, and noise emitted by vehicle type and weight. Most analyses were based on traffic characteristics data collected in the summer of 1973. Analyses of 1968 and 1975 traffic characteristics data were compared with 1973 data for the purpose of investigating unusual trends over the various time periods. The 1968 and 1973 surveys produced similar results; however, some changes …

Guardrail Performance: An Analysis Of Accident Records, Kenneth R. Agent

Kentucky Transportation Center Research Report

Accident records involving guardrails were analyzed and summarized.

Guardrail-related accidents comprised a significant percentage of interstate and parkway accidents, particularly those resulting in fatalities. Guardrail involvement in accidents was much less on primary and secondary highways than on interstates and parkways.

The severity of guardrail-related accidents was higher than the average severity of all accidents. The severity of guardrail-related accidents was higher on the primary and secondary system than on the interstate and parkway system.

Guardrails have not been very successful in redirecting vehicles parallel to traffic. The largest number of severe injuries involved vehicles vaulting over the guardrail Increased …

Duration And Intermittancy Of Noise Exposure For The Operator Of A Self Propelled Baler, Lyle Koester, Kenneth Von Bargen

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

Evaluation of the noise exposure of agricultural machine operators requires that machine operation time and intermittancy of work patterns be determined. One method of obtaining such data is by using event activity recorders. These data are available for haying machines operated at the University of Nebraska Field Laboratory, Mead during the 1963 through 1966 seasons. Approximately 60 machine operator days per season were recorded on service recorder charts for the following machines:
1. self-propelled windrowers
2. self-propelled and pull-type balers
3. self-propelled and pull-type bale wagons
In addition some motion-time study data are available for the newer loose hay stackers …

A Soils Data System For Kentucky, Dwight Spradling

Kentucky Transportation Center Research Report

This report discusses the development of a computerized soils data system which facilitates collection, centralized storage, and retrieval of soils data developed by engineers and scientists for projects in Kentucky. Without such a system, much soils data are essentially lost after each project is completed. This system will provide data that can conveniently be used for developing preliminary sources of information for site investigation, for preparing regional soil maps, for land use planning, and for studying new and existing empirical relationships involving soil properties and characteristics.

Various types of data systems, the design of the system to include software and …

Some Comments On The Plasmon Spectrum Of Tetrathiafulvalene Tetracyano-P-Quinodimethane (Ttf- Tcnq), P. F. Williams, A. N. Bloch

P. F. (Paul Frazer) Williams Publications

Our random-phase-approximation model calculation of the high-frequency dielectric response of a quasi-one-dimensional metal is generalized to the case of n conducting strands per unit cell. For a model of the two-band system tetrathiafulvalene tetracyano-p-quinodimethane we obtain good agreement with recent experiments, and also predict an acoustic-plasmon branch, Some implications for the physics of the material are discussed.

On Energy Strategies And Pecuniary Calculation, Herman E. Daly

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

No abstract provided.

3rd Annual Umr-Mec Conference On Energy -- Entire Proceedings, University Of Missouri--Rolla

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

No abstract provided.

Feasibility Of Integrated Ocean Thermal Gradient-Nuclear Plants For The Production Of Electrical Power, Frank Ferrer, Donald Sasscer

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

A study was made of the feasibility of integrating an ocean thermal energy conversion (OTEC) electrical power plant with a nuclear power plant. The integration was such that the waste heat of the nuclear plant was used to augment the thermal efficiency of the OTEC plant. The study was performed for three shore line sites of Puerto Rico where deep cold water is found between 2 and 10 miles from shore.

Resource Recovery From Solid Waste: The Story Of Union Electric's Solid Waste Utilization System, David L. Klumb, Paul R. Brendel

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

This paper covers the design and development of a comprehensive resource recovery system capable of serving the solid waste disposal needs of the Greater St. Louis area comprising 11,500km² (4500 sq. mi.). This 7.2 x 10⁶ kg (8000 ton) per day operation will convert solid waste into milled fuel for cofiring with pulverized coal in utility boilers, and will recover magnetic and non-magnetic metals, all in an environmentally acceptable manner. Scheduled for operation in 1979, the system will be built and operated as a private enterprise venture of Union Colliery Company, a subsidiary of Union Electric Company.

Sample Design For Electricity Pricing Experiments: Anticipated Precision For A Time-Of-Day Pricing Experiment, Dennis J. Aigner

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

The primary goal of a pricing experiment is basically the same as that for an experiment in direct load control: To discover the effects of time-of-day pricing on the shape of the daily load curve for a particular customer or class of customers. For the pricing experiment, it is also of interest to know how those effects are related to the pricing structure itself.

In this paper, we consider two alternative models of kwh consumption for residential customers as the basis for calculating an optimal experimental design, and compare them in terms of the levels of precision of estimation (for …

Test 1218: Case 1570 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Structural Stability Research Council: Proceedings 1976, Structural Stability Research Council

CCFSS Library (1939 - present)

One of the purposes of the Council is to maintain a forum where problems related to the design and behavior of columns and other compression elements in metal structures can be presented for evaluation and discussion. The Annual Technical Session provides an opportunity to carry out this function. The 1976 Annual Technical Session was held on March 2 and 3 at the SheratonBiltmore Hotel in Atlanta, Georgia. Fifty-five persons attended the session and nineteen papers were delivered. A panel discussion on "New Ideas on Stability of Multistory Buildings" was held in the evening of March 2, 1976. the panelists were …

Report On Screw Fastened Sheet Steel Connections For Canadian Steel Industries Construction Council, Volume I, R. W. Eastman

CCFSS Library (1939 - present)

Ultimate load data is presented from more than 1600 tests on sample connections made with different thicknesses of zinc-coated sheet steel and a variety of commonly used thread forming and self-drilling fasteners. The three fundamental loading conditions examined were pull-over, pull-out and single lap shear.

Empirical relationships have been developed which allow interpolation of the data within the range of sheet steel thicknesses tested.

Type AB and type A thread forming fasteners, and a number of different self-drilling fasteners were tested, in sizes from #14 (.250 in.) to #8 (.164 in.) diameter. Flat metal washers and a variety of sealing …

Steel Roof Deck Design Manual, Steel Deck Institute

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

No abstract provided.

Evaluation Of The Results Of Gravity And Load Tests Of C And Z Purlin Roof Systems, Teoman Peköz

CCFSS Library (1939 - present)

No abstract provided.

Energy - Minerals - Environment: How Now Brown Cow?, Bobby G. Wixson

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

Energy, technical, social, political, economic, and environmental problems are all people related problems which will continue to increase along with the world's population. With the growing demands for more energy and minerals along with the constraints of protecting the environment, new approaches must be considered to these complex problems.

Energy sources, modifications, alternatives, and new developments must be considered for the present as short term resources (next 25- 30 years) and in the future as long range research necessary to develop and implement new technology (25 years on). Major energy sources and their environmental considerations are generally classified as:

I. …

Test 1226: Ford 3600 And 3610 Gasoline 8-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1224: Ford 6600 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1221: Ford 3600 Diesel 8-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …