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The Prediction Of The Freeze/Thaw Durability Of Coarse Aggregates In Concrete By Mercury Intrusion Porosimetry : Interim Report, Meredith Nickels Lindgren

JTRP Technical Reports

No abstract provided.

Thin, Applied Surfacing For Improving Skid Resistance Of Concrete Pavements, Charles F. Scholer

JTRP Technical Reports

No abstract provided.

The Fabric Of A Medium Plastic Clay Compacted In The Laboratory And In The Field : Interim Report, Dean Matthews White

JTRP Technical Reports

No abstract provided.

The Effects Of Added Softening Agents Upon The Behavior Of Cold Recycled Asphalt Mixtures : Interim Report, Akio Iida

JTRP Technical Reports

No abstract provided.

An Investigation Of Recycling Bituminous Pavements, Volume 1 : Interim Report, James L. Mckinney

JTRP Technical Reports

No abstract provided.

Missouri National Recreational River Nebraska And South Dakota General Design

United States Army Corps of Engineers, Omaha District

The purpose of this document is to serve as a general design memorandum (GDM) that provides the basic data and delineates the general procedure for implementation of the authorized project. This document provides an extension of the conceptual management program identified in the Management Plan and provides an update of the project cost estimate from 1978 to 1980 price levels.

General scopes of work, based on information available from ongoing studies is presented for recreation, cultural, visual, and fish and wildlife resources and for the bank preservation program.

The other resources outlined in the Management Plan, though not considered essential …

Flora And Fauna A Biliography With Abstracts Or Partial Summaries

United States Army Corps of Engineers, Omaha District

The Missouri River from Gavins Point Dam to Ponca State Park, Nebraska was designated, on 10 November 1978, a National Recreational River. The purpose of the designation is to preserve and protect the river reach and to make its resources available for public use.

The Secretary of the Interior has been mandated to administer the river. Acting through the Assistant Secretary for Fish, Wildlife, and Parks, the Secretary of the Interior has entered into a written cooperative agreement with the Secretary of the Army (acting through the Chief of Engineers) to provide for construction and maintenance of erosion control work …

Electronic Properties Of Metal Chloride Intercalants Of Graphite*, **, John A. Woollam, M. B. Dowell, A. Yavrouian, A. G. Lozier, G. Matulka

Department of Electrical and Computer Engineering: Faculty Publications

The Shubnikov-deHaas (SdH) effect has been used to study the electronic properties of graphite intercalated with PdC1₂ (stage 3), FeC1₃ (stages 2, 4, 6, and 11), CuC1₂ (stage 1), and WC1₆ (stage 5). For the palladium chloride, ferric chloride, and copper chloride intercalants the SdH spectra are similar: these show frequencies of approximately, 27, 80, 380, and 550 Tesla for fields parallel to the c-axis. The effective masses have been measured for each of these carriers, and are of the order of 0.1 m₀, where m₀ is the free electron mass. These carriers …

Evaluation Of The Fhwa Highway Traffic Noise Prediction Procedure (Snap 1) [Jan. 1980], Kenneth R. Agent

Kentucky Transportation Center Research Report

Traffic noise prediction procedures are used in the design of new highways to determine if noise is limited to specific levels. A previous study evaluated the procedure outlined in NCHRP Report 117 and developed a correction factor which was incorporated into Kentucky's noise prediction procedure. This adjusted NCHRP 117 procedure has been used in Kentucky for the past several years. The Federal Highway Administration has developed a new procedure to predict traffic noise levels. The objective of this study was to evaluate the new prediction procedure, designated as SNAP 1.

Comparisons of measured and predicted noise levels showed that predictions …

Occurrences Of Expansive Limestone In Kentucky, Ralph G. Coy, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.

Rutting Models For Asphaltic Concrete And Dense-Graded Aggregate From Repeated-Load Tests, David L. Allen, Robert C. Deen

Kentucky Transportation Center Research Report

The development of models to predict rutting in the asphaltic concrete and dense-graded aggregate layers of flexible pavements is reported. The models were developed from data obtained from repeated-load triaxial tests. Details of equipment and methodology are reported.

An asphaltic concrete base mixture was tested at temperatures of 45 F, 77 F, and 100 F. Longitudinal stress levels of 20 psi, 50 psi, and 80 psi were used. The tests were performed unconfined. Most of the specimens were tested to 10,000 cycles of loading. Three sequences of loading were used.

It is noted that temperature and stress level are extremely …

Irish H & V News

Building Services Engineering

No abstract provided.

Structural Stability Research Council: Proceedings 1980, Structural Stability Research Council

CCFSS Library (1939 - present)

One of the purposes of the Council is to maintain a forum where structural stability aspects of the behavior of frames, columns and other compression-type elements in metal and compression structures can be presented for evaluation and discussion. The Annual Technical Session provides an opportunity to carry out this function. Summaries of the technical papers, the panel discussion and minutes of the business meeting are recorded in the following pages. The attendance list is also included.

Phase 1 Inspection Report: National Dam Safety Program. Mississippi - Kaskaskia - St. Louis Basin. Cadet Mine Tailings Dam, Washington County, Missouri, International Engineering Company, Inc. Consulting Engineers, San Francisco, California

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of the Cadet Mine Tailings Dam. It was prepared under the National Program of Inspection of Non-Federal Dams.

Phase 1 Inspection Report: National Dam Safety Program. Mississippi - Kaskaskia - St. Louis Basin. Ditch Creek Dam, Washington County, Missouri, Woodward-Clyde Consultants, Chicago, Illinois

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of Ditch Creek Dam. It was prepared under the National Program of Inspection of Non-Federal Dams.

The inspection results indicate problems with the spillway adequacy. Although the dam is capable of passing the PMF without overtopping, the lack of a proper spillway and discharge channel and the need to pass runoff over a public transportation route (State Highway H) indicates a deficiency at this facility.

Phase 1 Inspection Report: National Dam Safety Program. Mississippi - Kaskaskia - St. Louis Basin. Little Indian Creek Dam, Washington County, Missouri, Woodward-Clyde Consultants, Chicago, Illinois

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of the Little Indian Creek Dam (MO 30718).

It was prepared under the National Program of Inspection of Non-Federal Dams.

This dam has been classified as unsafe, non-emergency by the St. Louis District as a result of the application of the following criteria:

a. This dam retains less than 50 percent of the Probable Maximum Flood without overtopping the embankment.

b. Overtopping of the embankment could result in failure of the dam.

c. Dam failure significantly increases the hazard to loss of life downstream.

Phase 1 Inspection Report: National Dam Safety Program. Mississippi - Kaskaskia - St. Louis Basin. Carden Lake Dam, Crawford County, Missouri, Anderson Engineering, Inc., Springfield, Missouri, Hanson Engineers, Inc., Springfield, Illinois

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of the Carden Lake Dam. It was prepared under the National Program of Inspection of Non-Federal Dams.

Phase 1 Inspection Report: National Dam Safety Program. Mississippi - Kaskaskia - St. Louis Basin. Lac Benet Dam, St. Francois County, Missouri, Hoskins-Western-Sonderegger, Inc. Consulting Engineers, Lincoln, Nebraska

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of the Lac Benet Dam (MO 30281).

It was prepared under the National Program of Inspection of Non-Federal Dams.

This dam has been classified as unsafe, non-emergency by the St. Louis District as a result of the application of the following criteria:

a. Spillway will not pass 50 percent of the Probable Maximum Flood without overtopping the dam.

b. Overtopping of the dam could result in failure of the dam.

c. Dam failure significantly increases the hazard to loss of life downstream.

Abutment-Thermal Interaction Of A Composite Bridge, David B. Lewis

CCFSS Library (1939 - present)

A two-span test structure, with tie-rods to similate approach-slab forces, was subjected to thermal loading. The resultant strains and deflections are correlated with those obtained from a prior theoretical study. It was concluded ~hat the theoretical procedure provides a rational method for predicting the thermal behavior of composite-girder bridge structures.

The Effect Of Availability Improvement Of A Nuclear Power Plant On The Cost Of Generating Electricity, Seyyed Mohammad Reza Nejat

Doctoral Dissertations

"The objective of this investigation is to study the economic benefits in operating a nuclear power plant as a result of improving the availability of the secondary (steam) loop of the plant. A new method has been developed to obtain availability, frequency of failure, probability and frequency of operation, cycle time, and uptime for different capacity states of a parallel-series system having components with failure and repair rates distributed exponentially. The method has been applied to different subsystems, systems, and the secondary loop as a whole. The effect of having spare parts for several components, as measured by savings in …

An Alternate High Pressure Injection System For Pressurized-Water Reactors, Gary Edward Mueller

Doctoral Dissertations

"To evaluate the In-Core Injection System (ICIS) performance during a loss-of-coolant accident (LOCA) due to a major rupture in the primary system of a pressurized water reactor (PWR), tests were conducted using the thermal-hydraulic computer code RELAP4/MOD5.

The results for the overall plant system show that the maximum core average fuel cladding temperature reached during an intermediate size cold-leg break in a Combustion Engineering PWR with ICIS is equal to the initial operating temperature of 335°c (636°F). The maximum core average fuel cladding temperature reached during a large size cold-leg break with ICIS is 478°c (893°F). This temperature is approximately …

A Development Of Regression Models For Predicting Two-Phase Relative Permeability In Consolidated Rock, Mehdi Honarpour

Doctoral Dissertations

"The primary objective of this study was the development of prediction equations for the water-oil imbibition relative permeability and gas-oil drainage relative permeability from experimental data.

Laboratory relative permeability data along with the corresponding rock and fluid properties were collected, and stepwise linear regression analysis was applied. Relative permeability models were developed in terms of rock and fluid properties.

The prediction models were tested against laboratory values and previously published correlations. It was found that the models developed in this study yield results that are generally in better agreement with experimental values than the previously published correlations"--Abstract p. ii

Aerodynamic Study Of Dual Lifting Surfaces, Kamran Rokhsaz

Masters Theses

"Aerodynamic characteristics of two-dimensional dual airfoil systems have been investigated in an incompressible flow field in the area where improved aerodynamic characteristics are realized, due to the flow field coupling of the two airfoils. A simple analytic model has been developed to demonstrate some of the basic coupling effects in such systems. Laplace's differential equation for the stream-function has been solved numerically to determine the potential flow about dual airfoil geometries of different gap, stagger, and decalage. Two numerical methods have been employed; a finite-difference approach in Cartesian coordinates, for which the mixed boundary conditions have been transformed to the …

Computer Aided Optimal Design Of Helical Gears, S. N. Muthukrishnan

Dissertations and Theses

A random search method for optimum design of a pair of helical gears has been developed. The sequence of optimization consists of two principal components. The first is the selection phase, where the output is the starting solution for the design variables - module, facewidth, helix angle and number of teeth on the pinion. The input for the selection phase includes the application environment, approximate center distance, minimum helix angle, desired values of gear ratio, pinion speed and the power to be transmitted. The limits on each of the design variables and the constraints are imposed interactively during the first …

Luminescence In Slipped And Dislocation-Free Laser-Annealed Silicon, R.H. Uebbing, P. Wagner, H. Baumgart, H. J. Queisser

Electrical & Computer Engineering Faculty Publications

Photoluminescence of cw laser-annealed silicon shows a dramatic difference in electronic behavior of the reconstructed material depending upon either creation or suppression of dislocations. Beyond a critical exposure time slip appears, and the luminescence of these samples is dominated by dislocation-related defect levels.

Development And Verification Of A Laboratory Model For Use In The Study Of A Continuous Flow Pressurized Activated Sludge Process, Wayne Frederick Nolte

Dissertations

Investigations concerning the responses of domestic wastewater treated at elevated pressures have demonstrated an acceleration in the rate of biological assimilation of the waste material. The literature is not extensive, but presents much conflicting data. There has been a lack of a coherent approach to the investigation of pressure in wastewater treatment. This demonstrates the need for standard testing apparatus and procedures.

A bench scale pressurized activated sludge process was designed and constructed. The apparatus was tested over a broad range of conditions and was found to give reproducible results. Kinetic responses of the pressurized process are presented.

Some Aspects Of Dimensioning And Tolerancing Of Mechanical Engineering Drawings, B. Krayer

Tanzania Journal of Engineering and Technology (TJET)

Abstract

Materials Testing And Consultancy For The Tanzanian Industry, H. Fallenbach

Tanzania Journal of Engineering and Technology (TJET)

Abstract

The Psychic Responsibility Of Engineering, M Megji

Tanzania Journal of Engineering and Technology (TJET)

During the assessment of the manuscript, it was observed that the paper does not include an abstract. The document proceeds directry to the main content without providing a separate abstract that summarize the study's objectives, methodology, key findings and conclusions

Sisal Fibre Concrete And Its Prospective Applications, A Mawenya

Tanzania Journal of Engineering and Technology (TJET)

During the assessment of the manuscript, it was observed that the paper does not include an abstract. The document proceeds directry to the main content without providing a separate abstract that summarize the study's objectives, methodology, key findings and conclusions