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Articles 185161 - 185190 of 193900

Full-Text Articles in Engineering

Wrong-Way Movements On Divided Highways : Technical Paper, Peter N. Scifres, Roy C. Loutzenheiser Jan 1975

Wrong-Way Movements On Divided Highways : Technical Paper, Peter N. Scifres, Roy C. Loutzenheiser

JTRP Technical Reports

No abstract provided.


An Evaluation Of Several Mulch Materials On Landscape Plant Growth, Weed Control, Soil Temperature And Soil Moisture : Interim Report, Philip L. Carpenter Jan 1975

An Evaluation Of Several Mulch Materials On Landscape Plant Growth, Weed Control, Soil Temperature And Soil Moisture : Interim Report, Philip L. Carpenter

JTRP Technical Reports

No abstract provided.


Limiting Strain As A Failure Criterion For Bituminous Mixtures, Raymond Doran Pavlovich Jan 1975

Limiting Strain As A Failure Criterion For Bituminous Mixtures, Raymond Doran Pavlovich

JTRP Technical Reports

No abstract provided.


Traffic Speed Report No. 93 : Interim Report, Ahmed Atef Gadallah, George K. Stafford, C. B. Reiling Jan 1975

Traffic Speed Report No. 93 : Interim Report, Ahmed Atef Gadallah, George K. Stafford, C. B. Reiling

JTRP Technical Reports

No abstract provided.


Methods Of Soil Stabilization For Erosion Control, Sidney Diamond Jan 1975

Methods Of Soil Stabilization For Erosion Control, Sidney Diamond

JTRP Technical Reports

No abstract provided.


Evaluation Of Continuously Reinforced Concrete Pavements In Indiana, Asif Faiz Jan 1975

Evaluation Of Continuously Reinforced Concrete Pavements In Indiana, Asif Faiz

JTRP Technical Reports

No abstract provided.


Improving Embankment Design And Performance: Prediction Of As-Compacted Field Strength By Laboratory Simulation : Interim Report, John L. Peterson Jan 1975

Improving Embankment Design And Performance: Prediction Of As-Compacted Field Strength By Laboratory Simulation : Interim Report, John L. Peterson

JTRP Technical Reports

No abstract provided.


Governmental Reorganization And Metropolitics: Determinants Central To A Normative Theory Of Metropolitan Planning, Woodrow L. Moore Jan 1975

Governmental Reorganization And Metropolitics: Determinants Central To A Normative Theory Of Metropolitan Planning, Woodrow L. Moore

JTRP Technical Reports

No abstract provided.


Traffic Speed Report No. 94 : Progress Report, Ahmed Atef Gadallah, George K. Stafford Jan 1975

Traffic Speed Report No. 94 : Progress Report, Ahmed Atef Gadallah, George K. Stafford

JTRP Technical Reports

No abstract provided.


Comparative Travel Patterns From Four Work Trip Data Sources, Wing-Kwong Law Jan 1975

Comparative Travel Patterns From Four Work Trip Data Sources, Wing-Kwong Law

JTRP Technical Reports

No abstract provided.


History Of The Interstate System In Indiana: Volume 1 - Chapters I-Iv: Development Of The National Program, David Alan Ripple Jan 1975

History Of The Interstate System In Indiana: Volume 1 - Chapters I-Iv: Development Of The National Program, David Alan Ripple

JTRP Technical Reports

No abstract provided.


History Of The Interstate System In Indiana: Volume 4 - Chapters Vii And Viii: Cost, Funding And General Benefits, David Alan Ripple Jan 1975

History Of The Interstate System In Indiana: Volume 4 - Chapters Vii And Viii: Cost, Funding And General Benefits, David Alan Ripple

JTRP Technical Reports

No abstract provided.


Continuous Purlin Tests, Teoman Peköz Jan 1975

Continuous Purlin Tests, Teoman Peköz

CCFSS Library (1939 - present)

INTRODUCTION The results of the first phase of an experimental investigation are presented in this report. The objective of this investigation is to study the applicability of a theoretical approach developed at Cornell and implemented in a computer program developed by T. Pekoz for Diaphragm Braced Channel and Z-Section Purlins. In this phase of the experimental program three "full-scale" assemblies were tested under simulated wind-uplift loading. In addition, several supplementary tests were carried out to determine various physical parameters utilized in the analytical solution. The reported results are restricted to those tests that have direct bearing on correlating the test …


Column Research Council: Proceedings 1975, Column Research Council Jan 1975

Column Research Council: Proceedings 1975, Column Research Council

CCFSS Library (1939 - present)

One of the objectives of the Column Research Council is to hold an annual technical session with the view of presenting for evaluation problems relating to the design and behavior of columns and other compression elements in metal structures. The 1975 Proceedings contain summaries of papers presented at the technical session held on March 6-7, 1975 in Toronto Canada. A register of those who actively participate in the work of the Council, a financial statement, related publications and the Council By-Laws are also recorded.


Quantitative Overdesign Of Chemical Processes, R. A. Freeman, J. L. Gaddy Jan 1975

Quantitative Overdesign Of Chemical Processes, R. A. Freeman, J. L. Gaddy

Chemical and Biochemical Engineering Faculty Research & Creative Works

Overdesign is applied to chemical processes to account for expected variations in the design data or design conditions. These variables must be treated quantitatively in order to design a process that is certain to perform adequately. Process dependability is introduced as a means of quantifying variable process behavior. Overdesign using the dependability criterion is a stochastic optimization problem. An example problem with three stochastic variables and two design variables is presented to illustrate these procedures. Copyright © 1975 American Institute of Chemical Engineers


Drag Reduction In Solid‐Fluid Systems, I. Radin, J. L. Zakin, Gary Kent Patterson Jan 1975

Drag Reduction In Solid‐Fluid Systems, I. Radin, J. L. Zakin, Gary Kent Patterson

Chemical and Biochemical Engineering Faculty Research & Creative Works

Pressure drop measurements were made on a variety of dilute solid‐liquid suspension systems in order to study the effects of particle shape and size, concentration, fluid viscosity, and tube diameter on friction factor. The central objective was to determine under what conditions drag reduction would occur. Copyright © 1975 American Institute of Chemical Engineers


Simulation Of Nonisothermal Absorber-Reactors For Multicomponent Systems, Robert E. Schwab Jan 1975

Simulation Of Nonisothermal Absorber-Reactors For Multicomponent Systems, Robert E. Schwab

Doctoral Dissertations

"There are various models available for calculations involving one transferring component with chemical reaction for isothermal conditions using linear equilibrium data. However, the differential equations for multicomponent mass and energy transfer with chemical reaction have not been developed or implemented. This work demonstrates the development of a reliable model describing multicomponent mass and energy transfer in a continuous two-phase absorber-reactor for Non isothermal conditions and demonstrates the feasibility of solving the differential equations numerically. The numerical solution, using nonlinear equilibrium data, is used to obtain the absorber-reactor column specifications"-- Abstract, p. 2


Split-Film Anemometry In A Drag-Reducing Solution, Jack Chosnek Jan 1975

Split-Film Anemometry In A Drag-Reducing Solution, Jack Chosnek

Doctoral Dissertations

"Turbulence measurements were made in the tube flow of mineral oil and a 0.2% solution of polyisobutylene in the same oil. Velocity profiles, axial and radial turbulence intensities, and axial and radial energy spectra were obtained in both fluids using a split-film anemometer probe. In addition, velocity profiles and axial turbulence intensities were obtained in oil using a 0.001-in. cylinder probe, a cone probe and a parabolic-wedge probe. The measurements were made in a one-inch tube at a constant fluid temperature of 30.0°C, in the Reynolds-number range of 4,800 to 50,000.

Four factors influenced the results in a greater manner …


Characterization Of Heat-Treated Nickel And Gold Films On Silicon Single Crystals, Ki Hyun Yoon Jan 1975

Characterization Of Heat-Treated Nickel And Gold Films On Silicon Single Crystals, Ki Hyun Yoon

Doctoral Dissertations

"An experimental electron impact ionization source was used to determine the presence of various neutral atoms and molecules on metallized and bare surfaces of silicon wafers. The metallization consisted of thin films of nicke l and gold separately and in combination. The major surface contaminates on all samples were found to be F, Na, Cl, K, CO, and CO2. The surface concentration of these species was found to be sensitive to the sample temperature up to 550 °C, the maximum temperature used in this study.

In the course of the mass spectrometric study, it was found that crystallites …


Effect Of Photoneutrons On Transients Of Beryllium Reflected Reactors, Safdar Ahmad Ali Jan 1975

Effect Of Photoneutrons On Transients Of Beryllium Reflected Reactors, Safdar Ahmad Ali

Doctoral Dissertations

"An analytical model is developed to account for the photoneutron sources present in a beryllium reflector. The time-dependent, two- dimensional and three energy-group diffusion equations are written with an additional photoneutron source term. Then an approximate flux composed of two spatial shapes chosen beforehand, each having an unknown time coefficient, is inserted into time-dependent multigroup equations and the weighted residual criterion is applied. This yielded multimode kinetics equations with generalized definitions for conventional matrix parameters: generation time, reactivity, delayed neutron and delayed photoneutron fraction matrices.

Two transients are analyzed for the University of Missouri Research Reactor: simulation of rod drop …


Optimizing Underground, Trackless Loading And Hauling Systems, Richard Lee Bullock Jan 1975

Optimizing Underground, Trackless Loading And Hauling Systems, Richard Lee Bullock

Doctoral Dissertations

"Determining the optimum system and equipment to be utilized in today's underground trackless haulage mine is a complex problem which was dealt with in this research by systems simulation. The computer program developed by the Caterpillar Tractor Company served as the starting point for simulating the equipment's capabilities to move material over a course in a prescribed time. Extensive time studies of the unsimulated events lead to structuring this program in the deterministic mode since it was felt to be more acceptable to the operating management which would eventually use the technique. Every phase of the simulation was successfully validated …


Bit Penetration Into Rock - A Finite Element Study, Jaw-Kuang Wang Jan 1975

Bit Penetration Into Rock - A Finite Element Study, Jaw-Kuang Wang

Doctoral Dissertations

"A finite element approach has been developed to simulate bit penetration from bit-rock interaction to chip formation. A mathematical rock failure model, based on a review of the existing literature on rock tests, has been proposed to represent post-failure rock behavior and applied in the penetration simulations. The finite element program has been developed for two dimensional plane strain problems with non-linear material properties, geometrical nonlinearities and fracture. An anisotropic element as well as variable stiffness and stress release methods have been used. An iteration method, using an incremental approach, has been applied for continuous penetration and modifications of material …


Design And Analysis Of An Instrument System For Rheological Testing Of Whole Blood Samples, Robert Rimvydas Sinusas Dec 1974

Design And Analysis Of An Instrument System For Rheological Testing Of Whole Blood Samples, Robert Rimvydas Sinusas

Dissertations

The dissertation covers the conceptual design of a rheometer for testing whole blood samples through to the clotting state. While the design aims at increased measurement accuracy, the design employs well known technologies and available components.

The main reason for preoccupation with blood testing is that recent investigations have indicated that physiological disorders can be correlated with rheological properties of blood. The pursuit of an improved means of correlation is initiated with a survey of the rheological properties of blood. The relevance of these blood properties is then discussed. From this discussion a broader blood model is developed as a …


Frontal Instruction Or Group Work, Hans Wagner Dec 1974

Frontal Instruction Or Group Work, Hans Wagner

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


Books To Make Electronics Easy, P Mynott Dec 1974

Books To Make Electronics Easy, P Mynott

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


The Development Of The Faculty Of Engineering, Udsm, W Kreuser Dec 1974

The Development Of The Faculty Of Engineering, Udsm, W Kreuser

Tanzania Journal of Engineering and Technology (TJET)

Although gome of the buildings have not yet been completed, the Faculty has already moved into the new premises. The training workshops where all students spend nearly 5$ of their time during the first year of the undergraduate course are in full owing 'Ince 1973, the first laboratorleg will be ready for operation early 1975. The admi'ßion of students to the four years undergraduate eourøe and the distribution to the departments are represented on the table below.


Dissemination Of Appropriate Technologies, H Dickinson Dec 1974

Dissemination Of Appropriate Technologies, H Dickinson

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


Committee For Relations With Industry - Its Role In The Training Of Engineers, A Shayo Dec 1974

Committee For Relations With Industry - Its Role In The Training Of Engineers, A Shayo

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


Construction Of Pile Foundation For Hall Seven, Udsm, K Swai Dec 1974

Construction Of Pile Foundation For Hall Seven, Udsm, K Swai

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


Plough Parts Production At Ubungo Farm Implements, F Kavishe Dec 1974

Plough Parts Production At Ubungo Farm Implements, F Kavishe

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