Digital Commons Network^™

Investigations Into Automatic Interpretations Of Terrain Features : Technical Paper, Harold Teddy Rib, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.

The Effect Of Concrete Strength On The Shear Strength Of Reinforced Concrete Beams With Bar Cutoff, J. Greg Borchelt

JTRP Technical Reports

No abstract provided.

Pore Studies Of Carbonate Aggregates By An Evaporation Technique : Informational Report, Harold Reid Brown

JTRP Technical Reports

No abstract provided.

Evaluation Of The Performance Of Ultrasonic Equipment For Pavement Thickness Measurements : Progress Report, Charles F. Scholer, Raymond Doran Pavlovich

JTRP Technical Reports

No abstract provided.

The Response Of Bituminous Mixtures To Dynamic And Static Loads Using Transfer Functions, S. A. Swami

JTRP Technical Reports

No abstract provided.

Analysis And Synthesis Of Highway Pavement Design, Thomas R. Buick

JTRP Technical Reports

No abstract provided.

An Evaluation Of The Aesthetics Of Junkyard Screening And Billboards Densities : Technical Paper, C. I. Macgillivray, Harold L. Michael

JTRP Technical Reports

No abstract provided.

Feasibility Of Cold Weather Earthwork : Technical Paper, C. W. Lovell, Alfred M. Osborne

JTRP Technical Reports

No abstract provided.

Fortran Iv Programs To Develop Contour Maps Of 3-Dimensional Data : Progress Report, A. Keith Turner

JTRP Technical Reports

No abstract provided.

Multisensor Analysis For Soils Mapping : Technical Paper, Harold Teddy Rib, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.

The Impact After Seven Years Of A Highway Improvement In A Small City : Progress Report, Edward R. Fleischman

JTRP Technical Reports

No abstract provided.

Small Scale Reinforced Concrete Models, Robert C. Vansiclen

JTRP Technical Reports

No abstract provided.

An Informational Manual On The Urban Transportation Planning Process For Technical Committees In Smaller Urban Areas : Progress Report, Ronald Jerome Hensen, William Louise Grecco

JTRP Technical Reports

No abstract provided.

The Influence Of Lightweight Fines Substituted For Conventional Fines On Freeze-Thaw Durability Of Portland Cement Concrete, David Lee Gress

JTRP Technical Reports

No abstract provided.

Research On Roadside Development And Maintenance : Part 1 - Bluegrass Research : Progress Report, William Hugh Daniel, Terrance P. Riordan

JTRP Technical Reports

No abstract provided.

Behavior Of Reinforced Concrete Deep Slabs Subjected To A Uniform Load., Golden E. Lane Jr.

Civil Engineering ETDs

Within the last ten years a considerable amount of research has been conducted to determine the behavior of reinforced concrete deep

structures. The major portion of this recent research has been devoted to deep beams. The results have shown a marked difference in the behavior of deep beams as compared to beams of “normal” proportions. In

this context the word "deep" implies a small span-to-depth ratio. There is not a clear-cut distinction between a "normal-depth" and a deep struc­ture; however, span-to-depth ratios less than ten would suggest deep structures. The difference in behavior between deep beams and normal depth beams …

1968 Handbook Of Facts And Figures On Indiana County Roads—Including Directory Of County Highway Departments, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This handbook will assist county road officials in the planning of county road operations. The data and information included in this handbook are either statistical or public information which are already available from the official sources, but which needed to be brought together for convenient distribution and use.

Urban Geology—A Need And A Challenge, William J. Wayne

Department of Earth and Atmospheric Sciences: Faculty Publications

Urban land uses are rapidly converting open land into intensively used land. Generally, in planning those uses, a comprehensive study has included everything except an evaluation of the land in three dimensions. Geologists are eminently well equipped to supply the missing data, but they must also be aware of the needs of the urban community and the kinds of information needed by planners if they are to write reports usable by planners. Urban and environmental geology is a newly expanding field in the use of geologic data to help solve some urban problems in the planning stage. It is likely …

The Pore Size Distribution Of Portland Cement Paste, Douglas Windslow

JTRP Technical Reports

No abstract provided.

W.A. Dairying : Progress In 42 Years, Maurice C. Cullity

Journal of the Department of Agriculture, Western Australia, Series 4

From hardship and elementary standards, West Australian dairying has developed into a consolidated industry with larger herds, increased output and high quality production.

The changes he has seen are reviewed by Mr. M. Cullity who retired last month from the position of Chief of the Division of Dairying, after 42 years of service to the industry.

THE history of Western Australia's dairying industry has been a story of struggle against hardship, marketing problems and adverse criticism.

In spite of this the industry has steadily grown and greatly improved its efficiency.

Recreation Aspects Of The Lower Missouri River

United States Army Corps of Engineers, Omaha District

The Missouri, longest of America's great rivers, played an important and vital role in the westward expansion of the United States. For years it was the chief form of transportation connecting the populous cities of the east with the vast resources of the west. Generations of Americans have been thrilled by the many stories and adventures relating to it.

This is the river that for almost a century was a principal highway for the biggest adventure in North America -- the development of the west. It served in turn the explorer, the fur trader, the homesteader, and developed the rough …

Analysis Of Semi-Conductor Ignition Systems With Emphasis On Design, Construction, And Operation Of The "Ideal" System, Frank P. Rundle

Masters Theses

No abstract provided by author.

Investigation By Neutron Diffraction Utilizing White Neutron Radiation, Arlen Ray Schade

Doctoral Dissertations

"The most probable reactor core neutron velocity was determined by analysis of data obtained from single crystals of copper and lithium fluoride. Derivation of the relationship between the maximum in experimental count rate and the most probable velocity, an error analysis of the method, and the computer routine are given for the method used to obtain the most probable velocity. The most probable velocity was used to index the maxwellian distributions from polycrystalline materials. Investigations were done with white neutron radiation of various silicon steel samples of different preferred orientation. A method is described by which the preferred orientation of …

The Effect Of Polymer Structure On Drag Reduction In Nonpolar Solvents, Gin Chain Liaw

Doctoral Dissertations

"The effects of polymer chain flexibility, molecular weight and entanglement capacity, and of polymer solution concentration on drag reduction in nonpolar solvents were studied in this investigation. Three samples of polydimethyl siloxane in toluene, five samples of polyethylene oxide in benzene, two samples of cis-polyisoprene in toluene, trans-polyisoprene in toluene, cis-polybutadiene in toluene, ethyl cellulose in toluene and a copolymer of epichlorohydrin and polyethylene oxide in toluene were studied. Molecular weights of all polymers were estimated from intrinsic viscosity, except for the molecular weight of the copolymer which was given by the manufacturer. Turbulent and laminar flow pressure drop data …

Distributed Parameter Rc Network Analysis, Robert C. Peirson

Doctoral Dissertations

"Methods of analyzing uniform and tapered distribute [sic] parameter RC networks are reviewed and correlated in this dissertation. Multilayer networks and simple three layer networks are considered. Analogies between two-wire transmission line theory and multilayer distributed network theory are developed, i.e., standing wave and traveling wave concepts. An accurate computer-aided steady state analysis procedure is presented which has a solution accuracy that can be determined prior to actual analysis computations. The impulsive response of the uniform RC network is investigated with the goal of measuring the network's parameters. Procedures to determine the parameters R and C of a uniform RC …

Analysis Of A Focus Log Electrode In A Non Homogeneous Medium, John Julian Zenor

Doctoral Dissertations

"The mathematical model presented for the focused logging system is applicable to any resistance logging tool of the electrode type. Horizontal or cylindrical resistance interfaces may be included in any combinations. The tool and its environment are compartmentalized, and the integral form of the condition for continuity of current is applied to each compartment. Acceleration methods are applied to the iterative solution of the resulting large-scale system of linear equations. Two specific models are presented, one for the study of the effects of invasion and the other for the study of the effects of bed thickness on the apparent resistivity …

Effect Of Micelles On Flotation Of Metal Ions, Uriel Michael Oko

Doctoral Dissertations

"A study of the anionic surfactant, sodium dodecyl sulfate (SDS), and the dependency of the adsorption of divalent metal counterions such as copper and zinc at the air-water interface on its concentration in the solution, was undertaken in order to better understand the process of ion flotation. The study is divided into two broad categories, the first of which consists of the evaluation of the extent of aggregation of the surfactant molecules into micelles, and the effect of the divalent metal counterion concentration on this aggregation and on the critical concentration at which micelles start forming (cmc). This was accomplished …

A Study Of The Anodic Oxidation Of Ethylene On Gold And Gold-Platinum Alloys, San-Cheng Lai

Doctoral Dissertations

"The distinctive features of electrochemical energy conversion is the direct conversion of the chemical energy of a reaction into electrical energy without going through the intermediary of heat, thereby avoiding the Carnot limitation. Since it is theoretically possible to obtain electrical energy to the extent of the free energy change of the chemical reaction, the overall thermal efficiencies expected are nearly 100 percent. However, the observed efficiencies of most electrochemical energy converters are considerably lower than this due to a slowness of one or more of the intermediate steps of the overall reaction. There has been a recent surge of …

A Numerical Simulation Of Pressure Distribution And Radius Of Drainage In Infinite Radial Aquifers - Constant Rate Case, Alton John Nute

Doctoral Dissertations

"The diffusivity equation for the transient flow of slightly-compressible liquids has been solved for infinite radial aquifers, subject to constant terminal rates, by employing a Romberg integration of the Van Everdingen - Hurst explicitly solution over the transformed integral limits for .01̲TD>500, the classical solutions presented by Carslaw and Jaeger, Mortada, Theis, and others are incorporated in the digital analysis to yield dimensionless pressures for 40 selected dimensionless radius (RD) ratios between 1 and 64 for dimensionless time values of .0005 to 1000.0. A new expression for dimensionless pressure-distribution, PD'(RD, TD), as a fraction of well bore pressure drop …

Optical Reflectance Spectra Of Chromium (Iii) In Mgo-Ss, Thomas Spencer Montgomery

Doctoral Dissertations

"The valence state and coordination site of the transition-metal ion, chromium, was investigated in a MgO host lattice. The chromium ion incorporated into poly-crystalline MgO by quenching from elevated temperatures allowed investigation of a single crystalline phase, MgO-solid solution (ss). The chromium ion was confirmed to occur in the trivalent state and to occupy octahedral cation sites in the MgO lattice by the use of optical reflectance spectroscopy. The effect of the concentration of the chromium ion on the crystal field splitting energy, 10 Dq, permitted analysis over a range of Dq/B values. In conjunction, MgO-ss lattice parameters examined as …