Digital Commons Network^™

A Building System Using Precast Concrete Sandwich Panels From Footing To Roof, E. L. Hansen, J. O. Curtis

International Symposia on Low Cost Housing Problems

No abstract provided.

Siting Criteria For Low Rent Public Housing, Charles O. Quade

International Symposia on Low Cost Housing Problems

No abstract provided.

The Mobile Home Is Low-Cost Housing -- Or Is It?, Walter L. Meyer

International Symposia on Low Cost Housing Problems

No abstract provided.

Foundations For Low-Cost Housing, Norbert O. Schmidt

International Symposia on Low Cost Housing Problems

No abstract provided.

Low Cost Housing Projects In India, A. R. Santhakumar

International Symposia on Low Cost Housing Problems

No abstract provided.

Low Income System Key Assembly, Darin V. Liska

International Symposia on Low Cost Housing Problems

No abstract provided.

“Arachne” (A Construction Method For Industrialized Housing), J. P. D. Kergueno

International Symposia on Low Cost Housing Problems

No abstract provided.

Modular Housing Systems Around The World And In The U.S. A., Nitin N. Shah

International Symposia on Low Cost Housing Problems

No abstract provided.

Increasing The Productivity Of Housing Development Corporations, Carol Van Astyne

International Symposia on Low Cost Housing Problems

No abstract provided.

Effect Of The Supply Of Low Cost Housing On In-Migration Of The Unskilled, Daniel L. Babcock

International Symposia on Low Cost Housing Problems

No abstract provided.

A Place In The Sun, Arthur Monsey

International Symposia on Low Cost Housing Problems

No abstract provided.

Impact Of Planned Policy And Sociological Factors On Low Cost Housing Programmes, D. R. Sikka

International Symposia on Low Cost Housing Problems

No abstract provided.

Modular Housing, Herbert Behrend

International Symposia on Low Cost Housing Problems

No abstract provided.

Low-Cost Housing Through Total Planning, Peter J. Hammond

International Symposia on Low Cost Housing Problems

No abstract provided.

The Fe-Ho Binary System, G. J. Roe, Thomas J. O'Keefe

Materials Science and Engineering Faculty Research & Creative Works

The Fe-Ho phase diagram was determined on the basis of data obtained by X-ray diffraction, metallographic and differential thermal analysis techniques. Since emphasis was centered in the region where intermetallic compounds predominate, neither the iron nor holmium terminal regions were included in this study. Eutectic reactions were found to occur at 16.5 wt pct Fe and 875° C, 61 wt pct Fe and 1284° C, and 79 wt pct Fe and 1338° C. The congruent melting points of the compounds Ho6Fe23 and Ho2Fe17 were found to be 1332° and 1343° C, respectively. Two other intermetallic compounds were found, HoFe2 and …

The Design Of A Laser Doppler Velocimeter, Marlo R. Anderson

Theses and Dissertations

A relatively new method of measuring local velocity in a fluid stream has been devised which eliminates some of the inherent problems of the traditional methods. This method senses the Doppler shift of light scattered from a laser beam incident on particles suspended in the fluid. The Doppler shift is proportional to the particles (or fluid) velocity. This new technique has several distinct advantages over the more traditional methods of velocity measurement.

A Study Of The Effects Of Some Parameters Of The Galloping Of Electric Transmission Lines, Leland J. Coleman

Theses and Dissertations

Freezing rainstorms coupled with moderate winds have often been observed to cause telephone lines and power transmission cables to begin bouncing up and down. This slow frequency high amplitude oscillation, or galloping as it is sometimes called, can build up to large amplitudes before the oscillation either damps out or persists at some constant amplitude. It has been reported by Edwards and Livingston [1] that the amplitude of galloping on transmission lines has been as large as forty feet. Galloping oscillations occur at relatively low frequencies; from .1 to 1 Hz. [1] near the natural frequency of the suspended cable.

The 1963-64 Lake Mead Survey, J. M. Lara, J. I. Sanders, Bureau Of Reclamation

Publications (WR)

The 1963-64 Lake Mead survey was run to compute the reservoir capacity. Results of the geodetic and hydrographic surveys and sediment sampling equipment are described. The geodetic survey showed Hoover Dam subsided an average of 118 mm since 1935. Sonic sounding, photogrammetry, and crosssectional profiling methods were used to run the hydrographic survey. Reservoir area and capacity tables were generated using an electronic computer. The present lake capacity is 29,755,000 acre-ft and the reservoir surface area is 162,700 acres at elevation 1229 ft. 2,720,000 acre-ft of sediments accumulated in the lake since 1935. A unit weight of 60 Ib/cu ft …

A Dynamic Model Of A Small Manufacturing Company, Abraham John

Theses and Dissertations

A manufacturing company typically has the objective of maximizing the long-term value of its common stock while satisfying its customers. To achieve this, the company might increase the quantity and improve the quality of production. Since the company is operating in a dynamic environment, its policies should be dynamic also, to achieve its objective.

A Data Reduction Technique For Drag-Coefficient Data For Spheres, Stephen Thomas Merrell

Theses and Dissertations

The object of this investigation was to obtain a reliable technique for finding the drag coefficient for a sphere falling at a non-constant velocity through air. And then to apply this technique to the data collected by R. G. Lunnon in 1925^(4)*.

An Optimization Technique Applied To The Determination Of Modal Damping Coefficients, Craig C. Smith

Theses and Dissertations

Although analytical techniques are generally available for the simulation of dynamic systems, often these techniques require a great deal of computer time and storage. This difficulty was vividly pointed out by a previous thesis undertaken in this Department by R. L. Webster (1). Mr. Webster undertook the determination of orthotropic material properties using dynamic response test data from plates. A major difficulty which was encountered was the enormous amount of computer time required for the simulation. This thesis is an investigation of a method which when fully developed, may provide the ability to simulate such systems much more efficiently.

Rotating Cylinder Apparatus For Rarefied Gas Flow Studies, Darryl J. Alofs, George S. Springer

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A rotating cylinder type apparatus is described, suitable for determining drag in cylindrical Couette flow of rarefied gases, and for evaluating tangential momentum accommodation coefficients at gas-solid boundaries. The apparatus is equipped with a damping device using diffusion pump oil for eliminating undesirable oscillations in the system. Tangential momentum accommodation coefficients of argon on aluminum were determined with an accuracy of ± 2.5%. The results obtained indicate that the apparatus may be used over a wide pressure range, corresponding to free molecule and continuum flow conditions.

Strength Of Bolted And Welded Connections In Stainless Steel, George Winter, S. J. Errera, B. M. Tang, D. W. Popowich

CCFSS Library (1939 - present)

INTRODUCTION In 1968 the American Iron and Steel Institute published the first edition of the "Specification for the Design of Light Gage Cold-Formed Stainless Steel Structural Members"(1)8, , based largely on research sponsored by AISI at Cornell University. (2) That Specification covers the design of members cold-formed from six common types of austenitic stainless steel in the annealed and strain flattened condition. Additional research has been underway at Cornell on austenitic Type 301 stainless steel in the 1/4 and 1/2 hard tempers, to determine the structural behavior of these higher strength materials(3), including the behavior of structural connections. The properties …

Transport Calculations In Particle-Loaded Media, Gary J. Scrivner

Nuclear Engineering ETDs

Particle-loaded materials are sometimes used for radiation shielding. In many cases shielding calculations, performed with the assumption of a homogeneous medium having the appropriate ratio of particle-to-matrix material, are grossly inadequate. The exact distribution of particles within such materials is probabilistic in nature, and, therefore quantities, such as the transmitted flux, become random variables. To reasonably evaluate the effectiveness of this type shielding, one must obtain the expected values and corresponding standard deviations of those quantities of interest.

In this dissertation, two models of a particle-loaded shield are investigated. The first is an artificial material postulated to consist of constant-thickness …

Complex Disjunctive Decompositions Of Incompletely Specified Boolean Functions., Stuart Lee Hight

Electrical and Computer Engineering ETDs

This dissertation extends the theory of Ashenhurst and Curtis on complex disjunctive decompositions of Boolean functions. The extension takes this theory into the realm of incompletely specifies Boolean functions, that is, those with don-t-care conditions (phi’s). First, the theory is extended to a simple decomposition through a compatibility relation on incompletely specified Boolean vectors whose elements are 0’s, 1’s and phi’s. This relations is applied to the columns of the decomposition charts used by Curtis and Ashenhurst. To accomplish complex disjunctive decompositions, a new Boolean variable, called a constrained don’t-care is introduced as a component of a new Boolean vector …

Prediction Of Hugoniots For Soil Using The Theory Of Mixtures., Robert O. Davis

Civil Engineering ETDs

An analytic derivation for the constitutive relation governing the response of soil to high intensity shock loading is presented. The derivation is based on the contemporary theory of mixtures. Soil is envisioned as a three component mixture (solids, water, and air) and jump equations for each of the components are derived. Mass, momentum, and energy transfer between the various components is allowed and it is assumed that the solid and water components obey a Mie-Gruneisen equation of state. A mixture Hugoniot is developed and compared with published experimental results.

Wetting Of Carbon Filaments By Organic Liquids, Linden Tewes Halstead

Chemical and Biological Engineering ETDs

The object of this was to find the factors controlling the rate of wetting of carbon filaments by organic liquids. To carry out this study, the factors affecting the wetting of surfaces, such as the surface tension of liquids, and the contact angle formed at the liquid-vapor-solid boundary of a three phase system were discussed. At the same time, the anomalies with respect to contact angle, such as that relating to advancing and receding contact angles to dynamic angles was considered. As complimentary information, the methods used to obtain carbon and graphite filaments from cellulose and molten pyrolysis products were …

The Silicon Micro-Hall Device: Design, Fabrication, And Applications, Roy Arthur Colclaser

Electrical and Computer Engineering ETDs

A family of silicon devices, the micro-Hall devices, are described. These include the diffused, diffused-epitaxial, isolation-diffused-epitaxial, mesa-epitaxial, and silicon-on­sapphire isolation-diffused structures. The design and fab­rication of these devices are presented in complete detail.

The theory of the Hall effect and its applications to the theory of fast neutron displacement damage to silicon is presented. A quantitative model of radiation damage in the form of spherical intrinsic voids representing the damage clusters is described.

Three applications of the isolation-diffused-epitaxial silicon micro-Hall device are discussed in the following paragraphs.

The first of these, the evaluation of epitaxial silicon, has three features which …

A Computer Program For The Design Of Packed Extraction Columns, George P. Gaccione

Theses

A computer program for the design of packed extraction columns has been developed. This program can operate with a minimum of data of the type that can easily be determined or estimated. The program can be used to investigate design alternates during the preparation of project cost estimates and for the final design of extraction columns.

A Simplification Heuristic For Large Flow Tables, R. J. Smith, James H. Tracey

Electrical and Computer Engineering Faculty Research & Creative Works

Flow tables specifying large asynchronous sequential circuits often contain more internal states than are required to specify desired circuit behavior. Known minimization techniques appear unsuited for reduction of such large (rows X columns > 250) flow tables, because of excessive computation and intermediate data requirements for problems of this size. The algorithm described here is intended to rapidly produce a simplified-but in general non-minimal-flow table. It is most economical when applied to extremely large tables and was devised primarily for automated design applications. The procedure has been programmed in PL/1 and has been incorporated into an asynchronous sequential circuit design automation …