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Articles 190711 - 190740 of 196433

Full-Text Articles in Engineering

Test 967: International Farmall 656 Hydrostatic (Diesel), Nebraska Tractor Test Lab Oct 1967

Test 967: International Farmall 656 Hydrostatic (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


Test 968: International Farmall 656 Hydrostatic (Gasoline), Nebraska Tractor Test Lab Oct 1967

Test 968: International Farmall 656 Hydrostatic (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


Test 966: Allis-Chalmers 170 (Gasoline), Nebraska Tractor Test Lab Oct 1967

Test 966: Allis-Chalmers 170 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


Test 964: Allis-Chalmers 180 (Diesel), Nebraska Tractor Test Lab Oct 1967

Test 964: Allis-Chalmers 180 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


Test 965: Allis-Chalmers 170 (Diesel), Nebraska Tractor Test Lab Oct 1967

Test 965: Allis-Chalmers 170 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


A Study Of A Differential Equation Found In Wave Propagation And Scattering Theory, Larry W. Thacker Oct 1967

A Study Of A Differential Equation Found In Wave Propagation And Scattering Theory, Larry W. Thacker

Electrical and Computer Engineering ETDs

The study of a differential equation that is found in the study of the scattering of waves from an inhomogeneous media and in atomic collision theory is presented. Several integral formulations for obtaining approximations to the solution are discussed and studied. Means of determining the phase shift in electron scattering problems are presented, and two methods for obtaining the reflection and transmission coefficients are developed and discussed.


A Study Of The Operating Characteristics Of An Adiabatic Calorimeter, Carl L. Wheeler Jr. Oct 1967

A Study Of The Operating Characteristics Of An Adiabatic Calorimeter, Carl L. Wheeler Jr.

Mechanical Engineering ETDs

1.1 General Problem

New technological developments in the areas of arc testing, hypersonic flow, rocket propulsion, and re-entry heat shield design require new thermophysical data on heat resistant materials. The present investigation is concerned with the development of a calorimeter which has the capabilities for obtaining specific and latent heat data on these materials in the temperature range of ambient to 1,000° C. The criteria for this development are

a. that operation be easy: the calorimeter should be operated by only one observer;

b. that data be rapidly determined: no more than two to eight hours should be required to …


Numerical Studies Of An Inverse Pinch Device, John Richard Freeman Oct 1967

Numerical Studies Of An Inverse Pinch Device, John Richard Freeman

Electrical and Computer Engineering ETDs

The inverse pinch configuration has been recognized as a possible means of producing stable, repeatable shock waves in a plasma for laboratory investigation. The simple geometry permits investigation of cases with or without an initial transverse magnetic field in an un-ionized or pre-ionized medium. Previous analytic work for this geometry has been restricted to a snowplow model, sometimes including coupling with the external circuitry. The solution presented here consists of a finite difference, Lagrangian coordinate system solution for a one-fluid hydromagnetic model. The hydromagnetic model chosen includes the effects of a variable degree of ionization, assuming a hydrogenic plasma. Complete …


An Analysis Of Research Methods In Projects In Industrial Arts, Loren Seebach, Jim Sherman Oct 1967

An Analysis Of Research Methods In Projects In Industrial Arts, Loren Seebach, Jim Sherman

Graduate Research Papers

The writers agreed that the basic problem of this study was to determine methods and procedures which are best suited and most valuable to the student pursuing the required work involved in the successful completion of the Projects course, Industrial Arts 33:270. It is hoped that these methods will prove to be of value to all research work in the Industrial Arts field. More specifically, the following questions should be kept in mind while reading this study:

1. What are the research methods and procedures used in the successful completion of the work required in Industrial Arts 33:270?

2. Of …


The Overall Force-Deformation Relations Of Latticed Frames, Syamal C. Dasgupta Sep 1967

The Overall Force-Deformation Relations Of Latticed Frames, Syamal C. Dasgupta

Civil Engineering ETDs

Most elastic bodies in the field of civil engineering are composed of discrete elements which are interconnected in some way. A distinct characteristic of such systems is the presence of jump discontinuity in the physical properties of the systems. Trusses, ribbed shells, multi­story frames, continuous and folded plates, built-in columns, etc. are a few examples of this kind. From the conventional methods of analysis of these systems, it can be realized that considerable effort is being expended to approximate the actual system by .means of a relatively simpler system. Most of the established methods of analysis of such systems involve …


Ua37/2 History Of The Industrial Arts Department, Walter Nalbach Sep 1967

Ua37/2 History Of The Industrial Arts Department, Walter Nalbach

Faculty/Staff Personal Papers

History of the WKU Industrial Arts Department by Walter Nalbach with notes by L.T. Smith.


Field Manual Fm 5-30, Engineer Intelligence, September 1967 (With Change 1, 1 October 1971), Robert Bolin , Depositor Sep 1967

Field Manual Fm 5-30, Engineer Intelligence, September 1967 (With Change 1, 1 October 1971), Robert Bolin , Depositor

United States Department of Defense Military Intelligence

(1) According to FM 21-205, 18 Jan 1944, "Field Manuals constitute the primary means of promulgating the basic doctrines of military training and operations."

(2) This manual supersedes FM 5-30, 1959.

(3) This manual is much different from the manual it superseded because before 1962 Engineer Intelligence was defined as intelligence about foreign military equipment and on military organizations analogous to the US Army Corps of Engineers. In addition, two civil organizations within the Corps of Engineers, the Board of engineers for Rivers and Harbors and the Beach Erosion Board, produced intelligence about foreign harbors and potential landing beaches of …


Waterways: Comprehensive Regional Plan Series Report Four, East Central Florida Regional Planning Council Sep 1967

Waterways: Comprehensive Regional Plan Series Report Four, East Central Florida Regional Planning Council

City and Regional Planning -- Florida

A plan to make use of the lakes, rivers, canals, and oceans for commerce and other development


Compensating Techniques For Reducing The Response Of Transistor Circiuts In A Transient Radiation Environment., Goebel Davis Jr. Aug 1967

Compensating Techniques For Reducing The Response Of Transistor Circiuts In A Transient Radiation Environment., Goebel Davis Jr.

Electrical and Computer Engineering ETDs

The effect of transient radiation on electronic components has become a vital concern of the military. It is mandatory that certain critical ground installations, aircraft, and missile systems for the military be both reliable and effective and if possible not be rendered temporarily or permanently inoperative due to exposure to a pulse of gamma radiation.


9th Annual Meeting Rocky Mountain Spectroscopy Conference Aug 1967

9th Annual Meeting Rocky Mountain Spectroscopy Conference

Rocky Mountain Conference on Magnetic Resonance

Program and abstracts from the 9th annual meeting of the Rocky Mountain Spectroscopy Conference, sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 7-8, 1967.


Noise In Cadmium Sulfide & Cadmium Selenide Photoconductive Cells, Edward Foster Aug 1967

Noise In Cadmium Sulfide & Cadmium Selenide Photoconductive Cells, Edward Foster

Masters Theses & Specialist Projects

The primary object of this investigation is to design a system, including equipment and procedures, that can be used to evaluate the noise characteristics of photoconductive cells. The data once collected must be in a comprehensive and useful form. The secondary object is to use this system to evaluate a large number of cells of various types and to compare their noise profiles in a manner such that definite conclusions can be drawn concerning the absolute noise levels and profiles generated by the various cell types and the relations that may exist between the cells' noise output and the way …


Existence Of Two Types Of Drag Reduction In Pipe Flow Of Dilute Polymer Solutions, Harry C. Hershey, Jacques L. Zakin Aug 1967

Existence Of Two Types Of Drag Reduction In Pipe Flow Of Dilute Polymer Solutions, Harry C. Hershey, Jacques L. Zakin

Chemical and Biochemical Engineering Faculty Research & Creative Works

Drag reduction in the pipe flow of polymer solutions is shown to be of two types which apparently occur by two separate mechanisms. In turbulent flow, drag reduction is probably caused by viscoelastic effects. The critical solvent Reynolds number at the onset of drag reduction is proportional to about the first power of the diameter. Thus, the critical velocity is independent of tube diameter. Polymers dissolved in good solvents show more drag reduction than in poor solvents. The other type of drag reduction occurs when the laminar region is extended to high Reynolds numbers. It is followed by a transition …


Numerical Differentiation Of Equally Spaced And Not Equally Spaced Experimental Data, Harry C. Hershey, Jacques L. Zakin, Robert Simha Aug 1967

Numerical Differentiation Of Equally Spaced And Not Equally Spaced Experimental Data, Harry C. Hershey, Jacques L. Zakin, Robert Simha

Chemical and Biochemical Engineering Faculty Research & Creative Works

Procedures are given for smoothing and differentiating experimental data with both equal and nonequal spacing in the independent variable. Selection of the number of points to be included in the "movable strip" technique and of the degree of the polynomial is discussed. Equations are given to estimate the error by calculating a confidence interval on each slope. A technique for handling certain types of nonrandom errors is presented. © 1967, American Chemical Society. All rights reserved.


Establishment And Maintenance Of Roadside Plantings And Turf, K. C. Arnold, J. T. Griffin Aug 1967

Establishment And Maintenance Of Roadside Plantings And Turf, K. C. Arnold, J. T. Griffin

Kentucky Transportation Center Research Report

The suitability and choice of different plant materials for roadside planting will be governed primarily by cost of establishment and maintenance, by the effectiveness in stabilizing the soil, and by safety and beauty achieved. It must be recognized that conditions often encountered in roadside planting situations are different from normal conditions found in fields and yards. Soils often consist of unclassified material and are not agricultural soils in the usual sense. The material usually contains very little if any humus and little plant food and often is highly susceptible to erosion. Under these extreme conditions the establishment and maintenance of …


The Development And Use Of A Double Beam Photoelectric Polarimeter For The Study Of The Faraday Effect, John Norman Rowe Aug 1967

The Development And Use Of A Double Beam Photoelectric Polarimeter For The Study Of The Faraday Effect, John Norman Rowe

Masters Theses

No abstract provided.


A Study Of Frictional Drag Force Reduction On A Flat Plate By The Injection Of A Dilute Solution Of Guar Gum Into The Boundary Layer, Neil Henry Clay Aug 1967

A Study Of Frictional Drag Force Reduction On A Flat Plate By The Injection Of A Dilute Solution Of Guar Gum Into The Boundary Layer, Neil Henry Clay

Theses and Dissertations

The study of frictional drag force reduction has been the subject of much research for many years. One of the significant developments in the field of frictional drag force reduction has been the discovery of the effectiveness of dilute polymer solutions in reducing drag. By using dilute high-polymer solutions frictional drag forces in pipe flow have been reduced by as much as 70 per cent.


A Study Of Thermal Responses Of A Body Of Complex Geometry To A Moving Heat Source, J. Norman Smith Aug 1967

A Study Of Thermal Responses Of A Body Of Complex Geometry To A Moving Heat Source, J. Norman Smith

Theses and Dissertations

The effect of the fusion welding process upon the metals being welded is a matter of great interest and has been the subject of much investigation, both theoretical and experimental. The properties of metals are determined by the structure of their crystals (within limits for any given metal), and the crystalline structure is determined by heating and cooling rates. Thus the knowledge of temperatures, and heating and cooling rates, becomes the key to understanding these effects of heating. Since the greatest part of fusion welding is done using a gas torch or an electric arc, the necessary theoretical study is …


Model Study And Analysis Of The Flow Elements Of A Recirculation Mixing System, Albert Warren Berg Jul 1967

Model Study And Analysis Of The Flow Elements Of A Recirculation Mixing System, Albert Warren Berg

Theses and Dissertations

The term water clarifier as used in this text refers to a versatile water treatment unit which combines flocculation and coagulation, clarification and positive sludge removal in a single tank. Water clarifiers are very compact units which are being used in municipal and industrial water treatment for the removal of turbidity, algae, color, iron and silica; lime or lime-soda softening; magnesium precipitation; brine clarification; and waste water clarification with or without chemicals. Water clarifier units have found wide use in the sanitary field, providing high removals in the pre-treatment of sewage and in secondary sewage treatment through addition of coagulants.


Strength And Behavior Of Light-Gage Steel Shear Diaphragms, Larry D. Luttrell Jul 1967

Strength And Behavior Of Light-Gage Steel Shear Diaphragms, Larry D. Luttrell

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

Light-gage steel roof, wall, and floor systems may be used to transfer in-plane shear forces from one part of a framed structure to another, leading to reduced loads in parts of the structure. Such behavior is particularly noticeable in buildings that have rigid shear walls and are subjected to lateral loads such as those arising from wind or earthquakes. The transfer of shear force through such diaphragms is dependent on the shear strength and is particularly sensitive to shear stiffness. The stiffness of the diaphragm must be considered in relationship to the stiffness of the structural frame. Diaphragm response to …


Water Resources Of Tacoma, Washington, Richard Martin Glaser Jul 1967

Water Resources Of Tacoma, Washington, Richard Martin Glaser

Graduate Student Research Papers

This study explores the fresh water and hydroelectricity resources of the City of Tacoma, Washington. The history and development of the water supply and hydroelectric facilities is examined. One can see that the development of the water resources has been directly affected by the growth in population and industry and that the nearness to the city of development sites has been an aid in this development. With the amount of water available at present and the increase in hydro-electric facilities during this decade, the future outlook for Tacoma in the field of water resources seems bright.


Relationships Between Some Properties Of Pure Homologous Organic Liquids, Herbert Rudolph Kemme Jun 1967

Relationships Between Some Properties Of Pure Homologous Organic Liquids, Herbert Rudolph Kemme

Dissertations

The vapor pressures of eleven primary straight chain alkyl chlorides and eleven primary straight chain alcohols between C3 and C16 were determined within a range of 5 to 760 mm Hg. These data were obtained by determining the boiling points of the pure materials at various pressures by using differential thermal analysis. The boiling points were determined with a precision of -.1 degree Centigrade at a 95 per cent C.I. The Antoine equation was used to analytically describe the data. The constants for this equation were determined by a multiple linear regression technique for each individual compound. The heats of …


Kinetics Of Hydrogen Reduction By Manganese Dioxide, Herbert Eugen Barner Jun 1967

Kinetics Of Hydrogen Reduction By Manganese Dioxide, Herbert Eugen Barner

Dissertations

Samples of synthetic pyrolusite were reduced in hydrogen at various partial pressures in the temperature range of 200° to 500°C. Most reduction experiments were conducted using a Pyrex vertical-tube reactor, in which small beds of porous particles (0.07 to 0.21 mm.) or single porous pellets of the oxide were suspended. The reaction kinetics were followed by recovering and weighing the water product formed during measured time intervals, and the intermediate reduction products were identified by X-ray diffraction analysis.

The data show that reduction proceeds through the sequence MnO2->Mn2O3->OMn3O4- …


Open-Loop Frequency Response Analysis Of A Jacketed Kettle With Internal Heating/Cooling Coil, Wayne P. Brenckle Jun 1967

Open-Loop Frequency Response Analysis Of A Jacketed Kettle With Internal Heating/Cooling Coil, Wayne P. Brenckle

Theses

This work was performed to investigate the response and stability of a jacketed kettle with internal heating/cooling coils and glasteel thermowell. This system was first analyzed mathematically by deriving transfer functions for each component and then combining all component equations together to give the overall system transfer function. The mathematical model was then checked by frequency response analysis of the system. Bode plots of the system were prepared and the effect of the thermowell was analyzed.

Nyquist plots of the system were used as the criteria for determining stability, and obtaining the open-loop gain necessary to give optimum closed-loop response. …


Heat And Mass Transfer In The Absence Of Air, James Joseph Howley Jun 1967

Heat And Mass Transfer In The Absence Of Air, James Joseph Howley

Theses

The effects of heat and mass transfer across a frosted heat exchanger operating in the absence of air was evaluated. It is felt that this work could be applied to processes such as desalination of water or the purification of materials by reverse sublimation.

The system consisted of a single 1/2” O.D. stainless steel tube mounted within a 3" O.D. plexiglas tube with the ends suitably flanged. A vacuum was maintained in the annular space. Refrigerated ethylene glycol passed through the inner tube in laminar flow. A series of runs with substantially air-free water vapor added to the annular space …


The Reaction Of Cyclic Acetals With N-Halo Compounds, Nicholas Hrinkevich Jun 1967

The Reaction Of Cyclic Acetals With N-Halo Compounds, Nicholas Hrinkevich

Theses

Chemical reactions were carried out to determine the products of the halogenation of cyclic acetals with N-halo compounds (specifically N-bromosuccinimide and N-chlorosuccinimide) under conditions essentially free of those directly associated with free radical mechanisms (photocatalysis, peroxides, azonitriles, etc.).

Cyclic acetals were prepared and halogenated with bromine (Br2) or N-bromosuccinimide (NBS) or N-chlorosuccinimide (NCS). The distilled product from each reaction after workup was analyzed by vapor phase chromatography (VPC). The major components from the VPC were collected and identified by either infrared (IR) or nuclear magnetic resonance (NMR) spectroscopy and elementary analysis.

A mixture of compounds was found in each distilled …