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Articles 189541 - 189570 of 193255

Full-Text Articles in Engineering

Australian Spark Arrester Tests : Spark Arrester For Fordson Dexta, W. F. Baillie, G. H. Vasey Jan 1960

Australian Spark Arrester Tests : Spark Arrester For Fordson Dexta, W. F. Baillie, G. H. Vasey

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

FORMAL tests on spark arresters are conducted by The Tractor Testing Committee at the Testing Station, Werribee, on behalf of those Companies concerned with tractors, engines or spark arresters who wish to have these equipments tested.

The arrester is tested on the engine for which it is especially designed or if this is not convenient, it is tested on an engine having the characteristics and power for which the spark arrester is intended.


Australian Tractor Tests : No. 31, G. H. Vasey, W. F. Baillie Jan 1960

Australian Tractor Tests : No. 31, G. H. Vasey, W. F. Baillie

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

THIS Report is taken from the full Technical Report No. 31 of this test; test results are shown here in briefer form: fuller explanations are added. Values quoted may be rounded out to two instead of three significant figures; to this extent the values may differ slightly but not significantly from those shown in the Technical Report. Graphs of belt test performance, shown in the Technical Report, are not shown here.


Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation Jan 1960

Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation

Publications (WR)

Reservoirs are becoming an increasingly prominent feature of the American landscape. Built for flood mitigation and to change a fluctuating river into a dependable source of water for irrigation, power, and other purposes, they are predestined, like natural lakes, to be destroyed sometime following their creation. Sedimentation sooner or later robs most lakes and reservoirs of their capacity to store water. The significance of sedimentation in the life of Lake Mead, the largest artificial reservoir in the world, was realized when the plan for the reservoir was conceived, and an aerial survey of the floor was made in 1935 before …


Some Physical, Chemical, And Thermohydrodynamic Parameters Of Explosive Ammonium Nitrate-Fuel Oil Mixtures, Joseph J. Yancik Jan 1960

Some Physical, Chemical, And Thermohydrodynamic Parameters Of Explosive Ammonium Nitrate-Fuel Oil Mixtures, Joseph J. Yancik

Doctoral Dissertations

"The explosive properties of ammonium nitrate-fuel blasting agents were investigated by measuring their detonation velocity and sensitivity. Detonation velocity was measured by a pin oscillograph method with a modified pin technique. Five types of tests were used to evaluate the explosive sensitivity of AN-fuel mixtures under varied environmental conditions. These tests measured the confined and unconfined critical diameter, minimum primer for a three inch diameter iron pipe confined charge, for an unconfined charge at the critical diameter, and minimum primacord primer under special conditions.

Properties of ammonium nitrate-fuel blasting agents were evaluated by considering the effects which each component of …


Some Dynamic Creep Characteristics Of Gypsum, Ikram-Ul-Haq Dar Jan 1960

Some Dynamic Creep Characteristics Of Gypsum, Ikram-Ul-Haq Dar

Masters Theses

"A review of literature concerned with time-dependent deformation of geologic and non-geologic materials is presented. A static loading machine and a four unit dynamic loading unit was designed and assembled to evaluate static and dynamic creep properties of gypsum. The tests were run for various levels of static loads, and superimposed dynamic loads. Investigations were carried out to determine the relationships, if any, between impact energy, impact velocity and momentum, and dynamic strains. Viscoelastic coefficients were determined for the investigations. The conclusion was presented that time-dependent strain in the dynamic creep tests of the particular gypsum rock tested is a …


Factors That Influenced Homesteading And Land Abandonment In San Juan County, Utah, Melvin J. Frost Jan 1960

Factors That Influenced Homesteading And Land Abandonment In San Juan County, Utah, Melvin J. Frost

Theses and Dissertations

Homesteading in San Juan County, Utah is for the most part, located on Sage Plain at elevations between 6,000 to 7,200 feet. Sage Plain is an undulating surface deeply dissected with canyons. The soil is relatively shallow and the predominant vegetation is pinyon, juniper, sage brush and blue-stem grass.

The 52 year mean precipitation is 15.47 inches. Since the beginning of weather records there has been a noticeable decrease in the annual precipitation. There is generally sufficient moisture to mature winter wheat. Pinto beans are also grown in the more favorable locations.

Principle factors that have influenced homesteading and land …


Analysis And Synthesis Of A Current Regulator System, William P. Aiello Jan 1960

Analysis And Synthesis Of A Current Regulator System, William P. Aiello

Electrical and Computer Engineering ETDs

This report describes a practical current regulator system used to accurately control the current delivered by a 500 kilowatt motor-generator unit. The generator supplies its current of 2000 amperes at 250 volts to a large water-cooled air-core solenoid used by LASL Group P-7 for experiments in connection with the Sherwood program.

After a general discussion of the system specifications and the basic regulator loop, each of the components in the basic regulator loop is described in considerable detail. The description, in most cases, is mathematical in nature although many circuit diagrams are included with brief descriptions when necessary for proper …


A Follow-Up Study Of Former Senior High School Industrial Arts Students At Belle Plaine, Iowa, Donald E. Wallis Jan 1960

A Follow-Up Study Of Former Senior High School Industrial Arts Students At Belle Plaine, Iowa, Donald E. Wallis

Dissertations and Theses @ UNI

The primary purpose of this study was to determine, through the experiences and present status of the graduates and drop-outs who enrolled for industrial arts at the Belle Plaine High School, how effectively the industrial arts program had met their vocational as well as their general needs after leaving high school.

Further purposes of the study were 1) to evaluate the present industrial arts program in the school; and (2) to recommend changes which might enable the industrial arts department to meet the needs of youth more effectively.


A Theoretical And Experimental Analysis Of A Hall Generator, David L. Endsley Dec 1959

A Theoretical And Experimental Analysis Of A Hall Generator, David L. Endsley

Electrical and Computer Engineering ETDs

This is a study of the behavior of a "Hall Effect" device by theoretical and experimental methods to determine if its operation may be predicated for various magnetic fields, output resistances, operating temperatures, input resistances, input control currents, and device construction.

This information should prove useful in the design of a circuit where the use of a "Hall Effect" device is contemplated.


Nasa News, Space Enterprises, Inc. Dec 1959

Nasa News, Space Enterprises, Inc.

Space Journal

No abstract provided.


The Weightless Man, Herbert D. Stallings, Siegfried J. Gerathewohl Dec 1959

The Weightless Man, Herbert D. Stallings, Siegfried J. Gerathewohl

Space Journal

No abstract provided.


Front Matter, Space Enterprises, Inc. Dec 1959

Front Matter, Space Enterprises, Inc.

Space Journal

No abstract provided.


Free Information, Space Enterprises, Inc. Dec 1959

Free Information, Space Enterprises, Inc.

Space Journal

No abstract provided.


Meteorites, Space Enterprises, Inc. Dec 1959

Meteorites, Space Enterprises, Inc.

Space Journal

No abstract provided.


Space Focus, Space Enterprises, Inc. Dec 1959

Space Focus, Space Enterprises, Inc.

Space Journal

No abstract provided.


Editorial, Space Enterprises, Inc. Dec 1959

Editorial, Space Enterprises, Inc.

Space Journal

No abstract provided.


Space Journal, Vol. 2, No. 2, December 1959, Space Enterprises, Inc. Dec 1959

Space Journal, Vol. 2, No. 2, December 1959, Space Enterprises, Inc.

Space Journal

No abstract provided.


Washington Report, Space Enterprises, Inc. Dec 1959

Washington Report, Space Enterprises, Inc.

Space Journal

No abstract provided.


Roy Marquart, The Ramjet Man, Lois Philmus Dec 1959

Roy Marquart, The Ramjet Man, Lois Philmus

Space Journal

No abstract provided.


A Search For The Space Man's Food, Robert G. Tischer Dec 1959

A Search For The Space Man's Food, Robert G. Tischer

Space Journal

No abstract provided.


Primitive Fear, John Hulley Dec 1959

Primitive Fear, John Hulley

Space Journal

No abstract provided.


Atlas Missile, Space Enterprises, Inc. Dec 1959

Atlas Missile, Space Enterprises, Inc.

Space Journal

No abstract provided.


New Products, Space Enterprises, Inc. Dec 1959

New Products, Space Enterprises, Inc.

Space Journal

No abstract provided.


Reaction-Letters, Space Enterprises, Inc. Dec 1959

Reaction-Letters, Space Enterprises, Inc.

Space Journal

No abstract provided.


Space And The Law, Menachem Sheffy Dec 1959

Space And The Law, Menachem Sheffy

Space Journal

No abstract provided.


Books, Space Enterprises, Inc. Dec 1959

Books, Space Enterprises, Inc.

Space Journal

No abstract provided.


Back Matter, Space Enterprises, Inc. Dec 1959

Back Matter, Space Enterprises, Inc.

Space Journal

No abstract provided.


Special Text, St 10-120-1, Quartermaster Intelligence: Organization And Procedures, December 1959, Robert Bolin , Depositor Nov 1959

Special Text, St 10-120-1, Quartermaster Intelligence: Organization And Procedures, December 1959, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a textbook used at the Army Quartermaster School. In the 1950s, military schools related to one of the Army Technical Services were run by that service. Since the format and content of Army field manuals were often very similar to those of special texts, the same staffs often prepared both

The modern US Army vision of the technical intelligence developed during World War II. Shortly before World War II, Army Technical Services had been instructed to set up intelligence sections in the offices of their chiefs. The technical services were bureaus which supplied weapons, equipment, and services to …


Engineer Intelligence Guide 31, Production Of Cross-Country Movement Studies, December 1959, Military Geology Branch, Us Geographical Survey And The Soil Conservation Service, Us Department Of Agriculture, Robert Bolin , Depositor Nov 1959

Engineer Intelligence Guide 31, Production Of Cross-Country Movement Studies, December 1959, Military Geology Branch, Us Geographical Survey And The Soil Conservation Service, Us Department Of Agriculture, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

In 1958, the Army Corps of Engineers was responsible for the intelligence related to the surface of the earth, excluding the oceans and seas. Those responsibilities were discharged by subordinate organizations and contractors under the directions of the Intelligence and Mapping division. Engineer Intelligence Guides (EIGS) were prepared “to provide orientation, direction, and instruction in the field of Engineer intelligence.”

This guide was prepared to give instructions for preparing specialized maps containing information showing impediments to cross-country movement. Appendix I, an example of a CCM map, was created by adding an overlay on a sheet from the US Army Map …


Information Free/Men Of Science, Space Enterprises, Inc. Sep 1959

Information Free/Men Of Science, Space Enterprises, Inc.

Space Journal

No abstract provided.