Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 137251 - 137280 of 139852

Full-Text Articles in Engineering

A Study Of Some Raw Materials For The Manufacture Of Silica Brick, Charles E. Shulze Jan 1951

A Study Of Some Raw Materials For The Manufacture Of Silica Brick, Charles E. Shulze

Masters Theses

"The ability of silica to carry a load to within a few degrees of its melting point and its tolerance for comparatively high concentrations of iron oxide and lime, have enabled it to maintain its position as the number one steelplant refractory. It is estimated that at least half of the volume of refractories used in the steel plant are silica bricks. Consequently the manufacture of silica refractories forms an industry of considerable importance.

Raw materials suitable for the manufacture of silica brick are widely distributed, but only a small number of deposits are used commercially for one reason or ...


The Effect Of Temper Carbon Nodule Number On The Physical Properties Of A Malleable Iron, William J. Ruprecht Jan 1951

The Effect Of Temper Carbon Nodule Number On The Physical Properties Of A Malleable Iron, William J. Ruprecht

Masters Theses

"It is known that the number of temper carbon nodules per unit volume of malleable iron has an effect on both the rate of anneal and on the resulting physical properties, but neither have been clearly worked out quantitatively. The purpose of this investigation is to ascertain the effect of temper carbon nodule number on certain of the physical properties of a commercial malleable iron.

Quantitative determinations of the effect of temper carbon nodule number would be essential from a theoretical viewpoint in working out the mechanism of graphtization, and would be useful in commercial practice in showing the most ...


Well Interference In The South Silica Field, Langdon B. Taylor Jan 1951

Well Interference In The South Silica Field, Langdon B. Taylor

Masters Theses

"During World War II the Federal Government restricted oil-field drilling in the United States in order to conserve steel. The wartime regulations required 40-acre spacing in most areas. At the close of the war, the Federal drilling restrictions were lifted, and control of oil-well spacing reverted to the several state regulatory bodies. Each of these state agencies was then confronted with this problem: should 40-acre spacing be continued or should pre-war 10- and 20-acre spacing patterns be re-established?

The regulatory authority in Kansas, the State Corporation Commission, ordered an investigation in January, 1946, for the purpose of developing information upon ...


The Relationship Between The Centrifuge Moisture Equivalent And The Vacuum Moisture Equivalent In Soils, Samuel Payton Halcomb Jan 1951

The Relationship Between The Centrifuge Moisture Equivalent And The Vacuum Moisture Equivalent In Soils, Samuel Payton Halcomb

Masters Theses

"Soil is a material that has been formed through the influence of many different natural agencies. The engineer is not so much interested in how the soil was formed, but he does want to know the characteristics of the soil with respect to its use as a structural material. Therefore, the engineer is primarily interested in the physical properties of soils.

Much progress has been made during the past twenty five years in the study of Soil Mechanics, but even today there is a tendency among engineers to think of soil as just a mixture of clay, sand, silt and ...


Bauxite Versus Diaspore Clay In High Alumina (70%) Refractory Brick, Bhikhubhai Mahadeo Sedalia Jan 1951

Bauxite Versus Diaspore Clay In High Alumina (70%) Refractory Brick, Bhikhubhai Mahadeo Sedalia

Masters Theses

"The last twenty five years have seen a remarkable change in the character and types of refractories for furnace construction. Not much more than a few years ago, the production of refractories consisted almost solely of fireclay and silica shapes. A few high alumina bricks were made from Missouri diaspore clays or from bauxite and fire clays. At a later date, although little used, high alumina refractories were available which were made from alumina of a higher degree of purity, by the fusion process. Today refractories covering the entire range of composition from about 98% SiO2 to 99 1 ...


An Economy Study Of Vierendeel Trusses, Donald Lee Dean Jan 1951

An Economy Study Of Vierendeel Trusses, Donald Lee Dean

Masters Theses

"Since the introduction of the pin connected steel truss in the United States in 1847 as a truss that could be actually designed, there has been very few basic changes in the truss as a structure. True, web members have been sloped or braced in many different ways to best adapt the truss for the structural materials being used, and over the protests of many , pin connections have almost wholly given way to riveted or arc welded connections, however, the basic idea of using all members as two force members has prevailed. Concern over the existence of bending stresses in ...


A Method Of Mining The Kumtepe Lignite Deposit Of Turkey, Hilmi Dokuzoglu Jan 1951

A Method Of Mining The Kumtepe Lignite Deposit Of Turkey, Hilmi Dokuzoglu

Masters Theses

"The Agacle lignite deposit, as a potential source of fuel, near Istanbul, Turkey has been used in this study to apply the principles of strip mining operations. The details of the deposit upon which this thesis is predicated will be presented later in this paper.

The fuel requirement of the city of Istanbul with a population of nearly a million is considerably greater then can easily be met. Some of the fuel needs are accommodated by electrical energy by producer gas, by bituminous coal brought from Zonguldak (about 200 miles from the city), by charcoal, and by fuel wood. During ...


Air Flow Through Cloth Screening, Kurt Rauf Basakinci Jan 1951

Air Flow Through Cloth Screening, Kurt Rauf Basakinci

Masters Theses

"The object of this investigation is to obtain an expression whereby flow of air through woven cloth can be predicted with a reasonable degree of accuracy, in terms of the pressure drop across the screen, the density, the viscosity of the air flowing; these latter properties being functions of the pressure and temperature of the air.

The development of an expression from which to predict the relationship between the air flow through a screen and the pressure drop across it without resort to experimental procedure seems to the author to be worthwhile undertaking.

The chief aim of this investigation was ...


A Visual Investigation Of The Appearance Of Turbulence In Annular Spaces., Thomas Anderson Feazel Jan 1951

A Visual Investigation Of The Appearance Of Turbulence In Annular Spaces., Thomas Anderson Feazel

LSU Historical Dissertations and Theses

No abstract provided.


A Survey Of Acidity In Drainage Waters And The Condition Of Highway Drainage Installations, James H. Havens, James L. Young Jr., Harvey J. Field Jr. Dec 1950

A Survey Of Acidity In Drainage Waters And The Condition Of Highway Drainage Installations, James H. Havens, James L. Young Jr., Harvey J. Field Jr.

Kentucky Transportation Center Research Report

Every creek gulley and raw interrupted by roadway fills and embankments must be provided with an adequate drainage conduit under the pavement. If the natural drainage is impeded or the conduit is not functioning properly, impounded water over-runs the pavement, seeps through the fill, and eventually disintegrates the section or reduces its stability. The topography in Kentucky, through varied sectionally, requires on the average, one cross-drain for every thousand feet of roadway. Obviously, these drainage structures are of considerable economic importance in the highway program, not only from the standpoint of initial construction costs, but also from consideration of the ...


Measurement Of Surface Irregularities And Riding Qualities Of High Type Bituminous Pavements, Harvey J. Field Jr. Dec 1950

Measurement Of Surface Irregularities And Riding Qualities Of High Type Bituminous Pavements, Harvey J. Field Jr.

Kentucky Transportation Center Research Report

Studies of riding qualities as determined by irregularities in high type bituminous pavements were first treated in Report No. 1 on this subject in December, 1949. At that time interest was centered as much on specifications as on the causes, the thought being that specifications did not provide satisfactory tolerances to produce surfaces with good riding qualities. Specifically, tolerances over relatively short distances longitudinally were though to be at fault.

It was found early in that work that variations in the lateral direction were causing considerable roughness but since longitudinal variations were being studied primarily, no actual measurements were made ...


Electrical Analogue Computer For The Heat Pump, James Edward Goff Dec 1950

Electrical Analogue Computer For The Heat Pump, James Edward Goff

Masters Theses

(Taken from the Summary)

Because of the complex behavior of a cylindrical heat source-sink under intermittent operating conditions, analysis by analytical means is very difficult. Therefore an electrical analogy computer consisting of a distributed resistance capacitance model was designed and built. It was shown analytically that the behavior of this computer model was the same as that of the heat system. That the model was a true analogy is verified by the fact that data obtained from this model could be used to check certain heat flow problems previously solved by analytical means. Data were obtained for a cylindrical heat ...


Test 454: Dodge Power Wagon T137 Nov 1950

Test 454: Dodge Power Wagon T137

Nebraska Tractor Tests

No abstract provided.


Test 454: Dodge Power Wagon T137, Tractor Museum Nov 1950

Test 454: Dodge Power Wagon T137, Tractor Museum

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary. All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University. Unless otherwise noted, each tractor was apparently in good condition at the end of the testing ...


Four Papers On The Performance Of Thin Walled Steel Structures, George Winter, Warner Lansing, R. B. Mccalley Jr. Nov 1950

Four Papers On The Performance Of Thin Walled Steel Structures, George Winter, Warner Lansing, R. B. Mccalley Jr.

Center for Cold-Formed Steel Structures Library

“The investigations reported in the four papers were carried out under the auspices of the Engineering Experiment Station of Cornell University, Dean S. C. Hollister, Director, and in the School of Civil Engineering, Professor W. L. Malcolm, deceased, and Professor N. A. Christensen, Directors.

They are part of, or related to, an extensive investigation of thin-walled steel structures sponsored jointly by the American Iron and Steel Institute and Cornell University, of which Professor George Winter, Head, Department of Structural Engineering, is in active charge. On the part of the Steel Institute the work is directed by the technical subcommittee of ...


Special Text, St 55-30-1, Transportation Intelligence, November 1950, Robert Bolin , Depositor Nov 1950

Special Text, St 55-30-1, Transportation Intelligence, November 1950, Robert Bolin , Depositor

DOD Military Intelligence

This is a textbook used at the Army Transportation School run by the Transportation Corps. In the 1950s, military schools related to one of the Army Technical Services were run by that service.

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 the Army, managed the careers of officers in a particular branch, trained specialists, and organized and trained special purpose ...


Test 453: Allis-Chalmers Ca Oct 1950

Test 453: Allis-Chalmers Ca

Nebraska Tractor Tests

No abstract provided.


Test 452: Massey-Harris 55 Diesel Oct 1950

Test 452: Massey-Harris 55 Diesel

Nebraska Tractor Tests

No abstract provided.


News Bulletin - October-November, 1950, Civil Aviation Medical Association Oct 1950

News Bulletin - October-November, 1950, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A three page newsletter of the Airline Medical Examiners Association which was published on an irregular basis from 1950-1957. The newsletter provided news about civil aviation medicine and information related to the organization.


A Hospital Plan For The Hillsborough-Pinellas Area Florida, James A. Hamilton And Associates Oct 1950

A Hospital Plan For The Hillsborough-Pinellas Area Florida, James A. Hamilton And Associates

City and Regional Planning—Florida

A Study of the Area's Hospital Needs and a Proposed Program of Development October, 1950


Test 451: Oliver 99 Sep 1950

Test 451: Oliver 99

Nebraska Tractor Tests

No abstract provided.


Test 451: Oliver 99 Sep 1950

Test 451: Oliver 99

Nebraska Tractor Tests

No abstract provided.


Test 450: Oliver Row Crop 88 Diesel Sep 1950

Test 450: Oliver Row Crop 88 Diesel

Nebraska Tractor Tests

No abstract provided.


Test 449: Choremaster B Sep 1950

Test 449: Choremaster B

Nebraska Tractor Tests

No abstract provided.


B.P.R. Project On Correlation Of Truck Traffic And Pavement Conditions, Kentucky Highway Materials Research Laboratory Sep 1950

B.P.R. Project On Correlation Of Truck Traffic And Pavement Conditions, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

Locations for the Test Sections within the Control Sections and as close as possible to the Loadometer Stations established by the Division of Planning have been selected and are described in this report. With but one or two exceptions, there is reasonable certainty that these sections of pavement can be kept in service without major changes for a period of five years. However, there are repairs that should be made on the pavements in two of the sections in order to prevent rapid deterioration that is likely to occur if these are not corrected at the beginning of the study.


An Instrument For Internal Standard Flame Photometry And Its Application To The Determination Of Calcium In The Rare Earths, Robert H. Heidel, Velmer A. Fassel Jul 1950

An Instrument For Internal Standard Flame Photometry And Its Application To The Determination Of Calcium In The Rare Earths, Robert H. Heidel, Velmer A. Fassel

Ames Laboratory ISC Technical Reports

Details are given for simple modifications of a laboratory monochromator so that selected internal standard line pairs from flame spectra may be isolated and measured simultaneoualy with a multiplier phototube differential photometer. The basic design is applicable to most spectrometers or spectrographs. An atomizing system with provisions for sample recycling and recovery is also described. This equipment has been applied to the determination of calcium in the rare earths in the concentration range of 0.025 to 2.5%. Average deviation for a series of repeated determinations at various concentrations is about plus or minus 1.5%.


Test 448: John Deere Mc, Tractor Test Museum Jul 1950

Test 448: John Deere Mc, Tractor Test Museum

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere MC TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS ...


Micro-Pipette Remote Control, J. Weber Jr., E. Dewell Jul 1950

Micro-Pipette Remote Control, J. Weber Jr., E. Dewell

Ames Laboratory ISC Technical Reports

A micro-pipette remote control mechanism was developed to satisfy the need for handling small quantities of extremely radioactive materials. The sampling had to be done with the complete protection of the operator by means of proper shielding. Quantities as small as 5 lambda were handled and had to be delivered with the assurance that accuracy of measurement was maintained. Ease of operation was also an element considered in the production of this mechanism.


News Bulletin - July-August, 1950, Civil Aviation Medical Association Jul 1950

News Bulletin - July-August, 1950, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A three page newsletter of the Airline Medical Examiners Association which was published on an irregular basis from 1950-1957. This organization was a predecessor of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.


A Guide To The Collection Of Technical Intelligence, Part I, July 1950, Department Of The Army, Assistant Chief Of Staff, Robert Bolin , Depositor Jul 1950

A Guide To The Collection Of Technical Intelligence, Part I, July 1950, Department Of The Army, Assistant Chief Of Staff, Robert Bolin , Depositor

DOD Military Intelligence

This is a detailed, well-illustrated guide showing the range of weapons and equipment army technical intelligence was interested in, including:

  • Armored vehicles
  • Artillery
  • Infantry small arms
  • Mortars, antitank weapons, and grenades
  • Mines, booby traps, and demolitions
  • Ammunition
  • Artillery rockets and rocket launchers

Notable lapses in this booklet are:

(a) Lack of guidance for using the booklet and

(b) The lack of mention of:

  • Radio and electronic equipment
  • Chemical, biological, and radiological warfare equipment
  • Bridge and stream-crossing equipment
  • Construction equipment
  • Trucks and other transportation equipment
  • Quartermaster type equipment
  • Specialized equipment for Arctic warfare.

When this booklet was published, the technical intelligence ...