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Articles 193501 - 193530 of 196658

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Temperature Forecasting At Logan, Utah, For The Snowmelt-Runoff Season, Clifton Johnson May 1957

Temperature Forecasting At Logan, Utah, For The Snowmelt-Runoff Season, Clifton Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis is to investigate the practicability of forecasting temperatures for the spring and summer snowmelt-runoff season. A successful temperature forecast for Logan, Utah, would be useful in studies of Logan River streamflow, as well as other related applications.

Logan, Utah, is situated in a region where the snow accumulates during the winter and early spring at high altitudes and remains until the proper sequence of meteorological events provides the thermodynamic conditions essential for melting. Snow surveys provide an index to the water available on a watershed. Temperature conditions during the melt period largely determine the available …


Test 614: Case 301 Diesel, Nebraska Tractor Test Lab Apr 1957

Test 614: Case 301 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


Test 613: Case 311 Gasoline, Nebraska Tractor Test Lab Apr 1957

Test 613: Case 311 Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: CASE 311 GASOLINE 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 TEST …


The Adaptation Of An Ore Feeder To Replace A Chute, Donald M. Forsman Apr 1957

The Adaptation Of An Ore Feeder To Replace A Chute, Donald M. Forsman

Bachelors Theses and Reports, 1928 - 1970

I believe that by installing apron ore feeders in place of chutes, spillages, manual labor, and loading time could reduced, and greater safety and the average car factor could be increased. Although an apron feeder would be a considerable investment, maintenance should be very low and the feeder would be re-usable many times.


A Binary-To-Decimal Converter, Samuel D. Stearns Apr 1957

A Binary-To-Decimal Converter, Samuel D. Stearns

Electrical and Computer Engineering ETDs

This paper describes a device which electronically converts a binary number into its decimal equivalent. Such a device might be of use in digital computers, many of which use the binary number system, and also in similar machines, such as pulse code modulated data collectors.

The binary-to-decimal converter described here was designed specifically for use in Sandia Corporation's High-Speed Digital Recording and Data Handling System, which actually uses the Gray code rather than the binary number system. However, conversion from Gray to binary (see Appendix B) is simple, and a binary-to-decimal converter seems much simpler than a Gray-to-decimal converter.


Test 610: International 350 Utility, Nebraska Tractor Test Lab Apr 1957

Test 610: International 350 Utility, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


Test 612: Mccormick Farmall 450 Gasoline, Nebraska Tractor Test Lab Apr 1957

Test 612: Mccormick Farmall 450 Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


Test 611: Mccormick Farmall 350 Gasoline, Nebraska Tractor Test Lab Apr 1957

Test 611: Mccormick Farmall 350 Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


Test 609: Mccormick Farmall 350 Diesel, Nebraska Tractor Test Lab Apr 1957

Test 609: Mccormick Farmall 350 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


Letters Between Us Army Assistant Chief Of Staff For Intelligence And The Surgeon General About Technical Service Intelligence Agencies, 1957, Robert L. Bolin , Depositor Apr 1957

Letters Between Us Army Assistant Chief Of Staff For Intelligence And The Surgeon General About Technical Service Intelligence Agencies, 1957, Robert L. Bolin , Depositor

United States Department of Defense Military Intelligence

This is two in a series of letters between the Army Assistant Chief of Staff for Intelligence (ACSI) and The Surgeon General (TSG) concerning the concentration of the Technical Service (TS) intelligence agencies at Arlington Hall Station. At that time the TS intelligence agencies were housed in 5 different temporary buildings around Washington, DC. In anticipation of the approval, ACSI stated that he had requested that 176,000 sq. ft. of office space be reserved at AHS.

ACSI proposed to concentrate the army Technical Service intelligence agencies at Arlington Hall Station (AHS). AHS was an army base located a few miles …


Test 608: Mccormick Farmall 450 Diesel, Nebraska Tractor Test Lab Apr 1957

Test 608: Mccormick Farmall 450 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


The Design, Construction, And Testing Of A Centrifugal Compressor Installation, James V. Neely Mar 1957

The Design, Construction, And Testing Of A Centrifugal Compressor Installation, James V. Neely

Mechanical Engineering ETDs

The purpose of this investigation was to design and build the equipment necessary to couple a Dodge automobile engine to an Allison aircraft engine supercharger; to assemble and instrument this instillation in such a manner that performance characteristics of the single stage centrifugal compressor could be determined; and to present and evaluate the data obtained in terms of appropriate dimensionless parameters.


Test 607: Unimog 30 Diesel, Nebraska Tractor Test Lab Mar 1957

Test 607: Unimog 30 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT 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 TEST B: The throttle …


News Bulletin - March-April, 1957, Civil Aviation Medical Association Mar 1957

News Bulletin - March-April, 1957, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A four 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.


Initial Bibliography Of Soviet Military Medicine, 1917-1950, Medical Information And Intelligence Agency, Robert Bolin , Depositor Mar 1957

Initial Bibliography Of Soviet Military Medicine, 1917-1950, Medical Information And Intelligence Agency, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a author list of more than 1000 articles about Soviet military medicine with a subject index.

This compilation is an initial listing of Soviet military articles, less specialized naval and aviation topics, from the time of the Bolshevik Revolution to the outbreak of the Korean conflict as they appeared in the Quarterly Cumulative Index, Volumes 1-11 and the Quarterly Cumulative Index Medicus, Volumes 1 - 55.

The subject headings searched are listed below and constituted 20,167 entries for this thirty three year period. 887 of these entries were of Soviet origin and comprised the publications of the 1,025 …


A Survey Inspection Of Plain Corrugated Metal Pipe Arches And Multi-Plate Metal Pipe Arches In Kentucky, Eugene M. West Mar 1957

A Survey Inspection Of Plain Corrugated Metal Pipe Arches And Multi-Plate Metal Pipe Arches In Kentucky, Eugene M. West

Kentucky Transportation Center Research Report

Past observations have indicated that rusting has been rather prevalent in the large, un-paved metal drainage structures most of which have been installed since the opening of the Kentucky Rural Secondary Program in 1949. Since all of these structures are relatively new, and since rusting in any form can be considered a threat to the life of a structure, the Chief Engineer's Office, in 1954, requested that a study be made to determine the over-all frequency possible causes, and individual seriousness of this condition.

Altogether, a total of 86 of these un-paved structures were inspected. Although it would have been …


Memo On Sandstone Specifications, James H. Havens Feb 1957

Memo On Sandstone Specifications, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.


Shaft Mucking Investigation Part 1, Jorge R. Delzo Jan 1957

Shaft Mucking Investigation Part 1, Jorge R. Delzo

Bachelors Theses and Reports, 1928 - 1970

This paper represents an attempt to explain the operation of inclined-shaft mucking, and the machines developed for this purpose. It also covers some research done for the design of a continuous shaft mucking device, which could in the future prove to be the answer to this important problem. In many small or intermediate mining operations, where this problem has been a prime headache, the added costs of shaft mucking, because of lack of speed, and versatility, might very well mean the difference between profit and collapse.


The Great Falls Zinc Plant, Donald Edward Macknight Jan 1957

The Great Falls Zinc Plant, Donald Edward Macknight

Bachelors Theses and Reports, 1928 - 1970

This paper will be confined to the processes by which zinc is recovered. In discussing the unit processes and operations, I shall first give a general view of the process and why it is necessary. Next, I shall analyze the process in terms of metallurgy and thermodynamics, showing by calculation, where necessary, certain facts that could not be suitably explained without a knowledge of the fundamental principles of extractive metallurgy.


Temperature Stabilized Transistor Direct Current Amplifier, William Lewis Metcalf Jr. Jan 1957

Temperature Stabilized Transistor Direct Current Amplifier, William Lewis Metcalf Jr.

Masters Theses

"A stable direct current transistor amplifier is difficult to design for use at elevated temperatures. The above is true since transistor parameters and bias conditions are affected by temperature. When transistors are incorporated in direct coupled amplifier circuits, these variations in parameters and bias conditions usually result in unstable operation. It is the purpose of this thesis to investigate this problem and to design a stable direct current transistor amplifier which will operate satisfactorily at elevated temperatures.

This problem is of importance as such direct current amplifier circuits are found in airborne or missile servo systems. In such systems the …


Physical Properties Of Concrete At Early Ages, Karl H. Dunn Jan 1957

Physical Properties Of Concrete At Early Ages, Karl H. Dunn

Masters Theses

"There are well over 100,000 miles of concrete pavements existing today on our United States highway system. The development of these pavements during the first half of this century has been a process of learning from construction applications and mistakes. However, the unexpected increase in traffic load has brought highway designers to experiment with relatively new types and designs of concrete pavement construction.

Some designers, in an effort to reduce temperature warping stresses, have used short slabs 10 to 15 feet in length, generally unreinforced. Another type of construction is the definitely jointed slabs, the slabs being from 20 to …


A Thermodynamic Study Of The Titanium Sulfides, Reinhard Paul Abendroth Jan 1957

A Thermodynamic Study Of The Titanium Sulfides, Reinhard Paul Abendroth

Doctoral Dissertations

"The determination of the thermodynamic properties of chemical compounds is in essence an experimental one. The purpose of this investigation was (1) to make an experimental determination of the thermodynamic properties of the titanium sulfides (2) to determine what sulfide phases are present in the titanium-sulfur system (3) to show the relationships between the various phases present"--The Problem, Statement of the Problem, page 3.


A Simplified Mathematical Method For Petroleum Property Evaluation, Charles G. Edwards Jan 1957

A Simplified Mathematical Method For Petroleum Property Evaluation, Charles G. Edwards

Masters Theses

"The economic evaluation of a petroleum reservoir involves two fundamental operations; 1) predicting future production behaviour, 2) determining the present worth or this future production. This thesis purposes to eliminate the necessity of repeated calculation which is required in performing the second operation under existing methods.

Because the first operation, that of predicting future behaviour, is necessarily an estimate, there is an apparent tendency to employ approximate methods in the determination of present worth. The evaluation method developed in this paper confines estimation to the first operation, where it rightly belongs, and treats all subsequent work with mathematical exactness.The estimation …


Determination Of Lattice Constants, And Thermal Expansion Coefficients Of Ti₂O₃ And Of Its Solid Solutions With Ti, Tatsuhiko Ejima Jan 1957

Determination Of Lattice Constants, And Thermal Expansion Coefficients Of Ti₂O₃ And Of Its Solid Solutions With Ti, Tatsuhiko Ejima

Masters Theses

"For the determination of the precise lattice constants of Ti₂O₃, it is very important to use a Ti₂O₃ as pure as possible.

Due to the formation of solid solution with titanium or oxygen, ranging from 32.5 to. 34.5% O₂ by weight in the Ti-O binary system, it is very difficult to get a pure Ti₂O₃ (33.8% O₂ by weight) in the laboratory.

To determine the precise lattice constants of pure Ti₂O₃, therefore, the extrapolation method was used.

This method computes the respective constants for pure Ti₂O₃ from the values obtained With Ti₂O₃-Ti solid solutions by extrapolation. To carry out such …


Investigation Of Plastic Deformation In Prestressed Concrete Slabs From Long Time Loading, Joe B. Roberts Jan 1957

Investigation Of Plastic Deformation In Prestressed Concrete Slabs From Long Time Loading, Joe B. Roberts

Masters Theses

"It is the purpose of this research to investigate the creep in a thin concrete slab under a long-time prestress load with the compressive load being applied to the edge of the slab through a bearing plate of small dimensions.

Seven plain concrete slabs, 3' x 4' x 4", approximately one year old, made of normal cement and approved aggregate were subjected to the following loading conditions: (1) Three slabs loaded at the center of the greater dimension with a prestress load or 20,000 pounds applied over an area of eight square inches, (2) Three slabs loaded symmetrically at six …


The Stability Of Rectangular Plates With Built-In Supports At The Edges, John Bruce Miles Jan 1957

The Stability Of Rectangular Plates With Built-In Supports At The Edges, John Bruce Miles

Masters Theses

"The purpose of this investigation is to derive an expression for the critical stress for a thin rectangular plate with compressive edge loading. The load is applied on two opposite edges with the remaining two edges built-in. (See Fig. 1) This is essentially a stability problem.

Rectangular plates with compressive edge loading and various edge restraints appear in a number of engineering structures. Bulkheads of ships could be so classified, as could certain components of fabricated beams and columns. The new supersonic B-58 bomber developed by Convair has a honeycomb wing structure dictated by heat conduction requirements. This, too, involves …


Filter Materials For Emergency Use In Diatomite Type Water Filters, Robert Wassell Mcleane Jan 1957

Filter Materials For Emergency Use In Diatomite Type Water Filters, Robert Wassell Mcleane

Masters Theses

"A completely different type of filter, using diatomaceous earth as the filter media, had been in use for many years for filtration of industrial liquids, however, the use of diatomaceous earth for water filtration purposes had been discouraged due to the rapid clogging of the filter material. "As late as 1930 it was reported that the very excellence of filtration with diatomite prevented its extensive use in water filtration except where complete elimination of bacteria and suspended matter is essential.”

Diatomaceous earth, however, seemed to exhibit the general properties the research groups were seeking; in the refined state it exhibited …


Investigation Of Length Changes In Prestressed Concrete Slabs With Outside Exposures, John Best Jan 1957

Investigation Of Length Changes In Prestressed Concrete Slabs With Outside Exposures, John Best

Masters Theses

"In general, pavements may be classed as being either rigid or flexible. The term “rigid pavement”, as commonly used in the United States, is applied only to wearing surfaces constructed of portland-cement concrete. All other types of pavements are classed as “flexible”. A pavement constructed of portland-cement concrete is assumed to possess considerable flexural strength which will permit it to act as a beam and allow it to bridge any minor irregularities which may occur in the base on which it rests, hence the term “rigid”….

In view of the experience and information gathered in over 50 years of road …


The Correlation Of Kelly Ball Penetration Readings With Standard Slump Cone Readings For Concrete Made From Missouri Aggregates, James Claude Rives Jan 1957

The Correlation Of Kelly Ball Penetration Readings With Standard Slump Cone Readings For Concrete Made From Missouri Aggregates, James Claude Rives

Masters Theses

"The ASTM standard slump test as set forth in ASTM Designation: C143-52, has been used for many years in concrete construction tor measuring the consistency of plastic concrete. Slump tests taken in the laboratory are considered reasonably accurate; however, there are numerous disadvantages in performing these tests in the field; the most serious being the time required to make a test on pavement work. The standard slump cone method is also subject to personal differences in sampling, rigidity and smoothness of base, dampening the apparatus, filling the cone, rodding, raising the cone, freedom from jarring and selection of point to …


Investigation Of Length Changes And Warping In Thin Prestressed Pavements, Wilbur D. Stites Jan 1957

Investigation Of Length Changes And Warping In Thin Prestressed Pavements, Wilbur D. Stites

Masters Theses

"The present growth of the American highway system presents a staggering problem to the highway designer. The increased and urgent demand for more highways, capable of accommodating traffic loads that are constantly increasing, combined with the increased construction cost of highways, behooves the present day highway designer to envision future highway problems that will arise. These future problems are numerous and complex; however, it seems the primary problem is the selection of a surfacing material that will withstand projected traffic loads with a maximum economy of construction and future maintenance costs. Concrete at the present time is the most satisfactory …