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Water Injection In The Modern Automotive Spark Ignition Engine, Leonard Carl Nelson Jan 1949

Water Injection In The Modern Automotive Spark Ignition Engine, Leonard Carl Nelson

Masters Theses

"The injection of water in the spark ignition engine is not new. The effect of humidity in the air on the performance of the spark ignition engine probably initiated the early investigations. The water vapor in the inlet air decreases the speed of the flame front and necessitates spark advance to assure maximum power and maximum efficiency. Water particles in the air evaporate during the compression and combustion of the inducted charge and decrease the tendency of the engine to detonate. These effects are very evident when operating the spark ignition engine in a moist atmosphere. Water is not a …


Reduction Of Zinc Sulphide In A Vacuum, Tien-Shih Liu Jan 1949

Reduction Of Zinc Sulphide In A Vacuum, Tien-Shih Liu

Masters Theses

"The successful large scale commercial application of high vacuum for high temperature metallurgical operations is a comparatively new development. The use of Pidgeon and the carbothermic processes for the production of magnesium during the war forced a perfection of both equipments and techniques for high vacuum operations. This opens broadly the way for a great expansion of vacuum metallurgy. Vacuum operation is thus no more a laboratory method - it is a kind of industrial practice. Many metallurgical operations, which cannot be carried out by ordinary processes, are made feasible when conducted in a reduced pressure. typical examples are the …


The Lithium Tungsten Bronzes, Shun Sheng Hsu Jan 1949

The Lithium Tungsten Bronzes, Shun Sheng Hsu

Masters Theses

"The 'tungsten bronzes are a series of anionic substitutional solid solutions of alkali or alkaline earth metal metatungstates and tungstic oxide. They are neither alloys or intermetallic compounds, the term "tungsten bronzes" was adopted because of their remarkable metallic properties -- e.g., high electrical conductivity, metallic luster on the crystal, and high specific gravity. Also owing to their intense and vivid colors and chemical inactivity it was possible to use them in the paint industry as a substitute for the so-called "bronze powders", the latter term is applied to the finely divided metal powders, such as aluminum, copper, brass, and …


The Effect Of Silicate Ion And Hydroxyl Ion On The Abstraction Of Potassium Ethyl Xanthate By Galena, Pao-Zung Wu Jan 1949

The Effect Of Silicate Ion And Hydroxyl Ion On The Abstraction Of Potassium Ethyl Xanthate By Galena, Pao-Zung Wu

Masters Theses

"The purpose of this research was to investigate the effect of the silicate ion and the hydroxyl ion on the removal of potassium ethyl xanthate by galena; since the former ion is encountered during flotation owing to dissolution of silicates, and also sodium silicate being often used to disperse gangue minerals, and the latter one is encountered during floating in an alkaline circuit"--Introduction, page 1.


A Preliminary Investigation Of The Titanium-Copper Equilibrium System, August Robert Savu Jan 1949

A Preliminary Investigation Of The Titanium-Copper Equilibrium System, August Robert Savu

Masters Theses

"The element titanium has a high degree of chemical activity at room temperature when in a finely divided condition. In the massive state this activity is only exhibited at high temperatures. The powdered metal is highly pyrophoric. Titanium forms quite stable sulphides and carbides, although these are subject to oxidation at high temperatures. It also form nitrides. Titanium being a transitional element forms hydrides with hydrogen which are stable at ordinary temperatures, but which dissociate at red heat liberating the hydrogen and leaving the metallic titanium in a very active state. Alloys are formed with such metals as aluminum, manganese, …


Barium-Tin Alloys, James Richard Whanger Jan 1949

Barium-Tin Alloys, James Richard Whanger

Masters Theses

"The author attempted to produce alloys of barium and tin using metallic barium and barium hydride. Also, an attempt was made to study the phase diagram using thermal analysis and X-ray investigation"--Introduction, page 2


Plateau Characteristics Of Geiger Counters With Respect To Different Gas Mixtures And Pressures, Ralph E. Lee Jan 1949

Plateau Characteristics Of Geiger Counters With Respect To Different Gas Mixtures And Pressures, Ralph E. Lee

Masters Theses

"The section of a Geiger Counter is characterized by the so-called plateau curve. In this curve the counting rate of a given counter is plotted as a function of voltage, when the gas which it contains and the radiation to which it is exposed are both kept the same. These curves are characterized by a rapid rise beyond the starting potential (potential at which the counter begins to respond) until a more or less flat region is reached. This flat region is called the plateau of the curve. The slope and width of the plateau curve are dependent upon the …


The Effect Of The Convection Coefficient On The Temperature Amplitude In Periodic Heat Flow, Gordon L. Scofield Jan 1949

The Effect Of The Convection Coefficient On The Temperature Amplitude In Periodic Heat Flow, Gordon L. Scofield

Masters Theses

"The problem to be investigated in this thesis is that of periodic heat flow in a semi-infinite solid. Periodic flow means that heat flow is a continuous function of time and repeats itself at regular intervals. A semi-infinite solid is one which is bounded by one and only one plane. This subject has received considerable attention in the field of soil temperatures, both at the surface of the earth and at various depths. The surface of the earth is subjected to temperature changes which are nearly periodic. These temperature changes take place both daily and annually. A knowledge of these …


Effect Of Transition Elements On The Transmittance Of B₂O₃ Glasses, Chandubhai Gordhanbhai Amin Jan 1949

Effect Of Transition Elements On The Transmittance Of B₂O₃ Glasses, Chandubhai Gordhanbhai Amin

Masters Theses

"For many years, boric oxide has been used extensively as a minor constituents in silicate glasses, because of its beneficial influence on their physical properties as well as on glass melting processes; but when used without silica or in too large proportion, the resulting glasses lack chemical durability...Because of its detrimental effect as a major constituent in silicate glasses or in borate glasses, very little work has been done on borate glasses, especially on colored borate glasses...The purpose of this investigation is to find out the effect of the transition elements on the transmission curves of the colored borate glasses"--Introduction, …


The Application Of The Relaxation Method To The Solution Of Problems Involving The Flow Of Gases Through Porous Media, Ralph Davis Jan 1949

The Application Of The Relaxation Method To The Solution Of Problems Involving The Flow Of Gases Through Porous Media, Ralph Davis

Masters Theses

"The purpose of this investigation is to determine the feasibility of applying the relaxation method of mathematical analysis to the solution of problems involving the flow of gases through porous media. The relaxation method was first applied to two-dimensional problems by Christopherson and Southwell, who applied it to problems in stress analysis. It was later applied to steady-state heat conduction problems by H. W. Emmons and to steady-state flow of incompressible liquids by A. A. Zwierschowski. The solutions of problems involving the flow of gases through porous media is difficult for all but the simplest boundary conditions, and impractical for …


The Rollamo 1949, The University Of Missouri School Of Mines And Metallurgy Jan 1949

The Rollamo 1949, The University Of Missouri School Of Mines And Metallurgy

Yearbooks

No abstract provided.


Research Investigation Of Seepage Control For Dams And Levees, Robert Raymond Brookshire Jan 1949

Research Investigation Of Seepage Control For Dams And Levees, Robert Raymond Brookshire

Professional Degree Theses

"The problems of a century old levee system have provided excellent research for the Corp of Engineers and others in the design and construction of earth dams for flood control, navigation and multi-purpose projects. A special problem on which valuable knowledge has been gained is that of seepage control. The experiences obtained in recent years have been supplemented by theoretical developments in the field of soil mechanics, but it is believed that considerable information will be gained on seepage control from further investigation and experience.

The safety factor to prevent failure from seepage is believed to be the most critical …


A Correlation Of Formulas For The Flow Of Fluids In Pipes, John Gorman Duba Jan 1949

A Correlation Of Formulas For The Flow Of Fluids In Pipes, John Gorman Duba

Masters Theses

"At present there exist two quite distinct fields in fluid flow in pipes, the one in water supply and the other in the petroleum industry. It is the purpose of this paper to discuss the various pipeline flow formulas as used in both fields and to correlate the exponential type formula which is much used in practice with the Nikuradse curves obtained in the laboratory"--A Brief Historical Review, page 5.


Application Of Electrical Prospecting Methods To Two Types Of Sulphide Ore Deposits, Robert Van Nostrand Jan 1949

Application Of Electrical Prospecting Methods To Two Types Of Sulphide Ore Deposits, Robert Van Nostrand

Masters Theses

"Although certain types of sulphide ores, especially those near the surface of the earth, lend themselves very well to electrical prospecting methods, quite the opposite is true of the extensive deposits of the type found in the Mississippi River Valley. The purpose of this investigation was to discover additional facts concerning two distinct types of sulphide ores, and therefrom to develop a new technique which would be applicable to prospecting for the lead and zinc deposits found in the Mississippi Valley"--Introduction, page 1.


The Missouri Miner, December 17, 1948 Dec 1948

The Missouri Miner, December 17, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 03, 1948 Dec 1948

The Missouri Miner, December 03, 1948

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, November-December 1948, Miner Alumni Association Nov 1948

Missouri S&T Magazine, November-December 1948, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, October 29, 1948 Oct 1948

The Missouri Miner, October 29, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 22, 1948 Oct 1948

The Missouri Miner, October 22, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 08, 1948 Oct 1948

The Missouri Miner, October 08, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 01, 1948 Oct 1948

The Missouri Miner, October 01, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 17, 1948 Sep 1948

The Missouri Miner, September 17, 1948

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, May-June 1948, Miner Alumni Association May 1948

Missouri S&T Magazine, May-June 1948, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, April 30, 1948 Apr 1948

The Missouri Miner, April 30, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 16, 1948 Apr 1948

The Missouri Miner, April 16, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 09, 1948 Apr 1948

The Missouri Miner, April 09, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 02, 1948 Apr 1948

The Missouri Miner, April 02, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, March 17, 1948 Mar 1948

The Missouri Miner, March 17, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, March 10, 1948 Mar 1948

The Missouri Miner, March 10, 1948

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, February 11, 1948 Feb 1948

The Missouri Miner, February 11, 1948

The Missouri Miner Newspaper

No abstract provided.