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Cellulose Pellets, John J. O'Neill Jr. Jan 1951

Cellulose Pellets, John J. O'Neill Jr.

Professional Degree Theses

"This thesis describes the development of a new process for the manufacture of spherical particles of cellulose, regenerated from cellulose zanthate.

An electric equipment manufacturing company advised the author’s company that it had developed a device that required uniform spheres of regenerated cellulose having a diameter of about 75 to 100 mils. This company reported that it had developed a process for the manufacture of the cellulose particles but that the spheres produced by the process were not uniformly spherical. The equipment manufacturer considered that the functioning of the new device could be improved if the cellulose particles could be …


Precise Lattice Parameter Determinations Of Diamond Silicon And Germanium By The Asymmetric Method, Esrefettin Zeki Aka Jan 1951

Precise Lattice Parameter Determinations Of Diamond Silicon And Germanium By The Asymmetric Method, Esrefettin Zeki Aka

Doctoral Dissertations

"The construction of the apparatus for production of powder patterns at a definite temperature and the technique for evaluation of x-ray powder patterns by the asymmetric method are described in detail, and the mode of error elimination is discussed.

A new scanning device is designed for use in x-ray diffraction work.

A modified method is described for the determination of densities of solids, which eliminates some of the difficulties interfering with other similar methods thus far proposed. Formulae are derived for the calculation of density as well as for reduction of density at a desired temperature.

The following conclusion are …


An Experimental Evaluation Of Explosives In Blasting Limestone And Granite, Harve Preston Nelson Jan 1951

An Experimental Evaluation Of Explosives In Blasting Limestone And Granite, Harve Preston Nelson

Doctoral Dissertations

"The purpose of this study was the evaluation of military and commercial explosives. A standardized index of effectiveness was used as the basis of comparison.

Testing was conducted at the Experimental Mine of Missouri School of Mines and Metallurgy at Rolla, Missouri, and at Graniteville, Missouri. At the school mine, 16 drift rounds, 8 slab rounds and 70 quarry tests were made in the dolomitic limestone. This rock, known locally as the Quarry Ledge of the Jefferson City formation, is of Ordovician Age"--Abstract, page ii.


The Completion, Adjustment, And Operation Of A Grazing Incidence Vacuum Ultraviolet Spectrograph, William Clinton Johnson-Chamberlain Jan 1951

The Completion, Adjustment, And Operation Of A Grazing Incidence Vacuum Ultraviolet Spectrograph, William Clinton Johnson-Chamberlain

Masters Theses

"Most gases, and particularly oxygen and nitrogen, are nearly opaque to radiation in the region from about 1800 Å downward to about 2 Å and hence, for spectroscopic work in this region, the removal of these gases is mandatory. Popular usage generally refers to the range mentioned above as the vacuum ultraviolet. That there remains much experimental work to be done in the vacuum ultraviolet has been pointed out by Boyce in his exhaustive survey of vacuum ultraviolet spectroscopy. In order to fill in some of these gaps, Mr. L. H. Chapin, in the, spring of 1950, undertook the construction …


The Effect Of Back Pressure Created By A Venturi Tube On Power Output And Efficiency Of An Internal Combustion Engine, James J. Trace Jan 1951

The Effect Of Back Pressure Created By A Venturi Tube On Power Output And Efficiency Of An Internal Combustion Engine, James J. Trace

Masters Theses

"The exhaust pressure against which an engine works affects the amount of pumping losses, the volumetric efficiency and the rate of advance of the flame front during the combustion process.

When the back pressure is decreased to the same pressure as the intake pressure, the amount of negative work done during the exhaust-intake process approaches the positive work done during the process. It can be seen from a PV diagram that it is possible to make this negative work less than the positive work and gain work during the process.

Because of the "15 to 30 degrees” of intake valve …


Uses And Advantages Of Short Period Delay Blasting Systems In Mining And Quarrying, Irving C. Falk Jan 1951

Uses And Advantages Of Short Period Delay Blasting Systems In Mining And Quarrying, Irving C. Falk

Masters Theses

"One of the most recent developments in blasting practice is that of applying the principle of short period delay electric blasting. In this type of electric blasting, instead or having all holes fire at one time, each hole or group of holes is a shot in itself. To provide a short period delay, of a few thousandths of a second, between each hole or group of holes, either millisecond (split-second) delay electric blasting caps or a suitable delayed action blasting switch may be used.

Short period delay electric blasting systems were originally developed for use by quarries in or near …


The Polarographic Determination Of Germanium, Herbert L. Bowkley Jan 1951

The Polarographic Determination Of Germanium, Herbert L. Bowkley

Masters Theses

"The purpose of this investigation was to study the polarographic behavior of germanium in various aqueous solutions. In addition to the simple polarographic behavior of germanium some attention was given to the applications or polarography for the development of an anlytical [sic] procedure for its quantitative determination in zinc ore concentrates and spelter fume materials"--Introduction, page 1.


Investigation Of Stress And Crack Distribution In Concrete Slabs Containing Welded Wire Reinforcement, Joseph H. Senne Jan 1951

Investigation Of Stress And Crack Distribution In Concrete Slabs Containing Welded Wire Reinforcement, Joseph H. Senne

Masters Theses

"Concrete is daily becoming more important as a structural material. However, without steel reinforcement, concrete would never have attained such wide use since, being weak in tension, it must be combined with some other material to take the tension stresses and prevent the tension cracks in the concrete from opening an appreciable amount.

One type of steel reinforcement used particularly for footings, beams and columns is known as deformed bar. In this case deformations are placed on the bars at the time of rolling. These deformations act as mechanical anchorage in preventing the bar from slipping, thus allowing it to …


Geology Of The North Half Of The Meramec Spring Quadrangle, Missouri, Harold Edward Mueller Jan 1951

Geology Of The North Half Of The Meramec Spring Quadrangle, Missouri, Harold Edward Mueller

Masters Theses

"The Ozark region is visited by many persons each year, and one of its popular tourist attractions is Meramec Spring. In recent years, with the advent of better roads and swifter means of transportation, visitors are coming to this beautiful spring in increasing numbers. For those who are geologists, this work will serve as a handy guide; for those who are laymen, this work may give a better understanding of the geologic events which have made this part of the Ozarks a place of scenic beauty. Mapping of the Meramec Spring Quadrangle will complete a program of geologic mapping of …


Geology And Mineralization Of The Jefferson Mine, Hardin County, Illinois, Robert Joe Cronk Jan 1951

Geology And Mineralization Of The Jefferson Mine, Hardin County, Illinois, Robert Joe Cronk

Masters Theses

"Purpose of the Investigation: The geology of the Jefferson Mine was mapped to determine the relationship of the two fluorspar veins exposed on the 260-foot level to the single vein on the 200-foot level to study the mineralogy and paragenesis of the ore, and to gain any other information that would lead to a better understanding of the fluorspar deposits"--Introduction, page 1.


The Missouri Miner, December 15, 1950 Dec 1950

The Missouri Miner, December 15, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 08, 1950 Dec 1950

The Missouri Miner, December 08, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 01, 1950 Dec 1950

The Missouri Miner, December 01, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 17, 1950 Nov 1950

The Missouri Miner, November 17, 1950

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, November-December 1950, Miner Alumni Association Nov 1950

Missouri S&T Magazine, November-December 1950, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, November 10, 1950 Nov 1950

The Missouri Miner, November 10, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 03, 1950 Nov 1950

The Missouri Miner, November 03, 1950

The Missouri Miner Newspaper

No abstract provided.


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.

CCFSS Library (1939 - present)

“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 …


The Missouri Miner, October 27, 1950 Oct 1950

The Missouri Miner, October 27, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 20, 1950 Oct 1950

The Missouri Miner, October 20, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 13, 1950 Oct 1950

The Missouri Miner, October 13, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 06, 1950 Oct 1950

The Missouri Miner, October 06, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 29, 1950 Sep 1950

The Missouri Miner, September 29, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, Sept 12, 1950 Sep 1950

The Missouri Miner, Sept 12, 1950

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, September-October 1950, Miner Alumni Association Sep 1950

Missouri S&T Magazine, September-October 1950, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


Missouri S&T Magazine, July-August 1950, Miner Alumni Association Jul 1950

Missouri S&T Magazine, July-August 1950, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, May 12, 1950 May 1950

The Missouri Miner, May 12, 1950

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, May-June 1950, Miner Alumni Association May 1950

Missouri S&T Magazine, May-June 1950, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, May 05, 1950 May 1950

The Missouri Miner, May 05, 1950

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 28, 1950 Apr 1950

The Missouri Miner, April 28, 1950

The Missouri Miner Newspaper

No abstract provided.