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

Digital Commons Network

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

Missouri University of Science and Technology

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 32851 - 32880 of 33676

Full-Text Articles in Entire DC Network

The Chloride Volatilization Of Silver And Lead From Zinc Concentrate, Edward Phillip Barrett Jan 1924

The Chloride Volatilization Of Silver And Lead From Zinc Concentrate, Edward Phillip Barrett

Professional Degree Theses

"The Yellow Pine mine at Goodsprings, in southwestern Nevada, yields an ore nearly free from gangue constituents. The ore as mined contains 8 to 12 per cent lead, 8 to 12 ounces silver, and 30 to 35 per cent zinc, and is milled in a gravity concentration plant where separation of the lead and zinc is made. The ore is nearly all carbonate, except a small amount of galena, and the lead concentrates contain considerable zinc; the zinc concentrates contain lead and silver in quantities ranging from 3 to 7 pr cent and 3 to 7 ounces, respectively, The lead …


An Investigation Of The Possibility Of A Missouri Furnace Obtaining An Iron Ore Supply From The State, Donald Foster Updike Jan 1924

An Investigation Of The Possibility Of A Missouri Furnace Obtaining An Iron Ore Supply From The State, Donald Foster Updike

Professional Degree Theses

"The material for this thesis and the observations and conclusions drawn are all the result of the writers connection with a group who were engaged by Brown Brothers to determine the possibility of supplying the St. Louis Coke and Chemical Company with iron ore from the state. The original idea was to try to obtain the Coke Companies complete requirement from the state. While the results are in a sense negative, the company appreciated the fact that, in a case of this kind, even negative results have a value"--Introduction, page 4.


The Outdoor Substation, Israel Herrick Lovett Jan 1924

The Outdoor Substation, Israel Herrick Lovett

Professional Degree Theses

"The Outdoor Substation, as an essential part of a high voltage distribution system, has been largely developed during the past 12 years. The New England Power Company was one of the pioneers in this development, their substation at Millbury, Massachusetts, being one of the first outdoor substations in the northern part of the country. During the five years' experience with this company, the writer of this thesis, in his position of Chief Electrical Designer, was partly responsible for the design of all substations constructed by the company during this period, from 1916 to 1921...This thesis is an account of the …


Engineering Practice In The Tri-State District, Richard John Stroup Jan 1924

Engineering Practice In The Tri-State District, Richard John Stroup

Professional Degree Theses

"Mining operations of the zinc and lead deposits of Southwest Missouri, Southeast Kansas and Northeast Oklahoma forming what is known as the Tri-State District are peculiar in many ways. The 'old country' with its shallow gougings and more or less crude methods has practically passed; methods have been improved with the increased size of operations, and the Engineering Department has grown into an indispensable link in the mining operations of practically all the operating companies. But traditions often die hard. Many phases of mining operations are peculiar to this District alone, and likewise engineering practice has its peculiarities"--page 1.


Accident Prevention In Cement Plants, Edward Rees Abbott Jan 1924

Accident Prevention In Cement Plants, Edward Rees Abbott

Bachelors Theses

"The cement industry as a whole took up accident prevention work along with the pioneers. With the organization of the Portland Cement Association, a Bureau of Accident Prevention was formed. This Accident Prevention Bureau, by sending out literature, holding competitions, collecting and tabulating results of accidents collected from every cement manufacturer and affiliating with National Safety Council as the Cement Section, has made rapid strides each year, until today it is doubtful if any other branch of manufacturers can show more improvement in accident records than the cement industry. In spite of their marked improvements each year, there were 47 …


A Discussion Of Electric Welding, Peter Fergus Thompson Jan 1924

A Discussion Of Electric Welding, Peter Fergus Thompson

Bachelors Theses

"This thesis deals with the different processes, methods and uses of Electric Arc Welding; and tests made in the laboratory with Direct and Alternating Current"--page iii.


Transmission Of Electrical Energy At 220,000 Volts, Robert Wilhelm Ahlquist Jan 1924

Transmission Of Electrical Energy At 220,000 Volts, Robert Wilhelm Ahlquist

Bachelors Theses

"A. E. Silver at the Annual Convention of the A.I.E.E. in 1919 gives some of the reasons why 220,000 Volt transmission is a logical and feasible commercial proposition. He also gives some of the main features of the undertaking...Owing to the great scope of this paper it has been thought necessary to generalize on the discussion of the first two topics and to treat the next two in more detail"--Statement of Scope of this Paper, pages 3-4.


Economic Geology Of Northern Angola, Artileus Vosteen Eulich Jan 1924

Economic Geology Of Northern Angola, Artileus Vosteen Eulich

Professional Degree Theses

"Most of the mineral deposits have been known to exist for over a generation but efforts to mine them usually met with failure. The most signal discovery, that of diamonds, was made only in recent years. They are the only substance coming under the category of mineral which are being exploited on a large scale. Energetic efforts are being made to find petroleum in commercial quantities. There are still vast areas practically unexplored which if thoroughly prospected might lead to more discoveries. It is difficulty, however, for one who has prospected for two years in Angola without any particular success …


The Gas Fields Of North Webster Parish, Louisiana, Joseph Maple Wilson Jan 1924

The Gas Fields Of North Webster Parish, Louisiana, Joseph Maple Wilson

Professional Degree Theses

"The gas fields of north Webster Parish, Louisiana, as discussed in this paper, are embraced in an area 9 townships or 324 square miles in extent including Township 21 North, Ranges 9, 10, and 11 West; Township 22 North, Ranges 9, 10, and 11 West; and Township 23 North, Ranges 9, 10, and 11 West in north Webster Parish and extreme northeast Bossier Parish, Louisiana. The area is outlined in red on the accompanying map, on Page 2, which shows the relation of the three gas fields in the area to the other oil and gas fields of north Louisiana, …


The Analysis Of Stresses And Design Of Multiple-Arch Dam, Guy Robert Scott Jan 1924

The Analysis Of Stresses And Design Of Multiple-Arch Dam, Guy Robert Scott

Bachelors Theses

"The so-termed: "Multiple", or "Scallop-Arched" dam, as its name implies, is one composed of a series of arches, either semi-circular or segmental in plan. These arches were first vertical but were later inclined downstream, when the engineers recognized the value of the weight of water in increasing the resisting moment. The thrust of these arches, due to the water pressure and the weight of the arch itself, is transmitted directly to the buttresses. There are numerous advantages to this type of dam over that of the gravity type"--Introduction, page 1.


The Rollamo 1924, The University Of Missouri School Of Mines And Metallurgy Jan 1924

The Rollamo 1924, The University Of Missouri School Of Mines And Metallurgy

Yearbooks

No abstract provided.


Hydro-Electric Treatment Of Joplin-Miami Zinc Concentrate, David Francis Walsh Jan 1924

Hydro-Electric Treatment Of Joplin-Miami Zinc Concentrate, David Francis Walsh

Masters Theses

"The Electrolytic Process is a process capable of almost unlimited mechanicalization. For obvious reasons it is more economic to treat high grade concentrates; yet, the extremely high grade concentrates are not essential. The Electrolytic Process can treat economically concentrates as low as 30.% zinc under certain conditions. It is significant that as the grade of concentrates offered for treatment is lowered, the treatment cost per ton of concentrates decreases for the Electrolytic Process; whereas, it will increase, as previously stated, for the Retort Process. It is seen then that the position of the Electrolytic Process is strengthened where lower grade …


Lactose Fermenting Bacteria In The Water Supplies Of The Rolla Quadrangle, Joe Beaty Butler Jan 1924

Lactose Fermenting Bacteria In The Water Supplies Of The Rolla Quadrangle, Joe Beaty Butler

Masters Theses

"I. Preliminary investigations. This includes the securing of 139 water samples from water sources in the Rolla Quadrangle, and inoculating 1cc samples from these into Dunham's Lactose tubes and thereby getting lactose gas production checks on the field samples. II. Confirmatory tests. This consisted in the isolation of lactose fermenters on Eosin-Methylene Blue Agar and checking of the cultures back through the lactose and then through dulcitel and saccharose so as to complete Jackson's Classification. 106 cultures were classified in this manner. III. Running through a complete set of tests of pure cultures, so as to completely (as possible) identify …


The Solubilities Of Certain Inorganic Salts In Anhydrous Normal Alcohols, William Orval Keeling Jan 1924

The Solubilities Of Certain Inorganic Salts In Anhydrous Normal Alcohols, William Orval Keeling

Masters Theses

"An examination of the literature shows that extensive studies have been made of the solubilities of inorganic salts in aqueous, normal alcohols, but that little has been done in determining the solubilities in anhydrous alcohols. Northing was found of a systematic study of the solubilities of NaCl, KCl, NaN0₃ and KNO₃ in the lower alcohols over a fairly wide range of temperature. The author has made a study of the solubilities of the above mentioned salts in lower anhydrous normal alcohols at the temperatures 20°C, 25°C, 30°C and 40°C"--Introduction, page 1.


Conductivity And Ionization Of Certain Salts In Absolute Alcohol, Armin Brene Jewell Jan 1924

Conductivity And Ionization Of Certain Salts In Absolute Alcohol, Armin Brene Jewell

Masters Theses

"One of the most striking observations one makes in connection with the study of the conductivities of alcoholic solutions is their great similiarity [sic] to those of aqueous solutions with the exception that the values of the concentrations are very much smaller. The differences are rather of degree than of kind. It will be noted that as the temperature is increased the molecular conductivity increases and the fraction of salt decreases which is what would be expected by analogy"--Discussion, page 43.


The Reduction Of Zinc Oxide By Carbon, George August Zeller Jan 1924

The Reduction Of Zinc Oxide By Carbon, George August Zeller

Masters Theses

"In spite of the fact that the reduction of zinc oxide by carbon is the fundamental reaction upon which the pyrometallurgy of zinc is based, there is a decided lack of accurate knowledge concerning the mechanism of the reaction, the temperature at which it begins, and the effect of various factors upon the rate at which it takes place"--Introduction, page 1.


On Plain Carbon Steel, Walter Edward Remmers Jan 1924

On Plain Carbon Steel, Walter Edward Remmers

Masters Theses

"In 1921, an investigation was carried on by Messrs. Howe, Foley and Winlock, under the auspices of the National Research Council, the results of which were published under the title of - "Influence of Temperature, Time and Rate of Cooling on Physical Properties of Carbon Steel," by the American Institute of Mining and Metallurgical Engineers, February, 1923. These results showed that all physical properties of a 0.34 C. percent steel are improved by increasing the rate of cooling from temperatures above the critical range up to a certain rapidity beyond which, there is a gain in strength at the expense …


The Missouri Miner, December 17, 1923 Dec 1923

The Missouri Miner, December 17, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 10, 1923 Dec 1923

The Missouri Miner, December 10, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, December 03, 1923 Dec 1923

The Missouri Miner, December 03, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 26, 1923 Nov 1923

The Missouri Miner, November 26, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 19, 1923 Nov 1923

The Missouri Miner, November 19, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 12, 1923 Nov 1923

The Missouri Miner, November 12, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 05, 1923 Nov 1923

The Missouri Miner, November 05, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 29, 1923 Oct 1923

The Missouri Miner, October 29, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 22, 1923 Oct 1923

The Missouri Miner, October 22, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 15, 1923 Oct 1923

The Missouri Miner, October 15, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 08, 1923 Oct 1923

The Missouri Miner, October 08, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 01, 1923 Oct 1923

The Missouri Miner, October 01, 1923

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 27, 1923 Sep 1923

The Missouri Miner, September 27, 1923

The Missouri Miner Newspaper

No abstract provided.