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Articles 704731 - 704760 of 705870
Full-Text Articles in Entire DC Network
Suggested Improvements For A Wisconsin Zinc Mill, Raymond Alexander Bingham
Suggested Improvements For A Wisconsin Zinc Mill, Raymond Alexander Bingham
Bachelors Theses
No abstract provided.
Topography And Geology Of The Panther Bluffs Area, Roswell H. Maveety, Joseph Stewart Irwin
Topography And Geology Of The Panther Bluffs Area, Roswell H. Maveety, Joseph Stewart Irwin
Bachelors Theses
No abstract provided.
Geology Of A Carboniferous Outlier In Lawrence County, Missouri, Maurice Merton Albertson
Geology Of A Carboniferous Outlier In Lawrence County, Missouri, Maurice Merton Albertson
Bachelors Theses
No abstract provided.
A Summary Of The Theories Of The Origin Of The Lake Superior Copper Ores, With Evidences Pertaining Thereto, Eva Endurance Hirdler
A Summary Of The Theories Of The Origin Of The Lake Superior Copper Ores, With Evidences Pertaining Thereto, Eva Endurance Hirdler
Bachelors Theses
"In each of the foregoing theories we obtain sound reasoning in connection with many facts. Therefore a correlation of these facts ought to give us enough material to deduct a sound theory. The most plausible supposition seems to be that all metallic ores are derived ultimately from the interior of the earth, from a great metallographic province, when they are delivered by igneous eruptives near or at the surface"--Conclusion With Reasons, page 29.
Evidence Pertaining To The Origin And Deposition Of Ore Deposits, James Edward Mcgoughran
Evidence Pertaining To The Origin And Deposition Of Ore Deposits, James Edward Mcgoughran
Bachelors Theses
"In looking over the evidence grouped in the foregoing tables it is at once evident that by far the greater number of the ore deposits are associated with igneous rocks, and that they have resulted from deposition from not solution. It appears that, relatively, deposition by segregation from an igneous magma is of much less importance than deposition from solution, in the formation of ore bodies. However, segregation is the only explanation possible in accounting for some very important deposits, but they are very few in number. In distinguishing between deposits resulting from hot ascending meteoric solutions and those resulting …
Mine Map And Geology Of Saltpeter Cave, Milan Harrison Detweiler, Frank Edgar Townsend
Mine Map And Geology Of Saltpeter Cave, Milan Harrison Detweiler, Frank Edgar Townsend
Bachelors Theses
"The date of discovery of Saltpeter Cave is not known and there is no way of determining it. Numerous accounts are given of the cave by the oldest settlers in the neighborhood, some of which are both startling and interesting. for instance, it is reported that the soldiers of the Confederate army visited this cave for the purpose of securing guano from which to extract saltpeter for use in the manufacture of gunpowder. This may be the origin of its name"--Geology, Page 1.
A Comparative Test Of The Air Consumption Of Rock Drills, John Elmer Schultz, Christian R. Miller
A Comparative Test Of The Air Consumption Of Rock Drills, John Elmer Schultz, Christian R. Miller
Bachelors Theses
"The aim of this thesis is an attempt to determine the relative efficiency, of four standard types of rock drills, as to air consumption. The air consumption was based upon the cubic inch of rock drilled by each machine. The orifice method of measurement being utilized, in connection with the exhaust to determine the desired consumption"--page 1.
The Design Of A Sampling Mill To Treat A South East Missouri Lead Ore, Robert Nathaniel Copeland, Edwin Cook Mcfadden
The Design Of A Sampling Mill To Treat A South East Missouri Lead Ore, Robert Nathaniel Copeland, Edwin Cook Mcfadden
Bachelors Theses
"The purpose of the work that was undertaken in preparing this thesis was to provide plans and specifications for a sampling mill to be erected by the St. Louis Smelting and Refining Co. at their plant near St. Francois, Mo... It was intended at the outset to design the plant completely and to provide full working drawings and specifications for all parts of the mill. On account of the lack of time, however, it has been found necessary to somewhat reduce the amount of work. As a result only general plans and specifications with a few of the more important …
Ratio Of The Thermal And Electrical Conductivities For Gas Carbon, Oscar Alan Randolph
Ratio Of The Thermal And Electrical Conductivities For Gas Carbon, Oscar Alan Randolph
Bachelors Theses
"The method of F. Kohlrausch for the determination of the ratio of the heat conductivity upside down gamma , to the electrical conductivity k of a substance is of practical value as well as of theoretical interest. Of practical value because there may be obtained from it - with much great ease than by direct methods - the heat conductivity which has immediate applications, not only to the design and construction of furnaces, but to various other matters of such import; of theoretical interest to the physicist, because of the Wiedmann-Franz and its consequent relation to the electron theory; to …
Friction Of Air In Small Pipes And Fittings, Bejamin H. Cody, Ernest J. Allen
Friction Of Air In Small Pipes And Fittings, Bejamin H. Cody, Ernest J. Allen
Bachelors Theses
"The work of Park and Peterson during 1909-10 at the Missouri School of Mines revealed the fact that more data are needed concerning the loss of pressure due to elbows and other fittings of pipes under three inches in size. Accordingly, we decided to undertake the continuation of their work as a thesis. The apparatus used was practically the same as used in the previous thesis"--page 1.
A Comparison Of The Silver Losses Due To Cupellation Using Different Kinds Of Cupels, James A. Taggart, Anton Frederick Karte
A Comparison Of The Silver Losses Due To Cupellation Using Different Kinds Of Cupels, James A. Taggart, Anton Frederick Karte
Bachelors Theses
"In this thesis our object has been to ascertain the silver losses in cupellation with different kinds of cupel materials, thereby determining the efficiency of the various materials used for making cupels. When beginning this work we hardly expected to find such differences in behavior of the various cupels used. However we refer the reader to our curves to see what really happened"--page 2.
Design And Details Of Construction For A 50-Ton Amalgamation, Concentration, And Cyaniding Mill, Hector Julio Boza, Carlos Enrique Elmore Y Guerra
Design And Details Of Construction For A 50-Ton Amalgamation, Concentration, And Cyaniding Mill, Hector Julio Boza, Carlos Enrique Elmore Y Guerra
Bachelors Theses
"Our problem is to design and provide for the construction of a mill to cyanide a certain gold ore. Full laboratory experiments have been made on the ore and on the results of these tests together with the consideration of the conditions of locality, transportation facilities, and labor available we have based the design of our mill. Our aim has been to so design the mill that the capacity may be increased without necessitating any change of arrangement in the part already constructed. To increase the capacity up to 100 tons practically the only additional equipment required will be in …
A Test Of The Municipal Light And Water Plant Of The City Of Lebanon, Missouri, Roy Elliott Sprague, GermáN GarcíA Lozano, Shiv Raj
A Test Of The Municipal Light And Water Plant Of The City Of Lebanon, Missouri, Roy Elliott Sprague, GermáN GarcíA Lozano, Shiv Raj
Bachelors Theses
"The power plant tested for this Thesis is located at Lebanon, Missouri, on the St. Louis and San Francisco Railroad, and belongs to the City of Lebanon. The plant consists of two Brownell horizontal tubular boilers with a shell six feet by 18 feet, and each containing 70 four-inch tubes. The stack is 36 inches in diameter and at the time of the test, was broken off so that it was about 50 feet high. The boilers were fed by a steam pump, the water passing through a Cochrane heater. The engine equipment consists of one 10 by 12 inch …
The Determination Of The Electrical Resistance Of The Human Body Under Conditions To Be Met Within Underground Mining, Duncan S. Smith, Paul E. Coaske
The Determination Of The Electrical Resistance Of The Human Body Under Conditions To Be Met Within Underground Mining, Duncan S. Smith, Paul E. Coaske
Bachelors Theses
"The use of electric wires in mines for power purposes is dangerous to human life. Deaths occur every year from electric shocks, and in most cases these accidents could have been prevented if some precaution had been taken by the victims, or if some care had been taken to protect them from coming in contact with live wires. Most workingmen accustomed to working around electric wires become careless and a lack of knowledge of the danger involved gives rise to the many accidents that occur each year...The object of this investigation is to determine just what resistance the human body …
The Efficiency Of The Rolla Municipal Power Plant, True Walter Blake, Otto Allen Lunak
The Efficiency Of The Rolla Municipal Power Plant, True Walter Blake, Otto Allen Lunak
Bachelors Theses
"The object of this thesis is to determine the efficiency of the separate units and of the plant as a whole under actual normal working conditions"--Object, page 1.
A Sanitary Study Of The Well Waters Of Rolla, Alexander Grosberg, Sam Paul Lindau
A Sanitary Study Of The Well Waters Of Rolla, Alexander Grosberg, Sam Paul Lindau
Bachelors Theses
"In undertaking the analysis of the well waters of Rolla, it was done with the hope that the factors governing the purity of well waters would be brought out. Such a study would also be of great help in determining the proper location and depth of the wells in the community"--Introduction, Page 1.
Worcester Survey: Children's Charities, John Leroy Hughes
Worcester Survey: Children's Charities, John Leroy Hughes
Historical Dissertations & Theses
This report does not cover all of the child-helping organizations in the city but those not mentioned here are described in the other departments of the survey. A correct understanding of the psychological ideals of each institution, especially those under Catholic management, is necessary in order to get a fair appreciation of the work being done.
Historical Sketch Of The Parks And Playgrounds Of Worcester, John Francis Roche
Historical Sketch Of The Parks And Playgrounds Of Worcester, John Francis Roche
Historical Dissertations & Theses
Tracks the history of Worcester's parks and playground beginning with 1669's Committee of Settlement recommending that twenty acres be reserved at the center of the town "for a training field and to build a school house upon".
Juvenile Deliquency In Worcester, Massachusetts, Thomas Charles Carrigan
Juvenile Deliquency In Worcester, Massachusetts, Thomas Charles Carrigan
Historical Dissertations & Theses
A study of "Juvenile Delinquency in Worcester" was made by Albert H.N. Baron of Clark University in May 1906. Worcester was then a city of about 130,000 inhabitants and Baron's study covered the period from 1901 to May 1906. The period chosen in the present study is from May 1907 to April 1910 and Worcester at this writing has a population of about 146,000. The present study is intended to supplement Baron's to April 1, 1910, except for the interval between May 1906 and June 1907. During these thirteen months the present juvenile law (Chapter 413 of the acts of …
Energy Loss In Commercial Condensers, Walter Roland Allen
Energy Loss In Commercial Condensers, Walter Roland Allen
Electrical and Computer Engineering ETDs
The investigation of the energy loss in condensers is one which electricians and experimenters have long carried on. Their efforts have been restricted chiefly to alternating currents. Many methods have been proposed and used with varying success. The losses in condensers are due to dielectric hysteresis and leakage. That the dielectric of a condenser becomes heated when an alternating current is applied to terminals has long been known. A condenser which has been charged does not lose its entire charge when it is discharged, part of it remaining as a residual charge. Kleiner used the thermo-couple embedded in the dielectric …
Our Rivals : The Molds, Yeasts And Bacteria., H. B. Knighton
Our Rivals : The Molds, Yeasts And Bacteria., H. B. Knighton
Electronic Theses and Dissertations
In this day when the erstwhile plebian hog has taken to scaling the social ladder and has climbed beyond the ken of many an honest workman, it behooves the housewife to wage, with double zeal the warfare on our rivals, the molds, yeasts and bacteria who come as unbidden guests eating the very food that we must have, raising enormous families at our expense, frequently making themselves obnoxious as long as the food lasts, then quietly withdrawing into themselves and either waiting for a fresh supply of food or allowing the housewife to start them by the dust-brush route to …
Preliminary Investigation For The Development Of An Hydro-Electric Plant Okanagan Valley British Columbia, Robert Arthur Barton
Preliminary Investigation For The Development Of An Hydro-Electric Plant Okanagan Valley British Columbia, Robert Arthur Barton
Professional Degree Theses
"The Okanagan Valley of British Columbia extends one hundred and thirty-nine miles North from the International Boundary and is immediately West of the Gold Range, an off-shoot of the Rockies ... The suitability of the soil and climate for growing fruit and other special crops has long been recognised; and in the favoured localities, where water is easily obtainable for irrigation, great advance has been made in the last ten years in this direction ... In a mountainous country, where water is abundant and power is needed for transportation, lighting town, and running factories, the natural result is an investigation …
Description Of The Surveys Of Portions Of The South And East Boundaries Of The Yellowstone National Park, Albert Babbitt Bartlett
Description Of The Surveys Of Portions Of The South And East Boundaries Of The Yellowstone National Park, Albert Babbitt Bartlett
Professional Degree Theses
"This Thesis will be generally descriptive of the points connected with obtaining the contract under which this survey was made, the outfit necessary for the part doing the work, the personnel of the party, and the duties of each man, the engineering instruments employed in the survey, the country through which the Boundary lines run and the difficulties encountered, the writing of the field notes, and is accompanied by illustrations"--Introduction, page 6.
Mining, Concentrating, And Smelting Of Lead And Zinc Ores In Hunan Province China, Tsik Chan Tseung
Mining, Concentrating, And Smelting Of Lead And Zinc Ores In Hunan Province China, Tsik Chan Tseung
Professional Degree Theses
"The mine in question lies in the western part of Shangning District, in the province of Hunan. It is about one hundred and twenty miles south of Changsha, the capital of the province. It may be reached by a four days' trip from Changsha on foot. One can also reach there by native boat in a few days, depending on the wind and the stage of water. The mine is about three miles from the Siang River. This river has its sources in the northern part of Kwangtung province and in the eastern part of Kwangsi province. It flows north-ward …
Laboratory Methods For Copper-Nickel Ores, Walter Irving Phillips
Laboratory Methods For Copper-Nickel Ores, Walter Irving Phillips
Professional Degree Theses
"The Sudbury nickel field, situated in the Province of Ontario, Canada, near the northern shore of Lake Huron, was practically discovered when building the Canadian Pacific Railway. The method of deposit is unusual in that it is not a vein filling but a true igneous deposition. The magma carried besides rock making constituents three principle sulphides, viz. - those of iron as pyrrhotite; of copper as chalcopyrite; and of nickel as pentlandite. These three sulphides, being heavier than the rock matter, and, favored by the slow rate of cooling of the magma, had sufficient time to settle into the lowest …
The Design And Installation Of An Apparatus For Dehydrating The Air Which Is Used In The Blast Furnaces Of The Hanyang Iron And Steel Works And Other Suggested Improvements, Hanyang, Hupei, China, Andrew Jackson Seltzer
The Design And Installation Of An Apparatus For Dehydrating The Air Which Is Used In The Blast Furnaces Of The Hanyang Iron And Steel Works And Other Suggested Improvements, Hanyang, Hupei, China, Andrew Jackson Seltzer
Professional Degree Theses
"The Hanyang Iron and Steel Works is located in the city of Hanyang, Hupei Province, inland on the mighty Yangste Kiang, a distance of one thousand seventy-five kilometers from Shanghai. The Works is at the junction of the Yangste and Han Rivers and covers several acres. The Works was established by the Viceroy Tchan and was to have been located at Shanghai, but His Excellency, the Viceroy, was transferred to Wuchang, so he decided to locate the Works in Hanyang - just on the opposite bank of the Yangste, from Wuchang ... The Works originally consisted of two blast furnaces …
An Investigation Into The Causes Of Accidents To Shot Firers In Bituminous Coal Mines, George Edwin Lyman
An Investigation Into The Causes Of Accidents To Shot Firers In Bituminous Coal Mines, George Edwin Lyman
Professional Degree Theses
"In many cases the explosions which kill so many shot firers can be directly attributed to the presence of gas, or coal dust, but often there will be explosions of terrific violence in mines which are so wet as to preclude the possibility of dust being held in suspension in the air current, and where no gas has been detected in the history of the mine. Such an instance came under the writer's observation some time ago in which his opportunities of investigation were excellent, and the results of which may perhaps throw light on other apparently mysterious explosions of …
Reheating Compressed Air By Internal Combustion, Norman L. Ohnsorg
Reheating Compressed Air By Internal Combustion, Norman L. Ohnsorg
Professional Degree Theses
"The perfection of a reheater of high efficiency has been discussed and experimented upon for a period of time nearly as long as the application of compressed air itself. At the present time all the reheaters are by the external combustion of fuel as in the case of stoves or furnaces, where the air pipes are carried through the flames or is surrounded by steam pipes, or by some similar contrivance, all of which the heating efficiency of the fuel upon the compressed air is low, due to the great loss by radiation, and hot escaping gases. Reheating compressed air …
A New Copper District In Southern Arizona, Harry Carleton Chamberlain
A New Copper District In Southern Arizona, Harry Carleton Chamberlain
Professional Degree Theses
"Within the last two or three years, the copper mining industry has been growing at a remarkable rate. Perhaps not so much in the output of refined copper as in the exploitation and development of new fields. The panic of 1907 left its mark only too deep on many of the then producing mines. the inflated price of copper has aroused interest in those who owned or controlled small or undeveloped mines ... One of these districts is the one to be treated of in this report. It is not a new discovery, but rather one of the oldest camps …
A Survey Of The Roman Catholic Church Within The United States, Carl Burkhart
A Survey Of The Roman Catholic Church Within The United States, Carl Burkhart
Manuscript Thesis Collection
Abstract unavailable.