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Articles 26161 - 26190 of 26304
Full-Text Articles in Entire DC Network
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Bachelors Theses and Reports, 1928 - 1970
The problem considered in this report is one of the mineralogy and mode of formation of the extremely pure, large bodies of vermiculite. Mineralogically the ultrabasic intrusive, with which the economic mineral is associated, presents an array of rather unusual minerals. The determination of these minerals, their associations, and the sequence of alteration that lead to the formation of the vermiculite bodies, constitutes the problem.
Subsurface Pressure Regulation Of High Pressure Condensate Wells, John Oscar Farmer
Subsurface Pressure Regulation Of High Pressure Condensate Wells, John Oscar Farmer
Professional Degree Theses
"The discovery of deeper production and higher pressures has resulted in the need for control equipment for preserving and protecting these great reservoirs of energy; and, in the case of high pressure condensate wells, has resulted in the need for means for preventing freezing or hydrate solidification caused by throttling the production. Development of a successful removable subsurface regulator has enabled operators to reduce dangerously high surface flowing pressures to safe workable limits; and, by moving the point of principal pressure reduction from the surface to warmer subsurface levels, has resulted in complete elimination of freezing conditions in flow lines. …
Newark Engineering Notes, Volume 5, No. 1, December, 1941, Newark College Of Engineering
Newark Engineering Notes, Volume 5, No. 1, December, 1941, Newark College Of Engineering
Newark Engineering Notes
A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "The Theory of Relativity and Its Application to Electromagnetism" by James H. Fithian "Easy Way to Blackout Windows in Home Is Outlined" by Engineering School Head "Tau Beta Pi" "James A. Darling Writes From the Canal Zone" "Professor Harold N. Cummings Appointed Vice-President" "Promotions and Appointments" "N. T. S. in the World War" by Professor James C. Peet "Professor Robert W. Van Houten Appointed Assistant Dean" "Supersonic Vibrations" by John E. Freehafer "Civilian Pilot Training and …
Stratigraphy And Paleontology Of The Eagle Formation In Montana And Adjacent Areas, Raymond Thompson
Stratigraphy And Paleontology Of The Eagle Formation In Montana And Adjacent Areas, Raymond Thompson
Bachelors Theses and Reports, 1928 - 1970
A conspicuous two hundred and fifty foot sandstone of central Montana, known as the Eagle Formation, constitutes part of the some five thousand feet of Cretaceous sediments in the state. It stands out in steep cliffs which stretch for many miles in the outcrop area from Wyoming to Canada.
Some Chromite Deposits In Madison County, Montana, Russell H. W. Chadwick
Some Chromite Deposits In Madison County, Montana, Russell H. W. Chadwick
Bachelors Theses and Reports, 1928 - 1970
Chromite occurs in Madison County, Montana, in two areas, one three miles southwest of Silver Star, the other five miles southeast of Sheridan. The ore bodies are small, lenticular masses surrounded by metamorphosed sedimentary rocks of the pre-Cambrian Cherry Creek series. The ore was deposited from the hydrothermal solutions which serpentinized the surrounding metamorphic host rocks.
Some Effects Of The Addition Of Tellurium To Lead Alloys, Selim Ozsahin
Some Effects Of The Addition Of Tellurium To Lead Alloys, Selim Ozsahin
Bachelors Theses and Reports, 1928 - 1970
From the standpoint of its practical usefulness, the most important characteristics of metallic lead are its cheapness, resistance to corrosion, plasticity, high specific gravity, low melting point, and its ability to form alloys in which some properties are modified by the addition of other elements, while other properties remain the same.
The Theory Of Alloy Deposition And The Effect Of A Rotating Cathode Upon Such Deposition, With Special Attention To The Possibility Of Depositing Sterling Silver, Kenneth J. Stodden
The Theory Of Alloy Deposition And The Effect Of A Rotating Cathode Upon Such Deposition, With Special Attention To The Possibility Of Depositing Sterling Silver, Kenneth J. Stodden
Bachelors Theses and Reports, 1928 - 1970
In the past few years a great deal of attention has been given to the electrodeposition of alloys. For the main part, this investigation has been of scientific interest only; but in a few instances, such work has attained commercial importance.
An Experimental Investigation Of The Age Hardening Of Copper With Manganese Silicide, Ali Kozak
An Experimental Investigation Of The Age Hardening Of Copper With Manganese Silicide, Ali Kozak
Bachelors Theses and Reports, 1928 - 1970
The subject of the thesis was based upon the theory of precipitation or age hardening of the copper by the compound formed by the Manganese and silicon present in the ternary Cu-Mn-Si alloy. The effect of the heat treatment to such an alloy was to be studied and the best aging time and temperature was to be determined.
Pegmatites In Southwestern Montana, Ora Rostad
Pegmatites In Southwestern Montana, Ora Rostad
Bachelors Theses and Reports, 1928 - 1970
Little has been written on pegmatites in Montana except in conjunction with reports on mining districts. This subject was chosen as a senior thesis to see what facts could be ascertained regarding pegmatites alone, and an attempt has been made by the writer to assemble all written material on pegmatites in southwestern Montana, and to study specimens from those that could be reached or from which specimens were available.
The Scope Of Functions Delegated To The Engineering Department Of A Typical, Progressive Metal Mine, Alvin William Knoerr
The Scope Of Functions Delegated To The Engineering Department Of A Typical, Progressive Metal Mine, Alvin William Knoerr
Professional Degree Theses
"Nearly every conscientious engineering student will subject his college courses to an occasional critical analysis in an effort to assure himself that the studies he is pursuing will be a valuable aid to him in future practice. Possibly this skeptical attitude is accentuated by published letters of graduate mining engineers who decry the courses of mining schools in general and clamor for more practicability and higher specialization. Pure science as it is taught may at times seem to be very remote from any possible practical application. Mathematics may appear to be highly abstract. It seems quite logical that the degree …
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
Bachelors Theses and Reports, 1928 - 1970
The presence of graphite in the ore of the Missouri-McKee Mine has made its treatment by the methods now used quite unsatisfactory. The study was undertaken to develop a new flow sheet which would give a high recovery and yet be economical enough to handle low grade material.
The Mineral Association In Manganese Ores, With Particular Reference To The Phosphorus-Bearing Minerals And Their Removal By Leaching Methods, Daniel Chalmers Mclean
The Mineral Association In Manganese Ores, With Particular Reference To The Phosphorus-Bearing Minerals And Their Removal By Leaching Methods, Daniel Chalmers Mclean
Masters Theses
"The United States Bureau of Mines Experimental Station at Rolla has recently been conducting an intensive investigation of the amenability of Arkansas red ores to enrichment by standard ore dressing methods. These Arkansas ores are low grade with the estimated reserves running into several million tons. They can be concentrated to meet all Grade B ferromanganese specifications - with the exception of that of the phosphorus content, but in all cases the phosphorus is so high as to make the ore worthless under present conditions. This condition suggested the problem of trying to discover a method by which the phosphorus …
The Decolorization Of Wood Rosin., Bernard Samuel Pressburg
The Decolorization Of Wood Rosin., Bernard Samuel Pressburg
LSU Historical Dissertations and Theses
No abstract provided.
Sewer System And Treatment Plant For Middlesboro, Kentucky., Robert E. Martin
Sewer System And Treatment Plant For Middlesboro, Kentucky., Robert E. Martin
Electronic Theses and Dissertations
No abstract provided.
Newark Engineering Notes, Volume 4, No. 1, November, 1940, Newark College Of Engineering
Newark Engineering Notes, Volume 4, No. 1, November, 1940, Newark College Of Engineering
Newark Engineering Notes
A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "Defense Shelters for Civilians" by Harold N. Cummings "Highways and Defense" by Robert W. Van Houten "Bomb Shelters as Recreation Rooms" by Odd Albert "The Cover Design" "A Precision "Q" Meter" by Alfred Heinz "Some Fundamentals of Geology" by D. C. Frost "Named Adviser for Training" "Economics for Industrial Engineers" by George D. Wilkinson "Graduate Students—Newark College of Engineering" "Promotions and Appointments" "Professionalities" "A. S. M. E. Student Chapter Growth" "Fall Convocation Addressed" by Dr. Jackson …
Fm 30-15, Examination Of Enemy Personnel, Repatriates, Documents, And Materiel. July 22, 1940, Robert Bolin Depositor
Fm 30-15, Examination Of Enemy Personnel, Repatriates, Documents, And Materiel. July 22, 1940, Robert Bolin Depositor
United States Department of Defense Military Intelligence
Three-fourth of this manual deals with the treatment of enemy personnel and repatriates, one quarter with documents, and only one brief section, about 1 page, with enemy materiel.
Newark Engineering Notes, Volume 3, No. 4, May, 1940, Newark College Of Engineering
Newark Engineering Notes, Volume 3, No. 4, May, 1940, Newark College Of Engineering
Newark Engineering Notes
A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "The Engineer in Public Service" by Joseph M. Byrne, Jr. "Peter Homack Wins Award" "Why Should I Study This?" by James A. Bradley "The General Quadratic, or Conic, Angle and Its Functions" by Albert A. Nims "An Automatic Slide-Back V. T. Voltmeter" by Philip E. Volz "Civilian Pilot Training Course" "An Optical Method of Visualizing Low Velocity Air Flow" by Stanley Corrsin "Promotions and Appointments" "Co-Operative Plan for Graduate Work "General Motors Assembly of College Students" …
The Age-Hardening Of Aluminum With Mgzn2, Sidney E. Worthen
The Age-Hardening Of Aluminum With Mgzn2, Sidney E. Worthen
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to investigate the age-hardening of aluminum with magnesium and zinc in such proportions as to conform to the compound MgZn2.
Because of a lack of time and proper equipment, the only property investigated was the hardness as indicated by the Rockwell Superficial Hardness Tester.
A Study Of Metallic Eutectics, Robert P. Corbett
A Study Of Metallic Eutectics, Robert P. Corbett
Bachelors Theses and Reports, 1928 - 1970
All of the metals have definite melting points. When a metal is heated above the melting point, it exists as a liquid. Now if the melt is allowed to cool, it will solidify when a temperature corresponding to the melting point is reached.
However, if one metal is added to another metal, both of which are mutually soluble in the liquid state, a certain effect can be noted. The melt will not solidify when the melting point of the pure metal is reached, but will freeze at a lower temperature.
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Bachelors Theses and Reports, 1928 - 1970
This report includes the results of geological investigation of the Clinton Mining District and the Hidden Treasure Mine.The Clinton Mining District is an unorganized mining district situated in the Garnet Range two and one-half miles northeast of the town of Clinton, Montana, which is on the Northern Pacific Railway and the Chicago, Milwaukee, St. Paul, and Pacific Railroad seventeen miles east of the city of Missoula.
The district is in the same range of mountains as the Garnet Mining District and the drainage from the district covered is to the south into the Hell Gate or Clarks Fork of …
Constitution And Properties Of Manganese-Copper Alloys, James Harrison Jacobs
Constitution And Properties Of Manganese-Copper Alloys, James Harrison Jacobs
Masters Theses
"This work was undertaken because of the recently revived interest in the use of manganese as an alloying element. This revival of interest has been mainly due to the development of the process for electro-deposition of manganese by the U. S. Bureau of Mines. Prior to the work of the bureau of Mines there was no commercial source of high purity manganese. Manganese made by the electrolytic process contains less than .03% impurities, while manganese made by other methods contains as high as 3% impurities. The use of high purity manganese as a base for alloys should open up an …
Absorption Of Carbon Dioxide In A Bubble Plate Tower, William Arthur Enderson
Absorption Of Carbon Dioxide In A Bubble Plate Tower, William Arthur Enderson
Masters Theses
"Gas absorption, one of the chief operations of chemical engineering, has occupied investigators for a long time. Results of many experiments on the general subject of gas absorption has been published. However, relatively few data have appeared in the literature on the use of bubble cap towers for gas absorption although they constitute one of the three major classifications of absorption equipment. Bubble cap towers are used extensively in the petroleum industry. More performance data would increase the versatility of existing equipment"--Introduction, page 1.
The Utilization Of Grapefruit Waste., Howard E. Bumsted 1917-1989
The Utilization Of Grapefruit Waste., Howard E. Bumsted 1917-1989
Electronic Theses and Dissertations
No abstract provided.
A Study Of Oleoresinous Film Structure., Frank Rush Mcquilkin
A Study Of Oleoresinous Film Structure., Frank Rush Mcquilkin
Electronic Theses and Dissertations
No abstract provided.
The Effect Of Ethyl Cellulose On The Properties Of Short-Oil Varnishes., John Bradford Scott 1910-1987
The Effect Of Ethyl Cellulose On The Properties Of Short-Oil Varnishes., John Bradford Scott 1910-1987
Electronic Theses and Dissertations
No abstract provided.
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
Bachelors Theses and Reports, 1928 - 1970
The successful application of the phenomenon of precipitation hardening to aluminum and copper has indicated the possibility of hardening all metals in the same way. The phenomenon of age hardening was discoveredin 1911, and since that time much research has been carried on in all parts of the world on various alloy systems.
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Bachelors Theses and Reports, 1928 - 1970
In metallurgical practice today some of the relatively rare metal Indium is recovered as a by-product from the ores of other metals. Indium is a soft, silvery—white metal belonging to the third group of the periodic classification. It is situated just above tin in the electrochemical series.
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Bachelors Theses and Reports, 1928 - 1970
The Golden Sunlight Mine is in the northern part of the Cardwell mining district on the eastern slope of a small range that rises by a series of benches to an elevation of 7,200 at a point five miles east of the town of Whitehall in Jefferson County.
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott
Nebraska Agricultural Experiment Station: Historical Circulars
In Nebraska, a hustling frontier state in 1887, the legislature hesitated not at all in taking advantage of the provisions of the Hatch Act, and now that fifty years have elapsed since the Station was founded, seventy-five years since the Land Grant College Act was passed and the U. S. Department of Agriculture established, and almost twenty-five years since the Agricultural Extension Service was added, it seems worth while to present a general summary of achievement within the state. The main object will be to show some of the important things that have been learned through the investigations of the …
Organization Of Geophysical Parties For Foreign Exploration, Charles Howard Dresbach
Organization Of Geophysical Parties For Foreign Exploration, Charles Howard Dresbach
Professional Degree Theses
"Special conditions encountered in much foreign work make it necessary to consider many factors which are not encountered in domestic programs of geophysical exploration for oil. Although extremely difficult working conditions are frequently met in domestic operations by company and contract crews, the large store of past experience, the availability of fresh supplies, replacement or new equipment, and the proximity of the helpful home office make their surmountal more or less a matter of routine. Contrariwise, foreign operations are frequently conducted under much more difficult conditions, supplies and equipment can be secured only after long and costly delays, and the …