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Articles 301 - 330 of 512
Full-Text Articles in Other Engineering
Isopach Maps And Discussion Of The Ordovician And Devonian Of Montana And Adjacent Areas, Arden F. Blair
Isopach Maps And Discussion Of The Ordovician And Devonian Of Montana And Adjacent Areas, Arden F. Blair
Bachelors Theses and Reports, 1928 - 1970
The intensive postwar search for new petroleum horizons has resulted in widespread prospecting in the northern Great Plains. No commercial production has as yet been derived from Ordovician or Devonian rocks in Montana, but the relatively few tests that have penetrated to critical depths have disclosed encouraging conditions which merit further consideration, especially in Devonian strata.
Occurrence Of Native Copper Near Jefferson City, Montana, Terence G. Kirkland
Occurrence Of Native Copper Near Jefferson City, Montana, Terence G. Kirkland
Bachelors Theses and Reports, 1928 - 1970
Sometime prior to 1870, a group of prospectors made what was believed to be a "rich strike' on one of the tributaries of Prickly Pear Creek in Jefferson County, Montana. Instead of striking it rich, they had uncovered a native copper deposit, worthless to them because of its limited extent and remote location, but now of much interest to the geologist, and to the mining engineer because of its possible commercial value.
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Bachelors Theses and Reports, 1928 - 1970
Iron was electro-deposited from a ferrous chloride bath. Studies were made of deposits formed when current density was varied, and finally when both current density and temperature were changed. An attempt was made to lay the ground work for a long range study of the chloride bath, and to determine the most simple conditions possible for obtaining a smooth, even, and thick deposit.
General Geology And Mines Of Northwestern Montana, Robert L. Sandvig
General Geology And Mines Of Northwestern Montana, Robert L. Sandvig
Bachelors Theses and Reports, 1928 - 1970
The five counties discussed in this paper compose the northernmost and westernmost counties in Montana. On the eastern boundary are Glacier National Park and the Continental Divide; on the southern boundary are Missoula and Powell counties; Idaho lies on the southwestern and western side; and the Canadian border lies along the northern edge. The region is on the Pacific Ocean side of the Rocky Mountains. Three major rivers, the Clark Fork, the Flathead, and the Kootenai drain this area into the Columbia River.
The Anodic Polishing Of Copper In Solutions Of Orthophosphoric Acid, Robert E. Sullivan
The Anodic Polishing Of Copper In Solutions Of Orthophosphoric Acid, Robert E. Sullivan
Bachelors Theses and Reports, 1928 - 1970
The electrolytic cleaning of metals by anodic methods has been known for many years. It was recognized long ago that when the temperature and concentration of the electrolyte were properly regulated, bright clean surfaces were obtained.
A Preliminary Investigation Of Chromite, Lester C. Brown
A Preliminary Investigation Of Chromite, Lester C. Brown
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis was to study the effects of cryolite and a mixture of cryolite and aluminum oxide on a chromite concentrate with special reference to the ability to break the bond between the ferrous iron and chromic oxide in the chromite.
Glaciation In Montana, Alvin H. Lense
Glaciation In Montana, Alvin H. Lense
Bachelors Theses and Reports, 1928 - 1970
Glacial deposits are increasingly entering into consideration in engineering projects, soil surveys, ground-water supply, sources for industrial materials, and other economic enterprises. In the field of engineering, glacial deposits if present must be considered in connection with reservoir sites, dam or bridge abutments, road building, and other types of construction work.
Distribution And Lithology Of Sedimentary Rocks In Montana And Adjacent Areas, Harold Kentta
Distribution And Lithology Of Sedimentary Rocks In Montana And Adjacent Areas, Harold Kentta
Bachelors Theses and Reports, 1928 - 1970
The general features of the sedimentary rocks in a region, their distribution, and the relationships of these rocks to other rocks of the area and of adjacent areas, are some of the things in which most geologists are interested, for reasons of general curiosity or for obtaining a better understanding of their specific problems
Geology Of A Kyanite Deposit Near Ennis, Montana, Clarence L. Nordstrom
Geology Of A Kyanite Deposit Near Ennis, Montana, Clarence L. Nordstrom
Bachelors Theses and Reports, 1928 - 1970
A deposit of kyanite, an aluminum silicate mineral used in the ceramic industry, occurs in the low foothills of the Gravelly range about 10 miles south of Ennis, Montana. This study deals primarily with the character and origin of the deposit, and its relationship to the surrounding rocks.
Laboratory Model Shaking Table; An Investigation Of Defects And Suggested Improvements, George C. Horak
Laboratory Model Shaking Table; An Investigation Of Defects And Suggested Improvements, George C. Horak
Bachelors Theses and Reports, 1928 - 1970
The laboratory model is considered in this thesis. Information gained from this investigation has not been transferred to the larger industrial machines. Some of the factors noted concerning the efficiency of the laboratory shaking table are inherent in this small scale model only.
Insoluble Residues Of Five Sections Of The Amsden Formation, Wilmer R. Peterson
Insoluble Residues Of Five Sections Of The Amsden Formation, Wilmer R. Peterson
Bachelors Theses and Reports, 1928 - 1970
The term, "insoluble residue," as used in this report is that portion of the original rock sample remaining after the sample has been digested by a mixture of one part hydrocloric acid and two parts water. The remains or insoluble residue from this acid treatment may vary from nothing to I00 percent.
An Investigation Into The Adaption Of The Induction Furnace For Determining The Equilibrim Diagram Of The System Cu2s-Fes, John R. Cole
An Investigation Into The Adaption Of The Induction Furnace For Determining The Equilibrim Diagram Of The System Cu2s-Fes, John R. Cole
Bachelors Theses and Reports, 1928 - 1970
This investigation was started in an effort to find an accurate and efficient method of determining the freezing points of ferrous and cuprous sulphides, mixtures of the two substances, and from this to establish the liquidus line of the equilibrium diagram.
Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden
Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden
Bachelors Theses and Reports, 1928 - 1970
This thesis has to do with a study of the production of talc in Montana, describing the local geology of each deposit, and a description of the laboratory tests that were made on various grades of Montana talc in an attempt to determine why some grades of talc can be burned in solid forms while others must be ground, mixed with a binder and molded.
A Preliminary Investigation Of The Hydrometallurgy Of Philipsburg Manganese, W. L. Goodman
A Preliminary Investigation Of The Hydrometallurgy Of Philipsburg Manganese, W. L. Goodman
Bachelors Theses and Reports, 1928 - 1970
In the past the steel industry of the United States has depended almost wholly on imports for its supplies of manganese. Although it is well known that there are enormous deposits of low grade manganese ore in the United States the production of substantial amounts of ferro-grade material from domestic sources presents a field for constructive and practical research.
Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist
Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist
Bachelors Theses and Reports, 1928 - 1970
The purpose of this investigation is to record data pertaining to porosity and permeability derived from physical tests performed on Devonian dolomites occurring in northwestern Montana, and to subsequently summarize the results obtained as an aid in determining the possibility of those dolomites being suitable reservoir rocks for oil and gas accumulation.
Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal
Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.
The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie
The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie
Bachelors Theses and Reports, 1928 - 1970
A determination of the solubility of zinc ethyl xanthate was attempted by measuring the refractive index of a saturated solution of that salt. The small increment in refractive index effected by adding zinc ethyl xanthate to water in saturation quantities rendered measurements difficult and of dubious accuracy.
Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens
Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens
Bachelors Theses and Reports, 1928 - 1970
A method to measure hydrogen overvoltage was developed and checked with metals of known overvoltage. Alloys of bismuth and antimony and of bismuth and cadmium were prepared and their overvoltages determined.
The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn
The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn
Bachelors Theses and Reports, 1928 - 1970
An attempt was made to deposit a 50:50 copper-cobalt alloy from various sulfate electrolytes. No true 50:50 alloy was obtained but various mixtures of cobalt and copper rich crystals were deposited.
Fluorite Near Silver Bow, Montana, Charles V. Campbell
Fluorite Near Silver Bow, Montana, Charles V. Campbell
Bachelors Theses and Reports, 1928 - 1970
The wartime demand for fluorspar has caused renewed interest in fluorite deposits. Near Silver Bow, Montana, a deposit of massive, coarsely crystalline fluorspar, which has not been described in the literature, has attracted the attention of the United States Geological Survey.
The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty
The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to elucidate this phenomena of frother incompatibility, and to offer an explanation based upon several divergent lines of investigation. The research was limited to four common frothing agents, namely, pine oil, n-amyl alcohol, sodium oleate, and sodium lauryl sulphate (Dreft).
Production Of Iron-Tin Compacts By Powder Metallurgy And A Synopsis Of Their Principle Properties, Matt C. Andrews
Production Of Iron-Tin Compacts By Powder Metallurgy And A Synopsis Of Their Principle Properties, Matt C. Andrews
Bachelors Theses and Reports, 1928 - 1970
This thesis is concerned primarily with the production of metal powder compacts of iron and tin. In producing these compacts, the effects of processing variables on some of the essential properties of the pellets made were investigated.
Hardness And Electrical Resistivity Of Copper-Iron Powder Metal Compacts, Fred A. Foyle Jr.
Hardness And Electrical Resistivity Of Copper-Iron Powder Metal Compacts, Fred A. Foyle Jr.
Bachelors Theses and Reports, 1928 - 1970
Although powder metallurgical methods have been used for years to fabricate tungsten and platinum, very little scientific data have been recorded until the beginning of this century. A large percentage of all commercial production at present is based upon past practice rather than upon scientific knowledge.
Methods Of Determining Porosity And Spatter Losses Of Arc Welds, Campbell W. F. Funk
Methods Of Determining Porosity And Spatter Losses Of Arc Welds, Campbell W. F. Funk
Bachelors Theses and Reports, 1928 - 1970
The original objective of this project was to determine the effect of varying current intensity and electrode coating composition upon the spatter losses and porosity of arc welds made by alternating current. This subject was suggested by the Welding Research Council of the Engineering Foundation, which is a clearing house for welding research in order to avoid duplication of work.
Age Hardening Of Copper Antimony Alloys, William R. Stern
Age Hardening Of Copper Antimony Alloys, William R. Stern
Bachelors Theses and Reports, 1928 - 1970
A large number of alloys of varying percentages of copper and antimony were prepared. These alloys were treated in various ways which might be expected to produce age hardening. The effect of cold working was studied in the range where the alloys were malleable.
The Electrodeposition Of Iron-Manganese Alloys, Raymond D. Magorien
The Electrodeposition Of Iron-Manganese Alloys, Raymond D. Magorien
Bachelors Theses and Reports, 1928 - 1970
An electrodeposition of an iron-manganese alloy was made from the same conditions determined by previous research. Various addition agents were experimented with in an attempt to produce better conditions for electro-deposition. It was found advantageous to add small amounts of sodium lauryl sulfate and ammonium sulfite to the electrolyte.
An Isopach Map And Discussion Of The Marine Jurassic Of Western United Sates And Canada, John H. Ferry
An Isopach Map And Discussion Of The Marine Jurassic Of Western United Sates And Canada, John H. Ferry
Bachelors Theses and Reports, 1928 - 1970
Recent demands for petroleum to carry on the war effort have resulted in widespread prospecting in the northern Great Plains. Nearly all oil wells now drilled are of a depth to penetrate the marine Jurassic formations. It is known that these strata differ in thickness from place to place, but information of distribution, thickness, and lithology has not yet been compiled.
Electroplating Of Chromium Upon A Nickel Plated Magnesium Alloy, Harmel Dawson
Electroplating Of Chromium Upon A Nickel Plated Magnesium Alloy, Harmel Dawson
Bachelors Theses and Reports, 1928 - 1970
A nickel plating operation for magnesium alloys was investigated and proved successful in plating a small sample of a typical commercial magnesium alloy, Dowmetal J1.
Flotation Of A Complex Sulphide Ore Containing Tetrahedrite, James C. O'Dea, Lorimer W. Hoar
Flotation Of A Complex Sulphide Ore Containing Tetrahedrite, James C. O'Dea, Lorimer W. Hoar
Bachelors Theses and Reports, 1928 - 1970
The ore investigated in this thesis is a zinc-copper-lead ore. Microscopic analysis of this complex sulphide ore showed it to contain pyrite, sphalerite, arsenopyrite, galena, chalcopyrite, tetrahedrite, and covellite, with quartz as the gangue constituent.
The Electrodeposition Of Chromium From Trivalent Salt Solutions, Bahri Ersoz
The Electrodeposition Of Chromium From Trivalent Salt Solutions, Bahri Ersoz
Bachelors Theses and Reports, 1928 - 1970
The enormous number of previous experiments and researches for the improvement of the commercial chromic acid bath, did not succeed even in the partial elimination of any one of the disadvantages of chromic acid bath. This led the author to believe that the poor performance is an inherent quality of the chromic acid bath, and is due to the fact that the deposition occurs from the higher state of oxidation.