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Articles 67951 - 67980 of 69091
Full-Text Articles in Physical Sciences and Mathematics
A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan
A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan
Bachelors Theses and Reports, 1928 - 1970
Measurements of reflectivity of opaque ore minerals can be made with the common photographic light meter and a standard reflecting microscope, both of which are available to most Geology laboratories. During the course of the investigation, approximately 30 minerals were examined, of which 10 were duplicates. Comparable results, for the most part within 3% of previously determined valued, were obtained.
Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr.
Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr.
Bachelors Theses and Reports, 1928 - 1970
Ever since the introduction of metal products into our civilization, especially those of iron and steel, man has been confronted with the problems of corrosion prevention. As the agents which are conducive to corrosion cannot be completely eliminated, it has been necessary for man to develop processes and materials that will retard the degeneration of the metals that are so important to our industrialized world.
Determination Of The Shape And Position Of The Zodiacal Light By Use Of An Automatic Recording Method, James D.G. Lindsay
Determination Of The Shape And Position Of The Zodiacal Light By Use Of An Automatic Recording Method, James D.G. Lindsay
Physics & Astronomy ETDs
The problem was to determine the shape of the zodiacal light pyramid and also its position relative to the ecliptic using an automatic recording system. The main requirement was to be simplicity in the interpretation of data.
Stability And Concentration Effects In The Use Of Siloxene As A Chemiluminescent Indicator In Redox Titrations, William F. Burkhardt
Stability And Concentration Effects In The Use Of Siloxene As A Chemiluminescent Indicator In Redox Titrations, William F. Burkhardt
Chemistry Honors Papers
This 22 page thesis attempts to determine the limitations of, and to extend the applicability of siloxene as a chemiluminescent indicator in redox titrations.
Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra
Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra
Bachelors Theses and Reports, 1928 - 1970
The role of liquid metals in industry is rapidly becoming of increasing importance. The physical and chemical tendencies of metals in the liquid condition must be ascertained before a metal in this form can be put to practical usage. In very many stages of mineral processing and recovery, in molten-metal baths for temperature control on heat treating, and in several industries where heat transfer is an important aspect, metals may be at one time or another in a liquid condition.
Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker
Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker
Bachelors Theses and Reports, 1928 - 1970
Except for the early work of Boutwell and Irving, little has been published on the geology of the Park City mining district. For this reason and because of the availability of a selected suite of ores from the Silver King mine of this area, this writer chose the mineralogy of the Silver King mine as a senior thesis for the department of Geology of the Montana School of Mines.
The Freezing Point Of Water In Puddled And Unpuddled Soils At Different Soil Moisture Tension Values, Robert B. Campbell
The Freezing Point Of Water In Puddled And Unpuddled Soils At Different Soil Moisture Tension Values, Robert B. Campbell
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A technique that will adequately describe the physical condition of water in the soil has long been desired by scientists. The method should include the effect of soluble materials on the osmotic pressure of the soil solution, and also the effect of surface force action between the soil and soil water.
Parker (8) demonstrated that the freezing point was reduced in the presence of finely divided material. This suggested the possibility of using the cryoscopic procedure to measure the physical condition of water soil. More recently, the introduction of Thermistors for accurate temperature measurement have made it desirable to investigate …
A Study Of The Structures Of Some Compounds Of The Symmetrical Triazine Series By Means Of Their Ultraviolet Spectra, Robert William Schaefer
A Study Of The Structures Of Some Compounds Of The Symmetrical Triazine Series By Means Of Their Ultraviolet Spectra, Robert William Schaefer
Honors Theses
The purpose of this work is to investigate the ultraviolet absorption spectra of symmetrical triazines with the outlook of correlating, on a theoretical basis, the date obtained with molecular structure.
Investigations Into The Synthesis Of Indazole, Albin Joseph Rzeszotarski
Investigations Into The Synthesis Of Indazole, Albin Joseph Rzeszotarski
Honors Theses
These investigations were undertaken in order to prepare a suitable quantity of pure indazole for further research by other student. A secondary and equally important purpose of the work was to study the products of the reaction carried out and their relative abundance under varying conditions of pH. A suitable electronic mechanism for the reaction was to be proposed.
Indazole, at present, has no commercial applications, and is not produced (to the author's knowledge) by any large chemical concern. The interest in this compound is chiefly due to the several structural formulae which have been assigned to it and which …
A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce
A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce
Bachelors Theses and Reports, 1928 - 1970
Any investigation of the many gold silver producing districts of Montana will necessarily include the name Zosell. The Zosell Mining District, often referred to as the Emery District, was never a major producer in the state; however, its location, history, type of deposit, and character of ore, has drawn the interest of many prominent investigators of the mineral industry.
Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta
Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta
Bachelors Theses and Reports, 1928 - 1970
The exact upper boundary of the Devonian of Montana has long been a controversy, as is true of the Devonian-Mississippian contact in many other localities. In an effort to delimit the upper Devonian, various paleontologic studies have been made, more especially in the southwestern part of the state.
Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson
Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson
Bachelors Theses and Reports, 1928 - 1970
The possibility of defining the roots of one of the volcanic sources of the Upper Cretaceous Livingston formation led to the detailed mapping upon an enlarged aerial photograph of a complexly intruded, folded, and faulted area about 10 miles northeast of Whitehall, Montana.
The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner
The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner
Bachelors Theses and Reports, 1928 - 1970
The construction of the apparatus was performed entirely in the machine shops at the Montana School of Mines. The materials utilized in the construction were obtained through the courtesy of many sources: the A. C. M. Co., the Montana Power Co., and the Western Iron Works.
Life History Of The Utah Sculpin Cottus Bairdi Semiscaber (Cope) In Logan River, Utah, William M. Zarbook
Life History Of The Utah Sculpin Cottus Bairdi Semiscaber (Cope) In Logan River, Utah, William M. Zarbook
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The study of the Utah sculpin in Logan River was based on 801 specimens collected during 1949 to March 1951. Numbers of fish examined for various catagories of the study wares length-frequency, 495; aging by vertebrae, 407; length-weight relationship, 601; and food habits, 275.
Fish were collected by use of an electric shocking machine generating 600 watts and 220 volts. Numbers of fish occurred as high as 150 per tenth mile of stream. Preferred habitats occurred in areas of coarse gravel and small rocks.
Vertebrae dissected from the fish were used in age determination. Length-frequency proved to be a general …
Preparation Of 3-Methylphenanthrene, Yvonne C. Bestler
Preparation Of 3-Methylphenanthrene, Yvonne C. Bestler
Bachelors’ Theses
The year 1929 witnessed the opening expansion of the previously small list of naturally occurring phenanthrene compounds. The new groups of substances included were as strikingly different in their actions on animal organisms as they were similar in structure.
Pellet Seeding On Sagebrush Range, Gordon E. Gatherum
Pellet Seeding On Sagebrush Range, Gordon E. Gatherum
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Seeding deteriorated range lands efficiently and economically has become one of the most promising means of improving the agricultural economy of the western range states. By providing the most rapid means of increasing the quantity and improving the quality of forage for livestock, and aiding in the prevention of soil erosion, artificial seeding contributes directly to the stability of agriculture.
Although many successful methods of artificial revegetation have been developed by experience and through research, there is still a great need for refinement in techniques to insure better overall success and greater economy of operation. Improper methods often result in …
Production Of Sponge Iron From Pyrites, Robert W. Leeson
Production Of Sponge Iron From Pyrites, Robert W. Leeson
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to record and discuss the results of tests conducted, at the Montana School of Mines, in which pyrite concentrates from the Concentrator Department of the Anaconda Reduction Works, Anaconda, Montana, were subjected to the reducing effects of natural gas at elevated temperatures in an endeavor to produce iron in the metallic form.
A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll
A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll
Bachelors Theses and Reports, 1928 - 1970
The oldest system in which identifiable invertebrate fossils have been found is the Cambrian. The basal Cambrian formation found in Montana is the Flathead sandstone and quartzite of Middle Cambrian age. No fossils have been reported from this formation. Above the Flathead is the Wolsey formation composed of green fissile shale with sandy and limy members. This fossiliferous member of the Middle Cambrian is known in Northwestern Montana as Gordon, and in the Philipsburg quadrangle as the Silver Hill formation.
The Saponification And Chlorine Determination Of Alkyl Chlorobenzoates To Determine Their Identity And Purity, Joan Bardele
The Saponification And Chlorine Determination Of Alkyl Chlorobenzoates To Determine Their Identity And Purity, Joan Bardele
Bachelors’ Theses
Many of the present reagents tor the preparation of alcohol derivatives are deficient in at least one respect. A preparative investigation was made by Mr. Robert Johnson of alkyl chlorobenzoates, by substitution of benzoyl chlorides on aloohols, since various benzoyl chlorides are now available commercially. Mr. Johnson presented a thesis on the "Preparation of Alkyl Chlorobenzoates And Their Application As Alcohol Derivatives". As a result or his work thirty eaters previously not reported in literature were prepared and their melting points and boiling points and refractive indices determined.
In order to give an indication of the identity and purity ot …
The Preparation Of Long Chain Secondary Aliphatic Amines, Robert Fay Betts
The Preparation Of Long Chain Secondary Aliphatic Amines, Robert Fay Betts
Bachelors’ Theses
As organic chemistry has always seemed to be the most interesting study to me, I have chosen this particular branch or chemistry for a thesis.
I found through correspondence with some of the larger petroleum companies in the United States that the preparation of long chain secondary amines would constitute a good thesis topic because these compounds have begun to assume importance as additives to lubricating oil.
A Modified Micro Isoteniscope For Measuring Vapor Pressure, Arthur J. Bates
A Modified Micro Isoteniscope For Measuring Vapor Pressure, Arthur J. Bates
Bachelors’ Theses
A survey of literature will show that the vapor pressures of many substances have not been determined. A probable reason tor this lack of available data might be that the instrumentation needed for these measurements have been quite complex and required highly skilled personnel for its performance.
Vapor-pressure measurements are important in all distillation problems and in the calculation of certain other physical properties. They are used in the correction of boiling points and in the recovery of solvents. The concentration of vapor in the gas phase may be regulated effectively by controlling the temperature of the liquid. Humidity conditions, …
Oxidation Of Silver As A Method Of Measuring Ozone Concentration, Lorne Maxwell Chanin
Oxidation Of Silver As A Method Of Measuring Ozone Concentration, Lorne Maxwell Chanin
Physics & Astronomy ETDs
It has been found that, under certain conditions, a chemical reaction occurs between silver and ozone. The products of this reaction are silver oxides and oxygen. When heated to a certain temperature, the silver oxides are decomposed into silver and oxygen. If this reaction were produced, then the amount of oxygen resulting from the decomposition would be a measure of the amount of ozone originally present.
The Intensity Of Zodiacal Light, Allan F. Beck
The Intensity Of Zodiacal Light, Allan F. Beck
Physics & Astronomy ETDs
The study of the intensities measured in the region of the zodiacal light, the second most important contributor to this light of the night sky after starlight has been subtracted, is the purpose of this paper.
Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Internal Pressure And Related Physical Properties, Eugene Ceperley
Internal Pressure And Related Physical Properties, Eugene Ceperley
Bachelors’ Theses
What is internal pressure? That question has never been answered in a satisfactory manner. Probably the best answer is the simple statement that it is a measure of the attraction between molecules. While this is true it gives no indication of what causes the attractive force or of the effects which this attraction has on a substance.
In this thesis an attempt will be made to use this vague definition of internal pressure to find a method of calculating internal pressure using data for various physical properties. The liquid state of various substances will be considered. A relationship which holds …
Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry
Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
A Kinetic Study Of The Autocatalytic Reaction Between Aniline And Benzoic-Anhydride In A Non-Polar Solvent., Jack Warren Knight
A Kinetic Study Of The Autocatalytic Reaction Between Aniline And Benzoic-Anhydride In A Non-Polar Solvent., Jack Warren Knight
LSU Historical Dissertations and Theses
No abstract provided.
A Study Of Some Factors Affecting Chromatographic Adsorption., Patterson B. Moseley
A Study Of Some Factors Affecting Chromatographic Adsorption., Patterson B. Moseley
LSU Historical Dissertations and Theses
No abstract provided.