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Articles 69061 - 69090 of 69943
Full-Text Articles in Physical Sciences and Mathematics
Oxygen Enriched Atmosphere Roasting, Clarence Wells Jr
Oxygen Enriched Atmosphere Roasting, Clarence Wells Jr
Bachelors Theses and Reports, 1928 - 1970
The possible benefits of oxygen enriched atmosphere roasting have been known to metallurgists for many years, but only since the development of equipment and processes to produce cheap oxygen in very large amounts has much serious consideration been given this matter.
Geology Of Upper Bear Gulch And Dry Boulder Creek Area Madison County, Montana, Norman King
Geology Of Upper Bear Gulch And Dry Boulder Creek Area Madison County, Montana, Norman King
Bachelors Theses and Reports, 1928 - 1970
Potential gold mines lie high among the rugged peaks of the Tobacco Root Mountains of southwestern Montana. This is a region where little geologic work has been done, though extensive mine operations have been carried on, and valuable ore has been shipped.
A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy
A Preliminary Study Of The Benefication Of Montana Kyanite, Donald Paul Mccarthy
Bachelors Theses and Reports, 1928 - 1970
This investigation is a preliminary study of the beneficiation of Montana kyanite, and while preliminary in degree the information gained may serve as a guide for the eventual exploitation of this Montana resource.
Foraminifera From Pleistocene Beds Near San Pedro, California, R. F. Mitchell
Foraminifera From Pleistocene Beds Near San Pedro, California, R. F. Mitchell
Bachelors Theses and Reports, 1928 - 1970
The age of rocks found in drill cores, and consequently the depths to possible oil-bearing formations has in many localities been determined by micro-paleontologic studies during the past three decades. Of the different micro-fossils used in this work, foraminifera have been studied most, are the best described, and hence, by far the most helpful.
A Textural Analysis Of The Bedford Shale Of Lorain County, Ohio, Troy James Laswell
A Textural Analysis Of The Bedford Shale Of Lorain County, Ohio, Troy James Laswell
Honors Papers
Throughout the course of the school year 1947-48 the writer has collected specimens of the Bedford shale from various localities within Lorain County, Ohio. Textural and mineralogical analyses have been made of the specimens in order to determine the textural and petrologic variation between the two facies, and whether each of the facies was deposited under similar conditions.
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
Bachelors Theses and Reports, 1928 - 1970
The purpose of this report is to serve as a written explanation of the accompanying geologic maps and columnar section. Each year the senior students in mining and geological engineering at the Montana School of Mines spend two weeks in the field where they learn the fundamentals of geologic mapping and related field studies. An additional week is spent at the school where maps are assembled, prints made, end other work is done in preparation for the writing of the report.
Geology 63: Geological Report Of Senior Field Trip, Thomas L. Wilson
Geology 63: Geological Report Of Senior Field Trip, Thomas L. Wilson
Bachelors Theses and Reports, 1928 - 1970
The field work was conducted in areas adjacent to Whitehall, Montana, as has been the custom for the past several years. Instruction in the proper use of the telescopic and open sight alidades, and the Brunton compass for surveying geologic features was given. Advantages of pacing and speedometer mapping were pointed out and used.
Some Reactions Of Chloro-Cyclo-Hexanone And Its Derivatives And The Synthesis Of 1 Chloro-2 Methyl Cyclo Hexene., Elle Bolt
Electronic Theses and Dissertations
No abstract provided.
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
University of the Pacific Theses and Dissertations
This thesis is a report of the findings of two years of part-time work on the limpets of the family Acmaedae. The major portion of the work was done on the Monterey Peninsula between Point Pines, 36° 38' 30" N. latitude, 121° 56' 00" W. longitude, and Pescadero Point 30° 33' 40" N. latitude, 121° 56' 30" W. longitude. The work on homing in Acmaea persona, artificial parthenogenesis in the eggs of Acmaea pelta, and artifical insemination of the eggs of Acmaea pelta was carried on at the Pacific Marine Station, Dillon Beach, California at 38° 14' 30" N. latitude, …
The Kerr Electro-Optic Effect In Plastic Materials Transmitting Infra-Red Radiation, James Edson Dueker
The Kerr Electro-Optic Effect In Plastic Materials Transmitting Infra-Red Radiation, James Edson Dueker
Masters Theses
"Much work has been done investigating the Kerr Electro-Optic effect and what physical properties of a substance lead to the occurrence of the phenomenon. Information now available indicates a relationship between molecular shape and orientation with the Kerr Effect, hence any added information increases the possibility for finding the exact relationship and the molecular structure of substances. The Kerr Effect, has been used in a number of applications other than for the study of molecular construction of matter. Many applications have been made to form Electro-Optic shutters. This field of work has been increased to include light flash production and …
Radioactivity Of The Pre-Cambrian Section Of The Bourbon, Missouri, Well Core By Measurement Of The Total Hard Gamma Radiation, Paul E. Damon
Radioactivity Of The Pre-Cambrian Section Of The Bourbon, Missouri, Well Core By Measurement Of The Total Hard Gamma Radiation, Paul E. Damon
Masters Theses
"In December of 1947 Mr. Robert Van Nostrand and the writer became interested in the problem of the distribution of natural radioactivity and the applications of radioactivity to geology. A cooperative survey of the literature on the subject was undertaken. Later the writer decided to follow up the survey with a research project. Consultations with Dr. Z. V. Harvalik of the Missouri School of Mines Physics Department, and Dr. E. L. Clark and Mr. O. M. Bishop of the Missouri Geological Survey, followed. The nature of the project was evolved when Dr. Clark, with the consent of the U. S. …
The Determination Of The Surface Tension Of Benzyl Ether, Sze-Kwei Min
The Determination Of The Surface Tension Of Benzyl Ether, Sze-Kwei Min
Masters Theses
"The accurate determination of surface tension is of importance in the investigation of theories of surface structure, the structure of liquids, molecular cohesion, in the study of colloids, especially in physiological work, and in various lines of technical chemistry. The two methods most commonly used for determining surface tension are the capillary rise method and the drop weight method. The theory of the former is simple, but its technique is difficult. Its use in some cases is the cause of errors as high as 30%, due to its inapplicability to certain classes of substance, and is much more sensitive to …
The Preparation, Characterization, And Thermal Decomposition Products Of Di-Tertiary Butyl-Carbonate And Tertiary Butyl-Chlorocarbonate., James Wesley Rogers
The Preparation, Characterization, And Thermal Decomposition Products Of Di-Tertiary Butyl-Carbonate And Tertiary Butyl-Chlorocarbonate., James Wesley Rogers
LSU Historical Dissertations and Theses
No abstract provided.
The Migration Of Acyl Groups In Ortho-Aminophenols., Edgar Dumont Smith
The Migration Of Acyl Groups In Ortho-Aminophenols., Edgar Dumont Smith
LSU Historical Dissertations and Theses
No abstract provided.
The Field Of Values Of A Matrix., John Cecil Currie
The Field Of Values Of A Matrix., John Cecil Currie
LSU Historical Dissertations and Theses
No abstract provided.
Dielectric And Solvent Effects On The Alkaline Hydrolysis Of Ethyl-Acetate., James Edward Potts
Dielectric And Solvent Effects On The Alkaline Hydrolysis Of Ethyl-Acetate., James Edward Potts
LSU Historical Dissertations and Theses
No abstract provided.
Fatty Acids From Muskrat Scent Glands., Homer Bennett Hix
Fatty Acids From Muskrat Scent Glands., Homer Bennett Hix
LSU Historical Dissertations and Theses
No abstract provided.
Piedmont Interstream Surfaces Of The Colorado Springs Region., Benjamin Almon Tator
Piedmont Interstream Surfaces Of The Colorado Springs Region., Benjamin Almon Tator
LSU Historical Dissertations and Theses
No abstract provided.
An Investigation Of The Toxicity Of Tung Meal., James Arthur Watson
An Investigation Of The Toxicity Of Tung Meal., James Arthur Watson
LSU Historical Dissertations and Theses
No abstract provided.
A Microwave Polarimeter, Alfred E. Schwaneke
A Microwave Polarimeter, Alfred E. Schwaneke
Masters Theses
"The dissertation on the following pages may read more like a construction article than an approach to a study of physical phenomena. If so, its purpose is clearly defined. this subject has been studied little from an experimental viewpoint, so one of the main objectives of this writing is to describe the instrument so others may read the article and reproduce this or an equivalent device without a great amount of reading and searching for information on just how to fabricate and mount the parts. No single book or article that I know of covers the inexpensive construction of such …
Reduction Of Beryllium Compounds With Magnesium, Pei Wang
Reduction Of Beryllium Compounds With Magnesium, Pei Wang
Masters Theses
"The purpose of this research was to investigate the thermal reduction of beryllium compounds and to devise a method to estimate the metallic beryllium content in the final product"--Introduction, page 1.
Geology Of The Berryman Area, Washington County, Missouri, Jack Alexander James
Geology Of The Berryman Area, Washington County, Missouri, Jack Alexander James
Masters Theses
"Purpose and scope - The are discussed in this thesis was selected because of recent exploration for lead within this region and because of the need for more detailed information of the structure and geologic history of the area. The work constitutes part of a program of geologic mapping by the Missouri Geological Survey and Water Resources to complete the mapping of a strip of quadrangles extending across the Ozark Uplift from Rolla eastward to the Mississippi River"--Introduction, page 1.
Preparation And Physical Properties Of Some Unsymmetrically Substituted Ethanes, William F. Buth
Preparation And Physical Properties Of Some Unsymmetrically Substituted Ethanes, William F. Buth
Bachelors’ Theses
Early in 1947, while investigating the potentialities of various compounds for use as liquid dielectric materials, A method was found for the preparation of unsymmetrical ditolyl ethane by a condensation method using sulfuric acid. This material was thought to have excellent dielectric characteristics so it was prepared and tested. The tests were favorable enough, to warrant further investigation into the field of the unsymmetrical ethanes. Being aware of the physical properties required for a good liquid dielectric; it was proposed to prepare a few of the related compounds for which no data was known to exist and to select those …
A Study Of The Prussian Blue Test For Nitrogen, Marilyn M. Erickson
A Study Of The Prussian Blue Test For Nitrogen, Marilyn M. Erickson
Bachelors’ Theses
The problem of obtaining good nitrogen tests on all types of organic compounds interested the author as a result of past experience in the identification of organic compounds.
The practical application of a positive solution to this problem would be an aid to the students of characterization of organic compounds. It is necessary for them to make an elementary analysis in order to determine the class into which the unknown compound belongs. A nitrogen test which will give definite results will eliminate any doubt as to the presence of nitrogen.
The Molecular Weight Of Liquids In The Liquid State, Catherine O'Toole
The Molecular Weight Of Liquids In The Liquid State, Catherine O'Toole
Bachelors’ Theses
A Thesis Submitted to the Faculty of the College of Liberal Arts of Marquette University in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science, Milwaukee, Wisconsin
The Trivalent State Of Uranium, Virginia M. Kubacki
The Trivalent State Of Uranium, Virginia M. Kubacki
Bachelors’ Theses
Besides being of practical importance in the preparation of compounds, the valence of an element is of theoretical significance because it is a clue to the electronic structure of the atom. In the case of elements which have several valences the relative stability and the means of changing from one state of oxidation to another are also important.
Uranium has valences of three, four, five, and six, but the reactivity of the trivalent uranium ion causes difficulties in the preparation of its compounds. Dr. Scott L. Kittsley in his investigation of the trivalency of uranium found that it is possible …
The Effect Of Metallic Fluorides On Oleic Acid At Elevated Temperatures, Lorraine W. Dupuis
The Effect Of Metallic Fluorides On Oleic Acid At Elevated Temperatures, Lorraine W. Dupuis
Bachelors’ Theses
The problem of finding the effect of metallic fluorine compounds on oleic acid at elevated temperatures was presented in connection with the thesis of J.J. Wocasek of Marquette University. Doctor Wocasek had used fluorine compounds as catalysts in a.n attempt to find a substitute for tung oil. He used the fluorides as catalysts in the esterification of glycerol with unsaturated acids.
A Phase Of The Upper Devonian Of Western Highland County, Virginia, Helen Pulver Foreman
A Phase Of The Upper Devonian Of Western Highland County, Virginia, Helen Pulver Foreman
Honors Papers
This paper is a study of the Brallier and Chemung formations of west Highland County, Virginia. The limits of the Brallier formation are determined on the basis ot faunal and lithological evidence, and correlations made with formations in New York, Pennsylvania, Maryland and West Virginia.
The field work was carried on during the latter part of the summer of 1947 and the identification and correlations worked out in the winter of 1947 and the spring of 1948.
Petrology Of The Upper Marietta And Hundred Sandstones In Southeastern Ohio, Wayne Dudley Martin
Petrology Of The Upper Marietta And Hundred Sandstones In Southeastern Ohio, Wayne Dudley Martin
Graduate Theses, Dissertations, and Problem Reports (ETD)
A petrographic study was made of two Lower Permian (Dunkard Series) sandstones in southeastern Ohio. The sandstone members with which the investigation was concerned are the Upper Marietta sandstone and the Hundred sandstone. The study was made in order to determine the origin of the sandstones and the practicability of applying geologic methods to the grindstone industry. The results of the study indicate that although some of the constituents of these sandstones were derived from igneous and sedimentary source rocks, a relatively large amount of material was derived from metamorphic rocks. The detritus was transported from the east and deposited …
Preparation And Properties Of Derivatives And Ketene Dimers From Five Cyclohexyl-Substitued Fatty Acids, Gilbert Wayman Senter
Preparation And Properties Of Derivatives And Ketene Dimers From Five Cyclohexyl-Substitued Fatty Acids, Gilbert Wayman Senter
Tennessee State University Alumni Theses and Dissertations
No abstract provided.