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Articles 7111 - 7140 of 7311

Full-Text Articles in Physical Sciences and Mathematics

Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson Jan 1961

Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson

Masters Theses

"Presentation of Design.

This thesis presents the design for a combination normal incidence - grazing incidence spectrograph for use in the vacuum ultra-violet and soft x-ray portions of the electromagnetic spectrum. The instrument described was designed and constructed as a partial fulfillment of the requirements for the master of science degree from The Missouri School of Mines and Metallurgy.

Design Details.

Included in this thesis is a complete set of all detailed drawings and information required for either effective use or duplication of this instrument. Complete discussions of the design, operating procedures, difficulties encountered during construction and suggestions for future …


Occurrence Of Mineralized Ground Water In Southern St. Louis And Jefferson Counties, Missouri, Willard Glennon Owens Jan 1960

Occurrence Of Mineralized Ground Water In Southern St. Louis And Jefferson Counties, Missouri, Willard Glennon Owens

Masters Theses

"Mineralized ground water occurs at some localities in southeastern St. Louis and northern Jefferson counties, Missouri. This water is usually undesirable and is detrimental to development of ground water resources.

Water well records in the offices of the Missouri Geological Survey and Water Resources provided data for a study of structure, lithology and occurrence of ground water. Water well drillers and property owners were interviewed to obtain additional information concerning drilling problems and quality of water.

Geologic cross-sections, subsurface contour maps and isochlorinity maps aided the study of lithology, structure and areal distribution of mineralized ground water. Relationship is suggested …


Oxygen Permeability Of Free Paint Films, Janice I. Kellerman Jan 1960

Oxygen Permeability Of Free Paint Films, Janice I. Kellerman

Masters Theses

"As early as the mid 1800’s investigations were performed on the gas passage through rubber, but it is only comparatively recently that plastic polymeric materials have come into prominence. One interesting aspect of much experimentation begun was that of permeability, and it was soon evident that, in general, polymeric materials have extremely low permeability of gases. This is, in essence, the basis for use of plastics as packaging materials, balloons, and in many other designs and fabrications where it is desirous and/or necessary to exclude air.

There are several variables which must be taken into consideration in the evaluation of …


Cyclic Sedimentation Of The Upper Fayetteville Formation, Faramarz Frouzan Jan 1960

Cyclic Sedimentation Of The Upper Fayetteville Formation, Faramarz Frouzan

Masters Theses

"In the past decade considerable interest has developed in the geology of the Boston Mountain area of northern Arkansas. This has been due to exploration for oil and gas in-the area and the related desire to know more about the structure and stratigraphy of the region. Principal work has been done by the University of Arkansas, the United States Geological Survey, and oil companies. This study involves only one of the formations making up the geologic column in the Boston Mountains, the Upper Mississippian (Chesterian Series) Fayetteville Formation.

Portions of the upper part of the Fayetteville Formation of northwestern Arkansas …


Comparative Petrographic, Petrochemical And Spectrographic Analyses Of The Precambrian Granitic Rocks Of Southeastern Missouri, Eva B. Kisvarsanyi Jan 1960

Comparative Petrographic, Petrochemical And Spectrographic Analyses Of The Precambrian Granitic Rocks Of Southeastern Missouri, Eva B. Kisvarsanyi

Masters Theses

"Petrographic, petrochemical and spectrographic studies were completed on selected Precambrian granitic rock samples from Southeastern Missouri. This investigation contributes to a more detailed knowledge of the Precambrian granitic rocks of this part of the state.

Petrographic analysis of forty-four thin sections of granitic rocks from the St. Francois Mountains area revealed six different granite types. These have been named the Fredericktown, Knoblick, Doerun, Graniteville, Klondike and Silvermine granites. These rocks form a large part of a composite batholith. More than one period of granitic intrusion is represented, but differentiation also contributed to the formation of this diversity of the rocks. …


The Dielectric Strength Of Some Anti-Corrosive Paints, John Harvey Gustafson Jan 1960

The Dielectric Strength Of Some Anti-Corrosive Paints, John Harvey Gustafson

Masters Theses

"Metals undergo chemical reaction with nonmetallic elements of their surroundings to produce compounds which are either oxides or salts. These corrosion products, as they are called, may accelerate, impede, or have no influence on the course of further corrosion. It is unfortunate that iron, the metal of greatest use to man, receives very little protection from its corrosion products. There are no easy or inexpensive means of prevention of this corrosion and at best the reactions can only be controlled. One method of control is the use of anti-corrosive paints. Their protection is produced by placing an inert, continuous, and …


Water Resources Development -- An Analysis Of Economic Justification Practices Of The Corps Of Engineers, Kerwood W. Barrand Jan 1960

Water Resources Development -- An Analysis Of Economic Justification Practices Of The Corps Of Engineers, Kerwood W. Barrand

Masters Theses

"Presented herein is a brief analysis of the economic justification practices of the Corps of Engineers as commonly implemented in proposals concerning water resources projects. Where applicable, recommended methods are compared to similar methods advocated for, and accepted by, private engineering firms in similar situations.

The major problem exists in the lack of a profit motive in programs undertaken with the use of public funds. However, a profit can be said to have been realized in public works programs if the total benefits of the programs to all the people exceed the costs of these programs and, further, if the …


Mississippian Bioherms Of Southwestern Missouri And Northwestern Arkansas, Arthur R. Troell Jr. Jan 1960

Mississippian Bioherms Of Southwestern Missouri And Northwestern Arkansas, Arthur R. Troell Jr.

Masters Theses

"Lenticular bodies of massive limestone, flanked by thin crinoidal beds, crop out in southwestern Missouri and northwestern Arkansas. They are within the St. Joe limestone of the Lower Mississippian.

Strata underlying these bodies typically are down-warped, those on the flanks lapping against, finally passing completely over the limestone core. Dips away from the “reef” are commonly around 5 degrees, but reach as much as 30 degrees. Conglomeratic detritus, originating from the core, occurs in flanking beds at their contact with it.

Thin sections of these masses show no more than 15 per cent of the limestone to consist of fossil …


The Geology Of The Uranium-Vanadium Deposit Of The Diamond No. 2 Mine, Near Gallup, New Mexico, Raymundo J. Chico Jan 1959

The Geology Of The Uranium-Vanadium Deposit Of The Diamond No. 2 Mine, Near Gallup, New Mexico, Raymundo J. Chico

Masters Theses

"This thesis deals with the geology of the Diamond No. 2 Mine east of Gallup, New Mexico. The sedimentary rocks ranging from Triassic to Cretaceous are described in relation to the local stratigraphic setting.

The Dakota formation is the host rock of the ore deposit, and was therefore studied in detail with regard to its petrographic nature and the sedimentary structures such as slumping. Special emphasis is placed on the study of the relationships between the uranium and vanadium deposit and the host rock. Geometrical and geochemical criteria are offered in order to explain the local genesis of the ore …


A Study Of The Genesis Of The Krueger Zinc Deposit And The Near-By Barite Deposits Of The Potosi Quadrangle, Washington County, Missouri, Attilio Ligasacchi Jan 1959

A Study Of The Genesis Of The Krueger Zinc Deposit And The Near-By Barite Deposits Of The Potosi Quadrangle, Washington County, Missouri, Attilio Ligasacchi

Masters Theses

This thesis deals with the study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri.

The rocks outcropping in the quadrangle embrace Pre-Cambrian and Lower Paleozoic formations, the Potosi and Eminence being the most important formations with regard to the studied deposits.

The few structures present in the area of the vertical type and are more abundant in the southern part of the quadrangle.

Special emphasis is placed on the relationships between the barite, the associated sulfides, and the host rock.

Geometric and geochemical criteria are studied in detail …


Geology Of The Northeast Portion Of Des Arc Quadrangle, Iron And Madison Counties, Missouri, Wesley Dean Weixelman Jan 1959

Geology Of The Northeast Portion Of Des Arc Quadrangle, Iron And Madison Counties, Missouri, Wesley Dean Weixelman

Masters Theses

"A geological investigation of the northeast portion of Des Arc Quadrangle in southeast Missouri was completed during the summer of 1958. Exposed Precambrian rocks include, from oldest to youngest, undifferentiated purple rhyolites with an interlayered tile-red rhyolite, andesine basalts with interlayered tuff, and an andesite. A diabase dike intrudes the lower purple rhyolites. The purple rhyolites account for about ninety-seven percent of the Precambrian exposures. Exposed Paleozoic rocks belong to the Bonneterre formation and include three members: (1) Lower Brown dolomite; (2) Light Gray dolomite with Tom Sauk limestone and arkosic sandstone and conglomerate facies; and (3) Upper Brown dolomite. …


Geology Of The Copper Deposits In The Eminence Region, Shannon County, Missouri, Lanny Lee Evans Jan 1959

Geology Of The Copper Deposits In The Eminence Region, Shannon County, Missouri, Lanny Lee Evans

Masters Theses

"Copper has been known to occur in Shannon County, Missouri since the early 1830's. A number of small deposits in an area around Eminence has been worked intermittently up to the present day. Little detailed geologic information is available on these deposits. The geology of the Eminence region consists of Precambrian rhyolite porphyry knobs projecting through dolomites and sandstones of Upper Cambrian and Ordovician age. A conglomerate of limited horizontal extent overlying the Precambrian is found at certain localities within the region. The only structures noted are the structural highs formed where the Paleozoic sediments lap upon the knobs. The …


A Review Of Fossilization Processes In Different Sedimentary Environments (With Special Reference To The Time Factor Of Deposition Of Ore Minerals Associated With Fossil Material, In Particular The Coprolitic Phosphate Deposits), Giovanna Reggiori Ligasacchi Jan 1959

A Review Of Fossilization Processes In Different Sedimentary Environments (With Special Reference To The Time Factor Of Deposition Of Ore Minerals Associated With Fossil Material, In Particular The Coprolitic Phosphate Deposits), Giovanna Reggiori Ligasacchi

Masters Theses

"This thesis offers a cross/section through some principal fossilization processes involving organic matter (animals and plants) during and after sedimentation. The influence of different environments during fossilization is considered. The chemical composition of some classes of living invertebrates and plants is compared with the chemical composition of same organisms as found in consolidated sediments as fossils.

Some literature on carbonates, oxides, silicates, phosphates, and sulphides in fossils is reviewed with particular attention to those instances where the fossils are associated with ore minerals. Special consideration is given to the occurrence and composition of fecal matter in recent and consolidated sediments. …


A Cell-Center Distribution Function For Liquid Argon, Arthur M. Soellner Jan 1959

A Cell-Center Distribution Function For Liquid Argon, Arthur M. Soellner

Masters Theses

"A theoretical expression for a cell-center distribution function was developed using a fundamental statistical mechanics approach. A free volume picture of the liquid was used with each atom located in a spherical cell formed by its nearest neighbors. Cell-center density distribution curves were obtained for liquid argon for temperatures of 84.4°K, 91.8°K, 126.7°K, 144.1°K, and 149.3°K and for argon gas at 149.3°K, and a comparison made with the experimental atomic distribution curves obtained by Eisenstein. For the first two temperatures a sharper, more definite structure was predicted by the cell model. For the remaining four temperatures, with the assumptions made, …


Geology Of The Annapolis Area, Iron County, Missouri, Richard A. Zimmermann Jan 1959

Geology Of The Annapolis Area, Iron County, Missouri, Richard A. Zimmermann

Masters Theses

"The objectives of this investigation include the following: (1) to map the distribution of the igneous and sedimentary rocks, (2) to investigate the structure and lithology of these rocks and to determine their sequence, (3) to determine the stratigraphic position of the sedimentary rocks relative to known Missouri formations, (4) to determine the igneous rock types, and (5) to investigate the distribution and occurrences of economic minerals"--Purpose of Investigation, Page 6.


A Preliminary Search For Subionizers, Joseph B. Hughes Jan 1959

A Preliminary Search For Subionizers, Joseph B. Hughes

Masters Theses

"A number of physicists of recent years have been attempting to explain the basic nature of the universe in terms of particles. A few particles have been predicted theoretically, and some of these, along with many others have appeared experimentally, Searches for them have presented some interesting experimental problems and brought forth some invaluable experimental apparatus. One of these devices is the Wilson cloud chamber, with which this thesis is concerned.

Of the particles that have been discovered thus far, only the electron and the proton appear to be stable. The rest ultimately decay by the emission of photons and …


Reaction To 1-Bromo-2, 3-Epoxybutane With Phenol In The Presence Of Boron Trifluoride, Robert F. Bridger Jan 1959

Reaction To 1-Bromo-2, 3-Epoxybutane With Phenol In The Presence Of Boron Trifluoride, Robert F. Bridger

Masters Theses

"It is the purpose of this investigation to study the reaction of phenol with 1-bromo-2,3-epoxybutane in the presence of boron trifluoride and to identify the reaction products in order to gain information which will be helpful in understanding the mechanism of the reaction"--Introduction, page 3.


The Use Of Chelating Agents In Inorganic Analysis, Richard K. Vitek Jan 1958

The Use Of Chelating Agents In Inorganic Analysis, Richard K. Vitek

Masters Theses

"The objectives of this investigation were; (1) to improve the existing gravimetric method of analysis for palladium with dimethylglyoxime by adding EDTA to the solution to chelate interfering metal ions: (2) to develop a new and better gravimetric method of analyses for palladium with a different organic ligand and employing a chelating agent such as EDTA or NTA to remove the interference of foreign ions"--Introduction, page 2.


Investigation Of The Geometric Effects Connected With The U-Effect-Iii, Anthony Edward Hoffman Jan 1958

Investigation Of The Geometric Effects Connected With The U-Effect-Iii, Anthony Edward Hoffman

Masters Theses

"Statement of Problem: The investigation reported herein is of the dependence of the voltage output due to the U-Effect-III upon the geometry of the tube. The geometry of the tube is defined to include the inner diameter of the tube as well as the size and number of the mercury and electrolyte drops. The previous experimental study of the effect did not include an investigation of the effects of the geometry of the tube, as defined above, on the voltage output. It seems that information as to the dependence of the output voltage on the geometry of the tube would …


Detection Of Buried Basement Highs By Airphoto Drainage Pattern Analysis, Reynolds And Wayne Counties, Missouri, Papken Aram Zarzavatjian Jan 1958

Detection Of Buried Basement Highs By Airphoto Drainage Pattern Analysis, Reynolds And Wayne Counties, Missouri, Papken Aram Zarzavatjian

Masters Theses

"Purpose and Scope: The purpose of this study is to determine if it is possible to detect buried Precambrian igneous hills in Wayne County and the larger part of Reynolds County in southeast Missouri by the use of aerial photo drainage pattern analysis.

The St. Francis Mountains are located in southeast Missouri. They form a part of the Precambrian basement complex, and have been exposed at the surface by the erosion of the lower Paleozoic sediments which covered them. Some of the hills which make up the St. Francis Mountains are exposed to a great degree, while others still have …


An Application Of Cathodic Sputtering To The Etching Of Metallographic Specimens, Robert Ruch Jan 1958

An Application Of Cathodic Sputtering To The Etching Of Metallographic Specimens, Robert Ruch

Masters Theses

"The U. S. Bureau of Mines at Rolla, Missouri has for some years been conducting research on manganese-copper alloys. The study of the physical metallurgy of these alloys -- dissimilar metal couples -- has always been complicated by the difficulty of satisfactorily etching this material. It was felt that by introducing a new etching technique, cathodic bombardment, satisfactory etching might be accomplished. On this basis the following research program was proposed:

1) To survey the present state of art of cathodic etching, etching by means of cathodic sputtering;

2) To design and construct suitable equipment for the experimental study of …


Paragenesis Of The Minerals In The Einstein Vein Madison County, Missouri, Robert P. Stevens Jan 1958

Paragenesis Of The Minerals In The Einstein Vein Madison County, Missouri, Robert P. Stevens

Masters Theses

"Selection of the Problem: The mineralogical problem of determining the paragenetic sequence of minerals in the Einstein vein, Madison County, Missouri, was suggested by Dr. O. R. Grawe, who previously had supervised a thesis by Joel Pomerene dealing with the geology of the area. Although considerable attention has been given to the mineralization along the vein, a specific study of the paragenetic relations has not been made. Paragenesis has, however, been discussed by others in papers dealing with the geology of the area. Such a study is extremely important in the establishment of a hypothesis of origin, and hence, an …


A Study Of Background In A Long Sensitive Time Wilson Cloud Chamber, Donald A. Rinker Jan 1958

A Study Of Background In A Long Sensitive Time Wilson Cloud Chamber, Donald A. Rinker

Masters Theses

"A long-sensitive time Wilson Cloud Chamber has been built and tested. A usable sensitive time of 2.5 seconds has been achieved by the use of a system of five expansion valves, the first three of which are used to obtain the sensitive time and the final two to continue the expansion at a supersaturation slightly less than critical in order to allow all droplets formed to grow in size and fall into the liquid. This system of continued expansion, coupled with delayed recompression, has been proved to reduce the background density in the chamber to an average operating value of …


Iterative Solutions Of Kirkwood's Integral For Liquid Argon, Eugene D. Fabricius Jan 1958

Iterative Solutions Of Kirkwood's Integral For Liquid Argon, Eugene D. Fabricius

Masters Theses

"A liquid or a dense gas may be regarded either as a very imperfect gas in which multiple collisions are frequent or as a distorted crystal in which the long range order has been lost. The crystal-like approach has not led to formal solutions, but it has led to several approximate treatments which can be used to give numerical results.

The two main types of approaches which have been used are: the cell theories, in which the liquid is regarded as a distorted crystal with one molecule located at or near each lattice point; and the hole theories, in which …


An Improved Long Sensitive Time Wilson Cloud Chamber, Clarence W. Mettenburg Jan 1958

An Improved Long Sensitive Time Wilson Cloud Chamber, Clarence W. Mettenburg

Masters Theses

"The discovery of numerous new particles in recent years such as mesons and hyperons causes one to speculate about the possible existence of still other particle types….

A cloud chamber seems to be a most suitable means of detecting particles ionizing less than the minimum ionization of the electron because it is capable of detecting almost all the ions produced. The cloud chamber makes it possible to study not only a wide range of ionization but also many fine details of track structure which would go unnoticed by other means of detection….

With the information and experience gained by the …


Liesegang Rings, Robert Edward Young Jan 1958

Liesegang Rings, Robert Edward Young

Masters Theses

"Although the discovery of the "Liesegang Rings" phenomenon was made sometime before 1855 little was done in the way of study or experimentation until 1896 when R. E. Liesegang discovered that if a crystal or strong solution of silver nitrate is added to a gelatin gel containing dilute potassium chromate, the resulting precipitate of silver chromate is not continuous, as might be expected, but forms a discontinuous periodic pattern. This pattern follows a geometric progression law, xn = akn, where xn is the position of the nth ring, and a and k are constants. K …


Permeability Study Of Algal Reef Beds Within The Bonneterre Formation, National Mine, St. Francois, Missouri, Bobbie L. Perry Jan 1958

Permeability Study Of Algal Reef Beds Within The Bonneterre Formation, National Mine, St. Francois, Missouri, Bobbie L. Perry

Masters Theses

"The Missouri "Lead Belt" comprises approximately 50 square miles, centering around the town of Flat River, in St. Francois County. Missouri. This district has been producing lead for more than 200 years, the total production being at least 8,000,000 tons of lead, valued at more than $1,000,000,000. For many years, the annual production of the district has been at least one-fourth of the total production in the United States.

An excellent description of the geology of this area was published recently by Ohle and Brown in 1954.

The ore consists principally of galena which is disseminated within the Bonneterre formation …


The Phosphoria Formation Of The Northeastern Big Horn Basin, Wyoming, William A. Beatty Jan 1957

The Phosphoria Formation Of The Northeastern Big Horn Basin, Wyoming, William A. Beatty

Masters Theses

"Purpose and Scope. — The Phosphoria formation of the northern Rocky Mountains of the United States has received considerable attention from geologists because of its important reserves of phosphate and petroleum. In the Big Horn Basin of Wyoming, however, still more work is needed to compile the information necessary for a complete understanding of the facies changes exhibited by this formation.

The purpose of this paper is two-fold: first to present a description of the lithology and the paleontology of the Phosphoria formation in the northeast part of the Big Horn Basin, and secondly to show the stratigraphic relationship of …


Internal Friction In Manganese Copper Alloys, William Paul Dixon Jan 1957

Internal Friction In Manganese Copper Alloys, William Paul Dixon

Masters Theses

"The study of the physical properties of the manganese-copper alloys is an intriguing one. These alloys show promise of usefulness in instances in which high internal friction is needed to reduce the noise and vibrational stresses at resonant frequencies of a part of a machine. The purpose of this study has been to learn more about the internal friction of manganese-copper alloys as a function of temperature, stress amplitude, frequency, time, and past history of the specimen. From this information the mechanism for absorption of vibrational energy is proposed, or at least some progress has been made toward its determination. …


Some Thermodynamic And Structural Properties Of A Linear Chain Of Atoms, And Extension Of The Model To Two- And Three-Dimensional Cases, Hari Gopal Mukerjee Jan 1957

Some Thermodynamic And Structural Properties Of A Linear Chain Of Atoms, And Extension Of The Model To Two- And Three-Dimensional Cases, Hari Gopal Mukerjee

Masters Theses

"An attempt has been made in the present work to derive some thermodynamic and structural properties of a linear chain of atoms (under somewhat idealized conditions) moving in the fields of nearest neighbours and assuming a parabolic well in the interaction of pairs within the range of relative movements. The equation of state and other formulas derived are applicable only to the linear model which could be considered as a simplified form of one-dimensional crystals in the form of chain-like molecules of rubber-like substances. An attempt has also been made to extend the model to two- and three-dimensional cases"--Introduction, page …