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The Partition Function Of Silver, Ralph H. Lilienkamp

Masters Theses

"The study of the thermodynamic properties of solids at low temperatures has shown that most theories either break down or become too cumbersome.

A theory based upon a crystal lattice of atoms gives the best physical picture of a solid. Fisher has developed partition functions from this theory for the simple cubic, body-centered cubic, and the face-centered cubic lattices. In his paper Fisher gave three partition functions of increasing complexity and accuracy for each of the three lattices. In this paper the three partition functions for a face-centered cubic lattice shall be applied to silver and compared.

The Helmholtz free …

4-Benzoyl-4-Methyl-1, 2-Epoxypentane, An Attempted Synthesis, Robert L. Snell

Masters Theses

"The object of this research was to prepare first the simplest homologue of the epoxy-ketone considered by Russell to have been his product. If this homologue, 4-benzoyl-4-methyl-1,2-epoxypentane, could be prepared and caused to form a cyclic derivative of the type given by 1,4-diketones with 2,4-dinitrophenylhydrazone, the organic chemist would be given a new approach to substituted 1,2-diazines as well as a previously unreported reaction of the epoxide grouping. If this reaction could be made to occur, other epoxides of this series would be prepared and treated in the same manner.

It was decided that the shortest route to 4-benzoyl-4-methyl-1,2-epoxypentane would …

A Study Of Temperature Effect On Adsorption Chromatography., Lie Tien Chang

LSU Historical Dissertations and Theses

No abstract provided.

Part I: The Addition Of Diphenylketene To Ortho-Benzoquinone. Part Ii: Diazoketones As Reagents For The Identification Of Organic Acids. Part Iii: The Bromo-2-Nitrobenzoic Acids., Joseph Martin Dechary

LSU Historical Dissertations and Theses

No abstract provided.

Bridge Measurements Of The Equivalent Electrical Characteristics Of Selenium Rectifiers., Allan Walter Mcdonald

LSU Historical Dissertations and Theses

No abstract provided.

The Reaction Of Organomagnesium Compounds With Triketones., Reuben F. Miller

LSU Historical Dissertations and Theses

No abstract provided.

A Special Study Of The Alpha-Chlorinated Toluenes And Their Mono Deuterium Derivatives., Stuart Baker Eglin

LSU Historical Dissertations and Theses

No abstract provided.

Chromatography With Aqueous And Polar Solvents., Mary Veronica Drawe

LSU Historical Dissertations and Theses

No abstract provided.

The Theory Of Fractional Solvent Extraction And Its Application To Creosol Separation., Ada Lorine Ryland

LSU Historical Dissertations and Theses

No abstract provided.

Geochemical Prospecting Applied To The Illinois-Kentucky Fluorspar Area, Matthew Peter Nackowski

Doctoral Dissertations

"This study was completed to determine whether geochemical methods of prospecting could be applied to the search for fluorspar deposits in the Illinois-Kentucky fluorspar district.

During the course of the study, aspects of the geochemical cycle of fluorine under the climatic environment encountered were noted in the zone of weathering.

The Illinois-Kentucky fluorspar district supplies a large portion of the fluorite consumed in the United States. The producing deposits are of two geologic types. The vein deposits occur as nearly vertical tabular lenses or pods which occupy fractures. These deposits may reach the bedrock surface, but in any case, the …

Montan Wax From California Lignites, Robert John Kvick

University of the Pacific Theses and Dissertations

Montan wax has been extracted from the lignite deposits of Germany since the early part of the twentieth century, The wax was named by von Boyen (1901), The word Montan is derived from the Latin term montanus meaning "of a mountain," The wax has found extensive uses in polishes, insulating materials, candles, explosives, and special applications in the rubber industry, The increased demand for waxes for industrial uses and the limited supply of domestic origin has made the study of the sources and characteristics of domestic waxes desirable, California lignite has been shown to be a valuable source of Montan …

A New Basic Copper Phosphate Mineral From Santa Rita, New Mexico, David B. Givens

Earth and Planetary Sciences ETDs

Supergene minerals are not common, nor are they rare at Santa Rita, New Mexico. Kerr (1950,307) reports the presence of cuprite, melaconite, native copper, chrysocolla, machite and azurite. There is also smithsonite present.

The physical appearance of the mineral, coupled with preliminary determinations of the indices of refraction, gave a rough correspondence with dihydrite (Larson and Berman, 1934, 135). However, enough discrepancy existed to warrant taking powder and Weissenberg X-Ray pictures. From these it was evident immediately that the specimen was a new mineral species.

Investigation Of Penetrating Cosmic-Ray Showers In Water, George William Rollosson

Physics & Astronomy ETDs

In this investigation, some of the properties of the radiation which produces penetrating showers in its passage through matter are studied. Geiger techniques are used to measure the average distance over which the neutral radiation produces one penetrating shower. This distance, called collision length, is measured in water...

The collision length, on the other hand, is measured by placing the material near the apparatus and measuring the mean distance in which one shower is produced and eliminating from the observation any penetrating showers which may be produced subsequently either (a) by the original particle or (b) by the secondaries from …

An Experimental Investigation Of The Dead Time Of Geiger-Mueller Counters, Peter H. Jessner

Physics & Astronomy ETDs

As ever more sensitive and precise experiments are being performed with Geiger Counters, especially in cosmic ray research, the resolving power of these instruments assumes an ever increasing importance. With the present perfection of electronic circuitry, this resolving time has become largely a function of the dead time of the Geiger counter tube itself. It was therefore proposed to investigate methods of reducing this dead time. Only self-quenching counter tubes had to be considered in this connection since the dead time of all other types of Geiger counters is inherently longer.

A Sensitive Electronic Photometer Employing Negative Feedback, John Lee Pack

Physics & Astronomy ETDs

Purpose of the Instrument

The instrument to be described in these pages was tentatively intended to be used for the purpose of scanning the night sky automatically for investigations of the zodiacal light. It was to detect light below the noise level of a photomultiplier tube, to have linearity up to signals 100 times greater than the noise level, and to have a response time of about 10-4 seconds.

The Elastic Scattering Of Deuterons By Deuterons, Richard John Runge

Physics & Astronomy ETDs

The concern of this work is the calculation of elastic scattering of deuterons by deuterons. The solution of the problem will be given in the usual center of mass system of coordinates, the conversion of results from this to the laboratory system being standard. Since the deuteron itself consists of a neutron and a proton, the problem is thus one of four bodies. The nuclear three body problem of the scattering of a neutron by a deuteron has been treated by previous authors and we will have occasion to employ methods used by these authors extending them to the four …

Enrichment Of Tin Activity Through The Szilard-Chalmers Separation, Herta W. Spano

Chemistry and Chemical Biology ETDs

It was the purpose of this investigation to utilize the Szilard-Chalmers reaction in order to prepare tin solutions of high specific activity.

Tetraphenyl tin was chosen for the target compound. It is a white, crystalline solid of excellent thermal stability. No data have been reported in the literature on the rate of exchange between inorganic forms of tin and tetraphenyl tin but it seemed highly probable that this exchange would be very slow. Tetraphenyl tin is soluble in various organic solvents but insoluble in water, and this suggested solvent extraction as a possible means of separation of the activated tin …

Solubility Product Constants Of The Metallic Sulfides, Marvin Bernard Gordon

Theses and Dissertations

A survey of the chemical literature revealed a lack of agreement in the values reported by various investigators for the solubility product constants of the metallic sulfides. The object of this thesis was to obtain a reliable set of solubility product constant values for the metallic sulfides by means of thermodynamic calculations. Of considerable importance in calculating the values of the solubility product constants of the metallic sulfides is the value of the standard free energy of formation of the sulfide ion. A critical review of the values that have been reported by various investigators for this constant , including …

Derivatives Of M-Xylene, Henry J. Muller

Chemistry and Chemical Biology ETDs

Since m-xylene of 95-98% purity has recently become available from petroleum, this is an appropriate time to prepare an examine its derivatives. Isophtalic and m-toluic acids can be prepared from the hydrocarbon. The purpose of this work was to prepare imidazolines from these acids

Geology Of The Pre-Cambrian Rocks Of The Northern End Of The Sandia Mountains, Bernalillo And Sandoval Counties, New Mexico, Philip T. Hayes

Earth and Planetary Sciences ETDs

Most of the pre-Cambrian metamorphic rocks of the northern end of the Sandia Mountains crop out on and adjacent to a prominent spur, called the Rincon, which lies to the west of the main mountain mass. These metamorphic rocks which consist of quartzite, schist, and greenstone are considered to be the result of moderate regional metamorphism of clastic sedimentary rocks and possibly some basic flows and stills. These rocks are here tentatively named the Juan Tabo sequence and are Archeozoic or early Proterozoic age. The Sandia granite, which lies to the east and south of the Juan Tabo sequence, was …

A Differential Electronic Photometer And Polariscope With Negative Feedback, William Rogers

Physics & Astronomy ETDs

In connection which a program of research in the physics of the atmosphere, a need has arisen for a sensitive differential photometer which would be adaptable to balloon-borne operation. This paper describes a prototype of such an instrument. The present photometer is constructed for preliminary investigations to be carried out in the laboratory, but with light weight components used in the design except for the power supply and the main structural frame. Consideration is given to these latter features to the extent that the entire equipment is designed for operation from power sources which can be directly replaced by small …

An Experimental Investigation Of A Light Weight High Voltage Power Supply, James F. Tribby

Physics & Astronomy ETDs

This investigation is directed toward the development and design of an electronic high-voltage power supply. The method consists of obtaining a direct current of low intensity by periodically charging by means of a primary battery a group of capacitors in parallel combination and discharging them electronically in series. A stimulus to this investigation is provided by the need for a light-weight electronic current source operating at moderately high voltages which is stable and capable of maintaining a constant current of low intensity over a wide range of variation of the potential from a primary battery. In addition, a power supply …

The Variation Problems Of Weierstrass-Bliss And Radon, Douglas M. Gragg

Mathematics & Statistics ETDs

Problems of the Calculus of Variations are generalizations of the familiar minimum problems treated in the differential calculus. The relationships between the ordinary minimum problems of the calculus and the generalizations dealt with in the Calculus of Variations is possibly best seen by examining the general Hilbert-Moore minimum problem, and the special examples of such problems formulated in the table below.

The Chemical Characteristics Of 8.0-Day I131 Produced By The Beta Decay Of 25-Minute Te131 In Organic Liquids, Francis J. Keneshea Jr.

Chemistry and Chemical Biology ETDs

In 1934 Szilard and Chalmers found that a large fraction of the radioactive iodine produced in the thermal neutron irradiation of ethyl iodide could be extracted from the irradiated material. The procedure followed was to add a trace of carrier iodine to the irradiated liquid, extract the iodine with an aqueous solution of a reducing agent and precipitate the iodide as silver iodide. The silver iodide precipitate obtained in this manner contained a large fraction of the iodine activity (25-minute I¹²⁸), at a high specific activity. Since ethyl iodide is not soluble in water and hence is not …

The Diophantine Equation, Frederic C. Barnett

Mathematics & Statistics ETDs

In the first part of Chapter II of this thesis a study is made of these surfaces F_n. In the second part of Chapter II, several differential geometric properties of F_n are adduced, and again, an attack based on certain of these is shown to lead to the very theorem we seek to prove. Finally, we obtain three geometrical implications of the assumption that an integral triad exists on F_n suggesting new lines of attack on the theorem of Fermat.

Inverse Problems Of Hamel-Type., Robert G. Schrandt

Mathematics & Statistics ETDs

The formulation and discussion of the simplest (fixed) end point direct problem of the calculus of Variation is a necessary preliminary to attack on the inverse problems considered in Chapters II and III of this thesis. Since the plane problem is already comprehensively treated in the literature, only enough of its theory is developed here to render intelligible to the reader the inverse problems studied in the sequel.

Anisotropism In Garnets, Arthur B. Merkle

Earth and Planetary Sciences ETDs

Six anisotropic garnets are studied by optical, thermal, and X-ray diffraction methods in an attempt to determine the cause of anisotropism. The garnets are all ungrandites with compositions ranging from chromian grossularite to nearly pure andradite, the composition having been estimated from indices of refraction and unit cell dimensions. In all cases the birefringence is 0.004 or less. Both positive and negative uniaxial and biaxial figures are sometimes observed. Heating of the garnets at 900°C for periods of 96 to 264 hours reduced the anisotropism in five of the six garnets studied; this observation is in agreement with previously reported …

An Experimental Determination Of The Distribution Of Core Location Of Extensive Air Showers, Jerre P. Moore

Physics & Astronomy ETDs

It is the purpose of this paper to investigate the distribution of the core location of extensive air showers striking near an array of liquid scintillators.

The Kinetics Of The Exchange Between Benzyl Iodide And Iodide Ion, Paul Stillson

Chemistry and Chemical Biology ETDs

A general form of an ion-molecule replacement reaction occurring at a saturated carbon atom may be represented by

Y^-+R-X⇋Y-R+X^-

where Y- is a negatively charged atom or group which can replace an atom or group X in the molecule R-X and R is any organic radical which is saturated at the point of attachment of X. The mechanisms which have been postulated for the above reaction may be divided into the following two groups: (1) those which assume primary dissociation of the neutral organic reaction into ions as the rate-determining step; (2) those which postulate the formation …

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.