Physical Sciences and Mathematics Commons^™

Structure And Stratigraphy Of The Northern Part Of The South Virgin Mountains, Clark County, Nevada, J. R. Morgan

Earth and Planetary Sciences ETDs

The northern part of the South Virgin Mountains is within the transition zone between the Basin and Range Province and the High Plateaus of the Colorado Plateau. Sedimentary formations in the Paleozoic are represented by more than 6,800 feet of carbonate and elastic sediments. Ordovician rocks are thought to be present, but are not confirmed. Rocks of Silurian age are absent from the area. Triassic and Jurassic units, the Moenkopi Formation, Chinle Formation and the Aztec Sandstone, have a composite thickness of more than 3,700 feet. There are elastic and minor carbonate rocks, all of continental origin, that are of …

An Examination Of The Romberg Method For Numerical Integration, Water James Halpin

Mathematics & Statistics ETDs

INTRODUCTION

This paper will amount to an inquiry into the mathematical structure and properties of a matrix of approximate integration formulas due to Werner Romberg 1 which have found considerable favor in numerical analysis during the past decade. Like other devices for approximate integration the Romberg method has its origin in the exhaustion techniques developed by the Greeks for determining the areas of figures enclosed by lines in the plane. It is particularly closely associated with the scheme employed by Archimedes2 (circa 250 B.C.) for approximating the value of [3.14]. This involves a doubling process which is essentially the basis …

A Study Of The Synthesis And Reactions Of Condensed Pyriadazines, Lorraine Marie Distefano

Chemistry and Chemical Biology ETDs

A special interest in a nitramine rearrangement prompted the preparation of 1,4-diaminopyridazino [4,5-d] pyridazine and the nitration of this compound. Several reactions of the intermediates, which were synthesized en route to 1,4-diaminopyridazino [4,5-d] pyridazine, were studied. Strong evidence for the existence of keto-enol tautomerism was found in the case of 1,4-dihydroxypyridazino [4,5-d] pyridazine and its derivatives.

Some reactions of 5, 8-dichloropyrazino [2,3-d] pyridazine were studied with particular interest in the nucleophilic displacement of azides and in the nitration of 5,8-dianilinopyrazino [2,3-d] pyridazine.

The nitration of diaminophthalazine was also attempted in order to perform an acid catalyzed nitramine rearrangement from one …

Criteria For The Determination Of Flow Direction In Volcanic Rocks, Eugene Irwin Smith

Earth and Planetary Sciences ETDs

A statistical method employing the Tukey Chi-square test and the vector method was used for determining the direction of primary flow lineation in volcanic rocks. Oriented samples were collected from the McCartys Basalt, the porphyritic andesite of Mount Taylor and the Bandelier and Battleship Rock Rhyolite Tuffs of the Jemez Mountains. All these localities are in New Mexico. Measurements were taken of the elongate particles in each horizontal thin section. The flow lineation direction in each slide was determined statistically by computing values of vector mean or chi-square orientation. The McCartys flow samples showed the lowest reliability. This was probably …

Rocket Probe Measurement Of Electron Energy Spectra In The Earth's Radiation Belts, Donald Stuart Robb

Physics & Astronomy ETDs

No abstract provided.

The Approximation Of Eigenvalues And Eigenfunctions Of Convolution Kernels, Adelbert Lee Roark

Mathematics & Statistics ETDs

No abstract provided.

Nuclear Quadrupole Relaxation., Derwin F. Brown

Physics & Astronomy ETDs

A nucleus with an asymmetric charge distribution (an asymmetric arrangement of protons) exhibits a quadrupole moment which interacts with the gradient of the electric field of the surrounding electrons. The interaction energy is a function of the angle between the nuclear spin axis and the axis of the surrounding electric field. The nucleus processes about the electric field axis in quantized energy states. These quantized energy states correspond to a hyperfine splitting simi­lar to the hyperfine structure of the magnetic dipole-dipole interaction between the nucleus and the electrons. The application of an external electric field, oscillating at the processional frequency …

An Introduction To The Fundamentals Of Radiation Transport Theory., William A. Proctor

Physics & Astronomy ETDs

I first became interested in radiation transport theory when, in August 1966, I was given primary responsibility for a large computer program which serves as a tool for solving high temperature, time dependent, radiation-hydrodynamics problems. Inquiries as to where to start learning about this subject invariably resulted in my being directed to the two books by Chandrasekhar (1957 and 1960) and the book by Kourganoff (1963). From the beginning of my study of these expositions, I found it rather curious that a theory which treated the radiation field as continuously distributed in space was formulated in a manner which appeared …

Geology Of The Cerro Pelon-Arroyo De La Jara Area, Santa Fe County, New Mexico, Alvis Lee Lisenbee

Earth and Planetary Sciences ETDs

The Cerro Pelon-Arroyo de la Jara area is a north-northwesterly plunging syncline at the southern end of the Española basin. Exposed rock units consist of more than 5,000 feet of Mesozoic and Cenozoic shale and sandstone intruded by Oligocene diorite sills and andesite and latite dikes related to the Ortiz intrusive center to the west.

The syncline is affected by several fault systems with both normal and strike-slip movement represented. Northerly trending faults of the east limb combine with a monoclinal flexure to produce an over-all lowering of the section to the west. These faults appear to be related to …

Analysis Of Particle Counting Rate Variations Observed On Satellite Oso-B2, Esther Y. Ma

Physics & Astronomy ETDs

The ommidirectional cosmic ray fluxes at an altitude of 300 miles and within ± 34 degrees latitude were studied using two Cerenkov counters and a scintillation counter aboard the 0S0-82 Satellite. The fluxes were found to depend strongly on the geomagnetic field with the trapped particles in the South Atlantic Radiation Anomaly being directional in some locations.

²⁰⁷Pb (N, N') ²⁰⁷Pbm And ²⁰⁸Pb (N, 2n) ²⁰⁷Pbm Cross Sections, Edward Raymond Shunk

Physics & Astronomy ETDs

The cross sections for the production of the ²⁰⁷Pb^m state from ²⁰⁷Pb(n, n') and ²⁰⁸Pb(n, 2n) have been measured from the threshold through 14 MeV by observing the 1 .064 MeV gamma ray in the decay of ²⁰⁷Pb^m (T _½ = 0.818 ± 0.004 sec) with a 3 in. x 3 in. NaI (T1) detector. Separated lead isotopes were irradiated for 4 sec and pneumatically transported to the detector. A 400-channel analyzer a used a time analyzer to record counts from neutron monitor during the irradiation and from the detector after the irradiation. These …

Completion And Compactification Functors For Cauchy Spaces, James Francis Ramaley

Mathematics & Statistics ETDs

The subject of this thesis is topological but the approach is categorical. We consider the approach as important as the subject itself and so we try to indicate whenever we have a categorically defined concept. In fact, we are led by this approach to make definitions and constructions so that certain relationships are categorical in nature. Our coreflective completion functor of Chapter IV is one example of this approach.

We wish here to give a brief outline of the historical develop­ment of convergence theory and how category theory has come to play a role in this development...

Surface-Wave Phenomena At Liquid-Air Interfaces, Robert H. Dungan

Physics & Astronomy ETDs

The purpose of this investigation was to continue the study of surface wave phenomena initiated by Woodward and Bryant. [l], [2] Woodward, using an experimental arrangement similar to that shown in Fig. 3, observed that the intensity of light measured above, but parallel to, the reflected beam was a very sharp function of the incident beam angle at the critical angle. They also observed that the light intensity above the reflected beam decreased exponentially as the detector was moved away from the reflected beam in the plane of incidence. They reported characteristic lengths for the exponential decay constant of 9.6 …

Some Observations On The Chemical Behavior Of Carrier-Free Iodine-131 And Dilute Carrier Iodine0127, Manning S. Reynolds

Chemistry and Chemical Biology ETDs

Unexpected behavior by very small amounts of iodine has been noted by biochemical, medical, and ecological workers. It also has been shown that mild oxidation of carrier-free iodide-131 produced previously unknown species of iodine compounds. It was of interest to determine whether such species also result from the reduction of iodate.

While studying the formation of carrier-free iodate-131 by perchloric acid oxidation of iodide-131 at elevated temperatures, it was found that the acid is not directly responsible for the formation of iodate. Instead, the oxidation is accomplished by a volatile material (thought to be chlorine dioxide) formed only in perchloric …

Mineralogy Of Coesite And Petrographic Association And Distribution At Meteor Crater, Arizona., Alfred A. Burgoyne

Earth and Planetary Sciences ETDs

Natural coesite, the high density monoclinic polymorph of silica, is found in shocked and melted sandstone at Meteor Crater, Arizona. Structural, morphological, and optical data have been obtained from synthetic coesite crystals and aggregates. Natural coesite occurs as microcrystalline anhedral grains which are unsuitable for the above determinations. In this study the following new data have been obtained for natural and synthetic coesite.

(1) The calculated and observed d spacings and their intensities for both natural and synthetic coesite have been reinvestigated through a 28 range from 10⁰ to 75⁰ for CuKo

(2) Nearly all grains of synthetic …

Stratigraphy Of The Lower Morrison Formation Along The Defiance Monocline, New Mexico And Arizona, Robin Clair Lease

Earth and Planetary Sciences ETDs

Along the western border of the San Juan Basin a prominent cliff-forming, orange sandstone has been incorrectly mapped as a part of the Recapture Shale Member of the Morrison Formation. This stratigraphic unit is here given the informal name, Beautiful Mountain member, and has stratigraphic continuity with the Salt Wash Sandstone Member in Red Rock Valley and the Cow Springs Sandstone in Todilto Park, New Mexico. The Recapture Shale Member is restricted to the pink and pale-green, slope-forming sandstone above these orange sandstone beds and below the Westwater Canyon Sandstone Member.

The Beautiful Mountain member is predominantly a lenticularly bedded, …

Relationship Of Pleochroism And Specific Refractivity Of Cupric Compounds To Cupric Ion Coordination., Pilsum Phiroze Master

Earth and Planetary Sciences ETDs

The ion has a 6-fold coordination. The CU-polyhedron is distorted due to the Jahn-Teller effect. There is, hence, varying polarizability in each Cu-polyhedron. Also since the nature (and size) of the ligands in each Cu-polyhedron varies, the polarizability varies from one Cu-polyhedron to the next.

Light waves passing through the Cu-polyhedra cause electron polarization. Conversely the polarizing action of light waves upon the atoms is accompanied by a reaction of the atom upon the light waves. Hence, absorption of light energy is directly proportional to polarizability. This thesis demonstrates this relationship by:

l) Showing that the projection of the square-planar …