Physical Sciences and Mathematics Commons^™

Nuclear-Magnetic-Resonance Study Of Co2+ In Cds, David C. Look, Donald R. Locker

Physics Faculty Publications

Nuclear spin-lattice relaxation times, T₁, have been measured over a temperature range T=(1.1-300) °K and frequency range ν=2-15 MHz in a single crystal of CdS doped with 13-ppm cobalt. Minima in T₁ vs T are observed, and absolute values of the effective electron relaxation time, τ_e, may be calculated at the temperatures of the minima, e.g., at 14 °K, τ_e=8.0×10^-8 sec. At low temperatures, T≲5 °K, τ_e is dominated by a resonant Orbach process involving the two ground-state Kramers doublets (S=±3/2 and S=±1/2) which, according to our measurements, are split by …

Tunellite, A New Hydrous Strontium Borate From The Sarikaya Borate Deposits In Turkey, Orhan Baysal

Bulletin of the Mineral Research and Exploration

No abstract provided.

Deği̇şken Frekansli İ.P. Metodunda, Aşiri Geri̇li̇mi̇n Reel Ve İmaji̇ner Bi̇leşenleri̇nden İsti̇fade İle Yan Kayaç Anomali̇leri̇ni̇n Sülfürlü Mi̇neral Yataklarinin Anomali̇leri̇nden Ayrilmasi*, Akın Gökişik

Bulletin of the Mineral Research and Exploration

No abstract provided.

Deni̇z Hukukundaki̇ Yeni̇ Geli̇şmeler Ve Madenci̇li̇kle İli̇şki̇si̇*, Selçuk Demi̇rsoy

Bulletin of the Mineral Research and Exploration

No abstract provided.

Eikonal Approximation For Coupled Equations For Multichannel Scattering, Rung T. Ling, Joseph C.Y. Chen, Jerry Peacher, Kenneth M. Watson

Physics Faculty Research & Creative Works

It is well known that the Glauber approximation for scattering amplitudes is obtained by applying the eikonal approximation to the Fourier transform of the transition operator. The eikonal approximation can also be applied to the coupled equations of scattering obtained by the expansion of the state function in terms of a suitable set of functions. The scattering amplitude can thus be obtained by solving the set of eikonal coupled equations. The latter approach is analyzed for a special class of channel-coupling potentials. The first-order approximation to the derived eikonal coupled equations is the eikonal Born approximation. Numerical illustrations in this …

A Study Of The (3He, N) Reaction At 25 Mev, Mark Bentley Greenfield

Doctoral Dissertations

Energy spectra of neutrons from the ¹²C (³He, n)140; ²⁷A1(³He, n)²⁹P; ²⁸Si(³He, n)³⁰S; and ^58,60,62Ni(³He, n)^60,62,64Zn reactions have been measured at 25 MeV incident ³He energy using time-of-flight techniques. An overall energy resolution of about 1 percent for detection of 10-35 MeV neutrons provided accurate determinations of level excitations. Differential cross sections were extracted for many two particle states with up to 10 MeV excitation in the residual nuclei. By varying the beam incident angle and leaving the flight path somewhat …

The Wittig Reaction With Carbohydrates And The Addition Of Benzenesulfonyl Azides To Indoles, George R. Wellman

Dissertations

No abstract provided.

Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part Ii, Vincent P. Drnevich, D. Raghu

KWRRI Research Reports

Four seismic field methods and a laboratory method are used to determine shear wave propagation velocities and shear moduli for two sites. The four seismic methods are: standard seismic refraction survey, down hole shooting refraction survey, transient Rayleigh wave survey, and crosshole shooting survey. A torsional resonant column apparatus was used for the laboratory tests. The cross hole shooting method gave the best results because direct measurements were made. Criteria for using this method are given. Methods which measure compression wave velocity give inconsistent results because the conversion to shear wave velocity is very sensitive to Poisson's ratio. Laboratory tests …

Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part I, Vincent P. Drnevich, S. R. Smith, E. P. Cleveland

KWRRI Research Reports

The basic concepts associated with the sledge hammer seismic refraction survey are reviewed and a modified version called down hole shooting is discussed. The latter method has distinct advantages for rock surface profiling. These include: calibration at the end points of the survey, measurement of vertical wave propagation velocities directly, and having a refracted wave ray path for almost the entire survey length.

The down hole shooting seismic refraction survey has been simulated with the digital computer. The method can handle any shaped rock surface profile and generates corresponding travel time curves for the forward and reverse profile surveys. This …

Studies Of The Potential Curve Crossing Problem Ii. General Theory And A Model For Close Crossings, John B. Delos, W. R. Thorson

Arts & Sciences Articles

A unified formal treatment of the two-state potential-curve-crossing problem in atomic collision theory is presented, and the case of close crossings analyzed in detail. A complete solution for this case, including necessary computations, is given using a suitable generalization of the linear model originally suggested by Landau, Zener, and Stueckelberg. Our solution is based upon a hierarchy of approximations concerned with (i) choice of a discrete basis set for electronic coordinates, (ii) semiclassical treatment of the nuclear motion, (iii) an appropriate model for the two-state electronic Hamiltonian, and (iv) a complete solution to that model.

Semiclassical Theory Of Inelastic Collisions Ii. Momentum Space Formulation, John B. Delos, Walter R. Thorson

Arts & Sciences Articles

The time-dependent equations of the classical picture of inelastic collisions (classical-trajectory equations) are derived using the momentum-space semiclassical approximation. Thereby it is shown that the classical-trajectory equations remain valid in the vicinity of classical turning points provided that (a) the momentum-space semiclassical approximation is valid, (b) the trajectories for elastic scattering in the various internal states differ only slightly, and (c) the slopes of the elastic scattering potentials have the same sign. A brief review of the existing derivations of the classical-trajectory equations is given, and the general conditions for their validity are discussed.

The Bi̇ngöl Earthquake Fault And Its Relation To The North Anatolian Fault Zone, İhsan Seymen, Atillâ Aydin

Bulletin of the Mineral Research and Exploration

No abstract provided.

Studies On Tunellite (Strontium Borate) Mineral, Hüseyin Gülensoy, T. Teberdar

Bulletin of the Mineral Research and Exploration

No abstract provided.

The Köprübaşi Ore Occurrence (Ne Turkey), Vojislav Vujanovi̇c

Bulletin of the Mineral Research and Exploration

No abstract provided.

Publications Of The Mineral Research And Exploration Institute Of Turkey, - -

Bulletin of the Mineral Research and Exploration

No abstract provided.

Completions Of Lattices With Semicomplementation, Alan A. Bishop

Dissertations

No abstract provided.

Lower Paleozoic Stratigraphy And Faunas Of The Eastern Taurus Mountains In The Tufanbeyli̇ Region, Southern Turkey, Necdet Özgül, Sait Meti̇n, William T. Dean

Bulletin of the Mineral Research and Exploration

No abstract provided.

Solid Phase Reactions With Tunellite Mineral, Hüseyin Gülensoy, T. Teberdar

Bulletin of the Mineral Research and Exploration

No abstract provided.

The Dimetalation And Subsequent Functionalization Of 1,3-Dimethylnaphthalene By Means Of Amylsodium In The Presence Of Certain Tertiary Amines, Atilla Tuncay

Masters Theses

I. Introduction

It is well known that the hydrogen atoms of a methyl group directly attached to an aromatic system are sufficiently acidic to be abstracted by suitable bases to generate the corresponding α-anion.^1,2 These monoanions have frequently served as suitable intermediates for the formation of a large variety of a-condensation products in good to excellent yields² On the other hand, attempts to obtain α,α-dianions from various dimethylaromatic systems have met with limited success.² Due to the lack of sufficiently strong bases, dimetalation products were obtained only in poor yields even at high temperatures and prolonged reaction …

Kinetics Of The Formation Of Nickel(Ii) Complexes With N,N’-Dibenzylethylenediamine And N,N’-Bis(2-Picolyl)Ethylenediamine, Zahid Amjad

Masters Theses

No abstract provided.

On The Genus Of Hamiltonian Groups, Paul E. Himelwright

Masters Theses

No abstract provided.

The Reactions Of Sodium Naphthalenide With Carbonyl Compounds And Esters, Manhar Vora

Masters Theses & Specialist Projects

The purpose of this investigation was to study the reactions of sodium naphthalenide with various carbonyl and acyl compounds. J. W. Stinnett, Jr. investigated aspects of the reactions of carbonyl compounds and that study was expanded. The major emphasis, however, was to extend the investigation to the reactions of esters. With regard to the reactions of esters, it was thought that sodium naphthalenide might provide a synthetic advantage, as compared to the sodium metal solutions, in the reduction of the acyl compounds to their corresponding acyloins.

The Formation And Study Of Certain Bicyclic Enolate Monoanions And Dianions, Ernest William Crowe

Masters Theses

No abstract provided.

Calculations Of Nuclear Structure Using Isospin Formalism, Roger A. Cook

Masters Theses

No abstract provided.

Sediment-Topography Relationships In The Inner Nearshore Zone, Southeastern Lake Michigan, Robert David Lopiccolo

Masters Theses

No abstract provided.

Hydrostatic Pressure Effects On The Epr Spectrum Of V2+: A1203 And Cr3+: A120, Charles J. Wilcox

Masters Theses

No abstract provided.

A Community Health Nursing Care Plan, Gayle Clark

Loma Linda University Electronic Theses, Dissertations & Projects

Structured nursing care plans are recognized tools in the effective utilization of the nursing process. Community health nursing services have not commonly used structured nursing care plans. The purpose of this study was to improve the management of patient problems through the deliberate use of the nursing process by providing the public health nurse with a structured nursing care plan. A plan was developed which consisted of a nursing history outline, a plan for action tool, and an evaluation form.

The nursing problem of milk anemia was selected to be managed by public health nurses in the study. Six nurses …

Physical And Geological Studies Of The Proposed Bridge-Tunnel Crossing Of Hampton Roads Near Craney Island, C. S. Fang, B. J. Neilson, A. Y. Kuo, R. J. Byrne, C. S. Welch

Reports

Part 1: James River Hydraulic Model Tests

Part 2: Impact on Shoreline, Hampton Flats and Newport News Point Area

Part 3: Drogue Study, Hampton Flats and Newport News Point

Part 4: Hydraulic Model Test Results

Semiclassical Theory Of Inelastic Collisions I. Classical Picture And Semiclassical, John B. Delos, W. R. Thorson, Stephen Knudson

Arts & Sciences Articles

This series of papers is concerned with the derivation of the equations of the classical picture of atomic collisions, iℏddtdi(t)=Σjhij(t)dj(t), which describe the "time" dependence of electronic-quantum-state amplitudes as the nuclei move along a classical trajectory. These equations are derived in two ways. In the first formulation, which coincides with the intuitive classical picture of the collision, the nuclear part of the wave function is treated as a superposition of narrow wave packets, each traveling along a classical trajectory. In the second formulation, a semiclassical approach is used. The validity and meaning of the two formulations are discussed and compared.

14th Annual Rocky Mountain Spectroscopy Conference

Rocky Mountain Conference on Magnetic Resonance

Program and abstracts from the 14th annual meeting of the Rocky Mountain Spectroscopy Conference, sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, July 31 - August 1, 1972.