Physical Sciences and Mathematics Commons^™

Refinements In The Isomer Distribution And Relative Rate Of Sulfonation Of Toluene And Hydrochlorination Of Olefins With Stannic Chloride Catalyst, David George Guillot

Theses and Dissertations

The sulfonation of toluene at -12.5° C. with sulfur trioxide in liquid sulfur dioxide was found to give 10.03 ± 0.20 % ortho, 0.73 ± 0.20 % meta and 89.24 ± 0.20 % para isomers. This isomer distribution was determined by isotope dilution analysis using sulfur-35 enriched sulfur trioxide. After dilution of aliquots of the neutralized sulfonation mixture with pure sodium salts of each of the isomers prepared from the corresponding toluidines, the isomers were converted to the p-toluidine salts, purified by recrystallization, and counted by liquid scintillation counting. The relative rate of sulfonation of toluene compared to benzene was …

Iowa Junior Academy Of Science: The Thirty-Fourth Convention, April 15 And 16, 1966, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Tb22: Design, Construction And Calibration Of A Laboratory Rainfall Simulator, Eliot Epstein, Walter J. Grant

Technical Bulletins

The use of field plots under natural rainfall conditions to evaluate factors that cause or contribute to erosion requires a long period of study to cover a range of climatic variations. To shorten the time required for erosion studies, field plot and laboratory rainfall simulators have been developed. The rainfall simulator at the University of Maine was designed for the study of soil characteristics as related to soil erodibility, and for the determination of soil erodibility factor (K) as used in the universal soil loss prediction equation.

Judicial Prediction And Analysis From Empirical Probability Tables, Stuart S. Nagel

Indiana Law Journal

No abstract provided.

Studies On The Ribosomal Ribonucleic Acids From Mesophilic And Thermophilic Bacteria, Alice A. Holazo

Masters Theses

Introduction

Certain organisms have been known to live at temperatures at which cellular constituents ordinarily sensitive to heat are destroyed. These organisms. called thermophiles (heat-loving), normally live at higher temperature range of the biokinetic zone (10^o-45^oC).

Equivalence Classes Of Fundamental Sequences Of Rational Numbers, M. Marlene Greatens

Master's Essays (1922 - )

No abstract provided.

Intuitionist Logic, Dennis R. Ferman

Electronic Theses & Dissertations

This thesis deals with the somewhat controversial topic of Intuitionist logic and mathematics. Since the writer's objective in this case is to explain this theory, the point of view expressed herein will tend toward that of the intuitionist's, with emphasis given to the positive aspects of the theory.

For those who might wonder whether the material covered in this thesis is really logic, mathematical philosophy, or foundations of mathematics; there is no exact answer. These three concepts tend to be artificial since the boundaries between them, if any, are rather vague. The writer does feel though, that this material should …

Ferromagnetic Metals In High Magnetic Fields, A. J. Freeman, N. A. Blum, S. Foner, Richard B. Frankel, E. J. Mcniff, Jr.

Physics

High‐field susceptibility results are presented for Mössbauer measurements on iron at low temperatures in fields up to 135 kOe and magnetization measurements on iron and nickel single crystals in fields up to 148 kOe with vibrating sample magnetometers. The Mössbauer measurements give the hyperfine field H_n= H_int− (H₀−H_DM)+ΔH, where H_int is the hyperfine field at zero applied field, H₀ is the applied field, H_DM is the demagnetizing field, and ΔH is a term which would reflect a change in the magnetization at high field, …

Hyperfine Fields And Isomer Shifts In Magnetically Ordered Europium Compounds, H. H. Wickman, I. Nowik, J. H. Wernick, D. A. Shirley, Richard B. Frankel

Physics

The Mössbauer technique was employed to study hyperfine fields in several ordered divalent europium compounds at low temperatures. The intermetallics EuCu₂, EuAl₂, and EuAl₄ were ordered at helium temperatures and the observed fields and isomer shifts were 189(8) kOe, −0.88 cm∕sec; 278(8) kOe, −0.97 cm∕sec; and 290(8) kOe, −1.14 cm∕sec, respectively. Comparison of these results and previous measurements with EuO, EuS, and Eu metal indicates a possible correlation between isomer shift and internal field. With the exception of EuCu2 the internal fields increase with increasing magnitude of isomer shift. Interpretation of this trend with a …

Hydrolysis Of Benzohydroxamic Acid, Robert L. Fuller

Masters Theses

Introduction

The hydroxamic acids were discovered in 1869 by H. Lossen¹. The nomenclature, structure, and chemistry of these compounds have been summarized in an excellent review article by Yale².

Stage-Fall-Discharge Relations For Flood Flows Over Highway Embankments, Gaylord V. Skogerboe, M. Leon Hyatt, Lloyd H. Austin

Reports

At Utah State University, considerable effort has been devoted to the analysis of submerged flow at open channel constrictions. A method of analyzing submerged flow was first developed for a trapezoidal flume by Hyatt (1965). Later studies verified the method of analysis for a rectangular flume (Skogerboe, Walker, and Robinson, 1965) and Parshall flumes (Skogerboe, Hyatt, England, and Johnson, 1965). Because of the previous findings, it was felt this method of analyzing submerged flow could be applied to highway embankments.

A highway embankment is a form of broad-crested weir when overtopped by flood waters. Being a weir, the flood discharge …

Water Levels In Observation Wells In Nebraska, 1965, Philip A. Emery, Mildred M. Malhoit

Conservation and Survey Division

No abstract provided.

Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Dallas Wheat

WKU Administration Documents

Report on how the WKU Farm was used in courses on agricultural engineering and soil and water conservation.

Isomer-Shift Measurement In W182, S. G. Cohen, N. A. Blum, Y. W. Chow, Richard B. Frankel, L. Grodzins

Physics

No abstract provided.

Diffusion Of The Chlorine Ion In Potassium Chloride , Robert Fuller

Robert G. Fuller Publications

The diffusion coefficient of the chlorine ion was measured in pure single crystals of potassium chloride and in crystals containing mole fractions of strontium chloride between 2.1 x 10^-5 and 4.69 x 10^-4. The results were consistent with the assumption that both anion vacancies and vacancy pairs contribute to the diffusion of the chlorine ion. The diffusion coefficient of the chlorine ion in pure potassium chloride was well represented by the equation D=61 exp (-2.12±0.05 eV/kT) cm²/sec from 560 to 760 °C. The anion-vacancy contribution to the chlorine-ion diffusion coefficient in pure …

X-Ray Diffraction Studies On Tin To 100 Kilobars, J. Dean Barnett, Vern E. Bean, H. Tracy Hall

Faculty Publications

The high-pressure equilibrium phase diagram of tin is investigated, and the crystal structure of Sn II at 98 kbar and 25degrees C is shown to be body-centered tetragonal with a=3.70 Angstroms, c=3.37 Angstroms, c/a=0.91, and with two atoms per unit cell. The linear compressibility of white tin is given at 25degrees C up to the high-pressure transformation at 92 kbar, and the latent heat of the transformation is measured as 225 cal/g-atom.

Modifications To Gate-Flume Structures On The Weber Davis Canal, Gaylord V. Skogerboe, M. Leon Hyatt

Reports

The turnout structures under study divert flows from the Weber-Davis Canal near Clearfield, Utah. A portion of the canal in this area was realigned as a result of the construction of the Interstate Highway System. The twin turnout structures, used to divert water to the West Branch Irrigation Company and West Layton Irrigation Company, were constructed in conjunction with the realignment of the concrete -lined canal.

A three-dimensional drawing of the twin turnout structures is shown in Fig. 1. Water is diverted from the canal by passing under the discharge diverted through each of the structures is approximately 35 cfs …

On The Solution To Partial Differential Equations By Means Of Bergman's Integral Operator, George R. Young

Dissertations, Theses, and Masters Projects

No abstract provided.

Fourier Transforms In Euclidean K Space, Terry A. Straeter

Dissertations, Theses, and Masters Projects

No abstract provided.

Comparative Definitions Of The Derivative, Richard Francis Barry

Dissertations, Theses, and Masters Projects

No abstract provided.

Index To The Genera, Subgenera, And Sections Of The Pyrrhophyta, Alfred R. Loeblich Jr, Alfred R. Loeblich Iii

Studies in Tropical Oceanography

No abstract provided.

Magnetic Structure Of Ga2−Xfexo3, R. B. Frankel, N. A. Blum, S. Foner, A. J. Freeman, M. Schieber

Physics

High‐magnetic‐field‐Mössbauer and magnetic‐moment experiments have been performed with Ga2−xFexO3. This magnetic system is of considerable interest because it is piezoelectric, weakly magnetic,1 and magnetoelectric.2 The crystal structure has been determined3 and a magnetic ordering inferred.3 The magnetic‐moment measurements were made using a vibrating sample magnetometer in fields up to 75 kOe. The samples used for the Mössbauer absorption experiments consisted of 57Fe enriched powders, grown from a flux, embedded in lucite, and having x=0.8 and 1.2. A mosaic absorber made of small x‐ray oriented single crystals was also studied. Measurements were made over the temperature range 4.2° to 320°K and …

The Relationship Of Flooding And Saline Water Tables, Stanley Thomas Smith

Journal of the Department of Agriculture, Western Australia, Series 4

IN Western Australia there are several ways in which salt manifests itself but the most serious and extensive of these is in the valley systems where shallow saline water tables occur.

This type of salt problem is called "valley waterlogging" and occurs in most of the flat valleys throughout the wheatbelt of W.A.

The Feather Mite Genus Proctophyllodes (Sarcoptiformes: Proctopbyllodidae), Warren T. Atyeo, Norman L. Braasch

Bulletin of the University of Nebraska State Museum

A systematic revision is presented for the genus Proctophyllodes. Data on the bionomics, morphology, and host-parasite relationships are included.

Analog Plotting System For Recording Energy Spectra Of Low Energy Charged Particles, M. Eugene Rudd

M. Eugene Rudd Publications

During recent measurements of energy spectra of electrons emitted from gases under positive ion bombardment an analyzing and plotting system was developed which has some unique features. Utilizing an electrostatic analyzer, it sweeps over the desired energy range and plots a graph directly in electron volts. With suitable modifications it could also be used for positive ions. Energies from near 0 to about 1000 eV have been plotted but this range could be extended. Usable graphs have been obtained at counting rates as low as 3 counts/sec.
Compensation is provided for fluctuations in the signal due to slow or rapid …

Electron Energy Spectrum From Ar+-Ar And H+-Ar Collisions, M. Eugene Rudd, T. Jorgensen, Jr., D. J. Volz

M. Eugene Rudd Publications

Absolute differential cross sections have been measured for the ejection of electrons of various energies at 160° by argon ions and protons striking argon gas as a target. The observed energy spectrum consists of a number of "lines" or peaks superimposed on a continuous spectrum. The fine-structure regions occur below 20 eV and from about 120 to 220 eV for both projectiles. A number of lines are identified with auto-ionization transitions from neutral states and with Auger transitions from one- and two-vacancy states. With argon ions each peak has a "Doppler"-shifted counterpart due to electrons emitted from the moving particles. …

Time Discounting By Certain Forest Landowners, Donald F. Flora

Yale School of the Environment Bulletin Series

No abstract provided.

On The Inversion Of A Hilbert Type Matrix, William Trench, Perry Scheinok

William F. Trench

We consider the inversion of finite and infinite matrices related to Hilbert matrices.

A Method For The Determination Of Solanesol In Tobacco, Ludwig Weissbecker

Master's Theses

The object or this work was to develop a procedure for the quantitative determination of solanesol in the petroleum ether extract of tobacco. The amount of tobacco extracted into petroleum ether is routinely used to differentiate tobacco types. The extraction procedures have been extensively studied by the Association of Official Agricultural Chemists (AOAC) and reported in the United States Department of Agriculture (USDA) Technical Bulletin # 1186.

There is at present no method for the quantitative determination of solanesol. One procedure which comes closest, involves an infrared measurement of the tobacco extract. Because of the presence of other bands, the …

A Bacteriological Study Of Five Farm Ponds Of The Bear Valley Watershed, Nicholas F. Reuter

Honors Theses, 1963-2015

No abstract provided.