Physical Sciences and Mathematics Commons^™

Charge-Transfer Cross Sections For Negative Ions On Atomic And Molecular Targets, W. (William) R. Snow, R. D. Rundel, R. Geballe

Physics Faculty Research & Creative Works

Charge-transfer cross sections for H^- on O, O₂, and NO₂; O^- on H, O, H₂, O₂, and NO₂; and C^- on H and O have been measured over an energy range of 0.5 to 4 keV using a modulated crossed-beam apparatus. The experimental cross sections are compared with theories of resonant and non-resonant charge transfer based on a two-state approximation. For the reactions H^-+O O^-+H, the cross sections are found to be consistent with detailed balancing. The effect of electron detachment on charge-transfer …

The Mean In Statistics, Rex E. Babcock

Honors Theses

When one speaks of how statistics have been utilized in decades past there is much to say. However, it is even more astonishing when one speaks of the utilization of statistics today. The use of statistics is widespread virtually over all of the world today, and is put to use in such fields as surveys, census, psychometrics, and almost every business, vocation, and employment that may come to one's mind. But I wish to confine myself to the mean in statistics; I will even make another boundary on myself by discussing only the arithmetic mean, geometric mean, harmonic mean, and …

The Effect Of The Rate Of Formation On The Structure And Properties Of Paper, William M. Reif

Masters Theses

Paper contains an uneven distribution of fiber fractions through its cross section. The objective of this study was to determine how the rate of formation affected the structure and properties of paper. The structure of paper was analyzed with reference to the cross-sectional distribution of fines and the fines to long fibers ratio in the paper.

The formation rate and distribution of fins were varied by applying a vacuum to the British sheetmold system. As the fines were a different color than the long fibers, their distribution was determined by analyzing the brightness values of layers split from the paper. …

Preparation And Lead Tetraacetate Oxidation Of Aldehydic Hydrazones, Alan J. Quarfoot

Masters Theses

No abstract provided.

Formation Of Carbides On Tungsten Wires, W. J. Croft, Kaare J. Nygaard

Physics Faculty Research & Creative Works

It has been found that layers of tungsten carbide form on tungsten wires processed under ultra-high vacuum. The carbide is formed from carbon impurities in the volume of material.

Infrared Reflectivity Of Doped Insb And Cds, Thomas J. Mcmahon, Robert John Bell

Physics Faculty Research & Creative Works

The coupling of free carriers and lattice-vibrational modes in CdS and InSb was investigated by using reflectance measurements. When the free-carrier concentration is such that the longitudinal-optical-mode frequency is at or near the plasma frequency, the longitudinal mode takes on a mixed character and is shifted in a manner similar to that described by Varga in 1965, while the transverse mode remains fixed. The electron effective masses in such a situation can be determined with the lattice effects excluded. In the case of CdS, the polaron mass and additional absorption in the plasma mode above the longitudinal-optical phonon frequency must …

Problems And Management Of Water Quality In Hillsborough Bay, Fl, Federal Water Pollution Control Administration

Reports

Full scale filed operations began on June 8, 1967. Since that time, a pattern of pollution, water quality degradation and a complex ecological system has been defined.

Transpiration Measurements Of The Decomposition Pressures Of Barium Hexafluorosilicate, Kemal Cankaya

Masters Theses

No abstract provided.

Simultaneous Knudsen- And Torsion- Effusion Measurements Of The Vapor Pressures Of Tetraphenyltin And Hexaphenylditin, Dale Keiser

Masters Theses

No abstract provided.

Dimethyl Sulfoxide Oxydation Of Hydroxy-Steroids And Studies On The Oxidation Of The 5’–Hydroxy Group Of Nucleosides, Carmen V. Zenarosa

Dissertations

Introduction

In our earlier work we demonstrated the usefulness of the acidcatalyzed reaction between N-(p -tolyl)diphenylketenimine (21) and dimethyl sulfoxide (DMSO) for the oxidation of secondary alcohols. This was exemplified by the oxidation of 2',3'-O-isopropylideneadenosine and other secondary alcohols.¹ We have now extended this procedure to the oxidation of hydroxy-steroids.

Alkynylamines or ynamines can be written in two resonance forms: R-C≡C-N R'₂ and R-C=C=NR'₂. Because of the close similarity between the latter structure and the structure of a ketenimine (R₂C=C=N-R') and the ability of sulfoxide-ketenimine to effect the oxidation of secondary alcohols, we …

Nuclear Structure Studies In 90Y, Ronald E. Goans

Masters Theses

Differential cross sections (12.5° to 47.5°) were measured for the ⁸⁹Y (d,p) reaction with 33.3 Mev deuterons from the Oak Ridge Isochronous Cyclotron. Proton spectra up to 5 Mev excitation in the ⁹⁰Y were observed in nuclear emulsions exposed in the focal plane of the broad range spectrograph. The resolution was approximately 25 Kev. The excitation energies agreed within experimental error with (d,p) experiments at 12 Mev and 15 Mev. Comparisons were made with DWBA calculations and ℓ-transfers were assigned to 25 levels. The ℓ-transfers and spectroscopic factors are in satisfactory agreement with previous papers for most strong …

A Study Of Some Matrix Elements For The Four-Pion Decay Mode Of Neutral Bosons, George Victor Weller

Masters Theses

No abstract provided.

The Isoelectronic Principle And The Accuracy Of Binding Energies In The Hückel Method, Jerry Goodisman

Chemistry - All Scholarship

In the Hükkel and other methods, binding energies are calculated by subtracting the sum of orbital electronic energies for the molecule from the sum of orbital electronic energies for the separated atoms, and not considering the internuclear repulsion. Since this last may be several orders of magnitude greater than the binding energy, reasonable results could not be obtained without an approximate cancellation with another neglected term. It is shown that such a cancellation is a consequence of the isoelectronic principle (invariance of binding energy to change in atomic number of constituent atom). Numerical examples are given.

Test 1033: Case 770 Manual Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1032: Case 770 Power Shift Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1030: Case 870 Power Shift Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1031: Case 870 Manual Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Vibrational Excitation By Electron Impact Near Threshold In H2, D2, N2, And Co, Paul Burrow, G.J. Schulz

Paul Burrow Publications

The trapped-electron method is applied to the measurement of the slopes of the vibrational cross sections near their respective thresholds. Absolute values are obtained by normalization to positive-ion cross sections. The values obtained in H₂ are 43 for v=1, 0.72, for v=2, 0.04, for v=3, and 0.003, for v=4, in units of 10^-18 cm²/eV. The values for N₂ are 2.5 for v=1 and about 0.02 for v=2, whereas, the values for CO are much larger, i.e., 120 for v=1 and 2.4 for v=2. Various corrections that are …

Hyperfine Interaction In Gd In Diamagnetic, Metallic Hosts, Richard B. Frankel

Physics

Mössbauer effect data for dilute, paramagnetic Gd in the diamagnetic, metallic hosts YAl₂, YbAl₂ and Al are analyzed and yield a local conduction electron polarization contribution to the Gd hyperfine field of +140 kOe.

Water Resources News, Volume 1, No. 7, November 1969

Water Current Newsletter

FY 1970 Appropriations
Interdisciplinary Water Resources Seminar
McCormick Named Deputy Assistant Secretary
Matching Grant Proposals Submitted for FY 1971 Consideration
Natural Resources District Law
Senate Appropriations Committee on Water Resources Research
Evaluation Procedures for Water Resources Projects
Research Review
New Publications Received by the Institute

Terminal Talk - The Wofford Connection - November 1969, Wofford College Computer Center

Terminal Talk

No abstract provided.

Manipulation Of Data Structure In A Numerical Analysis Problem Solving Systems, Lawrence R. Symes

Department of Computer Science Technical Reports

No abstract provided.

Mössbauer Effect In The Ferroelectric Pbtio₃-Bifeo₃ Solid Solutions, C. M. Yagnik, James P. Canner, Robert Gerson, William Joseph James

Physics Faculty Research & Creative Works

The Mössbauer spectra of the system (PbTiO₃)_0.95(BiFeO₃)_0.05 have been studied from room temperature to 585°C. From the isomer-shift of 0.491±0.02 mmsec^-1 at room temperature, the ionicity is found to be 60% ± 20%. A discontinuity in the plot of isomer-shift versus temperature at T_c is observed. The quadrupole splitting at room temperature is 0.295 ± 0.02 mm/sec^-1. A dip in the Mössbauer fraction is observed at the Curie temperature.

Test 1029: International Farmall 544 Hydrostatic Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Interpretation Of A Unified Theory Of Gravitation And Symmetry Breaking, David Peak, A Inomata

All Physics Faculty Publications

The formalism of Moen and Moffat is interpreted as a Yang-Mills theory set in a space-time generally endowed with curvature and torsion.

The Ias Bulletin, V3n5, November 1969, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Officers, Directors, and Section Charimen, 1969-1970
--- Spring Program Planning
--- Board Meeting Bombshell
--- What About the Proceedings Format?
--- Speakers' Bureau Project Dropped
--- Visiting Scientist Program Still Alive
--- Excellence in Teaching Awards
--- Long Range Program Planning in the Biological Sciences
--- Symposium Volume of Archeological Papers Being Prepared
--- Academy Representatives to Attend Academy Conference in Boston
--- Constitution Revision
--- Financial Condition of the Academy
--- Academy Membership is a Bargain
--- News from Other State Academies
--- Membership in the Academy
--- Iowa Academy og Science Visiting Sceintist Program …

Quasilattice Interpretation Of The Thermodynamic Properties Of Mixing Of Binary Alkali-Metal Systems, J. Bevan Ott, J. Rex Goates

Faculty Publications

Quasilattice theory was applied to heats of mixing in the six systems formed from the binary combinations of Na, K, Rb, and Cs. The alkali-metal systems are particularly well suited for a critical test of the quasi-crystalline assumption since the theoretical model for these systems is relatively simple and the thermodynamic data are fairly complex. Very good fits of the heat-of-mixing data were achieved by assuming that the larger atom in the binary system covered multiple sites on the quasilattice. The values of the empirically determined constants appear to fit the physical significance accorded to them by the quasilattice model. …

Test 1027: Ford 9000 Diesel Dual Power (Also Ford 9000 Diesel Dual Power Row Crop, 8-Speed All Purpose And 8-Speed Row Crop), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1028: Allis-Chalmers 160 Diesel (Also Allis-Chalmers 6040 Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1026: Ford 8000 Diesel Dual Power (Also Ford 8000 Diesel Dual Power Row Crop), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …