Physical Sciences and Mathematics Commons^™

Water Mass Structure And Variability North Of St. Croix, U.S. Virgin Islands, As Observed During The Summer Of 1977 For Otec Assessment, Thomas N. Lee, Robert S.C. Munier, Sherman Chiu

RSMAS Technical Reports

Variability of the water mass structure north of St. Croix in the Virgin Islands Basin was observed during a 2.5 month study of corrosion and biofouling on OTEC heat exchanger performance in the summer of 1977. Daily STD profiles and weekly hydrocasts were taken of the upper 1500m from a Tracor Marine barge moored 15 km north of St. Croix in 3600m water depth. The largest temporal fluctuation in water properties occurred ín the Tropical Surface Waters of the upper 100m due primariìy to advection of this spatially inhomogeneous water mass past the moor. Currents in the upper layer were …

Volume 2, Number 6 (June 1978), The Otec Liaison

The OTEC Liaison

No abstract provided.

Terminal Talk - The Wofford Connection - June 1978, Wofford College Computer Center

Terminal Talk

No abstract provided.

A Qualitative Justification For A Measure Of Program Clarity, Ronald D. Gordon

Department of Computer Science Technical Reports

No abstract provided.

Infrared Spectral Detectivity Of Cr‐Doped Gaas, David C. Look

Physics Faculty Publications

The room‐temperature spectral detectivity of Cr‐doped GaAs has been examined in the impurity excitation region out to 1.7 μ, a range which includes the wavelengths of several important lasers as well as low‐loss optical fibers. The results include values of D∗ greater than 10¹¹ cm Hz^1/2/W in the photoconductive mode, and 10¹⁰ cm Hz^1/2/W in the photomagnetoelectric mode. Small carrier lifetimes, ∼10⁻⁸ sec, offer the potential of high‐speed operation; however, the measured response times are much larger, ∼10⁻³–10⁻² sec, because of very high input impedances. Formulas are presented to …

List Of Geological Survey Geologic And Water-Supply Reports And Maps For Maine, U.S. Department Of The Interior - Geological Survey

Maine Collection

List of Geological Survey Geologic and Water-Supply Reports and Maps for Maine.

United States Department of the Interior - Geological Survey, June 1978.

Contents: Annual Reports / Mineral Resources of the United States / Monographs / Geologic Folios / Topographic Atlas of the United States, Folio 1 / Professional Papers / Bulletins / Water-Supply Papers / Circulars / Maps, Charts and Atlases

A Study Of The Acid Etch Pretreatment Used With The Nuva-Seal" Dental Process, Judith Ann Komoroski

Honors Theses

Nuva-Seal, a bisphenol-A-glycidyl-methacrylate polymer, is applied to the occlusal surface of teeth to prevent tooth decay. Before application of the sealant, the enamel surface is etched for one minute by a 50 percent by weight solution of phosphoric acid containing seven percent by weight of zinc oxide. This treatment renders the tooth surface more porous and surface active to insure a strong bond between tooth and sealant. Past studies at Union College have shown that the etching treatment removes much of the enamel from the tooth. In the current work the amount of tooth removed by acid etching was determined …

The Decomposition Of Azibenzil In The Presence Of Oxygen, Nancy C. Westby

Honors Theses

The ozonolysis of acetylenes is thought to proceed through the formation of ∝-carbonyl carbonyl oxide intermediates. This reaction has been shown to parallel the effect of molecular oxygen on ketocarbenes. Azibenzil, a diazo-ketone, will decompose to a ketocarbene by the action of heat, light or catalyst. The ketocarbene may decompose by two pathways: Wolff rearrangement and non-rearrangement. The Wolff rearrangement route will produce methyldiphenylacetate (upon addition of methanol), benzophenone, tetraphenylglycolide and possibly other high molecular weight polymeric species. The non-rearrangement pathway will presumably produce ∝-carbonyl carbonyl oxides which will decompose under varying circumstances to produce benzyl, benzoic anhydride, benzophenone, tetraphenylglycolide …

The Addition Of Singlet Oxygen To N, N-Diethyl-1-Propynylamine, Kenneth S. Zimmerman

Honors Theses

The addition of singlet oxygen to N, N-diethyl-1-pro-pynylamine produced 60-75% yields of N, N-diethyl pyruvamide and various carbon dioxide contamination products under several conditions. Products under several conditions. Product formation was independent of solvent and photosensitizer and was shown to proceed via a singlet oxygen addition mechanism with no free radical involvement. The water addition product was also demonstrated to be N, N-diethyl propanamide. A dioxetene intermediate is suggested as the precursor of N, N-diethyl pyruvamide.

The Preparation And Kinetics Of A Sterically Hindered Gold (Iii) Complex, Michael R. Golden

Honors Theses

The alkyl substituted gold (III) complex [Au(1, 4, 7-Me3dien)Cl] (PF6)2 [where 1, 4, 7-Me3dien respresents (CH3) HNCH2CH2N(CH3)CH2CH2NH(CH3)] has been synthesized. The cation of this compound differs from previously synthesized gold (III) complexes of similar structure since it can form a conjugate base only by loss of hydrogen from a terminal nitrogen. Aqueous solution chemistry studies of this ion reveals that the Cl- is hydrolyzed before loss of a proton from the ligand which is the reverse of the sequence observed with previously studied ions. Monobromo substitution rates are found to be slower than for the complex with no alkyl substitution …

Stress Analysis Of Post And Crown Restorations Of Endodontically Treated Teeth, Ronald C. Hansen

Loma Linda University Electronic Theses, Dissertations & Projects

Forty-four similar sized maxillary lateral incisor teeth were randomly divided into four equal groups to test their resistance to fracture. Group 1 teeth were the controls, no treatment was done. Group 2 teeth consisted of endodontically treated teeth, restored with composite resin in the access opening. Group 3 teeth were endodontically treated and restored with a post and flat surface standardized aluminum crown. The teeth in Group 4 were endodontically treated and restored with a post and composite resin core buildup with a cast gold crown. The metal collar of gold incorporated 1.5 mm of tooth structure below the core …

Reactions Of Diazoketones With Neighboring Carbon-To-Carbon Double Bonds, Robert James Perry

Honors Theses

It was hoped that the carbon-carbon double bond in an unsaturated diazoketone would act as a nucleophile in an intramolecular attack to give a ring closure. Experimental results indicate that the double bond did participate, but in such a manner so as to give only substituted products, rather than cyclic ones. We suggest a diazonium salt intermediate in the initial formation of these substituted products. Polymerization and oxonium formation after reactopm with a Lewis acid solvent account for the polymers formed and some of the substituted products.

Removal Of Chloroform From Drinking Water, John S. Zogorski, George D. Allgeier, Robert Lee Mullins Jr.

KWRRI Research Reports

The overall objective of this investigation was to evaluate via laboratory experiments the technical feasibility of reducing trihalomethane levels in drinking water. Special attention was directed at the removal of chloroform since: (a) it is the only trihalomethane which has been shown to be carcinogenic in animal tests; and (b) this compound generally comprises the largest fraction of the total trihalomethane content of chlorinated waters in Kentucky. Trihalomethanes are present in municipal drinking waters due to the reaction of free chlorine with naturally occurring compounds, collectively called "precursors".

A variety of treatment processes and potential modifications (or additions) to existing …

Organized Resistance To An Imposed Environmental Change: A Resevoir In Eastern Kentucky, William F. Schweri Ii, John Van Willigen

KWRRI Research Reports

This is a case study of a group organized to resist the construction of an Army Corps of Engineers reservoir project located in Eastern Kentucky, More specifically the account describes how a group of landowners organized themselves and enacted an increasingly complex strategy of resistance. Within this framework perceived costs, leadership and authority and group organization are considered.

The primary method employed in this research was that of repeated interviews with members of the resistance organization who were identified as key informants. These interviews were carried out on both structured and unstructured bases.

The formal analysis of the voluntary association …

Calculated Yields And Slowing-Down Spectra For Electrons In Liquid Water: Implications For Electron And Photon Rbe, R. N. Hamm, H. A. Wright, Robert Katz, J. E. Turner, R. H. Ritchie

Robert Katz Publications

Detailed Monte Carlo calculations have been carried out of slowing-down spectra and yields for a number of end-points for electrons in liquid water. These investigations were made to study differences in physical effects of different low-LET radiations and implications for RBE. Initial electron energies from 1 keV to 1 MeV were used, and all secondary electrons were followed in the computations until their energies fell below 10 eV. Though there are substantial differences in the slowing-down spectra at energies near and above the K-shell ionization potential of oxygen, the energy spectrum of electrons at lower energies is found to be …

Existence Of The Dielectric Constant In Fluids Of Nonlinear Rigid Polar Molecules, John D. Ramshaw

Physics Faculty Publications and Presentations

The existence of the dielectric constant epsilon is investigated for fluids composed of nonlinear rigid polar molecules. The investigation is performed using the functional-derivative approach previously employed to establish sufficient conditions for the existence of epsilon in fluids of linear (axially symmetric) molecules. It is shown that these same conditions are sufficient for nonlinear molecules of arbitrary symmetry. An expression for epsilon in terms of the direct correlation function emerges automatically from the development. This expression, which involves the inversion of a 3 x 3 matrix, is a slight generalization of one obtained earlier by Hoye and Stell using an …

Dredge Spoil Disposal With Particular Reference To Management Practices In Southern New England, Lynne A. Melville

Marine Affairs Theses and Major Papers

One-half million acres of U.S. coastal wetlands have been destroyed by dredging and filling operations since 1956. They are being destroyed at the rate of 0.5-1.0% each year. In one ten year period, Rhode Island lost 5% of its 2000 acres of wetlands to urban development, and Connecticut lost 12% of its marsh lands. Less than 1500 acres of marsh remain in Connecticut. During the course of this research project, I examined one aspect of wetland destruction - the dredging and disposal of spoil materials onto wetlands and into the coastal waters of Southern New England. What follows is a …

Magnetic Properties Of Linear Chain Systems: Metamagnetism Of Single Crystal Co(Pyridine)2Cl2, S. Foner, Richard B. Frankel, W. M. Reiff, H. Wong, Gary J. Long

Physics

The metamagnetic behavior of the low temperature properties of single crystal Co(pyridine)₂Cl₂ is discussed. At 1.25 K oriented single crystals exhibit a two‐step metamagnetic transition at applied fields ∼0.8 and 1.6 kG along the b‐axis, a single transition at ∼0.7 kG for applied fields along the a^∗ axis, and a single transition at ∼4.2 kG for an applied field along the c axis. Just above the transition fields a moment of 2μ_B/Co atom is measured for B₀ parallel to the a^∗ axis or b axis, and 0.4μ_B/Co atom is …

Magnetic Properties Of Linear Chain Systems: Metamagnetism Of Single Crystal Co(Pyridine)₂Ci₂, Simon N. Foner, Richard B. Frankel, William Michael Reiff, Herbert Wong, Gary J. Long

Chemistry Faculty Research & Creative Works

The metamagnetic behavior of the low temperature properties of single crystal Co(pyridine)₂Cl₂ is discussed. At 1.25 K oriented single crystals exhibit a two-step metamagnetic transition at applied fields ~0.8 and 1.6 kG along the b-axis, a single transition at ~0.7 kG for applied fields along the a* axis, and a single transition at ~4.2 kG for an applied field along the c axis. Just above the transition fields a moment of 2µ_B/Co atom is measured for B₀ parallel to the a* axis or b axis, and 0.4µ_B/Co atom is measured for the …

On Existence Of Extremal Solutions Of Differential Equations In Banach Spaces, V. Lakshmikantham, K. Deimling

Mathematics Technical Papers

Let X be a real Banach space, [see pdf for notation] a cone, [see pdf for notation] and [see pdf for notation] continuous. We look for conditions on X, K and f such that the IVP (1) [see pdf for notation] has a maximal solution [see pdf for notation] and a minimal solution u with respect to the partial ordering induced by K. Contrary to known results, [5,6], we shall not assume that K has interior points, since the standard cones of many infinite dimensional spaces have empty interior. The second essential new feature is that f is supposed to …

Bayes Estimation Of Reliability For Mixtures Of Life Distributions, William J. Padgett, Chris P. Tsokos

Faculty Publications

No abstract provided.

Recipe For A Moon, Edwin J. Geels

Pro Rege

No abstract provided.

Stochastic Differential Inequalities Of Ito Type, V. Lakshmikantham, G. S. Ladde

Mathematics Technical Papers

It is well known [3] that the method of differential inequalities plays an important role in the qualitative theory of differential equations. It is therefore natural to expect that a similar theory would be equally important in the study of Stochastic differential systems of Ito type. As will be seen that this investigation is not straightforward extension of the deterministic situation and needs special techniques to be utilized. In this paper, we develop the theory of stochastic differential inequality of Ito type, consider the nonnegativity of solutions, prove existence of extremal solutions and derive a comparison result.

A Primary Ecological Survey Of Dardanelle Reservoir Prior To Nuclear Facility Effluent Discharge, Clarence B. Sinclair, Robert L. Watson

Technical Reports

A preliminary ecological survey of Dardanelle Reservoir during the construction phase of Arkansas Power and Light Company's nuclear generating facility was conducted from January 1970 through June 1974. The reservoir is characterized by relatively shallow depths and a high flow-thru rate. A number of features were associated with these characteristics. The reservoir carried a great deal of suspended material and exhibited high turbidities throughout most of the year. Typical thermal stratification and oxygen depletion were only rarely observed. Many of the physico-chemical parameters exhibited relatively high values in comparison to other Arkansas lakes and reservoirs, but due to absence of …

The Prairie Naturalist Vol. 10, No. 2. June 1978

The Prairie Naturalist

ANALYSIS OF THE FLEHMEN DISPLAY IN AMERICAN BISON (BISON BISON) ▪ B. R. Mahan, M. P. Munger and H. L. Gunderson

AVIAN MORTALITY CAUSED BY A SEPTEMBER WIND AND. HAIL STORM ▪ K. F. Higgins and M. A. Johnson

DISTRIBUTION OF TWO SPECIES OF LONG-EARED BATS OF THE GENUS MYOTIS ON THE NORTHERN GREAT PLAINS ▪ J. K. Jones, Jr. and J. R. Choate

ALFALFA AND THE OCCURRENCE OF FISSURES ON THE NORTH DAKOTA PRAIRIES ▪ J. P. Bluemle, A. E Kehew, E. A. Brostuen and K. L. Harris

NOTES

An Observation of Badger Predation on Richardson Ground Squirrels ▪ …

Co2 Laser Induced Decomposition Of Freon 113, Richard S. Herrick

Honors Theses

Irradiations were made on CCl2FCClF2, Freon 113, to see if the resulting decomposition was photochemical in nature. The irradiation source was Molectron 250, continuous wave, infrared laser operating in the single line mode. The wavelength of irradiation was varied over the range 9.473 µ to 9.734 µ. The pressure except one (in which the cell window broke). Relative rates of reaction were calculated for a constant power absorbed by the sample of 7.8 ± 4W. These relative rates were plotted against the irradiation wavelength. This was superimposed on a plot of the IR band for Freon 113 which was irradiated …

Angular Differential Cross Sections For Excitation Of Atomic Hydrogen By 25-, 50-, And 100-Kev Protons, John T. Park, Judith E. Aldag, Jerry Peacher, Jacob M. George

Physics Faculty Research & Creative Works

Angular differential cross sections for the process H⁺ + H(1s ) → H⁺ (θ ) + H ( n = 2 ) are presented for 25-, 50-, and 100-keV protons incident on atomic hydrogen. The experimental results are in fair agreement with Glauber-approximation calculations.

A Study Of Treatment And Cephalometric Variables In Relation To Facial Axis Change During Treatment In A Dolichofacial Sample, Laurence A. Seifert

Loma Linda University Electronic Theses, Dissertations & Projects

The change in the facial axis in a sample of fifth-three dolichofacial patients, was compared with a number of pretreatment cephalometric variables. A number of treatment variables were also compared with the amount of facial axis change that occurred during orthodontic treatment.

The cephalometric variables measured were:

1. Facial axis
2. Upper face height (maxillary height)
3. Lower face height
4. Posterior face height
5. Mandibular arc
6. Palatal-mandibular plane
7. Palatal-occlusal plane
8. Occlusal-mandibular plane
9. Overbite
10. Upper first molar to palatal plane
11. Lower first molar to mandibular plane
12. Lower incisor to mandibular plane
13. Incisal edge of lower incisor to mandibular plane
14. Xi point to occlusal plane

Treatment …

Structural Analysis Of The Great Smoky Thrust Sheet Along The Little Tennessee River, John E. Livingston

Masters Theses

This study involves a structural analysis of a portion of the Great Smoky thrust sheet in the Great Smoky Mountains of Tennessee. Four groups of folds and related structures have been identified in this area. the earliest folds include second-order mesoscopic F1 folds with a slaty cleavage axial plane foliation (S1). These folds occur on the limbs of first-order macroscopic F1 folds which are discordant to the Great Smoky fault. In several places, the F1 folds are overprinted by mesoscopic F2 folds which are characterized by crenulation cleavage axial plane foliation (S2). F2 folds include tight to isoclinal folds with …

Water Conservation Information Dissemination During The 1997 Drought Emergency, L. Douglas James, Wade H. Andrews

Reports

As drought conditions in 1976 and 1977 became increasingly severe throughout the west and affected many other parts of the country, many states began special drought information dissemination efforts. This study was organized to provide for the exchange of information among the respective states a forum that could reduce duplication among independent efforts. The project collected information. on: A) Water-user conservation practices, 1) domestic use, a) inside use, b) outside use, 2) industrial, 3) commercial, and 4) irrigation; B) Water-supplier management practices, 1) water conservation Inducements, 2) emergency supply augmentation, a) groundwater mining, b) water harvesting, c) water reuse, 8) …