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Studies Of Fracture And Deformed Surfaces Of High Strength Aluminum Alloys By X-Ray Diffraction, Tamma K. Kumar

Mechanical & Aerospace Engineering Theses & Dissertations

X-ray observations of fatigue fracture and deformed surfaces of 7075-T6 aluminum were conducted in this study. The (111) and (222) diffraction peaks were obtained from the fractured and deformed surfaces. It was observed that in comparison with the base metal, the fracture exhibited line broadening similar to that due to cold working. The broadening is indicative of plastic deformation in the vicinity of the advancing crack tip during the fracture process. Also the different regions of fracture exhibited varying degrees of line broadening. With respect to the fatigue crack, the slow crack growth region showed a greater broadening, and, hence, …

Herbaceous Production In Burned-Cut Burned-Uncut And Control Areas Of A Chamaecyparis Thyoides (L.) Bsp (Cupressaceae) Stand In The Great Dismal Swamp, Caroline Elisabeth Mckinley

Biological Sciences Theses & Dissertations

The herbaceous layer of an Atlantic white cedar (Chamaecyparis thyoides) stand in the Great Dismal Swamp was sampled to estimate the productivity of two burned areas and a control area. The herbaceous vegetation was sampled along three transects utilizing the harvest method and productivity values were estimated using peak biomass values for each individual species. The burned-cut area had the highest productivity (3623 kg ha^-l yr^-1) and was characterized by species of the Asteraceae, Poaceae, and Cyperaceae. The burned-uncut area had a productivity value of 1636 kg ha^-1 yr^-1 with similar species of the Asteraceae …

Sir Robert Peel, 1846-1850: Unwilling Leader Of A Splinter Party, Donald A. Kerr

History Theses & Dissertations

This thesis is an examination of the last four years (1846-1850) of the life of Sir Robert Peel, Prime Minister of England. Peel was one of the great political figures in England during the 1800s, a leader of the Conservative Party for more than fifteen years, and the leading political figure in the successful fight to repeal the Corn Laws in 1846.

Following the defeat of his government in 1846 however, he declined to provide further leadership either to the party or to the small group of his close followers known as the Peelites. The effects of Peel's continued presence …

Republican Ideology And American Diplomats: The Roles Of John Jay And James Monroe, Helen Kello Hill

History Theses & Dissertations

Republican ideology is the basis of a case study of the diplomatic careers of John Jay and James Monroe. Both men were committed to a republican form of government but each perceived it differently. Likewise they viewed diplomacy and the role oi a diplomat differently. In establishing the republicanism oi both Jay and Monroe extensive use was made of their private and public correspondence. Through these letters it becomes apparent that Monroe's republican commitment fed his incipient paranoid personality in that he constantly looked homeward for approval. On the other hand, John Jay's elitist perspective did not lead him to …

Temperature And Time Dependent Viscosity Of An Elastomer Modified Epoxy Resin, Woodrow Williard Wagner Jr.

Mechanical & Aerospace Engineering Theses & Dissertations

Temperature effects on the viiscosity of an epoxy resin (diglycidyl ether of bisphenol A - DGEBA), an elastomer (carboxy terminated butadiene acrylonitrile - CTBN), and two blends containing nominally 10 percent elastomer were examined from strain rates of 0.1 sec^-1 to 10,000 sec-¹ over a temperature range from 300K to 450K. All results indicated the greatest drop in viscosity occurred for each of the materials over the temperature range of 300K to 350K. In addition, the materials exhibited Newtonian responses over the entire strain rate range, Adding small amounts of elastomer to the I epoxy only moderately effected …

Experiments In Attempted Interspecific And Interpopulational Hybridzation Of Grass Shrimp Of The Genus Palaemonetes (Caridea Palaemonidae), Mark Andrew Boston

OES Theses and Dissertations

The present study investigates the interfertility of Palaemonetes populations, Interspecific crosses were attempted between representatives of sympatric :populations of P. pugio, P. vulgaris, and P. intermedius, Intraspecific crosses were undertaken between geographically separated :populations of P. pugio. Laboratory conditions of 25°c, 25°/oo, and 14.5 hour photoperiod per day were maintained for all breeding attempts, Under these conditions interspecific hybridization of Palaemonetes pugio and P. vulgaris was not feasible. P. intermedius could not be hybridized with P. pugio and P. vulgaris. At 40 days of age P. pugio juveniles were significantly larger than P. vulgaris juveniles of …

The Response Of An Idealized Continental Shelf To Atmospheric Forcing, Paul Francis Moersdorf

OES Theses and Dissertations

The response of continental shelf water to cooling and wind stress is investigated using a two-dimensional numerical model. The topography of the east coast continental shelf was idealized by connecting a shallow (50 m) rectangular nearshore basin to a deeper (100 m) rectangular offshore basin. Numerous cases were examined using a wide range of values for both the air•sea temperature difference and the Wind speed, although the direction of the wind was always perpendicular to the coast.

The model predicts large excursions of shelf water offshore, and the subsequent surfacing of lower waters. Upwelling velocities of close to five meters …

Complementary Extremum Principles, J. Swetits, C. Rogers

Mathematics & Statistics Faculty Publications

Important complementary extremum principles are generated without recourse to general variational theory. The results are illustrated by an application to a class of boundary value problems in Magnetohydrodynamics.

The Reproductive Cycle Of Microtus Ochrogaster In Eastern Kansas, Robert K. Rose, Michael S. Gaines

Biological Sciences Faculty Publications

About 800 Microtus ochrogaster were live—trapped at biweekly intervals from May 1971 through March 1973 in 3 grassland study areas in eastern Kansas, USA. Details of reproduction were determined by autopsy. Population density increased through the first winter, reached a peak in April 1972, then declined sharply during that summer and beyond. Body length, but not body mass, tended to be positively related to density. Both sexes matured at about the same weight; development was somewhat prolonged during the winter months, especially in the winter preceding the population peak. Pregnancy rates were high, approaching maximal iteroparity, throughout the study, with …

Approximation By Discrete Operators, J. J. Swetits, B. Wood

Mathematics & Statistics Faculty Publications

A discrete, positive, weighted algebraic polynomial operator which is based on Gaussian quadrature is constructed. The operator is shown to satisfy the Jackson estimate and an optimal version is obtained.

The Relationship Of Bottom Sediments To The Current-Generated Topography On Crumps Bank And Willoughby Bank, Southern Chesapeake Bay, Virginia, Eugene Robert Brush

OES Theses and Dissertations

Crumps Bank and Willoughby Bank in Southern Chesapeake Bay are an area of varying topography. The area is bounded by two large bridge-tunnel spans, the dredged Thimble Shoal Channel borders it to the north, and the Ocean View section of Norfolk, Virginia lies to the south. The purpose of this investigation is to determine the relationship of the bottom sediments of Crumps Bank and Willoughby Bank.to the current-generated topography, and that this topography is the result of tidal currents.

The bathymetry, bottom sediment characteristics, bottom tidal currents, and the correlation of depth to various sediment parameters were examined to determine …

A Math Curriculum For Retail Buying (Ecide 306) Old Dominion University, Betty Bradshaw

OTS Master's Level Projects & Papers

The problem was to determine what math skills should be taught in the Retail Buying class (ECIDE 306) at Old Dominion University. Given the determination of math required, a second phase as to develop a competency based curriculum guide to be used.

A Comparative Study Of The Practices Followed By Selected Colleges And Universities In Placing Students With Previous Typewriting Experience In The Various Levels Of College Typewriting Instruction, Patricia Tynes Tompkins

OTS Master's Level Projects & Papers

The primary purpose of this research is to make a comparative study of the ways that selected colleges and universities in the Southern Business Education Association region handle the problem of placing students with prior typewriting instruction into the various levels of college typewriting instruction.

The Results Of Four Oceanographic Cruises In The Georgia Bight, L. P. Atkinson

CCPO Publications

During 1973 and 1974 we conducted four oceanographic cruises in the Georgia Bight with the purpose of gaining background seasonal data with which to plan more scientific experiments. In this technical report the data are presented in graphical form with interpretation. The data itself was published in two technical reports (Atkinson, 1975 and 1976). Some of the interpretations in this report will be given in more detail in published journal articles.

The Chemical And Biological Effect Of A Gulf Stream Intrusion Off St. Augustine, Florida, Larry P. Atkinson, Gustav-Adolf Paffenhöfer, William M. Dunstan

CCPO Publications

During a 3-day anchor station in shelf waters off St. Augustine, Florida we observed the effect of an intruding mass of deeper Gulf Stream water. The shelf waters were relatively low in nutrients and salinity while the Gulf Stream waters were high in salinity and nutrients. Onshore currents correlated with increases in nitrate and chlorophyll concentrations.

The advection of higher nutrient Gulf Stream water coincided with high chlorophyll (∼ mg chl a m⁻³) concentrations and dense populations of Phaeocystis pouchetii (up to 3.12 × 10°1⁻¹). Zooplankton sampling was impossible in the bottom layer because of the …

Troubadour, 1978, Old Dominion University

University Yearbooks

1978 yearbook of Old Dominion University

The Cognitive Ability Requirements Of Vocational Education: A Role For Elementary Industrial Arts, E. Bryan Newsome

OTS Master's Level Projects & Papers

The problem associated with substituting vocational education for general education is examined in three areas: 1. the vocational development patterns of American students; 2. the skills necessary for occupational success; 3. the skills required for vocational training.

A Follow Up Study Of I. C. Norcom High School Machine Technology Graduates, Robert Benjamin Shirk

OTS Master's Level Projects & Papers

This study sought to identify the accountability of the machine technology curriculum at I. C. Norcom High School. The perception of the curriculum graduates and their employers were utilized in this study to answer three basic questions: 1) What percentage of the curriculum graduates are now employed in occupations relating to machine technology and/or allied occupations? 2) What is the effectiveness of the machine technology curriculum as observed by the graduates of the curriculum for the attainment of employment? 3) What is the effectiveness of the machine technology curriculum for preparing the graduates for employment as observed by the employers …

The Effects Of The Couples Communication Program On Marital Communication And Perceived Satisfaction With The Relationship, Candace Barbara Waller

Psychology Theses & Dissertations

The increasing popularity of marital enrichment programs suggests a need for a systematic analysis of their effectiveness. Earlier evaluative studies contained numerous methodological shortcomings, making it difficult to draw inferences about enrichment-induced change. Twenty married couples participated in the Couples Communication Program (CCP) or a placebo control group. Measures of marital communication and perceived marital adjustment were obtained prior to the program, at the conclusion of the program and at a one month follow-up. The simulation measure of communication indicated that the experimental couples learned the skill taught in the CCP. However, there was no significant change in marital satisfaction. …

The Priest In Gulliver's Travels, Mary Virginia Green Mathews

English Theses & Dissertations

Dr. Jonathan Swift was a priest of the Church of England. For a sermon, he wrote: "I look upon myself, in the capacity of Clergyman, to be appointed by providence for defending a post assigned me, and for gaining over as many enemies as I can." He is ever-present in the role of priest in Gulliver's Travels. The Anglican Church is a State Church. For centuries it has taught profound truths through ritual and symbolism. Dr. Swift used Christian symbolism and political allegory in Gulliver's Travels, being fully aware that his contemporary readers would perceive and understand the underlying dimension …

The Problem Of Social Change As Seen In The Life And Work Of Jean Jaurès And George Sorel, Frances Boyce Glover

History Theses & Dissertations

The purpose of this thesis is to determine the place of the thought of Jean Jaures and Georges Sorel in the continuum of the French revolutionary search for a social and political order that would protect individual liberty and guarantee justices Biographical sketches, showing the influences that helped to shape the thought of Jaures and Sorel are followed by an analysis of their concepts of liberty and justice as the motivation for change, The major aspects of the works and careers of each are studied to determine how consistent they were. There was an underlying consistency in their thought. Both …

Selected Letters From The Parker Family Papers: The Correspondence Of Margaret Parker, Carmeline V. Zimmer

History Theses & Dissertations

This thesis is a collection of the correspondence of Margaret Parker (nee Ellegood), an eighteenth century Norfolk merchant's wife, The fifty-seven items, which cover the years from 1760 through 1785 and deal mainly with domestic matters, were transcribed from the microfilms of the Parker Family Papers, 1760-1795, Walter Minchinton, general editor {Micro Methods Ltd,,1964). The transcriptions have been arranged chronologically, annotated, and supplemented with background material concerning the Ellegood and Parker families, the history of Norfolk Borough and Princess Anne County, and the place, of women in eighteenth century society.

Description Of The Larval Development Of Squilla Empusa Say (Crustacea Stomatopoda) With Aspects Of Larval Ecology In Chesapeake Bay, Steven Gaines Morgan

OES Theses and Dissertations

Larvae of Sguilla empusa were collected from the plankton and were reared in the laboratory to describe the pelagic larval development and the postlarval stage. Nine pelagic stages are passed through before the postlarval stage is attained.

The larvae reared for descriptive purposes were subjected to sixteen combinations of temperature and salinity to determine their tolerance to the two parameters. Larvae survived longer and molted more frequently when reared at 25°/oo and 20°C or 25°C, which corresponds to the natural conditions of the Chesapeake Bay when the larvae were collected.

A three year planktonic survey conducted in the lower region …

A Study Of The Gas-Solid Reaction Between Hydrogen Sulfide And Mercury(I) Chloride; Development Of A Method For Determination Of Atmospheric Hydrogen Sulfide, Eric H. De Carlo

Chemistry & Biochemistry Theses & Dissertations

The possibility of measuring hydrogen sulfide indirectly by measuring the mercury evolved from the gas-solid reaction between hydrogen sulfide and mercury(I) chloride was studied. DMCS treated glass wool was coated with mercurous chloride and used as a conversion material. The response to hydrogen sulfide was studied as a function of concentration and temperature. The possible interference of other sulfur gases and water was examined.

The studies indicated that hydrogen sulfide could be determined at concentrations as low as 15 ppb. It was found that mercaptans would actively interfere with the hydrogen sulfide to mercury conversion, but that sulfur dioxide would …

Suspended Matter And Light Attenuation In A Turbid Estuary, Daniel E. Campbell

OES Theses and Dissertations

A study was made in Hampton Roads, Virginia, to characterize the suspended matter and to investigate its relationship to the light attenuation coefficient. The study gives a detailed description of the seston and its variations with time and space. An evaluation of the light attenuation coefficient as an indicator of seston distributional parameters was made.

The distribution of the suspended matter is obtained through gravimetric, Coulter counter and microscopic analyses. Microscopic analysis is employed to determine the composition of the seston and ATP determinations give the amount of living biomass. The suspended matter is characterized in terms of weight, numbers, …

Unifying Principles In The English Renaissance Sonnet Sequence, Deborah Fairfield Heatwole

English Theses & Dissertations

In this thesis, the structural and thematic development of the English sonnet sequence during the years of its greatest vogue is examined in detail. The sonnet itself, as the basic unit of the structure of a sequence, is analyzed, and the various characteristics of the sequences themselves are investigated. The sequences of Sir Philip Sidney, Edmund Spenser, Samuel Daniel, and Michael Drayton are discussed in separate chapters.

The basic contention of this thesis is that, while many sonnet "cycles" are mere collections of discrete sonnets, the major sonnet writers of this period constructed sequences that are highly organized along stylistic, …

Optimal Control Of A Large Space Telescope Using An Annular Momentum Control Device, Arun Anant Nadkarni

Mechanical & Aerospace Engineering Theses & Dissertations

Application of a new development in the field of momentum storage devices, the Annular Momentum Control Device (AMCD), to the twin problems of large angle maneuvers and fine pointing control is considered. The basic concept of the AMCD consists of a spinning rim, with no central hub area, suspended by a minimum of three magnetic bearings, and driven by a noncontacting electromagnetic spin motor. The dissertation considers in detail the design of an optimal controller to achieve both large angle maneuvers and the fine pointing control of a Large Telescope (LST) with a single configuration, consisting of a single AMCD …

A Follow-Up Study Of Graduates Of Undergraduate Teacher Education Programs Of Old Dominion University, 1973-1976, Gerald F. Patout

Teaching & Learning Theses & Dissertations

No abstract.

Sediment Interstitial Dissolved Mercury And Carbon Relationships In An Artificial And Natural Marsh, James River, Virginia, Apostolos Katsaounis

OES Theses and Dissertations

Thirty six sediment cores were collected during August, 1976 and January, 1977 in order to examine the relationships between dissolved organic carbon and total dissolved mercury in the interstitial water of two marshes located near Windmill Point, James River, 16 km downstream from Hopewell, Virginia. The Windmill Point marsh development site is a dredged material disposal island in the James River. The reference marsh which does not contain dredged material, is located 2.3 km upstream at Ducking Stool Point.

The concentrations of dissolved organic carbon and total dissolved mercury showed no significant difference between the two marshes. Trends in the …

Samuel Becket's Use Of "Silence", Russell V. Watkins

English Theses & Dissertations

Silence is an important aspect of modern literature. No other living writer has made more adept use of silence in his fictional works than has Samuel Beckett. In this thesis submitted in partial fulfillment for the M.A. degree in English, I provide an in-depth study of Beckett's use of silence both in his prose works and in his plays. Not only does this thesis provide an in-depth study of Beckett's use of silence, but it also provides a brief survey of how Beckets use of silence has gradually evolved in his fictional works, and comments on the significance of …