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Coal Mine Productivity Assessment As Influenced By Equipment Reliability And Availability., Francisco Lopez Viray
Coal Mine Productivity Assessment As Influenced By Equipment Reliability And Availability., Francisco Lopez Viray
Graduate Theses, Dissertations, and Problem Reports (ETD)
Feasible methods, measures and models which can be used to assess the availability of a continuous mine system are developed. The models, based on a simplified representation of room-and-pillar mining, are derived using the principles of Markov processes. A new measure of system reliability and performance, called the penalized availability is defined. This measure can be applied to any process flow system whose output may be derated due to failures of certain components. Three reliability indices which measure coal productivity in terms of equipment reliability and maintainability are defined. These indices are linearly related to the penalized availability by such …
"O Mother, Mother: What Have You Done"?: Shakespeare's Mothers In Relation To Catastrophe., Betty Jeannine Norvell
"O Mother, Mother: What Have You Done"?: Shakespeare's Mothers In Relation To Catastrophe., Betty Jeannine Norvell
Graduate Theses, Dissertations, and Problem Reports (ETD)
As the title, "O Mother, Mother! What Have You Done"?: Shakespeare's Mothers in Relation to Catastrophe," suggests, this study explores the connection of Shakespeare's mother figures with plot catastrophe. As background procedure, Renaissance thought is studied in terms of its roots in the works of Plato and other Classical Greek writers, and of Augustine and Aquinas and other Medieval writers, particularly in terms of the significance of the concept of chaos and catastrophe, and its antithesis, order. Then Renaissance documents are analyzed to determine Renaissance attitudes toward women, and, in particular, mothers, and their relationship to the social and moral …
Cost-Effectiveness Analysis Of Back-Up Reinforcers In A Token Economy., David Andre Lombardi
Cost-Effectiveness Analysis Of Back-Up Reinforcers In A Token Economy., David Andre Lombardi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The present study involved an examination of cost-effectiveness analysis of two types of back-up reinforcers (high-cost, low-cost) in a token economy program. Subjects were ten adult institutionalized retarded females who earned tokens for completion of three unit management and three recreation target behaviors. Tokens were redeemable for one of two types of back-up reinforcers, either high-cost or low-cost reinforcers. Classification of reinforcers into one of the two types was primarily related to whether or not they involved a monetary expenditure that was frequent and necessitated fiscal programmatic planning. The experimental design utilized was a reversal design with subjects divided into …
The Modification Of Children's Behavior During Blood Work Procedures., Miriam A. Zabin
The Modification Of Children's Behavior During Blood Work Procedures., Miriam A. Zabin
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to investigate the efficacy of filmed modeling and distraction techniques in the modification of children's behavior during blood work procedures. Subjects were 48 children between the ages of six and eleven who were referred for this procedure by the Cardiology, Neurology, and Hematology Clinics. While reasons for referral varied, some common reasons included possible heart murmur, possible seizure activity and abnormal blood counts. Prior to their laboratory work, children in the Modeling group viewed a videotape that depicted two children experiencing the blood work procedures. The children's behavior and verbal remarks were characteristic of …
Biogeochemical Relationships In Sphagnum-Dominated Wetlands In West Virginia., Robert Kelman Wieder
Biogeochemical Relationships In Sphagnum-Dominated Wetlands In West Virginia., Robert Kelman Wieder
Graduate Theses, Dissertations, and Problem Reports (ETD)
An in-depth investigation of Big Run Bog, a 15 ha Sphagnum-dominated wetland situated in a 291 ha forested watershed in the unglaciated Appalachian Mountains of West Virginia, has indicated that (1) because of its low-lying physiographic position within its watershed, Big Run Bog receives runoff from the surrounding upland areas, and thus is not an ombrotrophic bog but rather is a minerotrophic fen, (2) physical and chemical properties of the peat and the chemistry of surface and subsurface water were comparable to values reported for Sphagnum-dominated wetlands in the glaciated regions of eastern North America, (3) spatial variation in hydrologic …
Utilization Of Resources Through Information Systems Planning In Higher Education., Glenn Devon Crowe
Utilization Of Resources Through Information Systems Planning In Higher Education., Glenn Devon Crowe
Graduate Theses, Dissertations, and Problem Reports (ETD)
Today, higher education administration's task is one of unprecedented complexity. The multiple burdens provide sufficient reason for real interest in utilization of effective information systems. Consequently, new functions affecting the production, retention, and delivery of information have emerged. This study is not about the computer as such, but how to use it, what administrative information it can provide, and academically, how to let it serve higher education's purposes more sensitively and beneficially. The immediate and long-term information needs of a selected university were identified under the philosophy that good administrative use of the computer can help preserve educational resources in …
A Financial Analysis Of Private Liberal Arts Colleges, John Scott Cunningham
A Financial Analysis Of Private Liberal Arts Colleges, John Scott Cunningham
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study is an assessment of the financial condition of a consortium of small private liberal arts colleges. Its conceptual framework consists of an ex post facto investigation of audited financial statements utilizing ratio analysis procedures developed by Peat, Marwick, and Mitchell and John Minter Associates to research hierarchical relationships between two sets of ratios: the Balance Sheet Ratios, which describe financial results, and Operating Ratios, which indicate the causes of the results. Intragroup comparisons among the institutions of the East Central College Consortium and intergroup comparisons with two sample groups randomly selected because of geographic proximity to the Consortium …
Motor Skill Acquisition As A Function Of The Post-Knowledge Of Results Delay Interval And Task Complexity., Jimmy Patrick Timmons
Motor Skill Acquisition As A Function Of The Post-Knowledge Of Results Delay Interval And Task Complexity., Jimmy Patrick Timmons
Graduate Theses, Dissertations, and Problem Reports (ETD)
Schmidt (1975) and Weinberg, Guy, and Tupper (1964) have expressed the expectation that post-KR delays in simple to complex motor tasks must increase as task complexity increases if the rate of acquisition is to be maintained. This study was an attempt to investigate that prediction. Nine treatment conditions were established by the interaction of three levels of post-KR delay with three levels of task complexity. Volunteer subjects (N = 10 for each treatment condition) were male undergraduate and graduate students at West Virginia University during the summer of 1979. Twenty trials were received by each subject; the first ten were …
Some Aspects Of Fluidized Bed Coal Combustion And Their Effect On Fbc Modeling., Ranga Rao Pattipati
Some Aspects Of Fluidized Bed Coal Combustion And Their Effect On Fbc Modeling., Ranga Rao Pattipati
Graduate Theses, Dissertations, and Problem Reports (ETD)
Fluidized bed combustion offers a clean and relatively inexpensive method for coal combustion. There are various physical and chemical processes occurring in the fluidized bed combustor, some of which are investigated in this work. Devolatilization and combustion of a single coal char particle, minimum fluidization velocity at high temperatures, fluidization regimes, and SO(,2) release rates in FBC are the areas examined in this work. The mode of release of volatiles can be instantaneous or uniform depending on the relative magnitudes of mixing time and devolatilization time. The burnout time of large coke particles (> 2 mm) can be as high …
Electromagnetic Geophysical Tomography Incorporating Refraction And Reflection., Roger Dale Radcliff
Electromagnetic Geophysical Tomography Incorporating Refraction And Reflection., Roger Dale Radcliff
Graduate Theses, Dissertations, and Problem Reports (ETD)
An accurate technique for remotely determining the internal structure of an object or underground environment would have a significant impact in mining, geoexploration, and the life sciences. This process of resolving the intrinsic properties of an object or environment by the transmission of X-rays or electromagnetic waves through the unknown anomaly is known as reconstructive imaging or tomography. Several efforts have been made to apply tomographical methods to electromagnetic measurements taken between two boreholes on either side of an unknown geophysical structure. However, it became necessary, because of the nature of existing reconstruction methods, to assume a straight-line propagation path …
Power Determination For Mobile Mining Equipment., Gene Thomas Lineberry
Power Determination For Mobile Mining Equipment., Gene Thomas Lineberry
Graduate Theses, Dissertations, and Problem Reports (ETD)
A piece of mobile mining equipment must possess sufficient power to overcome normal resistances and also resistances whose prediction and quantification is much more difficult, such as those accompanying cyclic maneuvers and emergencies. These abnormal, highly variable resistances require a quantity of reserve power. The sum of reserve power, required power, auxiliary power, and ambient corrections represents the total power requirement. Reserve power is traditionally defined as "the additional power available to a vehicle for climbing grades and for acceleration." In this study, reserve power was redefined as "the power available to a vehicle in addition to that necessary to …
Ion-Exchange Properties Of Chemically And Physically Modified Graphite., Thomas Matthew Matviya
Ion-Exchange Properties Of Chemically And Physically Modified Graphite., Thomas Matthew Matviya
Graduate Theses, Dissertations, and Problem Reports (ETD)
Organic compounds capable of ion-exchange were adsorbed on granular graphite. The ion-exchange capacity of the graphite modified in this manner was found to be limited to (DBLTURN) 10('-6) eq/g of graphite by the available surface area of the graphite. Acidic surface oxides on the graphite interfered with the determination of the contribution of the adsorbed organic compounds to ion-exchange. An electrically conductive ion-exchange medium was developed by partially oxidizing granular graphite with strong oxidizing agents. The reaction of graphite with K(,2)Cr(,2)O(,7) in concentrated H(,2)SO(,4) was extensively studied. The ion-exchange capacity of the oxidized graphite for H('+) and divalent metal ions …
The Impact Of Health Locus Of Control And Health Value On Self-Care Health Behavior., Dolores L. Floria
The Impact Of Health Locus Of Control And Health Value On Self-Care Health Behavior., Dolores L. Floria
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine the relationships of health locus of control and health value to perceived self-care health behavior of undergraduate students. The Multidimension Health Locus of Control Scales (Form A), developed by Wallston, Wallston, and DeVellis (1978) were used to measure the respondents' beliefs regarding health locus of control. The respondents' health values were assessed through use of the Rokeach Terminal Value Scale (1973), which was modified with the addition of the term health. The Exercise of Self-Care Agency Scale, developed by Kearney and Fleischer (1979) was used to measure the respondents' perceptions of their …
A History Of Game Preservation In British East Africa, 1895-1963., Thomas Paul Ofcansky
A History Of Game Preservation In British East Africa, 1895-1963., Thomas Paul Ofcansky
Graduate Theses, Dissertations, and Problem Reports (ETD)
East Africa's wildlife is justly famous. This study examines the difficulty of preserving large numbers of wild animals in societies committed to widespread and rapid economic development. In Kenya the colonial administration had to devise a policy that would enable a rapidly expanding European settler community to live side by side with hundreds of thousands of potentially destructive wild animals. As far as Uganda was concerned, the authorities had to prevent the country's elephant herds from destroying agricultural crops without destroying them. Tanganyika's situation was even more complex. A large number of European and African farmers believed that the only …
A Survey Of The Health Knowledge, Health Behaviors, And Awareness Of The Consequences Of Health Related Behaviors Of Selected Elementary School Students In The Public Schools Of West Virginia., G Douglas Elliott
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine the current status of health education instruction in selected West Virginia public elementary schools. The study was devised to: (1)assess selected elementary school classrooms; (2)survey the teacher of each classroom; (3)ascertain the present existence and status of health knowledge, health behaviors, and awareness of the consequences of health related behaviors of elementary school students. The study was limited to randomly selected fourth and sixth grade students from a total of eighty-five classrooms. A pilot study was undertaken to establish reliability of the student inventory and determine vague or inappropriate items. A comparison …
Alkali Release From Model Coal Compounds., Ashok Chakrabarti
Alkali Release From Model Coal Compounds., Ashok Chakrabarti
Graduate Theses, Dissertations, and Problem Reports (ETD)
Alkali materials exist in coal in both inorganic and organic forms. As a means of studying the release of alkali material from the organic phase, sodium and potassium benzoate have been chosen as model compounds. The decomposition of these two compounds, in terms of both gaseous species and residues, have been studied in argon, carbon dioxide, and air. Thermogravimetric methods were used to determine the different ranges where decomposition occurred and to obtain kinetic information. Pyrolysis-gas chromatography was used to identify the various organic products formed from the decomposition of the benzoates below 600(DEGREES)C. Transpiration mass spectrometry at pressures up …
Major Components In The Field Of Professional Security Practice., Joseph Martin Cali
Major Components In The Field Of Professional Security Practice., Joseph Martin Cali
Graduate Theses, Dissertations, and Problem Reports (ETD)
The problem involved in this study was that of identifying major components in the field of professional security practice and determining their perceived importance as instructional content groupings for security practitioner preparatory programs. This study was undertaken by the investigator for the purpose of providing research based information which should be useful in structuring security courses and curricula for security practitioner preparatory programs. The investigator identified and grouped 67 security components by area, based upon a review of professional literature pertaining to security practice. Six Security Collegiate Faculty jurors assisted the investigator in refinement of the formulated security components by …
The Antioxidant Effects Of Non-Steroidal Anti-Inflammatory Drugs And Ketamine Against Polymorphonuclear Myeloperoxidase Dependent Bactericidal Mechanisms As Measured By Luminol-Enhanced Chemiluminescence., Gary Michael Pekoe
Graduate Theses, Dissertations, and Problem Reports (ETD)
The interaction of myeloperoxidase (MPO) with H(,2)O(,2) and Cl('-) provides a potent cytotoxic/antimicrobial system for polymorphonuclear leukocytes (PMNs). MPO-related cytotoxicity may be associated with the formation of toxic oxidant MPO intermediates, OCl('-), or both. MPO itself is able to oxidize drugs and cellular components. Non-steroidal anti-inflammatory drugs (NSAIDs) able to act as antioxidant free radical scavengers are shown in this study to inhibit luminol-enhanced chemiluminescence (CL) which results from the MPO-H(,2)O(,2)-Cl('-) interaction. CL is a measure of the production of oxygen-centered free radicals by this reaction. The source of CL which these NSAIDs affect is not OCl('-), once thought to …
A Descriptive Analysis Of Selected Korean Ethnic Schools In The United States., Dong Ha Lee
A Descriptive Analysis Of Selected Korean Ethnic Schools In The United States., Dong Ha Lee
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to assess the ethnic education of the Korean immigrants' children and to analyze the operations of the Korean ethnic schools in the United States. Two questions were investigated in this study: (1) What were the ethnic educational needs of the Korean immigrants insofar as the socio-psychological environments of the Korean ethnic schools were concerned? (2) How were the Korean schools being operated to meet such needs? The literature review and case study method were utilized to answer the research questions. Four schools were selected for the case study in the Eastern United States. The …
The Design, Implementation And Evaluation Of A Parent Support Program For Kindergarten Students., Thomas Erville Richey
The Design, Implementation And Evaluation Of A Parent Support Program For Kindergarten Students., Thomas Erville Richey
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to design, implement and evaluate a program involving parents in teaching reading skills. Three procedures for parental involvement were employed to determine which was most effective in enhancing the reading skill performance of kindergarten students. A total of 136 kindergarten children received pre and post tests of The Wisconsin Tests of Reading Skills Development: Word Attack and Comprehension, Level A. All subjects' verbal abilities were determined by The Peabody Picture Vocabulary Test. Parents of all subjects received their children's reading pretest scores. One set of parents received materials and training that allowed them to …
Combustion In Underground Coal Conversion., Joseph George Massaquoi
Combustion In Underground Coal Conversion., Joseph George Massaquoi
Graduate Theses, Dissertations, and Problem Reports (ETD)
A comprehensive one-dimensional model for the simulation of combustion of wet coal has been developed taking into account (i) the vaporization of coal moisture and the existence of a moving evaporation front, (ii) pyrolysis and char/gas reactions occurring in the dry coal zone, (iii) molecular diffusion and Darcy flow through the coal, (iv) variation in porosity and permeability of the coal, (v) temperature dependence of the physical properties of the coal, (vi) transpiration cooling effect of the water vapor and pyrolysis gases, (vii) multi-component diffusion in the ash and gas film, and (viii) oxidation reactions in the ash. The model …
The Development Of A Computer-Assisted Vocational Guidance System For Use In Rehabilitation Counseling., George Muir Mcguire
The Development Of A Computer-Assisted Vocational Guidance System For Use In Rehabilitation Counseling., George Muir Mcguire
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to accomplish two specific goals: (1)The selection and field-evaluation of a vocational abilities test and an occupational interest test for use as client assessment instruments to aid in the vocational planning stage of the rehabilitation process, and (2)the construction of a computerized vocational guidance delivery system based upon the interest and abilities tests which were selected in the fulfillment of Goal 1. In accomplishing the first goal, the selection of the tests was done by a careful evaluation of Vocational Rehabilitation practices through an extensive literature review and firsthand observation of these practices in …
Self-Care Orientation Of Associate Degree And Baccalaureate Degree Nursing Students: Test Of A Causal Model, Jacqueline Stemple
Self-Care Orientation Of Associate Degree And Baccalaureate Degree Nursing Students: Test Of A Causal Model, Jacqueline Stemple
Graduate Theses, Dissertations, and Problem Reports (ETD)
Causal modeling was used to examine the effects of educational program, age, belief in internal locus of control, belief in control by chance, belief in control by powerful others, and the influence of exercise of self-care agency on self-care orientation to nursing. The relationship between self-care orientation and nursing systems orientation was also investigated. The causal model was developed by using a sample of 77 nursing students from a National League for Nursing (NLN) accredited baccalaureate degree nursing program and tested by using a sample of 297 nursing students, from NLN accredited degree and baccalaureate degree nursing programs. The nursing …
A Comparative Evaluation Of Aerobic Exercise And Self-Management Strategies In The Treatment Of Cigarette Smoking, Thomas Joseph Howley
A Comparative Evaluation Of Aerobic Exercise And Self-Management Strategies In The Treatment Of Cigarette Smoking, Thomas Joseph Howley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recently, health providers have been concerned with effective strategies for the treatment of smoking. Previous treatment efforts in this area have resulted in the suggestion for comprehensive treatment programs including the use of increased exercise activity. In addition, previous research has documented the need for improved methodology in the population assessed, reliability of outcome measures and adherence to treatment programs. The present study examined the effects of four conditions on the reduction of cigarette smoking on a community population. There were: Exercise-Alone, Self-Management training, Combination of Self-Management and Exercise, and a Delay of Treatment control condition. All subjects were pre- …
Simulation Of Hydraulic Fracturing Of Coal., Subhotosh Khan
Simulation Of Hydraulic Fracturing Of Coal., Subhotosh Khan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The parameters affecting the hydrofracturing of coal were investigated through laboratory experiments and theoretical analyses. Effects of (i) fluid flow rate, (ii) confining stresses, (iii) orientation of material axes, and (iv) fluid viscosity were studied experimentally. Equations relating the ultimate tensile strength of coal as a function of confining stresses were developed. The expressions for crack tip stresses around a crack in an anisotropic material were used along with the results of previously performed experiments to show that the maximum normal stress criterion should be used in the fracture mechanics model of Pittsburgh coal. A computer simulation technique for crack …
The Rebec: An Orthographic And Iconographic Study. (Volumes I And Ii)., Margaret Anne Downie
The Rebec: An Orthographic And Iconographic Study. (Volumes I And Ii)., Margaret Anne Downie
Graduate Theses, Dissertations, and Problem Reports (ETD)
Most musical instruments of Western European culture have been studied and defined; however, no systematic study has yet been made for the instrument commonly known as the rebec (or rebeck). General reference sources and musicological studies which mention the rebec often provide discrepant, vague, and erroneous information. The current interest in the performance of Medieval and Renaissance music and the reproduction of instruments upon which this music might have been played has created a need, among performers and instrument makers, for specific, primary source information concerning the rebec. The use of the rebec in Western Europe can be documented through …
A Hydrogeologic Study Of The Greenbrier Limestone Karst Of Central Greenbrier County, West Virginia., Sara Anne Heller
A Hydrogeologic Study Of The Greenbrier Limestone Karst Of Central Greenbrier County, West Virginia., Sara Anne Heller
Graduate Theses, Dissertations, and Problem Reports (ETD)
The study area covers approximately 80 square miles of the outcrop extent of the Middle Mississippian Greenbrier Group in central Greenbrier County, West Virginia. This sequence of sedimentary rocks, primarily limestones, is approximately 800 feet thick, strikes about N25(DEGREES)E, and generally dips less than 10 degrees to the northwest. The study area is predominated by broad, asymmetric, and northeast-trending folds of low plunge, and several roughly en echelon reverse faulty-fold complexes. A major photolineament trend exists at N30(DEGREES)E to N45(DEGREES)E. Areas of high photolineament density roughly correspond to mapped structures. Three major aquifers were identified in the Greenbrier Group by …
An Assessment Of Management Policies And Procedures Of Sports Centers In England., William Raymond Tancred
An Assessment Of Management Policies And Procedures Of Sports Centers In England., William Raymond Tancred
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study was conducted to investigate the role of six problematic areas in one hundred sports centers in England and to determine if standards for management policies and procedures did exist among various types of sports centers, namely, education, public, and joint provision. Another major purpose was to compare five sports centers selected by a vote of one hundred sports center managers as being the most effective in England in terms of the six areas of consideration with that of the randomly selected institutions. A descriptive survey questionnaire on management practices was utilized to solicit information from the subject sports …
Frank D. Sills: His Impact On East Stroudsburg State College., Kenneth O. Sisson
Frank D. Sills: His Impact On East Stroudsburg State College., Kenneth O. Sisson
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of the study was to conduct a historical research concerned with Frank D. Sills as related to his administrative years at East Stroudsburg State College, East Stroudsburg, Pennsylvania. It records his accomplishments, and accentuates his contributions to the college during the years he served as Director of Health and Physical Education, the Graduate School and as President. The study serves as a historical reference for those surveying administration, especially in regard to Sills' background, his techniques, and his affectuations forged in real life-evolving situations. Procedures for accumulating cause and effect data include: the study of existing East Stroudsburg …
Talking To A Whirlwind: The Loyalist Printers In America, 1763-1783, George Edward Cullen
Talking To A Whirlwind: The Loyalist Printers In America, 1763-1783, George Edward Cullen
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation tells the story of the Loyalist printers of Revolutionary America. They numbered 34, varying in degree from those who adhered to the crown as a matter of principle, to those who merely wanted to be on the winning side, and still others whose loyalism was due to circumstances of time and place. No attempt has been made to provide a blanket "why" for the actions of the Loyalist printers; each is treated as the individual he was and the reasons for his actions are examined on that basis.