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Graduate Theses, Dissertations, and Problem Reports (ETD)

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Intraindividual Variability And Relations Between Daily Affect And Physical Activity Among Community -Dwelling Older Women, Jenessa C. Steele Dec 2004

Intraindividual Variability And Relations Between Daily Affect And Physical Activity Among Community -Dwelling Older Women, Jenessa C. Steele

Graduate Theses, Dissertations, and Problem Reports (ETD)

The current study investigated individual and group-level daily relations between affect and physical activity among 37 non-sedentary community-dwelling older women. The study expected that (a) positive affect would hold a significant, positive synchronous relation with physical activity and (b) negative affect would hold a significant, negative synchronous relation with physical activity over six consecutive days. Women over age 55 (M = 71.5, SD = 9.4) participated by completing four daily assessments (8am, 12pm, 4pm, 8pm) of positive and negative affect and physical activity on a hand-held computer Monday through Saturday. Affect was measured using the Positive and Negative Affect Schedule …

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Students' And Instructors' Attitudes Toward Using Biometric Technology As An *Identification Method In Online Courses, Wafi Albalawi Dec 2004

Students' And Instructors' Attitudes Toward Using Biometric Technology As An *Identification Method In Online Courses, Wafi Albalawi

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated the social and cultural issues related to the implementation of biometric technology at the College of Human Resources and Education at West Virginia University. The study employed both quantitative and qualitative research methodologies. The researcher verbally interviewed five instructors and five graduate students. The quantitative research methods employed two surveys. The research population involved 30 instructors and 189 graduate students. The researcher utilized independent-sample t-tests to compare different groups. The results obtained from this research support the following: (1) there is a real privacy concern among instructors and students regarding the implementation of biometric technology, (2) religious …

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Mathematical Writing In The Elementary Classroom, Dana D. Mccauley Dec 2004

Mathematical Writing In The Elementary Classroom, Dana D. Mccauley

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study, fourth and fifth grade students at River View Elementary participated in mathematics activities requiring written and oral dialogue. These dialogues were analyzed to determine how their mathematical understandings were reflected in their written and oral discussions. An examination of pre and post mathematical writing occurred to determine the effect the dialogue had on students' mathematical writing. Students were given a mathematics problem to solve. After reading the mathematics problem, each student wrote questions they had regarding the problem as well as a request for additional information that they felt was needed to solve the problem. Students exchanged …

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Strategies For Sustainable Professional Development Programs To Promote Effective Pedagogical Use Of Instructional Technology In Teaching, Karla R. Assis Cezarino Dec 2004

Strategies For Sustainable Professional Development Programs To Promote Effective Pedagogical Use Of Instructional Technology In Teaching, Karla R. Assis Cezarino

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to determine a set of common strategies employed by sustainable instructional technology professional development programs that are found to successfully promote educators' high-level use of technology in their teaching practice. Two questions guided this study: (a) Research Question 1: What do successful instructional technology professional development programs recognize as indicators of high-level use of technology? and (b) Research Question 2: Which instructional technology professional development strategies successfully promote high-level use of instructional technology in participants' teaching practice?;An online questionnaire consisting of close-ended questions and open-ended questions was used as the means of data collection. …

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Finite Element Analysis Of Interaction Between Actin Cytoskeleton And Intracellular Fluid In Prechondrocytes And Chondrocytes Subjected To Compressive Loading, Sundar Viswanathan Dec 2004

Finite Element Analysis Of Interaction Between Actin Cytoskeleton And Intracellular Fluid In Prechondrocytes And Chondrocytes Subjected To Compressive Loading, Sundar Viswanathan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Prechondrocytes exhibit a change in their actin cytoskeletal arrangement when subjected to loading. This study looks at the implications of the altered solid-fluid interactions due to this change. A 2-D Finite element model of a cell was developed. A solid-fluid interaction solution procedure was validated and used to determine fluid flow/pressure in a cell when subject to deformation. These values were then used to calculate fluid flow induced stresses on individual actin fibers. The results suggest that prechondrocytes alter their cytoskeletal structure to reduce stresses as a result of fluid flow due to deformation of the cell.

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Effectiveness Of Electrical Demand Reduction Strategies, Chandra Gopalakrishnan Dec 2004

Effectiveness Of Electrical Demand Reduction Strategies, Chandra Gopalakrishnan

Graduate Theses, Dissertations, and Problem Reports (ETD)

A common notion in the industry is that energy is an overhead and not related directly to the product. Measures that reduce electric demand are usually considered in isolation and their effect on the other costs related to the product is ignored. This is especially true for multi-product operations where the demand for various products is not constant and it is hard to track the costs associated with each product. This research takes a software based approach to analyze how a demand reduction measure affects the carrying cost, stockout cost, labor cost, electric usage cost and electric demand cost. This …

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Parametric And Predictive Analysis Of Horizontal Well Configurations For Coalbed Methane Reservoirs In Appalachian Basin, Nikola Maricic Dec 2004

Parametric And Predictive Analysis Of Horizontal Well Configurations For Coalbed Methane Reservoirs In Appalachian Basin, Nikola Maricic

Graduate Theses, Dissertations, and Problem Reports (ETD)

It has been a well-established fact that the Appalachian Basin represents a high potential region for the Coalbed Methane (CBM) production. The thin coal beds in the Appalachian basin are characterized by low porosity and permeability values. Due to highly complex reservoir characteristics, different drilling techniques have been developed in order to improve ultimate gas recovery in the shortest possible time. It has been claimed that horizontal drilling is the optimum completion technique used in this region to maximize methane recovery from coalbed reservoirs.;Horizontal wells are considered to be effective in the relatively thin, naturally fractured reservoirs that are characterized …

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Development Of A Test Method To Measure "In-Use" Emissions From Stationary And Portable Diesel Sources, Gurudutt A. Nayak Dec 2004

Development Of A Test Method To Measure "In-Use" Emissions From Stationary And Portable Diesel Sources, Gurudutt A. Nayak

Graduate Theses, Dissertations, and Problem Reports (ETD)

A cost-effective, accurate and easy-to-use in-field test method was developed that would allow regulatory bodies, such as the California Air Resources Board (CARB) to determine in-use compliance with emission standards for newly manufactured portable and stationary engines. As emissions measured during an engine-dynamometer test do not faithfully reflect real-world emissions, a test method that functions like an Inspection and Maintenance (I/M) type test method was developed. Only concentration measurements of pollutants such as oxides of nitrogen (NO x) and carbon dioxide (CO2) are required to determine compliance using this "compliance factor, F" approach. Hence, errors introduced due to engine work …

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Empirical Assessment Of Architecture-Based Reliability Of Open-Source Software, Ranganath Perugupalli Dec 2004

Empirical Assessment Of Architecture-Based Reliability Of Open-Source Software, Ranganath Perugupalli

Graduate Theses, Dissertations, and Problem Reports (ETD)

A number of analytical models have been proposed earlier for quantifying software reliability. Some of these models estimate the failure behavior of the software using black-box testing, which treats the software as a monolithic whole. With the evolution of component based software development, the necessity to use white-box testing increased. A few architecture-based reliability models, which use white-box approach, were proposed earlier and they have been validated using several small case studies and proved to be correct. However, there is a dearth of large-scale empirical data used for reliability analysis. This thesis enriches the empirical knowledge in software reliability engineering. …

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Evaluation Of The Ductility Of Composite Steel I-Girders In Positive Bending, Nicholas R. Roberts Dec 2004

Evaluation Of The Ductility Of Composite Steel I-Girders In Positive Bending, Nicholas R. Roberts

Graduate Theses, Dissertations, and Problem Reports (ETD)

Current AASHTO bridge specifications limit the allowable maximum strength of simple spans and positive bending regions with adjacent compact pier sections to a value between the full plastic moment and the hypothetical yield moment of the cross section. The equation used for this strength prediction is given as a linear function, related to the depth of web in compression. However, this method of strength prediction is based on a series of parametric studies from which the data did not suggest the values close to the yield moment that may be computed using the associated strength equations.;Recent experimental tests by others …

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Characteristics Of West Virginia Secondary Agricultural Educators, James C. Beatty Dec 2004

Characteristics Of West Virginia Secondary Agricultural Educators, James C. Beatty

Graduate Theses, Dissertations, and Problem Reports (ETD)

All agricultural educators are expected to teach each student the three aspects of the agricultural education program, FFA, Supervised Agricultural Experience programs, and classroom and laboratory instruction. The purpose of this study was to determine the characteristics of an agricultural educator in the state of West Virginia. Agricultural educators rated reading, writing, and mathematics incorporation into the curriculum above average in the survey. They also felt that they encouraged professional and respectful relationships with their students almost all of the time. The amount of sarcasm used in the classroom, and bypassing school policy when the situation warranted it, returned varying …

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Identity Development And Empathy As Related To Creative Activity Participation, Shana L. Blackshire Dec 2004

Identity Development And Empathy As Related To Creative Activity Participation, Shana L. Blackshire

Graduate Theses, Dissertations, and Problem Reports (ETD)

The focus of this study was the associations between identity, empathy as an emotional construct, and participation in creatively focused activities among adolescents in a largely rural population. A series of measures to assess identity status, the ego strength of fidelity, empathy, and level of participation in creative activities were administered to 212 male and 320 female adolescents in grades nine through eleven at public high schools in Appalachia. Analyses indicated that while the expected relationship between creative activity participation and identity was not statistically significant, gender may heavily influence that relationship as a mediating variable. Empathy, however, was found …

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Natural Gas Exploration Associated With Fracture Systems In Alleghenian Thrust Faults In The Greenbrier Formation, Southern West Virginia, Craig A. Edmonds Dec 2004

Natural Gas Exploration Associated With Fracture Systems In Alleghenian Thrust Faults In The Greenbrier Formation, Southern West Virginia, Craig A. Edmonds

Graduate Theses, Dissertations, and Problem Reports (ETD)

A hydrocarbon play has been identified in southern West Virginia targeting the intersection of thrust faults with specific Mississippian reservoirs. Late Paleozoic sandstone and limestone reservoirs are traditional pays of the study area, often yielding economic natural gas production, with initial production rates ranging between 100 to 200 Mcf per day per well. In contrast, production rates from wells that encounter faults often exceed 500 Mcf per day. We believe this prolific production results from secondary fracture porosity and enhanced permeability from fracture zones associated with thrust faults, providing a conduit to the Union Oolite reservoir member of the Greenbrier …

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Glaucomys Sabrinus Fuscus Habitat And Nest Box Use In West Virginia With Management Recommendations For Kumbrabow State Forest, Tamara M. Terry Dec 2004

Glaucomys Sabrinus Fuscus Habitat And Nest Box Use In West Virginia With Management Recommendations For Kumbrabow State Forest, Tamara M. Terry

Graduate Theses, Dissertations, and Problem Reports (ETD)

Nest site selection and habitat use of the endangered West Virginia northern flying squirrel (Glaucomys sabrinus fuscus) is poorly understood. Because access to suitable nesting sites and habitats could be limiting factors, it is important to investigate these ecological requirements to further conservation efforts of the species. My study was conducted on the Kumbrabow State Forest and the MeadWestvaco Wildlife and Ecological Research Forest in Randolph County, West Virginia. I examined characteristics of 31 nest sites (22 cavity; 8 leaf; 1 undetermined) from 4 radio-collared West Virginia northern flying squirrels during the summers of 2002--2003. The nest trees used were …

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West Virginia Coal Fly Ash Sorption Of Btex, Jerome C. Wentz Dec 2004

West Virginia Coal Fly Ash Sorption Of Btex, Jerome C. Wentz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sorption is a term used in the environmental field to describe how chemical contaminants in soil and groundwater adhere to solid particles such as: clay, peat and activated carbon for the purposes of remediation, fate and transport. A potential surrogate for sorption of chemical contaminants in groundwater is coal fly ash. Batch test experiments have demonstrated coal fly ash's ability to remove hydrophobic, organic petroleum contaminants including: benzene, toluene, ethylbenzene and xylenes (BTEX) in groundwater through the processes of sorption. Coal fly ash is a byproduct material of coal fired power plants that is often disposed of on-site or at …

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Effects Of Herbivory By White -Tailed Deer (Odocoileus Virginianus Zimm.) On The Population Ecology And Conservation Biology Of American Ginseng (Panax Quinquefolius L.), Mary Ann Furedi Dec 2004

Effects Of Herbivory By White -Tailed Deer (Odocoileus Virginianus Zimm.) On The Population Ecology And Conservation Biology Of American Ginseng (Panax Quinquefolius L.), Mary Ann Furedi

Graduate Theses, Dissertations, and Problem Reports (ETD)

American ginseng (Panax quinquefolius L.) is a long-lived understory herb considered rare within its range. Harvesting pressures and habitat degradation/destruction are thought to be the primary causes of population decline although others factors such as browsing by white-tailed deer (Odocoileus virginianus Zimm.) have not yet been explored. To understand the effects of deer browsing on natural ginseng populations, my research focused on four specific objectives. First, I investigated how plant characteristics and microsite conditions influence the susceptibility to being browsed. I found that apparency plays a role in influencing browse selection, such that large, reproductive plants in visible and accessible …

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Three Essays On The Profitability, Risk, And Viability Of Family Firms In A Developing Economy, Kamol Khaemasunun Dec 2004

Three Essays On The Profitability, Risk, And Viability Of Family Firms In A Developing Economy, Kamol Khaemasunun

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this dissertation is to examine the family firms in term of profit, risk and the probability of their survival in developing countries. The first chapter gives an introduction to this study. The second chapter provides an analysis of family businesses in regard to their performance, since there have been claims in the popular press that family-centered "crony capitalism" significantly contributed to the Asian financial crisis of 1997. Small, tightly focused firms can, however, be well managed by family hierarchies. As firms grow and diversify, family management is often displaced by diffuse ownership and independent managers. Between these …

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Architectural Level Risk Assessment, Ahmed E. Hassan Dec 2004

Architectural Level Risk Assessment, Ahmed E. Hassan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many companies develop and maintain large-scale software systems for public and financial institutions. Should a failure occur in one of these systems, the impact would be enormous. It is therefore essential, in maintaining a system's quality, to identify any defects early on in the development process in order to prevent the occurrence of failures. However, testing all modules of these systems to identify defects can be very expensive. There is therefore a need for methodologies and tools that support software engineers in identifying the defected and complex software components early on in the development process.;Risk assessment is an essential process …

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Modified Delphi Investigation Of Exercise Science In Physical Education Teacher Education, Sean M. Bulger Dec 2004

Modified Delphi Investigation Of Exercise Science In Physical Education Teacher Education, Sean M. Bulger

Graduate Theses, Dissertations, and Problem Reports (ETD)

As physical education teacher educators experiment with alternative pedagogical approaches to bridge the gap between subdisciplinary theory and professional practice, the need for enhanced multi-disciplinary research and communication continues. The purpose of this study was to determine the critical exercise science competencies, and associated instructional methods, that are recommended for inclusion in the physical education teacher education undergraduate curriculum. An initial list of theoretical and applied exercise science competencies was constructed using the knowledge, skills, and abilities recommended by the American College of Sports Medicine for individuals working in the field of exercise science. The two-round, modified Delphi procedure involved …

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Strength Evaluation Of Honeycomb Frp Sandwich Panels With Sinusoidal Core Geometry, An Chen Dec 2004

Strength Evaluation Of Honeycomb Frp Sandwich Panels With Sinusoidal Core Geometry, An Chen

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, the demands in civil infrastructure have provided opportunities for development and implementation of Honeycomb Fiber-Reinforced Polymer (HFRP) sandwich panels, both in rehabilitation projects and new constructions.;This dissertation is the first study on strength evaluation of HFRP sandwich panels with sinusoidal core geometry. Core materials for sandwich structures are primarily subjected to out-of-plane compression and shear. Therefore, three major contributions are included in this dissertation: out-of-plane compression, out-of-plane shear, and study on facesheet laminates. Two analytical models, corresponding to pure compression and elastic buckling failure, respectively, are provided for panels subject to out-of-plane compression. The facesheet and core …

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Design And Flight Testing Actuator Failure Accommodation Controllers On Wvu Yf-22 Research Uavs, Yu Gu Dec 2004

Design And Flight Testing Actuator Failure Accommodation Controllers On Wvu Yf-22 Research Uavs, Yu Gu

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation describes the design, development, and flight testing of a Neural Network (NN) based Fault Tolerant Flight Control System (FTFCS) with the ability to accommodate for actuator failures. The goal of this research was to demonstrate the ability of a specific set of control laws to maintain aircraft handling qualities in the presence of failures in the actuator channels. In this study, two-failure scenarios have been investigated: aileron failure (locking of the right aileron at a trim position) and elevator failure (locking of the right elevator at a trim position). A fleet of WVU YF-22 research aircraft test-beds were …

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Using Dendrochronology To Identify Species-Specific Ice Storm Damage In Delaware, Matthew John Smolnik Dec 2004

Using Dendrochronology To Identify Species-Specific Ice Storm Damage In Delaware, Matthew John Smolnik

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ice storms are recurrent disturbances that alter forest succession and retard tree growth rates throughout North America. Following a 1994 ice storm in Delaware, the Delaware Forest Service established seventy-five study plots to sample four species of trees (southern red oak [Quercus falcate ], white oak [Quercus alba], loblolly pine [ Pinus taeda], and yellow poplar [Liriodendron tulipifera ]) affected by the ice storm. The objectives of this study are to: (1) explore the species-specific growth rates and responses to the ice storm; and (2) determine which of the four species is best suited to provide dendroecological records of past …

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Stream Ecosystem Response To Mitigative Limestone Treatment In Acid-Impaired, Central Appalachian Streams, Sarah Elizabeth Mcclurg Dec 2004

Stream Ecosystem Response To Mitigative Limestone Treatment In Acid-Impaired, Central Appalachian Streams, Sarah Elizabeth Mcclurg

Graduate Theses, Dissertations, and Problem Reports (ETD)

We quantified water chemistry, primary production, and benthic macroinvertebrate and fish community structure in 20 Central Appalachian streams: 4 acidic streams, 8 naturally circumneutral streams, and 8 historically acidic streams treated annually with limestone sand over varying lengths of time. The objective was to determine the extent of chemical and biological recovery and temporal trends in the recovery process of limestone treated streams compared to circumneutral reference conditions in Central Appalachia. Results indicate that the application of limestone sand to acidic streams is effective in fully and immediately recovering some of the chemical and biological characteristics of naturally functioning stream …

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Examination Of Experimentally Engineered Larval Fish Habitat In The Marmet Pool, Kanawha River, West Virginia, Jonathan M. Niles Dec 2004

Examination Of Experimentally Engineered Larval Fish Habitat In The Marmet Pool, Kanawha River, West Virginia, Jonathan M. Niles

Graduate Theses, Dissertations, and Problem Reports (ETD)

In rivers, velocity shelters are thought to serve as limiting factors in the retention and recruitment of young fish. Such shelters are formed in backwaters and tributaries, however these areas are limited in the Marmet Pool of the Kanawha River, West Virginia. In response to this concern, several structures that are thought to serve as low velocity zones were placed within the Marmet Pool. This study was conducted to evaluate the experimental rock structures (Finger and Zipper Dikes) as potential mitigation for navigational impact and to determine which sampling gears are best to sample these shallow, structurally diverse areas. The …

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Channel Geomorphology Relationships For The Beaver Creek Watershed, Atif Hamid Dec 2004

Channel Geomorphology Relationships For The Beaver Creek Watershed, Atif Hamid

Graduate Theses, Dissertations, and Problem Reports (ETD)

The proposed Appalachian Corridor H will be built through some of the most rugged terrain in West Virginia. The Corridor H section from Davis to Bismarck passes through the Beaver Creek watershed, located in Tucker County, West Virginia, which has been heavily affected by historic mining, deteriorating the water quality conditions of the Beaver Creek watershed. Due to the construction of Corridor H, some of the streams will be disturbed from their present courses. Hence, stream restoration work for these streams is inevitable. It is important to develop a family of stream geometry curves that relate the bankfull parameters as …

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Forensic Analysis Of Digital Evidence From Palm Personal Digital Assistants, Christopher M. Mcnemar Dec 2004

Forensic Analysis Of Digital Evidence From Palm Personal Digital Assistants, Christopher M. Mcnemar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Personal Digital Assistants are becoming more affordable and commonplace. They provide mobile data storage, computational, and network abilities. When handheld devices are involved in a crime, forensic examiners need tools to properly retrieve and analyze data present on the device. Unfortunately, forensic analysis of handheld devices is not adequately documented and supported.;This report gives an overview of Palm handheld development and current forensic software related to Personal Digital Assistants. Procedures for device seizure, storage, imaging, and analysis are documented. In addition, a tool was developed as part of this work to aid forensic examiners in recovering evidence from memory image …

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Trace Detection Of Mercury Using Boron-Doped Diamond Electrodes, Latha Ramakrishnan Dec 2004

Trace Detection Of Mercury Using Boron-Doped Diamond Electrodes, Latha Ramakrishnan

Graduate Theses, Dissertations, and Problem Reports (ETD)

This Project was undertaken to develop electrochemical techniques using Boron-doped Diamond (BDD) electrodes for the purpose of detecting mercury in solutions in the ppb-ppt range. Differential Pulse Voltammetry (DPV) was used successfully to develop calibration curves for mercury detection in standard solutions in the ppb-ppt range, followed by using these curves for mercury measurements in unknown samples. DPV experiments were performed in nitrate, thiocyanate and chloride media. Investigation in the chloride medium is important since practical samples always contain chloride impurities. The formation of calomel in chloride medium is avoided on the BDD surface by the co-deposition of 3ppm of …

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Models Of High-Temperature Desulfurization Using Zinc-Based Sorbents, Yong Zhang Dec 2004

Models Of High-Temperature Desulfurization Using Zinc-Based Sorbents, Yong Zhang

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study focuses on determining models that are currently available to describe gas-solid reactions to predict the observed (experimental) results from a series of TGA experiments. Variations of the GPM (Grainy Pellet Model) were used and shown to give good agreement with experimental conversion histories of zinc oxide particle undergoing sulfidation using H2S at temperature in the range of 482 to 593 degree centigrade.;By using SEM (Scanning Electron Microscope) and Visilog(TM) imaging analysis software, the grain size distribution and grain sphericity can be obtained.;The basic forms of the SCM (Shrinking Core Model) and GPM models could not predict correctly the …

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Sensitivity To Molar Contingencies Of Food Presentation, Jeffrey Everly Dec 2004

Sensitivity To Molar Contingencies Of Food Presentation, Jeffrey Everly

Graduate Theses, Dissertations, and Problem Reports (ETD)

Twelve rats were exposed to two variable-time schedules that differed in their rates of food delivery. The "imposed" schedule was normally in effect, but lever pressing occasionally switched to the "alternate" schedule for periods averaging 30 s. Increases in food frequency afforded by switching to the alternate schedule were manipulated across conditions. All rats were exposed to the same absolute food frequency increases, but the programming of these increases was varied among the rats by holding particular food delivery rates constant across conditions. For half of the rats, the schedules were signaled. In general, response rates were directly related to …

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Women And Social Services In Saudi Arabia, Khadija Nasseef Dec 2004

Women And Social Services In Saudi Arabia, Khadija Nasseef

Graduate Theses, Dissertations, and Problem Reports (ETD)

This master thesis talks about social services for women that provided by social welfare agencies in Saudi Arabia. This thesis is a descriptive study that uses the content analysis as a method to investigate social services agencies that provides special services for women. This thesis also had special interest in social services that improve women's lives in Saudi Arabia. The content analysis is made on documents and brochures of 4 main social services agencies that offer services for women. The content analysis was made in term of these agencies main aim and target, their main massage, their programs for women, …

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