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Characterization Of Cold Shock Domain Proteins And Sumoylation System From Oryza Sativa, Vijaya Vardhana Reddy Chaikam Jan 2009

Characterization Of Cold Shock Domain Proteins And Sumoylation System From Oryza Sativa, Vijaya Vardhana Reddy Chaikam

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the first part of this study, two novel c&barbelow;old s&barbelow;hock domain p&barbelow;roteins from rice (OsCSP) were cloned and subsequently characterized their roles during stress conditions and development. OsCSP1 and OsCSP2 ( Oryza sativa CSD protein) encode putative proteins consisting of an N-terminal CSD and glycine-rich regions that are interspersed by 4 and 2 CX2CX4HX4C (CCHC) retroviral-like zinc fingers, respectively. Using an in vitro DNA binding assay, I demonstrate that OsCSPs exhibit conserved ssDNA binding activity. In vivo functional complementation in a cold-sensitive bacterial strain, that lacks four cold inducible cold shock domain proteins revealed that OsCSPs function as RNA …

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Cellular Mechanisms Responsible For Development Of Sensitivity Of The Bovine Corpus Luteum To Prostaglandin F2 Alpha, Madhusudan P. Goravanahally Jan 2009

Cellular Mechanisms Responsible For Development Of Sensitivity Of The Bovine Corpus Luteum To Prostaglandin F2 Alpha, Madhusudan P. Goravanahally

Graduate Theses, Dissertations, and Problem Reports (ETD)

Prostaglandin F2 alpha (PGF2alpha) brings about regression of the bovine corpus luteum (CL). This luteolytic property of PGF 2alpha is used in beef and dairy cattle to synchronize estrus. A limitation of this protocol is an insensitivity of the early CL to luteolytic actions of PGF2alpha. The mechanisms underlying this differential luteal sensitivity are poorly understood. Therefore the main objective of the current study is to understand the cellular mechanism of luteal insensitivity. The developing CL has a maximum number of PGF2alpha receptors; therefore differences in signaling events might be responsible for luteal insensitivity. Hence differential gene expression at two …

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Prenatal Cadmium Exposure Dysregulates Sonic Hedgehog And Wnt/Beta-Catenin Signaling In The Thymus Resulting In Immunomodulatory Effects, Miranda Leah Hanson Jan 2009

Prenatal Cadmium Exposure Dysregulates Sonic Hedgehog And Wnt/Beta-Catenin Signaling In The Thymus Resulting In Immunomodulatory Effects, Miranda Leah Hanson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cadmium (Cd) is both an environmental pollutant as well as a component of cigarette smoke. Recent data suggests increased cancer risks and increased mortality in environmentally exposed populations. Although evidence demonstrates that adult exposure to Cd causes changes in the immune system, there are limited reports in the literature of immunomodulatory effects of prenatal exposure to Cd. The sonic hedgehog (Shh) and Wnt/ss-catenin pathways are required for thymocyte maturation. Several studies have demonstrated that Cd exposure affects these pathways in different organ systems. Our experiments were designed to investigate the effect of prenatal Cd exposure on thymocyte development, and to …

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Between The Wheels: Quest For Streetcar Unionism In The Carolina Piedmont, 1919--1922, Jeffrey M. Leatherwood Jan 2009

Between The Wheels: Quest For Streetcar Unionism In The Carolina Piedmont, 1919--1922, Jeffrey M. Leatherwood

Graduate Theses, Dissertations, and Problem Reports (ETD)

Between the Wheels examines three Carolina Piedmont streetcar strikes in 1919-22. These years were marked by the aspirations of workers for industrial democracy, corporate anti-labor backlash and by the first Red Scare. Inevitably, these trends swept through the Carolina Piedmont, long viewed as isolated and resistant toward progress. But scholars should now re-examine the New South in light of broader American context. Three case studies in Spartanburg and Columbia, South Carolina, and Charlotte, North Carolina, highlight the struggles of New South labor reformers against union-busting monopolists, exemplified by James B. Duke.;During World War I, many Carolina Piedmont entrepreneurs viewed labor …

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Microbial Survival After Isoelectric Solubilization And Precipitation Of Fish Protein, Lancya Lansdowne Jan 2009

Microbial Survival After Isoelectric Solubilization And Precipitation Of Fish Protein, Lancya Lansdowne

Graduate Theses, Dissertations, and Problem Reports (ETD)

Protein wasted by the disposal of fish processing byproducts may be recovered using isoelectric solubilization and precipitation. The protein is dissolved by extreme pH shifts and recovered via precipitation and centrifugation. Microbial safety throughout this process had not yet been evaluated; therefore, the purpose of this study was to determine if Listeria innocua and Escherichia coli would survive extreme pH shifts during the protein recovery process. Fresh rainbow trout were headed, gutted, and minced and then inoculated with 109 CFU/g E. coli ATCC 25922 or filleted and minced and then inoculated with 109 cfu/g of L. innocua. The fish was …

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The Case Of Uneven Development In Palestine: An Investigation Of Scalar Fix As An Act Of Dispossession, Sandra Lange Jan 2009

The Case Of Uneven Development In Palestine: An Investigation Of Scalar Fix As An Act Of Dispossession, Sandra Lange

Graduate Theses, Dissertations, and Problem Reports (ETD)

Israel's assault on Gaza in December 2008 brought one of the world's most long-standing and hotly debated issues to the fore: the conflict between Israel and Palestine. Despite numerous diplomatic efforts to negotiate peace, the hostilities between the two parties continue. One of the fundamental obstacles to peace has been the highly uneven development between Israel and Palestine, caused primarily by Israel's continuous dispossession of Palestinian rights to land, water and sovereignty. In order to further our understanding of this phenomenon, this thesis sets out to examine processes of dispossession are carried out. The study therefore draws on the geographical …

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Identifying Prognostic Gene-Signatures Using A Network-Based Approach, Swetha Bose Nutakki Jan 2009

Identifying Prognostic Gene-Signatures Using A Network-Based Approach, Swetha Bose Nutakki

Graduate Theses, Dissertations, and Problem Reports (ETD)

The main objective of this study is to develop a novel network-based methodology to identify prognostic signatures of genes that can predict recurrence in cancer. Feature selection algorithms were used widely for the identification of gene signatures in genome-wide association studies. But most of them do not discover the causal relationships between the features and need to compromise between accuracy and complexity. The network-based techniques take the molecular interactions between pairs of genes in to account and are thus a more efficient means of finding gene signatures, and they are also better in terms of its classification accuracy without compromising …

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Dispositional Mindfulness And Cardiovascular Reactivity To Sensory Rejection And Sensory Intake Tasks, Paula R. Prentice Jan 2009

Dispositional Mindfulness And Cardiovascular Reactivity To Sensory Rejection And Sensory Intake Tasks, Paula R. Prentice

Graduate Theses, Dissertations, and Problem Reports (ETD)

Mindfulness is a trained or dispositional state of "being" that has been linked to positive mental and physical health effects. Although preliminary findings on cortical activation have shown mindfulness to be associated with increased frontal activation and reduced limbic activity, very little is known regarding the influence of mindfulness on autonomic nervous system activity. The present study sought to determine how participants varying in self-reported levels of dispositional mindfulness reacted to tasks differing on attention to environmental stimuli. Cardiovascular reactivity [heart rate, heart rate variability (HRV), and systolic and diastolic blood pressure] to a sensory intake task (computerized reaction time …

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Age Differences In Younger And Older Adults' Experience Of Interpersonal Problems, Leo Schlosnagle Jan 2009

Age Differences In Younger And Older Adults' Experience Of Interpersonal Problems, Leo Schlosnagle

Graduate Theses, Dissertations, and Problem Reports (ETD)

Differences between younger (N=78) and older (N=78) adults' frequency of experience of interpersonal problems were examined. Previous research has shown age-related declines in contact frequency and negative interactions (Akiyama, et al., 2003; Carstensen, 1992). Aging has also been associated with concurrent increases in emotional closeness and relationship satisfaction with social partners (Birditt, et al., 2005; Lang & Carstensen, 2002), and social self-efficacy and problem-solving effectiveness (Artistico, Cervone, and Pezzuti, 2003; Blanchard-Fields, Mienaltowski, & Seay, 2007; Lachman, 1986). In the current study, older adults reported experiencing interpersonal problems significantly less often than younger adults. Older adults also reported less contact frequency …

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Health Promotion During Midlife: The Influence Of Internal Health Locus Of Control And Future Time Perspective, Sarah T. Stahl Jan 2009

Health Promotion During Midlife: The Influence Of Internal Health Locus Of Control And Future Time Perspective, Sarah T. Stahl

Graduate Theses, Dissertations, and Problem Reports (ETD)

Health promoting behaviors are typically categorized as behaviors that move individuals towards optimal health while concurrently decreasing one's susceptibility to disease and illness (Becker & Arnold, 2004; Breslow, 1999). When compared to other developmental age periods, less is known about health promotion in midlife (Merrill & Verbrugge, 1999). Thus, the present study examined the relations among demographic variables, future time perspective, internal health locus of control, and middle-aged adults' engagement in health promotion. Data from 109 middle-aged adults between the ages of 40 and 66 were collected via an online survey. Results indicated that the data fit the model poorly …

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High Performance Web Based Automated Dental Identification System, Ali Bahu Jan 2009

High Performance Web Based Automated Dental Identification System, Ali Bahu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Forensic scientists are using different kinds of systems and techniques for the identification of missing and deceased individuals. Researchers from West Virginia University, Michigan State University, and University of Miami proposed an Automated Dental Identification System (ADIS) which utilizes dental features for the post mortem identification process. A web-based ADIS, namely Web-ADIS, was developed. The initial testing shows that the system can be used efficiently with a small database.;A new and improved system design has been proposed in this research enabling practical use of the ADIS with a large database. We designate this new system as High Performance Web Automated …

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Of Sterile Promontory And Infinite Space: The Creation Of The Scenic Design For Shakespeare's "Hamlet"., April Beiswenger Jan 2009

Of Sterile Promontory And Infinite Space: The Creation Of The Scenic Design For Shakespeare's "Hamlet"., April Beiswenger

Graduate Theses, Dissertations, and Problem Reports (ETD)

This document is an account of the design process for the West Virginia University Department of Theatre and Dance’s production of Shakespeare’s Hamlet. It is written in partial fulfillment of a Master of Fine Arts degree in Theatre. This document will describe the process of the creation of the scenic design, the construction, and the work that culminated in the production.

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Derrida's Daughter: A Dialogue Postmortem On Love., Heather D. Zias Jan 2009

Derrida's Daughter: A Dialogue Postmortem On Love., Heather D. Zias

Graduate Theses, Dissertations, and Problem Reports (ETD)

As the illegitimate daughter of one of the twentieth century’s most intriguing philosophers, at least to literary folk affiliated with universities of some repute, the author’s life has been suspended in the interstices of celebrity and ignominy, erudition and erethism, Stanford University Press and Sinclair Community College, and so much so, that her life seemed to be nothing but this conjunction, that is—and. Unwilling to cite her famous father (who, though absent, was nevertheless present to her mind as a wish or a hope) so that she might make her own name, the author moved about incognito in literary circles …

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Crossing The Bridge Between Written Tale And Scenic Design: The Legend Of Sleepy Hollow, Sabrina Hykes Jan 2009

Crossing The Bridge Between Written Tale And Scenic Design: The Legend Of Sleepy Hollow, Sabrina Hykes

Graduate Theses, Dissertations, and Problem Reports (ETD)

In October 2008 West Virginia University Division of Theatre and Dance presented Christopher Cartmill‟s The Legend of Sleepy Hollow in the Lyell B. Clay Concert Theatre in Morgantown, WV. This thesis details the scenic design process including script analysis, research, planning, construction and an analysis of the final design. A series of models and discussions took the first impressions of the script to the final version which incorporated some of the initial concepts but left others behind for better or for worse.

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Two-Dimensional And Three-Dimensional Gpr Imaging Of Wood And Fiber Reinforced Polymer Composites., Sandeep Pyakurel Jan 2009

Two-Dimensional And Three-Dimensional Gpr Imaging Of Wood And Fiber Reinforced Polymer Composites., Sandeep Pyakurel

Graduate Theses, Dissertations, and Problem Reports (ETD)

Subsurface defects in wooden logs such as knots, decays, splits, embedded metallic nails and bullets are of major concern to timber saw mills. Presence of these defects decreases the value of the sawn lumber boards. Also, the factory down time and operation cost increases significantly whenever the saw blade is damaged by encountering embedded metals during the sawing process. This study has been conducted to assess the possibility of detecting subsurface defects in logs using Ground Penetrating Radar (GPR) before the sawing process. GPR radargrams obtained from several wooden logs using different scanning techniques and analysis methods were investigated. These …

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Neodymium:Yttrium Aluminum Garnet Mini Slab Laser: Hybrid Integration And Raman Sensor Application., Narasimha Rao Ayyalasomayajula Jan 2009

Neodymium:Yttrium Aluminum Garnet Mini Slab Laser: Hybrid Integration And Raman Sensor Application., Narasimha Rao Ayyalasomayajula

Graduate Theses, Dissertations, and Problem Reports (ETD)

An effective use of Nd:YAG lasers in remote, in-situ sensing and other applications require compact size and efficient operation. Our prior work demonstrated that a functioning Nd:YAG laser resonator could be reduced to the size of approximately 1cm2 (10mmx12mm) and 2mm thickness with an output power of 2.2W and an efficiency of 6%. Enhancing the efficiency and output energy and further reducing the size of these slab lasers will make them attractive candidates for compact laser sources in applications such as Laser Induced Breakdown Spectroscopy (LIBS), laser-based spark plug systems, and Raman excitation-based integrated sensor systems. This dissertation targets the …

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Carboniferous Paleobotany And Paleoclimatology Of The Central Appalachian Basin, West Virginia, U.S.A., Bascombe Mitchel Blake Jan 2009

Carboniferous Paleobotany And Paleoclimatology Of The Central Appalachian Basin, West Virginia, U.S.A., Bascombe Mitchel Blake

Graduate Theses, Dissertations, and Problem Reports (ETD)

Carboniferous plant fossils have been reported from the Appalachian Basin since the middle part of the nineteenth century. The lack of easy access to European literature and comparative specimens resulted in a body of work characterized by overly diagrammatic figures and confusing lists of junior synonyms with limited figures. This report provides 41 photographic plates of Carboniferous plant fossils from the Appalachian Basin. Comparative range charts are used to summarize the similarity of the fossil macrofloras of the Appalachian region with those of other parts of Euramerica, although each paleoregion has a small number of endemic species. First occurrences and …

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Musical, Cultural, And Performance Structures In The Organ Works Of Arvo Part., Marguerite Bostonia Jan 2009

Musical, Cultural, And Performance Structures In The Organ Works Of Arvo Part., Marguerite Bostonia

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study is to illustrate the variety of cultural, social, and religious influences on the tintinnabuli composition style of Estonian Arvo Part. In particular, the acoustical properties of Russian bells and their inspiration for a unique compositional style are reviewed in depth. The niche held by Russian bells in the Russian Orthodox Church, along with the melodic formulae specific to Orthodox chant are also addressed as a potential field of analytical comparison. Part’s claim of connections to sacred music and early music necessitated a review of chant repertoire of both eastern and western Christianity in the evolution …

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End -Of -Life Care Training In Medical School: An Examination Of Medical Students' Knowledge, Attitudes, Preparedness To Provide Care, And The Hidden Curriculum., Emily H. Bower Jan 2009

End -Of -Life Care Training In Medical School: An Examination Of Medical Students' Knowledge, Attitudes, Preparedness To Provide Care, And The Hidden Curriculum., Emily H. Bower

Graduate Theses, Dissertations, and Problem Reports (ETD)

End-of-life (EOL) care discussions between physicians and patients promote positive patient health outcomes (Stewart, 1995). However, medical students receive limited training in EOL care (Sullivan, Lakoma, & Block, 2003). To be able to improve curricula, it is important to understand the current training experience and its effects on student attitudes and behavior. The purpose of the current study was twofold: (1) to examine predictors of self-rated preparation to provide EOL care, and (2) to examine predictors of attitudes about EOL care in a medical student population. Additionally, the moderating effect of “hidden” or informal curriculum on the relation between learning …

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Electrodeposition Of Manganese/Cobalt Alloys For Solid Oxide Fuel Cell Interconnect Applications., Junwei Wu Jan 2009

Electrodeposition Of Manganese/Cobalt Alloys For Solid Oxide Fuel Cell Interconnect Applications., Junwei Wu

Graduate Theses, Dissertations, and Problem Reports (ETD)

With the reduction of solid oxide fuel cell (SOFC) operation temperature from 1000°C to 800°C, it is possible to use stainless steel as interconnect. Chromia forming ferritic stainless steels are the most acceptable materials for interconnects application because of their cost effectiveness and good oxidation resistance, as compared to other candidates. However, excessive scale growth and chromium evaporation will degrade the cell performance rapidly. Highly conductive coatings that aide oxidation resistance and prevent chromium evaporation may prevent the problems. (Mn,Co)3O4 spinel is one of the most promising coatings for interconnect application on account of its high conductivity, good chromium retention …

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National Identity, Political Engagement, And Electoral Political Participation: A Case Study Of Taiwan., Ting Chang Jan 2009

National Identity, Political Engagement, And Electoral Political Participation: A Case Study Of Taiwan., Ting Chang

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation discusses the construction and enhancement of national identity and its relevance and implications or political participation and uses Taiwan as a case study. Among other things, the uniqueness, diversity, complexity, importance, urgency, and criticality of national identity in Taiwan motivates the author to examine national identity's formation, enhancement, and implications for political participation by using the Taiwan case in particular. In terms of the formation of Taiwan's national identity, this dissertation broadens the traditional way of measuring national identity in Taiwan. Not only are self-identity and attitudes toward China incorporated, but also party identification, ethnicity, and language are …

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Assessment Of Social Anxiety In Early Childhood: Initial Test Construction And *Validation., Daniel B. Chorney Jan 2009

Assessment Of Social Anxiety In Early Childhood: Initial Test Construction And *Validation., Daniel B. Chorney

Graduate Theses, Dissertations, and Problem Reports (ETD)

Social anxiety is experienced across the lifespan, with many individuals reporting symptoms of anxiety and shyness from a very early age in childhood. A number of measures have been designed to assess social anxiety in children, adolescents, and adults, yet little attention has been focused on children below 8 years of age. While some debate exists concerning children's ability to reliably report symptoms of anxiety in early childhood, recent research has indicated that accurate data can be obtained if the measures utilized are developmentally sensitive and not simply downward extensions of measures used to examine social anxiety in adults. Obtaining …

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The Use Of A Five-Part Lens To Create Musical "Portraits" Of The Five Queens In "Try Me, Good King" By Libby Larsen., Cynthia Conner-Bess Jan 2009

The Use Of A Five-Part Lens To Create Musical "Portraits" Of The Five Queens In "Try Me, Good King" By Libby Larsen., Cynthia Conner-Bess

Graduate Theses, Dissertations, and Problem Reports (ETD)

The issues presented in this paper are a nexus of several concerns: feminist criticism concerning the history of the wives of Henry VIII; applying methodologies of acting to develop a framework or process for the preparation of art songs through an original template of five lenses; and using a song cycle by Libby Larsen that provides both a focus and an example. This study introduces an interpretive process or co-creative strategy—a five-part lens for the preparation and interpretation of the songs by the singing artist. This five-part lens is designed to help bring a personal and unique interpretation—to breathe life …

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Great War Aviation And Commemoration: Louis Bennett, Jr., Commander Of The West Virginia Flying Corps., Charles D. Dusch Jan 2009

Great War Aviation And Commemoration: Louis Bennett, Jr., Commander Of The West Virginia Flying Corps., Charles D. Dusch

Graduate Theses, Dissertations, and Problem Reports (ETD)

To better understand the American experience of the Great War, one must look at it through the lens of the American Civil War. The surge of voluntarism seen in the Preparedness Movement, especially the formation of elite volunteer units, could trace its roots to the mid-nineteenth century. Not surprisingly, the ceremonies and reunions that marked the fiftieth anniversary of the Civil War were fresh in the minds of many Americans when war was declared in 1917. After the end of the war in 1918, American efforts to commemorate World War One were similar to those of their predecessors after the …

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Functional Characterization Of Pag1, The Α7 Subunit Of The 20s Proteasome And Of The Ubiquitin-Specific Protease Subfamilies Ubp12/13 And Ubp3/4 In Arabidopsis Thaliana., Gulsum Soyler-Ogretim Jan 2009

Functional Characterization Of Pag1, The Α7 Subunit Of The 20s Proteasome And Of The Ubiquitin-Specific Protease Subfamilies Ubp12/13 And Ubp3/4 In Arabidopsis Thaliana., Gulsum Soyler-Ogretim

Graduate Theses, Dissertations, and Problem Reports (ETD)

The ubiquitin/26S proteasome system (UPS) is conserved in all eukaryotic species. The 26S proteasome serves as the protease in this pathway and is responsible for the degradation of abnormal and short-lived proteins after their modification with a polyubiquitin tag. It consists of one or two ATP-dependent, 19S regulatory particles and an ATP-independent 20S core protease. PAG1 serves as one of at least 14 different subunits of the 20S core protease. In this study, the role of the 20S core protease in general and PAG1, the α7 subunit of the 26S proteasome, in particular during Arabidopsis growth and development was investigated …

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Aging And Gender In The Coronary Microcirculation: Effects Of Oxygen And Hydrogen Peroxide., Lori S. Kang Jan 2009

Aging And Gender In The Coronary Microcirculation: Effects Of Oxygen And Hydrogen Peroxide., Lori S. Kang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Study I examined the effects of aging and reactive oxygen species on flow-mediated vasodilation in coronary arterioles. Isolated coronary arterioles of young (4 mo) and aged (24 mo) male Fisher 344 rats were subjected to stepwise increases in flow (0–50 nL/sec) in the presence and absence of superoxide dismutase (SOD) mimetic Tempol (100 µM), hydrogen peroxide (H2 O2) scavenger catalase (100 U/mL), Tempol + catalase, or Tempol + deferoxamine (100 µM), an iron chelator and inhibitor of hydroxyl radical formation. Flow-induced nitric oxide (NO) and H2O 2 production decline with age, as measured by diaminofluorescein (DAF) and dichlorodihydrofluorescein (DCF) fluorescence, …

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Gis Analyses Of Paleo-Fire Regimes In Ponderosa Pine (Pinus Ponderosa) Forests: Extending Spatial Approaches In Ecological Interpretation., James T. Kernan Jan 2009

Gis Analyses Of Paleo-Fire Regimes In Ponderosa Pine (Pinus Ponderosa) Forests: Extending Spatial Approaches In Ecological Interpretation., James T. Kernan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fire is an inherently spatial process that is tightly coupled to spatial patterns in climate and topography. This is particularly true in the dry western United States, where confounded by the legacy of fire suppression and the trend in global warming, large high severity fires are increasingly frequent. Recent work has integrated space and time analyses of fire regimes through the application of geographic information science (GIS). GIS was developed for spatial studies, and it can be effective in multi-dimensional interpretations of fire ecology in many vegetated ecosystems. In order to examine the role of fire in dry ponderosa pine …

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Sensitivity Analysis Of Reliability For Structure-Based Software Via Simulation, Jun Xu Dec 2008

Sensitivity Analysis Of Reliability For Structure-Based Software Via Simulation, Jun Xu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Computer simulation is an appealing approach for the reliability analysis of structure-based software systems as it can accommodate complexities present in realistic systems. When the system is complex, a screening experiment to quickly identify important factors (components) can significantly improve efficiency of the analysis. The challenge is to guarantee the correctness of the screening results with stochastic simulation responses. Control Sequential Bifurcation (CSB) is a new method for factors screening using simulation experiments, when only main effects models are considered. By grouping factors, CSB can identify the importance of factors while reducing the simulation effort. With appropriate hypothesis testing procedures …

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Development And Verification Of A Laboratory For The Emissions Testing Of Locomotive Engines, Michael R. Shahan Dec 2008

Development And Verification Of A Laboratory For The Emissions Testing Of Locomotive Engines, Michael R. Shahan

Graduate Theses, Dissertations, and Problem Reports (ETD)

West Virginia University (WVU) currently has a Transportable Emissions Laboratory capable of measuring the exhaust constituents produced by a heavy duty diesel engine. The laboratory has the capability of measuring the exhaust constituents from a partial exhaust stream of a locomotive diesel engine. As the field of locomotive engine emissions testing broadens, it has become desirable for WVU to develop a laboratory that is capable of sampling the gaseous exhaust constituents produced by a locomotive engine from a raw, undiluted gas stream, in tandem with a partial flow dilution tunnel system for particulate matter. This document provides the design philosophy …

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Thermal Analysis Of Tilted Roofs Composed Of Two Separated Surfaces, Orlando J. Ugarte-Almeyda Dec 2008

Thermal Analysis Of Tilted Roofs Composed Of Two Separated Surfaces, Orlando J. Ugarte-Almeyda

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to the rising power costs and lack of nonrenewable energy sources, the cooling of houses is becoming more expensive. Looking for alternative methods applicable to this process is becoming not only an option, but also a necessity. Changes in the roof structure of buildings can be applied in order to achieve a more favorable thermal transmission behavior. The utilization of a tilted roof, composed of two separated surfaces, generates natural convection currents in the channel between them. These currents, after driving off part of the transferred heat, decrease the temperature of the lower surfaces and consequently, the heat flux …

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