Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Other

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type

Articles 16141 - 16170 of 25826

Full-Text Articles in Entire DC Network

Black Rhetoric: The Art Of Thinking Being, April Leigh Kinkead Jan 2013

Black Rhetoric: The Art Of Thinking Being, April Leigh Kinkead

English Dissertations - Archive

This dissertation examines the Black Hermeneutic Situation in order to uncover Black Rhetoric's possibilities for thinking Being. Martin Heidegger's phenomenological hermeneutics and his theories on thinking and Being provide the theoretical framework through which this dissertation unconceals Black Rhetoric's historical and philosophical origins in Ancient Egypt (i.e., Kemet). In order to examinine the Black Hermeneutic Situation and its saying through Black Rhetoric, this examination establishes the benefits of Heidegger's phenomenological hermeneutics to an analysis of Black Rhetoric's lineage from Kemet to the United States via the Egyptian Diaspora and the Atlantic Slave Trade. Investigating the historical and philosophical origins of …

Go to article

Synthesis Of Silver-Diamond Like Carbon Thin Films By Magnetron Sputtering, Venkatesh Majji Jan 2013

Synthesis Of Silver-Diamond Like Carbon Thin Films By Magnetron Sputtering, Venkatesh Majji

Material Science and Engineering Theses - Archive

Diamond-like carbon thin films are been used in wide range of applications due to their attractive tribological properties. Metal-doped DLC films have significant properties which make them compatible to use in larger variety of applications. The present study examines the dispersion and their effect on various tribological properties when Ag is incorporated into the DLC thin films. These Ag-DLC nanocomposite films were synthesized by a hybrid CVD and magnetron sputtering process in a discharge composed of CH4, and Ar atmosphere. These DLC and Ag-DLC films were characterized by Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy …

Go to article

Mapping Men: Toward A Theory Of Material Masculinity, David R. Wallace Jan 2013

Mapping Men: Toward A Theory Of Material Masculinity, David R. Wallace

English Dissertations - Archive

This project interrogates the possibilities of material gender theory as an interdisciplinary bridge between critical theory—like gender studies and eco–criticism—and soft–scientific men's studies. The primary theoretical argument of Mapping Men is for a re–theorizing of men's studies' social-constructionist models of masculinity in light of more contemporary critical queer and feminist theories of materiality. I assert that 19th, 20th, and 21st century American literature about rurality and masculinity highlights the unmapped, material middle–spaces (what post-structural feminist Rosi Braidotti calls the "in betweens") between socially–constructed theories of gender and the subjective, embodied experience of being male in rural places. Using an interdisciplinary …

Go to article

Embodied Climate Change: Materiality, Language, Mediation, And The Legitimation Of The Unintelligible, Justin Lerberg Jan 2013

Embodied Climate Change: Materiality, Language, Mediation, And The Legitimation Of The Unintelligible, Justin Lerberg

English Dissertations - Archive

“Embodied Climate Change: Materiality, Language, Mediation and the Legitimation of the Unintelligible” examines the intersections of language, technology, and the human and nonhuman worlds through the example of climate change. I posit that human technology, specifically language and digital media, have codified the human and nonhuman worlds into a “mixed-reality” of virtual, actual, and potential lived experiences. These technologies have, for better or for worse, de-materialized local human embodiment and re-materialized it in the global sphere of a technological/natural-reality. The re-materialization shapes not only how humans locate themselves within the world but also how they approach and understand phenomenon like …

Go to article

Effects Of Strain Energy Release Rate On Delamination In Temperature Environment, Venkata Naga Ravitej Sankarabatla Jan 2013

Effects Of Strain Energy Release Rate On Delamination In Temperature Environment, Venkata Naga Ravitej Sankarabatla

Mechanical and Aerospace Engineering Theses - Archive

Delamination is the weakest and major failure mode in laminated composites. Extensive efforts on initiation and growth of delamination under mechanical load have been investigated. A little emphasis was made earlier to account for the delamination in laminates under temperature loading. Strain energy release rate, a fracture mechanics parameter has been widely accepted to use for study the characteristics of delamination growth. In order to conduct a quick assessment of delamination growth, a closed form expression is developed to quantify the strain energy release rate of the laminate subjected to temperature environment. A finite element model is also developed to …

Go to article

Role Of Engine Age And Lubricant Chemistry On The Characteristics Of Egr Soot, Olusanmi Adeniji Adeniran Jan 2013

Role Of Engine Age And Lubricant Chemistry On The Characteristics Of Egr Soot, Olusanmi Adeniji Adeniran

Material Science and Engineering Theses - Archive

Exhaust products of Diesel Engines serves as an environmental hazard, and to curtail this problem a Tier 3 emission standard was introduced which involves change in engine designs and introduction of EGR systems in Diesel engines. EGR systems, however has the challenge of generating soot which are abrasive and are major causes of wear in Diesel engines. This work has studied the characteristics of EGR soot formed in different range of engine age and in different lubricant chemistries of Mineral and Synthetic based diesel Oils. It is found that lubricant degradation is encouraged by less efficient combustion as engine age …

Go to article

The Found Object(S) Of Rhetoric, Nathan Gale Jan 2013

The Found Object(S) Of Rhetoric, Nathan Gale

English Dissertations - Archive

The following dissertation expands the notion of posthumanism beyond the work in transhumanism, new media studies, animal studies, and material feminism by incorporating speculative realist philosophies into and with the Aristotelian concept of "faculty" or dunamis. Since Aristotle defines rhetoric as a dunamis (or potential to persuade and/or be persuaded), but also uses the term in his Physics and Metaphysics to describe the contingent potentiality found in material objects, I argue for a posthuman rhetoric that recognizes extra-symbolic forms of persuasion. Drawing from the philosophical work of Levi Bryant, Graham Harman, and Ian Bogost coupled with the rhetorical work of …

Go to article

Cold Plasma Treatment Of Magnetic Nanoparticles, Ke Wang Jan 2013

Cold Plasma Treatment Of Magnetic Nanoparticles, Ke Wang

Material Science and Engineering Theses - Archive

This thesis investigates the application of cold plasma to remove the oleic acid bonded on magnetic nanoparticles: SmCo5 nanoflakes prepared via surfactant assisted high energy ball milling and CoFe2O4 nanoparticles prepared via chemical synthesis. Oleic acid molecules bonded on nanoparticles are in the carboxylate form which could not be washed away by organic solvents in ultrasonic bath; only free oleic acid molecules left on the nanoparticle surface after ball milling can be washed away through ultrasonic bath. High temperature annealing method works for removing oleic acid but nanoparticles would be damaged because of oxidation and decomposition.The RF cold plasma has …

Go to article

The Possibilities Of Children's Literature: A Rhetoric-Oriented Approach To Juvenile Texts, Basil Chadwick Chisholm Jan 2013

The Possibilities Of Children's Literature: A Rhetoric-Oriented Approach To Juvenile Texts, Basil Chadwick Chisholm

English Dissertations - Archive

This rhetoric-oriented dissertation examines the academic discussion of children's literature, especially the influence of Jacqueline Rose and her landmark book The Case of Peter Pan, or the Impossibility of Children's Fiction (1984). The implications of Rose's claim is that an entire school of interpretation within children's literature scholarship arose that began to (1) question (tacitly or overtly) whether it was possible for adult writers to really compose texts for children and (2) even suggest that the literature is something similar to a subversion and even exploitation of a child reader. This dissertation seeks to reopen the issue that Rose first …

Go to article

Investigation Of Side Wall Effects On An Inward Scramjet Inlet At Mach Number 8.6, Tiago Cavalcanti Rolim Jan 2013

Investigation Of Side Wall Effects On An Inward Scramjet Inlet At Mach Number 8.6, Tiago Cavalcanti Rolim

Mechanical and Aerospace Engineering Dissertations - Archive

Experimental and computational studies were conducted to evaluate the performance of a scramjet inlet as the side cowl length is changed. A slender inward turning inlet with a total length of 304.8 mm, a span of 50.8 mm with a top and a bottom compression ramp each at 11.54 deg and a compression ratio of 4.79 was used. The side cowl lengths were of 0, 50.8 and 76.2 mm. The UTA Hypersonic Shock Tunnel facility was used in the reflected mode to test the inlet model. The model was instrumented with nine piezoelectric pressure transducers, for static and total pressure …

Go to article

Development Of Artificial Neural Network Based Black Box Model Of A Data Center As A Temperature Predicting Tool As A Function Of Server Location, Dissipating Server Heat And Crac Fan Speed, Chinmay N. Date Jan 2013

Development Of Artificial Neural Network Based Black Box Model Of A Data Center As A Temperature Predicting Tool As A Function Of Server Location, Dissipating Server Heat And Crac Fan Speed, Chinmay N. Date

Mechanical and Aerospace Engineering Theses - Archive

Modern data centers consume an astonishing 1.3\% power all around the world. As the number of data centers continue to grow, there is an increasing need and demand to develop new ways to reduce the power footprint. Several approaches are being made to achieve this. One of such several approaches is to develop control systems that would keep the data centers running energy efficiently. Various control theories have been developed throughout the world to achieve the optimal energy efficient state. However, during the synthesis of such control schemes, the CFD simulations take up excessive time for plotting the thermal map …

Go to article

Development Of Multi-Element Active Aerodynamics For The Formula Sae Car, James Patrick Merkel Jan 2013

Development Of Multi-Element Active Aerodynamics For The Formula Sae Car, James Patrick Merkel

Mechanical and Aerospace Engineering Theses - Archive

This thesis focuses on the design, development, and implementation of an active aerodynamics system on 2013 Formula SAE car. The aerodynamics package itself consists of five element front and rear wings as well as an under body diffuser. Five element wings produce significant amounts of drag which is a compromise between the cornering ability of the car and the acceleration capability on straights. The active aerodynamics system allows for the wing angle of attack to dynamically change their configuration on track based on sensory data to optimize the wings for any given scenario. The wings are studied using computational fluid …

Go to article

Compaction Physics Of Solid Additive Blends : A Thermal Properties Study, Amy Brown Jan 2013

Compaction Physics Of Solid Additive Blends : A Thermal Properties Study, Amy Brown

Material Science and Engineering Theses - Archive

Compacted solid additive blends have attracted the interest of the polymers industry due to their ability to improve processability. However, limited research has been performed to analyze the thermal properties that these additives have during pelletization.This research studies the reaction behavior of erucamide and silica, when in a pure and mixed form, with each other when thermal conductivity and frictional heating experiments are conducted. During the thermal conductivity study, it was found that pure erucamide had a thermal conductivity of 0.37 W/mK. The thermal conductivity of pure silica could not be found since silica will not compact to itself. Therefore, …

Go to article

A Source Code Search Engine For Keyword Based Structural Relationship Search, Asheq Hamid Jan 2013

A Source Code Search Engine For Keyword Based Structural Relationship Search, Asheq Hamid

Computer Science and Engineering Theses - Archive

In an Object Oriented Program, we often see that a package contains several classes, a class contains several methods, a method calls other methods. We may say, there is a contains relationship between a package and a class or a calls relationship between two methods. We refer to these relationships as structural relationships. There may be other structural relationships apart from contains or calls in the source code. A software developer may sometime want to search for structural relationships within source code. She may prefer using Google like free form query to do so. To facilitate free form query based …

Go to article

The Samara Spacecraft: Design And Development Of A Self-Stabilizing, Auto-Rotating, Distributed Sensing System, Amit Desai Lalloobhai Jan 2013

The Samara Spacecraft: Design And Development Of A Self-Stabilizing, Auto-Rotating, Distributed Sensing System, Amit Desai Lalloobhai

Mechanical and Aerospace Engineering Theses - Archive

The scope of this research is the design and development of a self-stabilizing re-entry vehicle that closely resembles naturally occurring seeds in nature. It was hypothesized that a femto-satellite with a shape of a samara could self stabilize and passively generate lift, as well as transmit a signal during its descent through the atmosphere. The research included a conceptual design phase and a preliminary design phase that entailed analytic simulations, and an experimental demonstration. The goal was to investigate the feasibility of developing the above-mentioned femto-vehicle that could increase the range capability of its descent to maximize data capture.

Go to article

Development And Operation Of An Integrated Sampling Probe And Gas Analyzer For Turbulent Mixing Studies In Complex Supersonic Flows, John D. Wiswall Jan 2013

Development And Operation Of An Integrated Sampling Probe And Gas Analyzer For Turbulent Mixing Studies In Complex Supersonic Flows, John D. Wiswall

Mechanical and Aerospace Engineering Theses - Archive

For many aerospace applications, mixing enhancement between co-flowing streams has been identified as a critical and enabling technology. Due to short fuel residence times in scramjet combustors, combustion is limited by the molecular mixing of hydrogen (fuel) and air. Determining the mixedness of fuel and air in these complex supersonic flowfields is critical to the advancement of novel injection schemes currently being developed at UTA in collaboration with NASA Langley and intended to be used on a future two-stage to orbit (~Mach 16) hypersonic air-breathing vehicle for space access.Expanding on previous work, an instrument has been designed, fabricated, and tested …

Go to article

Numerical Study Of Incompressible Fluid Flow In A Vertically Dropping Pool With And Without End Sill, Vimal Ramanuj Jan 2013

Numerical Study Of Incompressible Fluid Flow In A Vertically Dropping Pool With And Without End Sill, Vimal Ramanuj

Mechanical and Aerospace Engineering Theses - Archive

The study involves numerical analysis of flow field for three different flow regimes taking place in a vertically dropping pool. In general, a vertically dropping flow generates a skimming flow regime with one recirculation zone along with a developing shear layer. The presence of an obstacle (end sill) results in the formation of another recirculation zone downstream of the impinging jet. Based on the nature of these zones, the flow is categorized as napped, periodically oscillatory and skimming. The type of flow regime depends on the flow parameters like velocity and depth of flow which are controlled by Froude number. …

Go to article

3-D Fracture Study Of The Beol Cu/Low-K Stack To Assess And Mitigate The Cpi Risk During The Reflow Process, Zaeem Baig Jan 2013

3-D Fracture Study Of The Beol Cu/Low-K Stack To Assess And Mitigate The Cpi Risk During The Reflow Process, Zaeem Baig

Mechanical and Aerospace Engineering Theses - Archive

As scaling of components continues, using SiO2 as a dielectric in the Back-End-Of-Line (BEoL) is no longer a viable option and can be replaced with low-k and ultralow-k (ULK) dielectric materials for advanced integrated circuits (IC) packaging solutions. The low-k materials improve performance by reducing parasitic capacitance and crosstalk between adjacent metal lines. However, low-k dielectrics have lower modulus, lower fracture toughness, higher coefficient of thermal expansion (CTE), and poor adhesion as compared to SiO2. Thus, low-k dielectric integration in the contemporary IC packages poses a significant reliability challenge. Delamination along the metal-dielectric interfaces and crack propagation in the dielectric …

Go to article

A Novel Approach For Two-Dimensional Inclusion/Hole Problems Using The Airy Stress Function Method, Manikandan Madhavan Jan 2013

A Novel Approach For Two-Dimensional Inclusion/Hole Problems Using The Airy Stress Function Method, Manikandan Madhavan

Mechanical and Aerospace Engineering Theses - Archive

This thesis demonstrates the application of the Airy stress function in solving plane elasticity problems. An Airy stress function is determined for two-dimensional infinite plates containing a circular inclusion embedded with a circular hole subjected to tensile loading and the traction and displacement functions for various boundary conditions satisfy the equilibrium and continuity conditions. Mathematica was useful for solving the complex expressions and to calculate the elastic fields for a variety of elastic problems in this study.

Go to article

Modeling The Dynamic Behavior Of Estrogen Docking Into Its Receptor Using The Multiscale Analysis, Anudeep Palanki Jan 2013

Modeling The Dynamic Behavior Of Estrogen Docking Into Its Receptor Using The Multiscale Analysis, Anudeep Palanki

Mechanical and Aerospace Engineering Theses - Archive

This work models the dynamic behavior of Estrogen docking into its receptor. It lays the foundation for the development of a new theoretical screening technique to identify carcinogens. It is predicted that this year, more than 1 million Americans and more than 10 million people worldwide will be diagnosed with cancer. Only 5 to 10 percent of all cancer cases can be attributed to genetic defects, whereas the remaining 90 to 95 percent have their roots in the environment. It has been suggested that some chemical compounds have a similar structure and properties as natural hormones produced by the human …

Go to article

Utilization Of Microencapsulated Phase Change Material For The Optimization Of Evaporative Cooling Technology, Jeet Shah Jan 2013

Utilization Of Microencapsulated Phase Change Material For The Optimization Of Evaporative Cooling Technology, Jeet Shah

Mechanical and Aerospace Engineering Theses - Archive

IT equipments are the essential facet of most institutional operations of the advanced world. Modern IT equipments are far more vigorous than older equipments. With increasing density of array of servers and growth of computing power, assessing the cooling requirements has emerged as an aspect of prime importance. Evaporative cooling is a very common cooling technology used in cooling of data centers due to low installation and power costs and simple operation. Phase change materials have been investigated over the years as thermal energy storage for cooling and heating applications. These researches have also investigated encapsulated PCM in different sizes …

Go to article

A Neighborhood Foreseen: Identifying Social Capital On Congo Street, D. Deidre Humphrey Jan 2013

A Neighborhood Foreseen: Identifying Social Capital On Congo Street, D. Deidre Humphrey

Public Affairs Theses - Archive

The small Southeast Dallas community of Congo Street is not only unique because of its location within Jubilee Park neighborhood, but rather, it is a place where a group of five homeowners made history by cooperatively revitalizing their community with the assistance of the Building Community Workshop. Ongoing community redevelopment reveals that the homeowners are learning to use their social capital to mobilize within and throughout their community and neighborhood. The initial focus of the study aimed to discover how Congo Street residents use social capital to accept or reject community revitalization goals set by the Building Community Workshop and …

Go to article

The Impact Of Institutional Support Networks: A Case Study Of A Small Texas Public School District, Christine B. Fougerousse Jan 2013

The Impact Of Institutional Support Networks: A Case Study Of A Small Texas Public School District, Christine B. Fougerousse

Public Affairs Theses - Archive

This thesis project focuses on a small independent school district in Texas that serves a high-poverty population yet excels at graduating economically disadvantaged students. Using the concepts of cultural and social capital as a theoretical framework, the paper discusses ways that schools can build institutional support networks that can help students succeed. The study focuses on efforts within the high school, using personal interviews to discover the foundations and methods of the school's supports. Findings include the importance of building trust among staff members and staff members working as a team, therefore building internal social capital that students can then …

Go to article

Information Technology's Impact On The Space And Automobile Relationship: A Study Of The Link Between Internet Tech, Automobiles, And Residential Preferences, Steven Duong Jan 2013

Information Technology's Impact On The Space And Automobile Relationship: A Study Of The Link Between Internet Tech, Automobiles, And Residential Preferences, Steven Duong

Public Affairs Theses - Archive

Many city planners, developers, real estate agents, and planning academics have been strong proponents of compact, mixed-use, New Urbanist developments. They point to the research that shows that younger generations will favor the revitalized mixed use, dense, urban downtown centers advocated by urbanists like Jane Jacobs and Richard Florida over newly developed, spacious, quiet suburbs In fact, recent research on ICT and driving suggests that the advent of the smart phone and ubiquitous computing (Ubicomp) may be indeed influencing the lifestyle and preference of young adults, who rather than driving are substituting shopping, social, entertainment, and other trips with virtual …

Go to article

A Neighborhood Foreseen: Identifying Social Capital On Congo Street, D. Deidre Humphrey Jan 2013

A Neighborhood Foreseen: Identifying Social Capital On Congo Street, D. Deidre Humphrey

Public Affairs Theses - Archive

The small Southeast Dallas community of Congo Street is not only unique because of its location within Jubilee Park neighborhood, but rather, it is a place where a group of five homeowners made history by cooperatively revitalizing their community with the assistance of the Building Community Workshop. Ongoing community redevelopment reveals that the homeowners are learning to use their social capital to mobilize within and throughout their community and neighborhood. The initial focus of the study aimed to discover how Congo Street residents use social capital to accept or reject community revitalization goals set by the Building Community Workshop and …

Go to article

Narrowing The Sustainability Paradigm - How Meaningful Participation Builds Socially Equitable Communities, Megan L. O'Neal Jan 2013

Narrowing The Sustainability Paradigm - How Meaningful Participation Builds Socially Equitable Communities, Megan L. O'Neal

Public Affairs Theses - Archive

This work contributes to the third leg of the sustainability paradigm by addressing socially equitable communities in the field of Planning. It uses a case study of neighborhood planning in Seattle, Washington as its basis for linking meaningful public participation with social capital. It uses a thoughtful qualitative framework to measure social capital in primary and secondary sources and bases these parameters with expert knowledge from scholars within the social science fields.

Go to article

Structural Analysis At Aircraft Conceptual Design Stage, Reza Mansouri Jan 2013

Structural Analysis At Aircraft Conceptual Design Stage, Reza Mansouri

Mechanical and Aerospace Engineering Theses - Archive

In the past 50 years, computers have helped by augmenting human efforts with tremendous pace. The aircraft industry is not an exception. Aircraft industry is more than ever dependent on computing because of a high level of complexity and the increasing need for excellence to survive a highly competitive marketplace. Designers choose computers to perform almost every analysis task. But while doing so, existing effective, accurate and easy to use classical analytical methods are often forgotten, which can be very useful especially in the early phases of the aircraft design where concept generation and evaluation demands physical visibility of design …

Go to article

The Impact Of Institutional Support Networks: A Case Study Of A Small Texas Public School District, Christine B. Fougerousse Jan 2013

The Impact Of Institutional Support Networks: A Case Study Of A Small Texas Public School District, Christine B. Fougerousse

Public Affairs Theses - Archive

This thesis project focuses on a small independent school district in Texas that serves a high-poverty population yet excels at graduating economically disadvantaged students. Using the concepts of cultural and social capital as a theoretical framework, the paper discusses ways that schools can build institutional support networks that can help students succeed. The study focuses on efforts within the high school, using personal interviews to discover the foundations and methods of the school's supports. Findings include the importance of building trust among staff members and staff members working as a team, therefore building internal social capital that students can then …

Go to article

Numerical Simulations Of Transonic Wingtip, Suparat Chanrith Jan 2013

Numerical Simulations Of Transonic Wingtip, Suparat Chanrith

Mechanical and Aerospace Engineering Theses - Archive

This report presents numerical simulations using ANSYS FLUENT for a NACA 0012 wing both in two- and three-dimensional cases to compare with an experimental data. This comparison also allowed for any wall interference in wind tunnels to be examined. Moreover, the report also presents numerical simulation of a NACA 0012 wingtip. The simulations were conducted at Mach 0.5, 0.7, 0.75, and 0.8 at various chord Reynolds number and the angle of attack of 0, 2, 4, and 5. The numerical andexperimental data were in good agreement for the full wing and the wingtip cases.

Go to article

The Extent Of Social Disparities In Black And Hispanic Neighborhoods, Monique Coleman Jan 2013

The Extent Of Social Disparities In Black And Hispanic Neighborhoods, Monique Coleman

Public Affairs Theses - Archive

The argument of race and segregation is an age-old debate. Nevertheless, in 2013 there are still segregated black and Hispanic neighborhoods experiencing high levels of poverty despite the Fair Housing Act, inclusionary housing practices, and other methods that strive to create mixed-income and mixed-race neighborhoods. Since segregation appears to be a phenomenon that eludes a simple explanation, this research offers to shed light on the subject matter and guide others researching the subject matter to help ascertain the root(s) of social disparities in minority neighborhoods. This report is an extensive review of 2007-2011 American Community Survey (ACS) data for Dallas …

Go to article

First Prev Next Last