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

Digital Commons Network™

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

2006

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 601 - 630 of 20365

Full-Text Articles in Entire DC Network

Optimization Of The Tool Path In A Robotic Environment, Mukund Venkatachari Narasimhan Dec 2006

Optimization Of The Tool Path In A Robotic Environment, Mukund Venkatachari Narasimhan

Mechanical and Aerospace Engineering Dissertations - Archive

The rising costs and demand coupled with shrinking energy generating resources has triggered the need for optimum use of energy resources, minimizing the overhead costs and maximizing the profits. Robots have been long touted as a fit replacement of human labor force in manufacturing sectors. Slowly there is increased presence of robots in automobile and electronic industries. Typically they are used for welding, painting, ironing, assembly, pick and place, inspection, and testing. Mass production, fulfilling the ever increasing demand, can be accomplished by robots because of their precision, speed of operation and high endurance capabilities. This dissertation comprises of two …


Perception Of Diversity, Niveditha Parthasarathy Dec 2006

Perception Of Diversity, Niveditha Parthasarathy

Psychology Theses - Archive

Two studies were conducted to examine effects of diversity on perception. The primary purpose of the first study was to see how people perceive diverse groups, how comfortable they are working in such groups, and how attracted they are to diverse groups. Results indicated that people prefer working with groups that represented their ethnicity (race-inclusion) and perceived such groups to be more attractive than groups that did not represent their ethnicity (race-exclusion). Also, White participants were more attracted to diverse groups and more willing to work in diverse groups than Black participants. Most importantly, the preference of race-inclusion pictures to …


Spatial Patterns And Determinants Of Industrial Regional Growth In Mexico, 1993-2003: Implications For Regional Planning And Public Policy, Jesus Antonio Trevino Dec 2006

Spatial Patterns And Determinants Of Industrial Regional Growth In Mexico, 1993-2003: Implications For Regional Planning And Public Policy, Jesus Antonio Trevino

Public Affairs Dissertations - Archive

This research investigates industrial regional growth and its determinants in Mexico from 1993 to 2003. Strategies of local economic development, usually based on industrial promotion, require knowing main determinants of industrial regional growth. The case study shows that there is no variable with a systematically strong effect for all industries which policymakers and planners might directly control. This finding warns us about generic policy designs uncritically based on outcomes from other experiences. Although these results show a complex problem in terms of regional policy, some recommendations for industrial spatial distribution may, however, be derived from this study. For instance, during …


Urban Rivalry In A Rural County: The Contest For Dominance Between Rockdale And Cameron In Milam County, Texas, 1873-1954, Philip Guy Pope Dec 2006

Urban Rivalry In A Rural County: The Contest For Dominance Between Rockdale And Cameron In Milam County, Texas, 1873-1954, Philip Guy Pope

History Theses - Archive

Throughout the history of the United States, natural resources have played key roles in determining where towns are formed, and when towns will die. For just as long, waterways, roadways, and railroads have played an equally important role in determining the location and success of many towns. This thesis builds on these two broad themes—resources and transportation—to examine how Rockdale, Texas was able to become the most powerful town in southern Milam County, and successfully compete with Cameron, Texas for dominance in Milam County. Cameron was the established county seat in Milam County when in 1873, the International & Great …


Novel Functions And Physiological Significance Of Ral Interacting Protein - Rlip76 In In Vitro And In Vivo Models, Ewa L. Zajac Dec 2006

Novel Functions And Physiological Significance Of Ral Interacting Protein - Rlip76 In In Vitro And In Vivo Models, Ewa L. Zajac

Chemistry & Biochemistry Dissertations - Archive

This dissertation is divided into four parts. The first part is an introduction of energy dependent xenobiotic transporters and their relevance in multidrug resistance. However, the main focuse is the description of RLIP76 protein, non-ABC transporter, which it the most efficient transporter of glutathione conjugates and anti-cancer drugs. The second part describes materials and methods that were used in two investigated projects. The third part explains the correlation of RLIP76 with signaling protein POB1 and an involvement of these two proteins in apoptosis of lung cancer cells. The effect of recombinant POB1 and its deletion mutant POB11-512, on transport activity …


Analysis Of Hat Sectioned Reinforced Composite Beams Including Thermal Effects, Kashif Ali Nayyer Syed Dec 2006

Analysis Of Hat Sectioned Reinforced Composite Beams Including Thermal Effects, Kashif Ali Nayyer Syed

Civil Engineering Dissertations - Archive

A simple analytical method for analyzing fiber reinforced polymeric composite beams with hat cross-section is presented. The method includes development of closed-form expression of the axial, bending and their coupling stiffness matrices for the composite beams. The stiffness matrices are obtained by transforming the actual geometrical cross-section of the beam into an equivalent plate using transformation matrices and Parallel Axis theorem. Ply stresses due to mechanical as well as thermal load can easily be obtained at any given location of the beam section. In this approach, the effect of induced in-plane deformation due to bending for an unsymmetrical cross-section is …


Generation Planning And Market Operation Strategies In The Southwest Power Pool Energy Imbalance Service Market, Kittipong Methaprayoon Dec 2006

Generation Planning And Market Operation Strategies In The Southwest Power Pool Energy Imbalance Service Market, Kittipong Methaprayoon

Electrical Engineering Dissertations - Archive

The transition of the Southwest Power Pool (SPP) from its traditional operation under tariff towards the new market environment has significant impact on the utilities in the SPP footprint, both in terms of planning and operations. The new market regulation creates the need for the utilities to reassess their planning strategy, primarily to ensure that operational decisions conform to the new market rules while remain profitable under the new operating regime. The utilities are referred to as Market Participants (MP) under the new market scheme. The new market environment will expose the MPs to a large amount of information with …


Fiber Optic Scanner Using Electromagnetic Actuation With Different Ferromagnetic Materials, Pratibha C. Phuyal Dec 2006

Fiber Optic Scanner Using Electromagnetic Actuation With Different Ferromagnetic Materials, Pratibha C. Phuyal

Electrical Engineering Theses - Archive

A fiber optic scanner capable of scanning medical imaging actuated by an external magnetic field is designed and characterized using different magnetized and non magnetized ferromagnetic materials. Cobalt, Iron, Nickel, and Samarium Cobalt powders were used before and after magnetization to perform the actuation. Plastic optical fiber and a silica optical fiber are coated with 70 % enamel paint with 30 % different ferromagnetic materials mixed using brush. Due the low Young's Modulus, the plastic optical fiber could not actuate like silica optical fiber. Therefore, the silica fiber was used to conduct the experiments. The static and dynamic measurements were …


Early Belgian Colonial Efforts: The Long And Fateful Shadow Of Leopold I, Robert R. Ansiaux Dec 2006

Early Belgian Colonial Efforts: The Long And Fateful Shadow Of Leopold I, Robert R. Ansiaux

History Dissertations - Archive

The continuing debate over the causes, effects and future implications of European colonialism and imperialism is perhaps best viewed through a transatlantic lens. The various phases of imperialism from 1415 through 1914 provide ample time and examples of this continuous cultural interchange. The last of these interchanges, forced or otherwise, is that of the New Imperialism of 1860-1914. Discussions of later globalization and economic/cultural imperialism are not covered. That discussion is a different subject perhaps requiring different tools of analysis, especially economic. The impact of this last period reverberates through the current world discussion on rights, obligations, morality and law, …


Fiends Who Bear The Shapes Of Men: Case Studies On White Male And Black Female Relationships In The South, Amanda Bayne Pritchard Dec 2006

Fiends Who Bear The Shapes Of Men: Case Studies On White Male And Black Female Relationships In The South, Amanda Bayne Pritchard

History Theses - Archive

Slave women resisted being sexually dominated by white men, by refusing to accept that their lives were beyond their control. By examining cases of slave women who resisted white sexually assertive men, I will display how women slave women resisted the status of sexual subjugation, and instead used their sexuality to manipulate situations to improve their quality of life. Slave women were not immune to the sexual corruption in the South, but they used their circumstances to provide themselves with a healthier lifestyle. Based upon a slave woman's response to the sexual advances of whites, one can determine that there …


Miniature Optical Coherence Tomography Probe, Asif Rizwan Dec 2006

Miniature Optical Coherence Tomography Probe, Asif Rizwan

Bioengineering Theses - Archive

A piezo based optical scanner for high speed optical coherence tomography (OCT) has been developed. Design of the miniature probe has been optimized to take advantages of the high speed depth scanning that can be achieved with spectral domain OCT (SD-OCT) systems. Three prototype scanning probes were constructed and tested for OCT imaging. Movies and images of tissues are presented which were taken at frame rates ranging from 50~100fps. Data were acquired at 18000 A-lines per second at an effective integration time of 55us.


Optical Coherence Tomography Of Oral Mucosa, Nidhi Bharatbhai Mehta Dec 2006

Optical Coherence Tomography Of Oral Mucosa, Nidhi Bharatbhai Mehta

Bioengineering Theses - Archive

Oral cancer causes 120000* deaths annually around the world and 280000* new cases are diagnosed every year. Technology has developed and the death rate of oral cancer has improved over the last few decades; hence to improve the survival rate, development of a technique able to diagnose carcinomas in its early stages is very important. OCT is a non invasive imaging technique capable to provide high resolution microstructure images of tissue. A development of in vivo OCT; capable to image tissue with micrometer resolution and able to identify pre cancerous morphological changes non invasively could improve survival rate in cancer …


A Study Of Factors Affecting Scale Roughness In The Western Diamondback Rattlesnake (Crotalus Atrox), Amber Gail Skach Dec 2006

A Study Of Factors Affecting Scale Roughness In The Western Diamondback Rattlesnake (Crotalus Atrox), Amber Gail Skach

Biology Theses - Archive

Reptilian scales are very complex with patterns across their surface like a human fingerprint. These patterns are species specific, but there has been no way to quantify differences. A new technique using the confocal microscope allows measurement of the roughness of a surface. The roughness of the scales of Crotalus atrox were measured and compared with factors such as sex, age, clade, and various environmental variables to determine if this technique may be useful in determining species. The results found that the roughness of a scale decreased as the snake aged, and was significantly different between the two clades; the …


Geographic Variation In The Morphometrics Of Emydoide Blandingii, Maggie M. Camperlengo Dec 2006

Geographic Variation In The Morphometrics Of Emydoide Blandingii, Maggie M. Camperlengo

Biology Theses - Archive

Morphometric measurements were taken from museum specimens Emydoidea blandingii. Samples were taken from Michigan, Wisconsin, Illinois, Iowa, Nebraska, New York and Minnesota as well as from Ontario, Canada. Populations of this species have become increasingly fragmented and isolated during the past century due primarily to the urbanization of North America which has included increased road related fatalities and habitat destruction. An examination of physical characteristics was conducted to determine if morphometric analysis could indicate differences among the various populations. Twenty-eight measurements were made and compared to detect physical distinctions between populations. Individuals were then classified geographically based on east (C), …


Finite Element Modeling Of Carbon Nanotube Reinforced Polymer Composites And Evaluating Its Thermal Conductivities, Raghuram Basavanahalli Dec 2006

Finite Element Modeling Of Carbon Nanotube Reinforced Polymer Composites And Evaluating Its Thermal Conductivities, Raghuram Basavanahalli

Mechanical and Aerospace Engineering Theses - Archive

High thermal conductivity of carbon nanotubes has motivated us to study and understand the thermal mechanisms in nanocomposites. Though several theoretical models predict a high thermal conductivity for CNT reinforced polymer composites, the experimental validation are not so encouraging. A finite element model of MWNT reinforced nanocomposite is developed based on continuum mechanics approach. The finite element model is a representative volume element (RVE) with single MWNT inclusion. The inclusion is modeled based on the continuum model of MWNT as effective solid fiber [22].The interface resistance between the nanotube and the matrix material is modeled using thermal contact elements. The …


Structural Analysis Of Fiber Reinforced Composite Materials, Cesar Augusto Rojas Dec 2006

Structural Analysis Of Fiber Reinforced Composite Materials, Cesar Augusto Rojas

Mechanical and Aerospace Engineering Theses - Archive

A study of fiber reinforced composite structures is conducted .This study includes laminate analysis, analysis of laminated composite beams and parametric study of composite beams. Finite element analysis for each beam model is conducted to verify the results obtained by analytical model. The analysis of the laminated beams in this study covers: 1. beam with a solid rectangular cross-section subjected to a transverse load 2. beam with a I-section under bending 3. beam with a squared tubular section under bending 4. beam with truss section under bending One of the principal purposes of this thesis is to create a user …


Investigation On The Mechanism Of Interface Electromigration (Em) In Copper (Cu) Thin Films, Jee Yong Kim Dec 2006

Investigation On The Mechanism Of Interface Electromigration (Em) In Copper (Cu) Thin Films, Jee Yong Kim

Material Science and Engineering Dissertations - Archive

This study concerns the mechanism of the interface electromigration (EM) in copper (Cu) thin films. While EM in Cu is one of the most concerned reliability failure phenomena in Cu interconnects used microelectronic devices, its mechanism is not well understood yet. In order for better understanding of the EM mechanism, this study attempt to investigate the interface EM mechanism by examining the passivation effects on Cu EM using a cross-strip structure where Cu lines are cross-stripped with different passivation layers. From the observation of the marker polarity (hillocks and voids), the interface EM mechanism is determined whether the passivation layer …


Acknowledgements, The Mcnair Team Dec 2006

Acknowledgements, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.


Metaphysical Poetry: A History And A Legacy, Codi Blackmon Dec 2006

Metaphysical Poetry: A History And A Legacy, Codi Blackmon

McNair Scholars Research Journal

No abstract provided.


Trends Of Vehicular Emissions Due To The Effect Of Ethos® Fr As Fuel Additive, Shruthi Satyanarayan Dec 2006

Trends Of Vehicular Emissions Due To The Effect Of Ethos® Fr As Fuel Additive, Shruthi Satyanarayan

Civil Engineering Theses - Archive

The main objective of this research was to observe if the addition of the fuel additive Ethos Fuel Reformulator significantly reduced the emissions of CO, CO2, HC and NOX from a light duty vehicle. Data collection was carried out before and after the application of Ethos FR for both Peak and Off-peak traffic conditions, on highway as well as arterial test track. The OBS-1300 analyzed second by second concentrations of the tailpipe emissions. Data analysis was conducted and the following results were observed. 1. There was a significant reduction in NOx Emissions, with the maximum of 45% in the Arterial …


Evidence Of Competition Between Law Schools, Naushaba Zaman Dec 2006

Evidence Of Competition Between Law Schools, Naushaba Zaman

Economics Theses - Archive

The purpose of this paper is to measure how competition affects tuition rates of law schools. I hypothesize that the tuition rates will go up as concentration of law schools increase. To examine how tuition varies with competition, I need to measure market structure. A variety of measures are available, such as C4, C8, and HHI; all of which have some relationship to the degree of competitiveness in an industry. I primarily use HHI as the concentration measure in this paper. I make two models for my thesis. In my first model I use a statewide measure of competition, assuming …


Hold Your Tongue: Female Speech And Male Anxieties In Early Modern England, Lindsey Nicole Lanzisero Dec 2006

Hold Your Tongue: Female Speech And Male Anxieties In Early Modern England, Lindsey Nicole Lanzisero

English Theses - Archive

For early Modern England, containing female speech was essential to maintaining order. Through their speech, women could raise questions about and subvert patriarchal power. The frequency of this trope shows that there was a great apprehension about what speech and the tongue could accomplish. The female tongue was used as a metaphor for many problems and issues within the culture. This thesis analyzes two body politic metaphors in which the female tongue as a character wreaks havoc on the social body. Thomas Tomkis and William Averell utilize this metaphor in very different ways. Tomkis uses comedy to communicate with rhetorical …


Incomplete Compensation And Migration Behavior: Has Anything Changed Between 1990 And 2000?, William E. Herrin, David E. Clark, Thomas Knapp, Nancy White Dec 2006

Incomplete Compensation And Migration Behavior: Has Anything Changed Between 1990 And 2000?, William E. Herrin, David E. Clark, Thomas Knapp, Nancy White

School of International Studies Faculty Articles

Spatial equilibrium models rely on migration to arbitrage away differences in utility across locations net of moving costs, where remaining differences in wages and rents reflect the compensating differentials related to site-specific amenities. Recent refinements to the spatial equilibrium model focus upon the prospect of disequilibrium in amenity markets. Amenity market disequilibrium implies over- or undercompensation (incomplete compensation) across some locations, which suggests a role for these factors in subsequent migration. This paper follows the theoretical and empirical approach of Clark, Herrin, Knapp, and White (2003). An intercity wage regression is estimated where fixed effects capture the impact of site …


Gary Snyder's Idiosyncratic Buddhist Poetics And The "Razoredge"., David Gerhardt Thimme 1970- Dec 2006

Gary Snyder's Idiosyncratic Buddhist Poetics And The "Razoredge"., David Gerhardt Thimme 1970-

Electronic Theses and Dissertations

Gary Snyder's poetry conveys Zen states of consciousness through unconventional grammar and syntax. From his first book Riprap in 1959 to his last collection of poems, Mountains and Rivers Without End in 1996, he has confronted the challenge of transforming Buddhist philosophy and discourse into Western poetics. Snyder's syncretism pertaining to Buddhist and Native American beliefs form a unique view of Zen that suggests his precise involvement with the meditative self-discipline may be unstable and elusive. A close reading of Snyder's idiosyncratic Buddhist poetics reveals an impasse between a "non-verbal" realm, where the Cartesian duality of subject and object dissolves, …


Effective Teaching Of African American Students Who Receive Special Education Services., Nancy Stone Bealmear Dec 2006

Effective Teaching Of African American Students Who Receive Special Education Services., Nancy Stone Bealmear

Electronic Theses and Dissertations

This dissertation is an examination of effective teaching of African American students who receive special education services by teachers who are either National Board Certified Teachers or Highly Qualified Master's Level teachers. It begins with an overview of the history of special education in the United States and the current conditions of special education. It then covers the matter of overrepresentation of African American students in special education and the various contributors to that problem. The conceptual framework is to examine the self-efficacy and best practices of National Board Certified Teachers or Highly Qualified Master's Level teachers from middle and …


Men, Cohesion, And Battle : The Inniskilling Regiment At Waterloo., Mark Richard Bois Dec 2006

Men, Cohesion, And Battle : The Inniskilling Regiment At Waterloo., Mark Richard Bois

Electronic Theses and Dissertations

This thesis is a social and military history of the First Battalion of the 27th Foot, the Inniskilling Regiment, at the Battle of Waterloo. Crucial to success in battle is the cohesion of units and their ability to withstand punishment and keep fighting. This paper offers an examination of the constituent elements of unit cohesion as manifested in the demonstrable staying power of the Inniskillings. The Inniskillings' battlefield experience is a case study in cohesion: by understanding the devastating battlefield experience of the 1/27th, the only all-Irish infantry unit at Waterloo, it is then possible to examine the many elements …


The Development Of A Design Ontology For Products And Processes, Md Baniamin Sarder Dec 2006

The Development Of A Design Ontology For Products And Processes, Md Baniamin Sarder

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

This research develops a methodology called, Design Knowledge Acquisition Process (DKAP) for creating ontology of product and process design using IDEF5 and to develop a consistency matrix for checking accuracy of captured information. It constructs an ontology of a generic product and process design using the developed DKAP methodology. Designing products and processes is very challenging and vital for manufacturing enterprises to stay in the competitive market. Manufacturers want to launch their products in the market as quickly as possible while satisfying their customers in terms of quality, cost and delivery. In order to lunch the products early and/or to …


Convex Versions Of Multivariate Adaptive Regression Splines And Implementations For Complex Optimization Problems, Dachuan Thomas Shih Dec 2006

Convex Versions Of Multivariate Adaptive Regression Splines And Implementations For Complex Optimization Problems, Dachuan Thomas Shih

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Multivariate Adaptive Regression Splines (MARS) provide a flexible statistical modeling method that employs forward and backward search algorithms to identify the combination of basis functions that best fits the data. In optimization, MARS has been used successfully to estimate the value function in stochastic dynamic programming, and MARS could be potentially useful in many real world optimization problems where objective (or other) functions need to be estimated from data, such as in simulation optimization. Many optimization methods depend on convexity, but a nonconvex MARS approximation is inherently possible because interaction terms are products of univariate terms. In this dissertation, convex …


A Methodology For Evaluating The Performance Of Reverse Supply Chains In Consumer Electronics Industry, Srikanth Sastry Yellepeddi Dec 2006

A Methodology For Evaluating The Performance Of Reverse Supply Chains In Consumer Electronics Industry, Srikanth Sastry Yellepeddi

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Enterprises around the world are employing reverse supply chain practices to generate profit making opportunities while meeting new regulations. As a result of the rapid progress in technology the product lifecycles are shrinking faster than ever. In the face of global competition, heightened environmental regulations and a wealth of additional profits and improved corporate image opportunities, performing the reverse supply chain operations at a world class level is becoming quintessential. These factors in addition to the inherent complexity of reverse supply chains due to the uncertainties associated with the quantity, quality, and timing of returns make returns management very complicated. …


Don't Be A Phish: Steps In User Education, Stefan Robila, James W. Ragucci Dec 2006

Don't Be A Phish: Steps In User Education, Stefan Robila, James W. Ragucci

Department of Computer Science Faculty Scholarship and Creative Works

Phishing, e-mails sent out by hackers to lure unsuspecting victims into giving up confidential information, has been the cause of countless security breaches and has experienced in the last year an increase in frequency and diversity. While regular phishing attacks are easily thwarted, designing the attack to include user context information could potentially increase the user's vulnerability. To prevent this, phishing education needs to be considered. In this paper we provide an overview of phishing education, focusing on context aware attacks and introduce a new strategy for educating users by combining phishing IQ tests and class discussions. The technique encompasses …