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Articles 31 - 42 of 42

Full-Text Articles in Engineering

Development And Validation Of The Structural Health Evaluation (SheTm) Program, Steven Worley Jan 2014

Development And Validation Of The Structural Health Evaluation (SheTm) Program, Steven Worley

Electronic Theses and Dissertations

No abstract provided.


Environmental Degradation Of Nano Enhanced Polymers In Low Earth Orbit, Mohammed Jaradat Jan 2014

Environmental Degradation Of Nano Enhanced Polymers In Low Earth Orbit, Mohammed Jaradat

Electronic Theses and Dissertations

No abstract provided.


Evaluation Of Cotton Valley "D" Sand Production In Stampede Field, Mississippi, U.S.A., Patrick Lawrence Murphy Jan 2014

Evaluation Of Cotton Valley "D" Sand Production In Stampede Field, Mississippi, U.S.A., Patrick Lawrence Murphy

Electronic Theses and Dissertations

No abstract provided.


Enhanced Pvdf Film For Multi Energy Harvesting, Ranmunige Nadeeka Karunarathna Jan 2013

Enhanced Pvdf Film For Multi Energy Harvesting, Ranmunige Nadeeka Karunarathna

Electronic Theses and Dissertations

No abstract provided.


Nitric Oxide Releasing Polymers For Vascular Graft Applications, Ifeanyi U. Onyejekwe Aug 2012

Nitric Oxide Releasing Polymers For Vascular Graft Applications, Ifeanyi U. Onyejekwe

Biomedical and Chemical Engineering - Dissertations

Nitric oxide [NO] is an endogenous gas involved in a multitude of physiological functions, ranging from vasodilatation, inflammatory response to inhibition of platelet aggregation. Significant interest exists for therapeutic application of exogenous NO, particularly for the improvement of foreign-body responses of biomaterials. One challenge amongst several others that must be taken into consideration is NO's short half-life, ranging from 2-3 s, in physiological systems. Researchers have worked on synthesizing materials, formally referred to as NO donors/NONOates capable of preserving NO and spontaneous gas release upon contact with blood under physiological conditions. Two groups of these commercially available NO ...


Determination Of Cutoff Frequencies Of Simple Waveguides Using Finite Difference Method, Sridhar Kolagani Jan 2012

Determination Of Cutoff Frequencies Of Simple Waveguides Using Finite Difference Method, Sridhar Kolagani

Electronic Theses and Dissertations

No abstract provided.


Development Of An Astm Draft Standard For The Elevated Temperature Moisture Conditioning Of Pultruded Fiber Reinforced Polymer Composites, Tunji Adejumo Jan 2011

Development Of An Astm Draft Standard For The Elevated Temperature Moisture Conditioning Of Pultruded Fiber Reinforced Polymer Composites, Tunji Adejumo

Electronic Theses and Dissertations

No abstract provided.


Developing A Retrofitting System To Mitigate Floodwall Failures Of New Orleans, James Tyler Kidd Jan 2011

Developing A Retrofitting System To Mitigate Floodwall Failures Of New Orleans, James Tyler Kidd

Electronic Theses and Dissertations

No abstract provided.


Enhancing Wireless Security Using Relay Based Cooperative Networks., Mohammad A. Kishk Jan 2011

Enhancing Wireless Security Using Relay Based Cooperative Networks., Mohammad A. Kishk

Electronic Theses and Dissertations

No abstract provided.


Active Flow Control Of Low Pressure Turbine Blade Separation Using Plasma Actuators, Karthik Ramakumar Jan 2006

Active Flow Control Of Low Pressure Turbine Blade Separation Using Plasma Actuators, Karthik Ramakumar

University of Kentucky Master's Theses

The current study examines plasma actuators as flow control devices. The actuators are placed on a turbine blade profile in a 2D turbine cascade for separation flow control. The configuration involves copper strips separated by a layer of dielectric material, across which an AC electric potential in the range of 5 kHz and 5 kV is applied. The efficiency of the actuator is monitored by measuring power input and flow control effectiveness. Preliminary observations are performed for a quiescent case on a flat plate profile to analyze the average and instantaneous velocities generated by the actuator for varied input parameters ...


Modeling Interface Failure In Fiber-Composites, Andrew J. Craig May 2005

Modeling Interface Failure In Fiber-Composites, Andrew J. Craig

Syracuse University Honors Program Capstone Projects

Interface failure has been studied in depth for more than the past twenty years due to its significant impact on the application of composite materials. The objective of this work is to investigate the role of the interface in the mechanical response of fiber-matrix composite materials subjected to an applied load. To do this, a single composite cylinder consisting of a rigid core, the fiber, and an elastic annulus, the matrix, with an interface of vanishing thickness separating them, is considered as the first step in what will later be representative of a composite material. Three non-linear, Needleman-type, force-separation relations ...


Texture, Microstructure And Formability Of Aluminum Alloys, Xiang-Ming Cheng Jan 2001

Texture, Microstructure And Formability Of Aluminum Alloys, Xiang-Ming Cheng

University of Kentucky Doctoral Dissertations

Texture, microstructure and formability were studied in Direct Chill Cast (DC) and Strip Cast (SC) aluminum alloys with regard to crystallographic anisotropy, the Portevin-Le Chatelier effect and aging softening behavior. It was found that material properties change greatly with manufacturing processes (DC vs. SC) and chemical composition (3xxx vs. 5 xxx alloys). DC cast hot band materials are usually fully recrystallized and have strong softening textures while SC hot band materials have a rolling structure with strong deformation textures. Softening textures cause 90 earing while deformation textures result in 45 earing after deep drawing. During cold rolling, 90 earing in ...