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Reversible Addition-Fragmentation Chain-Transfer (Raft) Polymerization In Grafting Polymer Chains From Tio2 Nanoparticles, Joseph Lott Dec 2006

Reversible Addition-Fragmentation Chain-Transfer (Raft) Polymerization In Grafting Polymer Chains From Tio2 Nanoparticles, Joseph Lott

Theses

A phosphonate coupling molecule containing a vinyl double bond was synthesized and anchored onto the surface of TiO2 nanoparticles. Diffuse reflectance infra-red (DRIFT) spectroscopy confirmed the presence of the coupling molecule on the particulate surface while thermogravimetric analysis revealed the coupling molecule covered 28% of the surface. Methyl methacrylate was free radically polymerized through the immobilized vinyl bond on the surface in the presence of the reversible additionfragmentation chain-transfer (RAFT) agent 4-cyanopentanoic acid dithiobenzoate using 2,2'-azobisisobutylnitrile (AIBN) as an initiator. DRIFT measurements confirmed the presence of methacrylate groups on the surface. Differential scanning calorimetry detected a weak glass ...


Interprofessional Collaboration Between Criminal Justice And Mental Health Practitioners Regarding Mentally Ill Offenders: Perception Of Collaboration, Christopher Sharp Jan 2006

Interprofessional Collaboration Between Criminal Justice And Mental Health Practitioners Regarding Mentally Ill Offenders: Perception Of Collaboration, Christopher Sharp

Electronic Theses and Dissertations

The federal program of deinstitutionalizing psychiatric facilities has resulted in a well documented, ever-increasing mentally ill population in the nation's prisons and jails. Historically, the criminal justice system has maintained a laissez-faire attitude toward the mentally ill, and only became involved with the mentally ill when a crime had been committed. As such, the President's Mental Health and Criminal Justice Consensus Project was developed to explore ways that the two systems could work together to address the growing problem of the mentally ill offender. However, challenges arise because the criminal justice system has typically been viewed as a ...


Analysis Of Complexity And Coupling Metrics Of Subsystems In Large Scale Software Systems, Harish Ramakrishnan Jan 2006

Analysis Of Complexity And Coupling Metrics Of Subsystems In Large Scale Software Systems, Harish Ramakrishnan

Electronic Theses and Dissertations

Dealing with the complexity of large-scale systems can be a challenge for even the most experienced software architects and developers. Large-scale software systems can contain millions of elements, which interact to achieve the system functionality. Managing and representing the complexity involved in the interaction of these elements is a difficult task. We propose an approach for analyzing the reusability, maintainability and complexity of such a complex large-scale software system. Reducing the dependencies between the subsystems increase the reusability and decrease the efforts needed to maintain the system thus reducing the complexity of the system. Coupling is an attribute that summarizes ...


Preliminary Study On The Impact Of Impingement On The Effectiveness Of Film Cooling In The Presence Of Gas Path Pressure Gradient, Anil Peravali Jan 2006

Preliminary Study On The Impact Of Impingement On The Effectiveness Of Film Cooling In The Presence Of Gas Path Pressure Gradient, Anil Peravali

Electronic Theses and Dissertations

Impingement is the most commonly used method of cooling in the hot stages of gas turbines. This is often combined with film cooling to further increase the cooling performance. The mainstream flow where in the coolant films discharge often has large stream wise pressure variations. All existing studies on coupled film and impingement cooling concentrated on the effect of the film depletion on the impingement heat transfer. This study investigates the impact of impingement on film cooling, where the jets impinging on a flat plate are depleted through arrays of film cooling holes in the presence of pressure gradient in ...


Coupling Of Hydrodynamic And Wave Models For Storm Tide Simulations: A Case Study For Hurricane Floyd (1999), Yuji Funakoshi Jan 2006

Coupling Of Hydrodynamic And Wave Models For Storm Tide Simulations: A Case Study For Hurricane Floyd (1999), Yuji Funakoshi

Electronic Theses and Dissertations

This dissertation presents the development of a two-dimensional St. Johns River model and the coupling of hydrodynamic and wave models for the simulation of storm tides. The hydrodynamic model employed for calculating tides and surges is ADCIRC-2DDI (ADvanced CIRCulation Model for Shelves, Coasts and Estuaries, Two-Dimensional Depth Integrated) developed by Luettich et al. (1992). The finite element based model solves the fully nonlinear shallow water equations in the generalized wave continuity form. Hydrodynamic applications are operated with the following forcings: 1) astronomical tides, 2) inflows from tributaries, 3) meteorological effects (winds and pressure), and 4) waves (wind-induced waves). The wave ...


The Effect Of Arch Height On Tri-Planar Foot Kinemetics During Gait, Jason Mitchell Wilken Jan 2006

The Effect Of Arch Height On Tri-Planar Foot Kinemetics During Gait, Jason Mitchell Wilken

Theses and Dissertations

Deviations from normal foot structure are thought to result in hyper or hypo mobility preventing the foot from providing sufficient stability or mobility at appropriate times during the stance phase of gait. Such deviations in foot structure are often suggested as a risk factor for the development of common foot and ankle injuries. Though foot structure is believed to influence function its effect on foot motion and mechanisms thought to allow stability during the end of stance phase remain poorly understood. The purpose of this study was to determine the extent to which arch height affects foot kinematics during gait ...