Browsing University of Texas at Arlington by Title
Now showing items 1202-1221 of 1826
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Objective Image And Video Quality Assessment With Applications
(Electrical Engineering, 2009-09-16)Objective Image and Video Quality Assessment (IQA/VQA) aims to automatically measure the quality degradation perceived by the human eyes. It is of fundamental importance to address a wide variety of problems in image and ... -
Observer Synthesis For Linear/nonlinear Dynamical Systems Subject To Measurement Delays
(Electrical Engineering, 2007-08-23)In this research, problems associated with communication delays on the stability of formation of a group of unmanned vehicles is examined and solution to this problem is proposed. Ideally, it is required that the information ... -
Obsessive Compulsive Disorder And Support Groups
(Communication, 2009-09-16)The purpose of this qualitative study used several methodologies in order to discover why individuals with OCD choose to participate or not participate in a face-to-face and/or online support group. The primary researcher ... -
Oligomeric And Polymeric Bibenzimidazole Based Metal Complexes And Crosslinked Polyethylenimine Based Flame Retardants
(Chemistry & Biochemistry, 2007-08-23)In Part I, a simple and mild condensation route for the synthesis of novel bibenzimidazole oligomers and polymers is described using methyl 2,2,2-trichloroacetimidate as a key starting material. The dimer, trimer, tetramer, ... -
On A Class Of ABCS
(Physics, 2007-08-23)The local density approximation to density functional theory (LDA-DFT) has been used to study the different possible relaxations and reconstructions of In-rich InSb (100) surface. Various electronic and geometric structure ... -
On Progenitively Koszul Commutative Rings
(Mathematics, 2008-04-22)This paper introduces and identifies classes of progenitively Koszul rings. A progenitively Koszul ring is a commutative ring that admits a Koszul complex A=K(R) that is formal, and such that the homology algebra H(A) ... -
On Reducing Call Drop Outs By Improving Bit Error Rate Performance In A GSM Mobile Communications System
(Electrical Engineering, 2008-08-08)Call Drop Out is one of the most annoying problems in Mobile Communications. It is one of the most important Quality of Service (QoS) indicators for a mobile carrier. Over the years, many strategies have been proposed to ... -
On The Behavior Of The 5f Electrons
(Physics, 2007-08-23)Considerable theoretical efforts have been devoted in recent years to studying the electronic and geometric structures and related properties of surfaces to high accuracy. One of the many motivations for this burgeoning ... -
On The Design Of A Biodegradable Poc-ha Polymeric Cardiovascular Stent
(Mechanical Engineering, 2009-09-16)The current state of the art in coronary stent technology is mainly populated by metallic stents usually coated with certain drugs to increase biocompatibility, even though experimental biodegradable stents have appeared ... -
On The Existence And Stability Of Carbon -based Silicon Fullerenes -a Density Functional Theoretic Study
(Physics, 2007-08-23)The electronic and geometric properties of silicon-carbon fullerene-like nanostructures with two, four, six, twenty and twenty four carbon atoms on the surface of the Si60 cages by substitution, as well as inside the cage ... -
On The Existence Of Totally Reflexive Modules
(Mathematics, 2011-07-14)In this manuscript, we investigate the existence of non-free totally reflexive modules over two classes of commutative local (Noetherian) rings.First, we demonstrate existence over a class of local rings which are defined ... -
On The Image Of The Totalling Functor
(Mathematics, 2007-08-23)Let A denote a DG algebra and k a field. The totalling functor, from the category of chain complexes over the graded A-modules to the catagory of DG modules over A, can be extended to one between their derived categories. ... -
On The Near Field Mean Flow Structure Of Transverse Jets Issuing Into A Supersonic Freestream
(Aerospace Engineering, 2008-04-22)The near field mean flow structure of transverse jets issuing from a surface into supersonic crossflow is examined using numerical methods and separation topology. The Navier-Stokes solver Falcon, developed at Lockheed ... -
On The Sensitivity Of Ocean Circulation To Arctic Freshwater Pulses During The Paleocene/Eocene Thermal Maximum
(Environmental & Earth Science, 2010-03-03)The Paleocene/Eocene Thermal Maximum (PETM) corresponds to a period characterized by extreme global warming caused by a massive carbon input into the ocean and atmosphere. Approximately 55 Ma in the early Cenozoic, evidence ... -
On The Study Of Multi-channel EEG: Lossless Compression, Signal Modeling And Classification
(Electrical Engineering, 2008-04-22)Recently, electroencephalogram (EEG) has become necessary for diagnosis, telemedicine, and brain computer interface (BCI). This thesis investigates three signal processing tools which can explore multi-channel structures ... -
On Their Own?: Mexican Immigrants' Assistance by government, NGOs, and self-help at times of natural disaster in Wimauma, Florida
(Humanities, 2009-09-16)During the 2204 hurricane season, four successive storms struck Central Florida causing catastrophic damage to crops and displacing close to 195,00 migrant and seasonal workers. Based on ethnographic fieldwork, this thesis ... -
On-chip Liquid-liquid Extraction And Separation Using Digital Microfluidics
(Mechanical Engineering, 2010-03-03)In this thesis, on-chip liquid-liquid microextraction and separation using electrowetting on dielectric (EWOD) digital microfluidics was demonstrated by considering room temperature ionic liquid (RTIL) and DI water as two ... -
Online Adaptive Optimal Control For Continuous-time Systems
(Electrical Engineering, 2010-03-03)This work makes two major contributions. * First, in the field of computational intelligence, it develops reinforcement learning controllers (i.e. approximate dynamic programming algorithms) for continuous-time systems, ... -
Online Learning Algorithms For Differential Dynamic Games And Optimal Control
(Electrical Engineering, 2011-07-14)Optimal control deals with the problem of finding a control law for a given system that a certain optimality criterion is achieved. It can be derived using Pontryagin's maximum principle (a necessary condition), or by ... -
Open Main Detection In Underground Distribution Network Using Statistical Approaches
(Electrical Engineering, 2009-09-16)The continuous increase for people dependency on electrical energy to run most of their industrial, commercial and residential activities makes it necessary to regularly improve the distribution systems. This Improvement ...