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2011

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Controlled Growth Of Two-Dimensional Copper Nanoplates In Graphite Gallery, Xiaobei Bin, Jiazang Chen, Hong Cao Jan 2011

Controlled Growth Of Two-Dimensional Copper Nanoplates In Graphite Gallery, Xiaobei Bin, Jiazang Chen, Hong Cao

Turkish Journal of Chemistry

Copper nanoplates embedded in a graphite gallery were obtained by in situ reduction of stage 1, stage 2, and stage 3 CuCl_2-graphite intercalation compound precursors. The characterization results indicated that the morphology of the copper species was that of a 2-dimensional or quasi-2-dimensional nanoplate in the graphite gallery. Interaction between the metallic nanoplates and graphene sheet was also detected. The hexagonal graphene network restricted the crystallization orientation of the copper nanoparticles, and, at the same time, the finite space between the graphene sheets prevented the increase of the thickness. This method would provide a convenient route to synthesize or assemble …

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Assimilable Organic Carbon Generation From Algogenic Organic Matter In Drinking Water, Ji-Hoon Kim, Young-Ju Kim, Tahir Imran Qureshi Jan 2011

Assimilable Organic Carbon Generation From Algogenic Organic Matter In Drinking Water, Ji-Hoon Kim, Young-Ju Kim, Tahir Imran Qureshi

Turkish Journal of Chemistry

A study of assimilable organic carbon (AOC) derived from algogenic organic matter in different drinking water resources was conducted. Seasonal changes in the concentration of AOC at Kamafusa Dam were dependent on the algal cell numbers. Variations in AOC concentrations were found to be more reliant on the AOC-P17 component than the AOC-NOX component. The algal culture experiment showed that extracellular organic matter (EOM) released during the growth of Phormidium tenue in M-11 culture medium led to a significant increase in AOC concentration; however, no significant variations of AOC concentration were observed in CT culture medium containing high amounts of …

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Synthesis And Properties Of New Optically Active And Organosoluble Poly(Ester-Imide)S Containing L-Valine Moieties In The Main Chain By Direct Polycondensation Reaction, Khalil Faghihi, Meisam Shabanian, Mohsen Hajibeygi Jan 2011

Synthesis And Properties Of New Optically Active And Organosoluble Poly(Ester-Imide)S Containing L-Valine Moieties In The Main Chain By Direct Polycondensation Reaction, Khalil Faghihi, Meisam Shabanian, Mohsen Hajibeygi

Turkish Journal of Chemistry

New optically active poly(ester-imide)s (PEIs) containing bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic diimide in the main chain were prepared by the reaction of N,N'-(bicyclo[2,2,2]oct-7- ene-2,3,5,6-tetra carboxylic)-bis-L-valine 4 as a diacid monomer with various aromatic diols 5a-g in a system of tosyl chloride (TsCl), pyridine (Py), and N,N-dimethylformamide (DMF). The reactions with TsCl were significantly promoted by controlling alcoholysis with diols, in the presence of catalytic amounts of DMF, to give a series of optically active poly(ester-imide)s. The resulting new polymers were obtained in good yields and inherent viscosities, ranging between 0.36 and 0.62 dL g^{-1}, and were characterized with FT-IR and ^1H-NMR spectroscopy, including specific …

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Molecular Modeling And Antimycobacterial Studies Of Mannich Bases: 5-Hydroxy-2-Methyl-4h-Pyran-4-Ones, Barkin Berk, Demet Us, Si̇nem Öktem, Zühtü Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol Jan 2011

Molecular Modeling And Antimycobacterial Studies Of Mannich Bases: 5-Hydroxy-2-Methyl-4h-Pyran-4-Ones, Barkin Berk, Demet Us, Si̇nem Öktem, Zühtü Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol

Turkish Journal of Chemistry

The World Health Organization lists tuberculosis among the top 3 leading causes of death from a single infectious agent, and reported cases of multidrug-resistant tuberculosis (MDR-TB) are on the rise. In an attempt to improve MDR-TB drug-directed therapy, we synthesized 11 4-substituted piperazine derivatives of 3-hydroxy-6-methyl-4H-pyran-4-one pharmacophore by reacting 5-hydroxy-2-methyl-4H-pyran-4-one with suitable piperazine derivatives under Mannich reaction conditions. Inhibitory effects of the 11 compounds on Escherichia coli DNA gyrase were evaluated via DNA gyrase supercoiling assay. The minimum inhibitory concentrations (MIC) of the 11 compounds and 41 compounds from our previous studies against Mycobacterium tuberculosis H37RV were assessed, in vitro, …

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Cover And Contents Jan 2011

Cover And Contents

Turkish Journal of Chemistry

No abstract provided.

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Metals In Sediments And Clams From The Indian River Lagoon, Florida: 2006–7 Versus 1992, John H. Trefry, Robert P. Trocine Jan 2011

Metals In Sediments And Clams From The Indian River Lagoon, Florida: 2006–7 Versus 1992, John H. Trefry, Robert P. Trocine

Ocean Engineering and Marine Sciences Faculty Publications

A 1992 survey of metal concentrations in sediments and clams from the Indian River Lagoon, Florida, was repeated during 2006–7. Concentrations of Cr, Ni, Se and V in sediments were at background values during both surveys with no indication of anthropogenic inputs. Average values for Ag, Cd and Zn in sediments, normalized to Al, were unchanged, but contamination was identified at several locations during both surveys. The proportion of sites with elevated values for sediment Cu, Hg and Pb increased between 1992 and 2006–7 from 22 to 65%, 9 to 35%, and 13 to 39%, respectively, with highest values near …

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Distribution Of The Hermit Crabs Clibanarius Vittatus And Pagurus Maclaughlinae In The Northern Indian River Lagoon, Florida: A Reassessment After 30 Years, Christopher J. Kelly, Richard L. Turner Jan 2011

Distribution Of The Hermit Crabs Clibanarius Vittatus And Pagurus Maclaughlinae In The Northern Indian River Lagoon, Florida: A Reassessment After 30 Years, Christopher J. Kelly, Richard L. Turner

Ocean Engineering and Marine Sciences Faculty Publications

The present distribution of two hermit crabs, Clibanarius vittatus and Pagurus maclaughlinae, was assessed for comparison with a study done more than 30 yr ago on decapods of the region. Clibanarius vittatus presently occurs in low or moderate density only at Sebastian Inlet. Retreat of C. vittatus from sites that it formerly occupied is attributed to intolerance of its larvae to low salinities recorded in the lagoon during recent reproductive seasons. Pagurus maclaughlinae remains the most abundant and widespread hermit crab in the lagoon. Its present distribution seems unchanged from the reference study despite prolonged periods, sometimes years, during which …

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Induction Of Tolerance By Oral Administration Of Factor Viii And Treatment Of Hemophila, Oral Alpan, Tirumalai Kamala, Polly Matzinger, William Hugold Velander Jan 2011

Induction Of Tolerance By Oral Administration Of Factor Viii And Treatment Of Hemophila, Oral Alpan, Tirumalai Kamala, Polly Matzinger, William Hugold Velander

Department of Chemical and Biomolecular Engineering: Faculty Publications

Disclosed herein is a simple method for the treatment of antigen-deficiency diseases, by orally administering to a Subject a therapeutically effective amount of the deficient anti gen, wherein the antigen is not present in a liposome. In one embodiment, the method increases hemostasis in a subject having hemophilia A or B, by orally administering to the hemophiliac atherapeutically effective amount of the appropriate clotting factor other than in a liposome, Sufficient to induce oral tolerance and Supply exogenous clotting factor to the subject.

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Soil Moisture: A Central And Unifying Theme In Physical Geography, Rezaul Mahmood Jan 2011

Soil Moisture: A Central And Unifying Theme In Physical Geography, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

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Heat Flux Measurements And Modeling Of Malodorous Compounds Above An Anaerobic Swine Lagoon, Rezaul Mahmood Jan 2011

Heat Flux Measurements And Modeling Of Malodorous Compounds Above An Anaerobic Swine Lagoon, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

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Nearshore Alternative: Latin America's Potential In The Offshore Legal Process Outsourcing Marketplace, Kara D. Romagnino Jan 2011

Nearshore Alternative: Latin America's Potential In The Offshore Legal Process Outsourcing Marketplace, Kara D. Romagnino

University of Miami Inter-American Law Review

No abstract provided.

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Security Of The Sha-3 Candidates Keccak And Blue Midnight Wish: Zero-Sum Property, Liliya Andreicheva Jan 2011

Security Of The Sha-3 Candidates Keccak And Blue Midnight Wish: Zero-Sum Property, Liliya Andreicheva

Theses

The SHA-3 competition for the new cryptographic standard was initiated by National Institute of Standards and Technology (NIST) in 2007. In the following years, the event grew to one of the top areas currently being researched by the CS and cryptographic communities. The first objective of this thesis is to overview, analyse, and critique the SHA-3 competition. The second one is to perform an in-depth study of the security of two candidate hash functions, the finalist Keccak and the second round candidate Blue Midnight Wish. The study shall primarily focus on zero-sum distinguishers. First we attempt to attack reduced versions …

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State Estimation Filtering Algorithms For Vehicle Attitude Determination Using A Dual-Arc Accelerometer Array And 3-Axis Rate Gyroscopes, Aaron Zimmerman Jan 2011

State Estimation Filtering Algorithms For Vehicle Attitude Determination Using A Dual-Arc Accelerometer Array And 3-Axis Rate Gyroscopes, Aaron Zimmerman

Theses

Sensor measurements are corrupted by biases, noise and drift effects and, in order to provide accurate measurements, these errors need to be estimated and, thus, eliminated. The current model used an Extended Kalman filter for the estimation of rate gyroscope measurement errors. This work improves upon that filter by applying a more robust, more accurate and more reliable Unscented Kalman filter. In addition, an algorithm for estimating the accelerometer measurement errors is developed using control theory. Using the attitude estimate from the Unscented Kalman filter, an error signal is formed between that attitude and the attitude estimates from the accelerometer …

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High-Strength Selfconsolidating Concrete Girders Subjected To Elevated Compressive Fiber Stresses, Part 2: Structural Behavior, Jared E. Brewe, John J. Myers Jan 2011

High-Strength Selfconsolidating Concrete Girders Subjected To Elevated Compressive Fiber Stresses, Part 2: Structural Behavior, Jared E. Brewe, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The design of prestressed concrete members is restricted by the requirement that the extreme compressive fiber stress at midspan be less than 60% of the concrete compressive strength at release of prestressing. the purported purpose of this limit is to provide serviceability performance, but it places unnecessary limits on the capability of the materials. for this research program, six prestressed concrete girders were produced with high-strength, self-consolidating concrete and subjected to elevated compressive fiber stress levels ranging from 65% to 84% of initial concrete compressive strength at release of prestressing. Part 1 of this series analyzed time-dependent prestress losses and …

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Ip Address Registration Database: Definitions For Access, Security, And Implementation, Lesa Ouellette Jan 2011

Ip Address Registration Database: Definitions For Access, Security, And Implementation, Lesa Ouellette

Theses

This thesis analyzes the process of IP assignment and internet policing and proves that a national IP address database will allow law enforcement and governmental agencies improvements in real-time, secure access to subscriber identifying information without compromising the security and privacy of internet users. For the last three decades, the process of monitoring access, usage and IP address assignments has fallen on the internet service providers who allow access to the internet through their IP portals. Since they held the door to the internet, there was reasonability in the idea that they should monitor who goes in and out of …

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Reaction Rates Of Ozone And Terpenes Adsorbed To Model Indoor Surfaces, M. Springs, J. R. Wells, Glenn Morrison Jan 2011

Reaction Rates Of Ozone And Terpenes Adsorbed To Model Indoor Surfaces, M. Springs, J. R. Wells, Glenn Morrison

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Reaction rates and reaction probabilities have been quantified on model indoor surfaces for the reaction of ozone with two monoterpenes (Δ3-carene and d-limonene). Molar surface loadings were obtained by performing breakthrough experiments in a plug-flow reactor (PFR) packed with beads of glass, polyvinylchloride or zirconium silicate. Reaction rates and probabilities were determined by equilibrating the PFR with both the terpene and the ozone and measuring the ozone consumption rate. to mimic typical indoor conditions, temperatures of 20, 25, and 30°C were used in both types of experiments along with a relative humidity ranging from 10% to 80%. the molar surface …

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Special Section On Advanced Modeling And Numerical Simulations In Geomechanics, Louis Ge, Dar Hao Chen, Rafiqul Alam Tarefder Jan 2011

Special Section On Advanced Modeling And Numerical Simulations In Geomechanics, Louis Ge, Dar Hao Chen, Rafiqul Alam Tarefder

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

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Establishing Parameters For Problem Difficulty In Permutation-Based Genetic Algorithms, Adam Nogaj Jan 2011

Establishing Parameters For Problem Difficulty In Permutation-Based Genetic Algorithms, Adam Nogaj

Theses

This thesis examines the performance of genetic algorithm (GA) crossover techniques within two problems: n-queens with poison (NQWP) and processor scheduling (PS). Each problem was analyzed at sizes of 32, 64, and 128, referring to number of queens to be placed and number of single-time-unit processes to be scheduled, respectively. The specific crossover techniques studied were cycle crossover, order crossover, partially mapped crossover, merging crossover, and one-point, two-point, and uniform signature representation crossover, in addition to various greedy approaches. In conjunction with tests that vary crossover techniques, experimentation was performed to determine what percentage of problem constraints (poisoned squares for …

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Cloth Simulation Using Hardware Tessellation, David Huynh Jan 2011

Cloth Simulation Using Hardware Tessellation, David Huynh

Theses

Cloth simulation has long been a topic of interest in computer graphics since the early works of Terzopoulos et al. Over the years many techniques have been developed to simulate cloth. Though the general concern has been on the physical accuracy of the simulation. As the simulation gets closer to computational sciences the complexity also increases which at times may come at the cost of real-time performance. With newer and more powerful graphics hardware coming out each year, researchers are starting to shy away from the traditional CPU implementation and turning towards the GPU to offload work. As the parallel …

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Radar-Rainfall Estimation Algorithms Of Hydro-Nexrad, Bong Chul Seo, Witold F. Krajewski, Anton Kruger, Piotr Domaszczynski, James A. Smith, Matthias Steiner Jan 2011

Radar-Rainfall Estimation Algorithms Of Hydro-Nexrad, Bong Chul Seo, Witold F. Krajewski, Anton Kruger, Piotr Domaszczynski, James A. Smith, Matthias Steiner

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Hydro-NEXRAD is a prototype software system that provides hydrology and water resource communities with ready access to the vast data archives of the U.S. weather radar network known as NEXRAD (Next Generation Weather Radar). This paper describes radar-rainfall estimation algorithms and their modular components used in the Hydro-NEXRAD system to generate rainfall products to be delivered to users. A variety of customized modules implemented in Hydro-NEXRAD perform radar-reflectivity data processing, produce radar-rainfall maps with user-requested space and time resolution, and combine multiple radar data for basins covered by multiple radars. System users can select rainfall estimation algorithms that range from …

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Mitigating The Risk Of Social Engineering Attacks, Matthew Spinapolice Jan 2011

Mitigating The Risk Of Social Engineering Attacks, Matthew Spinapolice

Theses

The topic of social engineering is only covered briefly in today's system administration and security coursework. This lack of coverage leaves many Administrators ill-equipped to administer the users of a computer network. In addition to their technical training, administrators need to comprehend the potential severity and likelihood of social engineering attacks. Teaching administrators only to minimize the risk of hacking attempts or computer virus infections does not fully equip them with the knowledge needed to defend their networks. To ensure the safety of their network from social engineering attacks, administrators need to be able to answer three primary questions: * …

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Localization Of Free-Spanning Damage Using Mode Shape Curvature, Guirong Yan, Xuelin Peng, Hong Hao Jan 2011

Localization Of Free-Spanning Damage Using Mode Shape Curvature, Guirong Yan, Xuelin Peng, Hong Hao

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Study Proposes a Damage Indicator based on Mode Shape Curvature to Localize Free-Spanning Damage of Submarine Pipeline Systems. the Feasibility of Curvatures of Low-Frequency Mode Shapes for Localizing Free-Spanning Damage of Pipeline Systems is Discussed, and Damage Indicators based on Mode Shape Curvatures Are Proposed. the Efficacy of the Proposed Damage Indicators is Demonstrated by Numerical Simulations of Dynamic Responses of a Submarine Pipeline under Ambient Conditions with Considering the Real Subsea Environment. the Proposed Approach is Simple, Which Does Not Require Baseline Data, and Thus is Promising in Practical Applications. © 2011 Published under Licence by IOP Publishing …

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Moving Micronutrients From The Soil To The Seeds: Genes And Physiological Processes From A Biofortification Perspective, Brian M. Waters, Renuka P. Sankaran Jan 2011

Moving Micronutrients From The Soil To The Seeds: Genes And Physiological Processes From A Biofortification Perspective, Brian M. Waters, Renuka P. Sankaran

Department of Agronomy and Horticulture: Faculty Publications

The micronutrients iron (Fe), zinc (Zn), and copper (Cu) are essential for plants and the humans and animals that consume plants. Increasing the micronutrient density of staple crops, or biofortification, will greatly improve human nutrition on a global scale. This review discusses the processes and genes needed to translocate micronutrients through the plant to the developing seeds, and potential strategies for developing biofortified crops.

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Robustness Analysis Of Slow Learning In Iterative Learning Control Systems, John R. Singler, Douglas A. Bristow Jan 2011

Robustness Analysis Of Slow Learning In Iterative Learning Control Systems, John R. Singler, Douglas A. Bristow

Mechanical and Aerospace Engineering Faculty Research & Creative Works

This paper examines robust stability and robust transient growth in Iterative Learning Control (ILC). It is well known that small perturbations in system dynamics can result in very large transient growth of some ILC systems. Even larger perturbations can result in instability. One ad hoc technique commonly employed to improve robustness is to slow the learning rate by reducing the learning filter gain or lowpass filtering the error signal. Here, pseudospectra analysis is used to analyze the robustness of ILC algorithms with slow learning. It is found that robustness bounds can be increased and transient growth decreased with decreasing learning …

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Scientific Visualization Using Pixar's Renderman, John Lukasiewicz Jan 2011

Scientific Visualization Using Pixar's Renderman, John Lukasiewicz

Theses

This thesis will attempt to visualize astrophysical data that is proprocessed and formatted by the Spiegel software using Pixar's RenderMan. The output will consist of a large set of points and data associated with each point. The goal is to create images that are both informative and aesthetically pleasing to the viewer. This has been done many times before with software rendering and APIs such as OpenGL or JOGL. This thesis will use Pixar's Photorealistic RenderMan, or PRMan for short, as a renderer. PRMan is an industry proven standard renderer that is based on the RenderMan Interface Specification which has …

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Botnet Lab Creation With Open Source Tools And Usefulness Of Such A Tool For Researchers, Dimitris Vergos Jan 2011

Botnet Lab Creation With Open Source Tools And Usefulness Of Such A Tool For Researchers, Dimitris Vergos

Theses

Botnets are large scale networks, which can span across the internet and comprise of computers, which have been infected by malicious software and are centrally controlled from a remote location. Botnets pose a great security risk and their size has been rising drastically over the past few years. The use of botnets by the underground community as a medium for online crime, bundled with their use for profit has shined the spotlight on them. Numerous researchers have proposed and designed infrastructures and frameworks that identify newly formed botnets and their traffic patterns. In this research, the design of a unified …

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Cellular Network Monitoring System Based On Subscriber Units, Victor Silva Jan 2011

Cellular Network Monitoring System Based On Subscriber Units, Victor Silva

Theses

The normal approach to assess signal quality parameters in a wireless network requires performing what is known as a drive test. A drive test consists on driving a vehicle equipped with a wireless measurement toll box around the area of interest, in order to take measures of several wireless signal parameters. Drive testing is a time consuming activity often affected by external factors such as vehicular traffic congestion and others. The slowness of the process makes this technique impractical when the goal is to measure the impact caused by minor changes on the network; when you need something like a …

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George Enescu's Concertstück For Viola And Piano: A Theoretical Analysis Within The Composer's Musical Legacy, Simina Alexandra Renea Jan 2011

George Enescu's Concertstück For Viola And Piano: A Theoretical Analysis Within The Composer's Musical Legacy, Simina Alexandra Renea

LSU Doctoral Dissertations

The purpose of this monograph was to understand George Enescu’s Concertstück for viola and piano from the broad perspective of Enescu’s multiple facets of musicianship: composer, performer (violin, piano, conducting), and teacher. Moreover, the Romanian background (including musical education and direct knowledge of Romanian folklore) of this monograph’s author facilitated in a higher degree the achievement of the given purpose. The document is divided into three chapters. Chapter 1 describes Enescu as composer, performer, and teacher. The first part of Chapter 1 offers information about the most important influences on his composition style (including his teachers), and his main works …

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The Attitudes Of African American Students Towards The Study Of Foreign Languages And Cultures, Katrina Watterson Jan 2011

The Attitudes Of African American Students Towards The Study Of Foreign Languages And Cultures, Katrina Watterson

LSU Doctoral Dissertations

This dissertation explores the reasons that African American students participate at lower levels in foreign language programs in terms of taking courses and majoring and minoring in foreign languages. The primary foreign language that it explores is Spanish, and its findings suggest that the introduction of the language devoid of the influence of Afro-diasporic linkages to Spanish culture leads to the topic being taught in abstraction, therefore causing a lack of interest among African American students. As this study shows, a teacher's thinking about cultural and racial difference is often intimately woven into their disciplinary training, and as a result, …

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Damage Detection And Identification In Fiber Reinforced Plastic Structural Members And Field Bridges Using Acoustic Emission Technique, Archana Nair Jan 2011

Damage Detection And Identification In Fiber Reinforced Plastic Structural Members And Field Bridges Using Acoustic Emission Technique, Archana Nair

LSU Doctoral Dissertations

With the increased use of fiber reinforced polymer (FRP) based structural systems for rehabilitation of existing and construction of new bridges there is a requirement for identification of critical components of these structural systems and the determination of critical damage thresholds in them. Of the many available non-destructive techniques (NDT), acoustic emission (AE) monitoring had been identified as one of the most popular techniques applicable for damage discrimination in composites. The current study aimed at using patterns in AE data for the identification of damage modes exhibited by composite structural systems. The extensive experimental program involved testing of two structural …

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