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Articles 2551 - 2580 of 3037
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Thermal And Transport Properties Of Layered Silicate Nanomaterials Subjected To Extreme Thermal Cycling, Vilarino Sofia Martinez
Thermal And Transport Properties Of Layered Silicate Nanomaterials Subjected To Extreme Thermal Cycling, Vilarino Sofia Martinez
LSU New Orleans Theses and Dissertations
There is a raising need to design a safe and efficient cryogenic fuel tank for the new generation of reusable launch vehicles. The new tank design focuses on composite materials that can achieve the drastic reduction of empty/non-payload and structural weight. In addition to the materials to be compatible with cryogenic temperatures, interior components of the vehicle may be subjected to significantly elevated temperatures due to heat conduction from the vehicle surfaces during and after atmospheric re-entry. Therefore, there is the need to understand the performance of the composites after experiencing extreme thermal environments. Polymer-layered nanocomposites were studied to determine …
Individuation And The Demeter-Persephone Myth In Charlotte Bronte's Shirley, Kristin Voss
Individuation And The Demeter-Persephone Myth In Charlotte Bronte's Shirley, Kristin Voss
LSU New Orleans Theses and Dissertations
Inconsistencies in character and structural development inform criticism of Charlotte Bronte's Shirley. I argue that the phases of emotional and physical illness that the heroine, Caroline Helstone, undergoes mirror the stages of individuation observed by Jung. I suggest that Bronte uses the Demeter-Kore myth—which Jung saw as an archetypal expression of female transformative experience—as an underlying plot structure for her novel. The division of the novel into three volumes mirrors significant stages of individuation and major plot shifts in the "Hymn." Persephone's abduction and Demeter's wandering correspond with Caroline's sudden depression and with the shadow phase of individuation. Demeter's entrance …
For The Music, Grace Owen
For The Music, Grace Owen
LSU New Orleans Theses and Dissertations
For the Music is a collection of creative nonfiction essays chronicling nine years of my life from when I first discover music to playing in my high school marching band. The theme of the collection is coming of age, with each piece highlighting a particular lesson I struggle to learn based around my experiences with band. Such situations include overcoming shyness, accepting change, and discovering how to work with others.
Indexing And Searching Document Collections Using Lucene, Sridevi Addagada
Indexing And Searching Document Collections Using Lucene, Sridevi Addagada
LSU New Orleans Theses and Dissertations
The amount of information available to a person is growing day by day; hence retrieving the correct information in a timely manner plays a very important role. This thesis talks about indexing document collections and fetching the right information with the help of a database. The primary role of a database is to store the additional information which may be or may not be available in the document collection by itself. The indexing of document collection is performed by Lucene, while the search application is strongly integrated with a database. In this thesis a highly efficient, scalable, customized search tool …
Two Essays On The Predictability Of Asset Prices: "Benchmarking Problems And Long Horizon Abnormal Returns" And, "Low R Square In The Cross Section Of Expected Returns", Benito Sanchez
LSU New Orleans Theses and Dissertations
This dissertation consists of two essays on predictability of asset prices. "Benchmarking problems and long horizon abnormal returns" and, "Low R-square in the cross section of expected returns". Long run abnormal returns following Initial Public Offerings (IPOs), Seasoned Equity Offers (SEO) and other firm level events are well documented in the finance literature. These findings are difficult to reconcile in an efficient markets world. I examine the seriousness of potential benchmarking errors on the measurement of abnormal returns. I find that the simpler, more parsimonious models perform better in practice and finds that excess performance is not predictable regardless of …
Numerical Analysis And Applications Of The Process Of Nonlinear Supratransmission In Mechanical Systems Of Coupled Oscillators With Damping, Diaz Jorge Macias
Numerical Analysis And Applications Of The Process Of Nonlinear Supratransmission In Mechanical Systems Of Coupled Oscillators With Damping, Diaz Jorge Macias
LSU New Orleans Theses and Dissertations
In this paper we develop a finite-difference scheme to approximate radially symmetric solutions and (1 + 1)-dimensional solutions of the initial-value problem with smooth initial conditions Ý2w Ýt2. Þ2w. ƒÀ Ý Ýt..Þ2w + ƒÁ Ýw Ýt + m2w + GŒ(w) = 0, subject to : ( w(Px, 0) = ƒÓ(Px), Px ¸ D, Ýw Ýt (Px, 0) = ƒÕ(Px), Px ¸ D, in an open sphere D around the origin, where the internal and external damping coefficients ƒÀ and ƒÁ, respectively, are constant. The functions ƒÓ and ƒÕ are radially symmetric in D, they are small at infinity, and rƒÓ(r) …
Embedded Multilayer Thin Film Stacks As Polarizing Beam Splitters And Wave Retarders Operating Under Condition Of Frustrated Total Internal Reflection, Perla Siva Reddy
Embedded Multilayer Thin Film Stacks As Polarizing Beam Splitters And Wave Retarders Operating Under Condition Of Frustrated Total Internal Reflection, Perla Siva Reddy
LSU New Orleans Theses and Dissertations
The polarization properties of embedded centro-symmetric and periodic multilayer stacks under conditions of frustrated total internal reflection (FTIR) are considered. The centro-symmetric multilayer stack consists of a high-index center layer sandwiched between two identical low-index films and high-index – low-index bilayers repeated on both sides of the central trilayer maintaining the symmetry of the entire stack. The periodic multilayer consists of periodically repeated low-index – high-index bilayers. Each multilayer stack is embedded in a high-index prism. Embedded centro-symmetric multilayer stacks are designed to function as efficient polarizers or polarizing beam splitters (PBSs) under conditions of FTIR over an extended range …
Highly Ordered Hexagonal Mesoporous Silica As Hosts And Templates For Encapsulation Of Germanium Semiconductor Clusters, Yi Wang
LSU New Orleans Theses and Dissertations
Highly ordered mesoporous MCM-41 silica particles with several morphologies have been synthesized in an alkaline solution using cationic amphiphilic surfactant CTAB as template. The size and the morphology were controlled by varying the reaction temperature and time or by controlling the crystallization process of silica. The characterization results showed that highly ordered mesoporous particles were obtained, which had smooth surface, controllable size and high thermal stability. Germanium semiconductor clusters were encapsulated into hexagonal MCM-41 nanoparticles with a uniform pore size around 500nm via three different synthesis routes (H2 reduction, Vapor phase epitaxy and Na-Naphthalene reduction). Crucial parameters and experimental skills …
Toward The Synthesis Of Cay-1, An Antifungal Steroidal Saponin, Katharine Bowdy
Toward The Synthesis Of Cay-1, An Antifungal Steroidal Saponin, Katharine Bowdy
LSU New Orleans Theses and Dissertations
Invasive fungal infections are prevalent and often deadly in immunocompromised patients. There continues to be a pressing need for the development of novel antifungal compounds since there are currently only 13 compounds licensed for the treatment of invasive fungal infections and antibiotic-resistant strains have been emerging. CAY-1 is an antifungal steroidal saponin which was isolated from the fruit of the cayenne pepper plant in 0.1% yield. In Vitro studies of CAY-1 have shown it to be an effective antifungal agent against sixteen pathogenic fungal strains and it showed no cytotoxicity toward mammalian cells up to 100 ìg/mL. The development of …
A Methodological Exploration Of Mailed Survey Research In A Post Disaster Setting, Michelle Gremillion
A Methodological Exploration Of Mailed Survey Research In A Post Disaster Setting, Michelle Gremillion
LSU New Orleans Theses and Dissertations
This paper analyzes and assesses the success and failures of the implemented methods of two mailed survey research projects conducted in post-Katrina New Orleans. Mailed survey research is an essential part of the recovery process following a major disaster in which people have been displaced. A survey can provide insight into how many residents intend to return to the area as well as resident needs and concerns. Traditional methods alone are inadequate in a post-disaster setting and supplemental measures must be taken. The collected data from a survey in this setting will be unrepresentative of the pre-disaster population. Spatial analysis …
Protecting Mobile Ad Hoc Networks From Spurious Cts Attacks 'Carrier Sensing Based Deferral Mechanism', Sreekanth Pagadala
Protecting Mobile Ad Hoc Networks From Spurious Cts Attacks 'Carrier Sensing Based Deferral Mechanism', Sreekanth Pagadala
LSU New Orleans Theses and Dissertations
The Request-To-Send (RTS)/Clear-To-Send (CTS) mechanism is used to combat Hidden/Exposed node problems in Mobile Ad Hoc Networks (MANETs). The popular implementation of the RTS/CTS mechanism may lead to virtual blocking of the wireless medium. Problem arises if a malicious node randomly sends out a large number of spurious CTS frames in order to falsely block regular nodes in its neighborhood. Such an attack is termed as spurious CTS attack. In this thesis, we investigate the effects of such spurious CTS attacks and propose a solution to mitigate the problem. Our proposed solution, Carrier Sensing based Deferral (CSD) mechanism, asks nodes …
Detecting Routing Misbehavior In Mobile Ad Hoc Network, Kejun Liu
Detecting Routing Misbehavior In Mobile Ad Hoc Network, Kejun Liu
LSU New Orleans Theses and Dissertations
Routing misbehavior in MANETs (Mobile Ad Hoc Networks) is studied in this thesis. In general, routing protocols for MANETs are designed based on the assumption that all par- ticipating nodes are fully cooperative. However, due to the open structure and scarcely available battery-based energy, node misbehaviors may exist. One such routing misbehavior is that some selfish nodes will participate in the route discovery and maintenance processes but refuse to forward data packets. Therefore, we propose the 2ACK scheme that serves as an add-on technique for routing schemes to detect routing misbehavior and to mitigate their adverse effect. The main idea …
Digital Dissection Of Radiographs, Using The Early Cretaceous Bird Confuciusornis And Photoshop Cs2tm, Sirelious White
Digital Dissection Of Radiographs, Using The Early Cretaceous Bird Confuciusornis And Photoshop Cs2tm, Sirelious White
LSU New Orleans Theses and Dissertations
In the past, radiographs (x-ray "shadowgraphs") have been used by paleontologists as ways to identify and capture bone images. Primarily, this was done to examine the skeletal elements without having to remove the surrounding matrix. Radiographs have so much three-dimensional information compressed onto a two-dimension image that it is often impossible to understand the entire skeleton. Obviously, it would be desirable to strip away the readily interpretable skeleton elements and examine those less well understood. An initial set of experiments were performed on a particular section of a radiograph of Confuciusornis sanctus, as a subject, while utilizing Photoshop CS2TM to …
Clustering Of Leukemia Patients Via Gene Expression Data Analysis, Zhiyu Zhao
Clustering Of Leukemia Patients Via Gene Expression Data Analysis, Zhiyu Zhao
LSU New Orleans Theses and Dissertations
This thesis attempts to cluster some leukemia patients described by gene expression data, and discover the most discriminating a few genes that are responsible for the clustering. A combined approach of Principal Direction Divisive Partitioning and bisect K-means algorithms is applied to the clustering of the selected leukemia dataset, and both unsupervised and supervised methods are considered in order to get the optimal results. As shown by the experimental results and the predefined reference, the combination of PDDP and bisect K-means successfully clusters the leukemia patients, and efficiently discovers some significant genes that can serve as the discriminator of the …
Swan-Diving At The Milan Lounge, Jana Mackin
Swan-Diving At The Milan Lounge, Jana Mackin
LSU New Orleans Theses and Dissertations
No abstract provided.
Bloom Filters For Filesystem Forensics, Rachel Bourg
Bloom Filters For Filesystem Forensics, Rachel Bourg
LSU New Orleans Theses and Dissertations
Digital forensics investigations become more time consuming as the amount of data to be investigated grows. Secular growth trends between hard drive and memory capacity just exacerbate the problem. Bloom filters are space-efficient, probabilistic data structures that can represent data sets with quantifiable false positive rates that have the potential to alleviate the problem by reducing space requirements. We provide a framework using Bloom filters to allow fine-grained content identification to detect similarity, instead of equality. We also provide a method to compare filters directly and a statistical means of interpreting the results. We developed a tool--md5bloom--that uses Bloom filters …
Some Novice Methods For Software Protection With Obfuscation, Saikrishna Aravalli
Some Novice Methods For Software Protection With Obfuscation, Saikrishna Aravalli
LSU New Orleans Theses and Dissertations
Previously software is distributed to the users by using devices like CD.S and floppies and in the form of bytes. Due to the high usage of internet and in order to perform the tasks rapidly without wasting time on depending physical devices, software is supplied through internet in the form of source code itself. Since source code is available to the end users there is a possibility of changing the source code by malicious users in order to gain their personnel benefits which automatically leads to malfunctioning of the software. The method proposed in this thesis is based on the …
Angle Resolved Photoemission Study Of Epitaxial Chromium Dioxide Films, Daniel Borst
Angle Resolved Photoemission Study Of Epitaxial Chromium Dioxide Films, Daniel Borst
LSU New Orleans Theses and Dissertations
Chromium dioxide is predicted to be a half-metallic oxide. The electronic properties of the surface region of CrO2 have been studied by performing angle-resolved ultra-violet photoelectron spectroscopy (ARUPS) measurements on epitaxial CrO2 films. The CrO2 thin films were deposited on (100) and (110) – oriented TiO2 substrates by chemical vapor deposition. Previous measurements of the transport properties of devices made from epitaxial CrO2 films have shown very little spin polarization. Possible sources of this low yield are a surface Cr2O3 phase and/or surface contamination. The effects of sputtering the CrO2 films to remove the outer layer of Cr2O3 and any …
Nanocrystalline Transition Metal Ferrites Synthesis, Characterization And Surface Functionalization, Daniela Caruntu
Nanocrystalline Transition Metal Ferrites Synthesis, Characterization And Surface Functionalization, Daniela Caruntu
LSU New Orleans Theses and Dissertations
In this thesis, a new synthetic methodology for the high yield synthesis of spineltype transition metal ferrite nanoparticles has been developed. This approach is based on the complexation of the first-row transition metal cations with diethylene glycol (DEG) followed by the hydrolysis of the resulting chelate iron alkoxide complexes in the presence of an alkaline hydroxide. Due to the passivation of their surfaces with DEG molecules, the as-prepared nanoparticles are stable against agglomeration and can be easily dispersed in polar protic solvents (water, alcohols, etc.). Alternatively, a postsynthesis passivation with carboxylate ions can render the iron oxide nanocrystals highly dispersible …
Becoming And Un-Becoming, Monica Zeringue
Becoming And Un-Becoming, Monica Zeringue
LSU New Orleans Theses and Dissertations
My work is about becoming and un-becoming. I seek to capture a time of transition and possibility. The pre-pubescent girls in my drawings are actually reduced versions of me, going back to a time of innocence and potential, and I multiply them as a means of selfexploration. They split apart, re-combine, and re-configure, trying to make a new whole. They are rendered with detailed accuracy, yet the world around them is empty, like a partially recalled memory. In this thesis, I will explore the use of the self-portrait, twinning, and re-configuration as they relate to identity, memory, and nostalgia. I …
Hate Date, Mike Gemme
Hate Date, Mike Gemme
LSU New Orleans Theses and Dissertations
This is a story about a man who revenge dates women for hire because he thinks women are only out to hurt men. Bryce has something of an allergic reaction anytime he tries to talk to a woman unless it is under a completely false pretense, in which case he is a woman's worst nightmare: A charming, handsome, heartbreaker. His world gets turned upside down when Bryce, despite his affliction, falls in love with a woman and must undergo painful subterfuge techniques just to be around her. Can a relationship built on pain, survive? Will Bryce give up what he …
An Empirical Analysis Of Commercial Bank Profitability In Financially Liberalized Markets, James Nguyen
An Empirical Analysis Of Commercial Bank Profitability In Financially Liberalized Markets, James Nguyen
LSU New Orleans Theses and Dissertations
Chapter 1 of the dissertation investigates the determinants of bank interest margin (NIM) and noninterest income (NII) using a system estimation approach for all commercial banks in a group of 28 financially liberalized countries during the period between 1997 and 2004. The empirical results generally suggest that NIM is directly influenced by operating costs, risk aversion, credit risk, the interaction between interest rate risk and bank risk, bank size, volume of credit, and NII. NIM is negatively related to interest rate risk and capital adequacy. NII is found to correlate positively with NIM, total assets, credit risk, liquidity risk, overhead …
The Garden Of Earthly Delights, Vol Ranger
The Garden Of Earthly Delights, Vol Ranger
LSU New Orleans Theses and Dissertations
The Garden of Earthly Delights is a historical novel set in late 15th century Spain.
Government Ownership, Firm Value And Choice Of Seo Methods--- Evidence From Privatized Chinese Soes, Ohannes Paskelian
Government Ownership, Firm Value And Choice Of Seo Methods--- Evidence From Privatized Chinese Soes, Ohannes Paskelian
LSU New Orleans Theses and Dissertations
In 1991, the Chinese government started the privatization process. A distinguishing feature of this privatization process is the presence of the government as a major shareholder in the privatized SOEs which creates a unique ownership structure that affects the firm performance, and, in turns its choice of equity issuing method. This dissertation investigates the relation between ownership structure, firm value, and the choice of equity offering method of the Chinese semi-privatized former state-owned enterprises. The dissertation consists of two essays. The first essay examines this relationship during the period 1993-1998 when the Chinese stock exchanges were at the infancy stage. …
Development Of An Image Noise Estimation Method And A Sub-Imaging Based Wiener Method, Eric F. Smith
Development Of An Image Noise Estimation Method And A Sub-Imaging Based Wiener Method, Eric F. Smith
LSU New Orleans Theses and Dissertations
This research consists of three parts. The first part is an investigation of several popular image restoration techniques. The techniques are used to restore 2-D image data, f(x, y), that has been blurred by a known point spread function (PSF), b(x, y) and corrupted by an unknown amount of noise, n(x, y). Several sample images are restored using all of the techniques. Of the methods investigated the one which produces the best restoration results was determined to be the Wiener deconvolution method. The determination of the best method is based on the quality of the restored image and the required …
The Native, Jeffrey J. Hartwick
The Native, Jeffrey J. Hartwick
LSU New Orleans Theses and Dissertations
This thesis paper discusses the emerging 24p and High Definition formats, and how they were utilized in the production of a short film. The benefits of these new technologies and how they compare to widely used, contemporary formats are discussed in detail.
"The Goose That Lays The Golden Egg"?: The "Bio-Med" Industries Of New Orleans , Robert Habans
"The Goose That Lays The Golden Egg"?: The "Bio-Med" Industries Of New Orleans , Robert Habans
LSU New Orleans Theses and Dissertations
This thesis addresses New Orleans' "Bio-Med" sector, a broad category that includes biosciences research, health care, biotechnology, and pharmaceutical and medical device manufacturing. Biotechnology, in particular, has emerged as an attractive target for economic development in New Orleans, in Louisiana, and in the nation as a whole. Informed by economic geography and development literature, this research presents a narrative of efforts to foster the Bio-Med industries in New Orleans as a source of economic diversification and employment. Structural economic conditions, as well as a complex and unsettled array of political agendas shaping Bio-Med institutions, underscore a pessimistic view of the …
Hoppin' Down The Bunny Trail: Behind The Banishment Of Walt Disney's Song Of The South In Search Of Uncle Remus, Michael Galiano
Hoppin' Down The Bunny Trail: Behind The Banishment Of Walt Disney's Song Of The South In Search Of Uncle Remus, Michael Galiano
LSU New Orleans Theses and Dissertations
This study is an informative discussion on the history behind Walt Disney's film, Song of the South, based on the Uncle Remus tales originally written by Joel Chandler Harris, which will be addressed in Chapter One. Chapter Two elaborates on the methods within the vehicles of two distinct media versions in two different time periods as the problematic source of perception. Chapter Three relates why this is due to cultural sensitivities pertaining to the film and the suggested media guidelines by minority organizations that have gained power since the Civil Rights movement. Chapter Four discusses the historical data showing the …
Adult Education, James Wyatt
Adult Education, James Wyatt
LSU New Orleans Theses and Dissertations
No abstract provided.
Coping With Stress In Children, Tolonda Age
Coping With Stress In Children, Tolonda Age
LSU New Orleans Theses and Dissertations
Unique stressors can prompt child adjustment difficulties. Coping strategies and emotion regulation that impact the adjustment of children in general and military family children were investigated. Eighty children, 36 with deployed parents, their parents and teachers participated. All experienced stress related to hurricane Katrina. Correlational analyses indicate that children with more hurricane-related losses or moves, use some coping strategies less often; hurricane-related child distress is related to lower maternal support; and parental hurricane-related distress is associated with high levels of child externalizing problems. When dealing with general stressors, some coping strategies were positively associated with child internalizing problems. Analyses indicate …