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First Order Sigma-Delta Modulator Of An Oversampling Adc Design In Cmos Using Floating Gate Mosfets, Syam Prasad Sbs Kommana Jan 2004

First Order Sigma-Delta Modulator Of An Oversampling Adc Design In Cmos Using Floating Gate Mosfets, Syam Prasad Sbs Kommana

LSU Master's Theses

We report a new architecture for a sigma-delta oversampling analog-to-digital converter (ADC) in which the first order modulator is realized using the floating gate MOSFETs at the input stage of an integrator and the comparator. The first order modulator is designed using an 8 MHz sampling clock frequency and implemented in a standard 1.5µm n-well CMOS process. The decimator is an off-chip sinc-filter and is programmed using the VERILOG and tested with Altera Flex EPF10K70RC240 FPGA board. The ADC gives an 8-bit resolution with a 65 kHz bandwidth.

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Hydroclimatic And Circulation Anomalies Associated With The North Atlantic Subtropical High, Brian Taylor Allen Jan 2004

Hydroclimatic And Circulation Anomalies Associated With The North Atlantic Subtropical High, Brian Taylor Allen

LSU Master's Theses

Hydroclimatic and circulation variability in regions around the Atlantic sector are linked to the intensity, location, and areal extent of the North Atlantic subtropical high (STH). Few analyses focus directly on the influence of the STH on climatic variability. Using sea level pressure (SLP) data from the NCEP/NCAR Reanalysis dataset, a time series of the STH was produced using principal components analysis (PCA) to describe the temporal variability of the STH from January 1948 to December 2001. A simple area average of SLP across the PCA domain is shown to describe the same phenomena (the dominant mode of the STH …

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Seismic Stratigraphic Investigation Of The Ukpokiti Field Channel Complex, Oml 108, Offshore Nigeria, Northwestern Niger Delta, Toby Latwan Stewart Jan 2004

Seismic Stratigraphic Investigation Of The Ukpokiti Field Channel Complex, Oml 108, Offshore Nigeria, Northwestern Niger Delta, Toby Latwan Stewart

LSU Master's Theses

Detailed seismic stratigraphic analyses and mapping show that a well defined Ukpokiti Field Channel complex (late Miocene) found on the up-thrown side of a major back-to-back fault system in the West Niger delta inner-continental shelf probably formed during a single eustatic fall. The channel (>500 msec, 10 km wide) shows several tributaries entering the trunk axis from what was probably a surface of subaerial exposure. Slumping is prominent on the north flank of the trunk channel. No channel unconformity is evident in the down-thrown block. This investigation seeks to resolve the lack of down-dip correlative seismic expression across the …

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Deterrence Factors For Copyright Infringement Online, Nico Nergadze Jan 2004

Deterrence Factors For Copyright Infringement Online, Nico Nergadze

LSU Master's Theses

The purpose of this study was to investigate deterrence factors for online file-sharing by analyzing different conditions that affect compliance with the law through survey of the students in a large university in Southern U.S. The findings show that certainty of punishment, stigma of the label, knowledge of the laws and consensus with the rule negatively correlated with both actual and likely future file-sharing activities of the users

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Symphony No.1 - A Symphony Of The Christ, James White Hellums, Iii Jan 2004

Symphony No.1 - A Symphony Of The Christ, James White Hellums, Iii

LSU Master's Theses

Symphony No. 1- A Symphony of the Christ is, in a general sense, a programmatic orchestral work recounting the life of Christ. This is not to say that every musical device or motive represents something explicitly, rather that the music of each movement suggests the overall mood and feeling of its subject matter. The first movement, subtitled “Christ our God to earth descendeth,” corresponds to Christ’s birth. The second movement, subtitled “Dwelt among men, our example is He,” concerns His life and ministry. The third movement, representing His suffering and crucifixion, is subtitled “See, from His head, His hands, His …

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An Application Of Geographic Information Systems (Gis): The Utility Of Victim Activity Spaces In The Geographic Profiling Of Serial Killers, Charles Casey Shamblin Jan 2004

An Application Of Geographic Information Systems (Gis): The Utility Of Victim Activity Spaces In The Geographic Profiling Of Serial Killers, Charles Casey Shamblin

LSU Master's Theses

Today, computer technology is producing new methods of investigation into the complex nature of serial killers; among these are geographic profiles. Yet, due to the lack of proven success, budgetary constraints, and the inherent multifaceted nature of serial murder, these geographic profiles have not been completely embraced by the law enforcement community. Because of this, the academic and law enforcement communities continue to refine and develop new methods to solve serial killer cases. This thesis investigates the possibility of identifying the location of the interaction site of a serial killer and his victims using a commercial geographic information system (GIS) …

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Species Diversity And Biogeography Of Ants (Hymenoptera: Formicidae) In Louisiana With Notes On Their Ecology, Shawn T. Dash Jan 2004

Species Diversity And Biogeography Of Ants (Hymenoptera: Formicidae) In Louisiana With Notes On Their Ecology, Shawn T. Dash

LSU Master's Theses

Over three decades have passed since the completion of Moser and Blum's (1960) treatment of the ants of Louisiana. This research represents a significant contribution to and update of their work. I report the first-ever comprehensive assessment of the Louisiana Formicid fauna. More than 100 species from 38 genera and eight subfamilies are covered. This faunistic survey gives valuable data of biodiversity and macro/microhabitat selection of ant species. Included are keys to all subfamilies, genera, and species with illustrations photographs, and a regional map for each species.

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Trajectory And Window Width Predictions For A Cased Hole Sidetrack Using A Whipstock, Harshad Prakash Patil Jan 2004

Trajectory And Window Width Predictions For A Cased Hole Sidetrack Using A Whipstock, Harshad Prakash Patil

LSU Master's Theses

The Trackmaster system manufactured by Smith Services consists of a multi-ramped whipstock and a trimill assembly used to perform a sidetrack from a cased well. Smith Services has observed evidence that the trimill assembly may prematurely leave the face of the whipstock and build excess inclination and dogleg severity or may fall into the original well immediately after leaving the end of the whipstock ramp thus creating a need to predict the borehole trajectory for sidetracking operations. The goal of this project was to predict the borehole trajectory and the window profile cut in the casing by the sidetracking equipment …

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Musical Play Across Ethnic Boundaries In Western Jamaica, Ronald Eric Dickerson Jan 2004

Musical Play Across Ethnic Boundaries In Western Jamaica, Ronald Eric Dickerson

LSU Master's Theses

An ethnography of music, ritual, and festival in western Jamaica, this thesis reports on fieldwork performed in St. Elizabeth and St. James Parishes between June 2002 and January 2003. Featured field sites include rural dancehall events, Kumina performances, Accompong Town's Maroon Heritage Festival, and a Rastafarian music and nutrition festival called "The Supper of Rastafari." Building an account of these and other sites of cultural performance, this study focuses on social connections between groups of participants, traced through poetic, historical, and personal relationships among performers, especially across boundaries of ethnic, stylistic, or religious difference within Jamaica's national cultural identity.

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Insect Pest Management Approaches Among Currently Recommended Sugarcane Varieties In Louisiana, Frederick R. Posey Jan 2004

Insect Pest Management Approaches Among Currently Recommended Sugarcane Varieties In Louisiana, Frederick R. Posey

LSU Master's Theses

The sugarcane borer, Diatraea saccharalis (F.), (Lepidoptera: Crambidae), is responsible for more than 90% of the total insect damage to sugarcane in Louisiana. The decision to apply insecticides is complex and influenced by numerous variables. Included among these variables are insect infestation levels, varieties, weather conditions, production input levels, and environmental concerns. Predicting damage that may result from infestations occurring at a particular time of the crop production season is also important. The objective of this research was to evaluate the impact of these variables on sugarcane borer populations and subsequent yield loss. Results from a two-year survey indicated a …

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An Investigation Of The 150-Hour Requirement In Developing Personal Competencies In Accounting Education, Laura Davis Delaune Jan 2004

An Investigation Of The 150-Hour Requirement In Developing Personal Competencies In Accounting Education, Laura Davis Delaune

LSU Doctoral Dissertations

This study investigated if accounting graduates from Louisiana State University, a public institution, perceived that their accounting curriculum enhanced the development of their personal competencies of professional demeanor, problem solving/decision making, interaction, leadership, and communication. A survey mailed to accounting graduates who graduated from Fall 1999 to Spring 2002 was used to gather the data for the study. Responses from graduates with different curricular paths were compared to determine if significant differences existed in their perceptions of the development of their personal competencies. Results revealed that no significant difference exists in the perception of the development of personal competencies among …

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Effects Of Corrosion Prevention Compounds And Overload Induced Residual Stress Field On Fatigue Life In Aluminum Alloy, Jin Hee Park Jan 2004

Effects Of Corrosion Prevention Compounds And Overload Induced Residual Stress Field On Fatigue Life In Aluminum Alloy, Jin Hee Park

LSU Master's Theses

Corrosion-Prevention Compounds (CPC) are commonly used to prevent corrosion in the aircraft industry. The presence of corrosive environment (salt-fog, water-fog, even dry air) on aircraft structures has detrimental effects on the integrity of aircraft components which reduces the fatigue life and may accelerate the crack growth rate in the structures. This thesis work is aimed at identifying the effect of CPC and corrosion fatigue on the fatigue life of test specimen. This study describes the results of an experimental study on aluminum alloy 2024-T3 with center-crack specimen to investigate the effect of CPC on fatigue life. Generally, these compounds contain …

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Evaluation Of New Methods For Processing Drilling Data To Determine The Cause Of Changes In Bit Performance, Jaime Solano Jan 2004

Evaluation Of New Methods For Processing Drilling Data To Determine The Cause Of Changes In Bit Performance, Jaime Solano

LSU Master's Theses

Drilling operations represent the major cost in finding and developing new petroleum reserves. Poor drilling performance when drilling deep shale and strong rocks, as evidenced by slow rate of penetration (ROP), has a significant detrimental impact on drilling costs. Also, it has been concluded that bit balling is the main cause of low ROP when drilling deep, clay-rich shale with water-based mud. In addition, it is estimated that a potential saving in drilling cost of hundreds of millions of dollars a year can be obtained if bit balling is mitigated and ROP is improved. Several methods have been developed in …

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An Evaluation Of Multiple Branch Predictor And Trace Cache Advanced Fetch Unit Designs For Dynamically Scheduled Superscalar Processors, Slade S. Maurer Jan 2004

An Evaluation Of Multiple Branch Predictor And Trace Cache Advanced Fetch Unit Designs For Dynamically Scheduled Superscalar Processors, Slade S. Maurer

LSU Master's Theses

Semiconductor feature size continues to decrease permitting superscalar microprocessors to continue to increase the number of functional units available for execution. As the instruction issue width increases beyond the five instruction average basic block size of integer programs, more than one basic block must be issued per cycle to continue to increase instructions per cycle (IPC) performance. Researchers have created methods of fetching instructions beyond the first taken branch to overcome the bottleneck created by the limitations of conventional single branch predictors. We compare the performance of the multiple branch prediction (MBP) and trace cache (TC) fetch unit optimization methods. …

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Development Of A Neural Network Approach For The Assessment Of The Performance Of Traffic Sign Retroreflectivity, Nagajyothi Swargam Jan 2004

Development Of A Neural Network Approach For The Assessment Of The Performance Of Traffic Sign Retroreflectivity, Nagajyothi Swargam

LSU Master's Theses

The goal of the research was to develop a new predictive tool for assessing the performance of traffic sign retroreflectivity and to compare the developed tool with the existing linear regression models. Retroreflectivity decreases as sign sheeting ages. Currently Louisiana Department of Transportation and Development (LADOTD) replace signs with low reflectivity based on driver complaints. This practice might have resulted in premature sign replacement (removal of signs with several years of in-service life still remaining) or in non-replacement of signs that are not in compliance with LADOTD minimum reflectivity standards. In this study, both neural network models and regression models …

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Black Women Writing Black Mother Figures: Reading Black Motherhood In Their Eyes Were Watching God And Meridian, Alexis Durell Powe Jan 2004

Black Women Writing Black Mother Figures: Reading Black Motherhood In Their Eyes Were Watching God And Meridian, Alexis Durell Powe

LSU Master's Theses

This research explores connections between Zora Neale Hurston's Their Eyes Were Watching God and Alice Walker's Meridian, two important novels in the African American canon rarely studied in conjunction. I examine the novels' portrayals of Black mothers, comparing and contrasting Nanny Crawford and Mrs. Hill as central mother figures. I also examine Leafy Crawford, Meridian Hill, and other minor Black mother/women characters. Though Hurston's and Walker's presentations of Black mothers differ, both authors work toward dismantling traditional stereotypes of Black motherhood, particularly the Black superwoman stereotype, and, thereby, ultimately redefining Black womanhood. In defending this claim, I explore Hurston's …

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The Importance Of Fluent Component Skills In Mathematical Comprehension, Chisato Komatsu Jan 2004

The Importance Of Fluent Component Skills In Mathematical Comprehension, Chisato Komatsu

LSU Master's Theses

The primary question to be addressed by the present study was whether fluency on component skills is important in the development of overall competency in mathematics. Reading fluency has served as an excellent predictor of one’s reading comprehension. However, few studies have investigated whether the fluency on component skills is essential in the development of overall competency in mathematics. In fact, there has been a push for instructional strategies to deemphasize the importance component skills. In the current study, 140 students in second- through fourth- grade classrooms from general education participated. Each student took three curriculum-based measurement probes (a single-skill …

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Racial Attitudes And Policy Preferences, Jennifer Kirsten Pike Jan 2004

Racial Attitudes And Policy Preferences, Jennifer Kirsten Pike

LSU Master's Theses

This thesis analyzes statistical models of the impact of racial attitudes on race-neutral policy preferences in the 2002 Louisiana population. Previous research has identified racial attitudes as a determinant of welfare spending preferences in the national white population. This paper uses ordered logit modeling to test for the impact of racial attitudes on welfare and public education spending preferences within a state population, with separate analyses for black and white respondents. Moreover, this analysis provides a parallel model for highway spending as a control for the theoretical race-coded nature of welfare and public education. The analysis demonstrates similar racialization of …

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A Novel Mechanical Seal Design With Superior Thermal Characteristics, Anoop Kumar Somanchi Jan 2004

A Novel Mechanical Seal Design With Superior Thermal Characteristics, Anoop Kumar Somanchi

LSU Master's Theses

A mechanical face seal is an important component of variety of pumps used in chemical, petrochemical and process industry. The primary function of a mechanical seal is to prevent leakage of the process fluid from the pump housing and shaft to the environment. The factors that affect the performance of a mechanical seal to leak are friction, wear and its thermal characteristics. Improving upon the thermal characteristics of a mating ring in a mechanical seal would enhance its performance. Implanting a heat exchanger in the mating ring hold great promise for improving the performance of mechanical seals from the viewpoint …

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In Vitro Evaluation Of The Securos Cranial Cruciate Ligament Repair System And Fluorocarbon Leader Line For Use As Lateral Fabella-Tibial Sutures, Max Nielsen Banwell Jan 2004

In Vitro Evaluation Of The Securos Cranial Cruciate Ligament Repair System And Fluorocarbon Leader Line For Use As Lateral Fabella-Tibial Sutures, Max Nielsen Banwell

LSU Master's Theses

Cranial cruciate ligament (CCL) rupture is a common injury in the dog and major cause of degenerative joint disease. The pathophysiology of CCL rupture in the dog is well described. Osteoarthritis secondary to CCL rupture causes severe pain and lameness. There are many surgical techniques accepted for dogs with CCL rupture. A commonly performed technique is an extracapsular repair with a lateral fabella-tibial suture (LFS) using large diameter nylon leader line (NLL). Mechanical demands placed upon the LFS are high requiring the material used be able to withstand a high amount of force, undergo minimal elongation, and have a high …

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Heidegger's Relationship To Kantian And Post-Kantian Thought, Ryan S. Hellmers Jan 2004

Heidegger's Relationship To Kantian And Post-Kantian Thought, Ryan S. Hellmers

LSU Master's Theses

I provide a close analysis of truth and freedom in Heidegger’s work during the passage from Being and Time (Sein und Zeit) in 1927 to the Contributions to Philosophy (Beiträge zur Philosophie) in 1938. This analysis demonstrates the passage from a Kantian style transcendental analysis of the self to an Idealist inspired study of being-historical thinking. Throughout this shift in thinking, the work of Friedrich Wilhelm Joseph von Schelling is shown to play an increasingly decisive role in Heidegger’s thought, finally leading him to an understanding of the self in terms of freedom, community, culture, and history that carries important …

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Development Of Resilient Modulus Prediction Models For Base And Subgrade Pavement Layers From In Situ Devices Test Results, Ravindra Gudishala Jan 2004

Development Of Resilient Modulus Prediction Models For Base And Subgrade Pavement Layers From In Situ Devices Test Results, Ravindra Gudishala

LSU Master's Theses

Currently, the design of flexible pavements is generally conducted based on static properties such as California Bearing Ratio and soil support value. These properties do not represent the actual response of the pavement layers under traffic loadings. Recognizing this deficiency, the current and the 2002 mechanistic –empirical guide for design of pavement structures recommended the use of resilient modulus for characterizing the base and subgrade soil and for the design of flexible pavements. The objective of this study was to develop models to estimate the resilient modulus of base and subgrade soils from in situ test devices. Two types of …

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A Performance Genealogy Of "Etchings Of Debutantes", Melanie A. Kitchens Jan 2004

A Performance Genealogy Of "Etchings Of Debutantes", Melanie A. Kitchens

LSU Master's Theses

In this thesis history performs that which Della Pollock terms “historicity” in her “Introduction” to Exceptional Spaces: Essays in Performance and History. History as historicity is no longer an evolutionary master narrative that dictates essential Truths. Rather, it is a site for performance where unfinalized and partial fragments of the past cluster into stories that mingle fact and fiction. Historicity defines a space or an event where history is a doing. The performer of this history embraces agency, which she uses to place herself within history rather than dominate or be dominated by it. Observing history as historicity, Joseph Roaches …

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Feeding Ecology And Morphometric Analysis Of Paddlefish, Polyodon Spathula, In The Mermentau River, Louisiana, Nicole Adele Smith Jan 2004

Feeding Ecology And Morphometric Analysis Of Paddlefish, Polyodon Spathula, In The Mermentau River, Louisiana, Nicole Adele Smith

LSU Master's Theses

Little is known about the morphometrics and the feeding ecology of paddlefish in Louisiana. I examined the morphometrics and feeding ecology of paddlefish from the Mermentau River, Louisiana from March 2002 to February 2003. Paddlefish were examined morphometrically by taking measurements of eye-fork length (EFL), body cavity length (BCL), girth (G), vent girth (VG), mouth vertical (MTB), mouth horizontal (MSS), and mouth gullet bottom (MGB) to determine which parameters would give a better estimate of weight (W). Regression analysis resulted in a morphometric model of the form: logW = 10.10 + 1.52 (logEFL) + 1.21 (logG) + 0.24 (logVG) (r2 …

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Impact Of Static Flexion Duration On The Development Of A Neuromuscular Disorder Of The Lumbar Spine, Rebecca Victoria Labry Jan 2004

Impact Of Static Flexion Duration On The Development Of A Neuromuscular Disorder Of The Lumbar Spine, Rebecca Victoria Labry

LSU Master's Theses

Many occupational groups work under adverse conditions in which their spinal columns are fully flexed under load for substantial periods of time. This study was designed to determine the response of the lumbar spine to a static load of a substantial duration under a range of load magnitudes. The impact of static loads of 20, 40 and 60N were applied over 30 min flexion, 10 min rest, and 30 min flexion (for a total of one hour exposure) followed by a 7 h rest. Lumbar viscoelastic creep (laxity) and reflex electromyographic (EMG) activity were monitored over both flexion periods and …

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Food Safety Knowledge And Practices Of Food Recovery Agency Workers Before And After Food Safety Training, Sara Katherine Waggoner Jan 2004

Food Safety Knowledge And Practices Of Food Recovery Agency Workers Before And After Food Safety Training, Sara Katherine Waggoner

LSU Master's Theses

Many food recovery agencies depend on donated food, and its safety is critical for the health of vulnerable populations. A food safety curriculum was developed for agency volunteers and paid staff of the Lower Mississippi Delta region. Examples of topics in the curriculum included: personal hygiene, food storage, transporting food safely, and HACCP. Food Safety Knowledge Pre- and Posttests (20 questions) were identical, and validity and reliability were established prior to use. Paired t-tests were performed to determine the effectiveness of the curriculum (n=190). A Food Safety Practices Survey (10 questions) demonstrating attitudes and behaviors regarding food safety practices in …

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Travel Time Tomographic Imaging Of The Distribution Of The Effective Stress In Clean Sand Under A Model Footing, William M. Tanner Jan 2004

Travel Time Tomographic Imaging Of The Distribution Of The Effective Stress In Clean Sand Under A Model Footing, William M. Tanner

LSU Master's Theses

The use of high-speed data acquisition systems, inexpensive and reliable transducers, and better models of interpretation have combined to make elastic wave tomographic imaging of geotechnical engineering systems easier to accomplish both in the laboratory and in the field. An important application of these developments is that the evaluation of states of effective stress in soils using images of elastic wave velocity distribution. As a consequence, it is possible to experimentally estimate the state of induced and in-situ effective stresses and to compare these results with established models of stress distribution based on the theory of elasticity (e.g., Boussinesq’s solution). …

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Software Architecture: Styles And Representational Schemes, Somo Subro Banerjee Jan 2004

Software Architecture: Styles And Representational Schemes, Somo Subro Banerjee

LSU Master's Theses

Software architecture is being widely used today to describe a very high-level design methodology of large software systems. Software architecture represents the overall structure of a system in an abstract, structured manner. A good architectural representation scheme holds the key to the effectiveness of a software architecture description and usage. In this work we look at architectural styles and architectural representation schemes. We propound the idea that the layered architectural model is a suitable candidate for a generalized architectural style and that it can cater to many different problem domains, other than the message-passing systems it has traditionally been used …

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Effects Of Pressure Suit And Race On Functional Reach, Static And Dynamic Strength, Nageswara Rao Uppu Jan 2004

Effects Of Pressure Suit And Race On Functional Reach, Static And Dynamic Strength, Nageswara Rao Uppu

LSU Master's Theses

In the design of any manual workspace, it is important for the designers to have access to data that can illustrate reach capabilities under real-time work situation. Wearing bulky clothing (pressure suit) and protective restraints (seat or shoulder harness belts) is often mandatory in high acceleration work environments. Clothing and personal equipment worn can influence the functional reach and strength values since they add to the body size. The present study was conducted to investigate the effect of wearing a VKK-6M pressure suit on functional reach limitations and strength values. The technology of incorporating body dimensions into cockpit design primarily …

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Abiotic And Biotic Factors Affecting The Distribution Of Solenopsis Invicta Buren, Brachymyrmex Sp., And Linepithema Humile (Mayr) In East Baton Rouge Parish, Louisiana, Jessica Lynn Rosson Jan 2004

Abiotic And Biotic Factors Affecting The Distribution Of Solenopsis Invicta Buren, Brachymyrmex Sp., And Linepithema Humile (Mayr) In East Baton Rouge Parish, Louisiana, Jessica Lynn Rosson

LSU Master's Theses

Ant populations and their distribution are affected by many circumstances. Abiotic factors such as weather, water availability, and soil characteristics may determine if a habitat is suitable for ants. Other factors such as level of disturbance, available food resources, reproductive biology, and natural enemies also contribute to defining ant distribution. Three ant species in East Baton Rouge parish, Louisiana were studied to determine what factors affected their distribution by measuring abiotic and biotic factors at sampling sites throughout the parish. These factors included weather, water availability, vegetation types, level of disturbance, and soil characteristics. Factors which predict abundance of Solenopsis …

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