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2013

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Parametric Optimization Of A Single-Tracked Vehicle, Darrick Jason Berner Jan 2013

Parametric Optimization Of A Single-Tracked Vehicle, Darrick Jason Berner

LSU Master's Theses

ABSTRACT The purpose of a suspension system for a vehicle is to contribute to the handling and assist in isolating the occupants from vibrations due to road irregularities. Generally, these primary functions are often at odds so the goal is to design a suspension system that finds the appropriate compromise. The focus of this thesis is to develop a two degree of freedom model and use parametric analysis to demonstrate an optimization technique by varying several geometric characteristics on a single-track vehicle. Furthermore, a dynamic vibration absorber will be added to the model to demonstrate its effect on the system. …

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An Analysis Of The Allocation Of Fema Public Assistance Funds Along The U.S. Gulf Coast Following Hurricanes Katrina, Rita, And Wilma, Pamela Camille Golden Jan 2013

An Analysis Of The Allocation Of Fema Public Assistance Funds Along The U.S. Gulf Coast Following Hurricanes Katrina, Rita, And Wilma, Pamela Camille Golden

LSU Master's Theses

Due to the effects of global climate change, natural disasters such as hurricanes are increasing in terms of both intensity and frequency. During the record-breaking hurricane season of 2005, Hurricanes Katrina, Rita, and Wilma struck the U. S. Gulf Coast, affecting areas from Texas to Florida and causing billions of dollars in damage. This study examines the allocation of FEMA Public Assistance across the affected Gulf of Mexico states, what factors account for variation in in assistance allocation, what are the priorities for recovery among county leaders and what obstacles they have encountered since 2005. This study includes 136 counties …

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Detection Of Interesting Traffic Accident Patterns By Association Rule Mining, Harisha Donepudi Jan 2013

Detection Of Interesting Traffic Accident Patterns By Association Rule Mining, Harisha Donepudi

LSU Master's Theses

In recent years, the accident rate related to traffic is high. Analyzing the crash data and extracting useful information from it can help in taking respective measures to decrease this rate or prevent the crash from happening. Related research has been done in the past which involved proposing various measures and algorithms to obtain interesting crash patterns from the crash records. The main problem is that large numbers of patterns were produced and vast number of these patterns would be obvious or not interesting. A deeper analysis of the data is required in order to get the interesting patterns. In …

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Evaluating The Effectiveness Of Response To Intervention In Ela And Math For Sixth, Seventh, And Eighth Grade Students, Shehla Khan Jan 2013

Evaluating The Effectiveness Of Response To Intervention In Ela And Math For Sixth, Seventh, And Eighth Grade Students, Shehla Khan

LSU Master's Theses

Abstract This study examined the combined effectiveness of Tier I and Tier II instruction in the context of a Response to Intervention framework with sixth, seventh and eighth grade students both in ELA and Math. The Tier I interventions emphasized topics from the Grade Level Expectations that the students were having difficulties grasping during regular classroom instruction. Tier II instruction mainly emphasized preparing students for the standardized iLEAP and LEAP tests. These students were then compared with a group of similar students who did not receive tiered instructions (control group). Students who participated in Tier I or Tier II instructions …

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The Effects Of The Peer Instruction Technique Think-Pair-Share On Students' Performance In Chemistry, Kathleen Sipos Trent Jan 2013

The Effects Of The Peer Instruction Technique Think-Pair-Share On Students' Performance In Chemistry, Kathleen Sipos Trent

LSU Master's Theses

Think-Pair-Share is an active learning strategy which involves pairs of students discussing answers to questions or problems. The purpose of this study was to determine if the peer instruction technique Think-Pair-Share improved students’ performance in high-school chemistry. The teacher used one class of students as a control group. This group did not use Think-Pair-Share for the chapter investigated, “Chemical Reactions”. The teacher used two other classes of students, who did use Think-Pair-Share for this chapter, as the experimental group. There was no difference in the learning gains between the control and experimental groups. Think-Pair-Share and normal classroom instruction methods were …

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Problem Based Learning In A Middle School Science Class : Effect On Student Retention Of Concepts In Plate Tectonics And Rocks, Brittany Sharday Hinyard Jan 2013

Problem Based Learning In A Middle School Science Class : Effect On Student Retention Of Concepts In Plate Tectonics And Rocks, Brittany Sharday Hinyard

LSU Master's Theses

This study investigated the effectiveness and student perceptions of Problem Based Learning (PBL) compared to Traditional Based Learning (TBL) in an eighth grade rural, public middle school using two earth science concepts. Over a four week period, students were taught concepts related to both Plate Tectonics and Rocks. The control group (TBL) for Plate Tectonics (n = 46) was the experimental group (PBL) for Rocks (n = 47). Similarly, the experimental group (PBL) for Plate Tectonics (n = 49) was the control group (TBL) for Rocks (n = 51). The pretest scores and learning gains for the students were compared …

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The Reduction And Reoxidation Of Ceria : A Natural Abundance Oxygen Isotope Approach, Justin Alan Hayles Jan 2013

The Reduction And Reoxidation Of Ceria : A Natural Abundance Oxygen Isotope Approach, Justin Alan Hayles

LSU Master's Theses

Ceria (CeO2) is a fluorite type oxide that has been used extensively as an oxygen storage media in three-way catalysts, as an oxygen partial pressure regulator, as a fuel additive for the reduction of soot and for the production of syn-gas from water and carbon dioxide. It is known that exposing ceria powders to low pO2 and/or high temperature conditions will cause ceria to partially reduce. This partial reduction leads to the formation of oxygen vacancies, which up to a limit, do not significantly influence the crystal structure. When partially reduced ceria is exposed to high pO2 environments, such as …

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A Microfluidic Bacteria Culturing Device With Maldi Mass Spectrometry Detection, Pratap Reddy Machavaram Siva Jan 2013

A Microfluidic Bacteria Culturing Device With Maldi Mass Spectrometry Detection, Pratap Reddy Machavaram Siva

LSU Master's Theses

A novel microfluidic device was developed for bacterial cell culturing using mass spectrometry as the detector. One of the challenges in proteomics is to achieve high sensitivity in the identification of proteins in complex samples with widely varying concentrations. The main limitations for proteomic studies are relatively slow and labor-intensive steps such as cell culturing and protein digestion of small sample quantities. Microfluidics is a promising approach to increase throughput and to reduce the time-consuming steps that are necessary for proteomics. When an analytical detection method is combined with microfluidics it can overcome limitations that are important in the analysis …

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Coastal Plants For Biofuel Production And Coastal Preservation, Chester Charles Malveaux Jan 2013

Coastal Plants For Biofuel Production And Coastal Preservation, Chester Charles Malveaux

LSU Master's Theses

ABSTRACT Sustainable and renewable biofuels as well as coastal preservation are important to the State of Louisiana which is losing its coastline at the rate of up to 100 square kilometers per year. This has important implications for other coastal areas worldwide. By managing water hyacinth in canals and lakes in coastal Louisiana the biomass of this fast growing aquatic plant can reduce coastal erosion by absorbing wave energy, and remediate waste water through bioabsorption of contaminants, while also providing a source of biofuel. This research has shown that coastal vegetation can play a part in lessening the impact of …

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Tops Tech Utilization: Systemic Barriers And Facilitators In Louisiana, Melissa Clare Ledoux Jan 2013

Tops Tech Utilization: Systemic Barriers And Facilitators In Louisiana, Melissa Clare Ledoux

LSU Master's Theses

TOPS Tech is a social welfare program in Louisiana that provides students with financial support to obtain the specific training that they need to get the jobs that are available in Louisiana. Since 1998, 42,918 students were eligible for the award, yet only 5,515 (12.85%) students enrolled full-time and utilized it (Louisiana Board of Regents, 2012). In order for educational leaders in Louisiana to improve participation in the TOPS Tech Program, they must first understand the barriers faced by students who want to utilize it. This study explored the potential factors contributing to the utilization (or underutilization) of TOPS Tech. …

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Statistical Classification Problems In Assessment Of Teachers, Xuan Wang Jan 2013

Statistical Classification Problems In Assessment Of Teachers, Xuan Wang

LSU Master's Theses

Classification and regression trees form an important and indispensable tool in data analysis and classification problems. Class trees are described in detail with examples. The method is applied to a data set pertaining to evaluation of teachers. In addition, two other classification methods, bagging and AdaBoost are explained. These methods improve existing classifiers to nearly optimal classifiers.

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Bayesian Inference Application To Burglary Detection, Ishan Singh Bhale Jan 2013

Bayesian Inference Application To Burglary Detection, Ishan Singh Bhale

LSU Master's Theses

Real time motion tracking is very important for video analytics. But very little research has been done in identifying the top-level plans behind the atomic activities evident in various surveillance footages [61]. Surveillance videos can contain high level plans in the form of complex activities [61]. These complex activities are usually a combination of various articulated activities like breaking windshield, digging, and non-articulated activities like walking, running. We have developed a Bayesian framework for recognizing complex activities like burglary. This framework (belief network) is based on an expectation propagation algorithm [8] for approximate Bayesian inference. We provide experimental results showing …

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Electric Field Influence On The Combustion Of Fuel Droplets, Solomon Benghan Jan 2013

Electric Field Influence On The Combustion Of Fuel Droplets, Solomon Benghan

LSU Master's Theses

Improving the combustion efficiency of fuels in combustion devices has become imperative in the face of the diminishing rate of the discovery of new energy sources and an ever increasing demand for energy. While there are other ways of improving combustion efficiency, this study investigated the effect of electric field on the combustion of fuel droplets. In order to model the physics of the problem, a mass transfer evaporation model, heat transfer evaporation model and a simple burning droplet model were considered and their result compared to existing result from literature. A burning rate constant of 1.380mm2/s, 14.910mm2/s and 0.612mm2/s …

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Alexandre Iacovleff : "Exotic Academicism" In Europe And America, (1914-1938), Kara Blanken Jan 2013

Alexandre Iacovleff : "Exotic Academicism" In Europe And America, (1914-1938), Kara Blanken

LSU Master's Theses

Art historians often refer to the interwar period of the early twentieth century as la retour à l’ordre. The twenty-one years from 1918 to 1939 represent a return to sober academicism, order, and classicism in art following the destruction and uncertainty caused by the First World War. This mentality of artistic “stability,” combined with the Western fascination for exotic cultures of Africa and Asia, formed the hallmarks of the Art Déco style. Alexandre Iacovleff was a Russian artist who embodied the international artistic spirit of Art Déco from 1914 until his death in 1938. His paintings and drawings, rendered in …

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Some Effects Of Nutrient And Flooding Stress Manipulation On Coastal Louisiana Wetland Vegetation, James Stephen Ialeggio Jan 2013

Some Effects Of Nutrient And Flooding Stress Manipulation On Coastal Louisiana Wetland Vegetation, James Stephen Ialeggio

LSU Master's Theses

Freshwater diversions are a relatively recently utilized tool in wetland loss mitigation that stimulate an organic accretion response in marsh vegetation, which is based in root production and thus belowground biomass. The effectiveness of freshwater diversions in slowing marsh loss probably varies across a gradient of the factors they supply: decreased salinity, increased nutrient concentrations, and increased inundation. Flooding stress is commonly thought to be the overriding factor limiting wetland vegetation growth, however its influence may vary across salinity and nutrients. Therefore, plugs of Spartina patens were planted in four “marsh organs” consisting each of 36 sediment-filled PVC pipes of …

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Bachman's Sparrow (Peucaea Aestivalis) Population Structure Across The Southeastern Usa, Blain Annette Cerame Jan 2013

Bachman's Sparrow (Peucaea Aestivalis) Population Structure Across The Southeastern Usa, Blain Annette Cerame

LSU Master's Theses

Understanding gene flow and population structure in wildlife populations helps managers to protect distinct genetic lineages and genetic variation in small, isolated populations at high risk of extinction. I assessed genetic diversity in Bachman’s Sparrows (Peucaea aestivalis) to evaluate the role of natural barriers in shaping evolutionarily significant units as well as the effect of anthropogenically-caused habitat loss and fragmentation on population differentiation and diversity. Genetic diversity was assessed across the geographic range of Bachman’s Sparrow by genotyping 226 individuals at 18 microsatellite loci and sequencing 48 individuals at nuclear and mitochondrial DNA genes. Multiple analyses consistently demonstrated high levels …

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Implementing And Managing Self Assessment Procedures, Terry Leman Armstrong Jan 2013

Implementing And Managing Self Assessment Procedures, Terry Leman Armstrong

LSU Master's Theses

This study tests the hypothesis that implementing, managing and enhancing self-assessment procedures may improve learning. One hundred and fifty seven (157) financial math students in a high school with a predominantly at-risk population were divided randomly into an experimental group (self assessment and reflection) and a control group (traditional practice work). The experimental group performed significantly better than the control group (p = 0.02). The experimental group increased their scores from an average of 5.3 out of 18 correct on the pre-test to an average of 11 out of 18 correct on the post-test. The control group increased their scores …

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Closed Form Solutions To The Optimality Equation Of Minimal Norm Actuation, Jorge Antonio Guerra Jan 2013

Closed Form Solutions To The Optimality Equation Of Minimal Norm Actuation, Jorge Antonio Guerra

LSU Master's Theses

This research focused on the problem of minimal norm actuation in the context of partial natural frequency or pole assignment applied to undamped vibrating systems by state feedback control. The result of the research was the closed form solutions for the minimal norm control input and gain vectors. These closed form solutions should took open loop eigenpairs and the desired frequencies of the controlled system and outputted the optimal controller parameters. This optimization technique ensures that the system’s dynamics will be effectively controlled while keeping the controller effort minimal. The controller must then be able to shift only the desired …

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Effect Of Surfactant On Dynamics Of A Droplet Released In A Quiescent Medium, Abhijit Rao Jan 2013

Effect Of Surfactant On Dynamics Of A Droplet Released In A Quiescent Medium, Abhijit Rao

LSU Master's Theses

During the ‘Deepwater Horizon’ accident, dispersants were used as one of the remediation methods to mitigate the ill effects of oil that entered the water column. The dispersants lower the interfacial tension at the oil-water interface and cause the large oil droplets to disintegrate into finer droplets which remain dispersed in the water column for longer times. A dispersant typically is composed of a surfactant and solvent. Surfactants are chemical compounds which are chiefly responsible for the lowering of interfacial tension at oil water interface. In this study, we have investigated the effect of surfactant on the dynamics of a …

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Metamorphic And Geochemical Signatures Of Calc-Silicate Gneisses From The Sawtooth Metamorphic Complex, Idaho, Usa : Implications For Crustal Evolution In Western North America, Isis Fukai Jan 2013

Metamorphic And Geochemical Signatures Of Calc-Silicate Gneisses From The Sawtooth Metamorphic Complex, Idaho, Usa : Implications For Crustal Evolution In Western North America, Isis Fukai

LSU Master's Theses

The Sawtooth Metamorphic Complex (SMC) of central Idaho contains exposures of metasupracrustal rocks that may provide constraints on Precambrian crustal evolution in northwestern United States. Petrographic textures, whole-rock geochemistry, and thermobarmetry of SMC calc-silicate gneisses, collected at high-resolution, record multiple stages of crustal development, including: contiguous deposition of a sandstone-to-shale sequence derived from post-Archean continental sediments, metamorphism during two medium-high-grade thermal events (M1, M2), and two distinct episodes of deformation (D1, D2). Whole-rock concentrations of Cr (23.97-76.43 ± 3.0 ppm), Ni (6.82-33.10 ± 3.5 ppm), Th (2.11-12.04 ± 1.6 ppm), Sc (3.81-11.53 ± 1.6 ppm), and Zr (322-658 ± 3.9 …

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Natural Fracture Characterization In The Haynesville Shale, East Texas: A Core Study, Frank Leslie Morgan Jan 2013

Natural Fracture Characterization In The Haynesville Shale, East Texas: A Core Study, Frank Leslie Morgan

LSU Master's Theses

The Haynesville Shale in East Texas and Northwest Louisiana is one of the most studied and explored shale-gas plays in the United States. With new horizontal drilling and completion strategies, energy companies can produce hydrocarbons directly from the source rock making the Haynesville Shale an attractive resource. A key component of enhanced hydrocarbon production is the presence of natural fractures. They may serve as permeable pathways for hydrocarbon flow, especially in tight shales such as in the Haynesville Shale, where the matrix permeability is very low. In the case of the Haynesville Shale, little is known about the occurrence of …

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Evaluating The Effectiveness Of A Classwide Social Skills Intervention With Preschoolers And Kindergarteners, Haley E. York Jan 2013

Evaluating The Effectiveness Of A Classwide Social Skills Intervention With Preschoolers And Kindergarteners, Haley E. York

LSU Master's Theses

The purpose of the current study was to determine the effectiveness of a manualized, universal social skills intervention for young students. Past research on the use of universal interventions within the domain of social skills has shown great promise, and the importance of social skills has been demonstrated through their empirical relation to academic and behavioral outcomes. Additional research has shown that, overall, social skills training interventions for young children are successful and have lasting effects. These findings convey the importance and need for effective, efficient, and early social skills training interventions. As such, this study used a quasi-experimental pretest-posttest …

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A Feasibility Study Of Multi-Functional Wells For Water Coning Control And Disposal, Lu Jin Jan 2013

A Feasibility Study Of Multi-Functional Wells For Water Coning Control And Disposal, Lu Jin

LSU Doctoral Dissertations

Although water coning is well understood, it is difficult to control in field operations resulting in low recovery and large volumes of waste produced water. A solution - proposed here - is a multi-functional well with the in-situ bottom water drainage and injection installations - Downhole Water Loop (DWL). Theoretically, DWL greatly improves well performance (for example, a two-fold increase of DWL well’s water drainage rate would increase the critical (water-free) oil rate by 80%). However, DWL has practical limitations that must be quantified for actual well design. The objective of this work is to: (1) find maximum water drainage …

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All-Women's Flat Track Roller Derby : Gender, Psychoanalysis, And Meaning, Matthew Newsom Jan 2013

All-Women's Flat Track Roller Derby : Gender, Psychoanalysis, And Meaning, Matthew Newsom

LSU Master's Theses

For over a decade, women’s flat track roller derby has grown to reach thousands of women in various countries around the world. Through roller derby, these women are engaging in a full-contact sport that has no comparable male counterpart, making this rapidly-growing sport an interesting arena for gender and cultural research. This thesis uses ethnographic information collected from two U.S. derby teams in order to demonstrate the dynamic interplay of culture and psychology in the making of cultural and personal meaning. In so doing, this research validates the role that psychology—and specifically, psychoanalysis—can play in cultural anthropology, and demonstrates a …

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Model For Acid-Base Chemistry In Nanoparticle Growth (Mabnag), Taina Yli-Juuti, Kelley Barsanti, L. Hildebrandt Ruiz, Antti-Jussi Kieloaho, U. Makkonen, Tuukka Petäjä, Taina Ruuskanen, Markku Kulmala, Ilona Riipinen Jan 2013

Model For Acid-Base Chemistry In Nanoparticle Growth (Mabnag), Taina Yli-Juuti, Kelley Barsanti, L. Hildebrandt Ruiz, Antti-Jussi Kieloaho, U. Makkonen, Tuukka Petäjä, Taina Ruuskanen, Markku Kulmala, Ilona Riipinen

Civil and Environmental Engineering Faculty Publications and Presentations

Climatic effects of newly-formed atmospheric secondary aerosol particles are to a large extent determined by their condensational growth rates. However, all the vapours condensing on atmospheric nanoparticles and growing them to climatically relevant sizes are not identified yet and the effects of particle phase processes on particle growth rates are poorly known. Besides sulfuric acid, organic compounds are known to contribute significantly to atmospheric nanoparticle growth. In this study a particle growth model MABNAG (Model for Acid-Base chemistry in NAnoparticle Growth) was developed to study the effect of salt formation on nanoparticle growth, which has been proposed as a potential …

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Inductivley Coupled Plasma Optical Emission Spectroscopy Analysis Of Heavy Metal Concentrations In Gulf Menhaden (Brevoortia Patronus) Populations In The Northern Gulf Of Mexico From 2011 To 2012, Hannah Paula Rockett Jan 2013

Inductivley Coupled Plasma Optical Emission Spectroscopy Analysis Of Heavy Metal Concentrations In Gulf Menhaden (Brevoortia Patronus) Populations In The Northern Gulf Of Mexico From 2011 To 2012, Hannah Paula Rockett

LSU Master's Theses

In 2010, the Deepwater Horizon (DWH) oil spill, released 4.9 million barrels of oil into the Gulf of Mexico, creating the largest marine oil spill in the history of the U.S. petroleum industry. Trace metals, including those from crude oil, were dispersed in the water column and bound to suspended particulates. As obligate filter-feeding omnivores and a predominate fishery in the Gulf of Mexico, Gulf menhaden (Brevoortia patronus) are susceptible to trace metal accumulation. Samples of menhaden were collected at two locations in coastal Louisiana, Grand Isle (GI) and Vermillion Bay (VB), with VB serving as the non-impacted DWH oil …

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An Evaluation Of Oyster Stocks, Grow-Out Conditions, And Off-Bottom Culture Methods For Increasing Commercial Production Of Eastern Oysters (Crassostrea Virginica) In The Northern Gulf Of Mexico, Justin Morgan Leonhardt Jan 2013

An Evaluation Of Oyster Stocks, Grow-Out Conditions, And Off-Bottom Culture Methods For Increasing Commercial Production Of Eastern Oysters (Crassostrea Virginica) In The Northern Gulf Of Mexico, Justin Morgan Leonhardt

LSU Master's Theses

This project examined the ecologically and economically valuable eastern oyster (Crassotrea virginica) in Louisiana with two field experiments. Little information has been gathered on the performance of local Louisiana oyster stocks and no study has focused on a comparison of stocks among variable estuarine conditions. Additionally, the use of alternative grow-out methods and intensive cage aquaculture has never been evaluated in Louisiana. For the first study, a dermo-resistant stock of oysters (LSU-OYS: ‘OBOY’) was compared to three wild oyster stocks along a salinity gradient. The objectives of this study were to determine the optimal oyster stock(s) and the ideal grow-out …

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Controls On The Composition Of Saline Formation Waters From Coastal And Offshore Louisiana, Marielle Elaine Ausburn Jan 2013

Controls On The Composition Of Saline Formation Waters From Coastal And Offshore Louisiana, Marielle Elaine Ausburn

LSU Master's Theses

Geothermal energy is a renewable energy source that can contribute to the U.S. energy mix. As such, new technologies are being explored for lower temperature systems which would open new areas for exploration in Louisiana. Unlike concepts proposed in the early 1980s, in which heat would have been extracted at the land surface from produced overpressured waters, methods currently being proposed would involve engineered down-hole heat exchangers with zero-mass-fluid withdrawal. A re-examination has been made of the controls on the composition of formation waters in south central and offshore Louisiana in the context of providing insight into water-rock reactions that …

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Depositional History Of The Trinity-Tiger Shoals Region : A Transgressed Delta Complex Of The Middle Holocene Mississippi Delta, Clint Hoyt Edrington Jan 2013

Depositional History Of The Trinity-Tiger Shoals Region : A Transgressed Delta Complex Of The Middle Holocene Mississippi Delta, Clint Hoyt Edrington

LSU Doctoral Dissertations

The Holocene Mississippi River Delta is arguably the world’s most thoroughly researched deltaic system. However, much of this research has occurred predominantly within the present-day subaerial delta, whereas comparatively little research has been attempted downdip within the offshore, more difficult-to-reach parts. This study advances our understanding of the Holocene delta by examining deltaic sediments within the Trinity-Tiger Shoals Complex region, located ~ 30 – 40 km offshore of central Louisiana. Specifically, this study addresses two questions. Which delta complex prograded into this offshore region? Do the overlying transgressive deposits reflect that predicted by the prevailing transgressive depositional systems model? To …

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Using Formative Assessment To Enhance Student Performance On Geometric Proof Writing, Benjamin Hargrave Jan 2013

Using Formative Assessment To Enhance Student Performance On Geometric Proof Writing, Benjamin Hargrave

LSU Master's Theses

The purpose of this research is to uncover best practices to create competent proof writers. Studies have shown the best setting to do this is in the high school geometry classroom. Throughout a yearlong study of geometry, students were exposed to theorems and their demonstrations. Despite constant exposure, students were still unable to produce their own proof of propositions. The questions then became how can an educator provide critical feedback that encourages student reasoning and develops logical argumentation skills? With the goal in mind, twenty-five students enrolled in a geometry course at Baton Rouge High School in Baton Rouge, Louisiana …

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