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Articles 1 - 30 of 91
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An Application Programming Interface For Parliamentary Procedure, Grant David Bourque
An Application Programming Interface For Parliamentary Procedure, Grant David Bourque
Honors Theses
No abstract provided.
Material Evaluation Of A Lightweight, Automated Canned Pet Food Dispenser, Kathryn Marie Carr
Material Evaluation Of A Lightweight, Automated Canned Pet Food Dispenser, Kathryn Marie Carr
Honors Theses
No abstract provided.
Pentaerythritol Triacrylate-Co-Trimethylolpropane Nanocomposite Scaffolds As Osteogenic Components For Bone Tissue Engineering, Mollie Marie Smoak
Pentaerythritol Triacrylate-Co-Trimethylolpropane Nanocomposite Scaffolds As Osteogenic Components For Bone Tissue Engineering, Mollie Marie Smoak
Honors Theses
No abstract provided.
Impact Of Additive Manufacturing Technologies And The Development Ofa Mixed Metal Powderbed Additive Manufacturing System, Gerald L. Knapp
Impact Of Additive Manufacturing Technologies And The Development Ofa Mixed Metal Powderbed Additive Manufacturing System, Gerald L. Knapp
Honors Theses
No abstract provided.
The Exacerbating Effect Of Coastal Erosion To Orphan Well Risk Analysis In Terrebonne Parish, Taylor Reeves
The Exacerbating Effect Of Coastal Erosion To Orphan Well Risk Analysis In Terrebonne Parish, Taylor Reeves
Honors Theses
No abstract provided.
Zein Nanoparticle Interaction With Soybean Plants, Kurt Ristroph
Zein Nanoparticle Interaction With Soybean Plants, Kurt Ristroph
Honors Theses
No abstract provided.
Core-Shell Nanoparticles For The Desulfurization Of Biogas, Joshua Saltz
Core-Shell Nanoparticles For The Desulfurization Of Biogas, Joshua Saltz
Honors Theses
No abstract provided.
Modeling The Effects Of Mass Transport On The Electrochemical Reduction Of Co2 At Cu2o Surfaces, Edward Alexander Thistlethwaite Iii
Modeling The Effects Of Mass Transport On The Electrochemical Reduction Of Co2 At Cu2o Surfaces, Edward Alexander Thistlethwaite Iii
Honors Theses
No abstract provided.
Modeling Of Reaction Kinetics And Mass Transfer Of Carbon Dioxide Electrochemical Reduction, Sneha Seetharama
Modeling Of Reaction Kinetics And Mass Transfer Of Carbon Dioxide Electrochemical Reduction, Sneha Seetharama
Honors Theses
No abstract provided.
Single Cell Encapsulation Using A Microfluidic Droplet Generator, Seleipiri Charles
Single Cell Encapsulation Using A Microfluidic Droplet Generator, Seleipiri Charles
Honors Theses
No abstract provided.
Density Functional Theory Calculations On The Doping Sequence Of Mnxfen(1-X)Ge, Jordan C. Ball
Density Functional Theory Calculations On The Doping Sequence Of Mnxfen(1-X)Ge, Jordan C. Ball
Honors Theses
No abstract provided.
Aconitic Acid, Glycerol And Cinnamic Acid Polyester Characterization For Bone Tissue Engineering, Katie Joanna Hogan
Aconitic Acid, Glycerol And Cinnamic Acid Polyester Characterization For Bone Tissue Engineering, Katie Joanna Hogan
Honors Theses
No abstract provided.
Extracting Physically Realistic Pore Network Features From Xct Data And Investigating The Impact Of Pore Topology On Flow In Porous Media, Godfrey Mills
LSU Doctoral Dissertations
Synchrotron XCT imaging approaches applied in this study provides crucial information on the impact of image voxel resolution on image based simulation results and the characteristic length scales that can be extracted from XCT image data sets. The methods and results in this work provides a holistic approach in generating reliable and representative porous media flow and transport properties via image processing and pore scale simulations through XCT image data sets of porous media. This study also shows how XCT imaging, coupled with pore topological and morphological measures can be utilized in quantifying the differences, and/or similarities between a 2.5D …
Molecular Simulation Study Of Oil Hydrocarbons, Dispersants And Other Organics In Atmospheric Air/Water Interfaces, Zenghui Zhang
Molecular Simulation Study Of Oil Hydrocarbons, Dispersants And Other Organics In Atmospheric Air/Water Interfaces, Zenghui Zhang
LSU Doctoral Dissertations
The main objective of this dissertation is to study the interfacial properties of organic contaminants, in particular green leaf volatiles (GLVs), oil hydrocarbons [mainly intermediate-volatile organic compounds (IVOCs) and semi-volatile organic compounds (SVOCs)], as well as surfactant species (i.e. DOSS and Span 80) from Corexit dispersants at atmospheric air/water and air/seawater interfaces. All these compounds can significantly contribute to the formation of secondary organic aerosols (SOAs). Furthermore, our simulation work on IVOCs, SVOCs and Corexit surfactants, combining with experiments from the Valsaraj group, suggests that these compounds can be adsorbed on the surface of seawater droplets and aerosolized into the …
Modeling Churn And Annular Flow Regimes In Vertical And Near-Vertical Pipes With Small And Large Diameters, Erika Viana Pagan
Modeling Churn And Annular Flow Regimes In Vertical And Near-Vertical Pipes With Small And Large Diameters, Erika Viana Pagan
LSU Master's Theses
This thesis presents an improved model for gas-liquid two-phase flow in churn and annular flow regimes for small- and large-diameter in vertical and near-vertical pipes. This new model assumes that a net liquid film moves upward along the pipe wall and gas phase moves upward, occupying the majority of the central part of the pipes, and forming a gas core, in both flow regimes. The model is validated using field and laboratory experimental data from several different studies from the literature, in terms of pressure along the wellbore or bottomhole pressure for field conditions (for high-pressure flows in long pipes, …
Modelling Hydraulic Fracturing Propagation In Heterogeneous Reservoirs Using Cohesive Zone Methods, Miguel Alejandro Gonzalez-Chavez
Modelling Hydraulic Fracturing Propagation In Heterogeneous Reservoirs Using Cohesive Zone Methods, Miguel Alejandro Gonzalez-Chavez
LSU Doctoral Dissertations
The recent success in exploiting low permeability shale reservoirs has heavily relied on hydraulic fracturing to produce hydrocarbons economically in disadvantaged reservoir conditions. Although horizontal drilling significantly increases the contact area between the wellbore and the reservoir, the objective of hydraulic fracturing is set on creating further expanded conductive flow paths into the reservoir. This research uses cohesive zone method to numerically simulate hydraulic fracture propagation in the presence of natural fractures in two- and three-dimensional model. The Cohesive element approach limits fracture propagation to some predefined paths. However, in highly fractured formations since hydraulic fractures are growing through a …
Numerical Modeling Of Wetland Hydrodynamics, Agnimitro Chakrabarti
Numerical Modeling Of Wetland Hydrodynamics, Agnimitro Chakrabarti
LSU Doctoral Dissertations
Wave induced erosion accounts for as much as 26% of landloss in coastal Louisiana. This dissertation work, focuses on answering research questions relevant to the design of two shoreline protection methods (a) vegetated wetlands and (b) nearshore breakwaters. Two types of numerical models are used - the three-dimensional (3D) Navier Stokes Equation for small to medium scale experiments and a depth integrated, fully non-linear Boussinesq model for dispersive waves for larger, field scale studies. The former model provides insights into the 3D hydrodynamics of wave interaction with vegetation canopies and breakwaters, while the latter model focuses on the horizontal two …
Calibration Of Resistance Factors Needed In The Lrfd Design Of Drilled Shafts, Alicia Rae Fortier
Calibration Of Resistance Factors Needed In The Lrfd Design Of Drilled Shafts, Alicia Rae Fortier
LSU Master's Theses
This report presents the reliability-based analysis of the calibration of resistance factors for the Load and Resistance Factor Design (LRFD) of axially loaded drilled shafts. AASHTO’s 2012 LRFD Bridge Design Specifications recommends various resistance factors for the design of deep foundations; however, since these values are not specific to any one region, they are very conservative. For Louisiana or Mississippi, the adoption of such recommended resistance factors could substantially increase foundation sizes. Therefore, it is necessary to develop a database of drilled shaft load tests performed in the regions of Louisiana, Mississippi, and surrounding states with similar soil conditions. Sixty-nine …
On The Degradation Of Lubricating Grease, Asghar Rezasoltani
On The Degradation Of Lubricating Grease, Asghar Rezasoltani
LSU Doctoral Dissertations
A comprehensive literature review on physical and chemical degradation monitoring and life estimation models for lubricating greases is presented in chapter one. Degradation mechanisms for lubricating grease are categorized and described, and an extensive survey of the available empirical and analytical grease life estimation models including degradation monitoring standards and methods are presented. In chapter two, irreversible thermodynamic theory is employed to study the mechanical degradation of lubricating grease. A correlation between the mechanical degradation and entropy generation is established and the results are verified experimentally using a rheometer, a journal bearing test rig, and a modified grease worker machine. …
Optimal Configuration Of Inspection And Rework Stations In A Multistage Flexible Flowline, Md. Shahriar Jahan Hossain
Optimal Configuration Of Inspection And Rework Stations In A Multistage Flexible Flowline, Md. Shahriar Jahan Hossain
LSU Master's Theses
Inspection and rework are two important issues of quality control. In this research, an N-stage flowline is considered to make decisions on these two issues. When defective items are detected at the inspection station the items are either scrapped or reworked. A reworkable item may be repaired at the regular defect-creating workstation or at a dedicated off-line rework station. Two problems (end-of-line and multistage inspections) are considered here to deal with this situation. The end-of-line inspection (ELI) problem considers an inspection station located at the end of the line while the multistage inspection (MSI) problem deals with multiple in-line inspection …
A Study Of Fpga Resource Utilization For Pipelined Windowed Image Computations, Aswin Vijaya Varma
A Study Of Fpga Resource Utilization For Pipelined Windowed Image Computations, Aswin Vijaya Varma
LSU Master's Theses
In image processing operations, each pixel is often treated independently and operated upon by using values of other pixels in the neighborhood. These operations are often called windowed image computations (or neighborhood operations). In this thesis, we examine the implementation of a windowed computation pipeline in an FPGA-based environment. Typically, the image is generated outside the FPGA environment (such as through a camera) and the result of the windowed computation is consumed outside the FPGA environment (for example, in a screen for display or an engine for higher level analysis). The image is typically large (over a million pixels 1000×1000 …
The Effects Of Carbon Nanotubes On Cells In A Synthetic Oxygen Carrier Enriched Alginate Scaffold, Joshua Paul Tate
The Effects Of Carbon Nanotubes On Cells In A Synthetic Oxygen Carrier Enriched Alginate Scaffold, Joshua Paul Tate
LSU Master's Theses
Abstract Huge progress has been made in the development of three dimensionally printed tissue structures. With the use of cells, three dimensional printers, and CAD drawing software, donor identical structures can be fabricated. However, cell scaffolds currently lack significant mechanical integrity which can result in reduced cellular survival, attachment, and nutrient delivery. For this reason, multiple strategies have been developed to increase and improve mechanical stability within engineered constructs without having to sacrifice cell viability. The hypothesis of this paper was that incorporating Perfluorotributylamine (PFTBA), a greenhouse gas, with single walled carbon nanotubes (SWCNT), a allotrope of carbon with a …
Flood Damage And Shutdown Times For Industrial Process Facilities, Matthew Lane Flynn
Flood Damage And Shutdown Times For Industrial Process Facilities, Matthew Lane Flynn
LSU Master's Theses
The vulnerability of the Gulf Coast to inundation poses a real threat to both national security and the regional economy due to the concentration of the nation’s energy infrastructure throughout the waterways of the southeastern United States’ waterways. Mitigation efforts thus far have been qualitative and fail to provide raw, quantitative data to aid in the successful management of flooding liabilities. This paper proposes a novel approach to analyzing infrastructure susceptibility by means of a component-based approach to consequences posed by water-borne incursions. Systems are simplified to collections of components, each with a lowest-member elevation, thereby identifying the benchmark for …
Powers And Compensation In Three-Phase Systems With Nonsinusoidal And Asymmetrical Voltages And Currents, Prashanna Dev Bhattarai
Powers And Compensation In Three-Phase Systems With Nonsinusoidal And Asymmetrical Voltages And Currents, Prashanna Dev Bhattarai
LSU Doctoral Dissertations
A contribution to power theory development of three-phase three-wire systems with asymmetrical and nonsinusoidal supply voltages is presented in this dissertation. It includes: • contribution to explanation of power related phenomena • contribution to methods of compensation The power equation of unbalanced Linear Time Invariant (LTI) loads at sinusoidal but asymmetrical voltage is first presented. The different current components of such a load and the phenomenon associated with these current components are described. The load current decomposition is used for the design of reactive balancing compensators for power factor improvement. Next, the current of LTI loads operating at nonsinusoidal asymmetrical …
Effective 3d Geometric Matching For Data Restoration And Its Forensic Application, Kang Zhang
Effective 3d Geometric Matching For Data Restoration And Its Forensic Application, Kang Zhang
LSU Doctoral Dissertations
3D geometric matching is the technique to detect the similar patterns among multiple objects. It is an important and fundamental problem and can facilitate many tasks in computer graphics and vision, including shape comparison and retrieval, data fusion, scene understanding and object recognition, and data restoration. For example, 3D scans of an object from different angles are matched and stitched together to form the complete geometry. In medical image analysis, the motion of deforming organs is modeled and predicted by matching a series of CT images. This problem is challenging and remains unsolved, especially when the similar patterns are 1) …
A Numerical Investigation Of Wellbore Stability Problems Using An Elastoplastic Model, Chang Huang
A Numerical Investigation Of Wellbore Stability Problems Using An Elastoplastic Model, Chang Huang
LSU Master's Theses
Wellbore stability analysis acts an important role in the drilling design to avoid pipe-stuck, lost circulation and the other instability-induced problems. However, the conventional linear elastic model used by the industry is too conservative in predicting the mud weight window. This project is aimed at improving the accuracy of wellbore stability analysis. An elastoplastic model with Drucker-Prager yield criterion featured by strain hardening is proposed to characterize the rock behavior. Object-oriented finite element analysis simulator, NSMOOM, is programmed in MATLAB. The simulator is verified with the analytical solution in the elastic domain and with the commercial software ABAQUS in the …
A Framework To Incorporate A Structural Capacity Indicator Into The State Of Louisiana Pavement Management System, Omar Salaheldin Elbagalati
A Framework To Incorporate A Structural Capacity Indicator Into The State Of Louisiana Pavement Management System, Omar Salaheldin Elbagalati
LSU Doctoral Dissertations
Non-structural factors such as surface distresses and ride quality have been commonly used as the main indicators of in-service pavement conditions. In the last decade, the concept of implementing a structural condition index in Pavement Management System (PMS) to complement functional condition indices has become an important goal for many highway agencies. The Rolling Wheel Deflectometer (RWD) provides the ability to measure pavement deflection while operating at the posted speed limits causing no user delays. The objective of this study was two-fold. First, this study developed a model to predict pavement structural capacity at a length interval of 0.16 km …
Performance Evaluation Of Instrumented Geosynthetics Reinforced Paved Test Sections Built Over Weak Subgrade Using Accelerated Load Testing, Shadi Hanandeh
Performance Evaluation Of Instrumented Geosynthetics Reinforced Paved Test Sections Built Over Weak Subgrade Using Accelerated Load Testing, Shadi Hanandeh
LSU Doctoral Dissertations
Weak soil is a common problem in road construction. Whether it is a temporary access road or a permanent road built over a weak subgrade, a large deformation of the subgrade can lead to deterioration of the paved or unpaved surface. Geosynthetics offer a potentially economical solution for stabilizing roads built over weak soil. Three sets of testing programs were be conducted in this study.The first testing program includes conducting accelerated load testing of full-scale geosynthetic reinforced test lanes using rolling wheel load facility; the second program included conducting laboratory cyclic plate loading test on geosynthetic reinforced test sections constructed …
Development Of A Biosensor System To Detect Bacteria In Food Systems, Luis Alonso Alfaro Sanabria
Development Of A Biosensor System To Detect Bacteria In Food Systems, Luis Alonso Alfaro Sanabria
LSU Doctoral Dissertations
The development of biosensors may assist for the on-site detection of foodborne pathogens. The overall goal of this study was to develop a biosensor system for detecting Listeria innocua (non-pathogenic surrogate bacteria used as a model for pathogenic Listeria monocytogenes) in food systems. The study was divided into three main parts: (1) development of a sample collection and interface system for Listeria innocua from food samples, (2) development of a sample concentration system for the collected bacteria prior detection, and (3) development of a detection system based on a carbon nanotube potentiometric biosensor for a quantitative detection of Listeria innocua. …
Process Monitoring And Data Mining With Chemical Process Historical Databases, Michael Carl Thomas
Process Monitoring And Data Mining With Chemical Process Historical Databases, Michael Carl Thomas
LSU Doctoral Dissertations
Modern chemical plants have distributed control systems (DCS) that handle normal operations and quality control. However, the DCS cannot compensate for fault events such as fouling or equipment failures. When faults occur, human operators must rapidly assess the situation, determine causes, and take corrective action, a challenging task further complicated by the sheer number of sensors. This information overload as well as measurement noise can hide information critical to diagnosing and fixing faults. Process monitoring algorithms can highlight key trends in data and detect faults faster, reducing or even preventing the damage that faults can cause. This research improves tools …