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Design Of Linear Boolean Network Codes For Combination Networks, Shoupei Li Jan 2006

Design Of Linear Boolean Network Codes For Combination Networks, Shoupei Li

LSU Master's Theses

Network coding is a promising technique to improve the throughput of communication networks. In the thesis, we investigate linear Boolean network codes on a special class of multicast networks, called combination networks. Using companion matrices of primitive polynomials over finite fields, we design a class of symmetric linear Boolean network codes from Reed-Solomon codes for single-source combination networks. We also prove that, for some cases, the linear Boolean network codes are optimal in the sense of minimum network uses. In the thesis, we further consider two-source network coding problem for combination networks and other specific networks. We develop a method …

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Muscovite Pseudomorphs After Staurolite As A Record Of Fluid Infiltration During Prograde Metamorphism, Jennifer Kaye Whittington Jan 2006

Muscovite Pseudomorphs After Staurolite As A Record Of Fluid Infiltration During Prograde Metamorphism, Jennifer Kaye Whittington

LSU Master's Theses

Pressure-temperature conditions encountered by metamorphic rocks are often used to constrain tectonic environments of formation. Evidence of the prograde path during metamorphism is often obliterated by peak metamorphic conditions. However, pseudomorphs that form during prograde metamorphism may provide insights into heat and mass transport along this portion of the P-T-X-t path. Seventeen sillimanite zone samples, each containing 2-5 muscovite-rich pseudomorphs after staurolite, were investigated from pelitic schists of the Farmington Quadrangle, west-central Maine, USA. Pseudomorphs are easily recognized by an increase in average grain size (~cm) and change to randomly oriented muscovite-rich (~45-75%) modal mineralogy relative to the rock matrix …

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A Comparative Analysis Of Hurricane Evacuation Traffic Conditions Using Static And Dynamic Traffic Assignments, Santosh Kumar Andem Jan 2006

A Comparative Analysis Of Hurricane Evacuation Traffic Conditions Using Static And Dynamic Traffic Assignments, Santosh Kumar Andem

LSU Master's Theses

This study compares link flows of evacuation traffic using Static Traffic Assignment (STA) with those obtained from Dynamic Traffic Assignment (DTA) and observed traffic counts. The analysis is conducted on a sample of households from South Carolina who evacuated in the face of hurricane Floyd in 1999. The results indicate that traditional static models have the potential to significantly underestimate congestion levels in the network, and DTA models account for nonuniform demand and traffic dynamics in hurricane evacuation much more realistically. From observed traffic counts, traffic volumes vary considerably during an evacuation and the DTA flow estimates generally reproduced these …

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The Bioturbation Transport Of Chemicals In Surface Soils, Maria D. Rodriguez Jan 2006

The Bioturbation Transport Of Chemicals In Surface Soils, Maria D. Rodriguez

LSU Master's Theses

Large quantities of chemicals, such as pesticides, fertilizers, and industrial wastes, have been found throughout the environment raising concerns due to their ecological impacts and implications to human health. Soil is the most important repository of many organic chemicals in the environment. The objective of the present study was to determine the importance of the soil solid phase in the transport of chemicals in soils, and yield quantitative information to better describe bioturbation and its role in the movement of soil particles. Vertical movement of chemicals in the soil solid phase occurs by mixing mechanisms, such as bioturbation, cryoturbation, and …

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Synthesis, Crystal Growth, Magnetic And Transport Properties Of Ln-M-X (Ln=Lanthanide, M=Transition Metal, X=In, Ga) Compounds, Willa Maria Williams Jan 2006

Synthesis, Crystal Growth, Magnetic And Transport Properties Of Ln-M-X (Ln=Lanthanide, M=Transition Metal, X=In, Ga) Compounds, Willa Maria Williams

LSU Doctoral Dissertations

ABSTRACT This dissertation focuses on the structural stability, magnetic and transport properties of ternary lanthanide compounds grown using indium and gallium flux. Single crystals of TbRhIn5 were synthesized using indium flux. TbRhIn5 is isostructural to the well known LnnMIn3n+2 (n = 1, 2, ∞; Ln = La, Ce; M = Rh, Ir) and adopts the HoCoGa5 structure type and crystallizes in the space group P4/mmm, Z = 1. Lattice parameters are a = 4.6000(6) Å and c = 7.4370(11) Å, V = 157.29(6) Å3. A sharp antiferromagnetic transition is observed at TN = 48 K for TbRhIn5. Single crystals of …

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Quantifying Changes In Fish Habitat Use In Coastal Waters Of Louisiana, Usa: A Hydroacoustic Approach, Kevin Mershon Boswell Jan 2006

Quantifying Changes In Fish Habitat Use In Coastal Waters Of Louisiana, Usa: A Hydroacoustic Approach, Kevin Mershon Boswell

LSU Doctoral Dissertations

The development of reliable tools for identifying essential fish habitat (EFH) has proven problematic. Knowledge of the distribution and biomass of fishes over discrete habitat types is a prerequisite for effective use of EFH in the management of important commercial and recreational fish species. Resolution of the influence of habitat type and environmental factors on the distribution of fishes is confounded by limitations of traditional sampling gears. To date, hydroacoustic technology has been widely accepted as a tool for surveying fishery resources; however few studies have implemented acoustics in ultra shallow (<2 m) coastal waters. Efforts should be made to utilize hydroacoustics for quantifying changes in fish distributions within estuarine environments given the benefits provided through acoustic technology (e.g. ease of deployment, reduced sampling effort, and non-invasive sampling attributes). A technique was developed for acoustically sensing fishes in the shallow, turbid waters of Barataria Bay, Louisiana. A robust and lightweight remotely-controlled transducer platform was designed for deploying acoustic gear. Sources of scattering within the bay were identified through a series of exclosure net experiments designed to quantify potential effects of plankton and suspended solids on acoustic scattering. Analysis filters were developed to reduce the effects of bubble-induced noise, often observed during periods when wind speeds were greater than 4.5 m s-1. Side-aspect acoustic target strength-length and target …

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A Neural Network Model For Classification Of Coastal Wetlands Vegetation Structure With Moderate Resolution Imaging Spectro-Radiometer (Modis) Data, Evaristo Joseph Liwa Jan 2006

A Neural Network Model For Classification Of Coastal Wetlands Vegetation Structure With Moderate Resolution Imaging Spectro-Radiometer (Modis) Data, Evaristo Joseph Liwa

LSU Doctoral Dissertations

Mapping coastal marshes is an important component in the management of coastal environments. Classification of marshes using remote sensing data has traditionally been performed by employing either parametric supervised classification algorithms or unsupervised classification algorithms. The implementation of these conversional classification methods is based on the underlying distributions concerning the probability density functions (PDF). Neural networks provide a practical approach to this classification because they are essentially non-parametric data transformations that are not restricted by any underlying assumptions. The major objective of this study was to evaluate the ability of neural networks using Moderate Resolution Imaging Spectro-radiometer (MODIS) data to …

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Effects Of An External Field And Dissipation On Decoherence, Jian Zuo Jan 2006

Effects Of An External Field And Dissipation On Decoherence, Jian Zuo

LSU Doctoral Dissertations

Decoherence is the suppression of the interference of quantum states. It plays important roles in the study of the quantum-classical transition. It is also the major obstacle in the implementation of various schemes of quantum computers. Decoherence can be affected by many factors. The interactions between quantum systems of interest and dissipative environments cause the extensively studied environment-induced-decoherence. Decoherence can also occur as the result of a temperature effect. A recent experiment investigated the engineering of decoherence, which involves applying an external field to the quantum system. In this thesis, we study the effect of an external field on decoherence …

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Intercarrier Interference Suppression For The Ofdm Systems In Time-Varying Multipath Fading Channels, Xiaozhou Huang Jan 2006

Intercarrier Interference Suppression For The Ofdm Systems In Time-Varying Multipath Fading Channels, Xiaozhou Huang

LSU Doctoral Dissertations

Due to its spectral efficiency and robustness over the multipath channels, orthogonal frequency division multiplexing (OFDM) has served as one of the major modulation schemes for the modern communication systems. In the future, the wireless OFDM systems are expected to operate at high carrier-frequencies, high speed and high throughput mobile reception, where the fasting time-varying fading channels are encountered. The channel variation destroys the orthogonality among the subcarriers and leads to the intercarrier interference (ICI). ICI poses a significant limitation to the wireless OFDM systems. The aim of this dissertation is to find an efficient method of providing reliable communication …

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Theoretical And Experimental Study On Cable Vibration Reduction With A Tmd-Mr Damper, Wenjie Wu Jan 2006

Theoretical And Experimental Study On Cable Vibration Reduction With A Tmd-Mr Damper, Wenjie Wu

LSU Doctoral Dissertations

Stay cables are vulnerable to dynamic excitations because of their low intrinsic damping. Excessive cable vibrations cause frequent maintenance and are detrimental to the safety of the entire bridge. Targeting the severe cable vibration problem, in addition to using the existing Magnetorheological (MR) damper, the current study proposes a new type of damper, called the Tuned Mass Damper-Magnetorheological (TMD-MR) damper. Theoretical and experimental investigations for the damper performance on the cable vibration reduction are conducted, which provides the necessary research support for practical implementation. Experiments on the individual MR damper are carried out first to gain some experience on the …

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Magnetic, Thermodynamic And Transport Properties Of The Magnetic Semiconductor Fe₁₋Xcoxs₂ And Superconducting Lasb₂, Song Guo Jan 2006

Magnetic, Thermodynamic And Transport Properties Of The Magnetic Semiconductor Fe₁₋Xcoxs₂ And Superconducting Lasb₂, Song Guo

LSU Doctoral Dissertations

In recent years magnetic semiconductors have attracted a great deal of attention because it is thought that they can be used to generate spin polarized current in spintronics, an emerging field where the spin degree of freedom of charge carriers is utilized in microelectronic devices. In this dissertation work, we investigate the magnetic, thermodynamic, and transport properties of the magnetic semiconductor Fe1-XCoxS2 for x less than 0.14, the doping range where Insulator-to-Metal and paramagnetic-to-ferromagnetic transitions occur. We discovered that the Kondo effect is an important ingredient in the paramagnetic region of magnetic semiconductor Fe1-X …

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Filippov's Operator And Discontinuous Differential Equations, Khalid Abdulaziz Alshammari Jan 2006

Filippov's Operator And Discontinuous Differential Equations, Khalid Abdulaziz Alshammari

LSU Doctoral Dissertations

The thesis is mainly concerned about properties of the so-called Filippov operator that is associated with a differential inclusion x'(t) ε F(x(t)) a.e. t ε [0,T], where F : Rn → Rn is given set-valued map. The operator F produces a new set-valued map F[F], which in effect regularizes F so that F[F] has nicer properties. After presenting its definition, we show that F[F] is always upper-semicontinuous as a map from Rn to the metric space of compact subsets of Rn endowed with the Hausdorff metric. Our main approach is to study the …

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Design And Evaluation Of Automated, Continuous Culture Techniques For Brachionus Rotundiformis, Zhengzhong Zhang Jan 2006

Design And Evaluation Of Automated, Continuous Culture Techniques For Brachionus Rotundiformis, Zhengzhong Zhang

LSU Doctoral Dissertations

A 40-L recirculating rotifer turbidostat (RRT) pilot system consisting of a rotifer reactor, biofilter, foam fractionator, feed container, harvester, and two air-lift pumps was designed to produce B. rotundiformis, a small (S-type) rotifer, that is increasingly demanded for production of small-gape marine finfish larvae. The system’s automatic monitoring (turbidity, pH, conductivity and temperature) and controlling (turbidity, pH, feeding and harvesting) were performed by a Rugid™ computer. A 4 (temperature) x 3 (salinity) study indicated that a 30oC/15 ppt treatment is the most favorable to the growth of B. rotundiformis. Under these conditions, the effect of harvest rate on rotifer system …

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Fabrication, Characterization And Properties Of Hiercchically Ordered Nanocomposites, Avinash Dundigalla Jan 2006

Fabrication, Characterization And Properties Of Hiercchically Ordered Nanocomposites, Avinash Dundigalla

LSU Doctoral Dissertations

The objectives of this research are to study the structure, morphology and properties of poly(ethylene-oxide) (PEO)-clay nanocomposites using various imaging techniques. Optical Microscopy, Scanning Electron Microscopy, Environmental Scanning Electron Microscopy and Atomic Force Microscopy are used to image structures on all length scales. Complementary scattering experiments are discussed along with preliminary differential scanning calorimetry and Fourier Transform Infrared spectroscopy results. In particular we investigated the multilayered structures of PEO-Laponite and PEO-Montmorillonite multilayered films made from solution. The shear orientation of a polymer-clay network in solution combined with simultaneous solvent evaporation leads to supramolecular multilayer formation in the film. The resulting …

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The Role Of Technology In The Interactions Between Secondary School Library Media Specialists And Teachers, Shirley Benson Mcdonald Jan 2006

The Role Of Technology In The Interactions Between Secondary School Library Media Specialists And Teachers, Shirley Benson Mcdonald

LSU Doctoral Dissertations

Statewide studies of school library media centers in at least sixteen states (other than Louisiana) indicate that effective school library media center programs have a positive impact on student achievement. According to these studies, effective school library media centers have: (a) a qualified library media specialist, (b) adequate support staff, (c) current and large collections, (d) access to information technology that is integrated into the curriculum, and (e) time for collaboration with the faculty. This study was developed to explore the role of technology in the collaborations between school library media specialists and teachers. Data revealed that interactions between school …

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Limit Theorems For Weighted Stochastic Systems Of Interacting Particles, Jie Wu Jan 2006

Limit Theorems For Weighted Stochastic Systems Of Interacting Particles, Jie Wu

LSU Doctoral Dissertations

The goal of this dissertation is to (a) establish the weak convergence of empirical measures formed by a system of stochastic differential equations, and (b) prove a comparison result and compactness of support property for the limit measure. The stochastic system of size n has coefficients that depend on the empirical measure determined by the system. The weights for the empirical measure are determined by a further n-system of stochastic equations. There is a random choice among N types of weights. The existence and uniqueness of solutions of the interacting system, weak convergence of the empirical measures, and the identification …

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Liminality In Gender, Race, And Nation In Les Quarteronnes De La Nouvelle-Orléans By Sidonie De La Houssaye, Christine Koch Harris Jan 2006

Liminality In Gender, Race, And Nation In Les Quarteronnes De La Nouvelle-Orléans By Sidonie De La Houssaye, Christine Koch Harris

LSU Doctoral Dissertations

This project examines themes of race, gender, and nation in a series of four novels by nineteenth-century Louisiana author Sidonie de la Houssaye. The series, called Les Quarteronnes de la Nouvelle-Orléans (The Quadroons of New Orleans), is based on the system of plaçage. Plaçage, a system of concubinage in which white men took women of mixed racial heritage (such as “quadroons”) as mistresses, becomes a source of conflict and contradiction in the series. The author sees plaçage as a tragic necessity for some educated and morally “upright” quarteronnes. For others, those quarteronnes depicted as libidinous and avaricious, it is a …

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The Musical Journey Of Opera Singer Lenora Lafayette: A Louisiana Treasure, Kyla Dean Pitcher Jan 2006

The Musical Journey Of Opera Singer Lenora Lafayette: A Louisiana Treasure, Kyla Dean Pitcher

LSU Doctoral Dissertations

Lenora Lafayette (1926-1975) was an African-American opera singer who developed her professional path while facing tremendous racial, cultural, and economic barriers. She was a Louisiana native with great vocal potential who attempted to enroll at Louisiana State University in Baton Rouge, but was denied admission due to segregation. Lenora attended The Juilliard School as an alternative and earned scholarships that covered her tuition for an entire year. She studied with the prestigious faculty member Dusolina Giannini and developed her talent to the degree that she was able to win a John Hay Whitney Fellowship for study abroad. She traveled to …

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Self-Assembly And Its Inhibition In Bolaform Amphiphilic Dendrimers, Jirun Sun Jan 2006

Self-Assembly And Its Inhibition In Bolaform Amphiphilic Dendrimers, Jirun Sun

LSU Doctoral Dissertations

Self-assembly is scientifically interesting, technologically important, and sometimes life-threatening. A striking example: Alzheimer’s disease is caused by the self-assembly of the â-amyloid fragment of amyloid precursor protein. Such natural amphiphiles normally are very expensive and complicated to isolate. Synthetic mimics that are much cheaper and easier to prepare can facilitate the development of efficient characterization methods, even as they suggest new materials science applications. Two-directional arborols are synthetic bolaform amphiphilic dendrimers. They dissolve in hot water and form reversible gels at room temperature. Bundles of fibrils, which are made by self-assembly of arborols, are found in the gels. The properties …

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Instantaneously Trained Neural Networks With Complex And Quaternion Inputs, Adityan V. Rishiyur Jan 2006

Instantaneously Trained Neural Networks With Complex And Quaternion Inputs, Adityan V. Rishiyur

LSU Master's Theses

Neural network architectures such as backpropagation networks, perceptrons or generalized Hopfield networks can handle complex inputs but they require a large amount of time and resources for the training process. This thesis investigates instantaneously trained feedforward neural networks that can handle complex and quaternion inputs. The performance of the basic algorithm has been analyzed and shown how it provides a plausible model of human perception and understanding of images. The motivation for studying quaternion inputs is their use in representing spatial rotations that find applications in computer graphics, robotics, global navigation, computer vision and the spatial orientation of instruments. The …

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A Nonlocal Model For Coupled Damage-Plasticity Incorporating Gradients Of Internal State Variables At Multiscales, Robert J. Dorgan Jan 2006

A Nonlocal Model For Coupled Damage-Plasticity Incorporating Gradients Of Internal State Variables At Multiscales, Robert J. Dorgan

LSU Doctoral Dissertations

The thermodynamically consistent formulation and the subsequent numerical implementation of a gradient enhanced continuum coupled damage-plasticity model as a constitutive framework to model ill-posed localization problems is presented. By the introduction of "nonlocal," gradient-enhanced measures in the plasticity potential function and yield criterion and in the damage potential function and damage criterion, the proposed model introduces microstructural characteristic material length scales which allows the size of localized zones to be predicted based on material constants, as opposed to local models where the loss of ellipticity causes the localized zones to be mesh dependent.
The gradient model proposed introduces non-linear functions …

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The Cost And Availability Of The Thrifty Food Plan In Southeast Louisiana, Blair Suzanne Buras Jan 2006

The Cost And Availability Of The Thrifty Food Plan In Southeast Louisiana, Blair Suzanne Buras

LSU Master's Theses

Low-income individuals in Southeast Louisiana consume poor quality diets and have high rates of nutrition-related health problems such as cardiovascular disease, type 2 diabetes mellitus, and obesity. The United States Department of Agriculture created the Thrifty Food Plan to help food stamp recipients consume a minimal cost, nutritious diet. It is unknown whether the food lists designed to support the Thrifty Food Plan are affordable and available to the food stamp reliant population in Southeast Louisiana. In 29 supermarkets and large grocery stores located in East Baton Rouge Parish and seven surrounding parishes, the cost and availability of two weekly …

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Information Analysis Of Dna Sequences, Riyazuddin Mohammed Jan 2006

Information Analysis Of Dna Sequences, Riyazuddin Mohammed

LSU Master's Theses

The problem of differentiating the informational content of coding (exons) and non-coding (introns) regions of a DNA sequence is one of the central problems of genomics. The introns are estimated to be nearly 95% of the DNA and since they do not seem to participate in the process of transcription of amino-acids, they have been termed “junk DNA.” Although it is believed that the non-coding regions in genomes have no role in cell growth and evolution, demonstration that these regions carry useful information would tend to falsify this belief. In this thesis, we consider entropy as a measure of information …

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Knowledge Representation Acquired In A Dynamic Process Control Task, Robert Prattini Jan 2006

Knowledge Representation Acquired In A Dynamic Process Control Task, Robert Prattini

LSU Master's Theses

The dissociation between explicit and implicit knowledge has been shown in a number of previous studies utilizing the process control task, where participants would learn to control the system well, but not be able to verbally articulate their knowledge (Berry & Broadbent, 1984; Berry & Broadbent, 1988; Mathews, Buss, Stanley, Blanchard-Fields, Cho, & Druhan, 1989; Roussel, 1999; Sun & Mathews, 2005). This study attempts to advance this basic research in the area of implicit learning by examining the type of mental knowledge representation acquired in implicitly learned tasks, and also assess the transfer of that knowledge to conceptually similar tasks. …

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Say It Loud! I'M Black And I'M Proud!: A Study Of Successful Black Female Students Educated In An Urban Middle School, Menthia P. Clark Jan 2006

Say It Loud! I'M Black And I'M Proud!: A Study Of Successful Black Female Students Educated In An Urban Middle School, Menthia P. Clark

LSU Doctoral Dissertations

"Acting White" (Fordham & Ogbu, 1986) is a common term among researchers who study academic achievement and racial identity among minority students which signifies the tension some academically successful minority students experience as they excel in school. Black students who contend with such tension may be teased, alienated, or rejected by their peers who view academic achievement as characteristic of White people. In order to avoid the accusation of "acting White," many Black students underachieve, conceal their academic talents, or make no efforts to pursue academic goals. For Black female high-achieving students, "acting White" is laden with gender-specific strategies of …

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A Stochastic Mesoscopic Cell-Transmission Model For Operational Analysis Of Large-Scale Transportation Networks, Ciprian Danut Alecsandru Jan 2006

A Stochastic Mesoscopic Cell-Transmission Model For Operational Analysis Of Large-Scale Transportation Networks, Ciprian Danut Alecsandru

LSU Doctoral Dissertations

The cell transmission model (CTM), developed by Daganzo in 1994 was not fully exploited as an operations model for analysis of large-scale traffic networks. Because of its macroscopic / mesoscopic features, CTM offers calibration and computational advantages over microscopic models. This study presents a series of enhancements to the original form of CTM. These enhancements show potential to increase the model’s accuracy and realism of traffic flow representation. For example, topological enhancements and modifications to the flow advancing equation are introduced to allow variable cell lengths and non-discrete movements of vehicles between cells. In addition, implementation of lane-changing behavioral logics …

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The Paley-Wiener Theorem And The Local Huygens' Principle For Compact Symmetric Spaces: The Even Multiplicity Case, Thomas Branson, Gestur Ólafsson, Angela Pasquale Dec 2005

The Paley-Wiener Theorem And The Local Huygens' Principle For Compact Symmetric Spaces: The Even Multiplicity Case, Thomas Branson, Gestur Ólafsson, Angela Pasquale

Faculty Publications

We prove a Paley-Wiener theorem for a class of symmetric spaces of the compact type, in which all root multiplicities are even. This theorem characterizes functions of small support in terms of holomorphic extendability and exponential type of their (discrete) Fourier transforms. We also provide three independent new proofs of the strong Huygens' principle for a suitable constant shift of the wave equation on odd-dimensional spaces from our class. © 2005 Royal Netherlands Academy of Arts and Sciences.

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The Paley-Wiener Theorem For The Jacobi Transform And The Local Huygens' Principle For Root Systems With Even Multiplicities, Thomas Branson, Gestur Ólafsson, Angela Pasquale Dec 2005

The Paley-Wiener Theorem For The Jacobi Transform And The Local Huygens' Principle For Root Systems With Even Multiplicities, Thomas Branson, Gestur Ólafsson, Angela Pasquale

Faculty Publications

This note is a continuation of the previous paper by same authors [this issue]. Its purpose is to extend the results to the context of root systems with even multiplicities. Under the even multiplicity assumption, we prove a local Paley-Wiener theorem for the Jacobi transform and the strong Huygens' principle for the wave equation associated with the modified compact Laplace operator. © 2005 Royal Netherlands Academy of Arts and Sciences.

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Thermodynamic Consistency Of The Dynamical Mean-Field Theory Of The Double-Exchange Model, Randy S. Fishman, Juana Moreno, Thomas Maier, Mark Jarrell Dec 2005

Thermodynamic Consistency Of The Dynamical Mean-Field Theory Of The Double-Exchange Model, Randy S. Fishman, Juana Moreno, Thomas Maier, Mark Jarrell

Faculty Publications

We find that standard diagrammatic perturbation theory does not exist for the dynamical mean-field theory of the double-exchange model because the vertex function cannot be expanded in terms of the bare vertex function and the full Green's function G (i νl) αα. Nevertheless, a functional Φ satisfying the condition δΦ δG (i νn) αα =Σ (i νn) αα can be constructed because the curl of the self-energy with respect to the Green's function vanishes: δΣ (i νn) αα δG (i νl) ββ -δΣ (i νl) ββ δG (i νn) αα =0. The connection between the functional Φ and the free …

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Transport Rate-Based Model For Overland Flow And Solute Transport: Parameter Estimation And Process Simulation, Zhi Qiang Deng, João L.M.P. De Lima, Vijay P. Singh Dec 2005

Transport Rate-Based Model For Overland Flow And Solute Transport: Parameter Estimation And Process Simulation, Zhi Qiang Deng, João L.M.P. De Lima, Vijay P. Singh

Faculty Publications

A one-dimensional mathematical model, termed a transport rate-based model, is developed for solute transport over infiltrating soil slopes under constant rainfall and declining sources. The model is comprised of (1) the kinematic-wave equation for overland flow, (2) a transport rate-based advection equation for overland solute transport, (3) a moment-based method for estimation of the parameters involved in the flow and solute transport equations, and (4) a semi-Lagrangian algorithm for numerical solution of the solute transport equation. Data from a single soil flume experiment under constant rainfall established the proof-of-concept for this new model. Sodium chloride was applied to the soil …

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