| Treatability Study Report for In SITU Lead Immobilization Using Phosphate-Based Binders |
MAY 2008 |
|
| Authors:
R. M. Bricka; Anirudha Marwaha; Gene L. Fabian; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
 | Metal contamination in soil is found on 69 percent of identified Department of Defense (DoD) sites with lead being the predominant heavy metal of concern. Solidification/stabilization methods are currently the most used in situ metal-contamination treatment technologies. The treatability study described in this report was designed to develop the information necessary to support the immobilization of lead contaminants in soil by in situ treatment with phosphate-based binders. The potential demonstration ... |
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| Augmenting Cognition: Optimizing Strategic Visual Processing |
30 MAR 2007 |
12 pages |
| Authors:
Stephanie M. Doane; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
 | This report details a research project investigating the acquisition and transfer of strategic stimulus processing skills. Previous research suggests that humans initially acquire processing strategies that reduce the number of redundant comparisons required for accurate visual discriminations. Further, strategies acquired during exposure to one set of visual stimuli can be transferred to a novel stimulus set. Strategies are transferred regardless of their effectiveness, and once acquired, they are difficult to ... |
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| Evolution of the Milieu Approach for Software Development for the Polymorphous Computing Architecture Program |
20 AUG 2004 |
40 pages |
| Authors:
Yoginder S. Dandass; Theodore Bapty; Ben Abbott; Anthony Skjellum; Charles Summey; Hong Yuan; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| A key goal of the DARPA Polymorphous Computing Architectures (PCA) program is to develop reactive closed-loop systems that are capable of being dynamically reconfigured in order to respond to changing mission scenarios. This is in contrast to current systems that are fixed in nature and rely on architecture and software optimizations targeted for specific missions. In order to accomplish this objective, a number of "malleable" processing elements, runtime support software, ... |
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| Individual Differences in Cognitive and Noncognitive Abilities and Team Performance in Dynamic Task Environments |
JUN 2004 |
50 pages |
| Authors:
Stephanie Doane; Gary Bradshaw; J. M. Giesen; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The specific goal of this research was to examine the role of individual differences in cognitive and non-cognitive abilities on individual and team performance in a real-time dynamic team-task environment. The theoretical goal of this research was to improve our understanding of how individual differences relate to team task performance, and to devise objective metrics of team performance. We completed an experiment that required administration of multiple ability tests, developing ... |
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| Measurement and Evaluation of Animated Pedagogical Agents and Their Use in Training |
16 FEB 2004 |
64 pages |
| Authors:
Thomas Hosie; Robert K. Atkinson; Mary Margaret Merrill; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This project entailed a total of six experiments, five conducted in a laboratory and one implemented in a field setting. Across all six experiments, the multimedia computer-based instruction focused on fostering learners' proportional reasoning ability in the context of multi-step word problems. The experiments led to the recognition of four different effects: (a) a voice effect, which suggest that designers of multimedia learning environments should create life-like on-screen agents that ... |
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| Identification, Biochemical Effects and Molecular Determinants of Iron Toxicity in a Military Setting |
02 AUG 2003 |
135 pages |
| Authors:
Nathan H. Johnson; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Hemochromatosis is a disorder that has both a long and short history. While many individuals have been affected over time, it has only been recently that clinical diagnosis has been possible. Hemochromatosis is an autosomal recessive disorder. There are numerous autosomal recessive disorders. Some common examples are cystic fibrosis, sickle cell anemia, and Tay Sachs disease. However, hemochiomatosis is the most common of them all. Up to 0.5 percent of ... |
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| Virtual Environments and Virtual Interfaces for Oceanographic and Meteorological Scientific Visualization |
25 JUN 2003 |
17 pages |
| Authors:
Stephanie Doane; Robert Moorhead; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This research examined potential ways to optimize meteorological and oceanographic (METOC) analyst training and performance during mine counter measure (MCM) operational tasks. Virtual environments (VEs) and virtual interfaces were used as tools that support comprehension of sedimentation transport data. Novel techniques were developed for the visualization of sedimentation transport data. An interface for the visualization was also developed based on a cognitive task analysis of a sedimentation transport expert. In ... |
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| Pathfinder 2: In Situ Design Cost Trades (IDCT) Tool |
MAY 2003 |
255 pages |
| Authors:
Allen G. Greenwood; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The integration of cost evaluations into the design process, i.e., making them in situ, requires a strategic cost evaluation framework. This framework must address three key components: (1) the processes by which design and cost evaluations are performed, (2) the methodologies/technologies (M/T) that are needed in order to effectively carry out these processes, and more specifically, (3) the way cost models are used, reused, and managed. In order to design ... |
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| An Experimental Evaluation of Tutorials in Problem Solving (TiPS): A Remedial Mathematics Tutor |
15 APR 2003 |
|
| Authors:
Robert K. Atkinson; Thomas Hosie; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Our laboratory conducted an experimental evaluation of Tutorials in Problem Solving (TiPS), a computer environment representing a schema-based approach to training arithmetic and problem solving skills in remedial adult populations. Specifically, this project was designed to accomplish several objectives: (1) document the level of instructional adaptation provided by the TiPS system; (2) provide a basic evaluation of the overall TiPS system; (3) determine the amount of instructional time involved with ... |
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| Development of Pilot Production Capabilities for Silicon Carbide Power Devices and Integrated Circuits |
JUN 2002 |
109 pages |
| Authors:
Evan G. Burnett; Jeffrey B. Casady; Michael S. Mazzola; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The effort funded by this contract encompassed two principal |
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| Design and Construction of a Ground-Source Heat Engine |
24 JAN 2002 |
5 pages |
| Authors:
James W. Stevens; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The purpose of this project was to design, construct and test a ground source heat engine that would operate on the temperature difference between the air and the ground to produce a small amount of electrical power. During the design phase, expressions for an optimally matched heat exchanger and thermoelectric module configuration were derived. A prototype was constructed according to the design procedure developed in the first phase of the ... |
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| Discovery of New Drugs That Target Peroxisomal Proliferator-Activated Receptor Gamma (PPAR-Gamma) for the Treatment of Breast Tumors |
SEP 2001 |
|
| Authors:
Dale Nagle; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The major goal of this project is to discover novel chemotherapeutic agents that act on a newly discovered molecular target in breast tumor cells. Recent studies have demonstrated that substances that activate the nuclear hormone receptor/transcription factor, Peroxisome Proliferator-Activated Receptors-gamma (PPAR-gamma) can inhibit growth, cause terminal differentiation, and induce apoptosis in human breast tumor cells. In vitro molecular mechanism-targeted pharmacological assays were developed and used to discover small (drug-like) PPAR-gamma ... |
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| Revolutionary Advances in Ubiquitious, Real-Time Multicomputers and Runtime Environments |
MAY 2001 |
225 pages |
| Authors:
Ashok K. Agrawala; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This work was a grant to enhance the Maruti operating system in several ways, in order to provide Mississippi State with a platform upon which their work on the Real-Time Message Passing Interface could be developed. Key technical achievements: (1) Developed predictable Myrinet communications for use in a real-time NOW; (2) Developed the MSU-Kernel to provide a POSIX OS for real- time NOWs; (3) Developed and implemented an algorithm for ... |
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| CFD Simulation and Visual Analysis of Complex Time-Dependent Flight Vehicle Flow Fields |
31 AUG 2000 |
193 pages |
| Authors:
David L. Marcum; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The primary objective of this research project was to produce a research capability to perform detailed CFD simulations and Scientific Visualization analysis of unsteady, three-dimensional, compressible, viscous flow fields about flight vehicle configurations of interest to the Department of Defense (DoD). The target applications include, but are not limited to, separation of single or multiple stores from aircraft or missiles, launch vehicle or missile booster separation, separation of crew escape ... |
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| Studies in Computer-Based Learning of Math: Using Self-Explanations and Animated Pedagogical Agents |
AUG 2000 |
31 pages |
| Authors:
Robert K. Atkinson; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This study was designed to examine ways of structuring a computer- based learning environment to enhance learning from worked-out examples. In particular, two types of structural manipulations were considered: 1. incorporating an instructional format consisting of instructional explanations and/or self-explanations prompts, a structural manipulation that may have implications for the way in which students study examples; and 2. the use of an animated ... |
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| Knowledge Discovery in an Object-Oriented Oceanographic Database System |
30 SEP 1998 |
14 pages |
| Authors:
Julia Hodges; Susan Bridges; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The rate at which scientific data is collected today has overwhelmed the ability of scientists to store and analyze the data. Current research in knowledge discovery in databases is addressing this problem by developing techniques that can automatically extract knowledge of interest in a particular problem domain. This report describes the results of the second year's efforts in the development of a knowledge discovery system ... |
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| Flight Test Evaluation of a Differential Global Positioning System Sensor in Runway Performance Testing |
04 AUG 1998 |
|
| Authors:
Kenneth Paul Germann; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This study discusses the use of a carrier phase differential global positioning system (DGPS) receiver set in basic takeoff and landing performance flight testing. A technique for using DGPS receivers as theodolites in takeoff and landing performance tests is developed. Both position and velocity data are available from a DGPS receiver. As a result distances can be calculated by differencing the position coordinates or by ... |
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| VHDL Modeling and Benchmarks |
MAR 1998 |
25 pages |
| Authors:
Robert B. Reese; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The MPL developed VHDL models for several commercial SRAMS, PROMS, and PLDs. A VHDL component library for use in simulating an X4000 FPGA implementation was created; a netlist conversion tool is used for converting from a Xilinx LCA netlist format to a VHDL structural model. A SRAM VHDL model generator was created with an associated web browser interface that allowed SRAM VHDL models to be generated via the WWW. A ... |
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| Simulation System for Missile Configurations in a Distributed Heterogeneous Environment |
MAR 97 |
138 pages |
| Authors:
Bharat K. Soni; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| An overall objective of this project is to develop a comprehensive simulation system tailored for missile configurations executable in a distributed heterogeneous environment. The heterogeneous environment will be based on the Network Distributed Global Memory (NDGM) model developed at the Army Research Laboratory (ARL). The integration includes implementation and enhancement of grid generation, flow solution and visualization software modules tailored for missile configurations. The grid generation module will be enhanced ... |
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| Assessing the Functional Level of a Constructed Intertidal Marsh in Mississippi |
SEP 96 |
75 pages |
| Authors:
Mark W. LaSalle; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Detailed assessments of the major biotic components of a 25-acre (10. 12-ha) constructed marsh were undertaken 7 years after it was constructed by grading down uplands. The marsh consisted of low-elevation (Spartina alterniflora), midelevation (Juncus roemerianus), and high-elevation (salt panne) zones with a centrally located creek included to facilitate water exchange across the site. The predominantly sandy texture of the sediments in the constructed marsh (sand >80 percent) was substantially ... |
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| Image Representation, Clustering, and Search in Proximity Graphs and Pathfinder Networks |
15 FEB 96 |
9 pages |
| Authors:
Donald W. Dearholt; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This research extended Pathfinder networks and proximity graphs to new domains, and resulted in new proximity graphs. Pathfinder networks for both attributes and concepts can now be generated from the data used to construct a concept lattice (R. Wille), which can be represented by an overlay of the networks on the lattice. Growing sphere graphs (GSGs) model energy dispersion, and can generate sphere of influence graphs (SIGs), the union of ... |
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| Reestablishment of Bottomland Oak Species in Lower Mississippi Valley Alluvial Soils |
OCT 95 |
53 pages |
| Authors:
Masato Miwa; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The majority acreage of bottomland hardwood forests in the lower Mississippi Valley have been cleared. Several Government programs now encourage reforestation of formerly cleared areas, especially to large seeded tree species. Research is needed to identify optimal planting methodologies to utilize soil and hydrologic gradients and species diversity if bottomland forests are to be economically reforested and managed. Cherrybark oak, Nuttall oak, Shumard oak, and water oak were direct seeded ... |
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| Target Discrimination/Cl1assification Radar |
01 AUG 95 |
152 pages |
| Authors:
B. J. Skinner; Frank Ingels; P. Donohoe; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The purpose of this study was to develop a signal processing scheme that would combine the separate research efforts of low probability of intercept signaling, low altitude low observable target tracking, and non-cooperative target recognition into a single research effort. The end result of this fusion is a new radar design concept designated adaptive FSK/PSK signaling. An adaptive FSK/PSK radar system makes use of matched FSK/PSK signals in conjunction with ... |
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| Target Discrimination/Classification Radar |
01 AUG 95 |
153 pages |
| Authors:
B. J. Skinner; Frank Ingels; P. Donohoe; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Adaptive FSK/PSK is a spectrally agile pulse compression rada signaling scheme that learns target-specific information over time & integrates that information into the design of its radar signal processor in real-time. This use of target-specific information into the real-time transmitter signal design process enhances the return from the target, thus improving the performance of the radar system in both additive noise environments (jamming) & ground clutter limited environments (low altitude ... |
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| Japan-Russia-United States Study Group on Dumped Nuclear Waste in the Sea of Japan, Sea of Okhotsk, and the North Pacific Ocean. Findings and Recommendations 12-13 January 1995 |
13 JAN 95 |
|
| Authors:
MISSISSIPPI STATE UNIV MISSISSIPPI STATE
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| Use of Previous Experience to Estimate Precision Uncertainty of Small Sample Experiments. |
OCT 1993 |
|
| Authors:
W. G. Steele; R. P. Taylor; R. E. Burrell; H. W. Coleman; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The determination of precision uncertainty is described for experiments where the test measurements are obtained from single readings or from a limited number of independent readings. For these cases, the limits of precision uncertainty are best determined from previous experience based on larger sample sizes over the full range of variations that occur for a specific test. This paper describes the appropriate procedures to determine the limits of precision uncertainty ... |
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| Numerical Flow Simulation for Complete Vehicle Configurations |
01 SEP 93 |
74 pages |
| Authors:
Bharat K. Soni; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| In the spirit of the Air Force Office of Scientific Research's (AFOSR) initiative to promote university/industry collaborative research, a collaborative project entitled, Numerical Flow Simulation for Complete Vehicle Configurations has been executed by the National Science Foundation Engineering Research Center for Computational Field Simulation (NSF ERC) at Mississippi State University. The industrial participants include McDonnell Aircraft Company, McDonnell Douglas Research and Development Company and Teledyne Brown Engineering Company. The research ... |
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| Structure-Activity Relationships of Chlorinated Alicyclic Compounds in Catfish |
14 AUG 93 |
3 pages |
| Authors:
Janice E. Chambers; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The goal of the EPSCoR project is to conduct these assays in channel catfish (Ictalurus punctatus) preparations and to make the study a comparative toxicology study. During the first year of the project, Mr Carr has optimized the catfish brain membrane preparation for the assay of 35S-TBPS blinding. He has expanded his background in neurochemistry to learn receptor binding methods and calculation of receptor saturation experiments for the calculation of ... |
|
| Using Markov Chains to Model the Error Behavior of Data Communications Channels |
MAY 93 |
59 pages |
| Authors:
Wayne D. Smith; Karen D. Burns; Jane N. Moorhead; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This report is intended to present a description of the work performed for a project to model data communications error patterns using Markov Models. It details a method for arriving at a final Markov model starting from a collection of channel error statistics, presents a rough Markov Model for a Meteor Burst Channel and lastly presents a theoretical model for a channel that presents a non-specific, 'N-Bits in error over ... |
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| Residual Thermal Stresses in Filamentary Polymer-Matrix Composites Containing an Elastomeric Interphase. |
1993 |
|
| Authors:
Steven D. Gardner; Charles U. Pittman Jr.; Robert M. Hackett; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| A three-phase micromechanical model based on the method of cells is formulated to characterize residual thermal stresses in filamentary composites containing an interphase between the fiber and the matrix. This is the first such study to incorporate a true three-phase version of the method of cells. The model's performance is critically evaluated using data generated from other micromechanical models. Subsequently, a parametric study is performed to quantify the residual stresses ... |
|
| Numerical Solution and Algorithm Analysis for the Unsteady Navier-Stokes Equations on Dynamic Multiblock Grids. Volume 1 |
OCT 92 |
80 pages |
| Authors:
J. M. Janus; A. Arabshahi; D. L. Whitfield; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This is a two volume final report for the research entitled Computation of Hypersonic Interference Flowfields. This volume involves the numerical solution of the three-dimensional unsteady Euler and Navier-Stokes equations for a calorically perfect gas. Volume II involves the development techniques for the solution of three-dimensional inviscid and viscous hypersonic flows in chemical equilibrium. This report addresses the numerical formulation and solution of the equations as well as an analysis ... |
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| Numerical Solution and Algorithm Analysis for the Unsteady Navier-Stokes Equations on Dynamic Multiblock Grids Including Chemical Equilibrium. Volume 2 |
OCT 92 |
|
| Authors:
J. M. Janus; C. F. Cox; A. Arabshahi; P. Cinella; D. L. Whitfield; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This is a two volume final report for the research entitled Computation of Hypersonic Interference Flowfields. Volume I involves the numerical solution of the three-dimensional unsteady Euler and Navier-Stokes equations for a calorically perfect gas. This volume involves the development of techniques for the solution of three-dimensional inviscid and viscous hypersonic flows in chemical equilibrium. This research addresses the numerical formation and solution of the equations as well as an ... |
|
| Application of Microwave Heating Techniques to the Detoxification of contaminated Soils, |
27 APR 1992 |
|
| Authors:
Clifford E. George; Inchul Jun; Jiayi Fan; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Soils contaminated with toluene and p-xylene are readily decontaminated at low temperature without combustion when heated with microwave energy under vacuum conditions. Findings indicated that the solvent removal rate was increased several times if the soil samples contain moisture in the form of 3.00 wt.% water. The combination of moisture and vacuum yielded the best results. This observation can be attributed to the enhancement of microwave absorption by the water ... |
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| Development of Low Thermal Conductivity Pan-Based Carbon Fibers for Solid Rocket Motor Nozzle Applications. |
1990 |
|
| Authors:
R. Clinton; P. C. Pinoli; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Rayon based carbon fabric has been studied to assess reactivity to air oxidation / gasification. Excessive laboratory to laboratory variability of mass loss data by conventional thermal gravimetric analysis mandated a more fundamental approach to determine the sensitivity factors which influence the gasification process. Reaction activation energy and pre-exponential factor derived from the Arrhenius equation was used to assess the role of fabric firing temperature and Na catalytic action. Low ... |
|
| TESTING CARBON FABRIC FOR OXIDATION MASS LOSS. |
1989 |
|
| Authors:
W. B. Hall; L. A. FIKES; P. C. Pinoli; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Rayon based carbon fabric has been studied to assess reactivity to air oxidation/gasification. Excessive laboratory to laboratory variability of mass loss data by conventional thermal gravimetric analysis mandated a more fundamental approach to determine the sensitivity factors which influence the gasification process. Reaction activation energy and pre-exponential factor derived from the Arrhenius equation was used to assess the role of fabric firing temperature and Na catalytic action. Low temperature oxidation ... |
|
| STANDARDIZATION OF THE CARBON-PHENOLIC MATERIALS AND PROCESSES. VOLUME 1: EXPERIMENTAL STUDIES. |
1988 |
|
| Authors:
W. B. Hall; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
|
| STANDARDIZATION OF THE CARBON-PHENOLIC MATERIALS AND PROCESSES. VOLUME 2: TEST METHODS AND SPECIFICATIONS. |
1988 |
|
| Authors:
W. B. Hall; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
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| Antifungal Agents from Tropical Plants of the Family Compositae |
29 OCT 87 |
|
| Authors:
D. H. Miles; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Studies have been made to determine the antifungal activity of the whole dried plants of Wedelia biflora (orginally identified as Wedelia urticifolia), Eupatorium odoratum, and Pluchea indica which are indigenous to Thailand, (2) screen other genera and species of Compositae which grow in Thailand, Mississippi, and Central and South America, (3) isolate and identify the structure of the natural products with antifungal activity, (4) provide new routes for new chemistry ... |
|
| A Discrete Element Prediction Approach for Turbulent Flow Over Rough Surfaces, |
AUG 1984 |
|
| Authors:
R. P. Taylor; H. W. Coleman; B. K. Hodge; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| A discrete element model for turbulent flow over rough surfaces has been rigorously derived from basic principles. This model includes surface roughness effects as a constitutent part of the partial differential equations which describe momentum and energy transport in turbulent flows. The model includes the necessary empirical information on the interaction between the roughness elements and the flow around and between the elements in a general way which does not ... |
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| Computational Problems on Composite Grids |
JUN 1984 |
|
| Authors:
C. W. Mastin; H. V. McConnaughey; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
|
| Economics of Producing and Marketing Farm-Raised Catfish, |
OCT 1983 |
|
| Authors:
J. G. Dillard; J. E. Waldrop; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This paper presents economic data concerning production and marketing of farm-raised catfish in the Delta of Mississippi. No attempt is made to assess the economics of producing catfish in dredged material containment sites; however, any new production from containment sites must compete in the long run with the rapidly expanding production and marketing systems described. Costs of production of farm-raised catfish, f.o.b. processing plant, were calculated to range between 58.7 ... |
|
| Biochemical Studies on the Initiation of Odor Sensing |
JUN 1983 |
|
| Authors:
Robert B. Koch; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The overall purpose of this project was to investigate the basic biochemical events which are responsible for the initiation of the process of odor sensing, in an attempt to understand our ability to sense and identify an infinite number of odorous compounds. It has been observed that even newly synthesized organic compounds (with sufficient volatility at room temperature) can be detected by the sense of smell. This fast has led ... |
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| Innovative Roadway Design for Recreation Areas |
FEB 1982 |
|
| Authors:
James W. Epps; Marion W. Corey; M. John Cullinane; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Access and circulation roads are estimated to contribute approximately 60% of the costs associated with recreation area development. The planning and design of recreational area roads may be viewed as a three-phase process involving: (1) routing of the traffic flow based on destinational analysis; (2) geometric design of the roadway system; and (3) design of appropriate pavement structures. The accomplishment of each of these phases has depended heavily on traditional ... |
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| The Generation of Three-Dimensional Body-Fitted Coordinate Systems for Viscous Flow Problems |
JUL 1981 |
|
| Authors:
Z. U. A. Warsi; C. W. Mastin; J. F. Thompson; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Analytical development of a set of second order elliptic partial differential equations for the generation of three-dimensional curvilinear coordinates is reported with the generic equations as the Beltrami equations in the surface coordinates. Numerical computation with the aircraft fuselage as the inner body is in progress, with the proposed equations as the generating equations. (Author) |
|
| The Singularity Expansion Method Applied to Perpendicular Crossed Wires Over an Imperfect Ground Plane. A Sommerfeld Integral Formulation. |
JAN 1980 |
|
| Authors:
Terry T. Crow; Jhi-Chung Kuo; Clayborne D. Taylor; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The singularity expansion method (SEM) has been applied to determine natural resonances of a horizontal wire and perpendicular crossed wires oriented over an imperfect ground plane. In order to account for the imperfect conductivity of the ground, the Sommerfeld formulation is used and a theoretical-numerical solution obtained. Sample results are presented for both the frequency domain and the SEM solutions. (Author) |
|
| Carolina Bays on the Eastern Shore of Virginia |
MAY 1979 |
|
| Authors:
D. J. Bliley; D. E. Pettry; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| Carolina bays were analyzed on the Eastern Shore of Virginia utilizing infrared imagery and pedologic techniques. Over 160 bays were delineated thus indicating they are major land-forms in the area. Bays differed from those reported in other regions by being less elliptical, more westerly oriented, and lacking well-developed rims in any specific quadrant. Bay location and size are apparently controlled by landscape and sandy parent materials as evidenced by association ... |
|
| Development of Partial Channel Flow for Arbitrary Input Velocity Distributions Using Boundary-Fitted Coordinate Systems. |
APR 1979 |
|
| Authors:
Leslie R. Hester; Joe F. Thompson; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This report summarizes the results of the attempted solution of the class of problems associated with partial channel flows using a numerical technique of boundary-fitted coordinate systems. (Author) |
|
| Development of a Chemical Method for Detecting Petrogenic Hydrocarbons in the Presence of Biogenic Hydrocarbons Down to the 5 PPB Level. |
FEB 1979 |
|
| Authors:
Lewis Raymond Brown; James R. Heitz; D. Howard Miles; C. Douglas Minchew; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The purpose of this project was to develop a chemical method for detecting petrogenic hydrocarbons in the presence of biogenic hydrocarbons at levels below those causing biological harm. The method developed involves use of high pressure liquid chromatograph using chloroform as the solvent and measuring fluorescence in the range of 418 nm after excitation at 403 nm. The method is capable of detecting petroleum hydrocarbons in the presence of overwhelming ... |
|
| Evaluation of the Usefulness of Biological Indicators for Detecting Petroleum Hydrocarbons in the Water Column. |
FEB 1979 |
|
| Authors:
Lewis Raymond Brown; C. Douglas Minchew; Melford R. Smith; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| The objective of this report was to determine the utility of bio-accumulators in a line monitoring program and in assessing an oil spill cleanup by examining data obtained from the exposure of select marine organisms to crude oils in laboratory and field studies designed to simulate real world conditions. Oysters, mussels, crabs, and marshgrass were used in the laboratory studies and were subjected to oil in flow-through fiberglass tanks. Field ... |
|
| The Analysis of Sediment Samples for Hydrocarbons. |
30 OCT 1978 |
|
| Authors:
Lewis Raymond Brown; Charles Douglas Minchew; MISSISSIPPI STATE UNIV MISSISSIPPI STATE
|
| This document is a report on the hydrocarbon content of 1380 individual surficial samples obtained from areas in the vicinity of three proposed Deep Water Port (DWP) Sites in the Gulf of Mexico during six cruises taken between 1975 and 1978. The samples were analyzed using 2 different LC-fluorescent methods, one of which was selective for petrogenic hydrocarbons and one of which detected both petrogenic and biogenic hydrocarbons. Additionally, nutrient ... |
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Reports by Corporate Author
