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A Generalized Single-Layer Rice Drying Model And Deep Bed Simulation., Athapol Noomhorm Jan 1985

A Generalized Single-Layer Rice Drying Model And Deep Bed Simulation., Athapol Noomhorm

LSU Historical Dissertations and Theses

An experimental dryer with a data acquisition system to analyze single-layer rice drying was built and tested. Data of moisture content and time were collected for long grain Labonnet variety rough rice representing on-farm conditions (35(DEGREES)C to 55(DEGREES)C; 30% to 70% RH; 0.13 to 0.33 m/s drying air velocity) and commercial conditions (55(DEGREES)C to 75(DEGREES)C; 30%; to 70% RH; 0.63 m/s drying air velocity). The initial moisture levels of the rice at these conditions were 28, 33 and 38% (dry basis). Four different drying models were evaluated for the single-layer rice drying data. The first two were based on the …


Soot Formation During Pyrolysis Of Aromatic Hydrocarbons (Modeling, Shock-Tube, Acetylene, Butadiene)., David Warren Clary Jan 1985

Soot Formation During Pyrolysis Of Aromatic Hydrocarbons (Modeling, Shock-Tube, Acetylene, Butadiene)., David Warren Clary

LSU Historical Dissertations and Theses

A study combining experimental, empirical modeling, and detailed modeling techniques has been conducted to develop a better understanding of the chemical reactions involved in soot formation during the high-temperature pyrolysis of aromatic and other unsaturated hydrocarbons. The experiments were performed behind reflected shock waves in a conventional shock-tube with soot formation monitored via attenuation of a laser beam at 633nm. Soot-formation measurements were conducted with toluene-argon and benzene-argon mixtures. Detailed kinetic models of soot formation were developed for pyrolyzing acetylene, butadiene, ethylene and benzene. The computational results indicate the importance of compact, fused polycyclic aromatic hydrocarbons as soot intermediates and …


Development Of A Computer-Assisted Instruction Courseware Package In Statistics And A Comparative Analysis Of Three Management Strategies For This Courseware., Preston Dinkins Jan 1985

Development Of A Computer-Assisted Instruction Courseware Package In Statistics And A Comparative Analysis Of Three Management Strategies For This Courseware., Preston Dinkins

LSU Historical Dissertations and Theses

The purpose of this study was to develop and evaluate a tutorial computer-assisted instruction (CAI) lesson teaching the normal distribution and standard scores. Instruction on the normal curve, and unit-normal curve, z-scores, areas under the normal curve, and standard scores was given in this study. This CAI courseware was created in order to teach or review these concepts to graduate students in education. An evaluation of this CAI lesson was conducted. It consisted of a small scale pilot test, and a 2 x 3 factorial design experiment. The pilot test study was conducted so that reaction data to this software …


An Engineering Approach To Model-Order Reduction And Its Application To Controller Design., Alexius Ogbusua Kalu Jan 1985

An Engineering Approach To Model-Order Reduction And Its Application To Controller Design., Alexius Ogbusua Kalu

LSU Historical Dissertations and Theses

A new method of approximating a high-order system by a lower-order model in the frequency domain is developed. A reduced-order model of a transfer function obtained by the new method is compared with a reduced-order model obtained by another existing method to illustrate the power of the technique. Furthermore the approximant constructed by this new method is used to design a control system, which is applicable to the plant, to show its usefulness. The thesis also suggests some mathematical criteria for selecting the order of the approximant. This technique is particularly attractive because of its simplicity and versatility. Furthermore, it …


Effects Of An Oscillating Inclined Blade On Soil Break-Up And Energy Requirements (Draft, Torque, Gmd, Tractor)., Whoa Seug Kang Jan 1985

Effects Of An Oscillating Inclined Blade On Soil Break-Up And Energy Requirements (Draft, Torque, Gmd, Tractor)., Whoa Seug Kang

LSU Historical Dissertations and Theses

A mechanically balanced oscillating inclined digger blade mechanism was designed and constructed to evaluate the effects of vibration on soil break-up and power requirements. Changing the levels of amplitude, frequency, and forward travel speed, twenty-seven combinations of such parameters were tested in two different soil conditions. Soil conditions for this study are based on a silt loam soil with moisture contents of 16 and 15 percent (w.b.), dry densities of 1440 and 1310 Kg/m('3), and cone indices of 0.82 and 0.41 MPa for hard and soft soil conditions, respectively. The variables measured were geometric mean diameter (GMD) and its log …


A Probabilistic Development Of Nutrient Criteria For Louisiana Rivers And Streams (Eutrophication, Dissoved Oxygen, Algae, Standards, Nitrogen)., Constantine Evan Mericas Jan 1985

A Probabilistic Development Of Nutrient Criteria For Louisiana Rivers And Streams (Eutrophication, Dissoved Oxygen, Algae, Standards, Nitrogen)., Constantine Evan Mericas

LSU Historical Dissertations and Theses

The objective of this investigation was the development of quantitative criteria based on the estimation of maximum levels of oxygen demand associated with specific levels of nutrients in algal dominated streams. 1582 intensive survey records were obtained from the Louisiana Department of Environmental Quality (LA DEQ). A sub-set of 225 records was defined by a minimum chlorophyll a of 10.0 ug/l and influential observation analysis to restrict the data to streams where algal processes were likely to be dominant. Nitrogen, as measured by total Kjeldahl nitrogen (TKN) was identified as the principle nutrient of concern in the prediction of algal …


Combustion Of Dichloromethane In A High Temperature Flat Flame (Incineration, Hazardous Waste, Pics)., Dwight William Senser Jan 1985

Combustion Of Dichloromethane In A High Temperature Flat Flame (Incineration, Hazardous Waste, Pics)., Dwight William Senser

LSU Historical Dissertations and Theses

A series of premixed, laminar, one-dimensional CH(,2)Cl(,2)/CH(,4)/air flat flames have been studied to develop a better understanding of the combustion characteristics of toxic chlorinated hydrocarbons. A facility capable of sustained operation in the highly corrosive environment associated with chlorinated hydrocarbon combustion was developed for this study. This facility and the gas chromatographic procedures for the analysis of C(,1) and C(,2) hydrocarbons and chlorinated hydrocarbons in combustion products are described in detail. Stable species mole fractions and temperature profiles for a series of six flames were obtained at 750 Torr with uncooled quartz microprobes and fine gage thermocouples. Equivalence ratios were …


Production And Nitrogen Dynamics Of A Vallisneria Americana Grass Bed In Lake Pontchartrain, Louisiana (Nitrogen Cycle, Modeling, Seagrasses, Decomposition Phenology, Vallisneria-Celery Grass-Eelgrass, Environmental Factors)., Diana Lee Steller Jan 1985

Production And Nitrogen Dynamics Of A Vallisneria Americana Grass Bed In Lake Pontchartrain, Louisiana (Nitrogen Cycle, Modeling, Seagrasses, Decomposition Phenology, Vallisneria-Celery Grass-Eelgrass, Environmental Factors)., Diana Lee Steller

LSU Historical Dissertations and Theses

Vallisneria americana grass beds of Lake Pontchartrain contribute approximately 200 g dry weight/m('2)/yr primary production, a continuous release of detrital material, and rapid nutrient recycling. A harvest method was used to estimate production. The addition of litterfall to harvest production raised annual production estimates by up to 28%. When litterfall was corrected for decomposition, the production estimates were raised by up to 85% over harvest estimates alone. Litterfall and decomposition increased toward shore and occurred throughout the year providing a continuous supply of energy and nutrients. Grass bed production varied along the coastline and was greatest at mid-depths. Values of …


Aqueous Phase Oxidation Of Organics (Wet-Air, Vapor-Liquid Equilibrium, Synergism, Free Radical, Xylene, Phenol)., Richard Scott Willms Jan 1985

Aqueous Phase Oxidation Of Organics (Wet-Air, Vapor-Liquid Equilibrium, Synergism, Free Radical, Xylene, Phenol)., Richard Scott Willms

LSU Historical Dissertations and Theses

Fundamental disappearance kinetics parameters have been obtained for four compounds individually subjected to aqueous phase oxidation. These four compounds are m-xylene, phenol, tetrachloroethylene, and malathion. Concentration histories were obtained using a one liter "sampled-batch" reactor. Reaction conditions ranged from 114-290 (DEGREES)C and 1000-2500 psi air. A kinetics model incorporating vapor-liquid equilibrium effects was developed and used to determine reaction rate constants. The reactions were found to be first order in organic and 1/2 order in oxygen. Induction periods were observed for m-xylene and phenol. The durations of these periods were found to be inversely proportional to oxygen concentration. Activation energies …


Metal Ion, Protein, Phytic Acid Interactions., Elaine Thompson Champagne Jan 1985

Metal Ion, Protein, Phytic Acid Interactions., Elaine Thompson Champagne

LSU Historical Dissertations and Theses

Insight into the mineral, protein, phytate relationships in rice bran was gained by examining the solubility behavior of these components. Solubility profiles of the phosphorus and nitrogen components as a function of pH did not correspond, except in the pH 1.0-2.0 range. This is evidence that association between protein and phytate only occurred in this low pH range. Potassium, magnesium, and calcium solubilities as a function of pH corresponded to those of the phytic acid salts of these minerals. Soluble magnesium and potassium phytates were isolated on Sephadex G-25-50 and identified by ICP, confirming their presence in rice bran. The …


The Population Ecology And Nutrient Transport Of Gulf Menhaden In Fourleague Bay, Louisiana (Mortality, Growth, Feeding, Production, Migration)., Linda Ann Deegan Jan 1985

The Population Ecology And Nutrient Transport Of Gulf Menhaden In Fourleague Bay, Louisiana (Mortality, Growth, Feeding, Production, Migration)., Linda Ann Deegan

LSU Historical Dissertations and Theses

An ecological study of the young-of-the-year of three year-classes of gulf menhaden (Brevoortia patronus) was conducted from July 1981 to December 1983 in Fourleague Bay, Louisiana. This study documented gulf menhaden population ecology and the importance of gulf menhaden in the nutrient and energy balance of estuaries. Young-of-the-year gulf menhaden immigrated in winter and moved to tidal creeks and ponds, where they remained until midsummer. They then moved into open bays, where they remained until the fall. This migration pattern coincides with sequentially available, but spatially separate, productivity peaks in marsh and open bays. In the fall, they emigrated to …


Studies Of Grain Boundary Structure And Annealing Behavior In Nickel Using Transmission Electron Microscopy (Tem, Dislocation)., An-Chich Chou Han Jan 1985

Studies Of Grain Boundary Structure And Annealing Behavior In Nickel Using Transmission Electron Microscopy (Tem, Dislocation)., An-Chich Chou Han

LSU Historical Dissertations and Theses

Transmission electron microscopy has been used to study grain boundary structure and dislocation reactions in annealed pure nickel sheets. In slightly annealed nickel, the dislocation content and distribution in grain boundaries were found to be random. After annealing at 800(DEGREES)C, a temperature within the recovery and recrystallization stage, the majority of grain boundaries contained periodic arrays of dislocations. The hexagonal dislocation networks with Burgers vectors of the type of a/6 were found in a large number of twin boundaries. The origin and the formation mechanisms of this configuration are discussed. The incorporation of absorbed lattice dislocations in the boundary during …


Part I: Comparison Of An "As-Needed" And "Full-Season" Insecticide Application Schedule For Control Of Cotton Insects In Northeast Louisiana. Part Ii: The Utilization Of Vegetable Oil As A Carrier For Ultra-Low-Volume Aerial Sprays Applied For Cotton Insect Control., Henry Russ Mitchell Jan 1985

Part I: Comparison Of An "As-Needed" And "Full-Season" Insecticide Application Schedule For Control Of Cotton Insects In Northeast Louisiana. Part Ii: The Utilization Of Vegetable Oil As A Carrier For Ultra-Low-Volume Aerial Sprays Applied For Cotton Insect Control., Henry Russ Mitchell

LSU Historical Dissertations and Theses

A small plot study to determine the effects of a "as-needed" and "full-season" insecticide regime on the major arthropods, growth, and yield of cotton was conducted over a three year period (1982-1984). In the "as-needed" regime, acephate (4 g/kg of seed) was applied as a seed treatment at planting and application of foliar insecticides were initiated when cotton insect pests reached the threshold level. In the "full-season" regime, aldicarb (0.05 kg/ha) was applied in-furrow at planting and application of foliar insecticides were initiated when squares reached 1/3 grown and continued on a six to seven day schedule throughout the season. …


College Cheaters In An Educational Intervention Program: Their Characteristics, Self-Perceptions, And Summative Evaluation Responses (Moral Reasoning, Judgment, Locus Of Control, Developmental Tasks, Values, Self-Actualization)., Nancy Irle Mathews Jan 1985

College Cheaters In An Educational Intervention Program: Their Characteristics, Self-Perceptions, And Summative Evaluation Responses (Moral Reasoning, Judgment, Locus Of Control, Developmental Tasks, Values, Self-Actualization)., Nancy Irle Mathews

LSU Historical Dissertations and Theses

As an alternative to disciplinary suspension, Louisiana State University implemented an educational intervention program for students found guilty of charges of academic dishonesty as defined by the Code of Student Conduct. The purpose of this study was fourfold: (a) to describe the characteristics of 68 cheaters who participated in the intervention programs over four different semesters, (b) to describe the psychosocial and environmental factors that were perceived by identified students as influencing their decisions to cheat, (c) to determine the extent of change in selected psychological measurements of cheaters upon completion of the program, and (d) to describe cheaters' summative …


Cyclometallated Compounds Of Ruthenium(Ii): Characterization, Photophysical And Electrochemical Properties., Patricio Gabriel Reveco Jan 1985

Cyclometallated Compounds Of Ruthenium(Ii): Characterization, Photophysical And Electrochemical Properties., Patricio Gabriel Reveco

LSU Historical Dissertations and Theses

The first examples of ruthenium mixed ligand complexes of the type Ru(bpy)(,2) L ('+), in which bpy = 2,2'-bipyridine and L = the cyclometallating ligands 2-(3'nitrophenyl)pyridine (1), 2-phenylpyridine (2), benzo h quinoline (3), azobenzene (4), and p-dimethylaminoazobenzene (5), have been prepared and characterized. The first use for this type of compound of two-dimensional homo-nuclear decoupled auto-correlated Fourier transform ('1)H NMR (HDCOSY) spectra, have allowed the assignment of all distinguishable aromatic protons in each compound, and have confirmed the cyclometallation of L. The absorption spectrum of each of the complexes contains several low energy bands which are assigned as metal-to-ligand charge-transfer …


A Rhetorical Analysis Of The Political Preaching Of The Reverend Jerry Falwell: The Moral Majority Sermons, 1979 (Electric Church, Demagogue)., Vernon Oliver Ray Jan 1985

A Rhetorical Analysis Of The Political Preaching Of The Reverend Jerry Falwell: The Moral Majority Sermons, 1979 (Electric Church, Demagogue)., Vernon Oliver Ray

LSU Historical Dissertations and Theses

Jerry Falwell has risen in recent years from near obscurity as a Baptist pastor in Lynchburg, Virginia, to national celebrity as the founder and President of Moral Majority, Inc., the front-line political action organization of the new Religious Right. This study discusses (1) Falwell's background and speaker preparation, (2) the historical setting surrounding the recent resurgence of Fundamentalism and its political involvement, (3) Falwell's audiences and occasions, (4) his use of evidence and lines of argument, (5) his style and delivery, and (6) his effectiveness. The study is based on a series of sermons delivered on five consecutive Sundays beginning …


Cenobium 1985, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, P. K. Hendrix, Laura Hokett Jan 1985

Cenobium 1985, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, P. K. Hendrix, Laura Hokett

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.


Lsu General Catalog 1985-1986, Louisiana State University And Agricultural And Mechanical College Jan 1985

Lsu General Catalog 1985-1986, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.


Containment Strategies For Marine Oil Spills In Nearshore Waters., E. H. Owens, H. H. Roberts, S. P. Murray, C. R. Foget Jan 1985

Containment Strategies For Marine Oil Spills In Nearshore Waters., E. H. Owens, H. H. Roberts, S. P. Murray, C. R. Foget

Faculty Publications

No abstract provided.


Dependence Of Fishery Species On Salt Marshes: The Role Of Food And Refuge, Donald F. Boesch, R. Eugune Turner Dec 1984

Dependence Of Fishery Species On Salt Marshes: The Role Of Food And Refuge, Donald F. Boesch, R. Eugune Turner

Faculty Publications

Salt marshes are widely believed to serve as nurseries for many fishes and crustaceans of fishery value as a result of the high production of vascular plant detritus and the protection from predation offered by shallow, spatially complex habitats. Comparisons of the yields of species which reside in salt marsh habitats during critical life history stages (such as penaeid shrimp) with the area of such habitats and their greater densities in flooded marshes and associated tidal creeks support the premise that marshes enhance the yield of such species. A range of evidence, including the amount of detrital export from marshes, …


Louisiana Agriculture Magazine, Fall 1984, Lsu Agricultural Experiment Station Oct 1984

Louisiana Agriculture Magazine, Fall 1984, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.


Louisiana Agriculture Magazine, Summer 1984, Lsu Agricultural Experiment Station Jul 1984

Louisiana Agriculture Magazine, Summer 1984, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.


Louisiana Agriculture Magazine, Spring 1984, Lsu Agricultural Experiment Station Apr 1984

Louisiana Agriculture Magazine, Spring 1984, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.


Hydrocracking Of Model Coal Derived Liquid Components Over A Zeolite Catalyst. (Volumes I And Ii) (Fluorene, Decalin)., William David Constant Jan 1984

Hydrocracking Of Model Coal Derived Liquid Components Over A Zeolite Catalyst. (Volumes I And Ii) (Fluorene, Decalin)., William David Constant

LSU Historical Dissertations and Theses

Hydrocracking of fluorene was investigated over a nickel loaded Y zeolite in a fixed bed flow reactor using decalin as a donor solvent. This system served as a model for typical commercial donor solvent operations in order to develop a representative kinetic model and propose a reaction mechanism for refining of coal derived liquids. After performing a qualitative investigation, base operating conditions of 661(DEGREES)K, 14.8 bar total pressure, 20 weight percent fluorene in decalin and a hydrogen to hydrocarbon ratio of 42 at a space-time of 4.8 seconds were established for the process. For each experimental series, the variable of …


Cenobium 1984, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Marilyn Moore Jan 1984

Cenobium 1984, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Marilyn Moore

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.


Characterization Of Iron-Ruthenium Bimetallic Catalyst Systems (Methanation, Moessbauer, Zeolite)., M. Mehdi Akbarnejad Jan 1984

Characterization Of Iron-Ruthenium Bimetallic Catalyst Systems (Methanation, Moessbauer, Zeolite)., M. Mehdi Akbarnejad

LSU Historical Dissertations and Theses

Due to the potential of iron-ruthenium bimetallic heterogeneous catalysis in a number of high demand, energy related processes, this study was undertaken to synthesis and characterize a series of bimetallic Iron-Ruthenium alloy and clusters. A material science approach was taken which relies on the physical and chemical characterization of catalyst material itself rather than the classical chemical kinetics investigation of the catalytic reaction. Various methods have been employed for the determination of surface and bulk properties of catalysts during dehydration-hydration, and oxidation-reduction treatments. In the case of the bimetallic systems, the use of ('99)Ru and ('57)Fe double labelled Mossbauer experiments …


Progeny Studies And Genotype X Environment Interactions For Yield And Other Characters In Sweet Potatoes, Ipomoea Batatas, L. (Path Analysis, Heritability, Correlations)., Marc J. J Janssens Jan 1984

Progeny Studies And Genotype X Environment Interactions For Yield And Other Characters In Sweet Potatoes, Ipomoea Batatas, L. (Path Analysis, Heritability, Correlations)., Marc J. J Janssens

LSU Historical Dissertations and Theses

A multi-environmental trial was conducted in Rwanda, located in the highlands of Central Africa. The trial consisted of 26 cultivars of sweet potatoes repeated over 11 environments. Genotype X environment (G X E) interactions were highly significant for vine yield, fresh root yield, number of roots, and dry matter yield. Average root weight was not significant for G X E interactions. The G X E variance component was generally more important than the variance component for cultivars. From pathway analysis it was concluded that the G X E effects of dry matter yield were little determined by the G X …


Stewardship Of Creation: Some Implications For Economic Theory And Policy., John Harlan Mcdonald Jan 1984

Stewardship Of Creation: Some Implications For Economic Theory And Policy., John Harlan Mcdonald

LSU Historical Dissertations and Theses

Neoclassical economic theory defines an optimal or efficient allocation of natural resources as one which secures the maximum output of preferred goods and services, or as an allocation in which the resources are used in their highest valued uses. The theory is based on two important normative assumptions: the welfare of the community is an increasing function of the individual's welfare, and an individual is better off in a freely chosen position. These assumptions form a subjective theory of value which locates the source of intrinsic value in the individual's tastes and preferences; value or wealth is whatever satisfies the …


A Regression Model To Measure The Impact Of Actual And Proposed Class Scheduling Policies On Electricity Consumption: A Case Study At Louisiana State University., Enrique Mejorada Jan 1984

A Regression Model To Measure The Impact Of Actual And Proposed Class Scheduling Policies On Electricity Consumption: A Case Study At Louisiana State University., Enrique Mejorada

LSU Historical Dissertations and Theses

Universities have adopted many programs to conserve electricity and counteract its high costs. Electricity can be conserved by adopting a class scheduling policy which schedules a reduced number of classes when the weather is more inclement. A regression model is postulated to measure the impact of the actual class scheduling policy on the 3-hourly electricity consumption at Louisiana State University. This model explicitly considers the effects of students' load, temperature, and humidity, and implicitly considers variables such as electricity prices and implemented electricity conservation programs through dummy variables. Also, two- and three-way interaction effects are considered in this model. Since …


A Time Series Model Of The Controller Functions Of The Human Temperature Regulating System., Mohsen Neghabat Jan 1984

A Time Series Model Of The Controller Functions Of The Human Temperature Regulating System., Mohsen Neghabat

LSU Historical Dissertations and Theses

The objective of this study is to develop time series models of the controller mechanisms of the human temperature regulating system. The controller responses are: changes in metabolic heat production, changes in evaporative heat loss and alterations in the surface blood flow. After evaluating the models developed for the controller mechanisms, the models are validated in the context of a complete simulation model of temperature regulation. Additionally, upper and lower limits are set for the controller responses. Because of the nature of the data available for surface blood flow, this controller response is not represented by time series models. Published …