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A Comparison Of Louisiana Secondary Career And Technical Teachers And Academic Teachers On Learning Type And Perception Of School Climate, Tracy Andries Beard Jan 2002

A Comparison Of Louisiana Secondary Career And Technical Teachers And Academic Teachers On Learning Type And Perception Of School Climate, Tracy Andries Beard

LSU Doctoral Dissertations

The purpose of this study was to investigate the relationship between Louisiana public secondary school teachers' primary learning type and teaching area; and the influence of learning type and teaching area on the teacher's perception of school climate. A total of 293 Louisiana public secondary school teachers participated in the study. An instrument with three parts was used to collect data for this study: demographics, Learning Type Measure and Organizational Health Inventory. Over two-thirds of the respondents were female. Mean age was 43 years and mean teaching experience was 16.41 years. Over three-fourths of respondents were white while over 50% …

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Techniques To Explore Time-Related Correlation In Large Datasets, Sumeet Dua Jan 2002

Techniques To Explore Time-Related Correlation In Large Datasets, Sumeet Dua

LSU Doctoral Dissertations

The next generation of database management and computing systems will be significantly complex with data distributed both in functionality and operation. The complexity arises, at least in part, due to data types involved and types of information request rendered by the database user. Time sequence databases are generated in many practical applications. Detecting similar sequences and subsequences within these databases is an important research area and has generated lot of interest recently. Previous studies in this area have concentrated on calculating similitude between (sub)sequences of equal sizes. The question of unequal sized (sub)sequence comparison to report similitude has been an …

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Infertility And Marital Adjustment: The Influence Of Perception Of Social Support, Privacy Preference And Level Of Depression, Margaret Haviland Maillet Jan 2002

Infertility And Marital Adjustment: The Influence Of Perception Of Social Support, Privacy Preference And Level Of Depression, Margaret Haviland Maillet

LSU Doctoral Dissertations

The purpose of this study was to investigate the influence of perception of social support, privacy preference and level of depression on marital adjustment for couples presenting for infertility treatment. Data was obtained from three infertility clinics in Louisiana from January 1, 2001 through October 1, 2001. Forty-seven couples presenting for infertility treatment completed four questionnaires measuring marital adjustment, perception of social support, privacy preference and level of depression. Demographic and descriptive information was gathered from an information sheet completed by the subjects. Multiple regression analysis was used to determine which, if any, of the independent variables predicted the dependent …

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Mitigation Strategies For The Removal Of Rinsate Organics And Lithium-Based Dyes From Textile Effluents, Kathryn W. Huddle Jan 2002

Mitigation Strategies For The Removal Of Rinsate Organics And Lithium-Based Dyes From Textile Effluents, Kathryn W. Huddle

LSU Master's Theses

Governmental agencies have set regulatory values on the concentration of dye-related color that can be released in textile mill effluents. A proprietary biotic and abiotic technology treatment train was built at a candidate facility in northwestern Georgia to reduce the organic content and dye-related color content in the textile mill’s effluent. Laboratory experimentation began with bench scale 4 L immobilized microbe (IMBR) bioreactor tests to biologically treat primary wastewater streams, namely skein dye and space dye, from this candidate facility. The biological treatment reduced the organic content levels, expressed as chemical oxygen demand (COD), from 3185±30 to 290±20 mg/L (COD …

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Prediction Of Transient Head On Seepage Path Using Boundary Fitted Coordinate (Bfc) System, Sherly Hartono Jan 2002

Prediction Of Transient Head On Seepage Path Using Boundary Fitted Coordinate (Bfc) System, Sherly Hartono

LSU Master's Theses

One of the main causes of levee failure is seepage through levee. This seepage can cause weakening in the levee structure, which in turn can cause sudden levee failure or overtopping of the levee due to levee depression. The purpose of this study is to determine the transient head on the seepage path due to changing water level during flood period. Transient seepage problems are very important as critical condition can occur during this time rather than during steady state condition. Seepage path through a levee can be predicted using the Boundary Fitted Coordinate (BFC) system method. The physical coordinate …

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Hybridization Of Lepomid Sunfishes By Use Of Cryopreservation, C. Brian Whaley Jan 2002

Hybridization Of Lepomid Sunfishes By Use Of Cryopreservation, C. Brian Whaley

LSU Master's Theses

The goal of this project was to integrate cryopreservation into the hybridization of sunfishes. The first objective was to evaluate the conditioning of sunfishes to spawn in cages in warmwater ponds. Bluegill and green sunfish were stocked in cages in ponds heated to 27 C by geothermal water. Fish in heated ponds did not spawn on artificial nests in cages. Fish were also brought into the laboratory for artificial spawning. There were 22 spawns yielding 47 ± 19% (mean ± SD) fertilization. The second objective was to develop methods for the refrigerated and frozen storage of sperm of bluegill Lepomis …

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Feeding Habits Of Blacktip Sharks, Carcharhinus Limbatus, And Atlantic Sharpnose Sharks, Rhizoprionodon Terraenovae, In Louisiana Coastal Waters, Kevin Patrick Barry Jan 2002

Feeding Habits Of Blacktip Sharks, Carcharhinus Limbatus, And Atlantic Sharpnose Sharks, Rhizoprionodon Terraenovae, In Louisiana Coastal Waters, Kevin Patrick Barry

LSU Master's Theses

Little is known regarding the feeding behavior of many shark species. Even less is known about shark feeding habits in Louisiana coastal waters. The stomach contents of gillnet-captured blacktip sharks (n=356), Carcharhinus limbatus, and Atlantic sharpnose sharks (n=55), Rhizoprionodon terraenovae, were examined in this study. Roughly half of the blacktip stomachs (52%) and sharpnose stomachs (45%) contained prey items. The primary prey item in terms of percent number, occurrence, and weight for blacktips and sharpnose was the gulf menhaden, Brevoortia patronus. Both blacktips and sharpnose appear to mainly be piscivores; however, no members of Sciaenidae, the most common family of …

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Characteristic Avifauna Of White-Sand Forests In Northern Peruvian Amazonia, Jose Alvarez Alonso Jan 2002

Characteristic Avifauna Of White-Sand Forests In Northern Peruvian Amazonia, Jose Alvarez Alonso

LSU Master's Theses

Recently, it has been shown that the high species richness in western Amazonia is related to habitat heterogeneity. Some habitats are rapidly disappearing or deteriorating as a result of anthropogenic activities, resulting in loss of species. One such unique habitat is white-sand forest (hereafter WSF), which is patchily distributed and restricted to a few areas in the northern Peruvian Amazonia. Although it is known that these unique forests are rich in endemic plants, very few studies of the fauna or ecology of these habitats have been conducted. I evaluated and determined the species composition of the avifauna of the white-sand …

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The Quality Of Hotel Employee Meals, And Employees' Perception Of The Quality, Eugene Tetteh Gorleku Jan 2002

The Quality Of Hotel Employee Meals, And Employees' Perception Of The Quality, Eugene Tetteh Gorleku

LSU Master's Theses

Growing interest in nutrition and health and the increase in the number of people eating away from home gives power and responsibility to retail foodservice operators. Employees of hotels, restaurants, and other food service establishments are in an important position to influence and impact the diet of the general public since they cook, recommend, and serve customers who visit their institutions. Healthful foods are available, and chefs would benefit from nutritional guidance. The escalating importance of foodservice establishments as the main distribution sites for Americans’ meals highlights the importance of the chef’s role in preparing and providing healthful food consistent …

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From Print To Online World: Examining The Predictors That Influence The Level Of Interactivity Of Newspaper's World Wide Web Pages, Qian Zeng Jan 2002

From Print To Online World: Examining The Predictors That Influence The Level Of Interactivity Of Newspaper's World Wide Web Pages, Qian Zeng

LSU Master's Theses

The purpose of this study is to examine the predictors that influenced the interactivity of U.S. daily newspapers Web sites, namely the market size of newspapers, newspapers ownership, the number of online newspaper technical staff, length of newspaper Web site existence. Whether a national newspaper has different interactive Web site from a local newspaper is also studied. A content analysis of 106 U.S. daily newspapers Web sites found that market size and length of time newspapers having Internet presence sites are correlated to the interactive level of newspapers Web sites. National newspapers are also found having more interactive Web sites …

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Efficient Convolvers Using The Polynomial Residue Number System Technique, Surendar Paruchuri Jan 2002

Efficient Convolvers Using The Polynomial Residue Number System Technique, Surendar Paruchuri

LSU Master's Theses

The problem of computing linear convolution is a very important one because with linear convolution we can mechanize digital filtering. The linear convolution of two N-point sequences can be computed by the cyclic convolution of the following 2N-point sequences. The original sequence padded with N zero’s each. The cyclic convolution of two N-point sequences requires multiplications and additions for its computation. A very efficient way of computing cyclic convolution of two sequences is by using the Polynomial Residue Number System (PRNS) technique. Using this technique the cyclic convolution of two N-point sequences can be computed using only N multiplications instead …

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Implementation Of An Integrated Quality Assurance Program For Ct-Tps Process, Junqing Wu Jan 2002

Implementation Of An Integrated Quality Assurance Program For Ct-Tps Process, Junqing Wu

LSU Master's Theses

Systematic constancy and accuracy of a treatment planning system (TPS) are crucial for the entire radiation treatment planning process (TPP). The Quality Assurance (QA) of individual components does not necessarily lead to satisfying performance of the whole process due to the possible errors introduced by the data transfer process between components and other fluctuations. However, most of current QA for TPS is confined to the treatment planning computers. In this study, a time efficient and integrated CT-TPS QA procedure is presented, which starts at the beginning of the TPS input --- Computer Tomograhpy (CT). The whole QA procedure is based …

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Prediction Of Heat Transfer & Flow In Rotating Two-Pass Channels Connected By Holes., Achintya Kumar Pramanick Jan 2002

Prediction Of Heat Transfer & Flow In Rotating Two-Pass Channels Connected By Holes., Achintya Kumar Pramanick

LSU Master's Theses

A computational study of the effect of rotation on the velocity and thermal field for a two-pass channel connected by rows of holes on the divider wall has been conducted. Detailed velocity and Nusselt number distributions are presented inside the rotating two-pass coolant channel. The enhanced cooling in this passage design is achieved by a combination of impingement and crossflow-induced swirl. The cross flow is generated from one coolant passage to the adjoining coolant passage through a series holes placed along the dividing wall. The holes deliver the flow from one passage to another typically achieved in a conventional design …

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The United States 1989 Military Intervention In Panama: A Just Cause?, William Harrision Huff Iv Jan 2002

The United States 1989 Military Intervention In Panama: A Just Cause?, William Harrision Huff Iv

LSU Master's Theses

American involvement in Panama dates back to 1903 when the United States helped bring independence to the Republic and soon after began construction of the Panama Canal. As the guarantor of Panamanian sovereignty, the U.S in the ensuing decades contributed to a non-democratic environment in Panama by supporting a series of dictators who promised stability in the region. The U.S. National Security policy just before Operation JUST CAUSE finally acknowledged the brutality of the Panamanian dictator, Manuel Noriega, forcing Washington to attempt numerous unsuccessful diplomatic maneuvers in an effort to avoid military intervention. Once combat operations commenced, the justification, necessity …

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Supercritical Carbon Dioxide Extraction Of Lipids From Raw And Bioconverted Rice Bran, Rohit Badal Jan 2002

Supercritical Carbon Dioxide Extraction Of Lipids From Raw And Bioconverted Rice Bran, Rohit Badal

LSU Master's Theses

Rice bran is often discarded despite its nutritional value because the oil in rice bran easily becomes rancid. This has necessitated the search for a method for utilizing the rice bran. The present study involves the application of supercritical fluid extraction (SFE) and bioprocessing (microbial growth on rice bran media) for increasing the value of the rice bran to produce products of high value (nutraceuticals) with superior health benefit. This study was focused on determining the effect of particle size (>48 mesh and 16-48 mesh) and biotreatment on the yield and quality of rice bran oil. SFE technique (40°C, …

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The Effects Of Fall Coldfront Passages On The Nekton Community In A Tidal Creek In Port Fourchon, La, As Monitored By Hydroacoustics, David J. Harmon Jan 2002

The Effects Of Fall Coldfront Passages On The Nekton Community In A Tidal Creek In Port Fourchon, La, As Monitored By Hydroacoustics, David J. Harmon

LSU Master's Theses

Split-beam hydroacoustic sampling with two, 420 KHz, 2x6 degree elliptical transducers was evaluated as a tool to quantify nekton movements in a Louisiana estuary. I measured the effects of atmospheric cold front passages on nekton in a tidal creek in Port Fourchon, LA during the fall of 2000. Six “fronts” were sampled between October 6 and December 18, 2000. Nekton density ranged from 0 to 24.4 fish/m3 with an overall mean of 2.44 fish/m3. Net samples were taken to supplement the acoustic data with species composition data. Species composition changed from October to December. A higher number …

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Clinical And Diagnostic Evidence Of Two Distinct Sialodacryoadenitis Virus Outbreaks, Marie Christina Grant Jan 2002

Clinical And Diagnostic Evidence Of Two Distinct Sialodacryoadenitis Virus Outbreaks, Marie Christina Grant

LSU Master's Theses

Two viral outbreaks occurred 3 years apart (1997 and 2000) in the vivarium at the Pennington Biomedical Research Center. The etiology of both outbreaks was determined by enzyme-linked immunosorbent assay (ELISA) to be sialodacryoadenitis virus. The focus of this work was to fulfill Koch’s postulates and definitively confirm the outbreak etiologies using 4 distinct diagnostic laboratory techniques: cell culture, indirect immunofluorescent assay (IFA), transmission electron microscopy (TEM), and reverse transcriptase polymerase chain reaction (RT-PCR). During each outbreak, infected rats were euthanatized, serum was collected by exsanguination, and infected tissues (submandibular salivary glands, Harderian glands, and lung tissue) were harvested and …

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The Effects Of Phytase In Nutritionally Adequate Diets, Diets Deficient In Calcium And Phosphorus, And The Interactive Effects Of Phytase And Eimeria Acervulina Infection In Broiler Chicks, Brandy Centrell Watson Jan 2002

The Effects Of Phytase In Nutritionally Adequate Diets, Diets Deficient In Calcium And Phosphorus, And The Interactive Effects Of Phytase And Eimeria Acervulina Infection In Broiler Chicks, Brandy Centrell Watson

LSU Master's Theses

Six experiments were conducted to determine the interactive effects of Eimeria acervulina (E. acervulina) infection and phytase, and the effects of phytase in nutritionally adequate diets and in diets deficient in Ca and available P (aP). Corn-soybean meal (C-SBM) diets were used. In Exp 1, treatments were: 1) C-SBM, 1.0% Ca and 0.45% aP; 2) C-SBM, 0.80% Ca and 0.25% aP; 3) Diet 1 + 600 FTU phytase/kg; 4) Diet 2 + 600 FTU phytase/kg; 5 to 8) Diets 1 to 4 but infected with coccidiosis. Weight gain (ADG), feed intake (ADFI), and gain:feed were reduced (P < 0.01) by the coccidial infection and the reduction in Ca and aP. Phytase increased (P < 0.02) ADG and ADFI, regardless of the Ca and aP content of the diet or the presence of coccidiosis. Gain:feed was increased by phytase but only in uninfected chicks (phytase x coccidiosis interaction, P < 0.02). Phytase increased (P < 0.02) bone ash percentage but only in diets deficient in Ca and aP (P < 0.01). Experiments 2 and 3 included only treatments 1 to 4 of Exp 1. The reduction in Ca and aP reduced (P < 0.01) ADG, ADFI, and gain:feed. Phytase addition increased (P < 0.02) ADG and ADFI in diets deficient in Ca and aP and in the nutritionally adequate diets. Experiments 4, 5, and 6 were conducted to determine the effects of phytase on intestinal transit time in broilers. Diets were: 1) C-SBM, 0.9% Ca and 0.35% aP; 2) C-SBM, 0.80% Ca and 0.25% aP + 600 FTU phytase/kg. Transit time on Day 1, but not on Day 7, was faster (P < 0.03) in chicks fed phytase. These data indicate that phytase is effective in the presence of a coccidial infection, but it may not be as effective as in uninfected chicks. Futhermore, phytase increases growth in diets deficient in Ca and aP and in diets formulated to be adequate in all nutrients. This increase in growth may be due to a faster transit time of feed through the digestive tract, resulting in a greater feed intake and gain.

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Toward A Design Process, Joel Shay Aulie Jan 2002

Toward A Design Process, Joel Shay Aulie

LSU Master's Theses

This project presents an unconventional approach to an innovative design process. The thesis relates the challenges of adapting to the design studio environment. The author describes a personal journey into the design process, resulting from research and study of specific designers who have had high impact on the new creative approach to landscape design. The insight and knowledge gained from this search was instrumental in the evolutional process of design, incorporating a universal technique. The resultant process was then applied to a case study and evaluated for merit. The measure of a designer ultimately becomes the work he produces.

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The Differences In Performance Of A Left Vs. Right Brained Golfer On A Curvilinear Golf Course, Robin Suzanne Jamison Jan 2002

The Differences In Performance Of A Left Vs. Right Brained Golfer On A Curvilinear Golf Course, Robin Suzanne Jamison

LSU Master's Theses

Our everyday movement is reflected by those individuals who design the world in which we live. Ninety percent of the people who shape our everyday lives are right handed. Individuals perceive life differently, especially left and right handed individuals. One reason left and right-handed individuals interpret differently is due to the brains’ two hemispheres processing information separately. Can this difference in interpretation result in varying abilities of performance? Research has proven that those individuals who are right hemisphere dominant process and comprehend shapes better than left hemisphere dominant individuals. Golf is an activity that is exhibits the constant changing of …

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Visco-Elastic Creep In The Lumbar Spine Associated With Static Flexion: A Feline Model, Guntulu Selen Hatipkarasulu Jan 2002

Visco-Elastic Creep In The Lumbar Spine Associated With Static Flexion: A Feline Model, Guntulu Selen Hatipkarasulu

LSU Master's Theses

Musculoskeletal disorders (MSDs) have become a major health concern with the industrial revolution and technological advances. The National Institute for Occupational Safety and Health (NIOSH) recently estimated the cost of MSDs at $13 to $20 billion annually. Back, spine, and spinal cord disorders add up to 60% of the total MSD injuries. Based on pervious studies, it is known that lumbar ligaments play a limited or little role in stabilizing the spine; where as the musculature around the spine is the major stabilizing structure. However, repetitive or prolonged static displacement or load induces creep in passive tissues of the spine …

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Wavelength Assignment In All-Optical Networks For Mesh Topologies, Prabhulaiah Bijja Jan 2002

Wavelength Assignment In All-Optical Networks For Mesh Topologies, Prabhulaiah Bijja

LSU Master's Theses

All-Optical Networks employing Dense Wavelength Division Multiplexing (DWDM) are believed to be the next generation networks that can meet the ever-increasing demand for bandwidth of the end users. This thesis presents some new heuristics for wavelength assignment and converter placement in mesh topologies. Our heuristics try to assign the wavelengths in an efficient manner that results in very low blocking probability. We propose novel static and dynamic assignment schemes that outperform the assignments reported in the literature even when converters are used. The proposed on-line scheme called "Round-Robin" assignment outperforms previously proposed strategies such as first-fit and random assignment schemes. …

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The Effect Of Nocturnal Sampling On Semen Quality And The Efficiency Of Collection In Bovine Species, Jennifer H. Yates Jan 2002

The Effect Of Nocturnal Sampling On Semen Quality And The Efficiency Of Collection In Bovine Species, Jennifer H. Yates

LSU Master's Theses

The objective of this study was to evaluate two semen collection schedules utilizing the assumed behavioral differences between bovine species. The efficiency was measured by bull behavior and semen quality parameters. Four Holstein and four Brahman bulls were collected each during a morning and a night collection time weekly. Ejaculates (n=64) were obtained via artificial vagina over four-weeks. To avoid masking benefits of night collection, the first collection of the week was alternated between night and day. Two collection teams were employed to reduce the time needed for collection, and the variability in collection method. Sampling order and collection team …

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Impacts Of Vertebrate Herbivores And Hurricane Georges On Densities Of Belowground Plant Material On Shallow Mudflats In The Active Mississippi River Delta, Scotland Talley Jan 2002

Impacts Of Vertebrate Herbivores And Hurricane Georges On Densities Of Belowground Plant Material On Shallow Mudflats In The Active Mississippi River Delta, Scotland Talley

LSU Master's Theses

Delta National Wildlife Refuge (DNWR) is located in the active Mississippi River Delta (MRD). Resource managers at DNWR are implementing a marsh creation program that consists of dredging crevasses (openings) in the natural or man-made levees of major distributaries to divert sediment rich waters in to open bays. The mudflats thus created are colonized by stands of delta duck-potato (Sagittaria platyphylla) and delta three-square (Schoenoplectus deltarum). These plant communities stabilize the mudflats and provide high quality habitat for wintering waterfowl and nutria. Two challenges for the maintenance of these plant communities is disturbance from tropical storms and intense winter grazing. …

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The Effects Of Oryzanol On Bone Mineral Density In Ovariectomized, Retired Breeder Rats, Heather Compton Colona Jan 2002

The Effects Of Oryzanol On Bone Mineral Density In Ovariectomized, Retired Breeder Rats, Heather Compton Colona

LSU Master's Theses

The accelerated rate of bone loss that occurs after menopause may be reduced by consuming rice bran oil (RBO), which contains natural oryzanol. Three different forms of oryzanol (natural oryzanol, NO; crystalline oryzanol, CO; and solubilized oryzanol, SO) were evaluated in a rat model of postmenopausal women. Retired Sprague-Dawley breeder rats were stratified by weight and assigned randomly to one of five groups for a thirteen week study. Rats were either variectomized (O, n=37) or sham-operated (ShC, n=10) and assigned to control (C) diets (OC, n=10 or ShC, n=10) or one of three forms of oryzanol (NO, n=9; CO, n=9; …

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Refrigerated Storage And Cryopreservation Of Sperm For The Production Of Red Snapper And Snapper Hybrids, Kenneth Lee Pickrell Riley Jan 2002

Refrigerated Storage And Cryopreservation Of Sperm For The Production Of Red Snapper And Snapper Hybrids, Kenneth Lee Pickrell Riley

LSU Master's Theses

The red snapper Lutjanus campechanus is an economically valuable sport and commercial fishery, and because of its high market value and limited commercial harvest, red snapper have received considerable attention as a candidate for marine aquaculture and stock enhancement programs. The goal of this thesis was to improve hatchery techniques for artificial spawning of red snapper Lutjanus campechanus. The objectives were to: 1) refine protocols for collecting, handling, transport, and holding of mature red snapper broodstock for induced spawning; 2) establish methods for strip-spawning of red snapper to optimize egg quality; 3) develop procedures for the collection, storage, and use …

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Liga Mold Insert Fabrication Using Su-8 Photoresist, Jian Zhang Jan 2002

Liga Mold Insert Fabrication Using Su-8 Photoresist, Jian Zhang

LSU Master's Theses

The LIGA process potentially enables economic mass-production of devices with high aspect ratio geometry. Central to the LIGA process is the fabrication of high quality LIGA molds. But in the traditional LIGA mold insert fabrication process, the x-ray photoresist poly-methyl-methacrylate (PMMA) is not highly sensitive to x-rays and a thick piece of PMMA sheet (>1mm) needs too much time to get exposed (bottom dose: 3500J/cm3), which results in excessive cost/ fabrication difficulty of the mold insert. Thus, in this thesis a negative photoresist SU-8 was tested as an x-ray photoresist in the LIGA fabrication process. SU-8 is much more …

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Effects Of Feeding Strategies On Growth Of Florida Pompano (Trachinotus Carolinus) In Closed Recirculating Systems, Derek R. Groat Jan 2002

Effects Of Feeding Strategies On Growth Of Florida Pompano (Trachinotus Carolinus) In Closed Recirculating Systems, Derek R. Groat

LSU Master's Theses

Due to its high market value, Florida pompano (Trachinotus carolinus) has long been regarded as a promising species for aquaculture. Although pompano exhibit several favorable traits for culture, previous studies have indicated that fish larger than 200 g exhibit poor growth. This study was conducted to determine the effects of different feeding strategies on production characteristics of pompano raised in closed recirculating systems. Results of Experiment 1 indicated that mean weight of fish (initial mean weight, 17 g) fed a fixed ration at two and six feedings per day was greater than that of fish fed only once per day. …

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A Screening Assessment Of Dissolved Air Flotation For Control Of Nonindigenous Invasive Species Transported In Shipping Ballast Water, Eng Chong Voon Jan 2002

A Screening Assessment Of Dissolved Air Flotation For Control Of Nonindigenous Invasive Species Transported In Shipping Ballast Water, Eng Chong Voon

LSU Master's Theses

Uncontrolled discharge of ballast water by vessels has been considered one of the main mechanisms for the introduction of aquatic nuisance species (ANS). The typical size of species found ranges from 0.02 to 10,000 micrometer. This wide range of sizes consists of microorganism (protozoa, dinoflagellates, and cholera), planktonic species, plants, insects, other arthropods, worms, mollusks, and vertebrates. These species either remain suspended in ballast water or settle in ballast tank sediments. Providing treatment for ballast water is a challenging task due to space availability of ships and significant magnitude of flow rates and volumes of ballast water. Currently, open ocean …

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Fecal Coliform Decay And Regrowth Kinetics In An Anaerobic Dairy Wastewater Environment, Shufang Liu Jan 2002

Fecal Coliform Decay And Regrowth Kinetics In An Anaerobic Dairy Wastewater Environment, Shufang Liu

LSU Master's Theses

The kinetics of fecal coliforms (FC) decay and regrowth were analyzed under laboratory conditions using filtered dairy wastewater under anaerobic conditions. The mean specific growth rates during the regrowth phase, µr , in the batch study were 1.79, 1.46, and 1.27d-1 for initial organic carbon concentrations of 478, 235 and 127 mg/L COD, respectively. The substrate concentrations had a significant impact on the FC regrowth. A maximum specific growth rate (mmax) of 1.92 d-1, and half-saturated coefficient (ks) of 60.92mg/L were determined from these data. The mean dark FC decay rate coefficients, kd , at 35oC in the batch study …

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