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Investigation Of Flow Patterns In Various Wastewater Treatment Facilities, Thomas Joseph Martin Jr

LSU Historical Dissertations and Theses

The theoretical hydraulic retention time of wastewater treatment plants is often used to predict the efficiency of treatment and to calculate operational parameters. However, these values are related to the actual hydraulic retention time. When there is a large discrepancy between the actual and predicted values, the actual hydraulic retention time can be determined by marking a parcel of wastewater and recording its passage through the system. This investigation utilized rhodamine WT, a fluorescent dye, to track the movement of wastewater through a stabilization lagoon and a rock-reed filter. The loss of rhodamine WT to sorption, biodegradation and photodegradation was …

Soil Conservation Earthworks Design Manual, K J. Bligh

All other publications

In view of the great diversity of hydrological conditions encountered in the field, and the relative paucity of information with which to design soil conservation earthworks, it is frequently not possible to quantify all aspects of hydrologic design. It remains for the practising soil conservationist to search for a reasonable solution to a problem which is most appropriate to the situation, location, information and skills. The equations in this Manual provide the best available estimates of flow rates and volumes for carrying out design but it must be recognised that the information has come from a relatively limited data set, …

Application Of Bmp For Prevention Of Ground-Water Contamination, Majid Ehteshami, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

The use of pesticides is an integral part of today's agriculture. In many cases, pesticides safeguard crops from severe pest infestation, or increase yield by suppressing competing weed growth. Pesticides often make the difference between profits and losses in farming operations. However, pesticides, even in extremely low concentrations, can pose a risk to human health and to the environment. Applied to plant or soil surfaces, or injected into the soil, pesticides may leach to the ground water or may be washed off with surface water. Pesticide contaminated surface water can reach ground water, or contaminated ground water can reach the …

Fm 8-10-8, Medical Intelligence In A Theater Of Operations, July 1989, Us Army, Academy Of Health Sciences, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This manual explains the importance of medical intelligence in planning and execution of military operations. It describes the responsibilities of medical and intelligence staffs and personnel at each echelon especially within a US military command in the field. It explains the role and functions of the Armed Forces Medical Intelligence Center which provides “medical scientific and technical intelligence and general medical intelligence” for the US Armed Forces.

The manual explains procedures used to report intelligence information and to request intelligence reports as well as the forms used for those purposes.

The references anticipated the publication of an overdue updated to …

A Dss For Animal Nutrition Planning, Krishna Prasad, M R Gopalan, S Sridhar

IIMB Management Review

In recent years, after the much acclaimed success of the Green
Revolution, the nation’s planners are coming to realize that it is not adequate for
the nation to have enough to eat, it is also important to have quality food. There
has, therefore, recently been a new emphasis on industries such as dairy and
poultry. It has been realized that there is a need to harness India’s enormous
animal resources. (There are, by one estimate, some 480 million livestock in the
country, including about 230 million cattle and 136 million poultry). Significant
improvements in the productivity of livestock can be …

A Dss For Farm Management, Y Kashi Vishwanadhan

IIMB Management Review

Farm management is a decision process. The tarmer and the state as
decision makers at different operational levels have some what conflicting
objectives to achieve-the farmer has to choose between alternative use of
scarce resources - land, labour and capital and operate his farm to maximize
the net returns; whereas the state has to increase the agriculture production to
meet the demand of the population even at higher levels of input costs. It has to
take decisions relating to Support Prices for various crop products, credit and
input supply in such a manner as to ensure healthy progress in the …

Performance Of Solar-Assisted Modified-Open-Front Swine Nurseries, G. R. Bodman, M. F. Kocher, J. A. Deshazer

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Performance data of two modified-open-front non-mechanically ventilated swine nurseries have shown that solar energy can be effectively utilized to maintain a productive environment within the animal space during cold weather (temperatures as low as -26°C ( - 15 °F). The nurseries feature a monoslope roof design and passive collector panels that also function as warm weather ventilation panels. An active solar-heating system uses a ground-level collector operated in conjunction with an in-floor solar heat distribution and storage system. The nurseries were designed to handle pigs weighing from 7 to 23 kg (15 to 50 lb). An average of 19% of …

On-Farm Reservoir Construction In The Grand Prairie Region Of Arkansas: An Engineering Economic Analysis, Jayson K. Harper, Richard C. Peralta, Robert N. Shulstad

Civil and Environmental Engineering Faculty Publications

No abstract provided.

Anaerobic Biodegradation Of Trichloroethylene With The Addition Of Sugar Using Activated Carbon-Fluidized Beds, Suxan Huang

Dissertations

Anaerobic biodegradation of trichloroethylene (TCE) was carried out in a two-stage granular activated carbon fluidized bed bioreactor. The intermediate products were identified as: dichloroethylene (DCE), vinyl chloride (VC), 1,2-dichloroethane (DCA) and chloroethane (CA). Of the three geometric isomers of DCE, the trans-1,2 dichloroethylene (TDCE) was found to be the most predominant species, The production of DCA suggested a diverted reaction sequence from the conventional sequential reductive dechlorination pathway postulated in the past literature. CA was believed to be a product of VC and/or DCA. The co-substrate glucose was implicated for this reaction specificity. Based on our data and on other's …

Air Stripping Of Volatile Organic Contaminants Using Rotating Disc Contactor, Kai-Ping Hsueh

Dissertations

Previous studies have suggested that the transfer of VOCs to the atmosphere by air stripping may be a convenient and potentially cost-effective method to remove these compounds from the water. A Rotating Disk Contactor (RDC), similarly to other aeration devices, can provide intimate contact between the VOC-bearing water and air. It is believed that under carefully selected operating conditions, the RDC system are more competitive with packed tower than other aeration methods. The objectives of this study were to evaluate the feasibility of using the RDC to strip VOCs from the contaminated water and to develop a mathematical model to …

In Vitro Biocompatibility Study To Determine The Synergistic Effect Of Components For An Artificial Bone Graft Material, Levelle Elise Burr Alexander

Theses

A composite bone graft material which can induce or promote new bone growth has potential orthopaedic applications in the repair of bone defects or the stabilization of surgically implanted devices. This material should be biocompatible, have good handling properties, promote osteoinduction and/or osteoconduction and have a good shelf life. Demineralized bone matrix and bone morphogenetic protein have been demonstrated to promote osteoinduction in vitro and in vivo.

This in vitro study examined the inductive ability of an osteoinductive protein, bone morphogenetic protein, when absorbed on non-active devitalized bone matrix. In culture, fetal rat muscle was grown on powdered rabbit demineralized …

Anaerobic Biodegradation Of Trichloroethylene By Activated Carbon Fluidized-Bed, Yeam-How Chin

Theses

Abstract - The biodegradation of Trichloroethylene by using anaerobic activated carbon fluidized bed has been investigated in the present study. High quality effluent was obtainable when the TCE influent concentration was up to 2.4 ppm in the first stage. Glucose was introduced as a cosubstrate to determine the effects of glucose/TCE ratio on the COD, Glucose and TCE removal. The experimental data indicates that the overall TCE removal efficiency was only slightly affected by TCE loading, but the first stage performance was significantly influenced by TCE loadings. It was also found that the microbial activities were affected by TCE loadings …

Simulation And Off-Line Programming Of Robotic Workcells, Krishnaprasad V. Kamisetty

Theses

A typical, complex robotic workcell, namely NJIT's Flexible Manufacturing System (FMS) cell has been designed, modelled and simulated to bridge the gap between design and its implementation. McDonnell Douglas' (McAuto) PLACE, BUILD, COMMAND and ADJUST have been used to simulate entire cycle of the NJIT's FMS cell. Various aspects such as "Cycle Time Analysis", robot reachability of various positions in the cell and "Collision Detection" have also been studied and analyzed.

The ease of effecting any modifications to the existing workcell design has been demonstrated. The NJIT's FMS cell consists of the GE P-50 robot, the IBM 7535 robot, the …

Visual System Modeling And System Response Analysis, Zhongquan Li

Theses

Based on the anatomical structure, a structural model of the visual system was established. System responses of different stimulations were analyzed based on the model. More extensive study was made on the system impulse response. A mathematical model with parameters representing prominent process components was developed to represent the system response in a compact form and the parameters were statistically studied to correlate to the real physiological characteristics of the visual system. The parameters of the model were used to fit the system intensity response function. The result shows that it is a more quantitative way to construct the system …

The Effects Of Degraded Indoor Air Quality On Employees Working In High Rise Office Buildings, Richard Patrick Luongo

Theses

An examination of the effects of poor indoor air quality on workers in high rise office buildings was conducted. These effects are manifested physiologically, psychologically and economically and originate from sources inside and outside the building, as well as from the building's ventilation system. These sources include combustion products, microorganisms, volatile organic chemicals, cigarette smoke and miscellaneous chemicals. Lower productivity and higher absenteeism are the initial results of these effects. If the situation becomes chronic, an erosion of trust between employer and employee can occur which may eventually serve as the basis for litigation, such as worker's compensation claims and …

Survival Rate Study Of Intrashock Versus Postshock Microwave Rewarming In Rats Subjected To Hemorrhagic Shock, Hani M. Patel

Theses

In search for a more effective treatment for rewarming of profound accidental hypothermia, a comparative survival rate study was conducted of intrashock versus postshock microwave rewarming in rats subjected to hemorrhagic shock. In an anechoic chamber, rats were illuminated with 50 Watts of continuous microwave power supplied by a 915 MHz microwave generator. This frequency corresponds to a free-space wavelength of about 33 cm. The incident-power density was calculated to be about 8.5 mW/cm2, and the whole-body specific absorption rate (SAR) was calculated to be 14.5 W/kg.

The microwave postshock group showed a significantly higher post shock survival rate than …

Arithmetic Pipeline Analysis Package Ii, Sai K. Vedantam

Theses

This work describes the implementation of arithmetic pipeline scheduling algorithms, to enhance an existing simulation package. The user need only specify the arithmetic equations to be processed and the required stage configuration. The program automatically performs the tasks of forming the reservation table, building the pipeline and specifying the input/output connectivity for each segment and multiplexer in the pipeline. This package integrates two existing simulation tools and enhances many aspects of the previous programs.

The main application area for such a tool is education. Since it is very easy to use and requires little or no time for one to …

Measurement Of Biodegradation Aniline, 2,4-Dichlorophenol, 1,2,4-Trichlorobenzene Using Microcalorimetric Method, Lung-Weng Yao

Theses

Biodegradation of aniline, 2,4-dichloro-phenol, and 1,2,4-trichlorobenzene by using micro-calorimetric method under aerobic condition has been investigated. The rate of heat energy output during the course of log growth phase was kinetically expressed by inhibition equation. The constants of Um(the maximum energy production rate), Ks(saturation rate), Ki(inhibition constant), and n(degree of inhibition) has been of 8.764hr-1, 0.13mg/L, 0.136mg/L, and 4.6 for 2,4-DCP; 3.33hr-1, 0.315mg/L, 0.35mg/L, and 1.4 for 1,24-TCB; 3.639hr-1, 0.4485mg/L, 0.485mg/L, and 5 for aniline.

Application Of Microwave Energy To Remediation Of Soils Contaminated With Chromium, Chih-Ju Jou

Theses

A process based upon microwave treatment has been developed to render soil non-hazardous after that soil had been classified as hazardous due to heavy metal contamination. It has been applied to chromium-contaminated soil. The object of the present regulations is to prevent damage to water supplies as a result of the leaching of heavy metal ions from the soils. This object is expressed in the standard test for leaching, namely, the EPA EP Leachate test. This process can be used to immobilize metal ions sufficiently to meet the aforementioned standard. The present standard is based upon acid leaching, and not …

A Computer Program On The Economics Of Collection And Sortation Of Recyclable Materials In Municipal Solid Wastes, Ara Nigogos Kahyaoglu

Theses

The first version of the economic of recyclable materials in municipal solid waste analysis program was developed in interpretive BASIC by Rutgers the State University of New Jersey. Since BASIC is a line interpretative language several restrictions were encountered, the major one being the language size restriction.

The first objective was to obtain a truly portable program that would not be dependent on specific compilers and operating systems. The second objective was to generate a program that had the capability for expansion.

The C language was used over other high level languages such as PASCAL and FORTRAN because it had …

The Evaluation Of Polysulfone Composites As Structural Implants In Orthopaedic Surgery, Howard L. Scalzo

Theses

Two polysulfone composites were evaluated to determine their use as structural implants in orthopaedic surgery. The first composite, carbon fiber reinforced polysulfone (C/PS), was evaluated for environmental degradation in an in vivo and in vitro study. The C/PS composites were implanted subcutaneously in the abdomen of rabbits for the in vivo study and immersed in saline solution at 32° C for the in vitro study. The second composite, hydroxylapatite coated polysulfone (HA/PS), was evaluated for bone ingrowth in an in vivo study, and for attachment strength between the HA and the PS in an in vitro study. Also, two surface …

Surfactant Enhanced Scrubbing In An Ejector Venturi Scrubber Of Sulfur Dioxide From Air Exhaust Streams, Humberto Roman

Theses

The objective of this work was to determine the feasibility of applying the Surfactant Enhanced Scrubbing technique to the removal of sulfur dioxide using an ejector venturi scrubber.

Surfactants were chosen according to information from manufacturers. Those surfactants which offered good behavior in the presence of acidic solutions ( low pH ), and anti-corrosion characteristics were tested.

In the first phase, experiments were performed to determine the behavior of the foams in the ejector venturi scrubber. A foam destruction system was used when foaming conditions required it. In the second phase dynamic runs were performed to determine the removal efficiencies …

Design Of A Gear Driven Anti-Twister Mechanism For A Seal-Less Blood Processor, Ajit Nachiket Dastane

Theses

This thesis presents the design of a gear driven anti- twister mechanism for a blood cell separator. The anti- twister mechanism allows for continuous feed and discharge lines that are rigidly attached to the rotating centrifuge head, thus eliminating the need of rotating seals. It is anticipated that the device using a gear driven anti-twister mechanism will have smoother power transmission and closer rpm tolerances.

In addition, a procedure for the dynamic analysis of the existing device, which uses a belt-driven anti-twister mechanism, is developed. The experimental values obtained from the device are compared with the theoretical values obtained by …

Adsorption And Desorption Of Chromium On Clayey Soils, Ker-Shu Tan

Theses

Chromium residue waste was produced during sixties in the chromium production process. It was used as construction fill. Problems associated with chromium waste sites include structure distress and surface and groundwater contamination.

The purpose of this study was to investigate the adsorption and desorption of chromium on soil. In order to achieve this purpose, experiments were conducted to study the effect of pH, type of chromium compound, and type of soil on adsorption and desorption.

Experiments were performed on kaolinite, bentonite and sand. In our study, it was found that sand had almost no adsorption for chromium. Kaolinite had less …

Recirculation Flow Bioreactor For The Synthesis Of Nitroxide And N-Oxide Pharmaceuticals, Douglas Lischick

Theses

An investigation of the properties of calcium alginate immobilized hog liver microsomes, rich in FAD-containing mixed function oxidase, was performed. Studies involving catalyst storage, immobilization of cofactors within the matrix, and alginate gel concentration were performed using a 1.8 ml mixed flow micro assay reactor. A recirculation flow reactor was designed and used for the biochemical production of 2,2,4,4-tetramethyl-1,3-oxazolidine-l-oxyl, a potentially useful MRI contrast agent.

The activity of the immobilized microsomes was found to increase over time when stored in CaCl₂ or in buffer at 4-8°C. The increase in activity is a result of the removal of inherent inhibitors …

Modelling And Parameter Estimation In Clinical Electrooculography, Shengche Hsu

Theses

The Corneoretinal potential (CRP) was discovered in 1848. Its response to changes in light intensity can provide information relevant in the diagnosis of some retinal degenerative disorders. The indirectly measured CRP is referred to as electro-oculography (EOG). A system for automatic data acquisition and modelling, providing graphic presentation, data processing and file management, has been developed. A linear feedback model is proposed to represent the dynamics of the EOG signal. Model parameters are estimated by the nonlinear least-square method. The effect of measurement time on the reliability of parameter estimation is discussed.

User Interactive Compensation For Si/So Systems Via Root-Locus, Shih-Mim Liu

Theses

A powerful computer-aided root-locus method is described and applied to the compensation for SI/SO systems. The approach is based on the concept of continuation methods in which the solution of a parameterized family of algebraic problems is converted into the solution of a differential equation and incorporates the quadratic synthetic division technique. The root-locus is obtained in a systematic manner by numerical integration. Breakaway points are analyzed and classified according to the properties of higher order derivatives. A Turbo Pascal(4.0) program which utilizes the algorithm has been written.

A Study Of Volatile Organic Compound Emissions In The Ambient Air Of A Sanitary Landfill In Richard W. Dekorte State Park, New Jersey, Minsen Gao

Theses

A study was made of 15 volatile organic compounds (VOCs) in the ambient air emissions of a sanitary landfill located at Richard W. DeKorte Park, Lyndhurst, New Jersey. The samples were collected from July 1986 to September 1987 at 10 designated landfill sites over the selected time period from 4 to 24 hours by drawing the air to be analyzed through a Tenax trap. An average 10 to 15 liters of air sample was collected each time. Sample analysis is done on a Varian Gas Chromatograph (GC) combined with a Tekmar Thermal Desorber. A standard gas mixture of the 15 …

Irish Building Services News

Building Services Engineering

No abstract provided.

Changes In Expired End-Tidal Carbon Dioxide During Cardiopulmonary Resuscitation In Dogs: A Prognostic Guide For Resuscitation Efforts, Karl B. Kern, Arthur B. Sanders, William D. Voorhees, Charles F. Babbs, Willis A. Tacker, Gordon A. Ewy

Weldon School of Biomedical Engineering Faculty Publications

Expired end-tidal carbon dioxide (PCO2) measurements made during cardiopulmonary resuscitation have correlated with cardiac output and coronary perfusion pressure when wide ranges of blood flow are included. The utility of such measurements for predicting resuscitation outcome during the low flow state associated with closed chest cardiopulmonary resuscitation remains uncertain. Expired end-tidal PCO2 and coronary perfusion pressures were measured in 15 mongrel dogs undergoing 15 min of closed chest cardiopulmonary resuscitation after a 3 min period of untreated ventricular fibrillation. In six successfully resuscitated dogs, the mean expired end-tidal PCO2 was significantly higher than that in nine nonresuscitated dogs only after …