Digital Commons Network^™

Parallel Implementation Of Spatial Domain Image Processing Algorithms On The Mesh Connected Computer Simulator, Adury Devi Prasad

Theses

The performance of conventional computers in image processing applications is known to be inadequate due to the enormous computational requirements. Almost all image processing applications can be implemented in parallel. This thesis is the parallel implementation of neighborhood averaging and edge detection by the Sobel and Laplacian operators on the Mesh Connected Computer Computer Simulator (MCCS), a package developed at NJIT to study the behavior of SIMD machines. Expressions for speedup, utilization and efficiency have been derived. Suggestions for further improvements that can be incorporated in MCCS and its instruction set have been made.

Attitudes And Job Images Of The Public And Private Sectors : A Comparison Of College Students In The United States And Taiwan, Hui-Yuan Liao

Theses

This study focuses on a comparison of US and Taiwan students' attitudes towards public and private organizations. To identify the differences between two samples, 60 US students and 65 Taiwan students completed a questionnaire on 40 job attributes. Mixed design ANOVA revealed significant differences between the two samples.

Overall, students from the US had more positive attitudes than students from Taiwan. For both groups, attitudes were more positive for private-sector organizations than for public-sector organizations. And both groups believed that organizations fared better on extrinsic attributes than on intrinsic ones. However, significant interactions indicated that attitudes are complex and varied …

Solidification/Stabilization Of Chromium Contaminated Soil Using Cement And Fly Ash, Arunkumar Sripathi

Theses

Chromium, when present in the soil, can cause serious health hazards. Toxicity depends upon the concentration in the soil. Chromium in soil has become a major problem in some sites and a method must be developed so that it can be treated or disposed of in a safe manner.

In this research experiments are conducted to check whether the chromium contaminated soil can be solidified and landfilled in a safe way. To have a control over the amount of chromium present in the soil, pure soil (free from chromium contamination) was used and chromium was added in different proportion.

Another …

Liquid-Vapor Equilibria And Henry's Law Constants For Volatile Organics In Surfactants, Qianping Peng

Theses

We present liquid vapor equilibria data and Henry's law constants for Methyl-ethyl Ketone, Toluene, Butyl Acetate, Acetone and i-Propanol in surfactants: Octylphenyl Decaethoxylate, Sorbitan Monooleate and Sodium Sulfonate at temperatures of 20 to 70 C.

The objective of this study is to determine the effect of applying surfactant absorption technique (neat surfactants) to volatile organic compounds (VOC's) for the removal of these species as organic vapors from air emission streams.

Liquid/vapor equilibrium data are presented as curves in several different ways:

i. Each individual VOC at four temperatures between 22 C to 70 C in the respective surfactants Octylpenyl Decaethoxylate, …

Methods Development For Determination Of Trace Polar Volatile Organics In Environmental Samples, Qingchu Peng

Theses

The determination of trace levels of organic compounds in water samples is well developed for the less polar compounds, but the polar compounds are more difficult. The development of reliable and reproducible methods for such compounds as volatile alcohols and ketones is necessary if environmental monitoring is to be extended to these compounds.

The purge-and-trap method is frequently used for determination of volatiles in water samples. The method has problems when hydrophylic substances are being analyzed, since these are less easy to purge from the solution and more difficult to trap and desorb quantitatively. The high amount of water carried …

Catalytic Oxidation Of Trace Concentrations Of Chlorinated Hydrocarbons Over 1.5% Platinum On Alumina/Monolith, Yi Wang

Theses

The catalytic oxidation of chlorinated hydrocarbons CH₂Cl₂ (DCM) and C₂HCl₃ (TCE) was investigated over a 1.5% Pt on Al2O3/monolith at 150 to 450°C. The studies were conducted at space velocities from 1,000 v/v/hr to 30,000 v/v/hr. Chemical equilibrium calculations showed the potential conversion and products distribution. The reactivity and selectivity for destruction of these compounds with air over Pt catalyst were evaluated experimentally. This research was conducted in a tubular reactor system with associated feed and product flow measuring equipment. Feed and product streams were analyzed using gas chromatography (GC) with ECD, FID and …

Preparation And Testing Of Novel Dental Adhesives Based On Bis- Gma/Tegdma Monomer System, Deyun Sun

Theses

In this study, polymerizable phosphonate adhesives synthesized from Diethylchloro-phosphate and 2-Hydroxyethylmethylacrylate and formulated with G-methacryloxy-propyltrimethoxy silane is used in Bis-GMA/TEGDMA monomer system. All the raw materials and finished products are characterized with infrared spectra, vapor pressure osmometry, viscosity and gel test. The bonding strength to tooth materials is determined by Instron machine. The work emphasizes applying polymeric organic phosphonate adhesive to Bis-GMA/TEGDMA monomer system and investigates the appropriate conditions for the crosslinking of Bis-GMA/TEGDMA monomer system. Average bonding strength of 744 psi to enamel and 600 to dentine are ob¬tained in comparision to 550 psi to enamel for phosphonate/silane/MMA/PMMA and …

Catalytic Oxidation Of Chlorinated Compounds Over Pdo/Al2o3 On A Monolith, Tai-Chiang Yu

Theses

The catalytic oxidation of trichloroethylene(TCE) and dichloromethane (DCM) was investigated over a catalyst containing 4% PdO on Al₂O₃ washcoat and on a cordierite monolith with 400 channels per in². Reactivity and selectivity of the catalyst for the destruction of 200 ppm C₂HCl₃ and 500 ppm CH₂Cl₂ in air was evaluated over the temperature range 250 to 550 °C. This research was conducted in a tubular reactor system at space velocities of 4,000 to 24,000 v/v/hr. It was found that complete oxidation occurs at 500°C for DCM and 550°C for …

Burn Wound Healing Evaluation By Infrared Imaging, Shang-Yuan Chen

Theses

Infrared imaging is a pictorial method of temperature representation. Its advantage in the treatment of burns is that it is a non-invasive, safe and reliable method for estimating the area, temperature and depth of burns. An Imaging Burn program was developed for comparing changes in burn area in response to treatment with time. The program proved itself capable of determining the surface area of simulated lesions on the skin of human volunteers to within an error of 1.6 percent. The size and temperature of burn lesions in patients was recorded. First degree burns were warmer than surrounding areas of normal …

Acid Recovery Of Cadmium And Lead From Immobilized Activated Sludge Used To Biosorb Metals, Chandrakanth Hartman

Theses

A study of the adsorption and subsequent desorption of heavy metals using various concentrations of hydrochloric acids has been performed.

To accomplish this task, the following areas were investigated : immobilization of the sludge, adsorption of heavy metals, various concentrations of acid used as stripping agents, examination of the relative fractions of heavy metals obtained using various stripping agents, and the actual concentration of the acid at a particular fraction.

It was observed that water helps in extraction of cadmium to a certain extent, but lead cannot be extracted with water. Also, water mixed with dilute hydrochloric acid is more …

Biodegradation Of Styrene In A Recirculation Reactor Using Immobilized Activated Sludge, Shreyans Dilip Shah

Theses

The performance of immobilized cells in the biological treatment of hazardous waste was investigated using a recirculating flow reactor in batch mode. A mixed culture activated sludge from a municipal waste water treatment plant was immobilized in calcium alginate gel, The bio-oxidation ability of these microbes towards a model toxin (styrene) was studied under closed system using dilute H₂O₂ solution as an oxygen source.
The process parameters studied were as follows:

1. Effect of flow rate of recycle stream,
2. Effect of biomass loading,
3. Effect of spiking concentration of styrene, and
4. Flow pattern and average residence time within the …

The Application Of Adaptive Step-Size Control In The Numerical Simulation Of Calcium Release In Vascular Smooth Muscle, Michael John Sydor

Theses

An algorithm for the adaptive control of numerical integration step-size is developed and implemented for the simulation of a three compartment model for Vascular Smooth Muscle. The three compartment model accounts for the simultaneous diffusion of Ca, ⁴⁵Ca, EGTA, Ca-EGTA, and ⁴⁵Ca-EGTA, and is an extension of a two compartment model by Diecke for the simultaneous diffusion of Ca, EGTA, and Ca-EGTA. The addition of the third compartment is to account for the presence of the Sarcoplasmic Reticulum which stores the calcium needed for contraction and is the primary regulator of calcium in the VSM cell. The SR …

Successor Employers' Obligations Under The National Labor Relations Act, Ting-Wang Lu

Theses

A wave of business acquisitions is currently sweeping the American corporate scene. Companies are purchasing both unionized and non-unionized businesses at a dizzying pace.

Not surprisingly, after years of confrontational contract renewals, management and 10 unions at the New York Daily News are jockeying for position in talks over agreements that expire on March 30, 1990. Throughout the long negotiation process then the strike began on October 25, 1990. End with Robert Maxwell, the British press baron, signing an agreement on his purchase of the Daily News on March 14, 1991. Obviously, this question of successor employers' obligations is one …

Controlling Hazards Associated With Confined Spaces, Srinivas S. Varahabhotla

Theses

Work in Confined Spaces poses special health and safety problems. To avoid the serious consequences which may follow poorly planned or poorly supervised confined space work, a comprehensive program of recognition, evaluation and control of potential dangers must be developed.

The work force should be aware of the extreme dangers associated with confined space and of the procedures and equipment used to overcome these dangers effectively and safely.

The purpose of this thesis is to present the hazardous conditions in a confined space and different means of overcoming these dangers which are not readily apparent. It shows how confined spaces …

High Precision Laser Radar Tracking Device, V. P. Raghavan

Theses

This thesis explores a relatively new Solid Silver Thin Film Source technology, for the implementation of a novel High Precision Laser Radar Tracking device. The process which consists of a Ag+-Na+ ion exchange, is designed in two steps. It utilizes an initial electric field-aided ion exchange step for a predeposition, and a subsequent second diffusion step to force the profile latitude necessary for optimization of the device. While the entire project of implementing this device, consists of analyzing, processing, polishing and testing, this thesis covers only the process aspect in detail. The success achieved by obtaining the required Power Coupling …

Way To The Absolute, Gonca Ilbeyi

Theses

Nowadays more and more people, especially who live in large cities, suffer from a terrible emptiness and boredom, as if they are waiting for something that never arrives. Within modern civilization, its people lose the meaning of their lives, values, and they find themselves in morally decayed. My main purpose, through the medium of art, is to express the complexities and paradoxes of human existence in modern industrial societies- not from a pessimistic, but a skeptical perspective. Alienation, depersonalization, loss of identity in this world by bureaucratic rules and regulations are central problems of all modern industrial societies. The rise …

Image, Media, And Installation, Chih-Fu Wang

Theses

None provided.

Microwave Treatment Of Hazardous Wastes : Chemical Fixation Of Insoluble Non-Volatile, Chemically Non-Reactive Organics In Soil, Naihong Zhu

Theses

Microwave treatment of hazardous wastes like dioxin-contaminated soil potentially fills a great need for a remediation technology which potentially can be applied in-situ: the EPA has concluded from a risk assessment study that it is the excavation and transportation of such wastes that poses the greatest risk. Studies have been carried out on a surrogate for dioxin, namely, 9,10-anthraquinone because it has similar chemical and physical properties but it is not toxic. It was found in microwave treatment studies that, at temperatures attainable in-situ, anthraquinone became non-extractable. A model was proposed which postulated that as water was removed from soil …

A Conceptual Look At Hodgkin's Disease, Todd K. Smith

Theses

None provided.

Treatment, Ann Satterfield

Theses

None provided.

Gas Chromatographic Method For Determination Of 28 Volatile Organic Compounds Emitted From A Sewerage Plant, Yeming Sun

Theses

In this study, 28 volatile organic compounds (VOCs) emitted from the Linden Roselle Sewerage Authority Plant (LRSA) were monitered. The determination by gas chromatography (GC) is presented. This work emphasizes the collection of whole air samples, using a canister-based sampling system with cryogenic concentration. An appropriate temperature program was selected to obtain the best sample separation. The procedure for the identification of 28 standard gas mixture was achieved by comparing the chromatograms of sample with those of the specific groups of target compounds, as well as by comparing the sample with the results from GC Mass spectrometeric analysis. Because of …

Thermal Desorption Of Contaminated Soils, Hsi-Ming Sung

Theses

A new method by employing the heating probe for the in-situ cleanup of soils that are contaminated with volatile organic hazardous substances is explored. This investigation is a laboratory simulation that was aimed to evaluate the feasibility of desorption of volatile organic compoumds (VOCs) from soil, and to determine the efficiency of the heating probe for maximum desorption.

Two organic compounds, Trichloroethylene, Carbon tetrachloride, were selected as simulants. The experimental results demonstrate that the removal efficiency range from 97.65% to >99.95% of Trichloroethylene and 98.14% to >99.95% of Carbon tetrachloride can be recovered for a 24 hour interval with a …

Analysis Of Chemical Contaminants In Tissue Samples From Two Species Of Fish, Michael David Reive

Theses

Interaction of marine species with chemical pollutants within the marine ecosystem is extremely complex and difficult to interpret. The purpose of this thesis was to investigate the effect of an exposure of treated municipal wastewater on winter flounder (Pseudopleuronectes americanus) and striped bass (Morone saxatilis). Fish from two locations were exposed to different concentrations of wastewater. Half of the fish from each tank were sacrificed, and the remaining fish were given a depuration period in unpolluted water. Tissue samples were composited, soxhlet extracted and passed through a florisil cleanup column. Gas chromatography, was used to analyze for hexachlorobenzene, hexachlorobutadiene, Aroclor …

Centrifugal Modeling Of Leaking Underground Storage Tanks, Kuo-Neng George Chang

Theses

There are between 2 to 3.5 million Underground Storage Tanks (UST) located through this nation. Most of these tanks store gasoline and fuel oil. Many tanks in fact are or will soon be leaking, thus making them one of the major sources of groundwater contamination in USA. The fate and transport of chemicals from the leaking USTs is estimated from mathematical models. A major difficulty in these modeling efforts has been a crucial lack of information concerning the constitutive relationships governing multiphase contaminant movement.

Centrifugal modeling is an alternative to mathematical modeling, which may give an insight to the problem …

Development Of Techniques Of Artificial Intelligence In Identifying The Different Machined Surfaces, Yi-Ching Chou

Theses

This thesis deals with the identification of different machined surfaces with artificial inteligence techniques. There are five kinds of machining operations: grinding, turning, milling, EDM and waterjet which determine the characteristics of resulting surfaces. Topology of various specimens is measured using the surfanylizer. Twenty one parameters are extracted from the measurements to describe the characteristics. In this thesis, we develop neural and expert systems that recoginize and classify surfaces according to the machining methods.

Anaerobic Biological Treatment Of Incinerator Ash To Immobilize Toxic Metal Residues, Uma Parasar

Theses

In this study, a reliable and inexpensive method for biologically immobilizing toxic heavy metal residues present in very high concentrations in incinerator ash was developed. Desulfovibrzo, a genus of sulfate-reducing bacteria was cultured and treated with combined ash under anaerobic conditions. The carbon source, lactate, and the electron acceptor, sulfate, were provided to the cultures for their normal growth. Since the sulfate reducers utilize organic matter using sulfate as the oxidizing agent, sulfides are the corresponding end products of the reaction. Ash was added to well established cultures of desu f ovibrio. Immobilization of the heavy metals in the ash …

Restaurant Meal Cost Trends In Five Of The Top 100 United States Business Travel Cities, Rebecca J. Englehart

Theses

Not listed.

Identifying Rural Touristic Preferences: A Case Of Orleans County, Rene Corene Rhodey

Theses

Not listed.

Food Marketing Distribution: A Pilot Study Of Ardmore Farms, Michele Ann Musella

Theses

Ardmore Farms is one product group that in part comprises the Food-service Division of Quaker Oats Company. They produce portion-controlled, USDA approved citrus and fruit juices. The juice is produced by one plant located in Deland, Florida. It is then shipped throughout the United States via a fleet of more than 120 refrigerated trucks. in fiscal year 1990 Ardmore experienced a financial crunch due to a freeze in Florida. To counteract the negative financial effects of the freeze, Ardmore hastily raised their orices. This aggravated the food-service operators resulting in a "fallout" of Ardmore's customer base. Also many regional juice …

A Descriptive Study On Trekking Attributes In Nepal Using Importance-Performance Analysis, Pasi Ryhanen

Theses

Since the opening of its doors to the outside world, Nepal has seen a large growth in tourist arrivals. One of the fast growing tourist markets attracted to Nepal is the trekking vacationers. In order for the suppliers and decision makers of the trekking product to be able to meet the demand of users it is important that they are able to target the development in the appropriate direction. A lack of communication among the components of the tourism industry has resulted in a lack of cooperation. The purpose of this study is to develop an instrument that enhances communication …