Digital Commons Network^™

Computerized Analysis Of Gastrointestinal Spike Burst Activity, Karthik Krishnan

Theses

This thesis describes a computer algorithm for locating gastrointestinal spike bursts. The algorithm also finds the the number of spikes within each spike burst, the average duration, and average amplitude of each spike burst. The algorithm was applied to the automation of the analysis of the Migrating Colonic Complex.

The algorithm detects the spike burst using threshold, time interval and frequency criteria. The computer program is implemented on a PDP 11/73 digital computer. The operation of the algorithm was tested on animal models to detect the spike bursts, before and after the inducement of certain drugs to alter the colonic …

Development Of A Novel Dentin Bonding Agent And Testing For Mechanical Properties, Mircroleakage And Toxicity, Sanjay V. Odak

Theses

In this study a dentin bonding agent based on Tolylene diisocyanatc with o chlorophenol as a blocking agent was tested. Bond strength with dentin was determined using a clinically relevant test method. A comparison was made using commercially available bonding agents and restorative resins. A simulation of microleakage around restorations was performed using a "Silver staining technique". Microleakage was quantified using digital image analysis, and a method was proposed to compensate for the loss of the third dimension during image analysis. Layer-by-layer curing of restorative, and an acid etching technique was used to improve bonding to dentin. The oral LD50 …

The Architecture Of Automobile And Building Design : Learning From 100 Years Of Parallel Processes, Vojislav Ristic

Theses

The industrial revolution has had a critical impact on society in general and architecture in particular. How we design, build and use buildings is different due to industrial changes in materials, processes and techniques. A key manifestation of the industrial revolution has been the automobile. Since the automobile is a more direct result of application of technique, it is helpful to examine its design to better understand the less direct influences of technique in architecture. This is especially important at a time when the role of technology in architecture is becoming both more significant and more difficult to define and …

The Integration Of Ghanaian Traditional Pottery And American Contemporary Ceramics, Vesta Elizabeth Adu Gyamfi

Theses

None provided.

The Embryological Development Of The Tilapiine Fishes, Michelle Katz

Theses

None provided.

"Personal" Constructs, Zwelethu Mthethwa

Theses

None provided.

Gravity And Heat As Tools For Shaping Glass, Gerardo Selva

Theses

None provided.

"Eggspressions", Eyda Jové

Theses

The purpose of this thesis is to create an animation for entertainment utilizing the computer as opposed to traditional animation. I intend to use the computer as a tool to tell a visual story rather than performing visual tricks and techniques so often found in computer animation. The animation will tell a story in which the characters will have visual appeal in order to involve the viewer. It is also possible that I may integrate some video techniques. The Genigraphics computer systems will be used incorporating both the paintbox and animation system.

Instructional Material Through Computers And Photography, Joseph Kevin Newbill

Theses

This thesis report documents the design and production of an audiovisual program for the Industrial, Interior, and Packaging Design Department at Rochester Institute of Technology. The curriculum structure, beginning with the freshman year and ending with the senior year, was examined in this program. The faculty and students were portrayed within their multi-faceted classroom environment. Additional ly, this program was designed to give prospective students an overall view of each design field. Attention was directed towards capturing the challenging activities that design students encounter during their educational experience.

Duality In Furniture Design, Kenneth S. Burton

Theses

None provided.

Medical Illustration On The Macintosh Personal Computer, Bobby Louis Pitts

Theses

None provided.

Effects Of Peripheral And Microwave-Core Heating On Survival In Hemorrhagic Shock In Rats, Ashraf Sabry El-Assuooty

Theses

In a model of rats resuscitated from hemorrhagic shock,where 11 of 12 animals were alive up to 4 hours after shock, there was an average drop of 10°C in core body temperature. Survival and morbidity was much impaired when the shocked animals were externally heated with an infrared lamp to maintain a core body temperature of 35°C. Since the increased intrashock mortality is possibly due to the circulatory changes induced by peripheral heating, an attempt was made to determine the effects of heating the animal at its core. Twelve rats were shocked in the same fashion, however the body core …

Microcomputer-Controlled Respiratory Rate Monitor, David John Hartmann

Theses

In order to measure the metabolic change in an animal due to the administration of anti-obesity drugs, an instrument was constructed which will allow the continuous sampling of twelve individual animals residing in enclosed chambers. The instrument is based on the principle of Indirect Calorimetry, which measures metabolic rate by sampling the inlet and outlet concentrations of respiratory gases (oxygen and carbon dioxide) of the chamber. The system is controlled by an IBM PC which will control six chambers or twelve chambers simultaneously.

The system assesses the metabolic rate of the animal by calculating the Respiratory Quotient (RQ) and the …

Apap: The Arithmetic Pipeline Analysis Package, Chang-Chieh Lin

Theses

This study is aimed at the development of an interactive PC-based package for simulating data flow within an arithmetic pipeline in multiprocessor systems. The user constructs the arithmetic pipeline, specifying the functionality of each segment, the intersegment connectivity and pipeline inputs and outputs. After defining reservation tables and data, analysis is performed with the results available in tabular, simple graphic and animated graphic forms.

APAP allows the user to design hardware and analyze its functionality with-out building the circuit, an economical alternative. Even when circuits are to be built, APAP allows the user to correct logic errors before implementation, leaving …

Pentachlorophenol And Oxygen Consumption Of Immobilized Mixed Bacterial Culture, Tesfamariam Stephanos Tsadwa

Theses

This study was undertaken to investigate the effects of Pentachlorophenol (PCP) concentration on oxygen consumption of immobilized microbial cells. The microbial population, from a municipal wastewater treatment plant, was immobilized in calcium alginate gel. The following studies have also been conducted in this project:

1. Comparison of the effect of PCP concentration on oxygen uptake between immobilized and free cells.
2. Comparison of the effects of PCP concentration on oxygen uptake between acclimated and an unacclimated bacterial beads.

Dissolved oxygen concentration was monitored using a flow Clark-type oxygen probe, in a micro-assay bioreactor. It was found that PCP concentrations higher than 2000ppm …

On-Line Blood Glucose Control System, Huan Zheng

Theses

A method has been developed that can monitor and control the meal initiation of rats. The goal of studying meal initiation is to find a mechanism of control of the diet, based upon the assumption that the body weight is closely related to feeding behavior. If the feeding behavior can be controlled, then the body weight can be controlled. The experimental system has two major functions: (1) Continuous measurement and recording of the blood glucose concentration and meal pattern of rats. (2) Automatic or manual infusing of glucose or other substances to the rats intravenously.

For blood glucose concentration and …

Determination Of Polycyclic Aromatic Hydrocarbons From Incineration Emission Samples, Robert Cebula

Theses

Stack emissions from five sources (one pulverized coal combustion operation, three sewage sludge incineration operations and one gray tin refractory operation) were sampled by use of U.S. EPA Modified Method 5 isokinetic sampling unit for vapor and particulate effluent. The sampling unit provided XAD-2 resin samples, polytetrafluoroethylene and glass fiber filters and impinger washings of dichloromethane. The resins were soxhlet extracted using dichloromethane (DCM) and the filters were soxhlet extracted using DCM followed by acetone. Fractionation of extracts was accomplished by thin layer chromatography. The resulting fractions were analyzed for polycyclic aromatic hydrocarbons (PAH), nitro-PAH and quinone-PAH by high-performance liquid …

Ibm/Xt-Based Automatic Monitoring Instrumentation System For Eating Behavior Studies In Rats, Binghong Gui

Theses

An auto-feeding system based on the IBM-XT microcomputer has been designed for use in the anti-obesity research program in the Pharmacology Department at Hoffmann-La Roche Inc. By using this system, experimental rats can be automatically fed, some which have been given anti-obesity drugs and some which have not. The system can also collect data, such as eating times and food intake, which are used for studying the rat's eating behavior.

The system is designed to control thirty six cages with one experimental rat in each cage and it performs three functions:

1 ) To automatically dispense a preset quantity of …

3-D Reconstruction Of Microvasculature From High Voltage Electron Microscopy (Hvem) Data, Pradip Kumar Paul

Theses

This is a new method for histoarchitectural and volumetric analyses of cell compartments of microvasculature with the use of a unique combination of computerized 3-D reconstruction and HVEM thick serial cross sections. The technology is potentially a reliable, simple, accurate and fast method. Pioneering work in this area was started by Todd et al. (Circ Res Vol :53 p 319 ;1983) basically using light microscopy, but supported by conventional ultrathin transmission electron microscopy. These techniques are important in that they promise to resolve controversies in terms of evaluating the occurance of hyperplasia and hypertrophy in small resistance vessels in various …

Biosynthesis Of Amine Oxides Using Calcium-Alginate Immobilized Hog Liver Microsomes : An Evaluation Of Process And Reactor Design, Ioannis I. Valvis

Theses

An evaluation of the biocatalytic ability and the potential utilization of Calcium-alginate immobilized hepatic microsomes (beads) for the biosynthesis of amine oxides has been performed, To accomplish this task, the following three areas Were investigated: immobilization, catalytic biooxidation ability, and reactor configurations.

Immobilization was found to result in higher yields over free microsomes at the expense of higher cofactor requirements. Refrigerated drying of immobilized micro-somes appears to be a better storage technique than wet storage in buffer. Smaller beads resulted in higher rates than larger beads, but size did not affect the overall yield.

Chlorpromazine (CPZ), diphenylamine (DPA) and 4-hydroxy-2,2,6,6-tetramethylpiperidine …

Seaforms, Karen Louise Wright

Theses

None provided.

A Survey Of Computerized Writing Aid Systems And Implementation Of A Homonym Checker Using Artificial Intelligence, Anna Marie Robbins

Theses

Computerized writing aid systems ideally determine whether word usage in written text is appropriate both syntactically and semantically. Currently developed computerized writing aid systems are reviewed with emphasis on their methods for and success at grammar checking. A limited homonym checker and correction advisor is devised and implemented using the Prolog programming language and artificial intelligence techniques. Insight is gained into the problem of developing a comprehensive computerized system for determining appropriate syntactic and semantic word usage.

A Study In Music Visualization, Charles Marsh

Theses

None provided.

The Kingdom, The Power, And The Glory, Craig Varjabedian

Theses

None provided.

Determination Of Global Extractives In Polyethylene Terephthalate By Heating The Solvent In A Microwave Oven, Anuj Parikh

Theses

DETERMINATION OF GLOBAL EXTRACTIVES IN POLYETHYLENE TEREPHTHALATE BY HEATING THE SOLVENT IN A MICROWAVE OVEN By Anuj Vinodchandra Parikh The purpose of this research is to evaluate a method of determining extractives. Instead of a conventional oven, a microwave oven is used to heat the solvent. Attempts are made to duplicate the extraction methodology proposed by the Food and Drug Administration (FDA) in a way that it can be used to determine extractives for microwave-only packages. A test package consisting of crystalline polyethylene terephthalate and paper was selected for the test. A product consisting of a dehydrated mix of pasta …

Simulating Three-Dimensional Animation, Daniel F. Connor

Theses

None provided.

Computer Animation Design And Execution: Integrating Poetry And Technology, Catherine Haven Kirby

Theses

None provided.

The Moving Image, Jacqueline M. Cotrupe

Theses

None provided.

Synthesis And Characterization Of A Novel Blocked Isocyanate Dental Adhesive Based On Diphenylmethane - 4, 4' - Diisocyanate, Yangming Lin

Theses

The dental adhesive monomers based on diphenylmethane - 4,4 - diisocyanate (MDI) were prepared and studied in this research. The diisocyanate, MDI, was first reacted with hydroxyethyl methacrylate (HEMA) to form an intermediate adduct. This adduct had an active isocyanate end group. It was then bonded with o-chlorophenol (OCP), a blocking agent, to produce a blocked isocyanate monomer.

The new blocked isocyanate (HEMA-MDI-OCP) was found to have an average value of more than 1200 psi in tensile tests measuring its adhesion to dentin slices.

Adsorption Of Nickel And Lead With Activated Sludge, Chi-Yun Chen

Theses

Wastewater produced in domestic, commercial, and industrial activities often contains significant amounts of metals. This would result in the discharge of heavy metals into the sewer system. Some of the heavy metals can be adsorbed by activated sludge. This may present a problem for the treatment and ultimate disposal of sludge.

The purpose of the research was to determine how much metals can be adsorbed by sludge. Nickel and Lead were selected for this investigation because of their environmental significance. Both belong to priority pollutants considered potentially toxic. Factors affecting the adsorption, such as sludge concentration, metal concentration, mixing condition, …