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Enhancement Of The Thermophysical Capability Of The Chemical Engineering Simulation System, Joydeep Banerjee

Theses

The CHESS (Chemical Engineering Emulation System) is a generalized steady-state, sequential-modular chemical process simulation program. In this thesis, the thermophysical data prediction capability of CHESS has been expanded by: incorporating more accurate thermodynamic phase-behavior models, by utilizing these models in generating a wider range of thermophysical properties, and providing an updated and expanded database for pure-component physical properties.

The overall performance of the simulation system's thermophysical package has been evaluated using the study of a subprocess consisting of various rotational equipment modules.

In this work, the Chao-Seader liquid phase activity coefficient model has been reinstalled in conjunction with the original …

Microbial Characteristics Of An Industrial Mixed Liquor After Exposure To Phenolic Compounds, Patricia L. Boyle

Theses

The microbial characteristics of a mixed population from the Passaic Valley Sewerage Commissioners (PVSC) Wastewater Treatment Plant in Newark were examined. This plant handles about 250 million gallons per day of mixed sewerage, with a large industrial component. The microbial species were characterized using standard plating techniques, morphology, microscopic observation, and biochemical tests. These characteristics were determined for the fresh liquor, and after successive batch exposure to phenol (100 ppm) and 2-chlorophenol (20 ppm). Predator/prey, gram positive to gram negative bacteria ratios, and the fungi and protozoan populations were also determined. These results were compared with those previously obtained using …

Information Retrieval In The Office For Effective Communication, Herbert Josef Schwoerer

Theses

The office worker of tomorrow, who is very likely to be an 'information-worker', will be heavily involved with communication of any kind. Effective communication, however, can only be guaranteed if the user is in control of information overload.

OIRS, the Office Information Retrieval System, designed and developed as a Master Thesis, is an approach to support the office worker in storing, maintaining, and retrieving textual information. By providing the user with a tool to impose a self-defined and self-maintained structure upon information or references to it, information overload, which is caused by lack of information about information, can be decreased. …

Analysis Of Vehicle Suspension System Subjected To Random Vibration, Shabbir Lokhandwala

Theses

A two dimensional, two degree of freedom vehicle model is studied. A randomly profiled road is assumed to impart hyperbolic distributed stationary vertical random displacements to the front and the rear wheel. A computer program has been developed to evaluate transfer function matrices. The performance characteristic of the vehicle based on the Power Spectral Density of the vertical acceleration as well as the rattle space, for different values of damping factors, are studied.

The Romance And Reality Of Art And Laundry, Susan Blumendale

Theses

None provided.

Rochester: Documented, Peter Eberlin

Theses

Over a two-year period certain unappreciated, visual and factual aspects of the City of Rochester were systematically documented. These aspects of the City of Rochester consisted of Mobil Gas Stations and their owners, closed gas stations, and new businesses in former gas stations; the City Limits and residents, animals, and other noisemakers existing proximal to the City Limits; places where I had to wait in line; the MEN and WOMEN of City Hall; the dotted lines that separate traffic lanes; and a short, dead-end street that was bull dozed over and left for field. The process of documenting these aspects …

Comparison Of Two Mtf Measurement Methods: Sine-Wave Vs Edge Gradient Analysis, John Cadou

Theses

A comparison of the sine-wave and edge gradient MTF measurement methods, on a photographic black and white film, was performed. A statistical test, a CMT acutance test, and a graphical comparison showed that there was no significant difference between the two measurement methods. This was true for the film processed to have large adjacency effects, as well as for the film processed to have no adjacency effects; however, the agreement was slightly better for the latter process. The research also showed that aligning the midpoints of the edge traces, normalizing the individual edge traces, and then averaging several edge traces …

Toward A New Visual Vocabulary: A Guide To Syntactic Variables In Graphic Design, Craig Malmrose

Theses

None provided.

A Recursive Fractal Design Generator For Dimensions Zero To Two Implemented Within A Two Dimensional Core Graphics Package, Elizabeth Lehmann

Theses

This thesis incorporates the technique developed by Benoit Mandelbrot to describe recursive fractals into an interactive graphics package based on the Core Graphics System (Core) produced by an ACM SIGGRAPH Committee (1977, 1979). The graphics package encompasses simple standard geometric shapes as well as the recursive fractals. To draw those fractals requires knowing both the basic shape or generator, and the points of recursion. These two pieces are acquired through the using of two windows which allow the generator and the points of recursion to be built. Once built, the fractal recursion level is chosen interactively on the main drawing. …

Adaptive Pattern Recognition Of Hand-Written Chinese Characters Using Fourier Transforms Of Projection Profiles, Der-Tsyi Chuang

Theses

None provided.

Image Reconstruction Using Wiener Filtering And Unsharp Masking: A Computer Model, Jay Berman

Theses

Research was conducted to computer model and compare the image reconstruction obtainable using Wiener filtering and unsharp masking. Wiener filtering and unsharp masking are techniques used to improve image quality and interpretation. It was demonstrated that far greater image restoration is obtained by Wiener filter than by unsharp masking because unsharp masking, unlike Wiener filtering, enhanced image noise along with the edges. A user friendly computer model, that may be used as a tutorial aid for Image Science students, incorporating Fast Fourier Transform (FFT) techniques was designed. Graphics allow the user to follow each stage of the image processing.

A Comparative Study Of Secondary Science And Social Studies Teachers' Attitudes And Behaviors Regarding Recycling And Recycling Education, John G. Aubuchon

Theses

The purpose of this study was to investigate secondary science and social studies teachers' attitudes and behaviors regarding solid waste recycling and classroom instruction in recycling, moreover, environmental education. The survey 's population was randomly selected from St. Louis County secondary schools. The study documented the need for control of solid waste through recycling and t he need to educate to improve recycling. It provided an extensive review of the literature on recycling instruction as well as classroom recycling activities and lesson plans.

The study used a 12 item survey-questionnaire to identify groups of teachers with the most interest in …

Improving The Capabilities Of The Chemical Engineering Simulation System (Chess) Computer Program, Thomas Zvolensky

Theses

Chemical process simulation programs have become an indispensable tool to chemical engineers in the preparation of heat and material balances, and energy conservation studies. Since the 1960's several dozen process simulators have been developed which are in use today within companies and through computer service bureaus. Due to advances in the areas of unit operation analysis and thermodynamic relations, these programs require periodic modification. This thesis describes the programming modifications made to the Chemical Engineering Simulation System (CHESS) version 2.0, computer program. This undertaking was considered warranted since no improvements have been made to CHESS since its release in 1971. …

Managing The Transition Of An Army Program From Engineering Development Into Production, Thomas Joseph Thomas

Theses

An overview of the entire Army Research, Development, and Acquisition process is presented. The research, development, test and evaluation phases are detailed. Special emphasis is placed on the Army Producibility Engineering and Planning Program. Examples of the different elements of our Army Production program are described. Finally, the focal point during the transition, the Milestone III and the events surrounding it, are discussed.

Buckling Of Some Grooved Columns, Clovis Georges Baaklini

Theses

Columns with two types of transverse grooves are analyzed: a one-sided groove whose bottom is parallel to a vertical plane and cross-section is constant, and a concentric uniform groove. Then, for illustration and to be more specific, round columns are selected such that the cross-section becomes partially circular, for one-sided grooves and totally circular for a concentric groove. The columns are simply supported at both ends and subjected to a compressive eccentric load P at eccentricity e. The static equilibrium of such columns is studied via two types of solutions: the solution to three-segment column and a substantially simpler but …

The Evaluation Of New Jersey's Remedial Response Program With Regard To The Use Of Risk Assessment In Determining Extent Of Cleanup, Susan Christine Gieser

Theses

In order to effectively manage the cleanup of hazardous waste sites the New Jersey Department of Environmental Protection developed a comprehensive Master Plan. Under P. L. 1983, c. 222 (A-1255) the Hazardous Waste Advisory Council was charged with reviewing New Jersey's remedial action program. One issue identified by the Council for review was the use of risk assessment for determining extent of cleanup. The study was comprised of a literature search, review of legislation that impacts on this issue, interviews with DEP personnel, and consultation with others from academia and industry to recommend what is an acceptable risk and its …

A Parameter Identification System For The Human Electroretinogram, Yu-Huai Hsiao

Theses

The human Electroretinogram (ERG) is obtained in a clinical test to detect physiological abnormalities in the eye. A mathematical model of the ERG has been developed, as well as a system to identify its parameters. The system utilizes several computers. The data acquisition and initial processing is done on a previously developed system at the Eye Institute of New Jersey and the University of Medicine and Dentistry of New Jersey, which has been modified to provide the facility for further processing. Software was developed to use a MINC-11/23 computer at New Jersey Institute of Technology to transfer data between the …

Optimal Design Of A Dynamic Structural System, Azhar Imtiyaz Khan

Theses

This Thesis studies optimal design of structural dynamics, based on the State Space approach which uses the Design Sensitivity Analysis and the Adjoint Variable Technique. As a numerical example, optimal design of a multistory structure subjected to a dynamic response, similar to that of an earthquake, is chosen. The equations of motion of the structural system are constructed using the Finite Element method, treating the cross-sectional area of each story as a design variable. To solve the equations a package program DE is used. A program is developed based on the State Space Algorithm and the cost function, constraints and …

An Investigation Of Structural Requirements For Computer-Integrated Manufacturing System, Deok-Soo Kim

Theses

This thesis mainly deals with the structural requirements for integration of Computer-Aided Design, Computer-Aided Manufacturing, and Computer-Aided Process Planning functions to achieve ideal Computer-Integrated Manufacturing system. Attempts to define the terminologies and to find the reasons which necessitate these technologies have been made. This work also examines the business issues to justify this concept.

This thesis considers that Computer-Integrated Manufacturing system consists of three major ingredients: Computer-Aided Design, Computer-Aided Manufacturing, and Computer-Aided Process Planning. Flexible Manufacturing System is dealt as an physical shape of Computer-Aided Manufacturing. As the result of integration, the interface rises as a serious problem, and comprehensive …

Pressure Distributions In Microvascular Network, David Moshenberg

Theses

The objective of this study was to find a practical way of estimating the pressure distribution in a network of microvascular vessels. The pressure distribution was evaluated twice, namely before vasodilations or vasoconstrictions and after the network of vessels reached a new steady state with respect to pressure and flow. Along with determining the pressure distribtuion, the simulation also calculated an effective blood viscosity coefficient for the network.

Poiseuille's equation and the axial component of the equation of motion were used to evaluate the steady state pressure and velocity distributions in each vessel. The continuity equation (conservation of mass) was …

Reliability Problems And Failure Mechanisms Of Solid Tantalum Capacitors, Ghanshyam B. Nakrani

Theses

Today, reliability is acknowledged as an important item in design and the operation of the electronic systems.

This thesis provides some theory, and experiments are instituted to evaluate the reliability for SOLID TANTALUM CAPACITORS made by different manufacturers. The experimental life test work was done at high temperature of 9S 2°C and high humidity of 95 ± 3% on transfer molded tantalum capacitors.

Literature study concentrates on the reliability in solid tantalum capacitors developed between 1961 and 1984.

Several failure mechanisms with figures are illustrated to point out how higher reliability of solid tantalum capacitors may be developed.

The bibliography …

Computer Simulation Of Drop Weight Impact Tests On Plastic Parts Or Sheeting, Upendra V. Patel

Theses

The ASTM D3029 drop weight test on plasic parts or sheeting is simulated in this thesis. The simulation is accomplished by using the Bruceton staircase method or the Up-and-Down method and the normal distribution theory. The "Probit" method is also analyzed.

The simulation programs are done in FORTRAN computer language. First, the random number generator is used to find the probability value between 0 and 1.0. Then, the cumulative probability distribution formula is used to find the absolute standard normal value. This absolute standard normal value is converted in to X normal value using given input values of mean and …

Magnitude And Frequency Of Floods : A Comparison Of Regional Methods In The United States, Frank A. Rogalla

Theses

To allow the safe and economical design of structures in flood plains of natural streams, techniques to estimate the magnitude and frequency of floods are established through multiple regression analysis for each state, relating flood peaks to topographic and climatic characteristics of the drainage basins. This study describes and compares the regional equations to assess peak flows for 2, 5, 10, 25, 50 and 100-year recurrence intervals in different states of the U.S.A.

Publications from 40 continental states were reviewed and the regression equations analyzed on similarities and accuracy. Tables compare parameters, their frequency of occurence, and the constants and …

The Impact Of Microcomputers On Engineering And Technical Management Functions, Salvatore Savino

Theses

The purpose of this study was to investigate the perceptions of managers as to the effect of computers on management functions.

Manager perceptions were determined by using a ratio scale of value ranging between 0 and 100. Findings are based on questionnaire responses of 121 top, middle, and lower managers in 120 firms in the United States.

Several hypotheses were examined in the study relative to (1) perceived computer impact on management levels, (2) perceived computer impact on the traditional functions of management, (3) perceived computer impact on levels and functions of management (interaction).

Support was provided for hypothesis of …

Development Of New Products Involving Various Uncertainties For Success, Manuel J. Senra

Theses

The development of new products is a very important task for any company, since the survival of most of the companies depends on their ability to introduce new products on the market. This is not, by all means, an easy task; it is seen from the large number of unsuccessful new products reported.

It is been proved that out of every ten products which emerge from Research and Development(R & D), only two become successes. For reasons like the one mentioned and because larger and larger funds are allocated to R & D, it is a very important task to …

The Catabolism Of Arginine By Lactobacillus Brevis In A Chemostat, Jeanette Carque

Theses

A total of thirty chemostat runs were evaluated for steady state biomass concentration of L. brevis and arginine deiminase activity at dilution rates ranging from 0.022 to 0.1.07 h^-1 for a substrate feed consisting of 1.0% glucose and 0.5% arginine (w/v). Biomass concentration and enzyme activity responses were also evaluated for variations in glucose concentration from 0.05% to 1.5% and variations in arginine concentrations from 0.25% to 1.0% at a constant dilution rate (0.06 h^-1).

The system exhibited multiple steady states for the range of dilution rates from 0.022 to 0.107 h^-1. A steady state …

Computer Simulation Of A Batch Distillation Column With A Reflux Divider, Michael Gerard Clarke

Theses

The operation of a batch distillation column with a reflux divider has been mathematically simulated to reproduce operational equipment.

The operation of the column consists of one or more product recoveries. During each product recovery period the column alternates between total reflux and total product withdrawal, with the product withdrawal period being 2 — 5 seconds. Between product recoveries the column operating conditions can be reset.

The basic assumption of this batch distillation simulation is that the column completely equilibrates during the period of total reflux. The determination of the total reflux condition is obtained computationally using the iterative Newton—Raphson …

Skyline Technique For Least Square Temporal Finite Element Method, Ying-Woei Hu

Theses

Skyline technique is known to be one of the most efficient numerical methods for solving symmetric and positive definite simultaneous linear algebraic equations whose coefficient matrix is banded and sparse. This technique considers non-zero elements below the skyline only and manipulates Gaussian elimination process efficiently.

In recent years, the finite element methods applied to discretize the space domain has been successfully extended to time domain discretization. This new technique, temporal finite elements, makes it possible to numerically solve initial value problems in a manner similar to boundary value problems.

This thesis introduces skyline technique to one of the temporal finite …

Computerized Instrumentation System For Indirect Measurement Of Metabolic Changes In Rats, Holger Tebbje

Theses

This work describes the further development of a system for the measurement of the energy expenditure of rats. Based on the concept of indirect calorimetry the respiratory exchange is monitored in a controlled experiment. Rats are held in cages through which air is drawn and analyzed. Transducers and sensors, interfaced to the computer, are measuring the composition and the physical parameters of the gas entering and leaving the chambers. The data recieved is processed, displayed on a screen, printed and stored for later analysis.

The accuracy and repeatability of the system improved by measuring additional parameters like barometric pressure and …

Random Genetic Drift Diffusion Model And Deterministic And Stochastic Models Of Epidemics, Norman W. Loney

Theses

In the Random Genetic Drift Diffusion model two approaches are taken. First we examined a discrete model that represent a relatively idealised version of the phenomena. Hefurther make the assumption that the Population reproduces itself and then dies, thus maintaining a finite population size at all times. If at a given locus there are two possible allels A and B and if X(t) is the number of A type in the genetic pool of size 2N, then 2N-X(t) is the number of B type. We then proceed to obtain a probability density function of X( t) by an Exact method …