Digital Commons Network^™

Hydroboration Of Strained Cyclopropane Ring Systems Promoted By Wilkinson's Catalyst, Kevin W. Gillman

Theses

None provided.

Adaption And Application Of Morphological Pseudoconvolutions To Scanning Tunneling And Atomic Force Microscopy, Andrew D. Weisman

Theses

A recently developed class of digital filters known as morphological pseudoconvolutions are adapted and applied to Scanning Tunneling Microscopy (STM) and Atomic Force Microscopy (AFM) images. These filters are shown to outperform, both visually and in the mean square error sense, previously introduced Wiener filtering techniques. The filters are compared on typical STM/AFM images, using both modeled and actual data. The technique is general, and is shown to perform very well on many types of STM and AFM images.

The Search For The Active Site Configuration Of Glutamate Dehydrogenase I) Reactivity Of Lys-126 Ii) Preparation Of O-Se-Nadp+, Deborah Judd

Theses

None provided.

A Novel Test Structure For Automated Measurement Of Charge Transfer Efficiency In Charge Coupled Imaging Devices, Herbert J. Erhardt

Theses

None provided.

Generating Just Temperament With Ideal Rate Multiplication, Andrew C. Moore

Theses

I have developed a new rate multiplication method. I call it ideal because the quality of the frequency approximation that it makes is maximized, and it extends the range of its frequency scaling factor to all the rational numbers between zero and one. In addition, each input control code produces a unique output frequency. The input code is necessarily not straight binary, so the circuit is not pin compatible with other rate multipliers. I designed the ideal rate multiplier as a method for easily producing just tempered musical intervals. Even a three bit ideal rate multiplier produces many recognizable musical …

Passionate Hours, Douglas E. Taylor

Theses

This is the written document to accompany the thesis project Passionate Hours (ill. 11). The project consists of five paintings arranged into a U-shaped configuration with one large panel in the center and two smaller panels on each side. The paintings are predominantly in primary colors and depict scenes from the Passion of Christ interspersed with scenes from the Old Testament. The panels present a nightmarish vision due to the expressive style with which I painted the figures. In the following pages, I will explain the meaning of the paintings, the theology behind the them, and the process of their …

Effect Of Developmental Spelling Level On Spelling Achievement, Karen Finn Edwin

Theses

Purpose of the Study

The purpose of this study was to compare the developmental levels of spelling in first and second graders with measured performance in the classroom over a period of ten weeks.

It was the hypotheses of t his study that children in first and second grade who were functioning at pre-Phonetic stages of spelling abiIity would have difficulty passing weekly classroom spelling tests . A second hypothesis was that students who were developmentally at higher levels would be able to achieve better on weekly spelIing tests.

Procedures

In this study the spelling achievement of thirty-six first graders …

Simulation Study Of Signal Coupling For Monolithic Gaas 8-12 Micron Direct Injection Mqw Image Sensor, Lei Zhang

Theses

The simulation of signal coupling for a single pixel of a monolithic 8-12 micron GaAs/A1GaAs direct injection MQW infrared image sensor with 100% fill factor has been performed by using PISCES-IIB and PSPICE simulators. A vertical structure with the readout circuit built on the back of MQW was adopted for simulations. Both the static and transient characteristics were analyzed by simulation. The simulation was used to verify the doping profiles and device parameters for the n-GaAs MESFETs used in the read-out circuit.

The simulation result is as follow:

(1) A 900A thick p-GaAs (p=10¹⁶/cm3) substrate for GaAs MESFETs …

A Comparative Analysis Of The Efficacy Of Zero-Order, First-Order And Monod Kinetic Models In Representing Raw Aerobic Biodegradation Data, Andrew I. Bakun

Theses

A total of 148 raw aerobic biodegradation data sets from batch and continuous stirred-tank reactors were extracted from the open literature and previous NJIT MS theses. Kinetic analysis of each of these data sets was performed with respect to the following commonly used empirical models: (1) zero-order, (2) first-order, and (3) Monod. Two constant-biomass versions of each model were evaluated; one in which So (i.e., the boundary condition for substrate concentration at time equal to zero) was assumed to be equal to the measured value of the initial substrate concentration and the other in which So was treated as a …

A Promotional Campaign For A Self-Created Computer Animation "Ernie The Bird", Barbara-Leigh Chesnut

Theses

None provided.

Computerized Machine Knitting And Felted-Knits, Marie Scheponick

Theses

Continuously being drawn to the limitless variety of textures available in fabrics, especially knits, was a motivating factor and inspiration to begin this study. From the narrowest perspective of the thesis conception a goal was to create a fabric unique to the marketplace. There were three major qualities, among others, that were sought. It was to possess different layers of texture, display the sensitivity the designer had for the utilized fibers, and potential for mass production after some modifications. Over months of research, which preceded an official beginning to thesis work, there was a continuous flow of tiny samples from …

Color Variation Of The Gray Balance Target As Related To Color Misregistration In Multi-Angle Halftone Color Printing, Tuo Wu

Theses

This study was to investigate how color variation of a gray balance target was related to color misregistration in the multi-angle halftone color printing process. The dot overlap ping patterns of a gray balance target with 25%, 50% and 75% screen period off-register conditions were simulated on computer; the Neugebauer fractional areas from the ran domly selected thirty-one unit areas were calculated through the application of CAD pro grams and programing. The n-modified Neugebauer equations were then used to predict the colors of the targets and color differences between them. In order to verify the theo retical findings, an experimental …

Image Coding Using Wavelet Transform And Adaptive Block Truncation Coding, Thanit Chaiyaboonthanit

Theses

This thesis presents a new image coding using wavelet transform and adaptive block truncation coding. Images are first pre-processed by the wavelet transform and then coded by the adaptive block truncation coding. Algorithms for both monochrome and color images are proposed and experimentally studied. The adaptive block truncation coding is also modified to achieve better performance. For coding monochrome images at the bit-rate region between 0.8 to 1.2 bits/pixel, the performance of the new coding is comparable to the ones of subband codings and other image codings using the wavelet transform; however, the new coding offers less computational load. The …

"Because Social Issues Should Be Addressed", Cathrine Ackerman

Theses

None provided.

Effect Of Dietary Lipids On Rat Alveolar Macrophage Function, Sangeeta R. Mehta

Theses

An in vitro assay has been developed to measure bacterial uptake by rat alveolar macrophages. The assay is used to study the effect of a diet rich in high omega-6 linoleic acid on the phagocytic response of the macrophages obtained from young and old rats. Within the range of diets studied, no significant difference (p<0.05) is observed in the phagocytic capability of macrophages from young rats. Significant difference is observed between diet groups for the old rats (p<0.05), with the group on a fat-rich diet showing suppressed phagocytic response. Significant difference is also found between age groups for the same diet (p<0.05), older animals showing suppressed response.

Performance Analysis Of Symbol Timing Recovery Circuits Employed In Digital Communications Systems, Elisha Yegal Bar-Ness

Theses

An analytical approach is presented for the jitter performance of a timing recovery circuit consisting of a prefilter, a zero-memory nonlinear device, and a narrow band postfilter tuned to the pulse repetition frequency. Assuming first a squarer type of nonlinearity, analytical expressions for the rms jitter in the timing wave are obtained as a function of the pre and post filtering characteristics. These expressions are suitable for judging the case where the baseband signal is bandlimited. Also for some specific examples, the jitter performance of this kind of STR circuit is evaluated.

Secondly, a general type of nonlinerity is assumed, …

Size Reduction Of Polymeric Particulates By Jet Milling, Cheng Hua

Theses

A basic theory for the size reduction operation by jet milling has been developed.

Typical samples of feedstock have been analyzed using screen analysis to determine the initial distribution of polymeric particulate sizes prior to jet milling.

A statistical theory .was developed using probabilities to represent the likelihood that specific size reductions would occur. These probabilities include the effects of various equipment.

The theory was then used to predict the distribution of polymeric particulate sizes after jet milling. The agreement between the predictions and actual results was within 5 %.

Encouraged by the successful work of the simulation of the …

Modeling Of Vacuum Microelectronic Lateral And Vertical Devices, Qiong Gui

Theses

Vertical and lateral configurations of the vacuum microelectronic device have been modeled using the simulation tools. Both cone and ridge cathode structures are used. Simulation results are compared with experimental data where available. These device structures include cathode, extraction grid, anode, and deflectors. The electric field at the tip of the cathode has been calculated for tip radius as small as 0.1nm. The model used takes into account the effect of potential on all electrodes on the E-field at the cathode tip. Also the effect of cathode geometry on the E-field is detailed.

Static characteristics are based on a new …

Workstation Allocation Schemes For Response Time Improvement In A Multiserver Pc Lan, Asit V. Merchant

Theses

Microcomputer Local Area Networks have recently become quite popular. Higher demand in term of number of users who contribute a variable amount of load has led to Multiple File servers in a LAN. As a result of variable load, response time at workstations differ significantly depending not only on total load on the network but also on workstation distribution across servers. The goal of this study is to develop schemes to keep response time as low as possible and constant among workstations. This study is based on minimizing response time and containing it or keeping it constant by distributing workstations …

Implementation Of Automated Assembly, Kang H. Kong

Theses

Research has shown that about 60 - 80% wealth producing activities is related to manufacturing in major industrial countries.

Increased competition in industry has resulted in a greater emphasis on using automation to improve productivity and quality and also to reduce cost.

Most of the manufacturing works such as machining, painting, storage, retrieval, inspection and transportation have changed to automation successfully, except assembly. Manual assembly is predominant over automatic assembly techniques due to inherent assembly problem and the fact that the assembly machines lack the innate intelligence of human operator and lack sufficient flexibility to changeover when product designs and …

A Mouse-Driven Interface For Androx Ics-400, Chin-Tien Chen

Theses

A mouse-driven interface is extremely useful for software performing image processing tasks. This thesis describes an implementation of a mouse-driven interface for the Androx ICS-400 image processing board. The Androx board is housed in a Sun 4/330 running a UNIX-based operating system. The main goal of this interface is to provide a consistent and friendly user interface for image processing tasks and integrating the Sun window libraries with the Androx libraries. Various image processing tasks, such as gray scale and binary morphological operations, histogram, thresholding, filtering, spot, logical operations, arithmetic operations, zooming, scrolling, rank and image acquisition are implemented in …

Implementation Of A Production Planning And Control System In A Small Manufacturing Company, Carmelo Pernice

Theses

This thesis analyzed and discussed the implementation of a production control system in a small manufacturing firm. The basic concepts of production control were provided to give insight on the methodologies typically applied in production control systems. Overviews were presented on Material Resource Planning, Capacity Planning, and Shop Floor Control, as well as any supporting methodologies and technologies.

As with any project, some investigation was done in order to choose a system which best suits the company's needs. At Teledyne Adams, The DCD Shop Floor Control System was chosen since it is capable of handling batch manufacturing as well as …

Bad Data Identification In Power Systems, Shichun Zou

Theses

Two classes of bad data (BD) identification methods in power system state estimation are studied.

The first class is the perturbation method. In this method, the obtained measurements are perturbed a few times. Each time a state is obtained from which measurement corrections are calculated. The statistics of the corrections corresponding to a BD are different from those corresponding to a healthy data. The method uses those differences for identification purposes.

The effectiveness of different indicators is studied. These include the normalized residual, the weighted residual, and residuals incorporating the statistics of the corrections.

The success rate of using the …

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 …

3-D Structure Recovery Using Unified Optical Flow Field Approach, Anees Ahmad

Theses

Recovery of the 3-D structure that is characterized by an N^th order factorable and/or non-factorable polynomial equation is studied in this thesis. Analytical tools have been employed to analyze and solve the problem. The solution is based on the direct method, which is derived from the unified optical flow field, which, in turn, is an extension of optical flow to spatial image sequences. Least squares formulation has been employed for optimum estimation. The method used does not require the establishment of point to point correspondence, nor the estimation of the optical flow, as an intermediate step.

The theoretical results …

Connected Component Labelling On A Pair Of Parallel Systems, Imran Shahid

Theses

Hypercubes and meshes are of the most successful parallel processing structures and are widely used in image processing applications. The mesh is a natural multiprocessor architecture for image processing because an N x N image can be directly mapped onto a mesh of N x N PEs (processing elements), holding each PE responsible for one pixel, with neighboring PEs responsible for neighboring pixels. Thus, local operations can be performed on the image, or local image features can be detected in parallel, with each processor simultaneously accessing its neighbor and computing the appropriate function for its neighborhood. Meshes and several other …

Minimized Test Patterns For Sequential Logic, Chetan Patel

Theses

This thesis presents a novel algorithmic approach which can be used to reduce the total test pattern lengths for testing a sequential logic circuit. Test generation for sequential circuits has long been recognized as a difficult task. Several approaches have been made in the past to solve the problems of test generation stage for sequential circuits but they were either an extension of the classical D-algorithm or based on the random techniques. When number of states of the sequential circuit is larger and the test demands long input sequences, they can be quite ineffective for the test generation. The STALLION …

Off-Line Programming Using Igrip, Narahari K. Bhandary

Theses

AT&T's FWS-200 (Flexible Work Station) has been modeled and simulated to implement Off-Line Programming (OLP). IGRIP (Interactive Graphics Robot Instruction Program) from Deneb Robotics, Inc. has been used to simulate the FWS operation.

A GSL(Graphics Simulation Language) program has been used to simulate the chip placements during PCB assembly. The program leads the user through the motions of chip placement, and after the simulation run downloads the motion sequence to the FWS. The animation sequences of the FWS have been downloaded to the FWS on the Factory Floor using a C program, which is utilized to communicate the data to …

Analysis Of The Effects Of Wear And Tear Of Gates And Runners In The Injection Molding Process For Multi-Cavity Injection Molds In Natural Imbalance, Krishna Siva Rama Vellanki

Theses

Intuition, prior experience, and trial and error experimentation have previously been the key factors in solving the mold design and process optimization problems, when there is a dimensional change in gates and runners due to wear and tear in multi-cavity injection molding. The effect of wear and tear of gates and runners of circular and rectangular geometries, using the flow analysis package MOLDFLOW have been studied. A mold with two rectangular cavities of volume in the ratio 2:1 has been taken as the reference model for the analysis. It is observed that the amount of imbalance due to wear and …

Dynamic Analysis Of The Generalized Slider Crank, Sahidur Rahman

Theses

A numerical technique is used to analyze the kinematics of the generalized slider crank mechanism and an analytical technique to derive dynamic force equations for that mechanism has been formulated. The numerical technique used for displacement analysis is based on a combination of Newton-Raphson and Davidon-Fletcher-Powell optimization algorithm using dual-number coordinate-transformation matrices. Velocity analysis is performed by using a dual number method. Finally, dynamic force analysis is accomplished on the basis of the dual-Euler equation and D'Alembert's principle. The approach is developed in such a manner that a digital computer can detect when a solution is possible and then solve …