Digital Commons Network^™

Analytical Methodology For Atm Control Panel Design, Donald C. Johnson

Theses

This thesis presents a methodology for control panel design and layout along with a case study of an automated teller machine (ATM). A predictive model of human endurance and fatigue is developed from anthropometric, biomechanical and kinematics research. The layout problem is formulated to assign controls to locations to minimize the fatigue imposed on an operator performing a known set of tasks. A family of optimal and near-optimal layouts are found using conventional algorithms. The final hardware design refinements are suggested by human factors concerns. Ergonomic guidelines are also proposed for software aspects of the design. The methods and guidelines …

Frictional Resistance Of Geotextiles, Md. Khairul Alam

Theses

The pullout resistance of geotextiles was examined using pullout tests. A suitable wooden box with large (2 ft x 2 ft x 4 ft) dimensions was used to avoid the effect of boundary and to simulate field conditions. Two types of failure patterns were observed. For shallow embedment (<3 ft), geotextile produced a movement of the surrounding mass of sand in the shape of an inverted cone due to interlocking friction between geotextile and sand particles. The cone angle decreases with increase in depth of embedment. For embedment equal to or greater than 3 ft., no sand cone developed and the failure occurred along the interface of geotextile and sand. For 1 ft. surcharge, the increase in the pullout resistance due to combined horizontal and vertical embedment was about 30 %.

Computer Control For 2-Axis Magnetic Suspension System, Jian Chen

Theses

A two-axis magnetic suspension system. using linear-potentiometer position sensing and DC solenoids, controlled digitally by a 80386 microcomputer has been built and operated in our laboratory. Control algorithms obtained by combining the full-state feedback control law with two methods of estimating velocities are studied. One method uses a nonlinear reduced-order observer; the other uses a finite difference algorithm. The nonlinear reduced-order observer performs better in simulation but the difference algorithm takes less calculation time and is used in the implementation. The system has been operated successfully to suspend weights up to 1.2 lb. and to get a slant angle more …

Error Detection And Correction In Compressed Data, Nadir Sezgin

Theses

Encoded data is very sensitive to the channel errors. Especially if the data is compressed by Arithmetic Encoding procedure, then the error propagation is very high. The error propagation in Arithmetic Coding is studied. Exploiting the high error propagation property when compressing data by Arithmetic encoding procedure, two different algorithms have been proposed for error detection and correction. Under certain conditions these algorithms detect and with a very high probability correct the errors introduced to the compressed data.

Design Of An Advanced Control Algorithm For A Nuclear Power Plant Feedwater Control System, Randall C. Ezzo

Theses

Electric power companies with nuclear power plants have been aggressively looking for ways to increase plant safety and availability by increasing the reliability and performance of the plant's control systems. The performance of the Oyster Creek Nuclear Station's feedwater control system can be significantly improved by replacing the proportional-integral compensator with a compensator based on modern control concepts. In response to a -10 inch reactor water level setpoint change, settling time is improved from 107 seconds with 3% overshoot to 34 seconds with no overshoot.

Simulation And Modeling Of Kinetics Of Silicon Oxidation In The Thin Oxide Regime, Tirthankar Dutta

Theses

Thermal oxidation of Silicon in dry O₂, in the thin regime(< 500A) is of vital importance to VLSI device engineers, because thin layers of SiO₂ are exclusively used as gate dielectric for high performance of MOS devices. There exist a number of models to explain the kinetics of oxidation in this thin regime. However there is considerable variance among them and the reported rate constants, which are supposed to describe the oxidation process. Rather than arriving at an alternative model, the present study aims at an extensive study and simulation of existing models of oxidation in dry oxygen, in the thin regime, with a recent set of experimental data and …

A Study In Systems Integration Architecture, Sashidhar M. Prasad

Theses

This Thesis studies the two architectures OSCA and ANSA which support the ODPSE principle in the first two parts. In the third part the framework for integrating these two architectures is described. The idea of integration architectures in relation to open architectures is studied using the enabling technologies.

Redesign Of Parts And Simulation Of Flexible Assembly Cell For Safety Water Shower Assembly, Balraj Y. Gardilla

Theses

A Design for Assembly (DSA) method is used to analyze the safety water shower assembly and to redesign the components with emphasis on meeting the criteria of allowing for flexible Assembly Cell (FAS). An Expert System is developed to select the right Assembly using VP-Expert. This thesis contrasts the old and new safety water shower assembly designs and describes the design of a final Flexible Assembly Cell. A PUMA 550 robot was investigated for use in the cell design. The flexible Assembly cell is simulated on silicon graphics using the IGRIP software. The economics of each part presentation method is …

Computer-Aided Process Planning (Capp) Sorich, Sohail Pirzada

Theses

The last two decades have witnessed the increasing role of the computer in the process planning function. This has been further enhanced by the advent of the knowledge based expert system, and its impact on Computer Aided Process Planning (CAPP). CAPP has emerged as a strategic link between design and manufacture. This thesis discusses the various methods used in the process planning function. Group Technology (GT) plays a pivotal role in establishing CAPP. The utilization of Artificial Intelligence techniques in CAPP is listed. This study also presents an Interactive Software adaptive to product/part configuration variables.

Software Development For Analysis Of Stochastic Petri Nets Using Transfer Functions, Aman U. Jamwal

Theses

This thesis research is an implementation of a closed-form analytical technique for study, evaluation and analysis of Stochastic Petri Nets (SPN). The technique is based on a theorem that an isomorphism exists between an SPN and a Markov Chain. The procedure comprises five main steps: reachability graph generation of the underlying Petri net, transformation of the reachability graph to a state machine Petri net, calculation of transfer functions, computation of equivalent transfer functions via Mason's rule, and computation of performance parameters of the SPN model from the equivalent transfer functions and their derivatives. The software is developed in UNIX using …

Biomass Conversion Of Solid-Waste (Newsprint) Into A Clean Fuel (Ethanol) By Enzymic Hydrolysis And Fermentation, Nimesh V. Gandhi

Theses

A feasibility study has been performed with two bioprocesses for conversion of newsprint waste to an environmentally safe fuel (ethyl alcohol) and carbon dioxide.

The following areas were investigated to accomplish this task: one hour pretreatment of newsprint by attrition, saccharification of paper slurry to glucose by cellulase and cellobiase, effects of pH, temperature and concentration of enzymes on conversion of paper to sugar, fermentation of glucose to ethanol and carbon dioxide by immobilized yeast, and simultaneous saccharification and fermentation of paper to ethanol and carbon dioxide using enzymes and immobilized yeast.

Results indicate that the enzymic hydrolysis of newsprint …

Experiments In Aerobic And Anaerobic Biodegradation Of Trichloroethylene, Qiong Liao

Theses

The removal of trichloroethylene (TCE) from industrial waste has been intensively studied in recent years, Biodegradation has been determined to be an effective treatment for TCE in the environment. Many researchers have studied the biodegradation of TOE and obtained successful results based on the use of specific isolated bacteria. At the NJIT Biotechnology Laboratory, a new method is being developed in which immobilized activated sludge is used to degrade several toxic chemicals in various reactor configurations. The objective of this research is to determine if these methods can be extended to treat TCE.

Activated sludge from a wastewater treatment plant …

Conditional Artificial Dielectrics ; Fabry-Perot Etalon, Ling-Yi Hu

Theses

Fabry-Perot etalons are optical resonators comprise of two mirrors and a spacer layer. By embedding a thin, photo-sensitive layer ( Conditional Artificial Dielectric - CAD layer ) in the middle of the spacer layer, we were able to photo-control the transmission properties of a Fabry-Perot etalon. Different structures have been analyzed and measured to find that a change of .01 was photo-activated in the refractive index of the Conditional Artificial Dielectric layer.

The Effects Of Oxygen Tension On Nitrate Reduction By Pseudomonas Isolate, Hao-Jan Hsing

Theses

It is a generally accepted concept that nitrate reduction only occurs under anaerobic conditions. Oxygen inhibits denitrification. However many studies of nitrate reduction under low oxygen tension have shown what has been called aerobic denitrification. This project examines the process of aerobic denitrification.

Oxgyen affects cell growth and the amount of nitrate utilized. When oxygen is absent, the cell growth rate is lower and nitrate utlization is higher then when oxygen is present.

Nitrate is reduced to nirite under anaerobic conditions. Nitrite accumulation did not continue increase. But increased then decreased producing a "Z" shaped graph when plotted.

Measurement Of The Removal Of Selected Vocs From A Municipal Treatment Plant, Hong Yu

Theses

Industrial wastewater contains a variety of volatile chemical constituents. The large majority of the volatiles are organics. Many of these volatile or¬ganic compounds (VOCs) end up in the effluent to wastewater treatment plants. It is necessary to estimate the emission of the VOCs from sewerage plants in order to study the fate of these volatile organic compounds.

This study focuses on the estimation and comparison of the emission of 28 volatile organic compounds from the water and air in four operation units of Linden Roselle Sewerage Authority (LRSA) wastewater treatment plant. The removal rates of these target compounds have been …

Minimum-Time Control For Submarine Interception, Zaiping Chen

Theses

This thesis attempts to offer a possible improvement for conventional anti-submarine system which is mounted on warship. It consists of two parts: the control law and its realization concerning the particular problem. The control based on optimal theory is devised for three-dimentional minimum-time interception. A microprocessor system is also designed to achieve all necessary steps to track and attack the target. The thesis focuses on the question of how to launch a group of subcharges to destroy a submarine cruising under water: find the optimal trajectory by developing a numerical method to solve the nonlinear dynamic system and design a …

Influence Of Heavy Metal Concentration On Rotating Biological Contrator Performance, Huei-Sheng Cheng

Theses

Seven heavy metals ( Fe⁺², Mn⁺², Zn⁺², Ag⁺, Pb⁺², Cu⁺², Cd⁺² ) at various concentrations were investigated in a Rotating Biological Contactor (RBC) system. The experimental data indicated that the degree of heavy metal toxicity in the biological system mainly depended on the ratio of inflow heavy metal concentration to organic loading. The optimal ratio of heavy metal to organic loading was determined on the basis of the maximum removal of chemical oxygen demand (COD) under different operating conditions. In addition, the effect of heavy metal on …

Design And Development Of An Automated Assembly System In A Discrete Manufacturing Environment, Sandeep K. Desai

Theses

This work is dedicated to extend the technology of automated assembly to include small and thin parts, light in weight. As the parts are thin a problem exists in the feeding process and orientation. The objective of project is to overcome this difficulty. The main theme of this thesis is to reduce labor cost and to improve productivity and quality of assembly operations by introducing low cost automation in the companies having discrete manufacturing environment.

An example of assembly involving a thin part has been selected. Two components from an electrical switch assembly are chosen, namely the spring and rivet. …

A Color Petri Net Simulation Tool, Sanjaykumar V. Desai

Theses

A user friendly, modular and highly interactive graphical tool for drawing, editing and simulating color Petri nets is developed. The tool is designed to model concurrent and interlocked systems, such as flexible manufacturing systems, communication protocols and computer systems. A Color Petri Net(CPN) has a more concise graphical system representation than a standard Petri net, because net entities in CPN carry information. The CPNS(Color Petri Net Simulation) tool simulates a net having conflicts, reveals deadlocks, and creates a log file with the state history of the system yielding performance measures.

An Implementation Of Bionomial-Qmf For Subband Coding Of Speech, Feng Chen

Theses

A real-time subband speech codec is implemented by the author on TMS320C25 digital signal processor based hardware for speech compression down to 0.25 bit per sample.

The Binomial Quadrature Mirror Filters (B-QMFs) are employed as the basic block for the hierarchical, dynamic tree, analysis/synthesis filter bank. After the analysis, available bits are optimally allocated among subbands. Band statistics are updated to overcome the nonstationarities of speech signal.

The energy compaction performance of this codec is compared with different subband and DCT in simulations for speech signals and AR(1) source models.

It is shown that the speech codec implemented provides an …

The Biological Basis Of Schizophrenia, Franz Sugarman

Theses

None provided.

Wanplex And Water Canyon, Hsin-Chen Wang

Theses

None provided.

Deuteriohalogenation Of Norbornene Via Organoborane, Bo Han

Theses

A stereospecific path way for the net addition of deuterium halide to a double bond was investigated using norbornene as the substrate. The polycyclic internal olefin, norbornene, has been chosen as the substrate due to its stereochemical aspects and its ability to reveal mechanistic information. The combination of hydroboration followed by halogenation in the presence of boron trihalide provides a method for the net a/trf-Markovnikov hydrohalogenation of alkenes. The Lewis acid-catalyzed halogenation of organoboranes proceeds with mostly retention of configuration at the reaction center as shown by the formation of largely exo-2- halonorboranes from fri-ejco-norbornylborane. Deuteriohalogenation of norbornene provides NMR …

Conscious Conscience, Michael B. Easley

Theses

None provided.

Promotional Program For The Center For Graphic Design History, Kanchen Rajanna

Theses

None provided.

Comparison Of Ellipso-Polarimetry And Dark-Field Methods For Determination Of Thickness Variations In Thin Films, Craig S. Eubanks

Theses

A comparison of methods has been conducted of the optical techniques of ellipso-polarimetry, and dark field microscopy to determine the resolution of the spatial variations in thickness within thin films in real time. The ellipso-polarimeter is an adaptation of normal point ellipsometric methods to accommodate assessment of spatial distribution, but unlike the traditional methods, will utilize the image as qualitative information rather than quantitative. This is achieved through the use of a coherent light source, beam expander, and collimating/focusing optics for the throughput of the system, and the use of a CCD camera to collect the two-dimensional signal for display …

Private Settings, Daniel Richard Kummerow

Theses

None provided.

Pendulum: Controlling An Inverted Pendulum Using Fuzzy Logic, Scott Houchin J.

Theses

None provided.

Contextual Trappings: A Strategy Of Contradiction, Richard Metzgar

Theses

The focus of this thesis is to examine a multiplicity of ideas in which the presence of contradiction is the unifying component. This "process" of examination has been decidedly "expansive." I am emphasizing process and expansive because these terms could best describe the underlying philosophical attitude driving this body of work; process in relation to both conceptual as well as material considerations. Conceptually, I have given myself the opportunity to examine a broad range of issues, understanding the realization that all levels of worldly stimuli become raw material for an artistic statement. Similarly, in regards to material approaches, selecting the …

The Effects Of Deinking On The Coating Compounds Used On Carbonless Business Forms, Brooke Merrill Tinney

Theses

The purpose of this study was to determine what effects different deinking processes have on the coating compounds used on carbonless forms. Three deinking processes were studied: repulping without deinking chemicals or bleach, deinking using deinking chemicals only, and deinking using both deinking chemicals and bleach. None of the processes were successful at completely removing the oil, which is located in the microcapsules, or the resin, which is used to coat the coated-front portion (CF) of the carbonless form. Of the three deinking processes studied, simple repulping was most effective at eliminating the resin used in the coatings, while the …