Engineering Commons^™

Novel High Resolution Columns For Gas Chromatography, Douglas Kenneth Stout

Theses

A study was conducted to determine if BN would be a reliable solid phase or support for open tubular capillary columns and to develop a technique for the deposition of BN on the column's inner walls. The theoretical plate results for constructed precoated BN columns demonstrated that BN can be employed as solid stationary phase, but evinces low separation characteristics due to the nature of the drawing process. The development of a simple BN precoating process was tested on various diameter capillary columns and found to provide an excellent support for highly polar liquid stationary phases. Capillary columns with a …

Simulation Of Hvac Systems And Library Building Of New Jersey Institute Of Technology Newark, N.J., Muhammad A. Syed

Theses

The HVCASIM⁺ Building Systems and Equipment simulation program package developed at National Bureau of Standards has been used to simulate the building load and HVAC systems of N.J.I.T. library building, This report describes the procedure and strategy adopted to simulate the library building and the HVAC systems.

The library building has been simulated with two different sets of parameters, first with original design data and then with modifications for energy conservation, which ware suggested by the energy management consultants M/s Engineers Incorporated, as a part of the New Jersey Department of Energy School Grant program.

The results of tho …

Probabilistic Technique In Power Flow Analysis, Dun-Ren Tzeng

Theses

This thesis describes and examines a technique which permits the power flow problem in a power system to be analyzed probabilistically. Both the deterministic and the probabilistic power flow theories have been presented. A mathematical model and a program have been developed to carry out the probabilistic power flow calculation. Two power systems and seven different loading cases have been used to test the technique. The results including the sensitivity coefficient matrices, the expected line flows with their variances, and 25 of 176 probability density function curves, have been shown and discussed. An easy way to predict the possible abnormal …

A Cad Tool For Edif Model Generation, Sri Nagesh Valluri

Theses

This thesis describes a new CAD tool designed to create models proposed by Electronic Design Interchange Format steering committee. In its present form the system can generate models for standard SSI and MSI devices. The menu driven window based fillup the form features of the tool allows a novice user to provide structural and timing informations of the device from any manufacture's data book. The software performs online checking of the user data and guides them to generate the correct model.

Benzene Losses From Aqueous Solutions During Geotechnical Laboratory Testing, Konstadinos Vogiatzis

Theses

This study addressed the problem of using volatile organics in geotechnical laboratory tests. Previous experiments with volatile organics such as benzene and trichloroethylene with soils had shown significant concentration losses during the tests. The purpose of the study was to identify the sources of loss and to quantify the magnitude of loss.

Vapor - liquid equilibrium was used to predict theoretical evaporation losses of benzene from aqueous solutions. Calculations were made for both an infinite volume of air and for a finite volume. Experiments were then performed to verify the theoretical predictions.

Other losses considered were those during solution preparation, …

Weighted Least Square State Estimation In Power System, Jinn-I. Wu

Theses

In this thesis two methods for power system real-time monitoring are presented, programed and tested. Method 1 is not new and method 2 is a modification of method 1. The two methods are comparable in performance and they solve the problem satisfactorily.

These methods are iterative and the problem of choosing a convergence criterion is unexplored yet. This problem has been discussed, guidelines are presented to select an optimal convergence criterion.

The concept of confidence level and techniques for error detection are investigated. programs to detect bad data and to establish a confidence level have been written and some tests …

Implementation Of Xilinx Development System And Xilinx Lca Application, Youcheng Wu

Theses

The Xilinx Application-Specific Integrated Circuit (ASIC) is a large array of programmable logic cells. Creating logic design using the Xilinx ASIC offers ease of implementation, high function density, design flexibility and lower consumption of supply power. The techniques of implementation of system and design with Xilinx CAD/CAM System include system analysis, modification, update, optimal design algorithms and real circuit emulation.

This thesis combines the setup and operation of the complete Xilinx system, and implement Xilinx LCA into 8052AH-BASIC based Single Board Computer and user's menu of real LCA chip evaluation Board. It presents our own design, construction, test and demonstration …

Current Trends In Facilities Planning, Chaochou Yang

Theses

In the past year the costs of computing and computer graphics have come down dramatically. At the same time, the computer graphic system has become easier to use, As a result, computer support has become more costeffective than before.

In this thesis, the writer describes types of systems first, then looks at computer usage. He first defines the technologies of DSS, CAD and MIS, then takes a detailed, step-by-step look at facilities planning and the various ways in which computers are used for support. Well-conceived planning is an important prerequisite to effective computer use. The remainder of the thesis expands …

The Study Of The Response Of Nucleus Ambiguus Neurons To Blood Pressure Changes, Adrienne Zoe

Theses

The purpose of the project is to aid the study of the response of nucleus ambiguus neurons to changes in blood pressure. The sampling runs indicate that there is a correlation between blood pressure and neuron activity for some of the neurons monitored. Some neurons react to blood pressure increases by Increased neural firing rate while others react by decreased neural firing rate. Some neurons do not respond to blood pressure manipulation comprising the non-vagal neurons. A system was developed for the DIN PC to collect electrocardiogram, blood pressure, and neuron activity from a dog, and to perform non-real time …

Geometric And Enthalpic Calculational Study Of Monosubstituted Cyclobutanes ; Attempted Synthesis Of 1,3-Diphenyl-2,2,4,4-Tetrafluorobicyclo [1.1.0] Butane, Jose Luis Reyesgavilan

Theses

The work undertaken in this thesis is in two parts. In the first, the structure and heat of formation of substituted cyclobutanes were studied via the computer program MMII using an IBM PCXT personal computer with a math co-processor chip. Structurally, a trend was seen to be followed in which bulkier substituents were pushed away from any steric interaction with the ring. This was accomplished by having the latter alter its puckering angle, C2C1C4 angle, HCX angle, and to a smaller extent, the bond lengths immediately adjacent to the substituted carbon atom. This results demonstrated that the ring was very …

Wear And Development Of Wear Testing Methodology, Tirumalai S. Suresh

Theses

The existing wear and friction theories, and wear testing methods have been analysed to meet the objective of this study. One of the key factors in the analysis of a wear problem is the computation of wear and friction coefficient for a material, under real operating conditions. A new wear testing methodology has been developed and a wear tester has been designed and assembled. The tests have been performed at constant sliding speed and different applied loads for a Cast-Iron - hardened Steel pair.

High Tech Transition And The Organization, Chetan H. Shah

Theses

The future outlook of any corporation depends upon the resourcefulness of those who manage the planning and operating functions of the business. Time and accuracy are two critical criteria in effective managerial reports for decision making. The electronic computer is a welcome addition into the industry. While its applications to payroll, accounting, sales, and inventory have been extensive, computing has nevertheless been criticized. This study concentrates on determining the impact computing has had on the managers and especially on the people working in the organization from clerks to the top level management.

While an investigation of the existing literature was …

Xilinx Asic Design For A Single Board Computer, Hong Zhan Ye

Theses

Xilinx Application-Specific IC is a new kind of programmable cell array with high design flexibility and functional density. It not only has excellent circuit-board utilization and low power consumption, but it also offers easy implementation with lower engineering cost and very short production-rampup period.

This thesis provides a complete and specific procedure for implementing Xilinx LCA into a 8052AH-BASIC based single board computer with XACT development system. It verifies all the results from debugging SBC2064 design using both XACT query system and P-SILOS simulator.

The technology of implementing a whole system design with software and hardware fully proves the possibility …

Time Series Analysis Of Respiration Component In Heart Rate Variability, Anuradha Ramaswamy Iyengar

Theses

Time series signal processing techniques (Fourier based) were applied to analyze the relationship between heart rate and respiration. This analysis takes advantage of the different timing charecteristics of the autonomic nervous system inputs to analyze their influence on the heart rate.

Data from three experiments were analyzed. The first set of data was from helicopter pilots of the US Army. They injected atropine into themselves on certain days. The effect of atropine on the heart rate spectrum and the relationship between heart rate and respiration was studied. It was found that atropine abolishes the respiration peak in the heart rate …

Theoretical Studies Of A Norbornane Mimic Of Acyl-Alpha-Chymotrypsin, Pin-Nan Chen

Theses

Molecular mechanics calculations were used to investigate the structural flexibility of the norbornane mimic which is a model of an acyl-alpha-chymotrypsin intermediate. The Amber molecular mechanics force field was used to perform the conformational analysis.

Comparison of the optimized conformations of different energy has shown the relative structural rigidity of this molecule. Structural superposition of the minimized mimic to the native conformation of chymotrypsin shows that the mimic has a very similar spatial arrangement of its functional groups compared to the catalytic triad of the real enzyme.

Molecular electrostatic potential maps calculated in planes parallel to the average plane containing …

Hydrodechlorination Reactions On Silica-Supported Rhodium Catalysts, Yung-Ming Chen

Theses

The objectives of this study were to investigate the pathways of the hydrodechlorination reactions over silica-supported Rh catalysts as well as identify selectivities and deactivation properties.

Reaction of 1,2-dichloroethane with hydrogen over Rh/SiO₂ catalyst was studied in the temperature range 200 to 300°C. Formation of two intermediates was proposed while 1,2-dichloroethane was adsorbed on the catalyst, the reactive intermediates then produce ethane, ethylene, chloroethane and methane. From the methane formation, it was inferred that the ethane hydrogenolysis occured over the Rh/SiO₂ catalysts. Higher conversion to C₁ and C₂ hydrocarbons was observed at higher reaction temperature. The …

Separation Of Chromium From Waste Sludges By An Electric Membrane Process, Freeman Nai-Tchun Ho

Theses

The process is characterized by using metallic membrane as a filter which is charged by a separate DC-power supply and it may become experimentally very effective in increasing the separation potency and migration flux. The technique of integrating migration with electromembrane was evaluated for the removal of chromium. The transport was found to be adequately described by an equation in which the rate is proportional to the chromium concentration. The rate of dichromate ions transported across the membranes and the gel water content of membrane increased when the ratio of electromembrane potential and cell system potential was increased. The back …

Robotic Simulation Package For Personal Computers, Amitava Jana

Theses

A software package for three dimensional wire frame modeling of an educational robot is developed for personal computers. This package can be used by students as well as robot technicians to study basic principles of robot kinematics. The interactive simulation software supports both the joint-level and world-level motion control, enabling user to understand teach-pendant programming as well as robot level off-line programming. The desired orientation and position of the robot hand can also be specified through a homogeneous transformation matrix, allowing an advanced student to learn the concept of world modeling in the design of robot work cells. To help …

A Study Of The Dynamics Of Microbial Competition For A Single Resource In A Chemostat Between Reversible Attachment To Solid Surfaces, Pericles Theofilos Lagonikos

Theses

It is known that two microbial populations competing for a single non-renewable resource in a homogeneous environment with time-invariant inputs cannot coexist in a steady state. The case where two microbial populations exhibiting reversible attachment to the walls of a chemostat compete for a single resource is studied theoretically. Because of the cell's attachment to the walls, the environment is no longer homogeneous. The present study considers the case where the attached cells form no more than a monolayer. The Baltzis-Fredrickson model is used to represent the attachment to the walls. In one system the attachment of cells of the …

Just-In-Time In The United States : Culture And Competitive Manufacturing, Wolfram Pabst Von Ohain

Theses

Richard Schonberger, 'the' Guru of Just-in-Time' in the United States, wrote in the preface of his 1986 book World Class Manufacturing:

"...Japanese success is rot mature-based. Its basis is a quite different set of concepts, principles, policies, and techniques for managing and operating a manufacturing enterprise. All of it is easy to understand, not hand to accept (once known), eminently teachable and learnable, and not so difficult to apply.

If Just-in-Time is such 'a piece of cake' one would expect that most American companies would practice Just-in-Time. As commonly known, most American companies do not follow the philosophy of Just-in-Time. …

On Longitudinal And Transverse Shear Spring Constants At The Juncture Of Piping-Nozzle, Chihwei David Chen

Theses

This thesis investigates the longitudinal and transverse shear spring constants at the juncture of a radial nozzle and a cylindrical shell.

Due to the difficulty of arriving an analytical solution to these constants, the " ANSYS" program has been employed to calculate them numerically. These results are reported in tabulated forms. Plots for these spring constants K_x, K_z in terms of parameters Beta ( nozzle radius / pipe radius ), Gamma ( pipe radius / shell thickness ) and shell thickness are also presented in this thesis. A numerical example is given to facilitate the design analysis.

Groundwater Contamination Studies At A Sanitary Landfill In New Jersey, Yau-Chorng Chien

Theses

Edgeboro Landfill, a site used for the disposal of municipal and industrial refuse, is one of the largest landfills in New Jersey. The landfill has been in operation since 1954, serving the solid waste disposal needs of local townships and a major portion of Middlessex and the surrounding counties. The landfill was not equipped with a liner and a leachate collection system at the time of start up. The leachate collection line around the landfill, on-site leachate treatment by three stabilization ponds and subsurface cut-off wall were provided to minimize the discharge of leachate into adjacent waters in 1979. Groundwater …

Office Automation, Nanda Kishore Krishnaiah

Theses

This thesis gives an overview of the technology available to management for implementing office automation. It explores the methodology for creating an integrated automated office. It discusses methods for linking automated offices through the concept of networking and it addresses the major behavioral aspects associated with the implementation of automation in the office. The most significant part of this thesis is that the conceptual design model is illustrated by the application to an actual case study. The author was involved as a team member in an automation project with the Center for Information Age Technology, at New Jersey Institute of …

Mizer : A Ruled Based Cad Tool For Logic Optimization, Sandip Mukerjee

Theses

This objective of this research was to develop a knowledge based CAD tool, to address the problems of Logic Design. MIZER is an expert system, that accepts functional specifications of a logic circuit and connectivity description of its implementation to generate an optimal design. This information is then used to develop a hazard free circuit that brings about an optimization in area and timing. It stores the newly created design into its knowledge base with the approval of the designer, for future use.

Analysis Of An Inertial Navigation System On A Silicon Wafer, Ashok K. Parida

Theses

This thesis describes a self-contained inertial navigation system for commercial vehicles. It is low cost miniature system employing some of the newest techniques in micromechanical and microelectronic hardware.

The system employes an array of vibrating tuning fork gyros, a number of feedback force-balance accelerometers, and a central processing unit, all fabricated on a silicon wafer using integrated circuit fabrication technology. A miniature platform (size of a golf ball) driven by gearless torque motors is used to provide a quiet environment for the gyros and accelerometers. There are radio links between components that are on and off the platform (eliminating need …

Effect Of Stucture On The Static And Fatigue Properties Of Some Al-Si Alloys, Samia Monir Amin Iskander

Archived Theses and Dissertations

No abstract provided.

Deformation And Fracture Of Zinc-Aluminium Alloys Under Static And Dynamic Compressive Loading, Hanadi A Ghoneim

Archived Theses and Dissertations

No abstract provided.

Evaluation And Improvement Of Production Quality Performance Application At Hadisolb, Helmy Nada

Archived Theses and Dissertations

No abstract provided.

Highway Drain Depth And Soil Stability, Mizher Al-Himdani

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The presence of moisture in the soil reduces its shear strength. After the rain or snowmelt, the high percentage of moisture in the subgrade of highway, causes the instability resulting into failure of the highway due to high water table. Therefore, it is essential to install a drainage system to remove the excess moisture from the subgrade of highways to avoid its failure.

In the present study, six different soil samples have been studied to observe its failure by triaxial shear strength and corresponding moisture content was noted. The tension applied to remove moisture was converted to equivalent drain depth. …

Performance And Design Of Labyrinth Spillway, Nosratollah Amanian

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In recent years, the general interest in the safety of dams and reservoirs has grown appreciably. This research describes the application and design of labyrinth weirs to improve the performance of existing reservoirs and also to be used for the construction of new dams. The parameters that can affect the performance of labyrinth weirs are discussed. Tests were conducted on normal linear weirs with four different crest shapes to determine the rate of change of discharge coefficient when each type of weir is used. It is found that weirs with rounded-crest shape can pass more flow than other types of …