Digital Commons Network^™

An Improvement In The Chemical Engineering Simulation System, Roman Andreyuk

Theses

The accurate design of chemical processing plants is important to the chemical engineer. The original version of CHESS (Chemical Engineering Simulation System) greatly reduced the amount of time which previously had to be spent on the design of such plants by providing the engineer with a package which simulated some of the more common pieces of chemical processing equipment found in a typical chemical plant.

The present version of the Chemical Engineering Simulation System (CHESS2) presents a significant improvement over the original version. The improvement was achieved by expanding the thermodynamic package, offering the user a choice of methods by …

Proposed Product Plan For A High Growth, High Technology Organization, Alan R. Eschbach

Theses

Analyzing and consequently redefining a corporation's product line or mix is an important task facing all manufacturing organizations. While this task is usually addressed in detail as part of an organization's business plan, it can be very disconcerting when an organization realizes that the markets and products that got them to where they are now will not necessarily be the ones that will give them the growth that they would like to realize. Redefining the product line can be even more critical to young, high technology organizations who have never done it before and have found themselves facing the possibility …

Nomographs And Tables For Simplified Thermal Analysis Of Power Piping, Dhanjibhai N. Patel

Theses

This Thesis develops Nomographs and Tables for simplified thermal analysis of " Power Piping." It gives the length of required Thermal Relieve Leg when a set of piping parameters such as, pipe size, pipe material, operating temperature and pipe length are given.

The Nomographs and Tables developed here can be used

1. to determine the primary piping layout, piping route, support location etc. before vigorous conputer analysis is performed.

2. to help the Field Engineer on the plant site to make " on the spot " decisions on pending piping route changes.

Two Nomographs are developed in this Thesis. One …

Computer Simulation Of The Human Hypophysial-Ovarian System, Robert Charles Blencowe

Theses

In order to more adequately simulate the human pituitary-ovarian cycle further refinements were made to the original Bogumil and Feng computer models. This involved the inclusion of equations which mathematically describe the peripheral conversion of prehormones and a subroutine showing the effect of plasma proteins, TeBG, CBG, and albumin on the total concentration of estradiol, progesterone, testosterone, androstenedione, dehydroepiandrosterone and estrone.

Once the models were functioning properly, values for the normal state and for the disease condition, Polycystic Ovary Syndrome (PCO), were obtained. In most cases there exists good agreement between the results reported in the literature and those generated …

An Assessment Of Job Attitudes Held By Hourly Workers At A Food Processing Plant, Charles J. Sheahan

Theses

This study applied Vroom's instrumentality-valence model to an assessment of the overall job attitude of hourly workers at a food processing plant. The specific job factors relating to the formation of overall job attitude are described and the managerial implications of the results are discussed. A short discussion of the relationship of these employees' attitudes to Herzberg's motivation-hygiene theory is also presented.

The results of the study indicate a moderate degree of job satisfaction based on Vroom's model. Additionally, the correlations of specific instrumentality to specific valence give a strong indication that the subjects value rewards they perceive as attainable, …

The Operational Utility Of The Walton-Mckersie Attitudinal Structuring Model In Collective Bargaining, Donald Warren

Theses

This work is an heuristic inquiry into behavioral change theory designed for application to labor/management interaction in collective bargaining. The theory itself was postulated by Richard E. Walton and Robert B. McKersie in their book A Behavioral Theory Of Labor Negotiations. The principles of their theory are highly axiomatic and their importance and validity can only be recognized through applied empirical analyses that demonstrate or refute its concept.

The aspect of the theory which is the focal point of this research pertains to the structuring and restructuring of attitudes and attendant relationships resulting from the collective bargaining process. The objective …

The Role Of Electrical Noise In Screening Transformers Prone To Failure, Rajeev D. Shirodkar

Theses

Insulation used as a barrier between the high voltage and low voltage windings of a transformer has sites of in- homogeneities like pinholes, cracks or voids, developed during the manufacturing process. Thus, these minute air pockets are stressed much more than the solid dielectric, on the application of a voltage stress, because the dielectric constant of the solid insulation is many times that of the air dielectric. As a result, excitation or ionization takes place in the air (gases). The amount of excited or ionized molecules is proportional to the volume of the inhomogenei- ties within the insulation.

Therefore, experiments …

Behavior Of Composite Steel-Fibrous Concrete Beams, Avijit Mookerjee

Theses

This research thesis on composite steel-fibrous concrete is based on a series of beam tests conducted in the Structural and Concrete Laboratory of the New Jersey Institute of Technology.

In the first series of tests, two twenty-foot two-span continuous beams were tested. In the first beam, plain reinforced concrete was used in the construction of the composite beam. The second beam had 1.5% by volume of steel fibers in the concrete.

In the second series, four composite T-beams were tested. Two of the beams had 1% of steel fibers by volume. The other two beams were constructed using plain concrete. …

Prediction Of Enthalpies Of Mixing With A Generalized Unifac Model, Steven Otto Hetzel

Theses

The UNIFAC model of Skjold-Jorgensen et al (1980), which incorporates a general temperature dependence for the coordination number is used in the correlation and prediction of heats of mixing for binary liquid mixtures. Correlation and prediction of n-alkanes and cyclic-alkanes with alkenes, ketones, aldehydes, esters, ethers, acids, nitriles, nitroalkanes, and aikynes have been performed in a temperature range of 0 to 100°C. Typical prediction and correlation errors of 5 to 20% are obtained using this model.

Gallium Nitride Film Deposition By Ionized Cluster Beam Epitaxy, Ghulum Bakiri

Theses

An experimental Ionized Cluster Beam System similar in design to the one developed at Kyoto University in Japan was. designed and constructed in the Microelectronics Laboratory at NJIT. This involved making the working drawings, having the parts machined and then assembling the system in a vacuum system together with the necessary variable power supplies, meters, controls, gas inlets, cooling water connections, etc.

Eleven deposition runs were then attempted to grow gallium nitride utilizing the system constructed. In a typical deposition run, gallium was vaporized from a boron nitride crucible at 1000° C and allowed to expand through a 0.5 mm …

Finite Element Analysis Of The Femoral Head, Ghandikota Ramamurthy

Theses

Femoral component loosening and Prosthetic stem fractures have renewed interest in conservative alternatives to conventional total hip replacements. One such alternative is the concept of surface replacement. The objective in this study is a finite element analysis of a femoral surface replacement cup with Particular attention given to the interfacial stresses. An axisymmetric model with a grid of two-dimensional isoparametric elements is generated. This study utilizes an adaptive model so as to include the effect of bone remodeling in response to stress. The stiffness is considered to be linearly proportional to the stress in the femoral head and neck. Isotropic …

Mathematical Modeling Of Mass Transfer In A Hollow Fiber Dialyzer, Tzyy-Kai Yu

Theses

A mathematical model describing the flow characteristics and mass transfer has been developed for the hollow fiber dialyzer in countercurrent dialysis.

The theoretical expressions are developed from a typical Graetz problem for the stream side, and a first order differential equation for the dialyzate side. The solution of the dimensionless concentration profile is obtained as a summation of orthogonal eigenfunctions in closed form, which are given as product of an exponential function and a confluent hypergeometric function.

The analytical solution of the model has been examined by adjusting system parameters, like Sherwood number, Peclet number and the geometry of the …

Automation Considerations For A Manufacturing System, Marvin Fachuan Wang

Theses

This thesis examines the present manufacturing system of Apollo Valve Company, a solenoid control valves manufacturing. After analyzing the present system, the automation considerations and proposed new system were recommended.

Chapter 1 presenti the background material of automation and manufacturing system. The development of the automated factory is also included. The plant layout, organization, and departments functions of the present system are briefly described in the Chapter 2. Analysis of the present manufacturing system by the production volume, by plant layout, and by the manufacturing operations, is discussed in Chapter 3.

Proposed automation considerations and improvements, such as group technology …

One-Dimensional Compressible Flow Analysis : Isentropic And Normal Shock, Su-Bo Wong

Theses

A computer program to compute and analyse one-dimensional isentropic compressible flow through variable cross-sectional area with or without a normal shock is developed. The program is written in the "FORTRAN LANGUAGE".

In this work, the area change is the predominant cause of change of flow condition. One of the advantage of this program is set on general uses for isentropic flow. In common practice, the values of the isentropic flow property ratios were tabulated or graphically presented as function of the Mach number with a specified specific heat ratio, K (normally K=1.40 was presented). With todays technology, the most versatile …

Behavior Of Channel-Shaped Reinforced Concrete Columns Under Combined Biaxial Bending And Compression, Dureseti Chidambarrao

Theses

The inelastic behavior of irregular shaped reinforced concrete columns has been a constant concern for a structural engineer, to design a safe and economic structure in modern buildings and bridge piers. The shape of the elements in a reinforced concrete structure may be used to optimize its structural strength, to make better use of the available space, to improve the aesthetic appearance of the structure, or to facilitate construction. Due to the locations of the columns, the shapes of the buildings and the nature of the applied loads, many columns are subject to combined biaxial bending and axial load.

Seven …

Failure Surface For L-Shaped Reinforced Concrete Short Columns, Mon-Chen Liu

Theses

Combined bending and axial compression for L-shaped reinforced concrete short columns is a common problem. But the present ACI Building Code (ACI 318-77), handbooks and texbooks pay no attention to this problem. A numerical analysis and computer program developed by Hsu fora reinforced concrete member subject to biaxial bending and axial load has been used Using this computer program, the interaction diagrams and failure surface were developed for L-shaped members under combined bending and axial compression. A comparison between theoretical and experimental results was included to examine the validity of failure surface.

Analysis And Tests [Of] L-Shaped Reinforced Concrete Column Under Combined Biaxial Bending And Axial Compression, Alaedin Majlesi

Theses

A total of five tests on biaxially loaded column specimens were conducted to investigate the complete behavior of load-deformation characteristics from zero load until failure. The specimens were tested under horizontal position with 60 ton hydrolic jack. Pin end was used for both ends to obtain higher accuracy of plotting curves.

Two specimens were tested with dial gages to obtain load-deflection curves and the other three specimens were tested with demec and strain gages to obtain load strain and moment-curvature curves. The strain gages were measured by weston bridge and deme-gages were measured by mechanical dial gage.

The above moment-curvature …

Investigation Of The Behavior Of Ferromagnetic Liquids In Magnetic Fields, Avinash Narcinva Velingker

Theses

Ferromagnetic liquids are superparamagnetic in character possessing paramagnetic as well as an almost loose ferromagnetic behavior. The magnetization response has been treated by classical mathematical techniques and computer methods for different excitation functions.

Also, experimental work has been carried out to study the gyromagnetic phenomenon exhibited by ferric fluids when subjected to external magnetic fields. The experimental set-up consists of a solenoid wound around a glass tube channel through which ferrofluid can be circulated at different velocities. The experimental results revealed that saturation occurs at certain level as the field intensity is increased and prior to this point, resonance takes …

Forecasting Construction Product Demand, Robert Singerline

Theses

This is a synopsis of practical and theoretical methods used in forecasting construction product manufacturers' product demand. The practical methodology was accumulated by the author while working as a consultant for the Dodge Construction Information Division of McGraw-Hill. The objective is to review and update the various methods of forecasting with illustrations of current practices that are being used to forecast building product demand. The resulting work will help management in the planning process.

Prediction Of Heats Of Mixing In Hydrogen-Bonded Solutions Using A Unifac Model, Peter John Stathis

Theses

A model for the correlation and prediction of heats of mixing of hydrogen-bonded mixtures is presented. The model incorporates a UNIFAC term to describe the physical interactions and a chemical term to account for the hydrogen bonding contribution. The model is applied to binary and tertiary mixtures of normal, isomeric, substituted, and multihydroxy alcohols with a variety of solvents. Thirteen interaction parameters are determined. For the temperature range 0 to 100°C typical errors of ±10% are obtained.

The Japanese And American Approach To Productivity, Foster Edward Warner

Theses

The Japanese auto manufacturers are able to deliver sub compact car to the United States considerably cheaper than the American auto manufacturers are able to build one. The Japanese owe much of their advantage to their management style. Japanese are hired for life and their fate and the companies fate become one. The worker is happy with this arrangement because the company offers training and rotation between jobs. The company benefits from this by having well-rounded, motivated employees.

The Japanese are commited to a long-term improvement in equipment design, inventory control systems, and worker skills. They are constantly striving for …

Dependence Of The Conduction Properties Of Annealed Films Of (Hg0.8,Cd0.2)Te On Sputter Deposition And Annealing Parameters, Chia-Jen Wu

Theses

The dependence on annealing parameters of the electrical properties of ten micron thick, (Hg_0.8,0d0.₂)Te films triode-sputtered onto silicon substrates with (111) surface orientation, was studied. The films held positioned in a quartz tube were annealed for 48-54 hours in zone furnace. The film temperature was chosen to be between 230 and 350°C and the Hg pressure was varied between 36 to 620 mmHg. The annealed films were characterized on the basis of free carrier concentrations and carrier mobilities measured by the Hall-effect at temperatures between 94 and 300 degree Kelvin and with magnetic fields between 0.165 …

Peer Pressure Effect On Group Incentives, John Joseph Witkowski

Theses

When a group-incentive system, all participating workers receive the same bonus. Each pay-group establishes a pace which affects under-achievers and over-achievers.

A null hypothesis, that peer pressure has no effect on group incentives and the distribution of workers' efficiencies will fit a normal distribution, was formulated. The chi-square test was used to test the null hypothesis.

The first part of the study examined the effect of group incentives on experienced workers. The chi-square test indicated a highly significient difference between the actual efficiency distribution and the expected normal distribution; therefore, the null hypothesis was rejected. The measure of kurtosis indicated …

Performance Of A Computer-Automated Triaxial Testing System On Mlk Anderten Clay, Yuan Hsun Wu

Theses

The purpose of this thesis is to develop a computer-automated triaxial testing system. The validity of the system and the applicability of the programs have been evaluated and it was found that the new system can demonstrate the performance in a competent manner. It provides significant advantages over the conventional apparatus. There also exist some sources of error in this system. However, the system can be maintained on a qualified level by periodically calibrating to simulate the actual testing condition.

The behavior of undrained shear strength of the highly overconsolidated Anderten Clay, was examined using the new system. Both remolded …

A Study Of Personal Conflict And Stress Among Engineering Personnel As Influenced By Corporate Policy, Stated And Unstated, Richard Brian Gordon

Theses

The following concepts are being challenged: That organizations are efficient, well-managed, and intelligent: that if one is to believe in any sort of authority, one must first accept the notion that it truly knows best and that it is not only competent, but well-intentioned; that organizations exist for the benefit of their employees and customers; that organizations reward dedication, competence, and performance: that if the organization is to grow it needs loyal sacrificing people; that organizations are dynamic and receptive to change; that if the employee is discouraged, do not worry, for tomorrow will be better; that to be useful …

Shear Behavior Of Fibrous Reinforced Concrete Short Columns, Feraidoon K. Kashani

Theses

The objective of this investigation was to examine the shear behavior of axially loaded fibrous reinforced concrete short columns under double curvature bending. Eleven columns with modeled dimensions of 6 in. by 41/2 in. with only different fiber volume fraction V_f and shear span ratios were tested under double curvature bending.

The material properties of fibrous concrete is briefly discussed on how the addition of fibers benefits the concrete mix. The results of the compressive and tensile behavior of fibrous concrete is presented. The behavior of bending on reinforced fibrous concrete columns is also briefly discussed.

Previous investigation results, …

An Analysis For The Blade Coating Of Ctbn Modified Epoxy Adhesive, Jeng-Li Liang

Theses

A resin metering criterion has been developed for processing the prepregs of CTBN-EPOXY resin in which the resin content can be controlled within close tolerances. This criterion was obtained by numerically simulating the flow of CTBN-EPDXY resin in the blade-type metering device at room temperature. The Newtonion case of CTBN-EPOXY resin was selected for the study to avoid dealing with more complicated flow equations. A methodology of using the penalty function/finite element formulation was developed to solve the steady state Navior-Stokes equation.

The rheological data show that the CTBN-EPOXY resin is a non-Newtonion fluid at low shear rate. On the …

An Application Of Personal Microcomputer To Solve Mid-Sized Goal Programming Problems, Chanhon Joe Lu

Theses

This thesis develops a microcomputer software to solve mid-sized goal programming problems utilizing the revised simplex method.

Goal programming is an extension of linear programming, but is more powerful and flexible than linear programming because of its capability in handling problems with multiple conflicting objectives, instead of dealing with "one dimensional" objective - profit maximization or cost minimization. Accordingly, goal programming is very useful to the complex organizational environments.

With the help of rapid and accurate computation of digital computers, solving a complex program is not a difficult task at all. However, some medium-sized companies cannot afford a mainframe -computer, …

A Parameter Identification System For The Human Visual Evoked Response, Robert Kalle Michaels

Theses

The Human Visual Evoked Response (VER) provides a useful tool for analyzing an individual's visual system. However, mere inspection of the signal may not always be the best way to make a diagnosis of the patient. To aid in this diagnosis a parameter identification system has been developed which fits the response to an analog model. The development of the model was based on the results of a survey of previous work in the field. Data were acquired from a data acquisition/processing system developed at the New Jersey University of Medicine and Dentistry and the Eye Institute of New Jersey. …

Organizing To Manage Future Information Technologies, John Patrick Paczkowski

Theses

The area of information technology has undergone dramatic changes over the past ten years, and the rate of change is expected to continue to accelerate through the 1980's and beyond. The newly developing information systems are providing organizations with numerous options for enhancing the quality of managerial decision making, speeding communications and improving the efficiency and effectiveness of administrative/office processes. Unfortnately, many organizations are discovering that they are unable to effectively assimilate and utilize the technology effectively. Chief executives are finding that the traditional structures for managing Data Processing, Telecommunications, and office systems are often fragmented, lack the technical expertise …