Digital Commons Network^™

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. …

The Effect Of Platelet Activating Factor On Leukocyte Adhesion To The Post Capillary Walls And Developing Dose Response Relationships, Michael Francis Fitzpatrick

Theses

Blood circulation at the microcirculatory level plays an important role in the inflammatory process. Adhesion and emigration of white blood cells are among the major microcirculatory responses to inflammation. It has been recently suggested that platelet activating factor (PAF) may be a significant mediator in the local inflammatory response. This research was undertaken to characterize and quantitate the effects of PAF on the adhesion of white cells to the wall of postcapillary venules of 7-80um diameter.

The hamster cheek pouch microcirculation was used as a model for microcirculatory dynamics and was prepared for both bright field and fluorescent intravital microscopy. …

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 …

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 …

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 …

The Sunlight Effect On Trace Pollutants In Wastewater, Alan R. Sheu

Theses

In order to study the sunlight effect on the degradation rate of trace pollutants, ortho-cresol was selected to serve as a model compound in our studies. Solution of ortho-cresol alone, methylene blue alone, and the mixture of ortho-cresol and methylene blue were exposed to sunlight for more than four hours and aliquots analyzed with a spectrophotometer in order to follow the changes in absorption. Rate data were obtained for these three cases as a function of pH.

The results indicate that methylene blue does catalyze the degradation of ortho-cresol in the presence of sunlight with lower pH's affording higher reaction …

New Jersey Institute Of Technology, Undergraduate Catalog, 1987-1989, New Jersey Institute Of Technology

Course Catalogs

No abstract provided.

The Design And Fabrication Of Dielectric Waveguides For Use With High Power Carbon Dioxide Lasers At 10.6 Microns, Jong Min Kim

Theses

The feasibility of constructing a feasible transission system to propagate 10.6 microns energy from a CO₂ laser is explored. The system is to be used in a clinical surgical setting to deliver as much as 100 watts of CW power from a surgical CO₂. laser to a surgical target.

The optimal transmission system is a slender flexible cylindrical structure, 1 mm in diameter and 1.5 m long. The structure should be sufficiently flexible to be bent into a 5 to 10 cm radius without a significant increase in the attenuation constant. For clinical applications the system must …

Evaluation Of Numerical Inversion Of Laplace Transformed Solutions, Yu-Chwin Lin

Theses

Here, some linear physical systems are analyzed by using the standard Numerical Laplace Transformation and Inversion method, including undamped and damped systems:

1. Undamped system: A bar clamped at one end and at one end free.

2. Damped system: Viscously damped linear discrete system.

The advantage of the Numerical Laplace Transformation method is that it reduces the inversion of the Laplace transformed solution to numerical integration; it makes the problem much easier to solve. In the present work, we also studied a new Numerical Laplace Transformation Inversion method by Wilcox (App.0 and Ref.l). The merit of this new method is …

Digital Signal Processing Implementing The C Language With Graphics Spectrum Analysis Display, Anuraksa Mahanirananda

Theses

Digital Signal Processing discussed in this thesis is concerned with the transformation of signals or complex wave forms From time domain to frequency domain and vise-versa, implemented on microcomputer systems. The primary principles are: speed of transformation, ease of usage as an application program, capabilities of graphics displaying transformed data (such as power spectrum analysis), storing these data onto record files, and capability of using these data Files and programs with other application programs.

We begin by discussing briefly, the concepts of Fourier theory, Discrete and Fast Fourier Transform, algorithms of Fast Fourier Transform and bit-reversal. Then we implement these …

Automated Manufacturing Technology As A Factor In Production Planning And Control, Henry Steven Nicholas

Theses

The field of automated manufacturing technology is examined. The physical hardware is described, including transfer systems, feeder systems, placing devices, automated work stations, sensors, and actuators. The interrelation of the hardware elements is described and various applications are identified. The role of the control system and its interaction with the hardware is examined. The data communications network required for the control system is considered. Various types of computers, computer network structures, and process control strategies are examined.

The use of automated manufacturing technology requires a new approach to production planning and control. The traditional approach is described and several problem …

Alternatives To Lay Off, Davidson Nwaneri Okere

Theses

In the recent years, there have been some changes in the American corporate life. These changes have been occasioned by some external factors which adversely affect the profitability of the companies. In order to address this problem, many corporations have resorted to cutbacks which more often than not, affect a great bulk of the human resources.

The purpose of this study therefore, is to explore the strategies which companies could use, rather than lay off, during business downturns; and still remain competitive and profitable.

Chapter one of this study focuses on what companies should do to help the affected workers …

The Feasibility And Economics Of Resource Recovery Using Municipal Solid Waste, Joachim Aloysius Pinto

Theses

This thesis gives an overview of the feasibility and economics of a resource recovery project. The feasibility study of a resource recovery project is done by analyzing its markets, economics, and environmental aspects. The use of market development, accurate capital and operating cost estimation procedures and environmental impact analysis help in predicting fairly accurately the feasibility of a resource recovery facility and also gives a good estimate of the economics of the project.

The thesis also discusses the different system design that are or were used in waste-to-energy conservation. It is quite evident from the discussion that the only two …

Microcomputer-Based Automated Feeding And Monitoring System For Eating Behavior Studies On Rats, Tseng-Huang Shih

Theses

An instrumentation system has been designed to monitor feeding behavioral experiments on rats. This instrumentation system is capable of performing these experiments in an automated manner without any human intervention. It is capable of monitoring these experiments concurrently in six cages. It exhibits several features that make it more versatile than previous feeding & monitoring systems. It is also capable of storing the data generated on to a floppy disk and later printing out the data for analysis.

Another feature that makes it more versatile is the flexibility of the system. Construction of a parameter file before doing the experiment …

Analysis And Evaluation Of The "Pay For Savings" Concept : The Residential Energy Conservation Action Program (Recap), Glenn Owen Steiger

Theses

Recently, electric utilities have developed and implemented many methods to induce their customers to reduce consumption of electricity. One of the most unique concepts was developed by the General Public Utilities Corporation. Simply, it is the "Pay for Savings" concept which pays energy conservation contractors for actual (measured) energy saved, and not for the retrofit measures used to accomplish the savings. GPU has developed a program, Residential Energy Conservation Action Program, as a vehicle for this concept.

This thesis has attempted to describe the methodology used in implementing RECAP. More importantly, it has analyzed actual results of the program and …

Performance Of Second Order Delta Modulation System, Reza Aghazadeh Alavi

Theses

The performance of an ordinary delta modulation (DM) system under three types of input signals was investigated. These signals were band limited Gaussian noise, 800 Hz sine wave, and speech signal. The affects of 2nd DM added to the ordinary DM in improving the performance of the system were researched. This is called a Second Order Delta Modulation System. The obtained data showed an increase of about 3dB in the overall Signal to Noise Ratio (SNR) of the system, in the worse case.

Input to the 2nd DM is the band limited error of the first DM. A linear phase …

Stress And Today's Working Woman, Tommie Mae Byers

Theses

The eighth wonder of the world is fast becoming the great American job machine The employment rate has declined in most industrial nations while 20 million jobs have been created in the U. S. during the past 10 years. The principal reason for this rise in job placements is the large influx of women into the labor force.

Two-thirds of the jobs created over the past decade have been seized by women. The post-industrial environment which has produced an extensive number of service-type businesses has substantially opened the job market for women. Financial experts will contend that an expanding labor …

Mrp Ii As A Tool For Inventory Management : Application, Implementation, And Its Alternatives, Yi-Hsin Chiu

Theses

MRP II has been used universally as a tool for production planning in various manufacturing systems. Its foundation of success is based on an accurate inventory management. Due to the rational pricing of computer hardware and software, the selection of an appropriate off-the-shelf MRP II package has become an important topic. Moreover, implementation of a commercial MRP II package significantly affects its capability of handling an assigned task. The scope of this thesis is to discuss how to successfully implement MRP II through a design and development of a proper inventory data base in order to expand its application. The …

Reflections On Solid Modeling In Cad/Cam System, Yuh-Hwa Chyr

Theses

In this thesis, we will first study the mathematical fundamental for geometric modeling. It includes modeling space, representation scheme, and various characteristics for solid modeling. Then we discuss how a solid modeling system is integrated into an overall CAD/CAm system. What functions it performs, and what fuctions must be performed with other parts of the CAD/CAM systems. And how data can be transfered between solid modeling system and other CAD/CAM system.

Solid modeling has created a new era in CAD/CAM. A solid model is an unambiguous, three-dimensional, geometric representation of a design. The more design information a model can represent, …

Mathematical Modelling Of The Simultaneous Diffusion Of Egta And Caegta And Ca2+ In A Two-Compartment System Representing Skinned Smooth Muscle, Roderick Jon Hausser

Theses

Smooth muscle strips "chemically skinned" with Triton X-100 represent a two-compartment system consisting of the extracellular space (ECS) and the cytosolic space (CS) bounded by the permeabilized plasma membrane. Free [Ca²⁺] in such systems must be controlled with sufficiently high concentrations of Ca-buffers (EGTA). The presence of Ca-buffers, however, will oppose and delay any changes in [Ca²⁺] in both compartments. We have developed a model describing the simultaneous diffusion of Ca 2+ , EGTA and CaEGTA between bath and ECS, and ECS and CS and the chemical reaction between ligand and metal species in each compartment. …

Steady-State Operation Of Bench-Scale Activated Sludge Process Using Phenol And 2-Chlorophenol As Substrates, Jeffrey Richard Caputi

Theses

Experiments were conducted to determine whether a continuous process similar to the common activated sludge process could be operated at a relative steady state with phenol and 2-chlorophenol as the sole carbon sources. After a number of unsuccessful trials, process conditions were developed which allowed for operation at a relative steady state with respect to the concentration of microorganisms in the reactor and the concentration of phenol and 2-chlorophenol in the effluent.

Phenol and 2-chlorophenol were removed at better than 99 percent efficiency on a continuous basis. The mixed liquor grown under the conditions of the experiment was highly filamentous …

The Effect Of Inorganic Salts On Adsorption Of Organics By Fly Ash, Pai-Yuan Horng

Theses

Optimum amounts of inorganic salts ( monovalent, divalent, and trivalent chlorides ) added to various bituminous coal fly ashes in batch adsorption treatment experiments indicates the possibility of improving adsorption capacity.

Experiments were conducted on aqueous solutions of three priority pollutants : phenol, toluene, benzene. Both high fusion and low fusion fly ashes were used as sorbent materials. Removal of organic pollutants was measured using a total organic carbon analyzer.

Isotherm tests positively indicate that the addition of inorganic salts to fly ash significantly increases adsorption capacity. The study shows that removal of organic pollutants by fly ash depends on …

The Kinetics And Mechanism Studies Of Cathodic Electro-Initiated Crosslinking Polymerization Of Unsaturated Polyester Prepolymer, Joseph Yuan-Ji Sheng

Theses

The cathodic electro-initiated polymerization reaction of the unsaturated polyester prepolymer has been found to have the characteristics of the first order ionic initiation polymerization mechanism. The rate of polymer formation is directly proportional to the current intensity and voltage supplied, but inversely proportional to the reaction temperature. The rate of initiation can be expressed as a function of the initial concentration of the prepolymer, residence time and reaction temperature. The rate expression of the initiation step has been derived based upon the experimental data collected as follows:

ln W = k0 exp[-Ea/RT] Ca0 ln t + ln b

where k0 …

High Temperature Reactions Of Chloroform With Methane, Thomas Siozopoulos

Theses

The reactions of Chloroform with Methane were studied at atmospheric pressure in the temperature range of 550-800 deg C, and using three different reactor diameters.

The reaction was found to follow pseudo-first order kinetics in the presence of excess Methane and Argon, and the kinetic parameters were determined for each of the reactor sizes.

The resulting global Arrhenius expressions are:

For 0.4 cm ID Kexp = 2.03 * 10⁸ exp (-34000/RT)

For 1.05 cm ID Kexp = 9.86 * 10⁸ exp (-37950/RT)

For 1.6 cm ID Kexp = 4.17 * 10⁸ exp (-36760/RT)

An increase in the …

Modeling And Simulation Studies On Nmos Vlsi, Chang-Joo Kim

Theses

This thesis has two parts. The first part deals with the theoretical analysis and experimental verification of the variation of channel resistance and threshold voltage as a function of drain and source voltages in NMOS transistor with the substrate taken as reference. And the second part deals with simulation and optimization of the NMOS sense amplifier circuits.

Firstly, the NMOS transistor with the substrate taken as reference node is analysed and a set of formulas is derived for the variation of channel resistance as a function of the terminal voltages. Experimental results (using SCL 4007AE from Signetics) show good agreement …

The Use Of Pure Cultures As A Means Of Understanding The Performance Of A Mixed Culture In The Biodegradation Of Phenol, Chirasakdi Varuntanya

Dissertations

In an effort to gain a more fundamental understanding of the performance of mixed microbial cultures in the biodegradation of toxic organic chemicals, studies have been conducted using three phenol degrading species isolated from a municipal treatment plant. The rate of phenol degradation was investigated for each of the three pure phenol degrading species, and various combinations of the three species. A simple competitive model was used to predict the behavior of the mixed cultures by using the pure culture Monod rate constants. The model fit the growth data for total biomass very well, although (as with the pure culture …

High Temperature Reactions Of 1,2-Dichloroethane With Water Vapor In A Tubular Reactor, Charles E. Anderson

Theses

This study examines the reaction of l,2-dichloroethane with water vapor. The linear-flow method is utilized, assuming plug flow without axial diffusion. Normal operation is at atmospheric pressure and the reactor is a quartz tube in a thermal region 45 cm in length. Two reactor diameters of 0.4 cm and l.05 cm are used. Water and l,2-dichloroethane enter the system in liquid phase via syringe pumps. After vaporizing in heated tubing, they are combined with argon, the reactor carrier gas. The molar ratio of water to l,2-dichloroethane is 55:l and varied residence times are achieved by changing the argon flowrate. Reactor …

Trends In Metal (Pb, Zn, Ni, As And Se) Concentrations In The New Jersey Air Environment, Geoffrey Ike Ejiofor

Theses

The trend and atmospheric concentrations of five trace elements (Pb, Zn, Ni, As and Se) were studied at Newark (urban site) and Ringwood (rural site), New Jersey, during January - September 1985, whilst the Hackensack Meadowlands, New Jersey were monitored during October 1985-March 1986. The analytical procedure involved collection of the airborne particulates on a glass fiber filter using a non-dichotomous high volume sampler. The samples were digested and analyzed using the atomic absorption spectrophotometer. It was ascertained that Newark and Meadowlands exhibited higher average concentrations of Zinc and Lead than Ringwood. It was concluded all the metals originated mostly …

Experimental Study Of Rectangular Reinforced Concrete Members Under Combined Biaxial Bending And Tension, Naresh B. Patel

Theses

In practice it is a very common case to have a column subjected to combined effects of axial tension and biaxial bending moments and very few efforts are done to get good design approach for such special members.

So for this purpose, experiments were carried out on rectangular shapecolumns. Rectangular shaped columns were casted in homogeneous with brackets - one on each end and at connections haunches were provided to avoid the possible end failure. The overall shape of this configuration was "H" shape. Two hydraulic jacks were used; one on either side of the columns and thus column section …

Biorhythms And Industrial Injuries, James Vincent Detitta

Theses

The purpose of this study is to determine whether or not a relationship exists between the time of an industrial injury and a specific position on the biorhythm scale known as a critical day.

Ninety-six employees who worked at the E. I. du Pont de Nemours Plant in Parlin, New Jersey served as a test group during 1980. In order to determine if a relationship did exist, the subjects' biorhythmic cycles for 1980 were charted and then their injury performance was monitored during that year to see if the injury date corresponded with a critical day. An additional test was …