Digital Commons Network^™

Loss Of Female Hormones After Menopause: Effects And Implications, Mary Lou Heilman

Theses

None provided.

Modeling Of Elastic-Viscoplastic Bahavior And Its Finite Element Implementation, Ted Diehl

Theses

A state variable approach is developed to simulate the isothermal quasi-static mechanical behavior of elastic- viscoplastic materials subject to small deformations. Modeling of monotonic/cyclic loading, strain-rate effect, work hardening, creep, and stress relaxation are investigated. Development of the constitutive equations is based upon Hooke's law, the separation of the total strain into elastic and plastic quantities, and the separation of work hardening into isotropic and kinematic quantities. The formulation consists of three coupled differential equations; a power law measuring viscoplastic strain-rate and two first order equations for isotropic and kinematic hardening. Derivation of, behavior of, and use of the model …

A Quantitative Comparison Of Ion–Deposition Printing For Micr Quality On Bank Checks, In Relation To Other Printing Systems, Marachai Kongboonma

Theses

None provided.

Spine Preparation: Factors Affecting Optimum Linkage Of Paper And Adhesive In Adhesive Bookbinding, Richard Adams

Theses

Adhesive bookbinding, a method of holding trimmed pages together in a book using hotmelt glue, offers rapid binding and curing time, but has the disadvantage of poor glue penetration into the paper edges. A weak binding will result unless good linkage can be made between paper and glue, which is the objective of spine-roughening treatments. Eight spine-roughening treatments from three manufacturers were compared on an uncoated and a coated paper stock, against a control treatment of trimmed paper. Treatments were studied by light- and scanning electron microscopic examination of paper edges and by measurement of the mean page-pull values based …

Building And Testing A Gravure Paper Conformity Tester, Cort Holland

Theses

The gravure industry does not have an inexpensive tester which can accurately predict the behavior of paper on a gravure press. The most acceptable tester currently available is the Parker Print Surf. A "conformity" tester, based on compression of paper into a thin channel, was designed and built. It was compared to the Parker Print Surf and found to be poorer in predicting ability except in the special case of groundwood papers. More study is necessary. Several unusual techniques were used. The first involved running sheets of paper through a web press. This technique had a slight "leading" sample distortion …

A Study Of Gravure Cell Structure Generated By The Hell Chromagraph 399 Er Laser Scanner Onto A Photopolymer Plastic Gravure Printing Surface, Wichian Ekataksin

Theses

It is known that the gravure process provides the best quality printed materials and the fastest production speed. The gravure process, as a matter of fact, is the only process which can utilize fully digital imaging technology. For instance, the Helio-Klischograph Model K201 and K202 incorporated with the Hell Chromacom System can engrave gravure cylinders directly without using any halftone films or bromides. Hell Co., Ltd., moreover, has been developing the electron beam engraving technique which employs digital imaging technology to engrave gravure cylinders. On the other hand, Crosfield Electronics Co., Ltd. introduced the Lasergravure process which also utilizes digital …

A Comparison Of Staggered Position One Angle Process Color Printing With Four Angle And One Angle Process Color Printing, Blair Richards Jr

Theses

The Staggered Position One Angle method of preparing color separations does not adjust the dot angle for each color. The dot pattern is staggered horizontally or vertically by half a row of dots for each separation maintaining the same angle. The investigation compared the Staggered Position method to the four angle method and to the dot-on-dot method. Newsprint was the substrate, and 65, 85, and 100 lines per inch were the rulings. Experienced judges viewed the representative prints and scored each for sharpness, color variability, and overall acceptance. They were also asked to indicate the evidence of rosette and moire …

A Study Of The Effect Of Surround And Ambient Lighting Conditions On Crt Screen Colors, Diane Ouellette

Theses

The use of CRT monitors as a soft copy proof in color electronic pre-press systems (CEPS) has become common. This has raised some question as to the appropriate viewing conditions for such terminals. This writing discusses the effects of ambient illumination as well as screen surround conditions on optical, psychophysical, and physical characteristics of CRT colors in a complex color field. A review of related literature, specifically those studies of chromatic adaptation, and effects of surround conditions on brightness, hue, and saturation is included. These studies are compared to the experimental data and both an ambient light model and surround …

An Investigation Using Cc Filtration To Predict Dot Size Changes In Order To Achieve Desirable Color Balance, Karen Kelly

Theses

The purpose of this study was to investigate a method of color evaluation which can be used by the customer when reviewing color proofs. The method being proposed here incorporates the use of color compensating (CC) filters when evaluating proofs where an overall color correction is necessary. The color balance among pictures that are to appear in close proximity to each other is a major consideration in publication printing as well as certain aspects of commercial printing. There is a need for an effective means of obtaining good reproductions of individual subjects while maintaining a visual consistency between them. In …

Evaluation Of The Instrumentation Laboratory Microcentrifugal Analyzer Iii, Karin B. Mccall

Theses

The Instrumentation Laboratory's MicroCentrifugal Analyzer (MCA) was evaluated for precision, linearity and accuracy for albumin, alanine transaminase (ALT), aspartate transaminase (AST) , alkaline phosphatase, creatine kinase (CK), cerebrospinal fluid (CSF) total protein, cholesterol, glucose, gamma-glutamyl transpeptidase (GGT), lactic dehydrogenase (LDH) , phosphorous, total protein, and triglyceride. Within-run, within-day, day-to-day, and total precision was comparable to or exceeded manufacturer's claims and was comparable to the precision in existing in-house tests. A comparison of methods for the MicroCentrifugal Analyzer with those used on the Technicon SMA 12/60, the Abbott ABA-100 and the Kodak Ektachem 400 showed very good correlation with minimal random …

A Study On The Relationship Of The Moisture Content Of Paper And The Setoff Rate Of Drying Oil Lithographic Ink And Its Application To Thermographic Printing, Daniel Gibbons

Theses

The focus of this study was to determine the specific moisture content of several different papers that were exposed to four different relative humidity environments at approximately 30 degrees centigrade. This was done in order to see if the amount of water present in a sheet of paper affects the drying rate of drying oil inks. This in turn was done so that we would be able to determine if the rate at which this ink dries and its corresponding increase in viscosity affected the tack or "stickiness" which is vital to thermographic printing applications. The addition of moisture to …

Learning System, Bhavesh T. Adani

Theses

Many rule-based learning systems have been implemented which generate and update rules/facts from illustrative examples provided by the user. But very few of them have succeeded in achieving the efficiency and accuracy of an ideal system.

The approach made here is to continuously update the hierarchical structure of rules/facts of a knowledge-base so that efficient and accurate solutions to any query can be achieved easily and immediately from the many possible solutions to the query. As the rule-based systems deal with a very large knowledge-base, it is sometimes necessary to apply a learning technique that finds optimum solutions efficiently.

The …

An Intelligent Computerized Pulse-Duplicator For The In-Vitro Evaluation Of Prosthetic Heart Valves, John F. Andrews

Theses

A computerized data acquisition system is presented for the in-vitro determination of the hydrodynamic performance of prosthetic heart valves. High speed data acquisition and ensemble averaging techniques are employed to minimize error and provide a standard for data collection and analysis across a wide range of simulated physiologic conditions. Processing algorithms automatically divide the cardiac cycle into phases based on landmarks in the pressure and flow waveforms, with minimal variability and without operator intervention. The contributions of valve resistance, regurgitation, ejection, leakage, and power loss to hydrodynamic performance are isolated for investigation. Phasic power loss analysis is reviewed as a …

Waveform Analysis And Application To A Model Of The Egg Waveform, Eu-Rune Chang

Theses

The purpose of thesis is to describe and investigate a model of electroglottogram waveform. At the beginning, we generate a set of sine waveform models to analyze by using Fourier transform theory. Then, according to the electroglottogram is conjectured to be related to the area contact between the vocal folds, we assume a simple model of vocal fold vibratory motion is used to estimate the vocal fold contact area as function of time. Therefore, we modified and developed the mathematic EGG waveform model by using personal computer program computation to become a set of realistic EGG waveform models, which are …

Optimal Cache Size In Microprocessor-Based Multiprogramming System, Charalambos Stephanou Christou

Theses

The Motorola 68020 microprocessor, its paged memory management unit MC68851 and cache memories are rigorously studied. The simulation model of this uniprocessor, multiprogramming system was constructed and tested to determine the optimal physical cache size.

The parameters varied in the model are the cache size, the degree of multitasking, the loop count and size, the cache algorithm and the time slice given to every task. A number of simulations have been conducted and the results are examined.

Development Of A Rock Model Testing Capability At The New Jersey Institute Of Technology And Testing Of Plane Stress Models Possessing A Central Circular Opening With A Nearby Horizontal Discontinuity, David R. Good

Theses

This thesis had three main objectives. They were to develop a rock model testing capability at N.J.I.T. by (1) developing and building a load testing frame for rock models, including all necessary appurtenances and load measuring devices, (2) developing a rock modelling material and quantifying its properties, and (3) applying the capabilities described in items 1 and 2.

A high capacity load test frame was constructed from structural steel members. Heavy screw rams were utilized to apply load and specially constructed proving rings were employed to accurately measure load. Additionally, load platens and other support equipment were constructed.

The model …

Computerized Analysis Of Gastrointestinal Spike Burst Activity, Karthik Krishnan

Theses

This thesis describes a computer algorithm for locating gastrointestinal spike bursts. The algorithm also finds the the number of spikes within each spike burst, the average duration, and average amplitude of each spike burst. The algorithm was applied to the automation of the analysis of the Migrating Colonic Complex.

The algorithm detects the spike burst using threshold, time interval and frequency criteria. The computer program is implemented on a PDP 11/73 digital computer. The operation of the algorithm was tested on animal models to detect the spike bursts, before and after the inducement of certain drugs to alter the colonic …

Finite Element Method In Turbo Pascal, Tingwang Kuo

Theses

A finite element program FEM2D in FORTRAN language by J.N. Reddy has been translated into TURBO PASCAL and several features such as interactive input, mesh generation for a rectangular plate with a circular hole at the center of the plate and graphical display of the meshes and node numbers have been implemented. Four examples including potential flow and plane stress problems have been tested successfully. It is concluded that the PASCAL language on a microcomputer can he used to write a finite element program and is easier to give graphical display than FORTRAN language. The maximal number of nodes that …

Kalman Filtering Applied To The Analysis Of Brainstem Auditory Evoked Potentials, Chong An Qian

Theses

The objective of this thesis is to detect the Brainstem Auditory Evoked Response (BAER) using lower numbers of averages than at present, by using an optimal smoothing method which is based on the Kalman Filter.

By using this method, the wave V latency of the BAER which is useful in testing for hearing loss can be detected with as low as 500 averages, while the traditional signal averaging method requires at least 2000 averages. Thus the time required for a hearing loss test can be reduced from one hour to approximately 20 minutes.

Also several other methods for detecting BAER …

High-Energy, Curable Polycyclopentadiene Binder For Solid Rocket Propellants, Jian Guo Ning

Theses

Diels Alder polymerization of cyclopentadiene ( CPD ) has been carried out at 170°C under inert atmosphere. The resulted polymer has a low bulk viscosity, 7.4 cps, and a number average molecular weight M_n up to 3000. This liquid Prepolymer is curable with maleic anhydride. With ammonium perchlorate, aluminum, and maleic anhydride, a high energy solid propellant has been formulated with this polymer. Via bomb calorimeter, Instron, and density measurement, it was found that this propellant has a better heat of combustion, tensile strength, and solid loading than that of the commercial rocket propellant based on hydroxyl terminated polybutadiene.

Computer Analysis Of The Electrocardiogram Using Hardware Digital Signal Processing, Mohammad Ashfaque Shaikh

Theses

A system based on the microcomputer IBM PC-AT has been realized to acquire and filter the clinical electrocardiogram (ECG) data in real time. The system program further detects and analyzes the ECG signals for possible cardiac arrhythmias.

This research is based on work done by previous researchers and achieves significant goals towards achieving on-line arrhythmia detection using a microcomputer. The system uses the hardware and software package ASPI 320/PC from Atlanta Signal Processors Inc. This hardware configuration uses a special purpose instrumentation microprocessor ( TMS32010 from Texas Instruments) to coprocess the ECG signals. Coprocessing the signals with the ASPI 320/PC …

Development Of A Knowledge-Based System For Human Error Analysis, Bang-Chiang Sung

Theses

Human Factors is one of several essential issues in a discussion of system productivity. Its consideration must be included in the design, development, operation, and maintenance of any human-machine system. In order to maximize the system productivity, humans must perform with their maximum possible efficiency. To achieve this, all human-related activities must be evaluated to determine their possible causes of errors and the consequences. Then, if unable to completely remove, the causes of human errors must be minimized.

This thesis integrates a knowledge of expert system into an analysis of human errors. Its objective is to develop a knowledge-based system …

The Architecture Of Automobile And Building Design : Learning From 100 Years Of Parallel Processes, Vojislav Ristic

Theses

The industrial revolution has had a critical impact on society in general and architecture in particular. How we design, build and use buildings is different due to industrial changes in materials, processes and techniques. A key manifestation of the industrial revolution has been the automobile. Since the automobile is a more direct result of application of technique, it is helpful to examine its design to better understand the less direct influences of technique in architecture. This is especially important at a time when the role of technology in architecture is becoming both more significant and more difficult to define and …

Thermal Decomposition Of Dichloromethane/1,1,1-Trichloroethane Mixture In An Atmosphere Of Hydrogen, Yang Soo Won

Theses

The thermal decomposition of a dichloromethane/1 , 1 , 1-trichloroethane mixture diluted in hydrogen was conducted in tubular flow reactors at 1 atmosphere total pressure. The thermal degradation of each species was analyzed systematically over temperature ranges from 475 - 810 °C, residence times of 0.05 - 2.0 seconds and three different surface to volume ratio flow reactors.

It was found that the conversions of each species in the mixture were a function of both temperature and residence time. Complete decay occurs at about 810 °C for dichloromethane and around 570 °C for 1,1,1-trichloroethane at 1 second residence time. The …

Analysis Of C2 And C3 Hydrocarbons In Ambient Air. Section I ; Identification And Quantification Of Volatile Organics Emitted From A Landfill. Section Ii, Tsong-Sheng Chang

Theses

SECTION I

A method was developed to analyze Acetylene, Ethylene, Ethane, Propylene and Propane levels in the ambient air. Chlorinated compounds within the operation retention time, Methyl chloride, Methylene chloride and Vinyl chloride, were monitored also.

Four sampling sites are located at Carteret, Elizabeth, Newark and Montville in New Jersey. Samples were taken during the summer of 1988. Two sample duration periods utilizing 12 and 6 liter stainless steel canisters were set up to take 24 hour air samples and instantaneous air samples (5 minutes collection period).

The average levels of Acetylene, Ethylene, Ethane, Propylene and Propane at the four …

A Study On The Poly(Ethylene Terephthalate)/Flouropolymer Blends, Chyan-Nin Chiu

Theses

The rate of crystallization of Polyethylene terephthalate) (PET) can be improved by blending it with polyethylene co chlorotrifluoroethylene) (ECTFE; tradename Halar) so that it can be suitable for injection molding. The special advantage of this method is that molecular weight of the blend will not decrease so much as by adding nucleating agents. That is to say, the mechanical strength of the blend will not decrease very much compared with that of virgin PET.

Analysis And Design Of A Surface Microengineered Silicon Humidity Sensor, Uei-Yanq Chen

Theses

This thesis details the design for a solid-state humidity sensor which utilizes state-of-the-art silicon technology. The sensor design utilizes a microengineered surface which includes a polysilicon airbridge structure as heater and sensor element in an integrated device.The operation of this device depends upon the small variation of thermal convection coefficient which effects the temperature of the heated element within the device. The temperature of the polysilicon bridge is monitored by means of a resistance bridge. In one design(sensor I) a single polysilicon airbridge is used for both the heater and resistance sensing element. Also a second inferior design (sensor II) …

The Strategic Planning Dilemma In American Manufacturing, James Andrew Kiray

Theses

The decline of American manufacturing competitiveness is a highly publicized and controversial issue. This publicity has led to a panacea of solutions being offered to this problem. As a result, many conflicting viewpoints have emerged, which have aided in making any solution to this problem extremely difficult. Top executives have been inundated with recommendations for change, causing confusion at all levels of management.

In an effort to define the underlying problems existing within the American strategic planning process, this author has selected current literature which supports his own views, and has expended upon these views.

Once these underlying problems are …

Arithmetic Pipline Scheduler, Chun-Ta Pan

Theses

A schedule is used to determine which stages of an arithmetic pipeline are active at any particular time. It can determine when another process can be introduced into the pipeline so no more than one set of data will use the same stage at the same time. The Arithmetic Pipeline Scheduler (APS) is a software tool used to analyze schedules for different operations and determine greedy schemes for introducing data into the pipeline. The user can use APS to process up to ten arithmetic equations. The user also can use APS to define different configurations of stages. Besides, APS can …

Classc/Elaine: A Multiple Inheritance Object Oriented C Language, Paul Kirkaas

Theses

Object oriented programming is a way of abstracting information and operations to make programming more efficient and reliable. C is a non object oriented programming language that has become a de facto language standard in academic and industrial applications because of its power and flexibility. ClassC is an attempt to add object orientation on the existing framework that C provides. Specifically, ClassC adds the new data type object, and the new aggregate declaration, class. ClassC differs from other C-based object oriented languages such as C++ Objective-C in three points: 1) ClassC provides true multiple inheritance, which is very commonly discussed …