Digital Commons Network^™

The Effects Of Benzotriazole In A Photographic Developer On The Covering Power Of An Emulsion, Kenneth Carlson

Theses

Benzotriazole in a photographic developer has been determined to increase covering power. This is accompanied by a decrease in photographic speed proportional to the increase in covering power. Benzotriazole decreases the rate of development when measured by mass of silver developed, but may increase the rate of development when measured by density at D-max exposures because of the increase in covering power. The effect of benzotriazole on image color has also been determined. Possible explanations for effects are given.

The Problem Of Gelling When Silicates Are Substituted For Gum Arabic In Lithographic Fountain Solutions, David Wang

Theses

The fountain solutions used for lithographic offset printing are solutions combining several chemicals. Each consists of water, some weak acid, gum arabic and alcohol in some fountain solutions, and some additives such as a nitrate, phosphate, bichromate, etc. This paper is a study of using polysilicate material instead of gum arabic in lithographic fountain solutions. Also, to solve the problem of silicate gelation by using the proper ratio of chemicals. The gelling problem of silicate material may be affected by the concentration, pH value, organic solvents and impurities, etc. Any one of the above will make the silicate material gel …

A Stability Test Of Dry Silver Microfilm, Christopher Edwards

Theses

A research project has been completed, in which experiments involving temperature and humidity were performed on 3M experimental microfilm samples. The experiments dealt with humidity levels usual to file storage conditions and elevated temperatures to allow for accelerated aging studies. Arrhenius plots were used to extrapolate the results obtained to normal room temperatures. The data obtained indicated that the film has a life expectancy of 62 years at 30% relative humidity and 53 years at 50% when stored at 24 C.

Pwm Motor Control: Model And Servo Analysis, Rick J. Sandor

Theses

In recent years, the performance requirements of high power servo motor systems utilizing pulse width modulated (PWM) switching amplifiers have steadily increased. These PWM motor amplifiers perform an important function in the d.c. servo system by boosting the low level command signal to the high voltage and current levels required by the motor. Ideally, this power gain is to be constant over all input frequencies but, in reality, gain is frequency dependent which affects system dynamics. The amplifier gain and phase versus frequency relationships an*i amplifier noise and d.c. offsets which may affect system response must be known to the …

Diploma Nursing Instructors And Student Perceptions Of Effective Clinical Instruction, Marilyn E. Huggins

Theses

This descriptive study of effective clinical instruction surveyed students and faculty in six St. Louis area diploma nursing schools. While many studies have been done attempting to define and evaluate effective teaming, it has only been recently that researchers have begun to explore the effectiveness of clinical education. Clinical experience is that hands-on, practical experience one receives while in a professional education program such as nursing, medicine or dentistry. These studies show variation and conflicting results. or the studies found relating to the effectiveness of clinical practice, the majority occurred with students other than diploma nursing students. This researcher-a diploma …

Digital Font Design: Alice, Lynne Garell

Theses

Not Included

An Inquiry Into Engineering Career Choice And Career Satisfaction, Gunars Bachs

Theses

The purpose of this thesis was to ascertain factors that motivate a person to study engineering, and to examine the aspects of engineering career satisfaction. This study was conducted as a survey by means of a mail questionnaire, which was distributed among graduates of New Jersey Institute of Technology. Another sample, comprised of master's degree recipients of NJIT who had received their bachelor's degree from other undergraduate schools, served as a control group.

Motivation factors and positive and negative aspects of the engineering career were established and ranked in order of their importance. A method to measure career satisfaction was …

An Analysis Of Costs In Welding, Shashank Gangadhar

Theses

The investment making decision for welding machinery or the selection of an economic welding process is ccmplex due to the associated indirect expenses. For conventional evaluations certain cost elements can be disregarded since they are affected equally by competing alternatives. When considering welding equipment or calculating welding costs or selecting a welding process, the indirect costs assume a significant proportion and such factors must be carefully examined.

In this paper an attempt has been made to highlight the procedure for economic justification for welding machinery and the procedure for calculating the total weld costs. The calculation of such variables as, …

Analysis Of Deflection Temperature Under Load, Anand M. Jagani

Theses

Deflection Temperature Under Load (DTUL) is an experimental value commonly used by designers to characterize a plastic in a high temperature environment. This value is currently measured by a standard test procedure specified by the ASTM D-648. A theoretical analysis of this test was made and computer programs were developed to calculate the Deflection Temperaure of Plastics Under Load based upon temperature dependent flexural modulus data and temperature dependent thermal properties of the plastics of interest. The results obtained from the theoretical analysis agree closely with the experimental values found in the literature for two resins. An analysis of the …

Computer Graphics In Pressworking Of Sheetmetal, Manisekaran Muthu

Theses

This thesis deals with how computer graphics can be applied to the pressworking of sheetmetal. Blanking, bending and cup drawing are the major pressworking operations. A computer graphics package was developed with the aid of the Tektronix 4051 computer. This package would help the designer of pressworking operations. All the programs were written in BASIC computer programming language.

The programs written for the stock layout display the various stock layouts for circular, rectangular, square, triangular shaped components or any irregular shaped component on the computer screen. Each stock layout displays important parameters such as material utilization percentage, width of stock …

Experimental Quantification Of The Image Quality Loss Due To The Effect Of Screen Ruling, Chantana Tangseree

Theses

The purpose of this research is to measure the amount of image quality loss due to the effect of screening an image with halftone screens. This was done by using screens of different line number and images with differing amounts of image quality. Six black and white continuous tone positive originals were used to scale the image quality. These prints had been produced so as to have equal steps of image quality from the sharpest and ranging to some lower image quality which was at or slightly below a just acceptable level of image quality. Each of these images was …

The World's Highest Inhabited Place: Aucanquilcha, Chile, Jose Araneda

Theses

Not listed.

The Gshell: A Graphical Command Language For Unix Operating System, Andrew Kitchen

Theses

The Gshell, a graphical command interpreter for Unix, and an executing and editing environment far the Gshell system are described. Through the use of a pictorial representation of command scripts the Gshell system provides a more powerful expression of concurrency than is possible with conventional Unix command languages. Its syntax and use is explained and major features of its underlying control and data structures are discussed from the point of view of the designer and the programmer.

Night Fever, Anthony Ward

Theses

None provided.

Wrestling With Angels, Robert Cooper

Theses

Not Included

A Real Estate Appraisal Manual: Step-By-Step Procedure, Kenneth William Voss Ii

Theses

This manual provides a practical, step-by-step guide to the real estate appraisal process, written with clarity and accessibility for students, beginning appraisers, and practitioners seeking a structured reference. Organized around the three traditional approaches to value—cost, market comparison, and income—the text emphasizes not only the theoretical foundations of valuation but also the application of methods through worked examples, sample forms, and procedural outlines.

The manual begins with an introduction to the role of the appraiser, the purpose of appraisals, and the ethical responsibilities tied to valuation work. It then outlines the stages of a complete appraisal report, from defining the …

Development Of A Flight Operations Computer System, Lawrence Joseph O'Keefe Jr.

Theses

The thesis, Development of a Flight Operations Computer System by Lawrence Joseph O’Keefe Jr., explores the creation of a comprehensive flight operations computer system for Ozark Airlines. Written in 1984, the project discusses the challenges and processes involved in developing a system that enhances airline crew scheduling and management. The author was part of a team dedicated to replacing a time-sharing system with an in-house solution, emphasizing flexibility and adaptability to meet the demands of a rapidly evolving airline industry.

The system's primary goal was to address Federal Aviation Regulations, pilot and flight attendant contractual requirements, and the dynamic operational …

A Systems Analysis, Design And Implementation Of The Centralized Inventory Management System For Low Volume Products (Cims/Lv), Sandra A. Harris

Theses

Unavailable.

A Traffic Simulation Model Of Tokyo Metropolitan Expressway, Juichiro Miyaoka

Theses

Not provided.

Small D.C. Bipolar Electromagnetic Design: Optimization And Analysis, John J. Breen

Theses

The design of electromagnets is an iterative process in which the designer arrives at a solution to his design problem through repeated design trials. This procedure can be time consuming, and the resultant configuration may or may not be the best one for the constraints imposed on it. In addition, the designer must have a reasonable knowledge of magnetics to carry out these design steps. This paper presents the basic equations necessary for designing and analyzing a horseshoe-shaped D.C. electromagnet. With this base, two methods are developed to optimize a design for maximum holding force, subject to prespecified constraints. The …

Determination Of The Existence Or Non-Existence Of Low-Intensity Reciprocity Law Failure In Kodak Micro Positive Resist 809, Jutta C. Middel

Theses

This thesis was performed to determine if low intensity reciprocity law -failure (RLF) exists in Kodak Micro Positive Resist B09 (KMPR 809) . At exposure irradiances at or below .44 mw/sq cm, it was observed that solublization of the photopolymer was incomplete, indicating that low-intensity RLF of the photosolubilization does exist. RLF was indicated by the formation of a "scum" layer over the exposed areas of the resist, the thickness of which increased with decreased irradiance. Mechanisms have been identified which may explain the RLF of the photoreaction. Confirmation of the proposed mechanisms could be the subject of another study. …

Tensile Analyses Of Creep In Plastics Using The Finite Element Method, Frank A. Porter

Theses

The deformation, stress relaxation, stress recovery, creep rupture, creep buckling, and creep ratchetting aspects of creep are discussed with the emphasis on deformation of a plastic due to a tensile load. Two problems were run using the ABAQUS Finite Element Program: an axisymmetric steel pressure vessel with elliptical end caps, and a plastic rectangular beam in tension. The pressure vessel model was used to check the ABAQUS program against the literature. A graphical comparison of the stress results showed that the program showed the proper relationships and magnitudes to confirm agreement The plastic rectangular beam problem showed an error less …

Three Installations: A Thesis Chronicle, Jonathan F. Kline

Theses

Not listed.

Video Boundaries, James E. Lyle

Theses

Not listed.

Optimization Of A Photographic Shutter By Minimization Of Closing Time Variability, Steven D. Daniels

Theses

A photographic shutter was considered, comprised of a mechanically driven, pivoted opening blade and a spring driven, pivoted closing blade which is released by a magnetic holding coil through an armature lever. The magnitude of the viscous drag of air on the closing blade is approximated, and its effect on the travel time (lag time) of the blade is determined to be insignificant. A set of equations is derived representing the dynamic performance of the combination of the closing blade and the armature lever. These equations are used to develop a mathematical representation of the variation in lag time due …

Gpss Compiler/Simulator, Jacquelyn Van Dellon

Theses

As with any large software project, the first priority of this thesis is program correctness in the GPSS compiler and correct simulation statistics. Several distinct processes are gone through in the construction of any compiler/simulator: development of specifications, indication of the goals, design, implementation, evaluation, and maintenance. The specifications of the GPSS compiler/simulator were introduced in the thesis proposal. The VAX/VMS 11/750 will be the machine which this GPSS compiler/simulator uses because of the supported 'C language, a Command Language Definition Utility, and accessibility by this author. The implementation language, 'C, was chosen based on ease of readability, ease of …

Behavior Of Joints Using Reinforced Polymer Concrete Under Seismic Loading, Ishac H. Kafrouni

Theses

This report describes the analysis and testing of two types of exterior beam-column joints conducted at New Jersey Institute of Technology. The testing program consisted of six beam column joints with varying strength cementing agents in the joint region: normal, high strength and polymer concrete. Half of the specimens contained 1.5 percent by volume of hooked end fibers. The study of the behavior of these beam column joints has indicated 2 cases of failures: a critical region in which the inelastic behavior was controlled by bending and, a critical region in which the inelastic behavior was controlled by high shear. …

Design Of A Photoreactor For The Oxidation Of Toxic Pollutants In Water By Ozone And Ultraviolet Radiation, Shahab Rashid Khan

Theses

A photoreactor has been designed to oxidize refractory chemicals found in water using ozone and ultraviolet radiation. The feasibility of the ozone/UV process has been examined by conducting experiments with three model compounds, namely, (1) o-chlorophenol (2) m-chlorophenol and (3) p-chloro phenol. For o-chlorophenol and p-chloro-phenol, reactions were very fast with ozone/UV oxidation and somewhat slower with m-chlorophenol. It is concluded that UV irradiation increases the decomposition of ozone and the resulting unstable intermediates are much more reactive than ozone. Ultraviolet light also helps in decomposing the substrate molecules. The effect of UV upon decomposition of ozone is more pronounced …

High Speed Puncture Impact Studies Of Structural Foam Plaques, Shashi B. Kumar

Theses

The constant velocity high speed impact study was conducted on different thermoplastic and thermoset structural foam plaques to study their impact behavior. Plaques of Noryl, Polycarbonate, Polystyrene and Polyurethane were carefully chosen to represent a true sample of the manufactured product. Test plaques were marked such that specimens could be tested for variation in location, thickness of the plaque and variation between plaques. High speed puncture impact experiment was conducted on each specimen and the results were analysed.

The test results showed that the impact performance varied significantly over the plaque. Noryl and Polycarbonate did not exhibit any correlation for …

An Interactive Procedure For Numerical Design Optimization, Jaehwan Lee

Theses

An interactive version of the numerical design optimization method of Pappas for the solution of nonlinear optimization problems is presented in this thesis, A designer intervention strategy is employed herein for interactive optimization to allow the designer to control and manage the optimization process. This procedure embodied in the interactive CADOP6 program is tested on the ten bench mark problems of Eason and Fenton to illustrate the designer intervented optimization process and to provide a comparison with the fully automated procedure of Pappas This designer intervented interactive program appears more effective and faster than the completely automated CADOP5 code on …