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Articles 31 - 60 of 73
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The Effect Of Chromatic Aberration In Process Lenses On The Copying Of Reflection Halftone Dots, Burdette A. Saunders
The Effect Of Chromatic Aberration In Process Lenses On The Copying Of Reflection Halftone Dots, Burdette A. Saunders
Theses
A method for evaluation of copydot quality is determined. This method is applied to the problem of determining the relative copydot quality of two films of different spectral sensitivities, while using two process lenses with measureable amounts of chromatic aberration.
Image Spread Characteristics Of Vesicular Films, Ira Long, Alan Turner
Image Spread Characteristics Of Vesicular Films, Ira Long, Alan Turner
Theses
An altered Bausch and Lomb metallograph, in conjunction with a 150 watt high-pressure Xenon-arc lamp, was used to image 50µm uniformly illuminated round spots on several vesicular emulsions and a silver emulsion to determine image spread characteristics with increasing exposure times. Vesicular films tested include Kalvar Types 16, 143, 163, and 164, a sample of Xidex Blue and a high resolution aerial film. It was found in all cases that image spread was more profound in vesicular films than in the silver film tested. It was also found that ten minute and twenty minute periods of time between exposure and …
The Effect Of Ultrasonic Vibration On Mass Transfer In A Packed Column, Joseph Walter Stanecki
The Effect Of Ultrasonic Vibration On Mass Transfer In A Packed Column, Joseph Walter Stanecki
Theses
The object of this research was to investigate the possibility of using externally supplied ultrasonic vibration to surface of a packed distillation column operating at total reflux to improve the separation. The apparatus used for this experimentation consisted of a 2 inch ID Pyrex column having three pairs of ultrasonic transducers epoxied equidistance along the external surface of the column. Each pair of transducers was driven separately by a 50 watt amplifier! power supply and a sine/square wave generator.
There were three types of binary mixtures covered during experimentation: minimum boiling azeotropes, maximum boiling azeotropes and full range mixtures. In …
The Reaction Of P-Nitrophenyl Acetate With Lysine Hydrochloride And Poly-1-Lysine Hydrobromide, Emmanuel Plange Matteer
The Reaction Of P-Nitrophenyl Acetate With Lysine Hydrochloride And Poly-1-Lysine Hydrobromide, Emmanuel Plange Matteer
Theses
The reactions of p-nitrophenylacetate with L-lysine hydrochloride and poly-L-lysine hydrobromide as a function of pH were investigated.
The results indicate that both compounds react with the substrate in the pH range 7.0-10.0 with an apparent optimum pH in the region near 9.65.
Poly-L-lysine reacts more rapidly over the entire pH range investigated than does L-lysine.
Effectiveness Of Training Programs For Graduate Engineers, V.C. Rajashekar
Effectiveness Of Training Programs For Graduate Engineers, V.C. Rajashekar
Theses
This thesis represents an investigation of effectiveness as a result of engineering training. The basic elements of effectiveness and its learning process are explained and said that the effectiveness could be learnt and improved.
The term training, is basically the process of education and training. But training cannot be performed as an individual, but is performed as a group. Therefore training a group with having so many individuals needs careful consideration in designing a training program.
In order to get the broadest possible picture of current thinking and current activity in the area of company training programs for graduate engineers, …
A Study Of The Optimization Of Ethylene Production In A Tubular Reactor, Richard W. J. Robertson
A Study Of The Optimization Of Ethylene Production In A Tubular Reactor, Richard W. J. Robertson
Theses
The pyrolysis of ethane is a complex reaction involving six individual reactions in a reactant mixture of thirteen components. It is further complicated by the deposition of carbon along the reactor walls. The carbon buildup eventually necessitates reactor shutdown, During the intermediate stages the reactor experiences a gradual increase in inlet pressure which affects the reaction conditions, Optimum temperature profiles exist because the yield goes up with increasing temperature, but, consequently, the reactor must be shut down and cleaned out with increasing frequency. The combined effect causes the yearly production of ethylene to go through an optimum.
To find this …
The Creep And Stress Relaxation Behavior Of Silver Bearing Copper Wire, Alfred Fox
The Creep And Stress Relaxation Behavior Of Silver Bearing Copper Wire, Alfred Fox
Theses
Creep and stress-relaxation experiments were performed on silverless and silver bearing copper in the temperature range 73F to 250F. The creep experiments were conducted at constant load and temperature, the stress-relaxation tests at constant total strain and temperature for a total time period of 1000 hours. The effect of silver addition of up to 0.2 percent w/o (60oz per ton) on the creep and stress-relaxation behavior of spectrographically pure copper (99.999+ Cu) as well as on that of tough pitch and oxygen free coppers of lesser purity was studied. Spectrographically pure copper was found to be much more susceptible to …
The Exploration Of The Decorative And Functional Use Of Riveting In Hollow Forms, David Pimentel
The Exploration Of The Decorative And Functional Use Of Riveting In Hollow Forms, David Pimentel
Theses
Not Included
A Handbook Of Intaglio Techniques, David Dickinson
Treatise On Chasing And Repoussé, Genie Goldberger
Thesis Diary: September 1971- May 1972, Bonnie Johanna Gisel
Calibration Of A Photometric Standard For Hard Dot Area Measurement, Steven K. Misar
Calibration Of A Photometric Standard For Hard Dot Area Measurement, Steven K. Misar
Theses
Discussed are the specifications for a Photometric Standard of Hard Dot Area. Mathematical approximations have determined the desired pattern and frequency to be; cross hatch and 100 lines/in. respectively. When measuring the Photometric Standard, deviation from the actual area is attributed to micromotion in the aperture and diffraction in the Densichron 3885d (Sargent - Welch Scientific Co.). The desired specifications in the Photometric Standard allow precise measurements of ± 5% area. A Hard Dot Area Meter was designed and constructed, which simulates a photometric method that theoretically eliminates deviation from the actual area measured. It was statistically tested against microscopic …
Graphic Image And Ceramic Form, Sandra Butler
Wood Firing, Robert Woo
Surface Enhancement Of Handbuilt Forms, Sara Rubin
Coffee, Chocolate, And Liqueur Sets, Carolyn Law
Landscape Forms, Colleen Kuntz
Liberated Paintings, Susan Russo
Plastics In Art, Patricia Hincks
The Evolution Of The Crafts From Function To Pure Sculpture, Elaine Martin
The Evolution Of The Crafts From Function To Pure Sculpture, Elaine Martin
Theses
None provided.
Landscapes In Gum, Barbara Johnson
Salt Glazed Clay Surfaces, Brian Williams
Personalized Glazes For My Work, Robert Black
Research And Exploration Of Stone Settings, Jonathan O. Parry
The Carousel: An Exploration Of Etching And Drypoint Techniques Through Integration Of Organic And Mechanical Symbols, Paul Porter
The Carousel: An Exploration Of Etching And Drypoint Techniques Through Integration Of Organic And Mechanical Symbols, Paul Porter
Theses
None provided.
A Study Of The Effect Of A Dielectric Field On The Solvolysis Rate Of Tert-Butyl Bromide In A Recycle Reactor, Rolf L. Ball
A Study Of The Effect Of A Dielectric Field On The Solvolysis Rate Of Tert-Butyl Bromide In A Recycle Reactor, Rolf L. Ball
Theses
Previous experiments at Newark College of Engineering have shown that a dielectric field can effect the rate of a chemical reaction. A theory was developed in this thesis to postulate how a dielectric field can increase the rate of a first order reaction whose rate determining step is an ionization. An experimental procedure was developed to measure the reaction rate constant of a tertiary alkyl halide with a solvent to test this theory. The solvolysis of tortbutyl bromide in aqueous ethanol (80%), aqueous dioxane (75%) and aqueous acetone (75%) solvent systems were the reactions selected for study. A total of …
The Development Of Langmuir's Adsorption Isotherms For Glucose And Fructose And The Separation Via Continuous Parametric Pumping, Jafir Abbas Jaferi
The Development Of Langmuir's Adsorption Isotherms For Glucose And Fructose And The Separation Via Continuous Parametric Pumping, Jafir Abbas Jaferi
Theses
The adsorption equilibria and adsorption rates of fructose and of glucose on aqueous suspensions of fullers earth were determined at various temperatures. The Langmuir adsorption equations were fitted to the equilibrium data and the Langmuir constants were determined so that isotherms could be developed for any pair of parametric pumping operating temperatures.
This glucose+fructose+water system was then subjected to continuous thermal parametric pumping for the separation of glucose and fructose. The operating conditions required for the separation were determined from the experimental adsorption rates and equilibrium isotherms. Samples taken from the continuous top and bottom streams were analyzed by polarimetry …
Studies Of Rare Earth Compounds, Rostam Mondegarian
Studies Of Rare Earth Compounds, Rostam Mondegarian
Theses
The work reported herein has consisted of miscellaneous studies of rare earth compounds.
- The Pr—As system was studied with a view to obtaining a ferromagnetic composition.
- Attempts were made to prepare ternary compounds by solid state reaction of PrAs, GdAs or YbAs with MnAs, CrAs or FeAs, and PrP, GdP, or YbP with MnP, CrP or FeP.
- Attempts were made to prepare quaternary compounds by solid state reaction of YbAs, YbP and GdAs with CdI2 in various molar ratios. In many cases new compouns appeared to be formed but because of complexity of the X—ray patterns it was not possible …
Equilibrium Calculations Via The Benedict-Webb-Rubin Equation Of State, Steven L. Sincoff
Equilibrium Calculations Via The Benedict-Webb-Rubin Equation Of State, Steven L. Sincoff
Theses
The performance of various vapor-liquid equilibrium calculations requires phase equilibrium data. One of the most versatile sources of this data is an equation of state, re-lating the pressure, temperature, and phase compositions it a single expression. The equation under study herewith is the eight constant Benedict-Webb-Rubin Equation of State.
This paper provides a computer program which evaluates the following types of phase equilibria: bubble-points, dew-points, and two phase flash calculations. Also included in this paper is the theoretical backround of the Benedict-Webb-Rubin Equation of State, calculational techniques, and the data used in the program.
Flow Behavior Of Molten Polymer Blends, Kryspin Pawel Maciejewski
Flow Behavior Of Molten Polymer Blends, Kryspin Pawel Maciejewski
Theses
An experimental study of molten polymer blends was made using the Instron Capillary Rheometer. The materials investigated were two phase blends of non-crystalline polymers (poIymethylmethacrystate-low Mw-polyvinylacetate, polyvinylacetate-polystyrene, polymethylmethacrylate-low Mw-polystyrene, polymethylmethacrylate-high Mw-polystyrene), crystalline polymers (polyethylene-polypropylene) and combinations of non-crystalline-crystalline polymers (polyethylene-polystyrene). Two methods of sample preparation were used, blending of a polymer pair in a molten state by the use of Brabender blender, and a simple manual blending of pellets in desired proportion. The Brabender blended polymer pairs show lower viscosities, this is interpreted molecularly as a result of a reduction of the amount of chain entanglement on shearing of the …