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Simulation Of A Single Feed Fractional Distillation Column Using The Thiele-Geddes Procedure, M. S. Abolahrari

Theses

This thesis constitutes a simulation model of a single feed frational distillation column consisting of a single phase distillate, liquid or vapor product, an equilibrium stage reboiler, and a cascade consisting of theoretical equilibrium stages. The model limitations in addition to the single feed and the single phase distillate are 20 identifiable components, and 100 theoretical equilibrium stages. The thermodynamic data required are vapor-liquid equilibrium data and vapor-liquid enthalpy data, both assumed to be correlatable as functions of temperature. Compositional dependence of the thermodynamic data is ignored, but minor pressure variations throughout the cascade can be incorporated into the vapor-liquid …

The Chemistry Of Azides, Edward D. Nelson

Theses

A review of the decomposition of alkyl and aryl azides by thermolysis and photolysis has been accomplished. Organic azides are a very distinct species that undergo its own unique reactions. Azides decompose to form an electron deficient nitrogen having a sextet of elcctrons. This is called a Nitrene. Nitrenes can exist in the singlet or triplet state. The triplet behaves like a diradical. General and specific reactions of nitrenes have been shown with detailed mechanisms accounting for the products. The main modes of nitrene stabilization are rearrangement, hydrogen abstraction and insertion. Insertion is characteristic of singlet species and abstraction characteristic …

Siegmund Lubin: Moving Picture Pioneer 1851-1923, John Arthur Helley

Theses

Siegmund Lubin came to the United States of America in 1867, and six years later, after various setbacks, established an optical business in Philadelphia, Pennsylvania. Experiments in his leisure time led him to a career in moving pictures. His success and accomplishments in the period of two decades were entangled in legal battles which resulted in his return to the optical business.

Mr. Lubin built several studios across the United States in a westward expansion. His studio in Coronado, California in 1915–16, with eastern controls, proved to have been typical of the western studio during the early motion picture days. …

A Cost Of Capital And Capital Budgeting Decision Model Related To New, Small, High Technology Corporations, Bruce R. Robinson

Theses

None provided.

Ic Design For The Tv Receiver, D. W. Rhee

Theses

Not listed.

Investigations In Post-Fixation Physical Development, R. Jerry, J. Nelson

Theses

The procedure outlined by Matejec, Photograpische Korrespondenz, 104, 153 (1968), fixation in a thiosulfate-sulfite solution to which AgBr has been added, followed by washing in 1% sulfite solution, and development in a metol-sulfite-AgNO3 developer, was tested on seven silver iodobromide emulsions, each of a different average grain size. Samples were exposed, and processed by chemical and physical development. Matejec’s results, equality of threshold speed with post-fixation physical and chemical development, could only be realized with a very fine grain emulsion and high intensity exposure. It was found that the efficiency of physical development, relative to chemical development, is inversely related …

Insulation Coordination On A 115 Kv System Addition To The Rochester Gas And Electric Corporation System, Clifton Olson

Theses

The Transient Network Analyzer is used to determine the maximum magnitude and duration of transient and sustained overvoltages which can occur on a system during any change of state. Where a change of state may be the energization or deenergization of a line by operating a circuit breaker, the occurrence of a fault condition or a sudden loss of load. These overvoltages are then used to establish equipment needs and duties, design alternatives which meet these requirements and establish acceptable operating procedures. With these established, the transient voltage magnitudes are then used to establish the transmission line Basic Insulation Level …

Relationship Of Preferred Tone Reproduction To Picture Size, David Miller

Theses

A relationship between preferred tone reproduction and final picture size is suggested in many forms in the literature and in practical experience. This project uses photographic halftone prints varying in tone reproduction and produced at different sizes to investigate this relationship. The tone reproduction variations are introduced electronically using an RCA color scanner and a method of eigenvector analysis is used to reduce these tone reproductions down to their important components. The final set of prints consisting of ten tone reproductions, three reproduced sizes, and two sharpnesses are evaluated to determine their subjective quality in the judgement of a group …

The Fate Of Hazardous Polluting Substances In An Aqueous Environment, Robert Paul Casani

Theses

The fate of Hazardous Polluting. Substances (HPS) in an aqueous environment has been investigated using ultraviolet light. Chlorobenzene, o-cresol and nitrobenzene were used as model HPS for this study. The kinetics were followed and good first order plots were obtained for all compounds. The temperature of the reaction was shown to effect the rate. Solid insoluble and soluble non-volatile products were formed in the photolytic reaction of the three model systems.

The Aging Of Sbr Vulcanizates, Arthur Robert Leckart

Theses

A literature survey was conducted on SBR aging, Being vulnerable to attack by the forces of nature (such as ozone, oxygen, heat and light), SBR vulcanizates requires the addition of chemicals to retard aging. Phenylamines were found to be the best type of antiaging additives, The effectiveness of other antiaging additives were examined. Although the mechanisms of aging are not perfectly understood; sane theories and aging reactions are discussed.

Stability Of Large Flexible Satellite, Manoj P. Mehta

Theses

The stability of a gravity gradient satellite with a rigid main body and elastic antennas is studied using Liapunov's Direct method. The complete conditions for equilibrium and stability for a particular class of two dimensional models are determined. Previous work restrained the analysis to elastic stability, in the small, and only for equilibrium positions corresponding to zero initial elastic deformation. Although the work presented here is for two dimensional motion, the intent is to bring forth an approach to the determination of the complete equilibrium and stability criteria in the large as well as the small. The effect of different …

Additive And Subtractive Color, Elizabeth Ann Maclean

Theses

None provided.

Sculptural And Functional Explorations In Wood And Metal, Scott Gilliam

Theses

None provided.

Computerized Computation Of Counter-Current Extraction Problems For Ternary Liquid Systems, Albert Warren Patterson

Theses

A Fortran computer program has been developed that will calculate the number of theoretical equilibrium stages required for a countercurrent liquid-liquid extraction design problem. It also furnishes a complete stagewise material balance. Further utility can be found by using it for optimization studies. The program can be utilized for three-component systems that form one pair of partially miscible liquids, the most frequently occuring situation. The program was written for the General Electric Mark I Time-Sharing System.

The program has a practical advantage in that isothermal liquid equilibria data are used directly for calculation purposes. No use is made of theoretically …

Manpower And Productivity In The Construction Industry, John A. Purciello

Theses

The relationship between manpower and productivity is an important factor in the area of increasing construction costs. Manpower supply is affected by worker mobility, influx of minority workers, work accidents, and training and apprenticeship programs.

A survey was conducted in the state of New Jersey to determine if a manpower shortage existed. The survey was conducted by submitting questionnaires to contractors, unions, owners, and architect-engineers.

The results of the survey indicated that a manpower shortage does exist, and that the shortage has influ enced construction costs, Furthermore, as a result of the increasing costs, indications of a decline in new …

Computer Simulation Of A Linde "Double Column", John A. Bazan

Theses

The purpose of this thesis is to develop a Fortran Computer Program to simulate the operation of a Linde "Double Column" for the separation of air into oxygen and nitrogen. The model outputs the number of contact stages required, the reflux ratio, the heat loads (condenser and reboiler, and the five profiles of temperature, pressure, vapor flow rate, liquid flow rate, and light component composition. From this data, the proposed design can be evaluated, and the effect of varying operating conditions explored.

A Solid State Kinetic Study Of Potassium Permanganate In Alkali Halide Disks, Joseph Paul Cusumano

Theses

The stoichiometry and the kinetics of the reactions of KMnO₄ in KCl and KIO₄ in KCl were studied. The kinetics of the reactions were studied at three different temperatures to obtain the thermodynamic parameters. In addition, these reactions were studied in KBr and RbI matrices. The data was obtained using infrared spectrophotometer measurements.

The reactions all appeared to be first order with respect to the permanganate ion. The stoichiometric studies indicate that the Mn₄^- is converted to Mn⁺⁺ and the Mn⁺⁺ ion apparently catalyzes the reduction of KI₄. The results indicate the …

Predictions Of Catalyst Utilization With Continuous Replacement In Multistage Continuous Reactors From Batch Reactor Data, Norman M. Feinberg

Theses

This thesis presents a new equation for predicting catalyst utilization with continuous replacement in multistage continuous reactors from batch reactor data.

An equation is derived from experimental data for a. no-replacement system which predicts catalyst activity as a function of time. The assumption of constant inventory, constant replacement rate and perfect mixing permit the calculation of catalyst age distribution. By combining age distribution with a measure of catalyst productivity, as determined from activity as a function of time, an equation for catalyst utilization was derived. The case used to prepare this equation was where the activity decline curve appears as …

Analysis Of Decomposition Gases And Leach Water From Controlled Sanitary Landfill, Robert Gargano

Theses

A sanitary landfill was simulated by placing "refuse" between two layers of soil in 6" by 24" cylinders. Canine nutriment was used to simulate the refuse. Once the refuse began to decompose, the decomposition gases were collected in a gas cell and analyzed in an Infrared Spectrophotometer. When gas samples were not taken, the decomposition gases were vented through a water trap (to prevent air from backing up into the system) into the atmosphere. Distilled water was added and withdrawn at two week intervals to leach out the pollutants.

From the Infrared analysis, the decomposition gases were determined to be …

Separations Via Semicontinuous Parametric Pumping, Edward H. Reiss

Theses

A semicontinuous parametric pump with batch operation during one half-cycle and continuous operation in the other half-cycle was experimentally investigated in the model system, toluene-n-heptane on silica gel adsorbent. Comparison was made with analytical results obtained by the equilibrium theory. It was shown that when the penetration distance for the cold cycle was less than or equal to that of the hot cycle and the height of the column, the rate of production of pure solvent in the semicontinuous pump may become quite large relative to that in the continuous pump.

Graphic Communication Education In Maine, Howard Holinger

Theses

None provided.

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 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

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, …

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 …

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

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 …

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 …

Plastics In Art, Patricia Hincks

Theses

None provided.

Liberated Paintings, Susan Russo

Theses

None provided.