Digital Commons Network^™

Semicontinous Ph-Parametric Pump : Experimental Study, Hsien-Chih Lee

Theses

Voidage of SP Sephadex (C-50) ion exchanger at different aqueous buffer concentration and the pH have been estimated from draining the interstitial aqueous. Experimental results of the SP Sephadex (C-50) voidage at pH cycling zone are in quantitative agreement with previous test method, so the voidage estimated from draining the interstital aqueous can be used in pH-parametric pumping. The optional displacement volume in semicontinuous pH-parametric pump of different buffer concentration can be predicted from voidage. A semicontinuous pH-parametric pump for separating proteins has been experimentally investigated using the model system haemoglobin and albumin on a. SP Sephadex (C-50) ion exchanger. …

The Countercurrent Multistage Desorption Of The Acetic Acid/Water Solution With An Inert Vapor, Michael John Danko

Theses

The desorption of a acetic acid and water solution with an inert gas was experimentally investigated using a perforated plate distillation column having 17 actual trays. An inert air stream flowing countercurrent was used to strip the water from the acetic acid and water solution.

The feed composition was 0.2509 mole fraction acetic acid. The experimental results showed the best obtainable separation to be 0.16118 and 0.3965 mole fraction acetic acid in the overhead condensate and bottoms respectively, at an average column operating temperature of 56.0 degrees centigrade. The concentration of acetic acid predicted by calculation is 0.003917 and 0.9860 …

A Kinetic Study Of The Reactions Of Poly-L-Lysine With 1-Halo-2, 4-Dinitrobenzenes, Raymond K. Rakowitz

Theses

The kinetics of the reactions of poly-L-lysine with 1-Fluoro, 1-Chloro, 1-Bromo, and 1-Iodo-2,4-Dinitrobenzenes have been studied. The investigation was done at 25°C as a function of pH and concentration. In all cases the rate of reaction increased as pH increased. In the reactions of Chloro, Bromo, and Iododinitrobenzenes with Polylysine the reaction rate is the composite of two rates; one associated with the random coil and one associated with the helical conformation. For the reaction of Fluorodinitrobenzene with Polylysine the reaction rate is the composite of four rates; two associated with the random coil and two associated with the helical …

The Determination Of The Operating Characteristics Of A Newspaper Camera Department By Using Queueing Analysis, Owen Smith

Theses

The methods of operation of many newspaper camera departments have been established over a long period by many different supervisors and department heads. The system may have been good once but went bad because the nature of the department's operations changed without corresponding changes in the system. The production manager must be able to detect when a system needs modifying. Presently, there are few tools available to the manager for evaluating the effectiveness of the department. The goal of this study was to demonstrate how a very simple analytical technique could be applied to a camera department's operations and, thereby, …

A General Purpose Sensitometer For Routine Sensitometric Testing, John Lumia

Theses

A Kodak Model 101 sensitometer has been improved from the original design and also been made more versatile so as to be able to expose a greater variety of general-purpose films. Improving the machine has been accomplished by modifying the shutter to produce an exposure time of 1/20 second instead of 1/5 second, thus eliminating reciprocity law failure from calculations, and also complying with the American National Standards Institute specification for exposing continuous -tone films. The previous tungsten lamp has been replaced with a tungsten-halogen lamp. Versatility has been added to the machine by introducing a xenon-flash lamp in the …

Health: How To Manage It, Gail A. Fraser

Theses

Unavailable.

The Nude, Catharine Monoki Di Lella

Theses

None provided.

Characteristics Of Thermoplastic Sensitivity Due To Thickness, Jeffrey Fleisher

Theses

Thermoplastic, as a relief image recording material, has several advantageous characteristics. All processing is dry, development is almost instantaneous and in situ, and the recorded image can be erased and reused. Theoretical studies have shown that the amount of relief image formed in a thermoplastic is a function of the thermoplastic thickness and frequency of input exposure. This thesis shows that this relationship is valid under a number of physical restraints. Results indicate that there is a thickness to input-signal-modulation interaction within the thermoplastic. With variable frequency sinusoids as the input, the physical structure of the relief fringes formed is …

The Investigation Of Metameric Grays For The Testing Of Spectral Changes In The D5000 Standard Illuminant, Chun-Fai Alexander Wat

Theses

Very often, different results are obtained when colored originals and/or reproductions under different so-called standard light sources are evaluated. A possible explanation for the different results is that not all admissible standard sources have the same spectral power distribution, either due to differences in manufacturing or due to aging. A possible solution to the problem would be to determine how the spectral power distribution of a given illuminant differs from the standard (D5000) distribution by visually comparing suitable metameric grays with a stable non-selective gray under the illuminant in question. This comparison would serve as a quick and inexpensive way …

Fatigue Stress Analysis, William Nowak

Theses

Not listed.

The Determination Of Line Spread Functions For Unconventional Photographic Emulsions, Peter Jann

Theses

System mean normalized line spread functions with 90% confidence limits were determined for four emulsions. These emulsions or film materials were Kodak Panatomic-X, H & W Control type #77 , 3M #7842 dry silver , and Xidex DMCF diazo. The method of edge gradient analysis was employed with replication of n = 3. Microdensitometer degradation was not eliminated from these system mean normalized line spread functions. Microdensitometer mean MTFs with 90% confidence limits were determined for different types and/or modes of instrument operation with replication of n = 2. Due to a lack of precision in the determination of the …

Production Of A Micro-Scale Linear Density Wedge, Lawrence Mattison, Roger Triplett

Theses

In the evaluation of conventional photographic imaging systems the non-linearity of the macroscopic curve can easily be dealt with by examining the "effective exposure" rather than expressing the density or transmittance. Dealing with the nonlinearities on a microscopic level, however, is very difficult since they result from development adjacency effects. A tool was made using a "V-shaped" groove design by G.W. Schumann which consists of a series of microscopic linear density wedges. The density wedges were made by filling V-cut grooves in a high quality acrylic plastic with a carbon-epoxy dispersion. The density wedges have been produced at the frequencies …

The Use Of Fourier Analyzed Square Waves In The Determination Of The Modulation Transfer Function Of Photographic Materials, David Moffett, John Stanton

Theses

Fourier analysis and a computer were used to generate the Fourier series and coefficients for the transmission distribution of a square wave target and the effective exposure produced on Kodak Plus-X film. This was performed in an effort to find a workable alternative to the proposed American National Standards Institute (ANSI) method for the determination of the photographic modulation transfer function. The results showed that the square wave method generated a curve with the same general trend as the conventional ANSI method. The Fourier analyzed square wave method had a greater degree of variability than did the standard method. The …

The Affective Meaning Of Color, Henrietta N. Senecal

Theses

Henrietta N. Senecal’s The Affective Meaning of Color explores how individuals emotionally respond to color, emphasizing the personal and psychological significance of color perception. Drawing from psychological, physiological, and cultural theories, the thesis critiques standardized color interpretation systems—such as those by Luscher and Don—and argues that affective color meaning varies greatly between individuals. Senecal supports this claim with an informal community survey, where participants matched colors to emotion-laden words. Results revealed both common associations (e.g., red with anger or love, black with death) and significant variation, reinforcing the idea that color interpretation is deeply personal and often shaped by context, …

In Search Of The Sources Of Rationality: A Study Of The Work Of Jerome Bruner, Keith Weeks Lyou

Theses

Unavailable.

An Evaluation Of The Sherwood S-12 System For Use With The Sma 12/60, Thomas Kankoski

Theses

None provided.

So2-Scrubber Technology : Double Alkali Mode, Krishna K. Rao

Theses

Double alkali (D/A) processes for the desulfurization of flue gases occupy an increasingly important role in applied technology.

D/A processes involve two steps, namely, scrubbing and regeneration. In the scrubbing step, the alkali (Na₂SO₃) reacts with SO₂. In the regeneration step the acid formed, NaHSO₃, reacts with an alkali to regenerate Na₂SO₃.

This study was focused on the regeneration step. Regenerants investigated were slurries of lime and limestone. The major factors studied were reactor configuration and mixing patterns.

These systems were investigated in a batch, backmix, and plug-flow …

Municipal Point Source Pollution In The Hackensack Meadowlands Estuary, Alfonso Augustine Hernandez

Theses

A study was performed to evaluate the effectiveness of various sewage treatment facilities in the Hackensack Meadowlands District. The study dealt with overall plant efficiencies based on percent removals of suspended solids and Biochemical Oxygen Demand although other parameters were also included.

Samples for this study were obtained from the inlet and outlet channels of the individual plants. The parameters studied were: Suspended Solids, Biochemical Oxygen Demand, Total Nitrogen, Nitrate-Nitrite Compounds, Total Organic Carbon, Orthophosphate-P, Total Oxygen Demand and Fecal Coliform. Results obtained were averaged so as to collectively represent wet and dry weather conditions.

The results indicate that most …

The Multiple Losses Of Housewives Who Become Widowed, Emily Carton

Theses

Housewives who become widowed suffer from the loss of two roles - that of wife and worker. Since housework is not traditionally considered employment, these women are not given equivalent financial or emotional support that one would give retirees. This paper will define housework as an occupational identity and will examine the social and financial similarities between the housewife who becomes widowed and the individual who is forced to retire from long term employment.

Laser Imaging With A Holographically Produced Lens, Eric Schwartz

Theses

A process is outlined by which a hologram has been produced for use as an imaging device in a laser machining apparatus. Such a hologram has been termed a hololens. The hololens was initially produced by recording the interference between a coherent plane reference wave and an object wave which was produced by passing a plane wave through a transparency. The recording film was positioned at Brewster's angle and the laser light was polarized normal to the surface of the glass plate substrate in order to reduce optical noise caused by interference between the recording beams and their reflections. This …

Administrative Manual For Schools Of Nurse Anesthesia: A Research And Development Study, Joyce W. Kelly

Theses

Unavailable.

The Separation Of Proteins Via Parametric Pumping And Ion Exchange, Paul Albert Falcon

Theses

A pH parametric pump, coupled with ion exchange, was used in an experimental investigation to separate a protein-water binary mixture. The model system consisted of a hemoglobin-water binary mixture. A pH gradient throughout the parametric pumping column was sustained with the use of hollow fiber devices incorporating phosphate buffer circulation.

Data is presented for both batch and semi-continuous recuperative mode pH parametric pumping. Continuous pH parametric pumping for protein isolation has also been envisioned.

No attempt has been made to optimize this newly devel-oped process; however, certain parameters are suspected of controlling separation, including buffer concentration, half cycle time, packed …

The Settling Of Particles In A Square Contained Medium, Richard S. Matyas

Theses

Stokes' Law, has been standardly utilized to calculate the terminal velocity of falling particles. However, the limitation of Stokes' Law is that it does not take into account the container walls and their resulting drag forces. Extensive work with additional drag due to cylindrical container walls has been examined by many investigators. The classical and earliest is the well know Ladenburg Correction which cannot be utilized with non-cylindrical containers. This experimental thesis examines the analog of the Ladenburg relationship for a square container. This experimental thesis was undertaken to experimentally determine the value of the constant K₁ for a …

Thermalhardening Offset Lithographic Printing Plate, Eric Leonard

Theses

Offset lithographic printing plates, until several years ago, used incoherent light sources for image creation in light sensitive coatings. These light sources are primarily in the ultraviolet light region. Image creation, using an incoherent light source, requires either a film negative or positive and long exposure times. Exposure time is dependent on the sensitivity of the light sensitive coating and the light intensity. In recent years both equipment and plate suppliers have been working to develop offset lithographic printing plates which use coherent laser light for image creation. To date all recorded developments have worked on light hardening image creation …

Infrared In-Process Densitometer, Miroslav Piskacek

Theses

The development chamber for an infrared, in-process densitometer, which will monitor and display a characteristic curve of a standard sensitometric strip during development, was designed. The monitoring radiation is to be emitted by a sequentially pulsed array of IR diodes (RCA SG1009A) and detected by an array of solid state detectors (UDT-450 Photodiode/Amplifier combination). The output of the detectors, corresponding to IR transmission, is to be scanned, electronically converted into density, and displayed. Electronic scanning assures that processes with subminute total development time can be monitored. Optical losses of the system were estimated, and a model of the optical system …

A Consciousness Simulation Model, R. Edward Mitchell Jr.

Theses

The thesis titled "A Consciousness Simulation Model" by R. Edward Mitchell (1977) explores the theoretical design of a digital model aimed at simulating human consciousness. The model is structured around a collection of independent processing modules that mimic various human cognitive and emotional processes. These modules include components for thought selection, ego/achievement, memory, and emotion processing, which interact with one another in a fashion that simulates aspects of human thought and behavior.

Mitchell's primary goal is to develop a system that could behave more like a human, particularly in communication and decision-making processes, to improve human-machine interaction. The thesis highlights …

Point Of Operation Safeguarding - A Metal Forming System Approach, William Baker Eaton

Theses

The mechanical power press in its application in the metal stamping and forming industry has been misinterpreted as a selfcontained metal forming system. Examination of the production routines involving the press show that this machine is actually only one elemental component of the metal forming system and not the total production unit.

Authoritative codes and standards pertinent to the mechanical power press have reflected this misinterpretation by not including system considerations in their contents. These omissions have resulted in the providing of safeguards which do not properly reflect the particular characteristics of the metal forming system to which they are …

Thermal Decomposition Products Of Kynol And Nomex With Reference To Structure And Toxicity, Shaker H. El-Sherbini

Theses

The purpose of this investigation was to study the combustion products of KYNOL and NOMEX as a fire retardant fibers. From the quantitative analysis data of the combustion products, the polymer structure is discussed and the property of thermal stability is explained.

From the analysis of the combustion products, the toxicity indices for the two fibers are determined. It is found to be 0.1 for KYNOL and 0.71 for NOMEX. This can be interpreted to mean that, if one gram of MIDI, is decomposed and the combustion products were diffused in one cubic meter of air, the probability of dying …

The Guarding Of The Principal Metalworking Machines : The Techniques, Need, And Responsibility, Peter James Schwalje

Theses

This thesis examines the guarding of the principal metalworking machines employed in the economy. The machines selected for consideration comprise the bulk of metal processing equipment utilized in the basic fabrication and manufacturing processes. It has been intuitively recognized that this equipment has been involved in a significant quantity of industrial accidents by the very nature of the hazards created by their normal use. Consequently, a need to develop some form of guarding or means of operator protection is called for.

In order to examine this question the principal metalworking machines are enumerated, their basic operating characteristics set forth,, and …

Analysis Of Combustion Products Of Kynol And Nomex, Abdul Halim Hassan Housny

Theses

The gaseous products generated by flaming combustion of Kynol and Nomex fibers under the same conditions (temperature 300-700°C, natural air) were quantitatively analyzed by infrared spectrophotometry, gas chromatography, mass spectrometry and a colorimetric tube method. The four techniques were chosen to examine the wide range of volatile and condensable products expected due to their different capabilities and sensitivities.

The main gases generated were carbon monoxide, carbon dioxide, methane and benzene.

The mass spectrometer was used to identify the condensed vapors. These were mainly phenol, methyl phenol and dimethyl phenol from the Kynol fiber and benzene, aniline, diaminobenzene, benzoic acid, benzonitrile, …