Digital Commons Network^™

An Approach To Energy Conservation In A Manufacturing Industry, William Polignano

Theses

The approach attacks the problem of control and planning of energy usage via three major categories. These areas are: detection, forecasting and reporting of energy usage.

To initiate any energy program the first step, is the identification of the areas that use the most energy, thus allowing detailed studies to be concentrated in these energy-intensive areas. The author has attempted to show which areas are energy-intensive in his employer's plants.

The second step is the accurate forecasting of energy usage. The author has attempted this via an econometric forecasting model that accurately predicts energy usage based on direct labor hours …

Growth Patterns Of Bacteria In Pressurized Sewage, Dennis Mazzei

Theses

Primary sewage was pressurized at 100 psi for one hour. The effects of this pressure on the growth patterns of general and nitrifying bacteria were examined daily for eighteen consecutive days using Standard Plate Counts and Most Probable Number (MPN) estimates. In conjunction with these tests, the degree of biodegradability was also determined by measuring both daily biochemical oxygen demands (BOD's) and dissolved oxygen levels.

Graphical analysis of experimental data compare the BOD's exterted [sic] by microorganisms to their respective numbers of colonies as determined by plate counts of both pressurized and non-pressurized sanitary sewage diluted to 3. 00%. The …

Ecuador And A Business Opportunity, Cesar Arturo Paredes Roldan

Theses

As a result of its recent status as a petroleum exporting country, Ecuador is enjoying an economic boom, which is expected to lead to the formation of new enterprises, the creation of jobs, the utilization of human and natural resources and the encouragement of harmonious development of the national economy.

This thesis is based on the belief that the private sector must assume a decisive role in the adequate implementation of Ecuador's industrial development programs, and it aims to show the feasibility of establishing there an enterprise that would manufacture domestic electric irons.

The coverage of the subject comprises three …

Sparsity And Decoupling In Load Power Flow Analysis, Kenneth Nazimek

Theses

This paper presents some recent ideas on and methods created by power engineers for the solution of the Load Flow Problem. Beginning with an analysis of the solution of large systems of linear equations, techniques employing elementary matrix operations are discussed to reduce the amount of calculations necessary to achieve repeated solutions. Recent interest in taking advantage of the characteristic sparsity of the admittance matrix is also examined. The problems of operating on and computer storage of large sparse matrices are investigated. Methods to efficiently order, store and work with large sparse matrices are discussed and demonstrated. The general acceptance …

The Anisotropic And Isotropic Strength Behavior Of An Illitic Clay, Miles M. O'Brien

Theses

The cause and the nature of anisotropy in a cohesive soil was investigated by direct shear and triaxial compression tests. Laboratory techniques and procedures used to prepare isotropic clay samples are given where consolidation was accomplished under hydrostatic pressure. Direct shear tests were performed on these specimens trimmed at different inclinations to the physical horizontal from the block samples. The ratio of undrained shear strengths in any direction to shear strength in the vertical direction was found to be equal to one, proving isotropy existed. Similar tests were performed on specimens trimmed from the same clay consolidated one-dimensionally. Results from …

Dynamics Of The Glucose-Insulin-Glucagon System, Joseph P. Hartmann

Theses

A computer model for the Dynamics of the Glucose-Insulin-Glucagon System has been developed for a 17.5 kg canine using the Continuous Systems Modeling Program (CSMP) for the 360 Computer System. The major body components controlling the glucose dynamics (liver, pancreas, body muscle, blood flow, and body fluid compartments) have been modeled in terms of either their production, absorption, or transport of glucose, and the concentration levels of both the hormones and substrates perfusing the body component. A set of mneumonics has also been developed to label the hundreds of constant and variable terms required to describe a complex system of …

An Experimental Study Of Separation Of Binary And Ternary Gas Mixtures By Parametric Pumping, Stephen E. Belsky

Theses

An experimental study of gas parametric pumping is presented which examines the purification of helium using silica gel to remove the impurity carbon dioxide. Low gas flow rates are used to allow adequate time for equilibrium to be approached, assuming intraparticle diffusion is the controlling mass transfer step. By varying the cycle time, at long cycle times, the effect of penetration length (a function of dynamic capacity) is indicated. Also, at low cycle time, the effects during pressure changes become more significant.

Using low flow rate improves separation effectiveness if evaluated at equal dynamic capacity. When using low flow rate …

Air Control In A Newark City Subway Station, Robert H. Burch

Theses

During the period from June, 1974 to January, 1976, 103 24-hr samples of the air at the Broad Street station of the Newark City Subway were collected by cascade impactor. The size distributions (based on Stoke's equivalent diameters) of the total suspended particulate matter were determined gravimetrically. Samples were also analyzed by atomic absorption spectrometry to obtain information on the concentration of iron, manganese, lead, copper, zinc, and cadmium in each size fraction. The geometric mean particulate level was found to be more than twice the Federal Ambient Air Quality Standard and triple that of ambient Newark air sampled nearby. …

The Effect Of Ultrasonic Vibrations And Catalyst Particle Size On The Decomposition Of Cumene, John F. Pietranski

Theses

The effect of ultrasonic vibrations on the vapor phase decomposition of cumene to benzene and proplyene was investigated using silica-aluminum as the cracking catalyst.

The system consists of a tubular reactor with a 4 inch long catalyst chamber made from 1 cm. diameter stainless steel tubing. The catalyst bed was irradiated from above by means of an ultrasonic horn.

The reactor was run at temperatures of 850 to 950°F., frequencies of 26,000 and 39,000 Hz, with a power innut of 0.30 watts/cm.² . Feed rates of 100 to 300 gms./hr. and catalyst particle sizes of 0.0209 to 0.358 cm. …

Non-Equilibrium Parametric Pumps For Separating Liquids Or Gases, Anil Krishna Rastogi

Theses

An experimental and theoretical study has been done of Non-Equilibrium parametric pumps. Mathematical models and computer programmes are developed for both thermal and heatless parametric pumps based on non-equilibrium conditions and linear isotherms. A mathematical study was done for thermal parametric pumps whereas both experimental and theoretical studies were made for a heatless parametric pump. The effect of different operating conditions has been investigated on the separation of NaCl-H₂O via a thermal parametric pump and He-CO₂ and He-C₃H₆ gas mixtures via a heatless parametric pump.

The experimental study of heatless parametric pumps was extended …

Operation Bookwatch, Vivian Mallison

Theses

None provided.

Copper Physical Development Of Copper Latent Images, Gregg Tashker, Peter Schreiber

Theses

Copper physical development of copper latent images was researched. The proposed method for producing copper latent images was to soak a titanium dioxide in a copper (II) sulfate nucleating bath and expose to UV radiation below 4l0nm. The exposures were to produce the copper latent image. Three physical developers were used to try to intensify the latent images. The developers utilize an iron (II)/iron (III) redox system to reduce copper (II) sulfate to copper metal. The developers also contain carboxylic acids as complexing agents for iron (III) ions and cationic surfactants for stability. The printout achieved was not stable and …

Correlation Study Between Subjective And Objective Scene Classifications, Craig Campbell

Theses

In addition to the quality of an original (transparency or reflection) preferred halftone reproduction is also dependent on scene classification. That is, how the tones of the original are rendered. If the majority of the picture area contains light tones, it is referred to as a high key image. Should the majority of picture area be confined to dark tones, it is referred to as a low key image. When the picture area is composed of the entire tone scale (white, grays, and black), it is referred to as a normal key image. The problem of how to objectively classify …

Mountain, James Kwiatkowski

Theses

None provided.

A Study Of The Effect On Direct Stencil Edge Definition Of Emulsion Thickness, Screen Mesh Count, Fabric Thread Thickness And Coater Blade Thickness, George Bedirian

Theses

The present study arose out of a desire to test the assumption that in order to obtain direct stencils with good edge definition, one either had to use fine screens or. If using a relatively coarse screen, apply multiple coatings of emulsion to the screen before making the stencil. Neither alternative seemed satisfactory, since the first did not allow optimal use of the scope of screens available, and the second entailed an expenditure of time and supplies that could possibly be shown to be unnecessary. It was therefore determined to carry on an experiment that would show whether direct stencils …

An Outpatient Environment For Fetal Monitoring, Claude Hutcheson Jr

Theses

None provided.

Quality Aspects Of Holographic Image Deblurring, Robert Kalita, Lawrence White

Theses

The process of holographic image enhancement was investigated with respect to image quality. A maximum improvement in MTF of 60% was achieved. The process itself was found difficult due to the critical natures of many of its steps. The theory of image enhancement by optical processing is explained in detail and the reasons for using a holographic filter are discussed.

A Static Stress Analysis Of The Glass Metal Truss-Type Column Of The Van De Graaff Accelerator, Rudolf Prechter

Theses

A static stress analysis of the glass-metal truss type bridge of a Van de Graaff Accelerator is presented. The solutions are first computed using conventional methods such as method of joints and the method of virtual work. Secondly, the solutions are found using a computer program, SAP IV, which is a structural analysis program for static and dynamic response of linear systems. The solutions are then compared to each other and appropriate conclusions are presented.

The Effects Of Pressure On The Biodegradability Of Sanitary Sewage In A Model Activated Sludge Reactor, Nicholas A. Mezei

Theses

Based on existing information concerning the effects of pressure on the biodegradability of sanitary sewage, a model activated sludge reactor was used in conjunction with pressurization to determine the viability of pressurization as a primary sewage treatment process.

Municipal sewage samples were pressurized at 40 psig for one hour with an excess of oxygen. An air compressor and a steel drum were used for sample pressurization. A non-pressurized control sample was maintained. After pressurization, the samples were fed into separate model activated sludge reactors. Biodegradability of both types of effluent was measured by determining their five day biochemical oxygen demands …

Textile Conservation: Deterioration Of Materials, Gayle Corah

Theses

None provided.

Sunshine Outpost, Nez Smith

Theses

"Sunshine Outpost" by Nez Smith presents a comprehensive thesis integrating historical, cultural, and conceptual perspectives on mental health care with the proposal for a community-based mental health center in North Hollywood, California. Rooted in the author's academic journey and personal commitment to community service, the document explores the evolution of mental health treatment, from ancient spiritual interpretations to modern-day community psychiatry. It highlights key developments such as moral treatment in the 19th century, the rise and fall of state institutions, and the legislative reforms of the 20th century, including the Short-Doyle Act and the Lanterman-Petris-Short Act in California.

The proposed …

Sharpness Ratings Of A Complete Imaging System, David Blanchard

Theses

In a complete imaging system, consisting of a camera and a camera lens, four black and white films, an enlarger, a print made from each film and a number of observers, the resultant images were judged subjectively. The system was also evaluated by four acutance models. When the acutance ratings were compared with the sharpness ratings there was not a significant correlation between the two ratings. The author believes that there would be a better correlation between the two ratings if the acutance models were used under the same conditiobs and the same constants as they were formulated under.

Finite Element Analysis And Program For Stokes Fluid Flow, Jeffrey Steele

Theses

The theory and computer program for finite element analysis of Stokes (creeping) fluid flow is presented. The element is an eight node, two dimensional isoparametric quadrillateral. The element is formulated directly from the Stokes equations of motion, a special case of the Navier-Stokes equations where inertia terms are dropped, using the method of weighted residuals with Galerkin's criterion applied. Velocities in two directions are solved for at all eight nodes while pressure is solved simultaneously at the four corner nodes only. Several test cases have been run with the program. Very good accuracy was achieved in modeling velocity profiles for …

Interaction Of Bromide And Organic Antifoggants In Development, Miriam Decastro, Kim Eisenberg

Theses

Various levels of bromide and an organic antifoggant, benzotriazole, were combined in a developer and investigated to determine if an interaction existed. Both nitrogen burst agitation and viscous development were used. It was found that benzotriazole is such a strong antifoggant that interaction occurs only at low density levels, and the influence of benzotriazole increases with development time.

The Question Of Style In Daguerreotype And Calotype Portraits By Antoine Claudet, Linda Vance Sevey

Theses

Not provided.

Structured Spacial Concepts, James Veatch

Theses

Not provided.

A Digital Signal Processing System Developed For The Optimal Use Of High Density Magnetic Storage Media, Victor Hernandez

Theses

High density data recording has traditionally been an essential factor in the development of communication and transmission systems. However, recently more sophisticated applications, including video recording, have necessitated refinements of this technology. This study concentrates on the signal processing techniques used to inhance the packing density of stored data. A comparison of the spectral mapping characteristics of different codes illustrates that the need for equalization can be eliminated and that significant bandwidth reduction can be achieved. Secondly, consideration is given to the deleterious effects of flutter, its associated effects on high density data recording, and the constraints imposed on the …

Quantitative Analysis Of Phenidone And Derivatives In Photographic Developing Solutions, Charles Augello

Theses

Spectrophotometric analysis and visual titration methods have been applied to the determination of Phenidone, its 4-methyl and 4, 4-dimsthyl derivatives, in photographic developers. The visual titration method is modified to allow for variation due to operator technique. Spectrophotometric methods are utilized for the identification of the Phenidone derivative in the Kodak process E-6 first developer. The derivative is believed to be Dimezome at 0.3 g/l.

The Quantitative Identification Of E-6 Chemical Processing Errors, Peter Buck, Donald Betz

Theses

This thesis contains descriptions of current methods of identifying chemical processing errors, followed by a description of a proposed method for quantitatively identifying chemical processing errors. The goal of this research is to determine the relationships between chemical deviations in the first developer of Kodak Color Reversal Process E-6 and the resulting changes in the sensitometric parameters of Kodak film type Ektachrome 64 Professional (Daylight). These relationships are presented in graphical form in a section of this thesis entitled "Results and Conclusions".

A Technique For Calculating Atmospheric Scattering And Attenuation Effects Of Aerial Photographic Imagery From Totally Airborne Acquired Data, A.J. Szydlik

Theses

Image degradation of color aerial photography due to atmospheric effects is spectrometrically evaluated as a function of air column depth for the purpose of defining corrective terms for the conditions under which the particular imagery was acquired. The theoretical development illustrates how these terms may be used to 'subtract out' the atmospheric effects of back-scatter and attenuation from the imagery. The technique suggests that true spectral information of ground objects can be calculated despite the presence of atmospheric effects during aerial photo graphic data collection. To determine the validity of the technique, the totally airborne method results are compared to …