Digital Commons Network^™

A Three-Dimensional Kinematic Model Of The Human Knee, Wayne Ke-Wung Li

Theses

This thesis describes two kinematic models of human knee which may be used to study the motion of the knee and the forces in the ligaments of the knee. In one model, the ligaments are simulated by rigid links connected to links representing the articulating bones at the centroids of the areas of insertion of the ligaments. The condylar higher pair connections are simulated by equivalent linkages connected by resolutes. In an advanced model, the rigid ligament links are replaced by springs.

The IMP procedure, a powerful kinematic linkage analysis method, is employed to study the motion and forces in …

An Equilibrium Theory Of The Ph-Parametric Pump, Charles Omotayo Kerobo

Theses

Parametric pumping, both batch and continuous, and cycling zone adsorption are theoretically scrutinized for various operating conditions by using the concept of equilibrium stages. The model system is Haemoglobin-Albumin-CM sepharose, a physical system in which a local equilibrium between liquid and sorbent in the layers of the separating medium in the column is characterized. For the batch process, the steady-state concentrations in both top and bottom reservoirs are found to be independent of the number of equilibrium stages, provided that a = 1 (i.e., number of transfer steps/number of stages).. For continuous parapump process, separation is enhanced with decreasing top …

Minimization Of Unwanted X-Ray Exposures On Conventional Photographic Films By Developer Modification, Michael L. Rudolph

Theses

Experiments were done to reduce the influence of unwanted X-ray exposures on Kodak Plus-X film. Variations of surface developer components showed no favorable results. The concentration of KBr was varied up to 10 grams per liter with again, no favorable results. The incorperation of benzitriazole decreased base plus fog from values of .81 to .56 with a significant decrease in speed. Phenyl mercaptotetrazole was extreamly effective in decreasing both base plus fog and speed.

Determining The Modulation Transfer Function Of A Lens-Film Combination Using The Diffraction Effects Of A Coherent Imaging System, Mark Washburn

Theses

This study will present a simple, quick, and inexpensive way to producing sinusoidal test targets, which can then be used in measuring the image quality of a photographic system by way of a coherent system. The sinusoidal test targets will be produced from a series of bar targets using Fourier Optics, and a comparison study will be made between measuring MTF with a laser and a microdensitometer. A defocused target series will also be produced to note the change in MTF of the photographic system. The results indicate that sinusoidal test targets can be made quickly and inexpensively, and then …

May I Have Your Attention Please?, Priscilla Malone

Theses

None provided.

Computer-Aided Graphic Design, Donald Harbison

Theses

None provided.

The Correlation Of Hammett Substituent And Brownstein Solvent Constants With Photochromic Properties Of Triarylmethane Dye Leucocyanides, Robert Bayley

Theses

Five triarylmethane leucocyanides were synthesized from their parent dyes, and a photochromic test apparatus was designed and fabricated. The leucocyanides were tested for sensitivity and fade time in six solvents. The data was found to correlate well with Hammett substituent constants and with Brownstein solvent coefficients with certain exceptions.

On The Analysis Of The Timoshenko Beam Theory With And Without Internal Damping, Chinubhai Doshi

Theses

The Timoshenko beam equation in terms of variable 'wB' is derived where 'wB’ is the deflection due to the bending of a beam. The equation is used to analyze an infinite beam loaded with (i) a concentrated transverse load and (ii) an impulse. It is also shown that the rotatory damping in the equation eliminates the increasing amplitude in the propagation of the bending moment when an impulse is applied to an infinite beam. Also the general procedure for the anlysis of a non-homogeneous equation is explained.

Readability Determination Using Superimposed Random Noise Patterns, Michael Dennison

Theses

A readability gauge was constructed which objectively gauges the readability of printed matter. In the past such gauges have been produced using photographically created noise. In this study a gauge was constructed using noise generated by a computer. This gauge was evaluated and compared with a gauge produced using the photographic technique of noise generation. The computer generated gauge proved to be as good as the photographic gauge at detecting differences in legibility of printed type. It was also found that the only two causes of variability in the legibility samples used were letter size and letter contrast. Using only …

Evaluation Of Turbine Blade Root Damping, Curtis Beck

Theses

A test program has been conducted to measure the vibration damping of three designs of steam turbine blades. These blades were tested in their root attachments, sectioned from retired rotors. Blade loading was accomplished in a new type of blade damping test rig and damping was evaluated in the lowest tangential and axial blade modes. The test environment was room temperature air. The damping rig concept and development is presented in detail as well as results of an intensive test program. The blade designs are designated as Types A, B, and C, where Types A and B were of a …

Theories And Experiments For Determination Of Nonsteady Loads On Turbomachine Blades, James F. Crofoot

Theses

This thesis collates the state of the art for flow induced excitation in a turbomachine stage under subsonic incompressible flow conditions. Theoretical developments are considered first, beginning with the vortex theories of Kemp and Sears, Henderson, Horlock and Holmes. Actuator disk analyses of Whitehead, Henderson and Horlock, and Horlock, Greitzer and Henderson are then considered followed by field theories of Osborne, Warner and Steele. Computer programs based on these theories are described and detailed input/output instructions are given. Results of these theories are compared and the state of the art for theoretical prediction of nonsteady blade loading is discussed. It …

Limnological Observations Of Sugar Creek, Lincoln County, Missouri, Joann Bull

Theses

Not available.

Shape, Douglas Bull

Theses

None provided.

Effect Of Concentration And Ph On Parametric Pumping Separations, Tsu-Kun S. Hsieh

Theses

The technique of parametric pumping represents a new and valuable development in the separation science of proteins. Many conventional protein separation are often processed batchwise. However, parametric pumping offers the possibility of continuous processing; the continuous process provides both the advantages of decreasing the processing time and of minimizing degradation.

Preliminary step testing experiments were conducted to study the equilibrium of protein between the stationary and mobile phase of the sephadex ion exchanger.

It was the purpose of this research to study the feasibility of operating a semi-continuous parametric pump with a sephadex ion exchanger for the separation of a …

Instrumental Music Guide: Grades 5-9, Joan Joy Coerver

Theses

Not available.

Learning Disabilities And Remediation, Laverne Hoerchler

Theses

Unavailable.

Procedures And Techniques To Identify And Teach The Ld Child In The Regular Classroom, Linda S. Bauwens

Theses

This handbook is to be used by teachers and parents as an introduction to understanding and helping learning disabled children . The handbook is divided into two sections . Part I is intended for the teacher who has an earnest desire to meet the individual needs of her l earning disabled students through the use of various media and teaching strategies. Part I will first of all familiarize the teacher and parent s with the terminology that is essential for communication involving the LD child , The l earning deficits are categorized under two channel abilities for ease in clarification …

Optical Line Width Measurement Using Spatial Filtering, Suzanne Weaver

Theses

The measurement of line widths optically allows fast, easy non-contact measurements and finds application in both research and development areas, as well as the production environments There exists presently a. need to increase the measurement accuracy of the width of small lines in the under 10 to 20 micrometer region. As accuracy may be achieved by calibration, there is interest in reducing the measurement variability. One technique of reducing variability, that of using a coherent microscope system that allows spatial filtering of the image of the line being measured, was breadboarded using high contrast etched chromium on glass lines, and …

Cold Emulsion Polyvinyl Bindability Criteria, James Stuart Rich

Theses

The purpose of this study is to evaluate new types of materials and technologies in the fast-changing bindery industry. An optimum binding method (OBM) is being determined by using different brands of cold emulsion polyvinyl acetate, different adhesive, binding methods, spine preparation, and papers. Testing is performed with a combination of materials and technologies to determine the actual binding strength and performance of adhesives. Results of the tests were analyzed statistically by Analysis of Variance (ANOVA), graphing, percent of change and ranking of values to find the optimum. The results of this study show some relationships of the factors, adhesives, …

Math Games: A Teaching Tool For Primary Math Skills, Carolyn J. Newcomb

Theses

Games as a teaching tool have been found to enhance learning, motivate students, provide immediate feedback and develop social skills . Through the use of games high student interest is developed by active learning, revitalizing the educational program.

Teacher made games are developed to reinforce the primary (grades one through three) mat skills . Eight major company's textbooks were used to compile the skills taught. Games were developed for each of the basic skills using ideas from books, original ideas, children's interests and suggestions .

Included for each game is a rationale, materials needed to construct the game, directions for …

A Curriculum Proposal For The Teaching Of Art For The 7th Grade, Peggy Keim

Theses

Unavailable.

Interimage Effects And The Mtf Of A Color Reversal Film, Joel Panning

Theses

Interimage effects have long been recognized as a factor in the reproduction of color. Reversal materials are no exception and exhibit interimage effects which have previously been revealed through techniques using END analysis. This study presents a method for revealing the presence of interimage effects in a reversal film's Modulation Transfer Function. Utilizing filtering techniques, two dyes of a three color transparency are eliminated from the final image by exposure and development. The remaining single dye image at a specified level is then compared to the corresponding layer and image in a colorimetrically specified neutral. The edge gradient analysis method …

The Effect Of Simultaneous Intensification On The Detective Quantum Efficiency, B. Desai

Theses

The effect of simultaneous intensification on the detective quantum efficiency of Kodak high definition aerial film type 3414 is investigated. The detective quantum efficiency or DQE varies from .00086 % to .115 % for the unintensified exposure over a log exposure range of 0.9, with the peak at .1223 %. This exposure has a base+fog density of 0.06. Different degrees of simultaneous intensification result in varying values of DQE. The exposure with simultaneous intensification which produced a base+fog of 0.24 gave the maximum sensitometric speed incease by a factor of 1.38 f/stops or 158 %. This exposure varies in DQE …

Determination Of The Relationship Between Information Capacity And Identification By Simulated Aerial Photography, Michael Jones

Theses

The relationship between information capacity and the ability of photointerpreters to identify vehicles in simulated aerial reconnaissance was investigated. An aerial scene lighting simulator was constructed and used in the production of a series of simulated aerial reconnaissance photographs of models of military tanks and trucks. The information capacity of these photos was varied by defocussing the taking camera and the simulated ground scale was varied by changing the taking camera reduction. Duplicate positives of these images were evaluated by trained military photointerpreters who determined the resolving power and attempted to identify the vehicles from a key provided. The resulting …

Mtf For Photographic Films By Parameter Estimation In The Space And Frequency Domains, James H. Clark

Theses

A new method for determining the modulation transfer function (MTF) for photographic films is described. The MTF and corresponding line spread function are approximated by carefully chosen models which are uniquely specified by a few parametric constants. By estimating the parameters in space and frequency simultaneously, the interactions between the two domains result in improved estimates over those provided by either domain alone. A computer algorithm has been written to determine the parameter constants that define the best-fit model for the emulsion MTF.

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 …

The Slow Settling Of A Sphere In A Viscous Fluid In The Proximity Of A Corner, Joseph Kisutcza

Theses

Experimental settling velocities for three different sizes of Delrin spheres in Ucon lubricant were determined at 20.2 degrees Celsius in order to confirm the validity of a theoretically derived equation for the settling of a sphere in the proximity of a corner. The experiments were conducted in a wedge shaped column with a circular sector base, filled with the viscous fluid, where the angle of the wedge was varied for experimental purposes. The distance from the wedge apex to the particle was also changed for the different runs.

The experimental data gave a good approximation of the values evaluated by …

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, …

Theoretical Guide To Laboratory Management, Leonard F. Petrosky

Theses

Theoretical Guide to Laboratory Management by Leonard F. Petrosky provides a comprehensive manual for newly appointed laboratory managers. It explores critical responsibilities in medical laboratory settings, highlighting the transition of laboratory managers into dynamic middle-management roles. Key areas include budgeting, inventory management, and quality control, with a focus on strategies for maintaining laboratory efficiency and profitability within budget constraints.

The guide also emphasizes the importance of safety protocols, proper staff selection, and ongoing education to ensure a high-functioning laboratory. Practical tools, like flow charts, are recommended to streamline complex processes and enhance communication across management levels. Quality control emerges as …

Determination Of Unknown Photographic Processing Solutions Through Buffer Curve Analysis, Richard Winslow

Theses

The determination of photographic processing solutions through buffer curve analysis was investigated to determine its advantages, limitations, and general usefulness. A microprocessor controlled titration system was set up to perform up to 16 unassisted titrations and record the data on a floppy disk system at a speed five times faster than the speed of manual titrations. The ingredients are not detectable by this analysis if their concentrations are much less than 1/10th the normality of the ingredient with the largest concentration that is detectable by this analysis. There is linearity between the concentration of a single ingredient solution and the …