Digital Commons Network^™

Computer Simulation Of The Respiratory System, Bruce Diner

Theses

The respiratory system was simulated utilizing a series of three models, each more complex than the previous. The first model simulated the respiratory system as a two compartment model driven by carbon dioxide concentration. The second model, also a two compartment model, simulated periodic breathing while the third model is a three compartment model and simulates acid-base balance disturbances.

In this study, the effects of hyperthyroidism and respiratory center depression on respiration premeasured utilizing the models to obtain data and then compare the results to known physiologic data.

Managing And Controlling The Manufacturing Operations, Harish Doshi

Theses

No abstract provided.

Management Of The Interface Between Product Design And Production, Adam Fischer

Theses

The goal of this thesis was to identify some of the many obstacles which tend to, in some way or manner, delay the timely, satisfactory progression of new developments from becoming new profit items. These obstacles which are numerous are the results of personal observation plus research of many books and periodicals. The identification of the obstacles will hopefully result in their obviation. Notable accomplishments along these lines tend to:

1. Reduce the loss of opportunity to gain an appreciable market share.

2. Reduce investment/overhead cost by earlier recovery of cost through earlier marketing effort.

3. Reduce continuing engineering costs …

Finite Element Analysis Of The Femoral Head, Ghandikota Ramamurthy

Theses

Femoral component loosening and Prosthetic stem fractures have renewed interest in conservative alternatives to conventional total hip replacements. One such alternative is the concept of surface replacement. The objective in this study is a finite element analysis of a femoral surface replacement cup with Particular attention given to the interfacial stresses. An axisymmetric model with a grid of two-dimensional isoparametric elements is generated. This study utilizes an adaptive model so as to include the effect of bone remodeling in response to stress. The stiffness is considered to be linearly proportional to the stress in the femoral head and neck. Isotropic …

Failure Surface For L-Shaped Reinforced Concrete Short Columns, Mon-Chen Liu

Theses

Combined bending and axial compression for L-shaped reinforced concrete short columns is a common problem. But the present ACI Building Code (ACI 318-77), handbooks and texbooks pay no attention to this problem. A numerical analysis and computer program developed by Hsu fora reinforced concrete member subject to biaxial bending and axial load has been used Using this computer program, the interaction diagrams and failure surface were developed for L-shaped members under combined bending and axial compression. A comparison between theoretical and experimental results was included to examine the validity of failure surface.

Analysis And Tests [Of] L-Shaped Reinforced Concrete Column Under Combined Biaxial Bending And Axial Compression, Alaedin Majlesi

Theses

A total of five tests on biaxially loaded column specimens were conducted to investigate the complete behavior of load-deformation characteristics from zero load until failure. The specimens were tested under horizontal position with 60 ton hydrolic jack. Pin end was used for both ends to obtain higher accuracy of plotting curves.

Two specimens were tested with dial gages to obtain load-deflection curves and the other three specimens were tested with demec and strain gages to obtain load strain and moment-curvature curves. The strain gages were measured by weston bridge and deme-gages were measured by mechanical dial gage.

The above moment-curvature …

An Analysis For The Blade Coating Of Ctbn Modified Epoxy Adhesive, Jeng-Li Liang

Theses

A resin metering criterion has been developed for processing the prepregs of CTBN-EPOXY resin in which the resin content can be controlled within close tolerances. This criterion was obtained by numerically simulating the flow of CTBN-EPDXY resin in the blade-type metering device at room temperature. The Newtonion case of CTBN-EPOXY resin was selected for the study to avoid dealing with more complicated flow equations. A methodology of using the penalty function/finite element formulation was developed to solve the steady state Navior-Stokes equation.

The rheological data show that the CTBN-EPOXY resin is a non-Newtonion fluid at low shear rate. On the …

Organizing To Manage Future Information Technologies, John Patrick Paczkowski

Theses

The area of information technology has undergone dramatic changes over the past ten years, and the rate of change is expected to continue to accelerate through the 1980's and beyond. The newly developing information systems are providing organizations with numerous options for enhancing the quality of managerial decision making, speeding communications and improving the efficiency and effectiveness of administrative/office processes. Unfortnately, many organizations are discovering that they are unable to effectively assimilate and utilize the technology effectively. Chief executives are finding that the traditional structures for managing Data Processing, Telecommunications, and office systems are often fragmented, lack the technical expertise …

Investigation Of The Behavior Of Ferromagnetic Liquids In Magnetic Fields, Avinash Narcinva Velingker

Theses

Ferromagnetic liquids are superparamagnetic in character possessing paramagnetic as well as an almost loose ferromagnetic behavior. The magnetization response has been treated by classical mathematical techniques and computer methods for different excitation functions.

Also, experimental work has been carried out to study the gyromagnetic phenomenon exhibited by ferric fluids when subjected to external magnetic fields. The experimental set-up consists of a solenoid wound around a glass tube channel through which ferrofluid can be circulated at different velocities. The experimental results revealed that saturation occurs at certain level as the field intensity is increased and prior to this point, resonance takes …

An Assessment Of Job Attitudes Held By Hourly Workers At A Food Processing Plant, Charles J. Sheahan

Theses

This study applied Vroom's instrumentality-valence model to an assessment of the overall job attitude of hourly workers at a food processing plant. The specific job factors relating to the formation of overall job attitude are described and the managerial implications of the results are discussed. A short discussion of the relationship of these employees' attitudes to Herzberg's motivation-hygiene theory is also presented.

The results of the study indicate a moderate degree of job satisfaction based on Vroom's model. Additionally, the correlations of specific instrumentality to specific valence give a strong indication that the subjects value rewards they perceive as attainable, …

The Operational Utility Of The Walton-Mckersie Attitudinal Structuring Model In Collective Bargaining, Donald Warren

Theses

This work is an heuristic inquiry into behavioral change theory designed for application to labor/management interaction in collective bargaining. The theory itself was postulated by Richard E. Walton and Robert B. McKersie in their book A Behavioral Theory Of Labor Negotiations. The principles of their theory are highly axiomatic and their importance and validity can only be recognized through applied empirical analyses that demonstrate or refute its concept.

The aspect of the theory which is the focal point of this research pertains to the structuring and restructuring of attitudes and attendant relationships resulting from the collective bargaining process. The objective …

Variations, An Analysis, Janet Lauroesch

Theses

None provided.

Book Design: A Study In Communicating Information Within The Field Of Music, Leith A. Harbold

Theses

Not Included

Nightstands, Charles Costantino

Theses

None provided.

A Limited Comparison Of Ultraviolet Curing And Convection Drying On Paper Permanence, Nancy Bittner

Theses

Archivists, conservators and librarians are concerned with paper permanence. Tests have shown that paper permanence is affected by light (especially ultra violet), temperature and humidity changes, acidity, in sects and rodents, and by general use. Environmental damages are often insidious. The objective of this study is to find whether ultraviolet curing and evaporative drying as experienced in the printing industry would affect paper permanence. Glen G. Gray's procedure for finding the reaction rate (the rate at which chemical reactions are completed) of paper is followed. This method relies on the fact that a chemical reaction occurs at speeds which depend …

Effect Of Plate Surface Characteristics On Image Reproduction In Electrostatic Planographic Platemaking, Sung Jae Lee

Theses

Four different types of surfaces of aluminum plates; 1) brush grained, 2) chemically grained, 3) brush grained and anodized, and 4) electrochemical ly grained and anodized substrates coated with polyvinyl oxazol, an organic photoconductor were studied. The experiments were divided into two parts. The first part concerned with the photoelectric characteristics of the various surfaces, and the second part was involved with image quality relative to photoelectric properties of different substrates. The characteristics of each of the surfaces was briefly discussed. Photoelectric properties such as 1) photosensitivity, 2) spectral response, 3) surface acceptance potential, 4) dark decay, 5) light decay, …

Landscape/Mindscape: A Partial Inventory Of Influences, Janelle Delicata

Theses

I will produce a series of woven works exploring Nature and Landscape as it affects my life and perceptions. Various techniques will be used in the final pieces.

Dream Images, John Nasif Samaha

Theses

Please seek out the real purpose of this report in the photographs. It is with these images that I have tried to communicate what I have thought, felt, and dreamt. My work is experimental in technique. The images are created as fantasies juxtaposed with the tradition of design, figure, line, planes of dimension, and overall composition. By using color materials in a non-conventional way, I am exploring the range of photographic possibilities with color, form, drama, emotion, mystery, and life. Photography functions beautifully for these narrative elements because of its ability to transform a real event into something mysterious, removed …

An Application Of Multi-Dimensional Scaling To The Re-Examination Of Preferred Tone Reproduction, David J. Porter

Theses

Black and white prints were produced of several scenes that varied in both negative contrast and negative exposure. Subjects rated the various prints by categories based on their own personal understanding of what an excellent print was. The boundaries of the categories were found and used to determine the preferred tone reproduction characteristics. Individual differences were also scaled with the use of a proximity measure determined from the categorical data. The preferred contrast (1.46 +0.24) was significantly higher than the contrast that has been found to be preferred in earlier studies. The application of this study to more general situations …

A Proposed Study Of The Value Of An Exercise And Nutrition Program For Obese Children In A Public School Setting, Barbara Mcdougal

Theses

This proposed study addresses the question: Will a daily exercise and nutrition program help increase the level of fitness for children determined to be obese?

A plan of classifying students as being obese is included as well as a recommended program of exercise and nutrition. The program consists of student participation for 24 weeks for 30 minutes daily in addition to their regular physical education class.

Obese students would be divided into two groups. One group would continue their normal daily schedule and the second group would participate in the exercise and nutrition program.

Because this author is enrolled in …

A Study Of Lindenwood College Alumni: Donor Vs. Non-Donor, Arnold M. Lewis Jr.

Theses

Unavailable.

A Science Curriculum Incorporating Process Skill Activities Into Content-Oriented Science Programs, Holly Richards

Theses

This curriculum of science activities was developed to be used with a content-oriented text in the intermediate grades of elementary school. It was specifically designed to give students additional practice in using the process skills in the various units of science, The author felt the need for this curriculum after teaching both content- and process-oriented programs, as each left much to be desired when taught in isolation.

This researcher believes that children learn best by doing, and that science is an ideal area in which to develop the skills that produce independent learners and critical thinkers. However, as research shows, …

Variations In Image Magnification Due To Mask Repositioning In A 1:1 Projection Printer, Sarah M. Dolan

Theses

A Perkin-Elmer Micralign 230 Exposure Tool was used in an analysis of magnification variation. In the analvsis, all elements were kept constant except for the repositioning of the mask between sets of wafers that were exposed. Repositioning was initiated by removal and replacement of the mask from the exposure tool and the mask holder. Overlay measurements were then taken from the exposed wafers. These measurements were used to calculate the amount of magnification error of the images found on the wafers. These magnification values verified the hypothesis that repositioning of the mask has a significant effect on magnification values.

Determining Techniques And Alternatives For Pupil Recruitment For Enrollment In The Head Start Program, Nancy Vanzant

Theses

This report examines strategies for improving recruitment and enrollment in Head Start programs serving low-income families in St. Louis. Head Start is a federally funded initiative designed to provide early childhood education, health services, and family support to children from disadvantaged backgrounds. Despite the program’s benefits, many eligible families remain unenrolled, highlighting a persistent gap between available resources and community participation.

The study identifies multiple barriers to enrollment, including limited awareness of Head Start, transportation difficulties, and misconceptions about eligibility. Families often perceive Head Start as a program for others rather than as an opportunity for their own children, while …

Paired Comparisons And Personal Compensation: A Computer-Aided Approach, H. D. Simpkin

Theses

H.D. Simpkin's Paired Comparisons and Personnel Compensation: A Computer-Aided Approach explores the use of the paired comparison method in employee performance evaluation and salary determination. The study examines the challenges human resource managers face in linking salary increases with performance assessments, emphasizing the limitations of traditional ranking and rating systems. The paired comparison method, which systematically compares employees against each other in pairs, is proposed as a more reliable and objective alternative.

The thesis details a study conducted with laboratory technicians, where supervisors used both conventional ranking methods and a computerized paired comparison system. Statistical analysis demonstrated a high correlation …

The Adventures Of Rose And Jody, Chapter 17: Jody Does Her Thesis, Jody Williams

Theses

None provided.

Deregulation Of The Telecommunications Industry And The Bell System Divestiture - Impact On The Universal Service Concept, Edward H. Hancock

Theses

The Communications Act of 1934 established the principle that our nation' s future telecommunications policy was to be structured on the concept of "Universal Service", i.e. that telephone service is essential, and as such , should be made available and affordable for all . Deregulation of the telecornmunications industry and the soon to be accomplished Bell System divestiture will have a significant adverse impact on the universal service concept. The rationale for this premise is presented as follows . First, a theoretical analysis is made of the changes in the regulated utility revenue requirement which will result from deregulation and …

Bending Vibrations Of A Cantilever Beam On An Eccentric Rotating Disc, Yousry S. Aboelnaga

Theses

The differential equation of motion for the C.G. line of a vibrating cantilever beam which is mounted on an eccentric rotating disc is derived. Exact solutions in terms of hypergeometric functions of this fourth order differential equation with variable coefficients are obtained by making several mild assumptions. These solutions include a large class of vibrational modes.

The primary idea leading to the exact solutions is the factorization of the fourth order differential operator into a pair of commuting second order operators.

Computer Aided Analysis Of Electroencephalographic Waveforms, Edward Tadeusz Polkowski

Theses

An approach to analysis of EEG waveforms is described. The procedure utilizes a PDP -11 computer to perform a Fast Fourier Transform on four channels of data simultaneously. The transforms are done in real time and. the results are plotted in a manner which allows the operator to easily determine the major background activity and to check for left-right symmetries in brain waves. Patient data is used to verify the computer output against actual clinical diagnoses.

The Effects Of Impurities In Papain On Triarylmethane Photochromism, Jon H. Austin

Theses

The effects of the enzyme papain on triarylmethane photochromism were investigated. The interaction between papain solutions and triarylmethane dyes was measured using difference spectroscopy and relative equilibrium constants were calculated. The effects of papain on Malachite Green photochromic solutions were also measured. Both crude and commercially available purified papain were tested. Crude papain bleached triarylmethane dyes and reduced fatigue in triarylmethane photochromic solutions. Purified papain did not bleach the dyes and did not have a significant effect on fatigue in photochromic solutions. It was not as soluble in the alcohol based solvent as the crude enzyme was. It is believed …