Digital Commons Network^™

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.

Integrating Children's Literature Into The Teaching Of Multicultural Education, Carolyn Vaccaro-Sipes

Theses

A multicultural curriculum reflects and is sensitive to the ethnic diversity among the peoples of various cultures. In this type of curriculum ethnic content regarding diverse ethnic groups is incorporated into the area of social studies through the use of children's literature for the fifth grade. Four goals are considered: (1) developing an understanding of cultural diversity within the 1 society, (2) apply thinking and decision making processes to ethnic issues through activities, (3) developing skills needed for participating in different ethnic groups, for resolving conflicts and for taking action to improve current conditions, and (4) develop attitudes, values, and …

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 …

A Mathematical Model Of Halftone Reproduction Including The Effects Of Optical And Chemical Spreading, Cort Demmert

Theses

A system which predicts halftone reproduction curves for film-developer combinations, based on the combined optical and chemical modulation transfer function for that combination, has been tested using a 100 cycle/inch contact line screen. Density in fine detail is predicted and used to determine fractional area data. Predicted fractional area data was found to lie within 95 percent confidence intervals of experimental fractional area data.

Sounds In Clay: A Study Of Vibrating Ceramic Sculpture, Ward Hartenstein

Theses

The purpose of this thesis is to derive a synthesis of the sculptural aspects of form and structure and the physical principles of musical acoustics. vibrating systems: Specifically I wish to deal with three types of free-end vibrating bars; fixed-end vibrating bars; and three-dimensional vibrating bodies, each of which possesses a unique set of technical constraints within which the aesthetic requirements of form and structure may be addressed. My objective is to conduct research leading to the design and construction of a group of objects which, through the involvement and participation of the viewer, communicate both a visual and an …

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.

Moment Method Solution Of The Time-Dependent Transport Equation To Describe The Scattering Of Gaussian Plane Wave Pulses By A Forest, Nack Yang Cho

Theses

The time dependent transport equation is used to study the transmission of periodic pulses through a forest. The forest is assumed to occupy a half-space region, to be statistically homogeneous and to scatter energy isotropically A periodic sequence of Gaussian plane wave pulses is assumed to enter the forest normally from free space. The transport equation is solved by the moment method using triangular expansion functions. Numerical results indicate the dependence of the incoherent intensity on penetration depth, observation angle, albedo and pulse repetition rate.

On The Analysis And Design Of Clamped Rectangular Plate With Partial Load, Yacin Saaid Jaboury

Theses

In this Thesis, maximum deflection and bending moments of a partially loaded clamped rectangular plate are studied. The loading is uniformly applied to a retangular area proportional to the shape.

Navier's Solutions on partially loaded simply supported rectangular plate is superimposed with edge moments to give the clamped boundry condition.

Solutions of maximum deflection and bending moments are derived in Double Series form. A Fortran program is employed in obtaining the numerical results. When the partially loaded area approaches zero it becomes a centrally loaded case; and when loading area to plate area ratio approaches unity it becomes a uniformly …

Numerical Solution Of Navier-Stokes Equation By Finite Element Method, Kuan-Tzong Lee

Theses

A finite element method for solving the entrance flow in a parallel-plate channal at low Reynolds number has been studied. Two methods of formulation for both incompressible viscous and inviscid fluid flows were developed. The first uses stream function and potential function as field variables while the second uses velocity and pressure. Both formulations presented here ultilized variational principle and weighted residual method. The numerical example was solved by constrained variational principle with penalty functions in conjunction with the Newton-Raphson method. A 9-node quadratic quadrilateral element was used in this example. Numerical results for entrance flow problem were obtained for …

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.

Blood Pressure Signal Simulation In An Artificial Circulation System, Shaw-Jyh Shin

Theses

The major objective of this thesis is to produce a desired pressure waveform in an artifical circulation system by using a Z-80 microcomputer controlled stepper motor. This will simulate the desired blood pressure waveform in the human body and can be used for clinical application.

A microcomputer simulation was used for setting up an electrical circuit model to represent the artificial circulation system as well as for finding out the relationship between motor speed (piston displacement) and pressure waveform.

Using this techniques, a desired pressure waveform which represents the blood pressure waveform in the human body can be obtained.

Steady State Heat Transfer From Two Concentric Rings Of Spheres, Kevin J. Fitzpatrick

Theses

The method of reflections was used to solve the steady state heat transfer problem for two concentric rings of spheres, all at equal surface temperature. The method results in a mathematical model for the three dimensional temperature profiles around the array of spheres. This model is used to develop an expression for heat transfer rate from the array. This work has resulted in a solution for dilute systems since no ring to ring interaction term was found.

Possible Approaches For The Application Of Decision Support Systems Within The Nonprofit Organization, Robert Eugene Noe

Theses

This thesis, titled Approaches for the Application of Decision Support Systems in Nonprofit Organizations, explores how high-tech solutions, specifically Decision Support Systems (DSS), can be utilized by nonprofits to enhance their operational efficiency and strategic planning. Authored by Robert Eugene Noe, Sr., the work emphasizes the potential for DSS, particularly the Interactive Financial Planning System (IFPS), to offer data-driven decision-making processes tailored for nonprofit needs.

The study examines the evolution of decision-making technologies and their historical underutilization in nonprofit sectors due to prohibitive costs and limited resources. IFPS is presented as a tool that enables scenario modeling, budgeting, and …

The Installation Of A Standard Cost System In A Small Manufacturing Environment, Joseph M. Taylor

Theses

This culminating project by Joseph M. Taylor presents a detailed case study of the installation of a standard cost system in a small manufacturing environment, specifically at Hofman Manufacturing, Inc.—a pseudonym for a real St. Louis-based hardware company. The project explores the integration of management accounting principles with a computerized management information system, aiming to improve internal planning and control processes. Prior to the system's implementation, Hofman Mfg. lacked an internal accounting department, relying instead on external public accountants. The absence of timely and accurate cost data hindered effective pricing and decision-making, particularly amid a volatile economic environment.

Through direct …

Controlling Market Variability By The Restructuring Of The Investment Portfolio, Dennis G. Welker

Theses

The major concern in a financial transaction is to maximize profit while minimizing the possibilities of capital loss . The first step necessary to obtain either of these goals is to enhance the financial investor's knowledge of the industry and specific company's history, prospects, and management intentions for the future. Secondly, the present and future economic conditions should be analyzed and their effect on how the respective investment reacts in these types of environments should be determined. After this knowledge has been obtained the investor may have enough supportive information to quantify the components of risk and make his investment …

Error Detection For Data Communication Systems, John Biancamano

Theses

A description of the problems encountered in the data communications field and the various solutions can be found in a number of diverse, and often theoretical sources. My intention in writing this thesis is to bring together, in a practical and understandable manner, the theory and the application of a method of error detection used extensively in data communication systems known as the Cyclic Redundancy Check (CRC).

To provide some background on the subject, a description of a data communication system is presented, and the possible sources of error are explored in some detail. Data transmission formats are described, and …

Distributed Computation In Computer Networks, Ching-Liang You

Theses

None provided

An Artificial Intelligence Approach To The Game Of Backgammon, Chang-Chung Yang

Theses

We have designed a backgammon program to play intelligent games. It can make good decisions of the moves of its checkers. It also can learn from its past experience. This thesis describes how this program works. This thesis is divided into seven chapters. Chapter one gives some background in Artificial Intelligence and the backgammon game. Chapter two summarizes the history of the last 30 years of computer game playing by some well-known researchers in A.I. field. Chapter three "briefly describes the overview of this backgammon pro gram, including the basic playing, input, move verification, output, game starting and terminating, and …

Investigation Of The Radiometric Integrity Of The Theogram After Its Raster Scan Lines Are Removed Through Spatial Filtration, Joan Allamena

Theses

Thermograms are records of density levels which correspond to apparent temperatures. The process of thermographic imaging is based on Plank's law which relates temperature to radiance. It begins with the collection of quantum energy which is then converted to voltage. The voltage powers a light source to expose the recording material of the thermogram. Atmospheric effects must also be taken into consideration. The relationship which takes all variables into account can be found in appendix A.

Cast: A System For Color Animation And Scene Transformation, Frederick Schebor

Theses

CAST is an acronym for Color Animation and Scene Transformation. The objective of this system is to give non-computing personnel the ability to create still and animated pictures with the aid of a digital computer. Data generation and animation language are two key components that comprise an animation system. The CAST system incorporates an interactive dialogue to assist the user in generating and/or editing three dimensional scenes, and an animation language which uses a simple script like syntax to describe parallel motion. The third key component of an animation system is the display. The CAST system incorporates hidden surface elimination …

A Study Of Comparable Identifiably Predictions Of Some Resolving Power Targets By Fourier Spectra Considerations, James Greene

Theses

This report documents a study conducted to examine the correlation between identification thresholds and difference spectra of some resolving power target characters. The experiment included the USAF Tri-bar target, the RIT Alpha-numeric Resolving Power Target, and a set of targets called the Granger Modified Tri-bar targets. Assuming that target identification is a filtering process and primarily a function of its frequency spectrum, this study began with a prediction of targets that would have equal identification thresholds from difference spectra considerations. Target images were viewed at various sizes to confirm/refute the original hypothesis. The USAF targets demonstrated adequate control of experimental …

Borinquen, Reynaldo I. Santiago Morales

Theses

Not Included

Electroplating And Electroforming As An Artists' Medium, R Lisa Toser

Theses

Not Included

The Computer And The Secondary School English Curriculum, Marjorie Schmieder

Theses

Not provided.

Parsing Natural Language, Leonard E. Wilcox

Theses

People have long been intrigued by the possibility of using a computer to "understand" natural language. Most researchers attempting to solve this problem have begun their efforts by trying to have the computer recognize the underlying syntactic form (the parse tree) of the sentence. This thesis presents an overview of the history of syntactic parsing of natural language, and it compares the major methods that have been used. Linguistically, two recent grammars are described: transformational grammar and systemic grammar. Computationally, three parsing strategies are described and compared: top-down parsing, bottom-up parsing, and a combination of both of these methods. Several …

An Investigation Of Film And Contact Screen Effects In The Halftone Dot System, Michelle Bushnell

Theses

A model was tested which, given a certain film and contact screen, can predict halftone modulation transfer functions. A relationship was derived which, given the halftone MTF, can predict the halftone dot gradient for the system.

An Active Filter Design Program (Theory And Application), Louis Gabello

Theses

This thesis deals with the design of filters in the frequency domain. The intention of the thesis is to present an overview of the concepts of filter design along with two significant developments: a comprehensive filter design computer program and the theoretical development of an Nth order elliptic filter design procedure. The overview is presented in a fashion which accents the filter design process. The topics discussed include defining the attenuation requirements, normalization, determining the poles and zeros, denormalization and implementation. For each of these topics the text ad dresses the fundamental filter types (low pass through band stop). Within …

Nonlinear Analysis Of Shear Walls And Shear Panels By Finite Element Method, Erhan Atay

Theses

The objective of this work was to determine the feasibility of applying the Finite Element Method to Nonlinear Analyses of Shear Walls and Shear Panels.

Various existing methods are reviewed and discussed.

These studies determined that the application of Finite Element Method to Nonlinear Analysis of Shear Walls and Shear Panels is being misused in many cases but is very practical and promising where justified. However more studies are needed for the manner of modeling to be used to connect the wall to beam and slab elements that frame into that wall. To model the coupled beams as plane stress …

Informational Needs Within A Decision Making Model For Curriculum Development, Sandra J. Rowell

Theses

This thesis analyzes informational needs within a decision-making model for curriculum development, focusing on the Francis Howell School District's shift from decentralized to centralized curriculum in the 1970s. The study uses Lipham's decision-making model, which involves recognizing a problem, gathering information, considering alternatives, making a choice, and evaluating the outcome.

The author, a member of the planning committee, provided information and suggestions for the study, including criteria for curriculum guides, sample guides from other districts, and a review of goals and objectives. The thesis also explores different value bases and curriculum theories, emphasizing the importance of understanding these values in …

On The Use Of Cognitive Principles And The Personalized System Of Instruction In Computer Science Education, James Bradley

Theses

None provided.