Digital Commons Network^™

Simulation Of A Microprocessor Controlled Drill Press, Arun J. Ayyagari

Theses

The concept of flexible manufacturing systems has ushered new dimensions into machine tool design. The power of this new technique is that a high degree of flexibility in a machine tool can be easily achieved by developing a software based control system as against conventional hard wired systems in existence.

To demonstrate this point, a microprocessor based control system is developed, in this thesis, to control the automated drill press. The Motorola MC6808 8-bit microprocessor is chosen as an example.

The microprocessor first evaluates the optimum cutting parameters for the given cutter size, work material and operation. It then uses …

Computational Method For Solving The Kinematics Of Mechanisms Using Matrix Methods, Rajat Pardal

Theses

This thesis deals with the computational methods for kinematics of mechanisms using matrix methods. The method is particularly suited to the complex mechanism problems for which hand calculations are difficult. The thesis first reviews the matrix methods on which the program IMP is based. A computer program developed by Ve Tung using the same theory is enhanced in this thesis. By using this revised program, comparison between the non-linear algebraic approach and the matrix methods developed in this thesis has been made by the help of suitable examples. Further, it has been proved that the Integrated Mechanisms Program does not …

Design Of Code Division Multiple Access Systems, Nakrendrakumar Patel

Theses

The intent of the work "Design of Code Division Multiple Access systems (CDMA) " is to consider different aspects of design with their effect on system performance. The generation of binary shift register sequences, that is maximal length sequences, with their properties are presented. From these maximal length sequences the Gold codes are obtained which are the most suitable approximately orthogonal codes for designing CDMA systems. These are discussed with their specific crosscorrelation properties. An extensive discussion is given of the difficult problem of synchronization, thatis bothacquisitionandtracking of pseudonoise sequences. Different synchronizing methods are discussed along with their relative performance. …

Computerized Work Measurement System, Vrajesh Shah

Theses

This thesis is concerned with the application of computerized work measurement to improve productivity and efficiency of production workers. In doing so, the techniques of MOST (Maynard Operation Sequence Technique) is studied to determine its appropriateness for industrial use. The advantages and disadvantages of the system are studied as to its value to large and small industries.

Development Of Dynamic Analysis Program Mini-Dymac, Shang-Rou Shien

Theses

The computer program DYMAC developed by B. Paul automatically generates and numerically integrates the equations of motion of closed loop multi-body mechanical systems. The theory behind this program is Larange's form of d'Alembert's principle. However, it is not an easy task for the beginners to understand this program completely. If there is a simplified version of the program, it will be of great help for those people to understand the essential organization of the program.

Using the same theory of DYMAC, computer program MINI-DYMAC is developed in this thesis and hoped to serve as an educational version of DYMAC. For …

On Natural Frequency Of The Stiffened Hvac Ducts, Jin-Lian Ha

Theses

This thesis employs ANSYS program to calculate the natural frequency of a stiffened HVAC duct and to investigate the affect of these stiffeners to the values of the natural frequency.

Investigation through this thesis shows that increases in the number of transverse stiffeners mould increase the natural frequency of the HVAC duct and the installation of the axial stiffener mould also increase the duct natural frequency.

The Impact Of Fms On Batch Production Processes, Jan-Sheau Ho

Theses

A Flexible Manufacturing System (FMS) is an integrated system of combining metalcutting and other processes with materials handling under computer control. With computer control, FMS is capable of processing a variety of different types of workpieces simultaneously. FMS is an approach towards a balancing of high output on the one hand and great flexibility on the other hand. FMS stands as a new technology to improve the productivity of mid-volume, mid-variety production; therefore the manufacturing world will soon feel the impact of FMS.

This thesis attempts to specify what FMS is and how it works, the influence of FMS on …

Optimization Of Reactive Ionized Cluster Beam (R-Icb) Technique For Deposition Of Gan Films, Veronica S. Kyriacou

Theses

The deposition of GaN film onto glass substrate, using the Reactive - Ionized Cluster Beam deposition technique was studied. The creation of clusters is dictated by various parameters such as the vacuum pressure inside and outside the crucible, the crucible temperature, and the nozzle diameter of the crucible. Optimization of these parameters was experimentally studied, and deposition of gallium films on glass substrates was tried as a first step.

The direct heating method was used at first to get the 1100¬1300°C crucible temperature which was required for the creation of gallium clusters. Although different tungsten wire diameters and different number …

Optimum Design Of Structures Subject To Buckling Constraints, Thomas G. Looby

Theses

This thesis describes the optimal design of bar type planar truss structures subject to stress and buckling constraints. All of the structures considered are modeled using the direct stiffness finite element approach. A mathematical programming method incorporating a feasible directions routine is utilized to develop least weight designs for these conditions. The existing structural optimization programme CADOS which has successfully solved stress and deflection problems for this class of structures is adapted herein to treat local stability constraints based on Euler bucking criteria.In addition the optimization routine is modified to more effectively treat, infeasible starting designs. These modifications were tested …

The Interfacing Between The A/D Converter, Buffer Memory And Hx-40 Microcomputer, Yu-Hwa Chu

Theses

The data acquisition system which includes A/D converter, buffer memory, and address generator, is to digitize the signal for the computer use. The special feature of this system is the computer controlled digitizing rate over a range from 35K to 0.

The interfacing between Motorola 68000 E.C.B. to H.P. 64000 Development System is the simple example for data communication. How to make the protocal to be compatible is the main point. H.P. 64000 is treated as a host computer because it has the capability for data management and large memory for storing data.

Effects Of Adhesion On The Active Pressure Exerted On A Retaining Wall, Thomas G. Gallagher

Theses

This paper investigated the effect of adhesion on the active pressure behind a retaining wall. No equation existed to solve for the active pressure for a sloped backfill that also takes into consideration cohesive and adhesive forces on a failure wedge. The trial—wedge solution(Culmann method) considers these parameters, but since it is a trial and error method it takes up too much time to solve. A shorter solution is desirable. An equation for the active pressure in terms of ρ(angle between horizontal and failure plane) was derived. A closed form solution for earth pressure was developed by setting the derivative …

Analysis And Evaluation Of The Developments In The Use Of Coal, Farid Najib Elkheshen

Theses

This thesis is a survey and evaluation of the developments in the use of coal. It deals with the social, economic, physical, and biological impacts of such a shift. It examines the complete coal system, from extraction to combustion, including the key steps and policy initiatives. The United States, with 6% of the world's population, consumes about 33% of its commerical energy supply - while the available reserve coal is about 80% of total energy in the United States, with coal use representing only 17%, oil and gas about 78% at present.

Technologies under development that might reduce costs, increase …

Identification Of Material Constants Of Human Bone Using Finite Element Method For Micropolar Elasticity, Sajid Mannan Sayed

Theses

Bone differs from most engineering materials in the composition of its structure. The classical theory of elasticity fails to correctly predict the stress concentration effects in bones with precracked or notched surfaces, and can be applied only to those materials which exhibit more homogeneity and isotropicity than bone. Therefore, generalized continuum theories, which have addditional degrees of freedom, must be used to determine the stress concentration effects in human bone, especially in regions of high strain gradient, such as a hole or an interface.

In this thesis, efforts have been made to identify the material constants of human bone since …

Investigation Into The Feasibility Of Burning Hazardous Waste In Utility Boilers, Reuben Steinberg

Theses

Disposal of hazardous waste is of major concern in recent years in this country. Declining availability of landfills together with more stringent State and Federal regulations has necessitated the need to consider alternative means of hazardous waste disposal. It was suggested that burning hazardous wastes in presently operating utility boilers might be beneficial to the utilities and offer a solution to this social problem.

This thesis investigates the feasibility of this alternative given the technical, economic and regulatory considerations involved and discusses the findings of adopting this technology for hazardous waste disposal.

Based on the results of this study it …

Graphic Display Of Robot Kinematics, Ramamurthy Vishwanathan

Theses

This thesis uses the HOUIE.BYLI graphics software package to simulate the kinematics of a six degree of freedom, MAKER I robot. The coordinate frames for the various links of the robot were established. The kinematic equations for the manipulator were developed snd solved using the techniques of inverse geometric transformations and transformations of objects in 3D space. A program was also developed to calculate the joint variables of the manipulator given any point on, and the orientation of, an object. These variable values are used to direct the robot end effector to the given point. This can be seen in …

Similitude Analysis Of Model Experiments Of Piles Driven To Rock, George Nicou Georghoudes

Theses

This thesis investigates the similitude requirements for the Dynamic Pile Driving Apparatus in the New Jersey Institute of Technology Laboratory. The apparatus is being used to perform model tests to study bearing stratum fracturing caused by driving pile groups to weak rock.

Two approaches were used to establish similitude between the model and actual field conditions. The first approach utilizes dimensional analysis to develop a relationship between the energy delivered to the rock mass by the pile and the unit length. The second approach proposes a procedure to establish an empirical relationship between the threshold energy to fracture the rock …

Teacher Stress And Time Management, Sandra Sunderland

Theses

This study was conducted to determine the relationship between time management skills and levels of stress in teachers.

The sample used consisted of all the teachers i n grades K-12 in the Wentzville R-IV School District. The number of surveys returned totaled 113 which was 58%.

The respondents completed two self-administered questionnaires. One was a Time Management Survey and the other was the Wilson Stress Profile for Teachers. Each survey contained 36 items which were scored on a Likert-type scale of 1 to 5.

The Pearson r correlation between the two sets of scores was .623 which was found to …

Comparative Learning Effectiveness In Reading And Language Skills As Taught By Success In Reading And Writing Vs,, Jean M. Becker

Theses

The project presented herein was designed to measure in a quantitative way the comparative effectiveness of teaching and learning reading and Language skills in groups taught by the basal reading series and by the Success in Reading and Writing.

A discussion of the rather substantially different approaches in these two teaching methods is presented. The basal reading series is a highly structured, specifically ordered teaching system involving detailed material in the teacher's manual, student readers and workbooks at each level of instruction, Grades K- 6.

The Success in Reading and Writing program, on the other hand , while quite structured …

A Presentation Of The Self-Organizing Paradigm; Speculation On Its Impact On Health, Gail Dahl Schomaker

Theses

This thesis explores the emergence of a new paradigm in understanding health, grounded in the scientific principles of self-organization and systems theory. Gail Dahl Schomaker presents a comprehensive examination of the shift from the traditional Newtonian mechanical worldview to the dynamic, process-oriented perspective rooted in the theory of dissipative structures as formulated by Ilya Prigogine. Central to this new worldview is the conceptualization of living organisms, including humans, as open systems that maintain and increase order through continual interaction with their environment.

The paper is structured to introduce key theoretical models from systems theory, cybernetics, and holistic health, progressively building …

Management Of Personnel Systems, James P. Ward

Theses

The "Management of Personnel Systems" course (BA-332), taught at Lindenwood College in Spring 1986, provides a comprehensive framework for understanding key components in personnel and industrial relations. Designed for graduate-level students, the course emphasizes both theoretical foundations and practical applications of human resource management. Its core objective is to equip students with the philosophy, skills, and experiential learning necessary to operate effectively within the personnel function of organizations.

The syllabus covers a broad spectrum of topics, including job analysis and design, staffing and recruitment, equal employment opportunity, performance appraisal systems, compensation and benefits, labor relations, collective bargaining, organizational development, safety …

A Review Of Personnel Policies And Procedures Developed For St. Charles County In 1984, Richard L. Balicki

Theses

This paper will discuss the development, design and formulation of personnel policies and procedures for St. Charles County in 1984. At the time the process of development started, the county was without an approved personnel policies and procedures system and was concerned about a possible federal audit that could result in their losing federal funds because of the lack of formal policies.

In order to develop a system that would be used by the various county offices, input was sought from elected and appointed officials as well as other levels of county employees. The success and failure of this method …

A Market Study On The Viability Of Small Launch Firms, Allen George Dyer

Theses

As the United States only launch vehicle program NASA'~ Space Shuttle forced the shutdown of conventional launch vehicle operations . A system whose profitability depended on frequent use, but which, instead , incurred numerous launch delays, the Shuttle soon could not cover the cost of itself much less turn an profit. The French Ariane, albeit a simpler launch vehicle, soon successfully competed with the Shuttle for payloads.

The Reagan Administration, by various supportive measures, encouraged the market entrance of commercial launch firms . The Shuttle and Ariane, however, subsidized by their respective governments , set prices so artificially low that …

Voices Production, Elsa Burroughs Fritts

Theses

Unavailable.

Home-Tutoring Programs With Special Education Students: Four Descriptive Studies, Susan M. Broom

Theses

The purpose of this study was to determine the positive and negative effects of home-tutoring on four handicapped students and their families, and to ascertain if a home-tutoring program would be positively accepted by the students and their families. The descriptive studies were conducted using students of different handicaps and age levels.

During an interview prior to the involvement program, parents were asked about the amount of time presently spent studying with the child, the family members involved with studying, the familiarity of the parents with the IEP goals, and their feelings about involvement. At the post-treatment interview, the same …

Emerson E & S Division's Management Technique: An Exploratory Survey Into The Benefits Of An Integrated Business Environment, Timothy Fitzsimmons Carr

Theses

Over the past few years, integrated business environments have become popular in the defense industry . An integrated business environment is a method used to unify all management and engineering activities required for a company to perform on a contract. The follow i ng research provides an introduction to the concepts of managing technological business through streamlining the efforts of all human and non-human resources involved, and secondarily , an exploratory survey into some of the important benefits and open issues that are being explored and debated among users, developers and maintainers of test program sets.

Generally Accepted Accounting Principles (Gaap) And Small Business, Christine Slaughter

Theses

Christine Slaughter’s 1986 thesis explores the challenges small and medium-sized businesses face when adhering to Generally Accepted Accounting Principles (GAAP). The study emphasizes how certain accounting standards, while designed for broad applicability, often impose unnecessary burdens on smaller enterprises due to their complexity and cost. Slaughter examines the efforts of key organizations, including the American Institute of Certified Public Accountants (AICPA) and the Financial Accounting Standards Board (FASB), to address this issue. Her literature review highlights the concept of “accounting standards overload,” where traditional GAAP requirements may not be cost-effective or relevant for smaller entities. The thesis analyzes debates surrounding …

A Suggested Personal And Family Care Curriculum For The Vocational Skills Centers Of The Special School District Of St. Louis County, Ruth Elaine Hellweg

Theses

A Suggested Personal and Family Care Curriculum for the Vocational Skills Centers of the Special School District of St. Louis County is designed to provide an open entrance-open exit approach to developing skills for coping with specific activities of daily living. It is intended for use with handicapped students of all categories including BD, LD, MR, SH, and orthopedically handicapped and could be used with slow learners in any area. It is a task analyzed curriculum, written with measurable behavioral objectives to facilitate IEP formulation. Areas covered are grooming and hygiene, nutrition, food preparation, first aid, home health, safety, substance …

Mark Madoff's Healure: The Director's Role In A Work-In-Progress, David W. Hoover

Theses

Unavailable.

Marketing Customer Service Within The Information Movement And Management Industry, Mark Jones

Theses

The goal of this project is to determine what characteristics of the service firms are considered critical to success of vendors within the information movement and management industry.

The first task undertaken was to determine a definition for the information movement and management industry and which firms were major competitors within the industry . The size of the industry in terms of employees and revenues was then estimated. Some of the characteristics of the major competitors were then expanded.

The next activity involved the determination of what factors the information movement and management market members used to select a vendor …

A Utilitarian Approach To Spelling, Peggy Jean Laws Korane

Theses

Traditionally, most spelling curricula includes the routine of introduction, practice, and testing of a weekly spelling lesson. This mundane repetition need not become a nemesis. The following spelling curriculum is a utilitarian approach to a spelling curriculum for the future. With this utilitarian approach, it can be made to enhance other work being performed in the classroom, making all experiences valuable in meaning other than learning a group of predetermined words chosen at random.

This utilitarian spelling program has been created because of a need to enhance legitimate meaning in the study of spelling. Past experiences have determined that students …