Digital Commons Network^™

Dual Token Ring Lan Performance, Pratap S. Pasupuleti

Theses

A simulation model to analyze the performance of a dual token ring LAN is developed. The performance measures throughput, average packet delay and maximum delay per packet are obtained. System performance is analyzed for different loads, number of stations, and packet lengths. The performances of token ring LANs with a conventional structure and a dual ring structure are compared for both uniform packet sizes and a case with mixed packet sizes. In the uniform packet size case, the dual ring delays were lower at equivalent throughput because of propagation delay effects. In the mixed packet size case the maximum delays …

The Application Of Feedback And Control System Theory To Organizational Modeling, Thomas Miklos Tamas

Theses

A review of the literature showed that relatively little attention has been given to the application of feedback and control systems to management. Since a major function of management is control, scientific management might offer assistance in the form of a more quantitative approach to management control. This thesis suggests one might accomplish this through the application of feedback and control systems.

The application of feedback and control theory to management systems is relatively new, however, literature has shown a trend towards the application of electrical engineering theory to non-engineering topics [Khranovich76]. There has also been some research in the …

Fast Packet Switching For B-Isdn With Neural Net Control, Ajit K. Chaudhuri

Theses

The concept of integrated network where both the voice packet and data packet are delt with, started taking shape since 1970. Later, Users? demand for communication of data, voice, file, facsimile, image, videotext, videophone, videomovie has also been felt. All these services need bit rate of transmission in the order of 10, even 100 Mbits. An economical way to transmit this higher bit rate, with flexibility of bandwidth, is to treat voice/video in the form of packets and transmit those packets in real time. Studies of this kind of communication is carried out in Broadband ISDN ( BISDN). At this …

Direct Schottky Injection Image Sensors, Subramanyam V. Ayyagari

Theses

This thesis describes the analysis and simulations of Direct Schottky Injection (DSI) imagers which have 100% fill factor. Frame transfer (FT) and interline transfer (IT) DSI imager structures have been investigated. Theoretical Poisson solution for the PT and P-NP FT-DSI structures is presented, which closely agrees with simulation results. Simulation for frame transfer FT-DSI imagers has been done in SUPREM III since 1-D effects are more dominant. Single carrier transit time for both the structures were estimated from the electric fields.

Simulations of IT-DSI structures was done using PISCES llb, to get the local electric fields, which define the directionality …

Multiresolution Techniques : Laplacian Pyramid Coding And Its Comparison With Subband Coding, Danmei Chang

Theses

The multiresolution pyramid and related structures have been developed as intermediate representations between the purely frequency domain and purely spatial domain. In this thesis. we discuss two important pyramid structures which are often used in multiresolution representation: Laplacian pyramid and subband coding.

Laplacian pyramid. a typical pyramid structure, is studied in detail. By means of software implementation. we obtain a comprehensive understanding of its features and applications in image representation and data compression. Several modifications of pyramid structure are used to compress the data dynamic range, reduce the computational complexity and improve performance. Performance of the conventional Laplacian pyramid and …

A Machine Vision System With Remote Host, Chieyeon Jason Chen

Theses

The modem plays an important role in data communication using the Public Swiched Telephone Network. In this thesis, the modem function is merged into a low cost machine vision system based on the Motorola 68HC11. Evalation Board The system comprises the intelligent machine vision con- troller and a remotely located host computer, such as an IBM-PC. It, supports extra long distance communication capability so that the controller and the host can be anywhere in the world where then is a telephone line. Because of the limit of a 2100 bps modem, soft ware data compression is implemented here to save …

Ct Fan Beam Reconstruction With A Non-Stationary Axis-Of-Rotation, Joseph A. Concepcion

Theses

One important aspect for reconstructing an image using Computed Tomography (CT) is that the axis-of-rotation must pivot at the same point on the reconstruction plane as the x-ray source and CT scanner assembly rotates around the imaged object. This pivot point is used as a reference point for backprojecting pixel values to their proper coordinates. Therefore, reconstructing an image with a non-stationary axis-of-rotation would backproject pixel values to wrong coordinate points, since the reference point is non-stationary for every projection angle.

A convolution filtered backprojection algorithm has been derived for correcting images that were acquired with a non-stationary axis-of-rotation using …

Novel Way Of Sub-Carrier Coherent Detection And Clock Recovery In Fiber-Optic Communications, Narayan Gehlot

Theses

We experimentally demonstrate a novel concept for recovery of a Sub-Carrier and Timing Clock in fiber-optic communication systems using a Wavelength Division Multiplexing technique. The idea is to send a low radio frequency (RF) as a reference pilot from the transmitter to the receiver on a separate laser using the principle of Wavelength Division Multiplexing (WDM). This low frequency signal is taken to be a subharmonic of the subcarrier used to carry information and intensity modulate another laser. Such approach will be expected to generate at the receiver a local oscillator in high coherence with the subcarrier.

We show that …

Some Aspects Of Integration Of Classification, Computer Aided Design, Process Planning, And Scheduling Of Flexible Manufacturing Systems, Suresh Godavari

Theses

This work deals with the role, problems and solution technique for integration of Computer Assisted Design, Classification, Process Planning, and Scheduling for a Flexible Manufacturing System. A lark spectrum of rotational and prismatic parts are considered.

A Knowledge-based rough classification and coding system [C&C] has been developed for coding similar parts using a Group Technology [GT] technique. In this module VP-EXPERT and DBase III Plus are used as expert system and database respectively. This module interfaces with a database for the retrieval and selection process.

The code obtained from the C&C system is the basis for the succeeding phases. The …

The Bandwidth Allocation Of Atm Through Genetic Algorithm, Hong Pan

Theses

In this thesis, we develop an optimization method based on Genetic Algorithm to achieve the bandwidth allocation of ATM network. In Broadband Integrated Service Digital Network (BISDN), the Asynchronous Transfer Model (ATM) is already adopted as the transfer standard by CCITT. ATM is a high-bandwidth, low-delay, fast-packet switching and multiplexing technique. Using ATM technique, we can flexibly reconfigure the network and reassign the bandwidth to meet the requirement of all types of services. As an effective optimization method, Genetic Algorithm(GA) is applied to implement the bandwidth allocation of ATM. GA is a class of search algorithm based on the mechanics …

Comparative Study Of Prediction Gain Based On Neural Network Architecture, Prashant M. Shah

Theses

This thesis describes the Neural Network approach to design predictor using Delta and Generalized Delta Rule. The predictor is designed by supervised training based on the typical sequence of pixel values. Neural Network is used to find the coefficients of the predictor. Both 1-D and 2-D scheme of the pixels as well as linear and non-linear correlations are used to find the coefficients by training. Different combinations of pixels are used to find the "best" combination among the order of the predictor.

N-Cross Coupled Phase Locked Loops, Joseph C. Aboukhalil

Theses

Interference cancelation has been mainly performed using arrays, in an important issue in communication both array and spatial cancelation and time domain approach were used. In array applications, depth of cancelation may dependent on the interferences to background power ratio and their spatial distributions. Also, array cancelers are inadequate when the signals are less than an array beamwidth apart. The latter was dealt with using supperesolution and eigenanalysis methods. Different time domain methods were used in the past. Among them what is termed Cross-Coupled PEL. It is an arrangement of two PLL each one is locked on and tracking one …

Experimental Study Of The Internal Loads In A Cardan Joint, Johannes K. Waal De

Theses

A recent investigation by Fischer and Freudenstein questioned the validity of the negligible axial forces assumption in the static force analysis of Cardan Joints. The purpose of this paper is to experimentally assess this assumption for the dynamic case.

To this end an experiment was constructed to determine the axial forces acting on the intermediate revolute joints of a Cardan joint. A four-square test arrangement was prepared such that shaft intersection angle, shaft torque, and shaft speed could be varied. Strain gages were applied to the "arms" of the joint to measure the resulting strains due to the forces along …

Integrated Digital Speech System With Pc, Zhen Zhu

Theses

A PC-based real-time digital speech processing system is designed. Speech synthesis, analysis, storage and retrieval are implemented in the system with intelligent telephone functions. Speech data are stored on floppy disk and easy to retrieve. Though floppy disk is slow in speed, real-time processing is achieved with low bit rate coding. The computer gets speech data from a digital speech processing unit or send data to it through a synchronous seiial communication port. The analog input of digital speech processing unit can be selected from the telephone line or the microphone, and output of the digital speech processing unit can …

Metamorphosis, Ching-Yuan Chang

Theses

None provided.

Food Marketing Distribution: A Pilot Study Of Ardmore Farms, Michele Ann Musella

Theses

Ardmore Farms is one product group that in part comprises the Food-service Division of Quaker Oats Company. They produce portion-controlled, USDA approved citrus and fruit juices. The juice is produced by one plant located in Deland, Florida. It is then shipped throughout the United States via a fleet of more than 120 refrigerated trucks. in fiscal year 1990 Ardmore experienced a financial crunch due to a freeze in Florida. To counteract the negative financial effects of the freeze, Ardmore hastily raised their orices. This aggravated the food-service operators resulting in a "fallout" of Ardmore's customer base. Also many regional juice …

A Descriptive Study On Trekking Attributes In Nepal Using Importance-Performance Analysis, Pasi Ryhanen

Theses

Since the opening of its doors to the outside world, Nepal has seen a large growth in tourist arrivals. One of the fast growing tourist markets attracted to Nepal is the trekking vacationers. In order for the suppliers and decision makers of the trekking product to be able to meet the demand of users it is important that they are able to target the development in the appropriate direction. A lack of communication among the components of the tourism industry has resulted in a lack of cooperation. The purpose of this study is to develop an instrument that enhances communication …

A Case Study Of Formal Training Of The Front Desk Agent In Rochester/Monroe County, New York, Nicole Marisa Harley

Theses

The hospitality industry is a billion dollar industry based upon customer service. Measure of quality service is an intangible concept based upon the perception of the customer. It is the industry's front-line employee that has the responsibility of fulfilling the perceived image of service the guest has envisioned. In 1991, industries throughout the U.S. budgeted 43.2 billion dollars to be spent on formal training of its employees. The dollar commitment made to training exemplifies a companies commitment to its employees and customers. The formal training of the front desk agent bares the same commitment. In this study is was assumed …

The Way To Better Media Relations, Bruce Prator Epps

Theses

Unavailable.

Options And Limits In A Woman's World, Teresa A. Davis

Theses

This is a study of women who are ascribed the role of mother, but who would also like to pursue a satisfying career. These women experience multiple demands when trying to fulfill these multiple roles. The study focused on how women integrate motherhood and employment. The methodology employed in this study was qualitative. Information was solicited through the use of informal personal interviews conducted by the researcher. A single hour interview was conducted with each participant in the research project. The sample consisted of 10 full - time working mothers who volunteered to participate in the project.

The purpose of …

Venture Stores: A Case Of Self-Inflicted Labor Shortages, Eugene J. Vargo

Theses

This thesis will focus on the corporate personnel problems that are expected to occur from the babyboom retirement and the babybust.

Research shows that in the last few years major corporations have felt the pinch of regional labor shortages. Facing an eminent labor shortage caused by the babybust, employers are looking into various ways of improving worker productivity and company performance.

The Bureau of Labor Statistics and the Census are forcasting that by the year 2000 the United States will see a significant change in the workforce. The median age will rise. There will be less 16-22 year olds entering …

Employee Turnover: Housekeeping Department Of Rochester Hotels, Monica Nyamusa Tembi

Theses

This study was undertaken in order to ascertain the high rate of turnover and to find out the causes of turnover in the housekeeping department of Rochester hotels. The survey population was made up of housekeeping employees from 17 hotels. Information for the study was from responses to a four page questionnaire that was designed and later approved by the Rochester Hotel and Motel Association. Data gathered was computed using the Statistical Package for the Social Sciences, (SPSS) . Statistics generated showed the response rates to each question. Responses were later used to do cross tabulations in order to find …

A Relationship Between Birth-Order Position And The Incidence Of Eating Disorders, Mary Weber

Theses

Eating disorders, bulimia, anorexia, and compulsive eating are a rising concern for the female population as they currently affect women in almost epidemic proportions. Research has enabled us to categorize like-characteristics among those clients who are affected as well as, to develop with some consistency, portraits of the family systems in which these patients develop their symptoms.

A key factor in the family structure is the role that each sibling assumes, which is often directly influenced by the ordinal position of their birth in relationship to their siblings. Research has also identified a categorical profile of characteristics associated with each …

A Comparison Of Leadership Skills Of Managers Of High Performing Fast Food Units Vs. Managers Of Low Performing Fast Food Units, Jack W. Goodner

Theses

This Culminating Project will examine the difference in supervisory styles used by managers in high performing fast food units and those in low performing fast food units.

While management in its present form has existed only a brief time, countless attempts have been made to explain why some achieve good results and others poor results.

This study attempts to differentiate by demonstrating that managers of high performing units employ more appropriate supervisory styles than do those in low performing units.

In order to prove this assumption, responses were collected from ten fast food managers employed by Foodrnaker, Inc. (Jack-inthe- Box). …

The Impact Of Organizational Shape On The Intrinsic Job Satisfaction Of White-Collar Workers, Bernie L. Alexander

Theses

This thesis focuses on the study of job satisfaction and the impact of organizational shape on the intrinsic job satisfaction of white-collar workers.

Research has attributed the decline in white-collar job satisfaction to such things as over-complex organizational structures, broad spans-of-control and job specialization.

The purpose of the present study is to investigate the possibility that, within a corporate setting, there is a difference between the intrinsic job satisfaction of white- collar workers who are employed by flat, decentralized organizations and those who work for tall, centralized organizations. Specifically, it is hypothesized that white- collar workers of flat, decentralized organizations …

Body Image Dissatisfaction And Eating Behavior In Survivors Of Child Sex Abuse, Ellen S. Dorfman

Theses

A review of the literature suggests a relationship between child sexual abuse and the development of eating disorders in female subjects . Additionally, body image dissatisfaction and distortion are well documented among eating disordered individuals and women in general. This study found a relationship between body image dissatisfaction and some eating disordered behaviors . Women who are in out-patient therapy for treatment of child sexual abuse were surveyed. Secretiveness about the sexual abuse at the time of the abuse was compared to both body image dissatisfaction and eating disorder attitudes and behaviors . Secretiveness was significantly related to body image …

Tenant Participation In Management: A Model For Organizing Tenants In Public Housing Toward A Cooperative Home Ownership Program In St. Louis, James C. Robinson

Theses

This thesis will focus on tenant participation in the development of tenant management in St. Louis Missouri's public housing., why the home ownership program occurred, the federal government's plans to utilize tenant management corporations in public housing, to manage and covert to a home ownership program; and how tenant participation in managing public housing has improved the living conditions and the quality of their lives. Without tenant participation in managing and organizing a home ownership program there is little or no chance of the program being successful. Tenant's participation in management is the key ingredient to the successful turn around …

The Abstract Of The Lindenwood College Volunteer Survey, Glenda Dawn Raef Schaefer

Theses

Lindenwood College needed more volunteers to help in the alumni and development departments. When this project began in 1988, alumni volunteers helped with the phonathon, mailings, networking for fund raising, and scholarship fund raising, as well as planning the annual Alumni Reunion. There were many more tasks than volunteers. Those who were faithful to their duties often "burned out" in a short time. As an active alumna, I felt the need for more help. We knew there were alumni willing to help, but we did not know who they were. When the development staff person who was to have developed …

Adjusting Property Values For Power Lines: An Exploratory Study, Robert T. Hirst

Theses

For thirty years researchers warned of potential danger,3 oi electromagnetic fields ( EXF) near electrical power lines and substations. The Environmental Protection Agency is presently reviewing the research to date to see if a substantial health hazard from EMFs threaten public health.

The Appraiser studied two subdivisions built 1985- 87 in Brentwood, Tennessee to see if EMF publicity stigmatized 6 homes adjoining TVA transmission lines right of way (AT) by decreasing expected s ales price compared to 44 homes not adjoining right of way (NAT).

In this small sample of convenience (6 AT subjects), two sold before 1989 at a …

The Effects Of Spousal Career Status On The Decision To Offer Promotion, Gregory B. Holder

Theses

The purpose of this study was to investigate the possible relationship between the career status of a female employee's spouse and her promotability. Previous research has suggested managerial bias against dual-career marriages based on assumptions regarding geographic mobility and commitment to career (Rosen, Jerdee, and Prestwich, 1975; LeLouam and Decotiis, 1983). Expanding on this premise, 60 managers from a large, regional corporation were enlisted. Each manager was given a brief series of personnel decisions to rate on a four-point scale ranging from 1 (certain denial) to 4 (certain approval). One of these decisions concerned whether or not to offer a …