Digital Commons Network^™

A Comparison Between Revealed Preference (Rp) And Stated Preference (Sp) Based On Results Of Simulations, Qiuzi Chen

Theses

This research quantifies the potential biases resulted from two different data generation methods used in transportation modeling: Revealed Preference (RP) and Stated Preference (SP) techniques. Revealed Preference technique is the conventional approach to generate data. It relies on observed or reported data of actual behavior. Stated preference technique is a new data generation method. It creates transportation scenarios using hypothetical data. Conventional studies favor the use of revealed reference. However, full description of advantages and weaknesses of using revealed preference technique is not available in literature, neither point-to-point comparison between stated preference and revealed preference techniques. This research contributes to …

Economic And Monetary Union In Europe, Charalambos K. Demetriou

Theses

The plans for Economic and Monetary Union in Europe became difficult to achieve during the period 1992-1993. The convergence criteria set up in the Maastricht Treaty block the road towards unification. It is very complex to expect twelve governments with different shades of political colour and twelve states with different economic interests to compromise in such criteria (as inflation, government borrowing, exchange rate stability and interest rates) and eventually, speak with one voice at the end of this decade.

This current research provides significant modifications in The Maastricht Treaty , policy making, objectives, even changes in political behavior for better …

Removal Of Chlorinated Hydrocarbons From Water By Air Stripping And Solvent Sublation, Alpana Gami

Theses

Removal of trichloroethylene, monochlorobenzene and 1,3 dichlorobenzene from water by air stripping and solvent sublation into an organic phase was investigated. The sublation solvents used were paraffin oil and decyl alcohol. The rate of removal from water by solvent sublation and air stripping was highest for trichloroethylene, followed by chlorobenzene and finally 1,3 dichlorobenzene. For the three compounds, solvent sublation had the greatest advantage over air stripping in the reduction of emission of the compounds to the atmosphere. For the three compounds, the removal was enhanced at higher flowrate in both air stripping and solvent sublation. For the removal of …

Viscoelastic Effects On Parallel Flow Stability, Transition To Turbulence, And Turbulent Flow, Michael Garofalo

Theses

The classical two dimensional theory of stability of parallel flow is extended to viscoelastic fluids. How the elasticity of the fluid affects the point of stability and determines the point of transition to turbulence is analyzed. In addition the magnification of disturbances is elucidated. This study is based on a viscoelastic constitutive equation which has been successful in predicting the experimental trends of various unsteady high shear rate laminar flows. A viscoelastic stability equation which is an extension to the Orr-Sommerfeld equation for a Newtonian fluid is derived and solved for a flow between parallel plates superimposed by a two-dimensional …

The Cyberspace Workplace : An Argument And Design For The Virtual Office, Richard C. Jones

Theses

The Virtual Office has become a viable solution to the need for a changing workplace. Technology, design, and a redefinition of work have combined to create something entirely new. An office not of walls and doors but of electronic peripherals, networks, and global digital communication. This concept allows workers to be free from their physical surrounding to conduct work from remote locations or in some instances in a totally electronic world commonly referred to as Cyberspace. Through research, interviews, and problem solving the virtual office concept presented will redefine the use of space as we know it. These concepts will …

The Mobile Satellite Service (Mss) Systems For Global Personal Communications, Kiho Lee

Theses

A worldwide interest has arisen on personal communications via satellite systems. The recently proposed mobile satellite service(MSS) systems are categorized four areas: geostationary earth orbit(GEO) systems, medium earth orbit(MEO) systems, low earth orbit(LEO) systems, and highly elliptical orbit(HEO) systems. Most of the systems in each category are introduced and explained including some technical details. The communication links and orbital constellations of some systems are analyzed and compared with different categories, and with different systems. Some economical aspects of the systems are mentioned. The regulatory issues about frequency spectrum allocation, and the current technical trends in these systems are summarized.

Mechanical Behavior Of Polystyrene Foam Bead Lightweight Concrete, Hai-Ying Ni

Theses

This thesis is designed to investigate the effect of porosity on the mechanical properties (strength and modulus) of concrete, and to evaluate the effect of silica fume on the mechanical properties of the polystyrene foam bead lightweight concrete. In this research we made the lightweight concrete by using polystyrene foam beads as light weight aggregate and studied its mechanical properties in detail. Due to the near zero density and modulus of foam beads, we were able to consider it as "porosity". We could then control porosity in concrete by varying foam bead volume fraction.

In our experiments we used the …

Soft Decision Adaptive Multiuser Cdma Detector For Asynchronous Awgn Channels, Frank Viehofer

Theses

A multiuser detector in an asynchronous, additive white Gaussian noise, codedivision multipleaccess (CDMA) channel is proposed and analyzed. It employs a combination of a decorrelator and a nonlinear multiuser interference canceler that utilizes soft tentative decisions. The weights of the canceler are adaptively adjusted, in a manner that renders the knowledge of received signal energies and the use of training sequences unnecessary. The steady state error performance of the detector is obtained and found to be superior to the performance of the same detector that utilizes hard tentative decisions.

Wear And Friction Of Hylamer And Polyethylene Against Cobalt Chromium A Pin-On-Disc Study, Jerry D'Alessio, Ii

Theses

Understanding friction and wear of biomaterials is essential to the success of any prosthetic joint. A pin-on-disc wear tester is used to find the friction and wear of pins of one material on a coupon of medical grade cobalt chrome. In this experiment six pins of UHMWPe (ultra high molecular weight polyethylene) and six pins of Hylamer® from Du Pont Manufacturing were tested. Four separate runs were made. The tests were performed for ten million cycles, stopping every one to one and a half million cycles for data acquisition. Volumetric wear, wear rate, and coefficients of friction were measured. Both …

An Adaptive Asynchronous Cdma Receiver And Its Convergence Analysis, Lizhi Zhong

Theses

An adaptive CDMA receiver scheme assuming perfect synchronization has been generalized in this thesis to the asynchronous channel, a much more practical assumption of the real system. Similar formulas are derived and as its synchronous version, it is still near-far resistant and requires no knowldge [sic] of received signal amplitudes and training sequences. Thus, sophisticated high-precision power control and user power estimation are not necessary and the receiver is particularly useful in mobile communications since it can adjust itself adaptively to changes in the power of the users. Tile convergence and transient behavior of the receiver are also investigated and …

Wear Of Polyethylene And Hylamer On Cobalt-Chromium : A Knee Simulator Study, Alessandro F. Canonaco

Theses

Two tests were conducted to examine the wear characteristics of tibial bearings used in total knee replacement systems. Each test consisted of six A/P Glide Tibial Bearings each having a conical control arm. The plastic portion of the conical bearings were all made of UHMWPe. Each of these bearing systems was mounted onto a Co-Cr alloy tibial platform and Co-Cr alloy LCS (low contact stress) femoral component . These test samples were mounted onto the New Jersey Mark III Knee Simulator System. The simulator was configured to produce flexion and axial rotation to simulates normal gait. Each test ran at …

The Baltic States And Tourism Development, Ann-Christine Hellstrand

Theses

Not listed.

Developing Career Satisfaction For Culinarians Through The American Restaurant 2000 A.D., Paul Sorgule

Theses

Not listed.

An Examination Of Service Quality: An Internal Study, Andrea Wolak

Theses

Customer service has been the focus of companies for the past decade. In Rochester, New York, businesses large and small have demonstrated concern for service excellence. Quality of service is defined by the customer. For one Rochester company, this case study will set parameters to determine whether gaps are present between corporate client expectations and employee perception. Tabulated gaps can be identified and narrowed to secure the company as a stronger competitor of customer satisfaction.

General Managers And Four-Year Students Evaluate Attributes, Qualities, Competence And Skills For Hotel Management Entry-Level Positions: A Case Study, Po-Fen Chen

Theses

The issues of curriculum relevancy and attitudinal learning outcomes in preparing hospitality management students to meet industry needs are the focuses of this study. This study attempts to assess whether or not attitudes and values offour-year hospitality program students change as a result of the learning processes in their curricula. A 40 item questionnaire was developed and used to survey the three populations in the study; freshmen and seniors of a four-year hospitality management program and hotel general managers who have hired Co-op students and graduates from the program. The survey results were compared between the groups as follows: Freshmen …

Tourism, Transportation And Accomodation: Case Study Of Two Cities In Southern India, Garani Chitra

Theses

The problem investigated here is the characterization of tourism in the southern Indian cities of Bangalore and Mysore. To generate the characterization, inputs were obtained from three types of sources. These are tourists, hotel operators and tour operators in both cities. Separate questionnaires were prepared and administered to the three input sources. Twenty two questions were asked in the tourist questionnaire. The tour operator and hotel operator questionnaires contained twelve and nine questions respectively. Questions to tourists pertained to factors such as point of origin of tourists, purpose of visit, length of stay, etc. Questions to tour and hotel operators …

The Identification Of Work-Environment Factors Effecting Dysfunctional Employee Turnover At A Resort Property: A Case Study, Christopher Menna

Theses

The purpose of this study is to identify a list of work-environment factors present at a resort property that participant employees feel effect employee turnover, and consequently interfere with good customer service. This was accomplished through extensive in-depth interviews conducted with 28 systematically selected employees from all departments of the property studied. The interview schedule utilized was primarily unstructured to provide the respondents with the greatest latitude in expressing their impressions. The results of the interviews revealed specific patterns of responses relating only to the various departments of the participants. The results also revealed two general patterns of responses present …

Puerto Rico 2000: Building A New Future, Griselle Boria-Marcano

Theses

This study focuses on the identification of limiting conditions affecting the tourism industry in Puerto Rico. In order to provide a clear understanding of the tourism situation of the island, a broad outlook of the tourism performance is presented. It includes an economic background of Puerto Rico and the tourism activity, as well as a discussion of the areas involved and their problematic issues. The information gathered for this study was developed through personal interviews and primary data sources. While searching for problematic issues affecting the tourism industry, eight limits to growth were identified as most relevant: High Hotel Room …

A Model: An Organization That Fosters Internal Motivation, Sheila Barber

Theses

This thesis provides a model of an organization that can maintain a continuous level of employee internal motivation. It does this by comparing the current situation with a model of a new conceptualization. It then compares the current situation and the modeled perspective to decipher what gaps are preventing the model from being implemented. From here it defines action strategies that can be used to eliminate the gaps and make it a baseline to structure the model so that the tasks completed and the organization are able to enhance the members internal motivation. The model begins with motivated leaders and …

A Decision Making Environment The Healthcare Industry, Terry Ovenshire

Theses

This was a pilot study on the decision making environments in the health care industry. A critical incident questionnaire which was developed by Boone & Kilmann (1988) and later used by Janet Barnard (1992) in her research "Decision Environments of Small Firms" was adapted. The questionnaires were sent to 201 employees at the facility in the first sampling. A response of almost 50% was received, but the food service department was only represented by 3 respondents. It was decided that a second sampling would be sent to that department to assure a large enough set of respondents to use as …

The 1995 Corporate Travel Index In Taiwan, Mei-Hsiang Yu

Theses

With the growth of its economy. Taiwan has also become more of a business travel destination. In 1994, the Taiwan's government and the tourism industry have made great efforts in promoting the tourism trade. In addition, hotel capacity and airline accessibility into Taiwan have increased. These factors have generated new opportunities and competition in Taiwan's travel industry. Business travel is indeed a controllable expense, but efficient corporate travel management requires companies to do research in the marketplace, to negotiate effectively with travel suppliers, to plan their travel arrangements carefully, and to organize the payment reports and reimbursement. The Corporate Travel …

Creating A Favorable Sentiment: Allensworth, California, Myra Frances Burton

Theses

As the nineteenth century drew to a close, most Americans expressed optimism for the future. In the decades following the Civil War, the United States emerged as a burgeoning industrial nation, a nation filled with opportunity and promise. However, not all Americans shared this optimism. For African-Americans, the future would be remarkably similar to the past. From 1865-1877, AfricanAmericans enjoyed a new status in society. The thirteenth, fourteenth, and fifteenth amendments to the constitution conferred a measure of legal equality upon blacks, raising hopes of eventual social inclusion in American society. These hopes vanished in the wake of a new …

San Lucas: The History Of A California Cattle Town, Matthew James Gildersleeve

Theses

If one follows the Salinas River from its source in the mountains of Santa Barbara north to where it pours into the Monterey Bay, one comes across many settlements along its banks. Such a settlement is San Lucas. With a population of fewer than 500 and little industry the town has been left to wither away in sun baked South Monterey County. This had not always been the case, however, for San Lucas. Over one hundred years ago the settlement was paramount to Southern Monterey County. Once the hub of economic activity in this region, San Lucas boasted of many …

Hazard Recognition And Regulation : An Asbestos Chronology, Diane A. Colson

Theses

One hundred years after it was first mined, several uses of asbestos were banned in the United States. The latency period that typifies asbestos-related diseases was but one factor in the delayed recognition of asbestos as a health hazard. Many other factors delayed the initiation of practical measures to alleviate the hazards.

Controversies surrounding exposure to asbestos continue. Epidemiological studies have answered many questions, but many others are, and may remain, unanswered. Some of the controversies surrounding exposure to asbestos are embedded in the development of the United States of America as a country. An understanding of the historical basis …

The Impact Of Videoconferencing On The Corporate Travel Industry, Mary Elizabeth Grieco

Theses

The wave of the future for businesses is technology. New technology is evolving everyday and in particular, the videoconferencing industry is steadily growing. The corporate travel industry may be influenced by videoconferencing. The focus of this study was to identify the impacts of videoconferencing on management decisions for employee travel. A review of literature, focusing on information technology and videoconferencing was completed. Information was gathered by studying industry journals and current publications. A questionnaire was used to collect further research. The survey was sent to decision makers for employee travel. The questionnaire was designed to capture both present and future …

Customer Satisfaction Measures As Indicators Of Sevice Performance, Jon Kemp

Theses

This document contains a study of customer satisfaction measures that indicate service performance. The study was performed with the customers of a facilities maintenance service company and focused specifically on janitorial/ cleaning services provided on a contract basis. A discussion of quality and specifically service quality involving both importance and measurement is provided to set the framework for the study. Dimensions of service quality and customer perceptions of service quality are discussed in detail. Methods used to guide the research, to gather and to refine customer data include the critical incidents technique, focus groups, and item analysis surveys. One final …

Hybrid-Electric Vehicle Design And Applications, Eric Adams

Theses

This paper discusses the considerations involved in hybrid-electric vehicle design. The tradeoffs between issues such as drive scheme/arrangement, motor choice, batteries, and temperature control are investigated. The technologies and components which are currently available, and those which are likely in the near future, are described. A sport utility vehicle is taken as a specific case study because they are very popular and relatively inefficient. Calculations indicate that a hybrid sport utility vehicle with all wheel drive is feasible using existing components. The next generation vehicle using new technologies is also predicted.

Improvement Of Packaging As One Of The Key Terms Of The Efficient Economy Development, Edward Goldberg

Theses

This paper presents the analysis of the modern packaging technology in the United States, summarizing and featuring the important points and aspects that can be implemented in Russia. The paper emphasizes the important role of packaging in advertising, marketing, distribution and shipping of products, as well as its necessity in order to maintain the products and packaging integrity during shipment and distribution. The level of packaging identity in Russia is close or may be a little bit above zero; the paper gives the detailed analysis of current state of the Russian packaging industry, food distribution and the current trends in …

Simple Network Management Protocol, Latha Sundaresan

Theses

Not provided.

The Effect Of Glucose Oxidase On Reducing Headspace Oxygen In An Airtight Package, Meredith Mchugh

Theses

The objective of this study was to determine the effect of Glucose Oxidase in reducing headspace oxygen in an airtight package. Glucose Oxidase (0.05%) was included in the standard recipe for mayonnaise. A 0.10 ml of headspace gas was removed daily for 10 days from 15 jars of mayonnaise. Results indicated that headspace oxygen was reduced by the Glucose Oxidase. These results indicate that Glucose Oxidase may replace synthetic antioxidants used in food packaging currently. Studies may be continued to research the possibility of the reaction continuing after the product is opened to extend shelf life.