Digital Commons Network^™

Analysis Of Calibration, Robustness, Detection Of Space-Time Adaptive Rada Using Experimental Data, Murat O. Berin

Theses

Signal cancellation effects in adaptive array radar are studied under non ideal conditions when there is a mismatch between the true desired signal and the presumed theoretical desired signal. This mismatch results in decreased performance when the estimated correlation matrix has a large desired signal component. The performance of the sample matrix inversion (SMI) method is compared to the eigenanalysis-based eigencanceler method. Both analytical results and the processing on the experimental data from the Mountaintop Program, show that eigenanalysis-based adaptive beamformers have greater robustness to signal cancellation effects than the SMI method. Also, the calibration of the recorded data, and …

Integrating Key Functions In Product Development : A Conceptual Product Development Model For The Korean Context, Jong-Wook Kim

Theses

The high-tech market is characterized by market uncertainty, technology uncertainty and rapid change. To survive in this risky high-tech market, a company must create competitively effective product development practices that meet its own unique needs and circumstances.

One effective practice is cross-functional integration in the product development process. The advantages of integration include a shortened time to market, successful transformation of research results to production, productivity improvement, innovation project success, and high-quality problem solutions. However, these advantages are rarely obtained in the current product development practices of Korean companies. Their product development efforts are generally characterized by time consuming sequential …

Configuring The Radial Basis Function Neural Network, Insoo Sohn

Theses

The most important factor in configuring an optimum radial basis function (RBF) network is the training of neural units in the hidden layer. Many algorithms have been proposed, e.g., competitive learning (CL), to train the hidden units. CL suffers from producing "dead-units." The other major factor Which was ignored in the past is the appropriate selection of the number of neural units in the hidden layer. The frequency sensitive competitive learning (FSCL) algorithm was proposed to alleviate the problem of dead-units, but it does not alleviate the latter problem. The rival penalized competitive learning (RPCL) algorithm is an improved version …

Linearly Tapered Slot Antenna, Luis Alberto Tumialan

Theses

Design procedure for Linearly Tapered Slot Antennas (LTSA) has been developed and implemented using High Frequency Structure Simulator (HFSS) code based on a finite-element analysis.

A CAD study of two variations of a LISA based on either a stripline or a microstrip feed has been carried out. Circular and radial stubs have been considered in these designs for an antenna operating at 10 Ghz. LTSA on a Duroid substrate fed by a stripline has been designed to operate with better than 12 dB return loss. Fabricated antenna was characterized and had even a wider response than the CAD design. Radiation …

Comparison Of Adaptive Radar Algorithms : Transformed Smi, Eigencanceler, And Smi, Chaitanya H. Kathiari

Theses

Advanced airborne radars must perform target detection in the presence of interference and heavy clutter. In many applications, the practical usefulness of adaptive arrays is limited by their convergence rate. In this paper, we first analyze the performance of the SMI method. Then, two other methods, the transformed SMI and the eigencanceler, both based on the principle component inversion (PCI) technique, are described and analyzed by simulation. It is shown by simulation based comparison that the transformed SMI and the Eigencanceler outperform the SMI method. It is also shown that the transformed SMI and the eigencanceler has higher convergence rate …

Numerical Simulation Of Clipping Distortion In Lightwave Catv Systems, Luay Al-Nadi

Theses

Clipping induced distortion is an essential limit for modulation depth and number of channels in subcarrier multiplexed lightwave video transmission systems. Two different types of laser clipping are compared (single-clipping vs. double-clipping). In this work, the distortion limits imposed by clipping effects, in both directly (single-clipping) and externally (double-clipping) modulated systems, are examined. Numerical simulations were performed to test the efficiency of Saleh's Model. A comparison of results with clipping induced distortion in directly modulated lightwave systems (single-clipping) and clipping induced distortion in externally modulated lightwave systems (double-clipping) is presented, it is shown through numerical simulation that the total non-linear …

Design For Quality Manufacturability Analysis Of Total Nonconformity Damaged Parts, Samir R. Gami

Theses

The competitive nature of modern manufacturing, demands that innovative approaches be applied in order to have a competitive edge. Shortening the product development cycle, the period from initial design to full production, is a priority for most manufacturers today. The DFQM methodology addresses the issue of quality manufacturability (QM) - the likelihood that defects will occur during manufacture of a product in a standard plant. As a consequence, DFQM helps to shorten the design cycle time. The DFQM architecture identifies a variety of design factors and variables that influence specific defects. This process of influencing defects can be described by …

Implementation Of A Three-Dimensional Non-Intrusive Particle Tracking System, Vivek Gupta

Theses

A Three-Dimensional Non-Intrusive Particle Tracking System has been developed at NJIT's Particle Technology Center to provide experimental results for validating theories being developed in the field of Particle Technology. The system utilizes the principle of magnetic induction between several high-frequency miniature transmitters mounted inside a sphere and a set of receiving loop antennae mounted outside the experimental apparatus. Basic theories and algorithms for the tracking system have already been developed. The focus of this thesis is to make the tracking system more accurate, reliable and user-friendly and to apply it to the study of vibrated beds and chute flows. Various …

Gabor Expansion Of An Equivalent Dipole Antenna, Oksana Manzhura

Theses

The Gabor representation in the context of an aperture problem is an expansion of a radiated field in terms of a discrete set of linearly shifted and spatially rotated elementary Gaussian beams. The parameters that can be varied in this summation are the number of beams and corresponding beam widths. As the difficulty associated with the unique determination of the expansion coefficients was alleviated, the method has been successfully applied to one and two dimensional apertures. Although, the asymptotic evaluation of expansion functions has reduced the computational burden drasticallym it was at the expense of some loss in accuracy. The …

Small Computer System Interface (Scsi) Universal Services For The Turbonet Parallel Computer, Artak Ohan Melkonian

Theses

TurboNet is a parallel computer with shared-memory and message-passing hybrid architecture. It employs two boards, with four digital signal processors (DSPs) each, and a host FORCE SPARC CPU-2CE board with a SCSI bus.

Software has been developed in this thesis to provide SCSI services to programs running on the DSPs. DSP programs can therefore fully control assigned SCSI devices at the SCSI command level. Transfer control modifiers ensure compatibility with most SCSI devices.

The software provides service for three SCSI access levels. The "su" SCSI universal device driver is built into the host computer's kernel and is a gateway to …

Signal Processing Techniques In Heart Rate And Systolic Arterial Blood Pressure Variability Studies, Christopher O'Bara

Theses

Power spectral analysis of heart rate and systolic arterial blood pressure variability provides a window to the activity of the autonomic nervous system. To derive power spectra from raw blood pressure and electrocardiogram signals, many steps of signal processing must be performed. Most popular methods of spectral analysis require evenly spaced samples; therefore interpolation and resampling techniques must be used.

The results of the present study indicate that different interpolation techniques result in spectral distortions that vary depending upon the interpolation methods used as well as physiological parameters such as heart and respiration rate. Different interpolation methods applied to heart …

Construction Of Accurate Molecular Models Using Laser Stereolithography And Determination Of Nmr Spectra For Amiloride Hydrochloride And Its Free Base, Ana Deborah Ofsievich

Theses

Accurate molecular models were constructed by a rapid prototyping process, called stereolithography. This process uses a computer-controlled laser to cure and solidify a photosensitive liquid polymer. Using a computer-aided design (CAD) program, spheres of appropriate van der Waals or CPK radii were drawn and placed in the three dimensional CAD space, in accordance with the atomic coordinates obtained from quantum mechanical calculations and from neutron diffraction data. These design data were used to drive the stereolithography system where the models were built in the same shape as the CAD image. The models built for the purpose of this work consisted …

Design And Development Of Four To Sixteen Channel Video Multiplexers, Ronan Rahimi

Theses

Video multiplexer series were successfully designed and built for prototype and evaluation both in terms of hardware and software. The hardware platform was designed to accommodate up to sixteen color video input channels for time lapse or real time recording on a single video cassette recorder. This product implements four modes of operation; Live, Record, Playback and Menu mode, which is not a full mode of operation. Menu mode is a series of on-screen programming menus which appears on Live, Record and Playback modes. Menu mode enables the user to program the machine to work under specific modes of application. …

A Comparative Study Of Image Compress Schemes, Kui Wang

Theses

Image compression is an important and active area of signal processing. All popular image compression techniques consist of three stages: Image transformation, quantization (lossy compression only), and lossless coding (of quantized transform coefficients).

This thesis deals with a comparative study of several lossy image compression techniques. First, it reviews the well-known techniques of each stage. Starting with the first stage, the techniques of orthogonal block transformation and subband transform are described in detail. Then the quantization stage is described, followed by a brief review of the techniques for the third stage, lossless coding.

Then these different image compression techniques are …

Corporate Animation, Carol Langella

Theses

Not provided.

A Study Of Curriculum Development And Style: Implemented In Culinary Arts, Karen Leach

Theses

Not listed.

Design Of Graduate Program Home Page For The School Of Food, Hotel And Travel Management, Mei-Jung Cheng

Theses

The graduate program home page was designed for two target markets: potential graduate students and potential employers for our graduate students. To attract more students enrolling in the School of Food, Hotel and Travel Management (FHTM) at RIT and increase the graduate students recruited opportunity by outside company, it is necessary to let those two groups know what the school is doing and what students are learning during the academic years by simply viewing the web pages. The graduate page design was emphasized on the functions of frames and hyperlinks because the frames are getting popular on the Internet. Further, …

Impact Of A Hospital-Based Department Of Food And Nutrition Newsletter In Changing Eating Behaviors Of Hospital Employees, Mary M. Crockett

Theses

The impact of a weekly nutrition newsletter upon the eating behavior of hospital employees was examined in this study. Ten percent (175) of employees who eat in a hospital cafeteria were surveyed before, and three months after, the initiation of a nutrition newsletter. Each survey had two parts. The first part was designed to gather demographic information and to assess employee satisfaction with the cafeteria. The second part was a self-reported eating behavior questionnaire comprised of seventeen questions with three possible scores for each response. Information gathered in part one of the first survey was used to make changes to …

Comparative Analysis Of Airline Reservation Systems On The Internet In Terms Of Convenience, Somyot Wattanakamolchai

Theses

The Internet is expanding at a rapid pace every day as well as various groups of people are trying to put their transactions on the Net including travel industry's people. Many travel agencies and airline companies today launch their travel services on the Web. These services include checking flight schedule and availability and ticket reservations and purchases. The focus of this study was to analyze these travel services on the Internet to find out whether they were convenient for public users. A review of literature, focusing on travel agencies and the Internet and the dimension of convenience for using the …

Ontario Superhost... What Is Its Value To Service Providers?, Susan Hamer

Theses

The purpose of this study is to examine the Ontario SuperHost Seminar and determine the value of its content, in the workplace, according to the surveyed participants. The sample group included employees from various businesses and companies who held positions at levels ranging from President and C.E.O., department managers, municipal government employees to fast-food counter staff, and general citizens. The surveyed participants live and work in villages, towns and cities in South Central Ontario. The results of the survey indicate that the Ontario SuperHost Seminar is beneficial to improving a number of interpersonal skills required by service providers in order …

Assessment Of Changes In The Decision Making Environment In A 210 Room, Rochester, Ny Hotel: A 1996 Case Study, Nikhila Sridhar

Theses

This case study was done to measure changes from 1994 to 1996 in the decision making environment of a local, 210 room hotel in Rochester, NY. This study is considered to be a developmental research project using a longitudinal approach. The data collected in this case study were compared to the results of Koo who conducted the same study in 1994. This case study also compared differences between two Rochester, NY hotels, Hotel A and Hotel B, in 1996 that are owned and operated by the same corporation. The instrument used in this case study was the psychometric, critical incident …

Measuring The Effectiveness Of Service Management On Priority Assessment: A Case Study For The Ritz-Carlton Hotel Company, Andrew Jacobson

Theses

This study addresses three main questions of how effective is the Ritz-Carlton on service process management. They are 1) What process management do they use, 2) What are the top three priorities and 3) How do they measure what they are measuring against. These three questions were asked how the Ritz-Carlton were able to maintain their excellent quality after winning the Malcolm Baldridge National Quality Award. To address these questions, two main approaches were taken. Two interviews were conducted, On March 29th, 1995 with Mr. Patrick Mene, Director of Quality Control, at the Corporate Office in Buckhead, Georgia and August …

Temporary Labor: Issues Of Training, Motivating, And Retaining A Temporary Workforce, Kerry Beadle

Theses

This study focuses on the limiting conditions affecting training, motivating and retaining the temporary employees at the White Eagle Conference Center in Hamilton, New York. In order to provide a clear understanding of the temporary employee situation, a broad outlook of the use of temporaries in the service sector is presented. It includes factors inhibiting commitment, pride, and an ownership feeling in the organization, as well as discussion of issues dealing with training, recruiting, orientation, and turnover. The data gathered for this study was developed through a company wide survey. Information relevant to the subject was collected from literary sources …

Achieving Customer Delight Through Employee Driven Teams, Philip Guarno

Theses

This study shows the relationship between TQM and employee driven teams, and customer satisfaction and delight. The study explains the developmental stages of TQM leading up to self directed work teams in the U.S. The subjects for the study are the Food and Beverage department at IBM, Palisades. The property has been the recipient of several quality awards based upon the Malcolm Baldrige Award criteria. The study presents the training and tools utilized to implement the teams, a sample of the customer survey form and detailed analysis of data presented in the format of World Class, customer satisfaction and defect …

Assessment Of Changes In The Decision Making Environment In A Rochester, Ny Hotel: A 1996 Case Study, Salaya Chermsirivattana

Theses

This was a third year case study on the detection of changes in the structures and processes that support effective decision making within a hotel in Rochester, NY The case study is considered to be a developmental research using a longitudinal approach in a present perspective. The purpose for this case study was to look at changes that occurred in these two sets of years: (1) 1994 and 1996; and (2) 1995 and 1996. The results found in 1996' s study were compared to those found by Koo in 1994 and Stubblebine in 1995 with the use of the "Organizational …

The Integration Of An Information Processing System: A Case Study Based At The Lodge At Woodcliff, Robert Sweeney

Theses

To make the claim that one provides 'World Class' service is easy. Supporting that claim is not so easy if you do not have the proper tools. The Lodge at Woodcliff, a resort hotel in Rochester, New York claims to provide 'World Class' service, but does not have the facts or tools to produce the facts to support this claim. Data has been collected related to service quality throughout the resort. This action research will attempt to integrate an information processing system at the Lodge at Woodcliff. This information processing system will enable management at the Lodge at Woodcliff to …

Rit Center For Digital Media: An Imperative For Change, James Parasole

Theses

Not provided.

Investigation Into The Use Of The World Wide Web As An Interface For Distributing Electronic Documents To And From A Remote Digital Color Printing Site, Ronald J. Recene

Theses

The World Wide Web and Internet are the most talked-about and fastest-growing mediums for information and electronic document distribution. Their growth has, and will continue to have, a great impact on all forms of media, due to their potential to reach millions of individuals. This project demonstrates the capabilities of the World Wide Web to perform, not only as a publishing vehicle, but as a means for communication and document distribution to a digital color printing facility. In order to show this, a Web site was built that incorporated the utilities needed for the successful exchange of data, such as …

A Study To Evaluate Current Color Matching Procedures, Brian Mcdonough

Theses

The primary objective of this study was to determine if current color matching procedures produce the desired color on the final printed package. A problem with printed items is that multiple departments and companies are involved with the choosing, specifying and approving of colors. This study evaluated one part of this procedure - the printed color standard. The printed color standard is used by the printer and packaging buyer to assure color consistency. However, there is often little understanding of light sources, color perception, chromatic adaptation, metamerism and ink dry-back. Color reference systems, like Pantone, recommend updating their color standards …

Infrared Wireless Communication, Noor Haq

Theses

Infrared wireless communication has already proven to be commercial success in the Television (TV) and Video Cassette Recorder (VCR) remote markets and is poised to become a key technology in a number of business markets. Over the next few years, we may witness an explosive growth of Infrared based "walk-up" data access and seamless indoor mobile data networking. The protocol architecture proposed by Infrared Data Association (IrDA), a non-profit organization founded in the summer of 1993, is very rapidly emerging as an industry wide infrared standard for "walk-up", point-to-point communication The paper examines the IrDA protocol model and how the …