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A Multi-User Network Game For Learning English, Moon Jung Kim Dec 2002

A Multi-User Network Game For Learning English, Moon Jung Kim

Theses

As the era changed, education programs have developed tremendously and there are more people who seek for a new way to study easier. A game is one way to learn new skills; Network games especially can be used most effectively to support the goal of education. I believe that people can gain more knowledge through competitive games than memorizing by them selves. Some might think network games are not needed because there is no need for other people when you can compete with a computer, but There are limitations using just a computer and people feel more competitive when they …


The Assessment Of Language Delays In Preschoolers With The Differential Abilities Scales, Tracey Walenta Dec 2002

The Assessment Of Language Delays In Preschoolers With The Differential Abilities Scales, Tracey Walenta

Theses

Language-delayed preschoolers are a heterogeneous population with diverse language skills and needs. Research has demonstrated the need for more psychometrically sound assessment instruments to accurately identify preschoolers with language delays and their specific subtypes in the general preschool population. Research has also demonstrated the Differential Ability Scales to be an effective and psychometrically sound assessment measure for differentiating among preschoolers across a broad range of skills and abilities. The purpose of this study was to examine the utility of the Differential Ability Scales in distinguishing language-delayed preschoolers and specific subtypes of language delays in the general preschool population. It was …


Response Surface Methodology Of Die-Sink-Electro-Discharge Machined Surfaces, Bhairav Mehta Dec 2002

Response Surface Methodology Of Die-Sink-Electro-Discharge Machined Surfaces, Bhairav Mehta

Theses

The performance of most manufacturing processes depends on numerous parameters and their interactions. Most of the time, selection of an appropriate set of machining parameters is done based on experience, trial and error or both. Electro-discharge machining (EDM) process is complicated and random in nature. The large number of parameters and the inherent complexity of removal mechanism taking place in EDM make it even more difficult to select machining conditions for optimal performance. The objective of this study is to provide information on the relationships between the key input variables and resultant surface roughness and to develop a response model …


Virtual Electro-Photographic Printer Model, Sunadi Gunawan Dec 2002

Virtual Electro-Photographic Printer Model, Sunadi Gunawan

Theses

A halftone image in the computer is a bitmap matrix that contains either 0 or 1 , where 0 means the printer will not deposit any toner onto a paper and 1 means the printer will deposit some amount of toner onto a paper. The amount of toner that is put by the printer onto a paper for a given input signal pattern is characterized. The hypothesis was that the distribution of toner mass on the paper for a given input matrix pattern can be modeled with a toner point spread function, a toner transfer efficiency function, and a noise …


An Investigation Of Trace Cache Organizations For Superscalar Processors, Edward Mulrane Jr Nov 2002

An Investigation Of Trace Cache Organizations For Superscalar Processors, Edward Mulrane Jr

Theses

Techniques such as out-of-order issue and speculative execution aggressively exploit instruction level parallelism in modem superscalar processor architectures. The front end of such pipelined machines is concerned with providing a stream of schedulable instructions at a bandwidth that meets or exceeds the rate of instructions being issued and executed. As superscalar machines become increasingly wide, it is inevitable that the large set of instructions to be fetched every cycle will span multiple noncontiguous basic blocks. The mechanism to fetch, align, and pass this set of instructions down the pipeline must do so as efficiendy as possible, occupying a minimal number …


Single Wall Carbon Nanotube-Nafion Composite Actuators, Brian Landi Nov 2002

Single Wall Carbon Nanotube-Nafion Composite Actuators, Brian Landi

Theses

Single wall carbon nanotube (SWNT)-Nafion composite actuators have been demonstrated for 0.1 - 18 %, w/w doping of purified SWNTs within the polymer matrix. The high purity SWNTs, >95%w/w, were prepared using thermal oxidation and acid treatments for both in-house synthesized pulse laser vaporization SWNTs and commercially obtained HiPco material. Characterization of the purified SWNTs was performed using thermogravimetric analysis, scanning electron microscopy, optical absorption and Raman spectroscopy. Homogeneous dispersions of SWNTs in a Nation polymer series were demonstrated using a combination of homogenization and high speed mixing techniques. Evaluation of SWNT-Nafion composites showed a "debundling" of the SWNT average …


Heat Transfer, Pressure Drop, And Dissolved Gas Effect During Flow Boiling In Microchannels, Mark Steinke Nov 2002

Heat Transfer, Pressure Drop, And Dissolved Gas Effect During Flow Boiling In Microchannels, Mark Steinke

Theses

Microchannels are being considered in many advanced heat transfer applications, including automotive, fuel cells, and electronics cooling. However, there are a number of fundamental issues still unresolved with respect to heat transfer and fluid mechanics perspective. An experimental investigation of the heat transfer, pressure drop, and flow patterns during flow boiling in microchannels is performed. Six parallel microchannels with a mean hydraulic diameter of 207 micron are manufactured and tested. Flow patterns have been observed in the channels under diabatic conditions. Observations suggest that the conventional flow patterns also occur in microchannels, however, the Reynolds number range is significantly lower …


Absent, Shu-Jin Huang Nov 2002

Absent, Shu-Jin Huang

Theses

Inspired by the Romantic Movement, many artists have studied 'selfexploration' as I am doing now. Being uprooted from home and moving to a completely different culture can really influence a person. I am lucky to be exposed to a different culture and this leads me to examine myself in a different light. Who am I really and what makes me unique? In this thesis, I explore the concept of my work, 'Absent', its development, characteristics and the themes of the movements which influenced me.


Aisimam - An Artificial Immune System Based Intelligent Multiangent Model, Srividhya Sathyanath Nov 2002

Aisimam - An Artificial Immune System Based Intelligent Multiangent Model, Srividhya Sathyanath

Theses

The goal of this thesis is to develop a biological model for multiagent systems. This thesis explores artificial immune systems, a novel evolutionary paradigm based on the immunological principles. Artificial Immune systems (AIS) are found to be powerful to solve complex computational tasks. The main focus of the thesis is to develop a generic mathematical model that uses the principles of the human immune system in multiagent systems (MAS). The components and properties of the human immune system are studied. On understanding the concepts of A/5, a literature survey of multiagent systems is performed to understand and compare the multiagent …


A New Electronic Image Array: The Active Pixel Charge Injection Device, George Lungu Nov 2002

A New Electronic Image Array: The Active Pixel Charge Injection Device, George Lungu

Theses

This is a Ph.D. thesis dissertation in which a new type of image sensor is investigated as possible successor to the charge coupled device (CCD) for scientific applications. As a result of the work described in this dissertation, the active pixel charge injection device (AP-CID) has been developed. This device retains most of the positive features of both the charge injection device (CJD) imager (random readout, non destructive readout, antiblooming, increased UV sensitivity, radiation tolerance, low power consumption, low manufacturing price) and the CCD imager (low noise, high dynamic range). The device lacks most of the drawbacks of the aforementioned …


Variable Bit Rate Video Time-Series And Scene Modeling Using Discrete-Time Statistically Self-Similar Systems, Rajesh Narasimha Oct 2002

Variable Bit Rate Video Time-Series And Scene Modeling Using Discrete-Time Statistically Self-Similar Systems, Rajesh Narasimha

Theses

This thesis investigates the application of discrete-time statistically self-similar (DTSS) systems to modeling of variable bit rate (VBR) video traffic data. The work is motivated by the fact that while VBR video has been characterized as self-similar by various researchers, models based on self-similarity considerations have not been previously studied. Given the relationship between self-similarity and long-range dependence the potential for using DTSS model in applications involving modeling of VBR MPEG video traffic data is presented. This thesis initially explores the characteristic properties of the model and then establishes relationships between the discrete-time self-similar model and fractional order transfer function …


5 Photographs, Jim Johnson Oct 2002

5 Photographs, Jim Johnson

Theses

None provided.


Text And Image, David Reed Oct 2002

Text And Image, David Reed

Theses

The purpose of this thesis is to create images that juxtapose forms of the English language, with both related and non-related imagery, to create the illusion of realistic situations. My images will be expressed through computer-imaging processes, and non-toxic printmaking techniques, and will include the printing procedures and the problems associated with it. I will discuss not only the similarities and differences of artists who have influenced my work, but also my source material. The latter having been derived from observing and recording various uses of the English language, both as humor or social comment, and in the form of …


Eye Tracking Observers During Color Image Evaluation Tasks, Jason Babcock Oct 2002

Eye Tracking Observers During Color Image Evaluation Tasks, Jason Babcock

Theses

This thesis investigated eye movement behavior of subjects during image-quality evaluation and chromatic adaptation tasks. Specifically, the objectives focused on learning where people center their attention during color preference judgments, examining the differences between paired comparison, rank order, and graphical rating tasks, and determining what strategies are adopted when selecting or adjusting achromatic regions on a soft-copy display. In judging the most preferred image, measures of fixation duration showed that observers spend about 4 seconds per image in the rank order task, 1.8 seconds per image in the paired comparison task, and 3.5 seconds per image in the graphical rating …


Between The Ankle And The Soul, Christine Carlson Sep 2002

Between The Ankle And The Soul, Christine Carlson

Theses

None provided.


A Parallel Implementation Of An Mpeg-2 Encoder Using Message-Passing, Jennifer Zenner Aug 2002

A Parallel Implementation Of An Mpeg-2 Encoder Using Message-Passing, Jennifer Zenner

Theses

The days of film are waning as digital cameras and digital video cameras are becoming commonplace. Uncompressed digital video can consume large amounts of space, making it cumbersome to store efficiently. A method of video compression was developed by the Motion Pictures Expert Group (MPEG), and is now an international standard with the International Organization for Standardization (ISO). This thesis deals with the MPEG-2 Video standard, ISO/IEC 13818-2 [2]. The goal of this thesis is to explore the applications of MPEG-2 encoding in a parallel processing paradigm. To achieve this, a sequential MPEG-2 software encoder was obtained from the MPEG …


Expressions Of Duality, Daniel White Aug 2002

Expressions Of Duality, Daniel White

Theses

For the graduate thesis I will investigate duality, as it exists in the realm of ego and humility. This is an inward investigation to become aware of how it exists in me. Duality has been of special interest in my life through growing up in two culturally different families with one owning ego and the other humility. The dualism experienced resulted in an internal dialogue deciphering between the two. I am convinced that the diffusion of ego through humor towards a more humbled approach to life is an important foundational block for fully becoming aware of who I am. Humor …


The Function Of Canines In Saber-Tooth Tigers, Colleen Hogan Aug 2002

The Function Of Canines In Saber-Tooth Tigers, Colleen Hogan

Theses

None provided.


Systems Integration Using Siemens' Pc Based Automation Technology, Adwait Palsule Aug 2002

Systems Integration Using Siemens' Pc Based Automation Technology, Adwait Palsule

Theses

Manufacturing Systems Integration is the progressive linking and combination of the various components of the system to merge their functional and technical characteristics into a comprehensive interoperable unit. It requires one to work with different hardware and software. There are a number of vendors providing a large number of products. Integrating these varieties of products provides a greater value than the sum of the value provided by the individual products. What hinders the effective integration of these components is the diversity in the design and the use of these products. Systems Integration is eased by well-established standards in data communication, …


Solution-Phase Synthesis Of Tertiary Amines Via Reductive Amination-Alkylation With Ethyl P-Aminobenzoate, Kristen Harwood Aug 2002

Solution-Phase Synthesis Of Tertiary Amines Via Reductive Amination-Alkylation With Ethyl P-Aminobenzoate, Kristen Harwood

Theses

Combinatorial chemistry is a means of rapidly generating large numbers of diverse molecules for the identification of novel molecular properties. This study will describe the attempt to synthesize, characterize and purify of a library of tertiary amine derivatives of ethyl p-aminobenzoate by solution-phase combinatorial synthesis. In this study, indirect reductive amination and subsequent alkylation of ethyl p-aminobenzoate is expected to produce thirty-five structurally related analogs. HPLC and LC-MS analysis of the resultant library however, shows that reduction of the imine intermediates with sodium triacetoxyborohydride also results in reduction of the ester functionality which prevents the subsequent alkylation reaction. A mechanism …


Analysis And Hardware Implementation Of Color Map Inversion Algorithms, Michael Martin Aug 2002

Analysis And Hardware Implementation Of Color Map Inversion Algorithms, Michael Martin

Theses

The purpose of this thesis is to investigate several algorithms that are used to compute the inverse of a forward printer map. The forward printer map models the printer by mapping points in the printer's input color space to points in the printer's output color space. The inverse of this forward map is required to convert input color specifications in a device-independent color space to a color in the printer's device-dependent color space before being presented to the print engine. The accuracy of the inverse printer map directly affects the accuracy of the reproduced colors. Therefore, any measured change in …


Study Of The Crystallization Behavior Of Polyethylene Oxide In Compatibilized And Uncompatibilized Polypropylene/Polyethylene Oxide Blends, Subramanian Iyer Aug 2002

Study Of The Crystallization Behavior Of Polyethylene Oxide In Compatibilized And Uncompatibilized Polypropylene/Polyethylene Oxide Blends, Subramanian Iyer

Theses

Compatibilization of incompatible isotactic polypropylene (iPP)/polyethylene oxide (PEO) is studied with an emphasis on the crystallization behavior of polyethylene oxide. An attempt is made to correlate the crystallization data for PEO obtained from optical microscopy, differential scanning calorimetry, x-ray diffraction, infrared spectroscopy and dynamic mechanical analysis. PEO and iPP are incompatible in the temperature range -50C to 200C. iPP was used as the matrix while PEO was used as the dispersed phase. Experimental observations demonstrated that PEO underwent fractionated crystallization in the blends in the temperature region from -10C to 40C when cooled at a rate of 10C/min. PEO domains …


See A New Movie: Concepts Of The Future Movie Theater, Tsehsin V. Yang Aug 2002

See A New Movie: Concepts Of The Future Movie Theater, Tsehsin V. Yang

Theses

This thesis itself is designed to be a 'DVD movie' style game, and the movie genre is documentary. The subject matter is my graduate classmates in the Computer Graphics Design department. The target audience of this thesis, based on the movie content and the level of navigation, is high school and over and the computer experience level is intermediate. This thesis offers a concept of how to instruct the movie audience to know better about a new way of seeing movies. Furthermore, by using this program, the audience will find extra fun from this new entertainment. The reason I chose …


In Between, Stephanie Wratten Aug 2002

In Between, Stephanie Wratten

Theses

None provided.


Fiber Reinforced Composites Of A Novel Pendent Polyimide: Optimum Processing And Mechanical Properties, Akshay Kamdar Aug 2002

Fiber Reinforced Composites Of A Novel Pendent Polyimide: Optimum Processing And Mechanical Properties, Akshay Kamdar

Theses

A 2-component polyimide [3,4'-ODA + 4,4'-ODPA], a 3-component "parent" polyimide [3,4'-ODA + 4,4'-ODPA + 10 mol % Mellitic acid dianhydride (MADA)] and a 4-component "pendent" polyimide [3,4'-ODA + 4,4'-ODPA + 10 mol % MADA + 10 mol % Zr] were synthesized and characterized using fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) techniques. Since temperature and time are critical factors influencing the thermal and mechanical properties of the final polyimide, it is important to have detailed information on the best time-temperature conditions for imidization and cure in order to optimize the processing and properties of …


Passive Amplitude-Modulated Microwave Backscatter Modulation System, Aaron Thompson Aug 2002

Passive Amplitude-Modulated Microwave Backscatter Modulation System, Aaron Thompson

Theses

Barcode technology is slowly being replaced with transponder tags that have many benefits over barcodes. Four issues with transponder tags are battery life, power requirement, range of communication, and physical size. Microwave backscatter modulation (MBM) is used throughout industry to reduce the power requirement and size on the transponder tags while compromising range. Researchers and designers of current transponder tags typically utilize a passive carrier-present carrier-absent (CPCA) reflection of the reader's carrier wave, or their transponder design uses an active backscatter system with an amplifier and circular polarization modulation. This research project develops a communication system that mixes a reader's …


A Three-Dimensional Ray Tracing Simulation Of A Synthetic Aperture Ground Penetrating Radar System, James Iii Jeter Aug 2002

A Three-Dimensional Ray Tracing Simulation Of A Synthetic Aperture Ground Penetrating Radar System, James Iii Jeter

Theses

Ground Penetrating Radar (GPR) is a useful tool for imaging the area below the Earth's surface. GPR works on the same principle as traditional radar, evaluating the electromagnetic returns reflected from an object or scene of interest to determine characteristics of the object that reflected the signal. Synthetic Aperture Radar (SAR) is a technique which combines radar returns of a given scene collected at several positions. By compiling the information contained in the returns, an image of a scene can be generated. Combining these two concepts allows us to create an image of an underground scene. Air Force Research Lab, …


Optimal Design Of A 2.4 Ghz Cmos Low Noise Amplifier, Sharmila Sridharan Aug 2002

Optimal Design Of A 2.4 Ghz Cmos Low Noise Amplifier, Sharmila Sridharan

Theses

In most RF receivers, the Low Noise Amplifier (LNA) is normally the first component, whose performance is very critical. For the LNA architecture that uses source degeneration inductors and cascode topology, the performance depends largely on the performance of the inductors. All the parasitics associated with the inductors should be thoroughly analyzed and taken into consideration while designing the LNA. The work presented in this thesis can be broadly classified as follows: optimization of the LNA design with respect to all the parasitics associated with the on-chip spiral inductors, modeling high performance inductors, which are embedded in the silicon substrate …


Picasso: The Use Of Network Delay Compensation To Improve The Response Of A Tele-Robotic Application, Sara North Aug 2002

Picasso: The Use Of Network Delay Compensation To Improve The Response Of A Tele-Robotic Application, Sara North

Theses

This thesis shows the benefits of network delay compensation over an arbitrary Internet connection for a tele-robotic application. The tele-robotic system, named Picasso, is set up in the Systems Laboratory of the Electrical Engineering Department at the Rochester Institute of Technology. Picasso is a robotic arm that users can connect to via the Internet and draw with. This thesis demonstrates that varying the arm speed based on the predicted time-to-next packet results in smoother motion by the arm and a more accurate representation of what the user is drawing on the screen. The method chosen to predict the time-to-next packet …


A Study Of Clutter Reduction Techniques In Wide Bandwidth Hf/Vhf Deep Ground Penetrating Radar, Darien Hammett Aug 2002

A Study Of Clutter Reduction Techniques In Wide Bandwidth Hf/Vhf Deep Ground Penetrating Radar, Darien Hammett

Theses

Reducing clutter is one of the most daunting problems a radar processing engineer faces. Clutter causes a significant problem when attempting to detect sub-surface targets, as any significant change in the ground dielectric will produce a return at the receiver. The difficulty in reducing the clutter is compounded by the fact that the spectral characteristics of the clutter are similar to that of the target. While there are many methods that exist to reduce clutter, few do not require a priori information of either the target or the clutter. There are applications, of interest to the electromagnetic community, that are …