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Analysis Of The Congress Of New Urbanism Landscape Design Principles And Social Interaction, David Bartz Aug 2007

Analysis Of The Congress Of New Urbanism Landscape Design Principles And Social Interaction, David Bartz

Landscape Architecture Masters & Design Theses - Archive

The Congress of New Urbanism (CNU) is a relatively new topic among urban developers, planners, and city leaders. It seeks to change the way cities and towns are built by creating compact neighborhoods that encourage pedestrian activity. This study was an exploration of the design principles of the Congress of New Urbanism (CNU) as they relate to contemporary neighborhood design research and how effective they are at stimulating social interaction through increased use of outdoor areas. The context of the study stems from the CNU implying that friendly sociable neighborhoods can be physically designed (Talen 2002). More specifically the CNU …

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Usu1320 - History And Civilization, Fall, 2007, Mark Damen Aug 2007

Usu1320 - History And Civilization, Fall, 2007, Mark Damen

University Studies - OCW

The purpose of this course is to survey the development of various Western civilizations and the ways in which culture translates, transforms, and transcends the world around it. But, while we will survey history across many millennia and several continents, this is not strictly a "survey class." We are not obliged to cover "Plato to NATO" and, as such, this course will serve neither time nor topic but spread its colors where curiosity draws the eye.

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Inst7150 - Introduction To Open Education, Fall 2007, David Wiley Aug 2007

Inst7150 - Introduction To Open Education, Fall 2007, David Wiley

Instructional Technology & Learning Sciences - OCW

The goals of the course are (1) to give you a firm grounding in the current state of the field of open education, including related topics like copyright, licensing, and sustainability, (2) to help you locate open education in the context of mainstream instructional technologies like learning objects, and (3) to get you thinking, writing, and dialoguing creatively and critically about current practices and possible alternative practices in open education.

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Design Aids For Threaded Rod Precast Prestressed Girder Continuity System, Maher K. Tadros, Leslie D. Martin Aug 2007

Design Aids For Threaded Rod Precast Prestressed Girder Continuity System, Maher K. Tadros, Leslie D. Martin

Nebraska Department of Transportation: Research Reports

No abstract provided.

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Teaching Students How To Analyze And Adapt To Audiences, John S. Seiter, R. H. Gass Aug 2007

Teaching Students How To Analyze And Adapt To Audiences, John S. Seiter, R. H. Gass

Languages, Philosophy, and Communication Studies Faculty Publications

Not long ago, one of the author's students told him, “I won't be able to make it to your class today. I have to study for a test in another course. Will I miss anything important?” The author, of course, had heard this excuse before, as many of us probably have. What made this interaction more amusing was what, by coincidence, the student was going to miss that day: a discussion on analyzing and adapting to audiences. Had she attended the class, we wonder if she would understand the negative ways in which her excuse might be interpreted by a …

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Interlaminar Fracture Of Unidirectional Reinforced Composites With Toughnened Resin Systems, Aaron Slager Aug 2007

Interlaminar Fracture Of Unidirectional Reinforced Composites With Toughnened Resin Systems, Aaron Slager

Material Science and Engineering Theses - Archive

Several undisclosed fiberglass and carbon fiber laminates with toughened resin systems were tested and examined. Experiments were conducted to determine Modes I and II interlaminar fracture toughness for each of the nine laminates with varying types of processing forms such as roving, tape, and slit tape of glass and carbon fibers. Fractography was then used to correlate the fracture toughness results with the unique characteristics and failure mechanisms. Overall, fiberglass laminates had larger interlaminar fracture toughness for both Modes I and II over the carbon laminates. This was also confirmed by the significant amount of the fractured surface area and …

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Dna Based Thin Film As Hole Transport Layer In Bulk Heterojunction Polymer Solar Cells, Vidyalakshmi Kolachure Aug 2007

Dna Based Thin Film As Hole Transport Layer In Bulk Heterojunction Polymer Solar Cells, Vidyalakshmi Kolachure

Material Science and Engineering Theses - Archive

In the field of organic solar cell, the conjugated polymer-fullerene bulk heterojunction concept is one of the ongoing research interests. In this work, the use of de-oxyribose nucleic acid/ hexadecyl trimethyl ammonium chloride (DNA/CTMA) thin films as hole transport layer in poly(3-hexylthiophene)-methanofullerene (P3HT-PCBM) bulk heterojunction polymer solar cell is demonstrated. P3HT-PCBM bulk heterojunction polymer solar cell was fabricated with a DNA complex layer replacing commonly used PEDOT-PSS (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS). While PEDOT-PSS, as a hole transport and electron blocking layer, often improves the solar cell performance by improving fill factor, it requires careful engineering of spin-coating for the aqueous solution of …

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Complete Stress Analysis For Two Dimensional Inclusion Problem Using Complex Variables, Rohan Arun Patil Aug 2007

Complete Stress Analysis For Two Dimensional Inclusion Problem Using Complex Variables, Rohan Arun Patil

Mechanical and Aerospace Engineering Theses - Archive

This thesis addresses the problem of finding stresses and displacements in an infinite plate with a two dimensional circular inclusion with different material properties using complex variable method with biaxial loading acting on it. The complex variable method is used so that the continuity equations of traction force and displacement field are satisfied at the interface .All the complex equations are solved using software Mathematica.

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Stress Analysis Of An Ellipsoidal Inclusion, Mahesh Kailas Aug 2007

Stress Analysis Of An Ellipsoidal Inclusion, Mahesh Kailas

Mechanical and Aerospace Engineering Theses - Archive

The focus of the present thesis is to develop a mathematical model to calculate the stresses inside an ellipsoidal inclusion present in an infinitely extended matrix region and to validate the mathematically derived model by the Finite Element Method. To this end, a theoretical model has been developed to predict the stress inside an ellipsoidal inclusion. This model is based on equivalent inclusion method used to evaluate the stress distribution theoretically. Though there have been many theories to predict the stress distribution inside an ellipsoidal inclusion, its numerical validation is new despite its importance. A finite element model of a …

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Exploratory Studies Of Convective Flows Due To Arc Tracking, Richard R. Mitchell Aug 2007

Exploratory Studies Of Convective Flows Due To Arc Tracking, Richard R. Mitchell

Mechanical and Aerospace Engineering Theses - Archive

The objective of the research was to develop an understanding of how a flame propagates through an electronic enclosure. FLUENT®, a Navier-Stokes solver, was chosen due to its widespread commercial use, the availability of turbulence models and its ability to handle combustion. The relevance of this study with respect to the aerospace and domestic appliance industry was shown through case reports. Initial observations were made on arc discharges, chemical compounds and their relevance to establishing the flame. Experimental bench tests highlighted the instigating factors for flame ignition. The first round of bench testing revealed that solder node separation played an …

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Diversification Benefits Of Real Estate Assets And Equity Assets In A Regional And Global Perspective, Nafeesa Yunus Aug 2007

Diversification Benefits Of Real Estate Assets And Equity Assets In A Regional And Global Perspective, Nafeesa Yunus

Finance and Real Estate Dissertations - Archive

The primary purpose of this dissertation is to utilize recently available and reliable high frequency transactions based data provided by FTSE EPRA/NAREIT and employ modern day time series techniques and recently developed diagnostic tests to evaluate the degree of long-run integration and short-run dynamics among major public property markets (in terms of market capitalization) over a period beginning January 2000 and ending March 2006 to evaluate diversification possibilities from the perspective of the US investor. Both Asia and Europe are investigated. A secondary objective is to examine the long-run and short-run interaction among the corresponding major international equity markets to …

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Vehicular Emissions Models Using Mobile6.2 And Field Data, Abhishek Yerramalla Aug 2007

Vehicular Emissions Models Using Mobile6.2 And Field Data, Abhishek Yerramalla

Civil Engineering Theses - Archive

Regression models to predict vehicular emissions for different categories of vehicles for different pollutants are presented in this thesis. Vehicular emissions are affected by numerous variables which, among others, include speed, temperature, acceleration, deceleration, driving behavior and meteorological data. Regression models are developed based on data obtained from Mobile 6.2 and on-board emissions measurements. The U.S. Department of Transportation (US DOT) conducted sensitivity analysis of Mobile6 where they evaluated different parameters used to find the emission factors, such as vehicle miles traveled, speed, humidity, etc. The sensitivity analysis investigated the overall Mobile6.2 model behavior for various conditions. In the analysis, …

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Large Array Emg Monitoring Of Lumbar Region Muscle Action In Discogenic Low Back Pain, Jazzmyne Ann Richardson Buckels Aug 2007

Large Array Emg Monitoring Of Lumbar Region Muscle Action In Discogenic Low Back Pain, Jazzmyne Ann Richardson Buckels

Bioengineering Theses - Archive

This project explored the use of large array surface electromyography (LASE) as a technique for assessing the patterns of muscular activity under standardized loading conditions in patients with lumbar disc related pain and healthy subjects. Specifically, the project evaluated quantitative parameters of visually observed patterns of muscle action proposed to clinically discriminate between groups. If such correlates exist, then, this work may lead to technology assessment for sensitivity and specificity as a diagnostic procedure. Solutions to the issues for determining the effects of low back pain (LBP) on force and moment generation in the spine as well as its effect …

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A Functional Analysis Of The Mechanically And Metabolically Sensitive Components Of The Skeletal Muscle Exercise Pressor Reflex In Hypertension, Anna Katherine Leal Aug 2007

A Functional Analysis Of The Mechanically And Metabolically Sensitive Components Of The Skeletal Muscle Exercise Pressor Reflex In Hypertension, Anna Katherine Leal

Bioengineering Theses - Archive

Background - In hypertension, physical activity creates a risk for adverse cardiac events by causing exaggerated increases in mean arterial pressure (MAP) and heart rate (HR). One physiological mechanism responsible for this cardiovascular hyperactivity is the exercise pressor reflex (EPR). The EPR is a neural pathway originating in skeletal muscle that contributes to cardiovascular regulation during exercise. The EPR is composed of two afferent arms: one is comprised of mostly mechanically sensitive, group III afferent fibers that respond to muscle stretch and pressure, and the other is predominantly metabolically sensitive, group IV afferent fibers that respond to the chemical milieu …

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Development Of A Broadband Multi-Channel Nirs System For Quantifying Absolute Concentrations Of Hemoglobin Derivatives And Reduced Scattering Coefficients, Dheerendra Kashyap Aug 2007

Development Of A Broadband Multi-Channel Nirs System For Quantifying Absolute Concentrations Of Hemoglobin Derivatives And Reduced Scattering Coefficients, Dheerendra Kashyap

Bioengineering Dissertations - Archive

Near infrared spectroscopy (NIRS) has been widely applied to investigate hemoglobin oxygenations of muscles, brain and breast tumors. Steady state reflectance techniques developed previously have been restricted to determination of relative concentrations. To overcome these limitations, this dissertation describes the development, validation and applications of broadband, steady-state, optical spectroscopic systems and algorithms to quantify absolute concentrations of hemoglobin derivatives and reduced light scattering coefficients using (1) thin optical probes with small (100 μm - 1 mm) source-detector separations and (2) a large separation (< 4 cm) probe.. A recently developed mathematical model by Zonios and Dimou for reflectance at small source-detector separations was used to develop techniques to quantify chromophore concentrations and light scattering coefficients (Chap. 2). Blood-intralipid phantom models were used to determine empirical coefficients to model reflectance spectra. This technique was further applied to quantify hemodynamic changes during formalin- induced pain behaviors in rats (Chap. 3). To overcome limitations in penetration depth and investigated tissue volume, another approach to quantify concentrations of chromophores in tissues at large source-detector separations was also developed. This novel approach uses the process of second differential spectroscopy to quantify concentrations of deoxygenated hemoglobin with respect to the tissue water content. Based on such quantification, an adaptation of the ant colony optimization algorithm was utilized to quantify absolute concentrations of other constituent tissue chromophores. The developed techniques were validated with the reflectance measurements from blood-intralipid phantoms and further applied to monitoring of ex vivo human prostate lesions and of rat brain tumor growth in vivo (Chap. 4). In the second stage of my doctoral development, a multi-channel, broadband, steady-state, NIRS imaging system was developed to determine spatial distributions of hemoglobin concentrations and reduced light scattering coefficients. The imager was calibrated with laboratory phantoms to eliminate deterministic instrumentation bias of CCD-spectrometers, optical fibers, and multiplexer channels. Calibration procedures also include determinations of the source strength and boundary coefficients in order to obtain accurate image reconstructions. A multi-wavelength, spectrally constrained reconstruction algorithm was developed to obtain tomographic maps of hemoglobin derivative concentrations and reduced scattering coefficients, using laboratory tissue phantoms. The developed imaging system and reconstruction algorithms were validated with both static and dynamic multi-tube phantoms.

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Resolution And Localization In Single Molecule Microscopy, Sripad Ram Aug 2007

Resolution And Localization In Single Molecule Microscopy, Sripad Ram

Bioengineering Dissertations - Archive

Rayleigh's criterion is extensively used in optical microscopy to determine the resolution of microscopes. Despite its widespread use, it is well known that this criterion is based on heuristic notions and can be surpassed in a regular optical microscope. The inadequacy of Rayleigh's criterion has necessitated a reassessment of the resolution limits of optical microscopes. The thesis proposes a new resolution criterion that overcomes the limitations of Rayleigh's criterion. The new result predicts that there is no resolution limit, but that the resolvability depends on the number of detected photons. Analytical tools are introduced to estimate the distance from microscopy …

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Spatial Resolution And Biliary Tissue Classification Properties Of A Near Infrared Light Imaging Probe, Praveen Kumar Gulaka Aug 2007

Spatial Resolution And Biliary Tissue Classification Properties Of A Near Infrared Light Imaging Probe, Praveen Kumar Gulaka

Bioengineering Theses - Archive

Approximately 500,000 Gallbladder Surgeries or Laparoscopic Cholecystectomies are performed annually to remove the Gallbladder. This surgery becomes necessary due to formation of gall stones. As biliary tract tissues are embedded in fat, differentiating them from neighboring tissues and blood vessels is critical in helping surgeons during laparoscopic cholecystectomy to avoid post-surgical complications. Optical spectroscopy (in both visible and near infrared regions) is investigated as a possible technique to identify biliary tract tissues and blood vessels. Such reflectance measurements provide information of effective attenuation, which is an index of optical properties of the tissue.Specifically, optical reflectance measurements were made on biliary …

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Experimental And Field Monitoring Studies On Recycled Materials As Pavement Bases, Sunil Kumar Sirigiripet Aug 2007

Experimental And Field Monitoring Studies On Recycled Materials As Pavement Bases, Sunil Kumar Sirigiripet

Civil Engineering Theses - Archive

Natural aggregates derived from a variety of source rocks have been used as a road base material. But the extraction of natural aggregates resources is increasingly being constrained by urbanization, increased costs and environmental concerns. Thus, increased amounts of reclaimed materials are being used to supplement natural aggregates in road construction. Recycled Asphalt Pavement (RAP) material is one of the important recycled materials used in the present geotechnical applications. Many agencies are constantly seeking to reap the benefits of utilizing RAP. Main advantages of utilizing RAP include the preservation of the existing profile, conservation of asphalt and aggregate resources, conservation …

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The Travel Behavior Of Minority Cohorts In Texas, Gustavo A. Jimenez Vera Aug 2007

The Travel Behavior Of Minority Cohorts In Texas, Gustavo A. Jimenez Vera

Civil Engineering Theses - Archive

Texas is changing dramatically; the most conservative population forecast indicates that Hispanics will account for 50% of the Texas population before 2035. Not only is the number of Hispanics on the rise in Texas, but also the foreign-born share has increased dramatically over the last 15 years. The State of Texas is now a majority minority state, and minority cohorts are expected to grow and become more than 65% of the Texas population before 2035. Transportation professionals in the State of Texas are wondering how these demographic changes will affect the transportation system. To gain an understanding of this, one …

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Cmos Vco & Lna Implemented By Air-Suspended On-Chip Rf Mems Inductors, Varun K. Shenoy Aug 2007

Cmos Vco & Lna Implemented By Air-Suspended On-Chip Rf Mems Inductors, Varun K. Shenoy

Electrical Engineering Theses - Archive

In this thesis, a CMOS 2.4 GHz Low noise amplifier (LNA) and Voltage-controlled oscillator (VCO) was designed and simulated. These circuits were designed to operate in the 2.4GHz Industrial Scientific Medicine (ISM) band and to achieve Bluetooth and Wifi standard specifications. High-Q RF MEMS air-suspended circular spiral inductors are used in both circuits. High-Q inductors give the circuit better performance parameters including higher gain, lower noise figure and narrower bandwidth. The integration of these RF MEMS inductors onto RF circuit chips was carried out using the UV-LIGA technique and an additive pattern transfer technique such as electroplating. The LNA maintains …

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Spatially Resolving Spectrometer For Characterisation Of Broad-Area Laser Diodes, Sheldon Fernandes Aug 2007

Spatially Resolving Spectrometer For Characterisation Of Broad-Area Laser Diodes, Sheldon Fernandes

Electrical Engineering Theses - Archive

The mode pattern of the BALD (Broad-Area Laser Diode) is characterized and measured using a 1-GHz resolution double-pass spectrometer. The design of spectrometer allowed also a spatial discrimination with 1mkm resolution. The construction and design of the double-pass grating is analyzed and discussed. A matrix approach is developed for the double-pass measurement arrangement. The developed procedure of analysis of spatially resolved spectra provides unique information about broad-area laser diode active medium and cavity geometry and potentially will help to predict the reliability of the laser diode. The developed model is based on paraxial approximation. The laser diode modes are measured …

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Fabrication Of A Silicon Single Electron Transistor, Sharukh Roomy Chinoy Aug 2007

Fabrication Of A Silicon Single Electron Transistor, Sharukh Roomy Chinoy

Electrical Engineering Theses - Archive

Single electronics has bright prospects because of its high scalability. The single electron transistor (SET) which utilizes these principles could replace the current workhorse of the industry, the MOSFET. The SET is plagued with limitations such as, a low operating temperature, background charge issues, a low voltage gain and high output impedance. The current generation SET devices have overcome most of the aforementioned issues but use highly complicated fabrication techniques. Electron beam lithography was used to pattern device structures on silicon-on-insulator (SOI) wafers with a hydrogen silsesquioxane (HSQ) system being the resist. The silicon was then etched using HSQ as …

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A Potential Field Approach To Multiple Robot Formation Control, Rohit Santosh Talati Aug 2007

A Potential Field Approach To Multiple Robot Formation Control, Rohit Santosh Talati

Electrical Engineering Theses - Archive

A special case of cooperative control for mobile robots is considered - formation control. A potential field based algorithm is developed in which geometric, communication and information centric influences are considered and allowed to deform the formation. Control is accomplished in a leader-follower(s) method. One leader robot defines the overall trajectory and follower nodes individually and autonomously maintain the formation while simultaneously moving toward a goal position. The particular nodes considered are the ARRIbots developed at the Distributed and Intelligence and Autonomy Lab (DIAL) in the Automation and Robotic and Research Institute (ARRI), which are non-holonomic differential-drive wheeled robots. In …

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Students' Noticing And Incorporation Of Written Feedback: A Snapshot Of Esol Writing Instructors' Commentary On Adult Esol Students' Essays, Heather Leilani Clark Aug 2007

Students' Noticing And Incorporation Of Written Feedback: A Snapshot Of Esol Writing Instructors' Commentary On Adult Esol Students' Essays, Heather Leilani Clark

Linguistics & TESOL Theses - Archive

Combining descriptive text analysis with qualitative interviews, the current study addresses the student-teacher written feedback interaction. Reflecting upon the existing debate within second language acquisition research, which focuses on the interface, or non-interface, of conscious and unconscious learning, the first part of the study investigates the role of noticing. Using teacher written commentary on student essays, learners are asked to identify the existence, boundaries, and nature of errors in their interviews. Student interviews are also used to articulate student perspectives on the purposes of feedback. This data illuminates differing opinions between students and teachers. Student essays are further used to …

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An Integrated Framework For Enhancing User Experience For Different Data Services In Multi-Rate Wireless Systems, Sourav Pal Aug 2007

An Integrated Framework For Enhancing User Experience For Different Data Services In Multi-Rate Wireless Systems, Sourav Pal

Computer Science and Engineering Dissertations - Archive

Technological advances in multi\--rate wireless systems have made wireless data services an intrinsic part of human life. An abundance of wireless devices, both in the wireless enabled home multimedia systems as well as in corporate offices, have trigerred an array of research in enhancing the wireless data services. The success and acceptance of these various rich data services Technological advances in multi\--rate wireless systems have made wireless data services an intrinsic part of human life. An abundance of wireless devices, both in the wireless enabled home multimedia systems as well as in corporate offices, have trigerred an array of research …

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Enhanced Targeting In A Haptic User Interface For The Physically Disabled Using A Force Feedback Mouse, Brian Holbert Aug 2007

Enhanced Targeting In A Haptic User Interface For The Physically Disabled Using A Force Feedback Mouse, Brian Holbert

Computer Science and Engineering Dissertations - Archive

Although the human computer interface continues to evolve by engaging sight, voice, sound, and touch to manipulate the environment, the marriage between mouse and graphic based operating systems remains one of the primary relationships through which we interact with the computer. With the advent of haptics it has become possible to enhance the GUI/mouse relationship with the sense of touch using a haptic mouse, opening new avenues of interaction, in particular for those with disabilities. For the majority of users the mouse is an effective and proven device for human computer interaction. However it is not as well suited for …

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Characterization Of A Hyperspectral Imager: A Diagnostic Tool For Monitoring Retinal Diseases, Nirad Zinzuwadia Aug 2007

Characterization Of A Hyperspectral Imager: A Diagnostic Tool For Monitoring Retinal Diseases, Nirad Zinzuwadia

Bioengineering Theses - Archive

We developed a novel hyperspectral slit lamp ophthalmoscope for visualizing vascular changes for clinical monitoring of retinal diseases, for example, diabetic retinopathy. The device consists of a visible charge couple device, CCD, and liquid crystal tunable filter, LCTF, coupled to the standard clinical slit lamp ophthalmoscope. The LCTF is used as a spectral light source illuminating the retina with different wavelengths of light that are recorded by the CCD and stored as a series of wavelength dependent images of the retina. Chemometric analysis produces a gray scale encoded image for the percentage of oxyhemoglobin at each pixel within the field …

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Roadway Shallow Water Flow Modeling By Velocity Distribution, Chirakarn Sirivitmaitrie Aug 2007

Roadway Shallow Water Flow Modeling By Velocity Distribution, Chirakarn Sirivitmaitrie

Civil Engineering Dissertations - Archive

Manning's equation is a widely used method for determining flow discharge in a channel with unconfined gravity flow. The roughness value, n-value, is a critical factor for Manning equation to obtain the accurate amount of flow. A precise estimation of Manning "n" is difficult to obtain and varies by investigator justification and experience. Flow on a roadway is a type of open channel flow normally determined by Manning's equation. To ensure reliability and highway safety, the hydraulic geometry dimensions such as spread, depth and discharge must be accurately estimated. A Texas Department of Transportation Manning n-value research project collected data …

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West Nile Virus Monitoring In North Central Texas And A Proposed Surveillance Model, Mark Edward Dinubila Aug 2007

West Nile Virus Monitoring In North Central Texas And A Proposed Surveillance Model, Mark Edward Dinubila

Earth & Environmental Sciences Theses - Archive

West Nile virus monitoring among mosquito populations in Tarrant County, Texas has been ongoing for more than 4 years. Coupled with RT-PCR Testing by the North Texas Regional Laboratory, Tarrant County and the cities that reside within its borders have been able to get an estimate of the location of the virus in their cities. As the participants select trap locations based on convenience, past experience and public interest, it should be beneficial to use geomorphological characteristics to dictate future trapping locations. This surveillance model using existing land maps of Tarrant County, past trap locations and their test results. The …

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Discrete Event Controller: Application Using Dynamic Resource Allocation, Abhishek Trivedi Aug 2007

Discrete Event Controller: Application Using Dynamic Resource Allocation, Abhishek Trivedi

Electrical Engineering Theses - Archive

This work consists of developing a Discrete Event Controller with Dynamic Resource Allocation, simulating it and than applying it on a test-bed using robots and static sensor nodes. These are the contributions made: 1. Interfacing the Garcia robot with Mica2/Cricket Sensor. 2. Implementing Obstacle Avoidance and Path planning on Garcia Robot for navigational purposes. 3. Localizing the Garcia Robot with the help of Cricket sensor and controlling it from the Base Station to perform assigned tasks. 4. Simulating a Discrete Event Controller which dynamically coordinates multiple missions and simultaneously performing dynamic resource assignment and solving any shared resource conflicts. 5. …

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