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2002

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Articles 1171 - 1200 of 1792

Full-Text Articles in Engineering

Modeling The Inhibition Of The Bacterial Reduction Of U(Vi) By Β-Mno2(S), Chongxuan Liu, John M. Zachara, James K. Fredrickson, David W. Kennedy, Alice Dohnalkova Jan 2002

Modeling The Inhibition Of The Bacterial Reduction Of U(Vi) By Β-Mno2(S), Chongxuan Liu, John M. Zachara, James K. Fredrickson, David W. Kennedy, Alice Dohnalkova

United States Department of Energy: Publications

Pyrolusite (β-MnO2(s)) was used to assess the influence of a competitive electron acceptor on the kinetics of reduction of aqueous uranyl carbonate by a dissimilatory metal-reducing bacterium (DMRB), Shewanella putrefaciens strain CN32. The enzymatic reduction of U(VI) and β-MnO2(s) and the abiotic redox reaction between β-MnO2(s) and biogenic uraninite (UO2(s)) were independently investigated to allow for interpretation of studies of U(VI) bioreduction in the presence of β-MnO2(s). Uranyl bioreduction to UO2(s) by CN32 with H2 as the electron donor followed Monod kinetics, with a maximum specific reduction rate of 110 µM/h/10 …


How We Got To Coney Island: The Development Of Mass Transportation In Brooklyn And Kings County, Brian Cudahy Jan 2002

How We Got To Coney Island: The Development Of Mass Transportation In Brooklyn And Kings County, Brian Cudahy

New York State City & Regional

How We Got to Coney Island is the definitive history of mass transportation in Brooklyn. Covering 150 years of extraordinary growth, Cudahy tells the complete story of the trolleys, street cars, steamboats, and railways that helped create New York’s largest borough---and the remarkable system that grew to connect the world’s most famous seaside resort with Brooklyn, New York City across the river, and, ultimately, the rest of the world. Includes tables, charts, photographs, and maps.


Ole Miss Engineer 2002 Jan 2002

Ole Miss Engineer 2002

Ole Miss Engineer

No abstract provided.


Model Scheme A Good Fit For C4isr, Andreas Tolk Jan 2002

Model Scheme A Good Fit For C4isr, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

No abstract provided.


Research Highlightsfrom A Large Scale Residential Monitoring Study In A Hot Climate, Florida Solar Energy Center, Danny Parker Jan 2002

Research Highlightsfrom A Large Scale Residential Monitoring Study In A Hot Climate, Florida Solar Energy Center, Danny Parker

FSEC Energy Research Center®

This load research project by a large utility has monitored 204 residences in Central Florida, collecting detailed electricity end-use load data. In each home, 15-minute electric demand data is obtained on total electric power, space heating, cooling, water heating, dryers, cooking and pool energy use. Interior and exterior temperatures were also recorded. This is similar to other detailed end-use data monitored in the U.S. Pacific Northwest in the ELCAP project (Pratt et al., 1989) and the PG&E Appliance Metering Project (Brodsky and McNicoll, 1987). However these data are of a more recent vintage and from a cooling dominated climate.

The …


Sunsmart Community Partnerships: Summary And Lessons Learned Report, Florida Solar Energy Center, Jennifer Szaro Jan 2002

Sunsmart Community Partnerships: Summary And Lessons Learned Report, Florida Solar Energy Center, Jennifer Szaro

FSEC Energy Research Center®

Through a working partnership with the Florida Municipal Electric Association (FMEA), the Florida Solar Energy Center (FSEC), the Florida Municipal Power Agency (FMPA), the Legal Environmental Assistance Foundation (LEAF), and FMEA member utilities, the SunSmart program offers a unified, low-cost solution to providing municipal electric customers with a solar energy option. It also provides its member utilities with a high level of technical and administrative support to alleviate concerns about working with an unfamiliar electric generation technology. It relies on a core team to develop a standardized marketing and public outreach plan which can be utilized by all participants, and …


Summer 2002, 90.9 Wmpg Fm Jan 2002

Summer 2002, 90.9 Wmpg Fm

WMPG Program Guides

Newspaper format


Nebraska Summary 387: John Deere 6420 Autoquad Diesel 24-Speed, Nebraska Tractor Test Lab Jan 2002

Nebraska Summary 387: John Deere 6420 Autoquad Diesel 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA

The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.

EXPLANATION OF THE TEST PROCEDURES

Purpose

The purpose of …


Acoustic Competition In The Gulf Toadfish Opsanus Beta: Acoustic Tagging, Robert F. Thorson, Michael L. Fine Jan 2002

Acoustic Competition In The Gulf Toadfish Opsanus Beta: Acoustic Tagging, Robert F. Thorson, Michael L. Fine

Biology Publications

Nesting male gulf toadfish Opsanus beta produce a boatwhistle advertisement call used in male–male competition and to attract females and an agonistic grunt call. The grunt is a short-duration pulsatile call, and the boatwhistle is a complex call typically consisting of zero to three introductory grunts, a long tonal boop note, and zero to three shorter boops. The beginning of the boop note is also gruntlike. Anomalous boatwhistles contain a short-duration grunt embedded in the tonal portion of the boop or between an introductory grunt and the boop. Embedded grunts have sound-pressure levels and frequency spectra that correspond with those …


On The Optimal Choice Of Quality Metric In Image Compression, Olga Kosheleva, Vladik Kreinovich, Yeung Yam Jan 2002

On The Optimal Choice Of Quality Metric In Image Compression, Olga Kosheleva, Vladik Kreinovich, Yeung Yam

Departmental Technical Reports (CS)

No abstract provided.


Open-Ended Configurations Of Radio Telescopes: Towards Optimal Design, Vladik Kreinovich, Scott A. Starks, Olga Kosheleva, Andrei Finkelstein Jan 2002

Open-Ended Configurations Of Radio Telescopes: Towards Optimal Design, Vladik Kreinovich, Scott A. Starks, Olga Kosheleva, Andrei Finkelstein

Departmental Technical Reports (CS)

The quality of radio astronomical images drastically depends on where we place the radio telescopes. During the design of the Very Large Array, it was empirically shown that the power law design, in which n-th antenna is placed at a distance n^b from the center, leads to the best image quality. In this paper, we provide a theoretical justification for this empirical fact.


Open-Ended Configurations Of Radio Telescopes: Geometrical Analysis, Vladik Kreinovich, Scott A. Starks, Dima Iourinski, Olga Kosheleva, Andrei Finkelstein Jan 2002

Open-Ended Configurations Of Radio Telescopes: Geometrical Analysis, Vladik Kreinovich, Scott A. Starks, Dima Iourinski, Olga Kosheleva, Andrei Finkelstein

Departmental Technical Reports (CS)

No abstract provided.


Was There Satan's Face In The World Trade Center Fire? A Geometric Analysis, Vladik Kreinovich, Dima Iourinski Jan 2002

Was There Satan's Face In The World Trade Center Fire? A Geometric Analysis, Vladik Kreinovich, Dima Iourinski

Departmental Technical Reports (CS)

Some photos of the 2001 World Trade Center fire reveal a "face" in the smoke which was interpreted, by some people, as the face of Satan. Most journalists believe, however, that the visible smoke configuration can be explained by natural processes, and that the visible "face" is similar to animal shapes that are sometimes observed in the clouds. In this paper, we present a simple geometric analysis that supports this natural-process explanation.


On Symmetric Solution Sets, Goetz Alefeld, Vladik Kreinovich, Guenter Mayer Jan 2002

On Symmetric Solution Sets, Goetz Alefeld, Vladik Kreinovich, Guenter Mayer

Departmental Technical Reports (CS)

Given an n x n interval matrix [A] and an interval vector [b] with n components we present an overview on existing results on the solution set S of linear systems of equations Ax=b with symmetric matrices A from [A] and vectors b from [b]. Similarly we consider the set E of eigenpairs associated with the symmetric matrices A from [A]. We report on characterizations of S by means of inequalities, by means of intersection of sets, and by an approach which is generalizable to more general dependencies of the entries. We also recall two methods for enclosing S by …


Probability Of Implication, Logical Version Of Bayes Theorem, And Fuzzy Logic Operations, Hung T. Nguyen, Masao Mukaidono, Vladik Kreinovich Jan 2002

Probability Of Implication, Logical Version Of Bayes Theorem, And Fuzzy Logic Operations, Hung T. Nguyen, Masao Mukaidono, Vladik Kreinovich

Departmental Technical Reports (CS)

Logical inference starts with concluding that if B implies A, and B is true, then A is true as well. To describe probabilistic inference rules, we must therefore define the probability of an implication "A if B". There exist two different approaches to defining this probability, and these approaches lead to different probabilistic inference rules: We may interpret the probability of an implication as the conditional probability P(A|B), in which case we get Bayesian inference. We may also interpret this probability as the probability of the material implication "A or not B", in which case we get different inference rules. …


Computational Complexity Of Planning With Discrete Time And Continuous State Variables, Chitta Baral, Vladik Kreinovich Jan 2002

Computational Complexity Of Planning With Discrete Time And Continuous State Variables, Chitta Baral, Vladik Kreinovich

Departmental Technical Reports (CS)

Traditionally, most planning research in AI was concentrated on systems whose state can be characterized by discrete-valued fluents. In many practical applications, however, we want to control systems (like robots) whose state can only be described if we used continuous variables (like coordinates). Planning for such systems corresponds, crudely speaking, to Level 2 of the planing language PDDL2.1. In this paper, we analyze the computational complexity of such planning problems.


Logserver Monitor For Managing Log Messages Of Applications, Lilin Zhu Jan 2002

Logserver Monitor For Managing Log Messages Of Applications, Lilin Zhu

Theses Digitization Project

This project is a graphical user interface for managing log information. Logging is an important componet of a software development cycle as well as for diagnostics of performance and monitoring of the software after deployment. The LogServer Monitor provides a graphical user interface for the display and management of logged information from a distributed environment.


Web-Based Interactive Self-Evaluation System For Computer Science In Generic Tutorial System For The Sciences Project, Supachai Praritsantik Jan 2002

Web-Based Interactive Self-Evaluation System For Computer Science In Generic Tutorial System For The Sciences Project, Supachai Praritsantik

Theses Digitization Project

The goal of this master project is to promote and facilitate the use of new web-based and Java-based technologies in the development of self-evaluation systems for computer science; in particular, analysis of sorting algorithms.


Combined Beamforming And Space-Time Block Coding With A Sparse Array Antenna, Robert H. Morelos-Zaragoza, Mohammad Ghavami Jan 2002

Combined Beamforming And Space-Time Block Coding With A Sparse Array Antenna, Robert H. Morelos-Zaragoza, Mohammad Ghavami

Faculty Publications

We continue our investigation of joint beamforming and transmit diversity with space-time block coding. In particular, the performance of a four-element array antenna is considered, in the context of an indoor wireless communication system. The main contribution is to show that transmit diversity may be practically achieved, even with correlated beams produced by a sparse array antenna.


Effects Of Welding Electropolished 316l Stainless Steel As Used In Ultra-Pure Fluid Delivery Systems For The Semiconductor And Pharmaceutical Industries, Guna S. Selvaduray, S. Trigwell Jan 2002

Effects Of Welding Electropolished 316l Stainless Steel As Used In Ultra-Pure Fluid Delivery Systems For The Semiconductor And Pharmaceutical Industries, Guna S. Selvaduray, S. Trigwell

Faculty Publications

In the semiconductor and pharmaceutical industries, care is taken to prevent any contribution to product contamination or corrosion from the fluid delivery systems. Electropolished 316L stainless steel has become the industry standard due to its superior corrosion resistance. However, welding of the tubing often leads to discoloration in the heat affected zone (HAZ) which can lead to corrosion. Electropolished specimens from various lots of 316L stainless steel tubing were welded under identical parameters, but with varying concentrations of oxygen leaked into the argon purge gas during the welding, simulating on-site welding conditions. Various levels of discoloration were observed in the …


Java Prototype Of Hypercard Bibliography Past Implementation And Present Choices, Neeta Reddy Jan 2002

Java Prototype Of Hypercard Bibliography Past Implementation And Present Choices, Neeta Reddy

Theses Digitization Project

This project was started with JDK Version 1.0 and was later upgraded to version JDK Version 1.2.2, to create a graphical user interface using the Abstract Window Toolkit (AWT) to a HyperCard bibliography of software engineering. The bibliographic index tool is designed to facilitate searching for text and is run as a Java applet. It presents an alphabetically ordered list of author names and subjects. With the bibliography index tool one can manipulate a bibliographic list directly over the World Wide Web on a computer that lists electronic bibliographies.


Personal Software Process (Psp) Scriber, Heng-Jui Tsao Jan 2002

Personal Software Process (Psp) Scriber, Heng-Jui Tsao

Theses Digitization Project

Personal Software Process (PSP) Scriber is a Web-based software engineering tool designed to implement an automatic system for performing PSP. The basis of this strategy is a set of tools to facilitate collection and analysis of development data. By analyzing the collected data, the developer can make informed, accurate decisions about their individual development effort.


Mobile Order Entry System Based On The Wireless Technology, Sumit Imsuksri Jan 2002

Mobile Order Entry System Based On The Wireless Technology, Sumit Imsuksri

Theses Digitization Project

The sales representatives primary duties are to attract wholesale and retail buyers and purchasing agents to their merchandise, and to address any of their client's questions or concerns. Aided by a laptop computer connected to the Internet, they can access the customer information and sell products to their customer immediately. This project, a Mobile Order Entry System using cellphones, will give sales representatives as state-of-the-art alternative in accessing anf selling products to their customers through cell phones instead of using laptop computers.


University Of Texas At Tyler Catalog, 2002-2004, University Of Texas At Tyler Jan 2002

University Of Texas At Tyler Catalog, 2002-2004, University Of Texas At Tyler

Catalogs

Archives Space instance: https://archivesspace.uttyler.edu/repositories/2/archival_objects/22361


Wireless Lans, Jack Glas, Mihai Banu, Joachim Hammerschmidt, Vladimir I. Prodanov, Peter Kiss Jan 2002

Wireless Lans, Jack Glas, Mihai Banu, Joachim Hammerschmidt, Vladimir I. Prodanov, Peter Kiss

Electrical Engineering

Wireless LANs based on the IEEE 802.11 standard have achieved wide customer acceptance in the enterprise environment. They are expected to continue to expand in popularity and become ubiquitous communication systems even in private and public places. This paper discusses the basics of the wireless LAN physical layer, focusing on radio transceiver specifications and design options.


Automatic Speechreading With Applications To Human-Computer Interfaces, Xiaozheng Zhang, Charles C. Broun, Russell M. Mersereau, Mark A. Clements Jan 2002

Automatic Speechreading With Applications To Human-Computer Interfaces, Xiaozheng Zhang, Charles C. Broun, Russell M. Mersereau, Mark A. Clements

Electrical Engineering

There has been growing interest in introducing speech as a new modality into the human-computer interface (HCI). Motivated by the multimodal nature of speech, the visual component is considered to yield information that is not always present in the acoustic signal and enables improved system performance over acoustic-only methods, especially in noisy environments. In this paper, we investigate the usefulness of visual speech information in HCI related applications. We first introduce a new algorithm for automatically locating the mouth region by using color and motion information and segmenting the lip region by making use of both color and edge information …


Parameter Estimation For Transformer Modeling, Sung Don Cho Jan 2002

Parameter Estimation For Transformer Modeling, Sung Don Cho

Dissertations, Master's Theses and Master's Reports - Open

Large Power transformers, an aging and vulnerable part of our energy infrastructure, are at choke points in the grid and are key to reliability and security. Damage or destruction due to vandalism, misoperation, or other unexpected events is of great concern, given replacement costs upward of $2M and lead time of 12 months. Transient overvoltages can cause great damage and there is much interest in improving computer simulation models to correctly predict and avoid the consequences.

EMTP (the Electromagnetic Transients Program) has been developed for computer simulation of power system transients. Component models for most equipment have been developed and …


Using The Web To Integrate Ethics In The Engineering Curriculum, David Haws Jan 2002

Using The Web To Integrate Ethics In The Engineering Curriculum, David Haws

Civil Engineering Faculty Publications and Presentations

With a crowded engineering curriculum, it's difficult to justify three credit hours for a new course in the comprehensive instruction in applied ethics. Partial coverage of ethics in undergraduate engineering seminars, or the "Introduction to Engineering" course also has obvious drawbacks. In contrast, a modular integration of ethics throughout the engineering curriculum, although it demands coordinated coverage and relevant links to many diverse computational courses, seems like a logical alternative. This paper will discuss a web-based module created to introduce the ethical perspective of Nietzschean perfectionism to engineering undergraduates in a junior-level Civil Engineering course in Structural Analysis. I will …


Javaserver Page, Java Servlet And Javabean Technology: Online Real Estate Company, Kevin Tzu-Jung Chen Jan 2002

Javaserver Page, Java Servlet And Javabean Technology: Online Real Estate Company, Kevin Tzu-Jung Chen

Theses Digitization Project

This project will simulate an online real estate company using JSP, Java Servlet and JavaBean technology.


Wireless Messaging And Project Management System, Bhrigu Celly Jan 2002

Wireless Messaging And Project Management System, Bhrigu Celly

Theses Digitization Project

Wireless is an important part of the future and utilizing the wireless technology in project management is a great tool. This project is a messaging system designed using WAP and Java Server pages, as both of them are the technologies of the future. The project puts together a tool to help in project management made with the use of Java Server Pages and MySQL as the backend database. It uses Wireless Markup Language as the basic language for the cellular phones and the hand held wireless devices. The prototype has been modeled on project planning for power plants done by …