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Asilomar Conference on Signals, Systems & computers

作者： A. R. Calderbank S. D. Howard W. Moran A. Pezeshki M. Zoltowski Program Applied and Computational Mathematics Princeton University Princeton NJ USA Defence Science and Technology Organization Edinburgh Australia Electrical Engineering and Computer Science University of Melbourne Melbourne Australia Electrical and Computer Engineering Purdue University West Lafayette IN USA

Fully polarimetric radar systems are capable of simultaneously transmitting and receiving in two orthogonal polarizations. Instantaneous radar polarimetry exploits both polarization modes of a dually-polarized radar transmitter and receiver on a pulse by pulse basis, and can improve the radar detection performance and suppress range sidelobes . In this paper, we extend the use of instantaneous radar polarimetry for radar systems with multiple dually-polarized transmit and receive antennas. Alamouti signal processing is used to coordinate transmission of Golay pairs of phase codes waveforms across polarizations and multiple antennas. The integration of multi- antenna signal processing with instantaneous radar polarimetry can further improve the detection performance, at a computational cost comparable to single channel matched filtering.

关键词： Radar polarimetry Radar antennas Polarization Radar detection Radar signal processing Transmitters Receiving antennas Transmitting antennas Computational efficiency Matched filters

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Biological network epitomes via topological compression

Biological network epitomes via topological compression

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IEEE International Workshop on Genomic Signal Processing and Statistics (GENSIPS)

作者： Gil Alterovitz Marco F. Ramon Health Science and Technology/Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge USA Children's Hospital Informatics Program at the Harvard-MIT Division of Health Sciences and Technology / Harvard Medical School- Partners Center for Genetics and Genomics Boston 02115 USA.

High-throughput generation of new types of relational biological datasets is creating a demand for network-based signal processing and pattern recognition to provide new insights. Such networks are often too large to interpret visually and too complicated to be explained solely based on local topological properties. Just as signal processing and statistical techniques have been used in traditional, sequential-based biological datasets, so too are methodologies needed to automatically discern patterns in the huge, emerging networks. One way to do this is by transforming these very large networks into discernable epitomes, or abstracts, of the original networks. This work presents an approach for doing this via topological compression. Through capturing nodes' global topologies and subsequent compression, a new network epitome can be derived. Here, this is done with an E. Coli gene regulation network, resulting in biological findings that could not be derived from the local topology of the original network.

关键词： Biological information theory Network topology Genomics Bioinformatics Biomedical signal processing Compression algorithms Visualization Biology Gas insulated transmission lines computer science

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Gene lethality detection across biological network domains: Hubs versus stochastic global topological analysis

Gene lethality detection across biological network domains: ...

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IEEE International Workshop on Genomic Signal Processing and Statistics (GENSIPS)

作者： Gil Alterovitz Vinayak Muralidhar Marco F. Ramoni Health Science and Technology/Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge USA Harvard Medical School-Partners Center for Genetics and Genomics Boston USA Harvard-MIT Division of Health Sciences and Technology Children's Hospital Informatics Program Boston USA

In this paper, we investigate the properties of lethal genes in E. coli, our model organism. Topological analysis of networks of functional interactions among genes has shown that lethal genes share common local connectivity properties. In this paper, we analyze cellular networks across three domains. We show that a stochastic global topological analysis, via random walks, is more effective at predicting gene lethality than simply looking at local topology using the standard hub-based method. We also introduce the possibility of using metabolic pathways to understand lethal genes, as regulating these pathways is among one of the most important functions of the gene-encoded proteins. Additionally, we analyze lethal genes in terms of the Gene Ontology (GO) and find that the graph forms two highly connected clusters that are each GO enriched for specific terms. We also find that lethal metabolic regulators are extremely enriched. Finally, we provide applications of the work and avenues for future research.

关键词： Stochastic processes Proteins Organisms Humans Genomics Bioinformatics Databases Genetics Network topology Production

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Where the girls are: Applying an integrated marketing approach to attract girls into engineering programs

Where the girls are: Applying an integrated marketing approa...

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113th Annual ASEE Conference and Exposition, 2006

作者： Pyke, Pat Aburusa-Lete, Leandra Budinoff, Christa Hampikian, Janet Luque, Michael Schrader, Cheryl Taylor, Michelle Boise State University United States College of Engineering Boise State University United States Visioneering LLC NASA Goddard Space Flight Center United States Academic Affairs Boise State University United States Materials Science and Engineering Department Boise School District United States Boise Science and Technology Girls Program United States College of Engineering Department of Electrical and Computer Engineering Boise State University United States Micron Technology Inc. United States

The steady national decline in women engineering students persists despite a plethora of programs and camps at engineering colleges around the country aimed at attracting girls into engineering and technical fields.1Discussions about this decline often suggest that influential cultural, media and marketing images may affect girls' career choices in ways that steer girls in directions other than engineering. When planning the first-ever overnight engineering camp for high school girls hosted at Boise State University, the planning team decided to embrace marketing methods to create realistic images about engineering that are relevant to the lives of girls. The planning team represented a partnership among Micron technology, the southwest Idaho Society of Women Engineers section, Boise public school staff, and Boise State University faculty, staff and graduate students. The team defined four messages that formed the foundation for curriculum development and communications with prospective participants: 1) Engineers help the world;2) Engineers think creatively;3) Engineers enjoy working with other people;and 4) Engineers earn a good living. Demand for the "e-Girls" camp far exceeded expectations, and student evaluations at the end of the program indicated success at affecting the girls' understanding, perceptions and interest about engineering careers. The program will continue in 2006. © American Society for Engineering Education, 2006.

关键词： Marketing

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A connection-oriented telecommunications disaster management model using mobile GIS

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International Journal of Mobile Communications 2006年第1期4卷 63-81页

作者： Choi, Young B. Blackburn, Jonathan M. Seo, Hyewon Information Technology and Management Science Program College of Business James Madison University 800 South Main Street Harrisonburg VA 22807-0001 United States Computer Science Program James Madison University 800 South Main Street Harrisonburg VA 22807-0001 United States Accounting and Information Technology James Madison University 800 South Main Street Harrisonburg VA 22807-0001 United States Information Technology and Management Science Program James Madison University Harrisonburg VA United States James Madison University United States

Mobile Geographic Information Systems are a versatile extension of traditional GIS and can provide GIS data between the field and the office. This paper addresses the challenges imposed on telecommunications infrastructure management by disaster events. MGIS are presented as tools that provide meaningful real-time communication between field workers and management. Copyright © 2006 Inderscience Enterprises Ltd.

关键词： Geographic information systems

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Predicting Probability of Mortality in the Neonatal Intensive Care Unit

Predicting Probability of Mortality in the Neonatal Intensiv...

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Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Dajie Zhou Monique Frize Program of Systems Science University of Ottawa Ottawa ONT Canada Department of Systems and Computer Engineering Carleton University and the School of Information Technology and Engineering University of Ottawa Ottawa ONT Canada

Artificial neural networks can be trained to predict outcomes in a neonatal intensive care unit (NICU). This paper expands on past research and shows that neural networks trained by the maximum likelihood estimation criterion will approximate the `a posteriori probability' of NICU mortality. A gradient ascent method for the weight update of three-layer feed-forward neural networks was derived. The neural networks were trained on NICU data and the results were evaluated by performance measurement techniques, such as the Receiver Operating Characteristic Curve and the Hosmer-Lemeshow test. The resulting models applied as mortality prognostic screening tools are presented

关键词： Pediatrics Neural networks Artificial neural networks Maximum likelihood estimation Measurement Testing Feedforward systems Feedforward neural networks Resource management Cities and towns

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Making Static Online Teaching Materials Be Flexible to Learners by Reconstructing Its Hypermedia Structures Automatically

Making Static Online Teaching Materials Be Flexible to Learn...

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International Conference on Information technology Based Higher Education and Training, ITHET

作者： Athena Hsieh Rita Kuo Chang-Kai Hsu Maiga Chang Jia-Sheng Heh Department of Information and Computer Engineering Chung Yuan Christian University Chungli Taiwan Department of Electronic Engineering Chung Yuan Christian University Chungli Taiwan Program Office of National Science and Technology Chungli Taiwan

Many teachers and researchers put their teaching materials on the Internet for students to read in recent years. This sort of teaching materials could be seen as static because students can only follow the learning sequence made by teachers in advance. The goal of this paper is trying to develop a tool, K-Navi toolbar, to parse and rebuild teaching materials' hypermedia structures according to the concept relations and extracted rules automatically. K-Navi toolbar first uses the formal concept analysis (FCA) to parse the whole set of teaching materials and gets the embedded concept relations between each of two instructional documents; then uses the association rule methodology (ARM) to extract the rules from the concept lattices; and, finally rebuilds the hypermedia structure of the instructional document read by the student automatically. K-Navi toolbar adds related concept hyperlinks (or says links to other knowledge pieces) into the specific position on the instructional hypermedia document automatically when a student asks the document resource. A student then will be able to dig related knowledge pieces via these relevant hyperlinks.

关键词： Internet Association rules US Department of Transportation Lattices Electronic learning Navigation computer science education Councils Materials science and technology Electronic mail

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Capturing Cellular Communication with Guided Electrode Network on a Silicon Integrated Circuit Chip

Capturing Cellular Communication with Guided Electrode Netwo...

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2006 8th International Conference on Solid-State and Integrated Circuit technology

作者： Mansun Chan Chi-Kong Yeung Yijin Wang Jin He Sven Ingebrandt Andreas Offenhaeusser Dept.of Electronic and Computer Engineering Hong Kong University of Science & Technology Bioengineering Graduate Program Hong Kong University of Science & Technology Institute of Microelectronic Peking University Juelich Research Center Institute for Thin Films and Interfaces(ISG-2)Leo-Brandt Str.52425 JuelichGermany

ISBN: (纸本)1424401607

This paper describes the development of a Multi-Electrode Array(MEA)with Guided Network for Cell-to-Cell Communication Transduction using a standard integrated circuit(IC) fabrication *** conventional electronic system,bio-system requires a special handling environment that is uncommon in conventional IC *** work presented here demonstrated the interaction between electrically active cells such as neuron and cardiac cells and an IC based *** a carefully designed array,and ionic action of a cell, extracellular signals can be captured and imaged.

关键词： Capturing Cellular Communication with Guided Electrode Network on a Silicon Integrated Circuit Chip

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Applying knowledge map to diagnose students' misconception and provide suitable teaching materials

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WSEAS Transactions on computers 2006年第1期5卷 133-140页

作者： Li, Shao-Chun Chang, Jyh-Cheng Chang, Maiga Heh, Jia-Sheng Dept. of Information and Computer Engineering Chung-Yuan Christian Univ. 200 Chung-Pei Rd. Chung-Li 32023 Taiwan National Science and Technology Program for e-Learning in Taiwan 300 Jhongda Rd. Chung-Li 32001 Taiwan

Students in the web-based e-learning environment might have their own learning paths due to the structure of the world-wide web. Students can choose suitable learning materials according to their different learning style. There are many researches about learning diagnosis in distance education and the main objective of these researches is to improve the learning effects of students. This research proposes a diagnosis mechanism based on the Knowledge Map and implements a feedback system in order to provide the remedy teaching materials in sequence.

关键词： Knowledge representation

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MEMS and microsystems courses with national and international dissemination

MEMS and microsystems courses with national and internationa...

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113th Annual ASEE Conference and Exposition, 2006

作者： McAfee, Leo Najafi, Khalil Gianchandani, Yogesh Wise, Kensall D. Maharbiz, Michel M. Aslam, Dean Bergstrom, Paul Friedrich, Craig University of Michigan United States IEEE ASEE Department of Electrical Engineering and Computer Science University of Michigan United States MI United States WIMS ERC United States EECS Department College of Engineering Interdisciplinary Professional Degree Program in Integrated Microsystems Department of Electrical Engin-eering and Computer Science Department of Manufacturing Technology Department of Biomedical Engineering AIMBE United States United States National Academy of Engineering United States Electrical Engineering and Computer Science Chemical and Biomedical Engineering Departments University of Michigan Ann Arbor United States Wireless Integrated Microsystems NSF ERC National Nanotechnology Initiative Network Michigan State University United States Engineering Research Center for Wireless Integrated MicroSystems United States Michigan Technological University United States Michigan Technological University Houghton MI United States Microfabrication Facility Michigan Tech. United States

The Wireless Integrated MicroSystems (WIMS) Engineering Research Center (ERC) has developed a broad comprehensive MEMS and microsystem curriculum suitable for upper-level undergraduate students, graduate students, and industry professionals. Five core courses were in the initial curriculum design. The design had flexibility that invited development of other core courses, as well as related technical electives and breadth electives. The core courses provide instruction in MEMS, Microsystems, major design and laboratory measurements, and societal impact. The course enrollments have been strong. A master of engineering in integrated microsystems degree program was developed so that industry professionals would have a focused set of coursework, while providing flexibility that would permit custom tailoring of the total course package to serve specific needs. Distance education dissemination of the courses as whole courses, or as discrete portions of course materials, was intended to be available;that goal has been realized. The core courses originate at the University of Michigan (UM), and have been distributed to Michigan State University (MSU), Michigan Technological University (MTU), Howard University (HU), University of Puerto Rico - Mayaguez (UPRM), and Western Michigan University (WMU). Rochester Institute of technology (RIT) has used materials from the UM core courses in its offerings. Other institutions that have used the course web-streaming video and course materials are University of Lille, Darmstadt University, and Middle East Technical University. © American Society for Engineering Education, 2006.

关键词： Curricula

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