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IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference

作者： Paulo F. Silva Carlos B. Westphall Carla M. Westphall Marcos Dias de Assuncao Network and Management Laboratory Post-Graduate Program in Computer Science Federal University of Santa Catarina Florianopolis Brazil Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne VIC Australia

Intrusion detection systems (IDSs) have been substantially improved in recent past. However, network attacks have become more sophisticated and increasingly complex: many of current attacks are coordinated and originated in multiple networks. To detect these attacks, IDSs need to obtain information on network events from multiple networks or administrative domains. This work demonstrates that a Distributed IDS (DIDS) can be composed of existing IDSs, improving the detection of misuses in a multiple network environment. We use a grid middleware for creating a service-based intrusion detection grid. We demonstrate through experimental results that the proposed DIDS allows the integration of heterogeneous existing IDSs and improves the detection of attacks by exploring the synergy between existing IDSs.

关键词： Grid computing Computer architecture Intrusion detection Resource management Laboratories Computer science Electronic mail Middleware Computer network management engineering management

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A CAN and OSEK NM based siren for automobiles

A CAN and OSEK NM based siren for automobiles

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2007 IEEE International Conference on Networking, Sensing and Control, ICNSC'07

作者： Qiao, Xin Wang, Zhixue Sun, Yuan He, Feng Wang, Fei-Yue IEEE Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences CO 100080 Beijing China Institute of Computing Chinese Academy of Sciences CO 100080 Beijing China Key Laboratory for Complex Systems and Intelligence Science Chinese Academy of Sciences Beijing China Program for Advanced Research in Complex Systems Department of Systems and Industrial Engineering University of Arizona Tucson AZ 85719 United States

ISBN: (纸本)1424410762

Today, more and more Electronic Control Units have been installed in vehicle, and Controller Area Network is one of the most widely used networks to connect these ECUs, also the architecture of OSEK is increasingly employed into the design of individual ECU and the network. In this paper, we propose a new framework to design the ECU with limited-storage-space. In the framework, an infinite cycle acts as a mainframe, and the code conforming to OSEK NM is inserted into the cycle. A siren of vehicle is developed with this method, and a Hardware-In-Loop test is accomplished. The results show that the framework is available, and the real-time performance of the siren is satisfied. © 2007 IEEE.

关键词： Intelligent vehicle highway systems

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Special session - creation of the “Milwaukee School of Magic”

Special session - creation of the “Milwaukee School of Magi...

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Frontiers in Education (FIE) Conference

作者： Karen L. Hess Mary-Angela Papalaskari Randy Weinstein Robert Styer Tom Way Anthony Lagalante Science & Theatre Magic Program Villanova University Villanova PA USA Department of Computing Sciences Villanova University USA Department of Engineering Villanova University USA Department of Mathematical Sciences Villanova University USA Department of Chemistry Villanova University

The objective of this special session is to create the "Milwaukee School of Magic" so that participants can discover the value of incorporating drama and magical illusions into a creative science learning environment. Villanova University's Science & Theatre Magic program, now in its third year, has successfully created a dramatic and creative learning environment with a unique approach. The strengths and accomplishments of this program are reviewed and discussed in the session entitled engineering the Magic School: Creativity and Innovation in Context. See also PIVOTS: Service Learning at the Science, Theatre & Magic Boundary by Papalaskari et al in FIE 2006. This session will be valuable for engineering educators interested in integrating multi-disciplinary STEM teaching with creative and performing arts. Participants will experience first hand how a well chosen theme and the right combination of constraints and open- ended problems can trigger the imagination and provide a powerful motivating force for exploration, group work, innovation, and design that can transcend any barriers associated with diverse cultural, social, or discipline/specialization backgrounds. Participants will easily be able to apply concepts presented to make their own learning environments equipped to improve technical skills as well as build teams among culturally, economically, and ethnically diverse populations of students.

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Multimedia tutorials for minority non-english speaking students and software engineering methods for the same

Multimedia tutorials for minority non-english speaking stude...

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114th Annual ASEE Conference and Exposition, 2007

作者： Baggs, Rhoda Kasza, Tamas Fraites, Patrice Pravata, Ian Witmer, Kohl Shaykhian, Gholam Ali Florida Institute of Technology United States MS in Computer Information Systems Florida Institute of Technology's University College United States International Association of Computer Information Systems Association of Computing Machinery and Several ACM SIGs MS CIS Program F.I.T. Harris Corp. United States NASA United States Engineering Directorate United States Bethune Cookman College Daytona Beach FL United States Operations Research Florida Institute of Technology United States United States Minorities in Engineering Division of ASEE

Multimedia tutorials available online are becoming popular as a means of providing canned explanations for difficult material for brick and mortar classes and online courses. The availability of free multimedia products like Flashplayer by Macromedia ©and the increasing proliferation of high speed access also provides the perfect set of circumstances to produce and make obtainable tutorials for K-12 children who may be especially challenged in some way. For instance, these tutorials would be appropriate and helpful for non-English speaking children to help them learn English and acclimate to their new American environment. This is the perfect time with the increasing Hispanic population within the borders of the United States. Students in the Computer Sciences and Computer Information Systems programs at Florida Institute of Technology have been working on such tutorials that have video, animation, audio, text, and images to help get across new ideas and topics to school age children. At the same time, software engineering methods for designing such tools are being developed and explored. The scope of this research is being extended to include audio in multiple languages for non-English speaking students. © American Society for engineering Education, 2007.

关键词： Multimedia services

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Lattice Boltzmann Algorithms for Fluid Turbulence

Lattice Boltzmann Algorithms for Fluid Turbulence

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DoD High Performance computing Modernization program Users Group

作者： G. Vahala J. Yepez M. Soe L. Vahala S. Ziegeler Department of Physics The College of William and Mary Williamsburg VA USA U.S. Air Force Research Laboratory MA USA US Air Force Research Laboratory (AFRL) Hanscom Field MA Department of Mathematics and Science Rogers State University Claremore OK USA Department of Electrical & Computer Engineering Old Dominion University Norfolk VA USA High Performance Computing Modernization Program Mississippi State University MS

Lattice Boltzmann algorihms are a mesoscopic representation of nonlinear continuum physics (like Navier-Stokes, magnetohydro dynamics (MHD), Gross- Pitaevskii equations) which are ideal for parallel supercomputers because they transform the difficult nonlinear convective macroscopic derivatives into purely local moments of distribution functions. The macroscopic nonlinearities are recovered by relaxation distribution functions in the collision operator whose dependence on the macroscopic velocity is algebraically nonlinear and thus purely local. Unlike standard computational fluid dynamics codes, there is no loss in parallelization in handling arbitrary geometric boundaries, e.g., using bounce-back rules from kinetic theory. By encoding detailed balance into the collision operator through the introduction of discrete H-function, the lattice Boltzmann algorithm can be made unconditionally stable for arbitrary high Reynolds numbers. It is shown that this approach is a special case of a quantum lattice Boltzmann algorithm that entangles local qubits through unitary collision operators and which is ideally parallelized on quantum computer architectures. Here we consider turbulence simulations using 2,048 PEs on a 1,6003-spatial grid. A connection is found between the rate of change of enstrophy and the onset of laminar-to- turbulent flows.

关键词： Lattice Boltzmann methods Magnetohydrodynamics Distribution functions Quantum computing Quantum entanglement Physics Fluid dynamics Navier-Stokes equations Nonlinear equations Supercomputers

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A feature recognition approach for mold machining

A feature recognition approach for mold machining

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19th International Conference on Computer Applications in Industry and engineering, CAINE 2006

作者： Ding, Xiaoming Zhang, Liping Lu, Yiqiang Jiang, Ridong Engineering Software Program Institute of High Performance Computing I Science Park Road Singapore Science Park II 117528 Singapore

ISBN: (纸本)9781604236750

In mold machining, the surfaces that form the profile of the plastic part and the parting surfaces are generally machined with the same setup and machining process. As the machining accuracy requirements for them are the same, they are usually considered as a single machining feature when generating CNC tool paths. However, different machining accuracies may be required for features such as holes and pockets of lifter, insert, ejector and cooling. These features may be machined with different setups and processes. There are currently very few researches on how to identify these features for mold machining. This paper introduces a novel feature recognition method. With this method, the profiles that form the plastic product profile and parting surfaces are identified as a single feature. The holes and pockets of lifter, insert, ejector and cooling are identified from their functionality properties. The system has been tested with several industrial parts. It is proven that the developed system can identify these holes and pockets automatically and efficiently.

关键词： Plastic parts

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The generation challenge programme platform: Semantic standards and workbench for crop science

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International Journal of Plant Genomics 2008年第unknown期2008卷 369601页

作者： Bruskiewich, Richard Senger, Martin Davenport, Guy Ruiz, Manuel Rouard, Mathieu Hazekamp, Tom Takeya, Masaru Doi, Koji Satoh, Kouji Costa, Marcos Simon, Reinhard Balaji, Jayashree Akintunde, Akinnola Mauleon, Ramil Wanchana, Samart Shah, Trushar Anacleto, Mylah Portugal, Arllet Ulat, Victor Jun Thongjuea, Supat Braak, Kyle Ritter, Sebastian Dereeper, Alexis Skofic, Milko Rojas, Edwin Martins, Natalia Pappas, Georgios Alamban, Ryan Almodiel, Roque Barboza, Lord Hendrix Detras, Jeffrey Manansala, Kevin Mendoza, Michael Jonathan Morales, Jeffrey Peralta, Barry Valerio, Rowena Zhang, Yi Gregorio, Sergio Hermocilla, Joseph Echavez, Michael Yap, Jan Michael Farmer, Andrew Schiltz, Gary Lee, Jennifer Casstevens, Terry Jaiswal, Pankaj Meintjes, Ayton Wilkinson, Mark Good, Benjamin Wagner, James Morris, Jane Marshall, David Collins, Anthony Kikuchi, Shoshi Metz, Thomas McLaren, Graham Van Hintum, Theo Crop Research Informatics Laboratory International Rice Research Institute (IRRI) DAPO Box 7777 Metro Manila Philippines Crop Research Informatics Laboratory International Maize and Wheat Improvement Center (CIMMYT) DF 06600 Mexico Apdo. Postal 6-641 Mexico Centre International de Recherche Agronomique Pour le Développement (CIRAD) 34398 Montpellier Cedex 5 Avenue Agropolis France Bioversity International 00057 Maccarese (Fiumicino) Rome Via dei Tre Denari 472/a Italy National Institute for Agrobiological Sciences (NIAS) Tsukuba Ibaraki 305-8602 Kannondai 2-1-2 Japan Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA) Brasilia DF 70770-900 Parque Estaçao Biologia Final W5 Norte Brazil Centro Internacional de la Papa (CIP) Lima 12 Avenida La Molina 1895 La Molina Peru International Crops Research Institute for the Semi-Arid Tropics Patancheru Andhra Pradesh 502324 India International Center for Agricultural Research in the Dry Areas Aleppo P.O. Box 5466 Syrian Arab Republic National Center for Genetic Engineering and Biotechnology 113 Thailand Science Park Klong Luang Pathumthani 12120 Phahonyothin Road Klong 1 Thailand Institute of Computer Science College of Arts and Sciences University of the Philippines Los Banos Laguna 4031 Philippines Department of Computer Science University of the Philippines Melchor Hall Diliman Quezon City 1101 Philippines National Center for Genome Resources Santa Fe NM 87505 2935 Rodeo Park Drive East United States Scottish Crop Research Institute Invergowrie Dundee DD2 5DA United Kingdom Department of Plant Breeding Cornell University Ithaca NY 14853 United States African Centre for Gene Technologies Lynnwood Ridge 0040 P.O. Box 75011 South Africa Department of Medical Genetics Faculty of Medicine University of British Columbia Vancouver BC V6T 1Z3 Canada School of Computing Science Simon Fraser Universtiy Burnaby BC V5A 1S6 8888 University Drive Canada Bioinformatics Graduate Program Genome Sciences Centre BC

The Generation Challenge programme (GCP) is a global crop research consortium directed toward crop improvement through the application of comparative biology and genetic resources characterization to plant breeding. A key consortium research activity is the development of a GCP crop bioinformatics platform to support GCP research. This platform includes the following: (i) shared, public platform-independent domain models, ontology, and data formats to enable interoperability of data and analysis flows within the platform;(ii) web service and registry technologies to identify, share, and integrate information across diverse, globally dispersed data sources, as well as to access high-performance computational (HPC) facilities for computationally intensive, high-throughput analyses of project data;(iii) platform-specific middleware reference implementations of the domain model integrating a suite of public (largely open-access/-source) databases and software tools into a workbench to facilitate biodiversity analysis, comparative analysis of crop genomic data, and plant breeding decision making.

关键词： GENOMICS GERMPLASM resources PLANT breeding PLANT genetics COMPUTERS in biology BIOINFORMATICS -- Software

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Deploying long-lived and cost-effective hybrid sensor networks

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Ad Hoc Networks 2006年第6期4卷 749-767页

作者： Hu, Wen Chou, Chun Tung Jha, Sanjay Bulusu, Nirupama School of Computer Science and Engineering The University of NSW Sydney NSW 2052 Australia Networks and Pervasive Computing Program National ICT Australia Limited Garden Street Eveleigh NSW 1430 Australia Maseeh College of Engineering and Computer Science Department of Computer Science Portland State University Portland OR 97207-0751 United States

In this paper, we consider the problem of network deployment in hybrid sensor networks, consisting of both resource-rich and resource-impoverished sensor devices. The resource-rich devices, called micro-servers, are more expensive but have significantly greater bandwidth and energy capabilities compared to the low-cost, low-powered sensors. Such hybrid sensor networks have the potential to support the higher bandwidth communications of broadband sensor networking applications, as well as the fine-grained sensing that is made possible by smaller sensor devices. However, care must be taken to ensure that such systems are cost-effective to the end user. We investigate some fundamental questions for hybrid sensor network deployment-for a given number of micro-servers, what is the maximum lifetime of a sensor network and the optimal micro-server placement? What benefit can additional micro-servers add to the network, and how financially cost-effective is it to introduce these micro-servers? We propose a cost model and an integer linear programming (ILP) problem formulation for minimizing energy usage in a hybrid sensor network. Then, we prove that the integer linear optimization problem is NP-hard and introduce an efficient approximation algorithm using tabu-search technique. Our studies show that network lifetime can be increased dramatically with the addition of extra micro-servers;and the placement of micro-servers can affect the lifetime of network significantly. Moreover, we propose a network performance-cost ratio model to analyze the cost-effectiveness of the network and show that a hybrid sensor network is financially cost-efficient for a large case. Our optimization algorithm, together with the performance-cost ratio model, can be used to estimate the lifetime and financial cost of a hybrid sensor network before actual deployment.4This paper is a comprehensive extension of our earlier work in [W. Hu, C.T. Chou, S. Jha, N. Bulusu, Deploying long-lived and cost-ef

关键词： Computer networks

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A ten year perspective on changes in engineering education

A ten year perspective on changes in engineering education

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113th Annual ASEE Conference and Exposition, 2006

作者： Flores, Benjamin Darnell, Ann University of Texas-El Paso United States Department of Computing and Electrical Engineering University of Texas El Paso United States ASEE AAAS United States NSBE SPIE Model Institutions for Excellence Program

The Model Institutions for Excellence (MIE) program at the University of Texas at El Paso (UTEP) was implemented with the goal of increasing the number of underrepresented minorities in science, technology, engineering and mathematics (STEM). Funded by the National Science Foundation, this 11-year program challenged UTEP to improve the first-year experience of its entering freshmen, to develop good study habits, to enhance instruction across the STEM curricula, and to promote career options and encourage graduate school. The MIE program's success is based on changing the University culture by promoting early contact with faculty, active learning to engage students, a "home" to study and interact with peers, and exposure to research at the undergraduate level. These MIE activities are key in achieving the University's mission of providing a diverse, commuter-student population in a geographically isolated binational location with the two ideals of excellence and access. Results from these activities show an increased number of undergraduate engineering degrees awarded from 153 in 1997-1998 to 254 in 2004-2005. The number of underrepresented minorities receiving these degrees has increased from 99 in 1997-1998 to 162 in 2004-2005. Additionally, the number of graduate degrees awarded in engineering has nearly doubled annual production from 65 to 129. © American Society for engineering Education, 2006.

关键词： engineering education

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Optimizing wireless communication using adaptive packet sizing and turbo codes

Optimizing wireless communication using adaptive packet sizi...

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2006 Wireless Telecommunications Symposium, WTS

作者： Mittal, Manish S. Gemmill, Jill Orthner, Helmuth F. Department of Electrical and Computer Engineering University of Alabama Birmingham United States Department of Academic Computing University of Alabama Birmingham United States Dept. of HSA Health Informatics Program University of Alabama Birmingham United States

ISBN: (纸本)1424400465

Unlike wired networks, wireless networks have very dynamic channel properties and the data communication suffers from interference, multi-path fading and noise. Since wireless devices are mobile, factors such as energy consumption, effective coverage area and most of all reliability and quality of service are of key importance. The 802.11a/b/g wireless protocols employ static link layer control and transmit packets/frames with pre-determined sizes. This paper focuses on benefits derived from combining adaptive packet/frame sizing with Forward Error Correcting (FEC) Turbo codes. Protecting the data frames on the channel, using FEC enhances efficiency of dynamic packet sizing and is shown to increase energy efficiency and communication range. Adaptive packet sizing software from SmartPackets Inc. and Turbo code simulations are used to discover parameters that are common to both and affect communication efficiency. A multi-fold improvement in throughput is found when these technologies are used simultaneously. © 2006 IEEE.

关键词： Turbo codes

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