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Overcoming Bandwidth and Satellite Communications Limitations to Accelerate Applications of Remote Sensing and High Performance computing for Sustainable African Development: Contributions from Egypt, Nigeria and South Africa

Overcoming Bandwidth and Satellite Communications Limitation...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Gilbert L. Rochon Magdy Wahab Gamal El Afandi Ado Dan-Isa Happy Sithole Khomotso Kganyago Souleymane Fall Joseph Quansah Akilah Martin Bereket Araya Chetan Maringanti Cliff Robinson Kaiem L. Frink Jean Pierre Antelo Rosen Center for Advanced Computing Purdue Terrestrial Observatory Purdue University-Information Technology IN USA Department of Astronomy & Meteorology Faculty of Science Cairo University Cairo Egypt Department of Meteorology & Astronomy Al-Azhar University Cairo Egypt Department of Computer Engineering Bayero University Kano Nigeria Center for High Performance Computing CHCP-CSIRO Cape Town South Africa Department of Agricultural & Biological Engineering Purdue University West Lafayette IN USA School for New Learning De Paul University Chicago IL USA Purdue Research Opportunities Program West Lafayette IN USA

Sixty-two years after the first photos of earth taken by a camera aboard a V-2 rocket in October, 1946, and forty-eight years since the first CORONA satellite images were captured, the status of remote sensing research and applications within the African continent has made dramatic progress. Many African countries now have remote sensing research centers, within government agencies, research institutes and universities. Some countries in Africa currently have earth observing and/or telecommunications satellites in orbit and/or have such assets in various planning stages. The authors document such progress, in addition to the constraints to further applications of remote sensing for sustainable development in Africa, with special reference to data distribution constraints. Moreover, the authors address the urgency for bandwidth improvements within the African continent, so as to enable sustainable development initiatives to benefit from advances in high performance computing, required for ab initio near-real-time analysis of satellite-data. Such capabilities, it is argued, are propaedeutic for time-critical initiatives, such as vulnerability assessment, disaster preparedness and mitigation, emergency response, humanitarian assistance and post-calamity reconstruction, associated with a wide array of biogenic and anthropogenic disasters. Case studies of advances in infrastructure for satellite remote sensing and high performance computing, with implications for sustainable development in Africa, are provided from Egypt, Nigeria and South Africa.

关键词： Bandwidth Satellite communication Acceleration Remote sensing High performance computing Africa Sustainable development Earth Continents Cameras

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A deliberate integration of information technology into the classroom

A deliberate integration of information technology into the ...

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114th Annual ASEE Conference and Exposition, 2007

作者： Fairfax, Duane Huggins, Kevin Goda, Bryan USMA United States Computer Science Program US Military Academy United States IEEE Department of Electrical Engineering and Computer Science US Military Academy at West Point United States Association for Computing Machinery Institute of Electrical and Electronic Engineers Information Technology Program US Military Academy United States

The information Age has revolutionized the way students learn in the classroom. The United States Military Academy (USMA) emphasizes the importance of information Technology (IT) through an academy-wide IT specific goal. This goal supports the USMA's mission of producing Army Officers who can respond effectively to technological changes in the defense of our nation. Courses augmented with IT can be daunting for cadets who lack the experience and confidence level to succeed in the course. As a result, these types of courses are avoided by cadets if at all possible. This is not an option for an aspiring officer who will lead the soldiers of tomorrow on a digitized battlefield. Since 1990, cadets have been issued a computer which has played a central role in bringing the power of IT to all graduates of the Military Academy. Integration of IT in the curriculum begins early with every cadet receiving a laptop computer. An integrated software package is included to support any course of instruction. Cadets receive two courses in IT, one in their freshman year and one in their junior year. The freshman course teaches the cadet the basic functionality of the laptop, a basic programming language, and creating a basic website. The junior course builds on the freshman course by teaching the cadets to create an advanced website, design and build a network, manage a database, and create an information system. IT plays a central role in several overlap courses between engineering and the humanities in such areas as information warfare, terrorism, and the legal aspects of intellectual property rights. What makes this approach unique is the methodical diffusion of IT into course design which removes the barrier between learning and the implementation of IT as an academic multiplier. An academy-wide committee consisting of 12 members is responsible for examining collected data to see how well the Military Academy is meeting its LT goal. This data comes from a variety of sources such

关键词： information technology

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Middleware Vertical Handoff Manager: A Neural Network-Based Solution

Middleware Vertical Handoff Manager: A Neural Network-Based ...

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IEEE International Conference on Communications (ICC)

作者： N. Nasser S. Guizani E. Al-Masri Department of Computing & Information Science University of Guelph Guelph ONT Canada Foundation Program Unit Qatar University Doha Qatar

Major research challenges in the next generation of wireless networks include the provisioning of worldwide seamless mobility across heterogeneous wireless networks, the improvement of end-to-end quality of service (QoS), supporting high data rates over wide area and enabling users to specify their personal preferences. The integration and interoperability of this multitude of available networks will lead to the emergence of the fourth generation (4G) of wireless technologies. 4G wireless technologies have the potential to provide these features and many more, which at the end will change the way we use mobile devices and provide a wide variety of new applications. However, such technology does not come without its challenges. One of these challenges is the user's ability to control and manage handoffs across heterogeneous wireless networks. This paper proposes a solution to this problem using artificial neural networks (ANNs). The proposed method is capable of distinguishing the best existing wireless network that matches predefined user preferences set on a mobile device when performing a vertical handoff. The overall performance of the proposed method shows 87.0 % success rate in finding the best available wireless network. To test for the robustness and effectiveness of the neural network algorithm, some of the features were removed from the training set and results showed a significant impact on the overall performance of the system. Hence, managing vertical handoffs through user preferences can be significantly affected with the selection of features used to provide the closest match of the available wireless networks.

关键词： Middleware Neural networks Wireless networks Quality of service Roaming Communications Society Computer network management Quality management Computer networks information science

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Remote internetworking laboratory

Remote internetworking laboratory

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113th Annual ASEE Conference and Exposition, 2006

作者： Jabbour, Imad Haydamous, Linda Kazan, Wissam Hayek, Amine Massachusetts Institute of Technology United States Information Technology Program MIT United States MIT's Center for Educational Computing Initiatives IEEE New Jersey Institute of Technology United States Engineering Management Program New Jersey Institute of Technology United States Operations Research Stanford University United States Computer Science Program Stanford University United States

Remote experimentation is the process of conducting real lab experiments without being physically in contact with lab devices. Recently, the development of Internet technologies fostered the spread of online laboratories, and significant benefits helped establish remote experimentation as a potential substitute to real experimentation. Internetworking lab experiments usually involve very expensive hardware;and providing remote access to this type of laboratories is highly desired, especially when a large number of students must share a limited set of devices. Very few remote internetworking laboratories have previously been implemented, and they had several drawbacks. In this paper, we discuss our design of a Remote Internetworking Laboratory which provided access to the internetworking lab at the American University of Beirut (AUB). The uniqueness of our approach is that it uses VLANs (Virtual LANs) to build network topologies, a technique that separates network subnets into different broadcast domains before allowing users to configure each lab device. The proposed scheme overcomes the limitations of other designs, and allows users to build any desired network topology and configure the lab devices in real-time. Many technical and educational features were integrated into the system, and possible enhancements were suggested based on several evaluation criteria. © American Society for Engineering Education, 2006.

关键词： Network architecture

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Examining design threads: Issues in Web design across student populations

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Proceedings of the Association for information science and Technology 2006年第1期42卷

作者： Joette Stefl-Mabry Allison Druin Dania Bilal Michael Radlick Thomas Mackey Carol Doll Diane Nahl Department of Information Studies of the College of Computing and Information and School of Education University at Albany State University of New York University of Maryland College of Information Studies and Institute for Advanced Computer Studies School of Information Sciences The University of Tennessee 1345 Circle Park Knoxville TN 37996 The Not for Profit Institute for Research on Learning Technology Visions Department of Information Studies of the College of Computing and Information University at Albany State University of New York Department of Information and Computer Sciences Library and Information Science Program University of Hawai'I at Manoa

This session relates directly to this year's conference theme Sparking Synergies: Bringing Research and Practice Together as it brings together researchers from different disciplines (information science and educational technology) to discuss current issues and trends related to Web usage across student populations. “Complex design problems require more knowledge than any single person possesses” (Arias, Eden, Fischer, Gorman, and Scharff, 2000, p. 84), thus each panelist will contribute highlights of his or her current research regarding the design, information, and pedagogical, needs of specific student populations (K-12 to higher education). After the panelists have presented their findings Diane Nahl will intertwine the threads of the panelists' conversations and, with the audience's assistance, begin to weave a fabric to uncover common usability issues.

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Real-time organ motion tracking and fast image registration system for MRI-guided surgery

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Systems and Computers in Japan 2006年第1期37卷 83-92页

作者： Tokuda, Junichi Hirano, Masaya Tsukamoto, Tetsuji Dohi, Takeyoshi Hata, Nobuhiko Graduate School of Information Science and Technology University of Tokyo Tokyo 113-8656 Japan GE Yokogawa Medical Systems Ltd. Hino 191-8503 Japan International Society for Computer-Aided Surgery Japan Society for Computer-Aided Surgery Japan Society for Magnetic Resonance in Medicine GE Yokogawa Medical Systems Ltd. Imaging Application Tech. Center MR Group R and D Laboratory Technology Center GE Yokogawa Medical Systems Ltd. Society for Magnetic Resonance in Medicine Graduate School of Information Science and Technology Society for Life Support Technology Japan Society for Organ Preservation Biology and Medicine Society for Precision Engineering Society for Medical Image Computing and Computer Assisted Intervention International Union for Physics and Engineering Sciences in Medicine JSMEBE Japan Society for Life Assistance Technology Brigham and Women's Hospital Harvard Medical School MR Therapy Program

The advantage of magnetic resonance imaging (MRI)-guided surgery, in which MR images taken during surgery are used to guide the surgery, has been recognized recently. However, there is a problem, due to long imaging time of MRI, that it is difficult to capture the respiratory organ motion. It is often a constraint that the patient must hold his or her breath, especially in the treatment of the abdominal region. Consequently, this paper proposes a method of eliminating this constraint in MRI-guided surgery by real-time monitoring of the movement of the organ involved in the surgery by means of the signal derived from MRI. Specifically, the navigator echo is extracted in imaging during surgery. The movement of the organ involved in surgery is detected on the basis of the change in the calculated projection profile, and the results are presented to the surgeon. In this study, the procedure is built into a 1.5-T clinical MRI system. The feasibility of the proposed system was examined under clinical conditions by evaluating its accuracy and delay in a phantom experiment, and also in an in vivo experiment on the liver of a volunteer. The results are reported in this paper. © 2005 Wiley Periodicals, Inc.

关键词： Motion estimation

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Guest editors' introduction: Special issue on mobile services

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Mobile Networks and Applications 2005年第4期10卷 383-384页

作者： Mahmoud, Qusay H. Varshney, Upkar Department of Computing and Information Science University of Guleph Canada Department of Distributed Computing Wireless and Telecommunications System Technology Program University of Guelph-Humber Toronto Canada Georgia State University Atlanta United States

No abstract available

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Space based real-time kinematic GPS for national geodetic survey Texas height modernization

Space based real-time kinematic GPS for national geodetic su...

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18th International Technical Meeting of the Satellite Division of The Institute of Navigation, ION GNSS 2005

作者： Lyle, S.D. Mulcare, D.M. Texas A and M University Corpus Christi NOAA National Geodetic Survey Texas A and M University Computing and Mathematical Science Geographic Information Science Program Conrad Blucher Institute for Surveying and Science Corpus Christi

Height Modernization is a program in NOAA's National Geodetic Survey (NGS) that uses the Global Positioning System (GPS) and other new technologies to increase the accuracy of elevation measurements that comprise the vertical portion of the National Spatial Reference System (NSRS). Height Modernization program within NGS is working with states to improve the height component of their survey control networks and related products. Texas A&M University- Corpus Christi (A&M-CC) was designated as the recipient of a grant under the program during the most recent Congressional cycle. In order to best coordinate and manage the activities funded by the grant, A&M-CC has established the Texas Spatial Reference Center (TxSRC). TxSRC will assist state agencies, private companies, public utilities and federal agencies in their efforts to improve the statewide network of control points as well as to support their use of GPS Continuing Operating Reference Stations (CORS). TxSRC plans to support the development of a statewide system of broadcasting Networked Transport of RTCM via Internet Protocol (NTRIP) for RTK-GPS. TxSRC will research methods of using NTRIP to locate and to collect information on geodetic monuments. NTRIP use is being considered as a way to overcome the limitations of RTK. Current RTK-GPS implementations require cellular or radio modern connections as the mechanism for receiving differential corrections. This infrastructure is not available in many remote and rural areas of Texas. It is proposed that a space-based (SB) RTK-GPS should be used to provide corrections in areas where no other corrections can be obtained without additional terrestrial infrastructure development. The proposed solution uses the Hughes Network System's Directway broadband internet satellite to send corrections to remote sites. Data would be received at the remote site and then locally broadcast to rover users. This SB-RTK-GPS will allow TxSRC to utilize the existing network of CORS sites

关键词： Global positioning system

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Journal of information science and Engineering: Editorial notice

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Journal of information science and Engineering 2005年第5期21卷 i-ii页

作者： Lee, Der-Tsai Amato, Nancy M. Chang, Shih-Fu Chen, Homer H. Chen, Tsuhan Hsu, Tsan-Sheng Hwang, Jenq-Neng Kuo, Sy-Yen Kuo, Tei-Wei Li, Chung-Sheng Tokuyama, Takeshi Wing, Jeannette Wu, Tzong-Chen Yen, John Computer Science at Texas A and M University United States Parasol Laboratory United States IEEE Transactions on Parallel and Distributed Systems Computing Research Association's Committee on the Status of Women in Computing Research CRA-W's Distributed Mentor Program United States Department of Electrical Engineering Columbia University United States Lab. United States College of Electrical Engineering and Computer Science National Taiwan University Taiwan IEEE Transactions on Circuits and Systems for Video Technology IEEE Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA United States ACM ACM SIGACT IEEE Computer Society IICM Austria Research and Development of the Department Multimedia Signal Processing Technical Committee IEEE Signal Processing Society United States IEEE Transactions on Circuits and systems for Video Technology College of Electrical Engineering and Computer Science National Taiwan Ocean University Keelung Taiwan Department of Electrical Engineering National Taiwan University Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan IEEE Technical Committee on Real-Time Systems Computer Science Division IBM T.J. Watson Research Center United States IBM Research Division Graduate School of Information Sciences Tohoku University Japan ACM IPSJ Mathematical Society of Japan Japan Department of Computer Science Computer Science Department Carnegie Mellon University United States National Academies of Science's Computer Science and Telecommunications Board United States Microsoft's Trustworthy Academic Advisory Board Intel Research Pittsburgh's Advisory Board United States Dartmouth's Institute for Security Technology Studies Advisory Committee Canada Sloan Research Fellowships Program Committee United States ACM Taiwan China Information Sciences and Technology Pennsylvania State University United States Laboratory for Intelligent Agents Penn State's School of Info

No abstract available

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Building intelligent system: Learning from the cortico-hippocampal network

Building intelligent system: Learning from the cortico-hippo...

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2004 IEEE Conference on Cybernetics and Intelligent Systems

作者： Ng, Gee Wah Tan, Chung Huat Chaturvedi, Namit Information Exploitation Program DSO National Laboratories 20 Science Park Drive Singapore 118230 School of Computing National University of Singapore 3 Science Drive 2 Singapore 117543

ISBN: (纸本)0780386442

This paper describes the way human brain structures its memory. Human memory could be broadly classified into sensory buffer memory, short-term memory, and long term memory. The work involves an investigation on current human memory function and its association to information processing. Also investigated, is a model of the functioning of a part of the brain, called the cortico-hippocampal region that explains how the brain can learn to predict stimuli based on context cues. The work explores the cortico-hippocampal model and the possibility of an extension of this model. Its possible applications in the field of intelligent computer systems are also being considered in this paper.

关键词： Artificial intelligence

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