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OFC/NFOEC 2007 - Optical Fiber Communication and the National Fiber Optic Engineers Conference 2007

作者： Lee, S.C.J. Breyer, F. Randel, S. Spinnler, B. Polo, I. L. Lobato Van Den Borne, D. Zeng, J. De Man, E. Van Den Boom, H.P.A. Koonen, A.M.J. COBRA Research Institute Fac. of Electrical Engineering Eindhoven Univ. of Tech. Eindhoven Netherlands Institute of Communications Engineering Munich Univ. of Tech. Munich Germany Siemens AG Corporate Technology Information and Communications Munich Germany Siemens AG Siemens AG Program and System Engineering Munich Germany Siemens AG Communications Fixed Networks Munich Germany

10.7 Gbit/s NRZ-signals are transmitted for the first time over 220 m of multimode 120 μm core-diameter perfluorinated graded-index polymer optical fiber using an MLSE equalizer. © 2007 Optical Society of America.

ISBN: (纸本)1557528314

关键词： Light transmission

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An assessment and analysis tool for statistical process control of software processes 7

An assessment and analysis tool for statistical process cont...

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7th International SPICE Conference on Process Assessment and Improvement, SPICE 2007

作者： Kirbaş, Serkan Tarhan, Ayça Demirörs, Onur Siemens Program and System Engineering Department ODTU Teknokent Silikon Blk No:21 Ankara06531 Turkey Bilgi Group Software Research Education and Consultancy Ltd ODTU Teknokent Gumus Blk No:3 Ankara06531 Turkey Informatics Institute Middle East Technical Universit AnkaraMM Kat:4 06531 Turkey

ISBN: (纸本)9788976416094

In software engineering domain, SPC is currently utilized only by organizations which have high maturity levels according to the process improvement models like ISO/IEC 15504 and CMMI. In this paper, we present a software tool that we developed to ease and enhance application of SPC especially for emergent organizations. Our tool has facilities to assess the suitability of software processes and metrics for SPC as well as to analyze a software process with respect to its qualifying metrics using SPC techniques like control charts, histograms, bar charts, and pareto charts. In this paper we explain the tool by means of a bug-fixing process of a system and software development organization.

关键词： Statistical process control

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Mentornet's Wisconsin and Hawaii statewide initiatives

Mentornet's Wisconsin and Hawaii statewide initiatives

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114th Annual ASEE Conference and Exposition, 2007

作者： Wellenstein, Mary Jo Courter, Sandra Sandrin, Susannah Showers, Karen Wilkins, Leslie Muller, Carol Chou-Green, Jennifer Bloor, Ann Mayberry, Laurie Yap, Isla Milwaukee School of Engineering United States University of Wisconsin Madison United States University of Wisconsin Oshkosh United States Wisconsin Technical College System United States Maui Economic Development Board United States MentorNet United States Department of Counseling Services MSOE United States Engineering Learning Center United States Department of Engineering Professional Development University of Wisconsin System Women Science Program United States UW-Oshkosh United States WTCS Maui Economic Development Board HI United States Research Administration MSOE United States Provost University of Wisconsin Madison United States Women in Technology Project Maui Economic Development Board United States

The state of Wisconsin and state of Hawaii are the only states in the nation to have offered MentorNet membership to all public universities and technical colleges. This innovative partnership highlights a new model to launch MentorNet on college campuses. MentorNet, the E-Mentoring Network for Diversity in engineering and Science and an award-winning nonprofit e-mentoring organization, offers a proven effective means to connect students (protégés) in science, technology, engineering, and math (STEM) majors with professionals (mentors) in industry, government and higher education. Since mentoring is recognized as an important engagement strategy to encourage women and girls to pursue STEM education and careers, other states can benefit from the story of the Wisconsin and Hawaii collaboration. Hawaii's Maui Economic Development Board and Wisconsin's Milwaukee School of engineering have partnered under a Women in Technology grant from the U.S. Department of Agriculture Cooperative State Research, Education, and Extension Service. This grant is to encourage women and girls in rural areas to pursue STEM education and careers. Because students at the Hawaii and Wisconsin partner campuses were enthusiastic about their MentorNet experience, the Women in Technology grant funded a two-year contract to waive membership fees for MentorNet for all four-year and two-year University of Wisconsin system and Wisconsin Technical College system campuses;30 institutions could potentially participate. One of the aims of this program was to encourage more technical/community colleges to partner with MentorNet, broadening the range of mentoring opportunities for the diverse population of students who attend such schools. To promote MentorNet participation in the Wisconsin systems, a collaborative team from Hawaii, Milwaukee School of engineering, MentorNet, the University of Wisconsin system, and the Wisconsin Technical College system held a one-day orientation training in August 2005. A

关键词： engineering education

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State of the Climate in 2008

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BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 2009年第8期90卷 S13-+页

作者： Peterson, T. C. Baringer, M. O. Thorne, P. W. Menne, M. J. Kennedy, J. J. Christy, J. Seidel, D. Mears, C. Haimberger, L. Wang, Junhong Zhang, L. Levinson, D. H. Hilburn, K. A. Kruk, M. C. Robinson, D. A. Foster, M. J. Ackerman, S. A. Bennartz, R. Heidinger, A. K. Maddux, B. C. Rossow, W. B. Macdonald, A. M. Fekete, B. M. Bowling, L. C. Lammers, R. B. Lawford, R. Allan, R. Wong, Takmeng Stackhouse, P. W., Jr. Kratz, D. P. Wilber, A. C. Schnell, R. C. Dlugokencky, E. J. Montzka, S. A. Elkins, J. W. Dutton, G. S. Haywood, J. Bellouin, N. Jones, A. Weber, M. Pelto, M. S. Belward, A. S. Bartholome, E. Achard, F. Brink, A. B. Gobron, N. Belward, A. S. Levy, J. M. Xue, Y. Reynolds, R. W. Johnson, G. C. Lyman, J. M. Willis, J. K. Levitus, S. Boyer, T. Antonov, J. Schmid, C. Goni, G. J. Yu, L. Weller, R. A. Goni, G. J. Knaff, J. A. Johnson, G. C. Lyman, J. M. Lumpkin, R. Goni, G. Dohan, K. Baringer, M. O. Meinen, C. S. Johnson, G. C. Kanzow, T. O. Cunningham, S. A. Johns, W. E. Beal, L. M. Hirschi, J. J. -M. Rayner, D. Longworth, H. R. Bryden, H. L. Marotzke, J. Merrifield, M. A. Nerem, R. S. Mitchum, G. T. Miller, L. Leuliette, E. Gill, S. Feely, R. A. Sabine, C. L. Feely, R. A. Wanninkhof, R. Takahashi, T. Behrenfeld, M. J. Siegel, D. A. O'Malley, R. T. Maritorena, S. Dickson, A. G. Feely, R. A. Dickson, A. G. Diamond, H. J. L'Heureux, M. Bell, G. Halpert, M. Bell, G. D. Blake, E. Goldenberg, S. B. Kimberlain, T. Landsea, C. W. Pasch, R. Schemm, J. Kruk, M. C. Levinson, D. H. Weyman, J. Camargo, S. J. Gleason, K. L. Kruk, M. C. Salinger, M. J. Trewin, B. Watkins, A. B. Luo, J. J. Richter-Menge, J. Overland, J. Wang, M. Walsh, J. Perovich, D. K. Meier, W. Nghiem, S. V. Walker, D. A. Bhatt, U. S. Raynolds, M. K. Comiso, J. E. Epstein, H. E. Jia, G. J. Romanovsky, V. Oberman, N. Drozdov, D. Malkova, G. Kholodov, A. Marchenko, S. Derksen, C. Brown, R. Wang, Lei Sharp, M. Wolken, G. Box, J. E. Bai, L. -S. Benson, R. Bhattacharya, I. Bromwich, D. H. Cappelen, J. Decker, D. DiGirolamo, N. Fettweis, X. Hall, D. Hanna, E. Mote, Universidad de Chile Santiago Chile Institute for Environment and Sustainability Joint Research Centre Ispra Italy Earth Sciences Centre University of Gothenburg Gothenburg Sweden Cimss University of Wisconsin-Madison Madison WI United States Center for Geophysical Research University of Costa Rica San José Costa Rica Met Office Hadley Centre Devon Exeter United Kingdom NOAA/NESDIS National Ocean Data Center Silver Spring MD United States Arctic and Antarctic Research Institute St. Petersburg Russian Federation Ministry of Agriculture and Land Reclamation Cairo Egypt DMH-DINAC/CTA-UCA Asunción Paraguay Byrd Polar Research Center Department of Geography The Ohio State University Columbus OH United States NOAA/NWS Honolulu HI United States NOAA/Atlantic Oceanographic and Meteorological Laboratory Physical Oceanography Division Miami FL United States Argentine Naval Hydrographic Service Buenos Aires Argentina Centro de Geofísica da Universidade de Lisboa Lisbon Portugal Rosenstiel School of Marine and Atmospheric Science Division of Meteorology and Physical Oceanography Miami FL United States Oregon State University Corvallis OR United States International Institute for Climate and Society Palisades NY United States Department of Atmospheric and Oceanic Sciences University of Wisconsin-Madison Madison WI United States Geophysical Institute University of Alaska-Fairbanks Fairbanks AK United States Instituto de Fisica Montevideo Uruguay German Meteorological Service Offenbach Germany NOAA/NWS/NCEP National Hurricane Center Miami FL United States Institute of Meteorology of Cuba La Habana Cuba Department of Agronomy Purdue University West Lafayette IN United States Climate Research Division Environment Canada Downsview ON Canada Ocean Observing and Climate Research Group National Oceanography Centre Southampton United Kingdom All-Russian Research Institute of Hydrological Information Obninsk Russian Federation Lamont Doherty Earth Observa

The global mean temperature in 2008 was slightly cooler than that in 2007; however, it still ranks within the 10 warmest years on record. Annual mean temperatures were generally well above average in South America, northern and southern Africa, Iceland, Europe, Russia, South Asia, and Australia. In contrast, an exceptional cold outbreak occurred during January across Eurasia and over southern European Russia and southern western Siberia. There has been a general increase in land-surface temperatures and in permafrost temperatures during the last several decades throughout the Arctic region, including increases of 1° to 2°C in the last 30 to 35 years in Russia. Record setting warm summer (JJA) air temperatures were observed throughout *** year 2008 was also characterized by heavy precipitation in a number of regions of northern South America, Africa, and South Asia. In contrast, a prolonged and intense drought occurred during most of 2008 in northern Argentina, Paraguay, Uruguay, and southern Brazil, causing severe impacts to agriculture and affecting many *** year began with a strong La Niña episode that ended in June. Eastward surface current anomalies in the tropical Pacific Ocean in early 2008 played a major role in adjusting the basin from strong La Niña conditions to ENSO-neutral conditions by July–August, followed by a return to La Niña conditions late in December. The La Niña conditions resulted in far-reaching anomalies such as a cooling in the central tropical Pacific, Arctic Ocean, and the regions extending from the Gulf of Alaska to the west coast of North America; changes in the sea surface salinity and heat content anomalies in the tropics; and total column water vapor, cloud cover, tropospheric temperature, and precipitation patterns typical of a La Niña. Anomalously salty ocean surface salinity values in climatologically drier locations and anomalously fresh values in rainier locations observed in recent years generally persisted

关键词： Storms

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Numerical analysis of the unsteady cavitating flow in a 2D-cascade and a 3D-inducer

Numerical analysis of the unsteady cavitating flow in a 2D-c...

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43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference

作者： Ugajin, Hiroki Kawai, Masafumi Okita, Kohei Ohta, Takashi Kajishima, Takeo Nakano, Masataka Tomaru, Hiroshi IHI Corporation Tokyo 190-1297 Japan IHI Corporation Yokohama 235-8501 Japan RIKEN Wako Saitama 113-8656 Japan Osaka University Osaka 565-0871 Japan Space Technology Group Research and Engineering Division Aero-Engine and Space Operations 229 Tonogaya Mizuho-machi Nishitama-gun AIAA Fluid Group Research Laboratory Functionality Simulation and Information Team VCAD System Research Program Center for Intellectual Property Strategies Department of Mechanical Engineering Space Technology Group Research and Engineering Division Aero-Engine and Space Operations

ISBN: (纸本)1563479036

The unsteady cavitating flow in a turbopump inducer has been analyzed using CFD simulation results. An accurate three-dimensional detached eddy simulation (DES) code which took into account the cavitating phenomena was used. The three-dimensional code is based on the numerical method for compressible flow using low Mach number flow approximation. The cavitation is modeled by the source/sink of vapor phase in the liquid flow. The code has been applied for cavitating flows in both a 2D cascade and a 3D inducer. The computational results showed similar unsteady behaviors to experimental measurements in terms of the direction in cavity propagations and tendency in cavity developments. Mechanism for the unsteady cavitating flow such as rotating cavitation is investigated by analyzing the numerical results. One model is proposed to describe the reason why the cavity appears to propagate in the forward direction.

关键词： Unsteady flow

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engineering enterprise alliance: A K-12, university and industry initiative to create a pathway to engineering and science careers

Engineering enterprise alliance: A K-12, university and indu...

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114th Annual ASEE Conference and Exposition, 2007

作者： Oppliger, Douglas Oppliger, Shawn Raber, Mary Warrington, Robert Michigan Technological University United States Engineering Fundamentals Department Michigan Technological University United States Utica Public School System United States Copper Country Intermediate School District Western Upper Peninsula Center for Science Mathematics and Environmental Education and Science United States Michigan Math. and Science Centers Network United States Western UP Center Enterprise Program MTU Institute for Interdisciplinary Studies Institute for Micromanufacturing Louisiana Tech. University United States Council on Engineering Education Board on International Standards for ASME Committee on Accreditation for ABET

Since the fall of 2000, Michigan Technological University's undergraduate Enterprise program (***) of cross-disciplinary problem solving and product generation has created active learning environments for undergraduate students across campus. Teams of students from a variety of disciplines are given an opportunity to work in a business-like setting to solve real-world engineering problems supplied by industry. Through participation in the program, Enterprise students are able to develop technical competence as well as an understanding of the practical application of skills and knowledge in areas such as communication, business, leadership, teamwork, global competition, and entrepreneurship. Michigan Tech strongly believes that in order to increase the number of students who select to enroll in technical programs, students must be introduced to engineering and science while they are in elementary and secondary school. The hands-on educational model of the Enterprise program has been very successful in generating an excitement about engineering and science at the undergraduate level, so expanding this model to the K-12 system would seem to be a natural progression. Michigan Tech is in the process of working with high school teachers in local school districts to create an Enterprise-like model that builds upon the success of the undergraduate program, yet is tailored for the secondary learning environment. A joint team of MTU and high school faculty and administrators have been working together to develop a precollege-enterprise experience designed to introduce and involve students in engineering and technology. Project based, contextual learning experiences will be the foundation of the program, and are intended to increase the technological awareness of the future workforce. Our goal is to develop and implement a model at the regional level that can be readily transferred to the state and national levels. This paper will summarize the process used

关键词： engineering education

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Synergies between space research and space operations-examples from the international space station

Synergies between space research and space operations-exampl...

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45th AIAA Aerospace Sciences Meeting 2007

作者： Tate, Judy M. Bartlett, John K. Robinson, Julie A. Maender, Christian C. Putcha, Lakshmi Smith, Scott M. Bowman, Mark A. Dulchavsky, Scott A. Sargsyan, Ashot E. Miller, Sharon K. Banks, Bruce A. DeGroh, Kim K. Tsui, Denver Engineering Science Contract Group NASA Johnson Space Center Houston TX 77058 United States NASA Johnson Space Center Houston TX 77058 United States Henry Ford Health System Detroit MI 48202 United States Wyle Laboratories NASA Johnson Space Center Houston TX 77058 United States NASA Glenn Research Center Cleveland OH 44135 United States ISS Program Scientist's Office International Space Station Mail Code JE-5EA ISS Payloads Office International Space Station Mail Code OZ ISS Program Scientist's Office International Space Station Mail Code OA Human Research and Countermeasures Division Space Life Sciences Mail Code SK Human Space Flight Program - Russia International Space Station Mail Code OK Medical Operations Branch Space Medicine Division Space Life Sciences Henry Ford Health System CFP-1 RM 110 Electro-Physics Branch Power and Electric Propulsion Division Mail Code MS309-2 Biomedical Systems Engineering Mail Code EB

ISBN: (纸本)1563478900

Primary objectives for the International Space Station (ISS) in support of the Vision for Space Exploration include conducting research to counteract the harmful effects of space on human health, test new space technologies, and learn to operate long-duration space missions. In pursuit of these objectives, NASA is interested in closer cooperation between the ISS operational community, scientists, and engineers. To develop the exploration vehicles for missions to the moon and Mars, NASA must test materials, foods, and medicines to ensure their performance in the space environment. These results will enable important decisions on the materials to be used for future space vehicles. Another critical factor for the success on future missions beyond Earth orbit is the capability for repairs of equipment. On the ISS, the practice of crewmembers performing repairs in microgravity will increase our understanding of the repair processes in space;when these capabilities are needed during future space exploration missions, we will have the knowledge and experience to perform them. The ISS is a unique and irreplaceable training ground for building the operational knowledge required to safely conduct future exploration missions, and the growing links within the science, engineering and operations communities are reinforcing the value of that training. Current interactions between the communities that support the ISS have already produced many synergies that are significantly accelerating NASA's advancement towards future exploration missions in support of the Vision.

关键词： Space research

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10.7 Gbit/s Transmission over 220 m Polymer Optical Fiber using Maximum Likelihood Sequence Estimation

10.7 Gbit/s Transmission over 220 m Polymer Optical Fiber us...

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Optical Fiber Communication (OFC) Conference

作者： S.C.J. Lee F. Breyer S. Randel B. Spinnler I. L. Lobato Polo D. van den Borne J. Zeng E. de Man H. P. A. van den Boom A.M.J. Koonen COBRA Research Institute Fac. of Electrical Engineering Eindhoven Univ. of Tech. Eindhoven Eindhoven The Netherlands Institute of Communications Engineering Munich Univ. of Tech Munich Germany Corporate Technology Information and Communications Siemens AG Munchen Germany COBRA Research Institute Fac. of Electrical Engineering Eindhoven Univ. of Tech. Eindhoven The Netherlands Siemens AG Corporate Technology Information and Communications Munich Germany Siemens AG Siemens AG Program and System Engineering Munich Germany Siemens AG Communications Fixed Networks Munich Germany

10.7 Gbit/s NRZ-signals are transmitted for the first time over 220 m of multimode 120 μm core-diameter perfluorinated graded-index polymer optical fiber using an MLSE equalizer.

ISBN: (纸本)1557528306

10.7 Gbit/s NRZ-signals are transmitted for the first time over 220 m of multimode 120 μm core-diameter perfluorinated graded-index polymer optical fiber using an MLSE equalizer.

关键词： Optical polymers Optical fibers Maximum likelihood estimation Bit error rate Silicon compounds Optical fiber devices Optical fiber cables Distributed feedback devices Laser modes Optical attenuators

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Stethoscopes: What are we hearing?

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Biomedical Instrumentation and Technology 2007年第4期41卷 318-323页

作者： Callahan, Dale Waugh, Jonathan Mathew, George Allen Granger, Wesley M. Department of Electrical and Computer Engineering University of Alabama Birmingham Birmingham AL United States Respiratory Therapy Program School of Health Related Professions University of Alabama Birmingham Birmingham AL United States Lung Health Center and Minority Health and Research Center University of Alabama Birmingham Birmingham AL United States Information System Department General Motors Acceptance Corporation Detroit MI United States

This paper develops an objective methodology to test the audio quality of stethoscopes, classifies stethoscopes into five functional categories, and compares the audio performance of each of the five categories. These categories, based on the manufacturers recommended use, are basic assessment, cardiology, disposable, high-end cardiology, and physical assessment. The classification into categories is based on the intended performance of the stethoscopes as provided by the manufacturers. After developing the procedures and running more than 500 tests, the stethoscope with the least amount of loss over the spectrum was chosen from each of the five categories;the five were then compared to one another. Thirty-nine stethoscopes from 11 manufacturers were used in this study. The objective test methodology allows for side-by-side comparison of stethoscopes from various manufacturers that is independent of the manufacturers published test results.

关键词： Biomedical equipment

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Cost-effective 10.7-Gbit/s Long-Haul Transmission using Fiber Bragg Gratings for In-line Dispersion Compensation

Cost-effective 10.7-Gbit/s Long-Haul Transmission using Fibe...

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Optical Fiber Communication - OFC 2007 Collocated National Fiber Optic Engineers Conference (OFC 2007), vol.3

作者： D. van den Borne V. Veljanovski E. de Man U. Gaubatz C. Zuccaro C. Paquet Y. Painchaud S. L. Jansen E. Gottwald G. D. Khoe H. de Waardt COBRA institute Eindhoven University of Technology The Netherlands Siemens AG Program and System Engineering Munich Germany Siemens AG Communications，Fixed networks Munich Germany TeraXion Inc. Quebec City Quebec Canada.

We show the feasibility of more cost-effective long-haul transmission using Fiber Bragg Gratings (FBG) for in-line dispersion compensation. 32×10.7-Gbit/s NRZ modulated channels are transmitted over 40×95km ... 详细信息

ISBN: (纸本)1557528306

关键词： Dispersion Distributed feedback lasers Erbium doped fiber amplifiers Fiber Bragg gratings Nonlinear impairments Optical signals Fiber optics and optical communications (060.0060) Optical communications (060.4510) Optical devices (230.0230) Bragg reflectors (230.1480)

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