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IEEE Potentials 2004年第1期23卷 24-27页

作者： Doom, Travis Raymer, Michael Krane, Dan IEEE Wright State University United States Department of Computer Science and Engineering Graduate Faculty in Biomedical Sciences Dayton OH United States WSU Biomedical Sciences Ph.D. Program Forensic Bioinformatics Inc. United States Bioinformatics Research Group Computer Science Department Wright State University United States

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关键词： Bioinformatics Biology computing Biological information theory Data analysis Computational biology Proteins Biochemistry Sequences Genomics Large-scale systems

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Carbon nanotube growth from Cu–Co alloys for field emission applications

Journal of Vacuum Science & Technology B: Microelectronics a...

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Journal of Vacuum science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena 2004年第3期22卷 1286-1289页

作者： W. Hofmeister W. P. Kang Y. M. Wong J. L. Davidson Interdisciplinary Graduate Program in Material Science Vanderbilt University Nashville Tennessee 37235 Interdisciplinary Graduate Program in Material Science and Department of Electrical Engineering and Computer Science Vanderbilt University Nashville Tennessee 37235 Department of Electrical Engineering and Computer Science Vanderbilt University Nashville Tennessee 37235

We have developed a method of catalyst preparation for carbon nanotube (CNT) growth that uses solid-state diffusion to precipitate Co particles in a Cu matrix and control the size and size distribution of catalyst particles. Copper is an excellent electrical and thermal conductor, and has a small or negligible solubility for Co. Cu–Co alloys of approximately 5 atm% Co were formed in bulk by splat quenching the liquid alloy and on Si substrates by e-beam evaporation of the alloy, sputtering of the alloy, and sputter deposition of thin films of pure Cu and Co. The Co easily precipitates from dilute solutions of Cu–Co with heat treatment. These alloys and films were used to generate uniform distributions of Co precipitates, and CNTs were successfully grown by plasma enhanced chemical vapor deposition (PE-CVD) and thermal CVD on the materials. These alloys can be patterned by photolithography and sputtering in order to grow CNTs in defined locations. Therefore, the technique is amenable to very large scale silicon integration for field emission applications. The results of this work and data from field emission studies are presented herein.

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System dynamics of supply chain network organization structure

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Information Systems and e-Business Management 2004年第2期2卷 187-206页

作者： Zhang, Yong Dilts, David Management of Technology Program Vanderbilt University Electrical Engineering & Computer Science Department School of Engineering Nashville USA Owen Graduate School of Management Vanderbilt University Nashville USA

Information technology is providing manufacturers with additional flexibility with regard to their supply chain network choices. Our research studies supply chain network organization structures categorized by the organic and mechanistic management control structures. The structural impacts on cost and fill rate performance are studied in two-echelon and two-supply-chain network organization models under different market coordination conditions using system dynamic simulations. Our results show significant effects of demand and network structural factors, and their interactions, on these measures. As demand becomes dynamic, the cooperative interaction model, where supply chains cooperate to satisfy customer demand, is found to have better system performance than the competitive supply chain model. The analysis also suggests that increasing the responsiveness at the downstream plant is particularly important to the overall system performance improvement.

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Minimal Non-simple Sets in 4-Dimensional Binary Images with (8,80)-Adjacency

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 3322卷 318-333页

作者： Yung Kong, T. Gau, Chyi-Jou Department of Computer Science Queens College City University of New York 65-30 Kissena Boulevard Flushing NY 11367 United States Doctoral Program in Computer Science Graduate School and University Center City University of New York 365 Fifth Avenue New York NY 10016 United States

We first give a definition of simple sets of 1's in 4D binary images that is consistent with (8,80)-adjacency-i.e., the use of 8adjacency to define connectedness of sets of 1's and 80-adjacency to define connectedness of sets of 0's. Using this definition, it is shown that in any 4D binary image every minimal non-simple set of 1's must be isometric to one of eight sets, the largest of which has just four elements. Our result provides the basis for a fairly general method of verifying that proposed 4D parallel thinning algorithms preserve topology in our (8,80) sense. This work complements the authors' earlier work on 4D minimal nonsimple sets, which essentially used (80,8)-adjacency-80-adjacency on 1's and 8-adjacency on 0's. © Springer-Verlag 2004.

关键词： Binary images

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Prediction of the risk types of human papillomaviruses by Support Vector Machines

Prediction of the risk types of human papillomaviruses by Su...

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8th Pacific Rim International Conference on Artificial Intelligence, PRICAI 2004: Trends in Artificial Intelligence

作者： Joung, Je-Gun Sok June, O. Zhang, Byoung-Tak Biointelligence Laboratory Graduate Program in Bioinformatics Seoul National University Seoul 151-742 Korea Republic of Seoul National University Seoul 151-742 Korea Republic of School of Computer Science and Engineering Seoul National University Seoul 151-742 Korea Republic of Department of Pharmacology College of Medicine Inje University Busan 614-735 Korea Republic of

ISBN: (纸本)3540228179

Infection by high-risk human papillomaviruses (HPVs) is associated with the development of cervical cancers. Classification of risk types is important to understand the mechanisms in infection and to develop novel instruments for medical examination such as DNA microarrays. In this paper, we classify the risk type of HPVs by using the protein sequences. Our approach is based on the hidden Markov model and the Support Vector Machines. The former searches informative subsequence positions and the latter computes efficiently to classify protein sequences. In the experiments, the proposed classifier was compared with previous methods in accuracy and F-cost, also the prediction result of four unknown types is presented. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Viruses

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Improving project design through process awareness agents

Improving project design through process awareness agents

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CSCWD 2004 - 8th International Conference on computer Supported Cooperative Work in Design - Proceedings

作者： Vivacqua, Adriana Pinho, Daniel De Souza, Jano Medeiros, Sérgio Computer Science Program Graduate School of Engineering Federal University of Rio de Janeiro Rio de Janeiro RJ Brazil DCC/IM Institute of Mathematics Federal University of Rio de Janeiro Rio de Janeiro RJ Brazil DEL/POLI Department of Electronics Federal University of Rio de Janeiro Rio de Janeiro RJ Brazil

ISBN: (纸本)0780379411

In this paper, we start from a case study of an architecture company and move on to a framework of agents to identify and inform conceptual design. The processes and problems exhibited by the company involved are quite common and can be found in other similar companies. Our intent is to instrument the current process using agent technology, in an effort to improve global awareness during the conceptual design phase, allowing the designers to design so as to facilitate later steps and optimize the process as a whole. © 2003 IEEE.

关键词： Systems analysis

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The effects of process parameters on size, density, structure, and field emission properties of Pd-catalyzed carbon nanotubes synthesized by thermal chemical vapor deposition

The effects of process parameters on size, density, structur...

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International Conference on Vacuum Nanoelectronics (IVNC)

作者： S. Wei W.P. Kang W.H. Hofmeister J.L. Davidson Y.M. Wong J.H. Huang Interdisciplinary Graduate Program in Material Science Vanderbilt University Nashville TN USA Department of Electrical Engineering and Computer Science Vanderbilt University Nashville TN USA Department of Chemical Engineering Vanderbilt University Nashville TN USA Department of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan

In this study, various thicknesses of Pd catalytic films were deposited on Ti/Si substrates and pretreated with NH/sub 3/. The effects of catalyst deposition parameters and NH/sub 3/ pretreatment time (0, 1, and 10 minutes) on the size distribution of Pd catalytic particles, and subsequently, on the diameter and density of synthesized carbon nanotubes (CNTs) were investigated. The CNTs were synthesized by thermal CVD at 750/spl deg/C using methane (CH/sub 4/) as the carbon source, and a mixture of Ar/H/sub 2/ (80 vol.%/20 vol.%) as the carrier gas.

关键词： Carbon nanotubes Chemical vapor deposition Argon Hydrogen Scanning electron microscopy Morphology Substrates Materials science and technology Transmission electron microscopy Carbon dioxide

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"Inviteful" engineering: Student perceptions of industrial engineering

"Inviteful" engineering: Student perceptions of industrial e...

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ASEE 2004 Annual Conference and Exposition, "Engineering Researchs New Heights"

作者： Trytten, Deborah A. Shehab, Randa L. Rhoads, Teri Reed Fleener, M. Jayne Harris, Betty J. Reynolds, Anne Walden, Susan E. Moore-Furneaux, Sandra Kay Kvach, Elizabeth Warram, Kim R. Murphy, Teri J. University of Oklahoma School of Computer Science University of Oklahoma Department of Industrial Engineering Human Technology Interaction Center University of Oklahoma College of Engineering School of Industrial Engineering University of Oklahoma Graduate Studies and Research College of Education Women's Studies Program Department of Anthropology University of Oklahoma Dept. of Instructional Leadership University of Oklahoma Res. Institute for STEM Education University of Oklahoma Department of Communication University of Oklahoma Department of Mathematics University of Oklahoma

Interviews of twenty-six Industrial Engineering students and graduates were conducted during the first year of a three year study of the unexpected attainment of gender parity in the School of Industrial Engineering at the University of Oklahoma (OU). An analysis of the pattern of participant responses gives insight into industrial engineering (IE) student perceptions of IE. The perceptions were grouped into three broad themes: Career Profile, Discipline Profile, and Discipline Meta-Profile. The Career Profile includes the availability of multiple career paths and flexible careers in this discipline in addition to the potential for the attainment of status through entry into management. People-oriented, broad, and systems-oriented are terms that were used to describe the Discipline Profile. Discipline Meta-Profile is used to describe the participant's perception of other people's perceptions of industrial engineering (i.e. what IE students think other people think). These participants felt that other engineers think of IE as easy, or "imaginary" engineering. The participants also thought that the discipline is invisible, even to other engineers. While the meta-perception of IE might seem to be problematic for the discipline, many of the participants reject the meta-perception. Some participants recognized that IE's focus on people and systems is simply different than other engineering disciplines, not necessarily easier. Other participants felt the potential to enter into management outweighed the discipline meta-perception. One student summarized the response particularly well when he noted that IE is "inviteful" engineering.

关键词： Engineering education

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Implementation of new services to support ubiquitous computing for campus life

Implementation of new services to support ubiquitous computi...

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IEEE Workshop on Software Technologies for Future Embedded Systems

作者： Tack-Don Han Cheolho Cheong Jae-Won Ann Jong-Young Kim Hyung-Min Yoon Chang-Su Lee Hyon-Gu Shin Young-Jin Lee Hyoung-Min Yook Myoung-Hoon Jeon Jung Soo Choi Joo-Hyeon Lee Young-Woo Sohn Yoon Su Baek Sang-Yong Lee Eun-Dong Shin WooShik Kang SeongWoon Kim Department of Computer Science Yonsei University Seoul South Korea Dept. of Computer Science Yonsei University Seodaemun-gu Seoul KR Dept. of Comput. Sci. Yonsei Univ. South Korea Department of Clothing & Textiles Yonsei University Seoul South Korea Dept. of Clothing & Textiles Graduate Program in Cognitive Science Yonsei University Seoul South Korea Graduate Program in Cognitive Science Department of Mechanical Engineering Yonsei University Seoul South Korea Dept. of Mechanical Engineering Department of Psychology Yonsei University Seoul South Korea Dept. of Psychology ColorZip Media Inc. Seoul South Korea Yonsei University ColorZip Media Inc. Samsung Advanced Institute of Technology Seoul South Korea

ISBN: (纸本)0769521231

Many new services have emerged to realize ubiquitous computing environments, owing to the increasing supply of mobile devices and more widespread Internet and wireless network facilities. We introduce the U-Campus (ubiquitous computing for campus) service. This study has been conducted through interdisciplinary research by four participating departments. The U-campus project is part of the UTOPIA project (Ubiquitous computing TOwn Project: Intelligent context Awareness), which covers town- and city-wide environments. Currently, a test bed for U-campus has been constructed to support various services suck as U-profile, U-messaging and U-campus tour guide services. Students, professors, school staffs, and campus visitors can easily access the various available campus services by using image-based sensors and mobile devices such as CDMA cellular phones or WiFi smart phones. The major purpose of this research is to provide a context-aware U-campus environment to users by utilizing sensors and mobile devices currently available in the public sector and the marketplace.

关键词： Ubiquitous computing Intelligent sensors Mobile computing IP networks Web and internet services Wireless networks Context awareness Testing Educational institutions Image sensors

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Improving project design through process awareness agents

Improving project design through process awareness agents

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International Conference on computer Supported Cooperative Work in Design

作者： A. Vivacqua D. Pinho J. de Souza S. Medeiros Computer Science Program Graduate School of Engineering COPPE DCC/IM-Institute of Mathematics Federal University of Rio de Janeiro Rio de Janeiro Rio de Janeiro Brazil DEL/POLI-Department of Electronics and Computing Federal University of Rio de Janeiro Rio de Janeiro Rio de Janeiro Brazil

We start from a case study of an architecture company and move on to a framework of agents to identify and inform conceptual design. The processes and problems exhibited by the company involved are quite common and can be found in other similar companies. Our intent is to instrument the current process using agent technology, in an effort to improve global awareness during the conceptual design phase, allowing the designers to design so as to facilitate later steps and optimize the process as a whole.

关键词： Process design Companies Design engineering computer science Mathematics computer architecture Instruments Design optimization Feedback Delay

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