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2010 10th IEEE Conference on Nanotechnology, NANO 2010

作者： Song, Young Min Jang, Sung Jun Choi, Hee Ju Yu, Jae Su Lee, Yong Tak Department of Information and Communications Gwangju Institute of Science and Technology 1 Oryong-dong Buk-gu Gwangju 500-712 Korea Republic of Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology 1 Oryong-dong Buk-gu Gwangju 500-712 Korea Republic of Department of Electronic Engineering Kyung Hee University 1 Seocheon-dong Giheung-gu Yongin-si Gyeonggi-do 446-701 Korea Republic of Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology 1 Oryong-dong Buk-gu Gwangju 500-712 Korea Republic of

ISBN: (纸本)9781424470334

We demonstrate nanoscale antireflection structures on GaAs substrate with linearly graded effective refractive index using a lenslike shape transfer for broadband light-absorbing device application. From reflectance calculation of cone- and parabola-shaped subwavelength grating (SWG) structures, it is found that the parabola shaped structures has lower mean reflectance compared to that of the cone shaped structures over a wide wavelength range. The fabricated SWG structures with parabola shape show the reflectance of below 5 % in a 300-1200 nm wavelength range. ©2010 IEEE.

关键词： Reflection

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Thermal analysis and X-ray structural study on phase transitions in NH 4CsZnCl4

Thermal analysis and X-ray structural study on phase transit...

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12th International Meeting on Ferroelectricity, IMF-12 and the 18th IEEE International Symposium on Applications of Ferroelectrics, ISAF-18

作者： Teng, Y.-J. Suzuki, Y. Yamamoto, M. Kurihama, T. Ishikawa, E. Shimizu, F. Yamaguchi, T. Takashige, M. Department of Electronics and Information Engineering College of Engineering Chubu University 1200 Matsumoto-cho Kasugai Aichi 487-8501 Japan Department of Engineering Physics College of Engineering Chubu University 1200 Matsumoto-cho Kasugai Aichi 487-8501 Japan Department of Applied Chemistry College of Engineering Chubu University 1200 Matsumoto-cho Kasugai Aichi 487-8501 Japan Department of Electronics and Computer Science College of Science and Engineering Iwaki Meisei University 5-5-1 Iino Chuohdai Iwaki Fukushima 970-8551 Japan Department of Electrical Engineering School of Science and Engineering Meisei University 2-1-1 Hodokubo Hino Tokyo 191-8506 Japan

Ammonium cesium tetrachlorozincate (NH4CsZnCl4), one of the newABXY4-type in the (NH4)2SO 4 family, was crystallized by evaporating the aqueous solution at room temperature. The phase transition and crystal structure were studied by means of thermogravi-metric analysis, differential scanning calorimetry and single-crystal X-ray diffraction. As a result of thermal anomaly detection in the temperature range between 93 K and 473 K, anomalies corresponding to phase transitions were observed at around 216 K, 242 K and 458 K. It was also revealed that NH4CsZnCl4 belonged to the orthorhombic crystal system at room temperature and had lattice constants of a = 5.994(2) Å, b = 10.636(2) Å and c = 7.784(2) Å. © Taylor & Francis Group, LLC.

关键词： Thermogravimetric analysis

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Lyapunov stability analysis of higher-order 2-D systems

Lecture Notes in Control and Information Sciences

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Lecture Notes in Control and information sciences 2010年 398卷 197-206页

作者： Kojima, Chiaki Rapisarda, Paolo Takaba, Kiyotsugu Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Hongo Bunkyo-Ku Tokyo 113-0033 Japan Signals Images Systems Group School of Electronics and Computer Science University of Southampton Southampton SO171BJ United Kingdom Dept. of Applied Mathematics and Physics Graduate School of Informatics Kyoto University Kyoto 606-8501 Japan

We prove a necessary and sufficient condition for the asymptotic stability of a 2-D system described by a system of higher-order linear partial difference equations. We use the definition of asymptotic stability given by Valcher in "Characteristic Cones and Stability Properties of Two-Dimensional Autonomous Behaviors", IEEE Trans. Circ. Syst. - Part I: Fundamental Theory and Applications, vol. 47, no. 3, pp. 290-302, 2000. This property is shown to be equivalent to the existence of a vector Lyapunov functional satisfying certain positivity conditions together with its divergence along the system trajectories. We use the behavioral framework and the calculus of quadratic difference forms based on four variable polynomial algebra. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Asymptotic stability

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Urea monitor based on chemiluminescence and electrolysis as a marker for dialysis efficiency

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IEEJ Transactions on Sensors and Micromachines 2010年第1期130卷 11-16页

作者： Ozaki, Masahiro Okabayashi, Tohru Ishimaru, Teppei Hayashi, Kunihito Hori, JuN'Ya Yamamoto, Isao Nakagawa, Masuo Department of Applied Physics Faculty of Science Okayama University of Science 1-1 Ridai-cho Okayama 700-0005 Japan Department of Disaster System Science Faculty of Risk and Crisis Management Chiba Institute of Science 3 Shiomi-cho Choshi 288-0005 Japan Department of Clinical Engineering Sumida Clinic 3-3-113 Chu-o Soja719-1131 Japan Department of Information and Computer Engineering Faculty of Engineering Okayama University of Science 1-1 Ridai-cho Japan

We have developed a practical urea monitor based on a chemiluminescent (CL) reaction of urea and hypobromous acid produced by electrolysis of sodium bromide (NaBr) for measuring urea concentration in spent dialysate at set intervals. A reagent containing 4×10-2 M hypobromous acid is produced by electrolysis of an electrolyte containing 5.9 M NaBr and 0.2 M sodium hydroxide (NaOH). Chemiluminescence is emitted by injection of spent hemodialysis fluid (0.11 ml) into the reagent, and the CL-intensity is measured by a photomultiplier tube using the photon counting technique. The CL-intensity is proportional to the 0.9th power of the urea concentration between 7×10-4 and 2×10-2 M. The urea monitor can determine the urea concentration in spent dialysate samples collected from the waste line of a dialyzer, and the time for the intermittent measurements including the cleaning cycle of the reaction chamber is 3 min. The urea concentrations measured by the monitor are in close agreement with those measured by the conventional enzyme colorimetric method using urease for the spent dialysate collected during a hemodialysis treatment, and the correlation coefficient is 0.93. © 2010 the Institute of Electrical Engineers of Japan.

关键词： Urea

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information theoretic effects of jpeg compression on image steganography

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International Journal of computers and Applications 2010年第3期32卷 318-327页

作者： Moskowitz, I.S. Ahmed, F. Lafferty, P.A. Center for High Assurance Computer Systems Naval Research Laboratory Washington DC 20375 United States Applied Information Sciences Department Johns Hopkins University Applied Physics Laboratory 11100 Johns Hopkins Road Laurel MD 20723 United States Department of Electrical Engineering and Computer Science Catholic University of America Washington DC 20064 United States

Using information theory, we show that meaningful amounts of information hidden in the spatial bits surprisingly may survive JPEG compression. We prove these results by showing that information hidden in the lower ord... 详细信息

关键词： Steganography

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An agent-based architecture for knowledge management in context-aware business processes

An agent-based architecture for knowledge management in cont...

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International Conference on computer Supported Cooperative Work in Design

作者： Leonardo A. de C. Gatti Flávia Maria Santoro Vanessa T. Nunes NP2TEC - Research and Practice Group in Information Technology UNIRIO Rio de Janeiro Brazil NP2TEC-Research and Practice Group in Information Technology Department of Applied Informatics UNIRIO Federal University of Rio de Janeiro Rio de Janeiro Brazil COPPE - Systems Engineering and Computer Science Program UFRJ Rio de Janeiro Brazil

The main knowledge management challenges are to capture, store and reuse contextual knowledge generated during interactions that occur daily in an organization. In this paper, we propose an activity context-aware architecture to support knowledge management in working processes. The required features for this architecture are processing, reasoning and sharing contextual knowledge involving information about activities performed. We also present results from evaluation of our proposal — A-CoBrA — for a specific domain.

关键词： Knowledge management computer architecture Context modeling Collaborative work Proposals information technology Informatics Service oriented architecture Ontologies Knowledge engineering

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Inferring network connectivity using kinetic Ising models

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BMC Neuroscience 2010年第1期11卷 1-2页

作者： John A Hertz Andreas Thorning Yasser Roudi Joanna Tyrcha Erik Aurell Hong-Li Zeng Niels Bohr Institute Copenhagen University 2100 Copenhagen Ø Denmark Nordita 106 91 Stockholm Sweden Institute of Mathematics Stockholm University 106 91 Stockholm Sweden Department of Computational Biology Royal Institute of Technology 106 91 Stockholm Sweden Department of Information and Computer Science Helsinki University of Technology 02015 TKK Espoo Finland Department of Applied Physics Helsinki University of Technology 02015 TKK Espoo Finland

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Cooperative recombination of electron-hole pairs in semiconductor quantum wells under quantizing magnetic fields

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Physical Review B 2010年第15期81卷 155314-155314页

作者： Y. D. Jho X. Wang D. H. Reitze J. Kono A. A. Belyanin V. V. Kocharovsky Vl. V. Kocharovsky G. S. Solomon Department of Information and Communications Gwangju Institute of Science and Technology Gwangju 500-712 Republic of Korea Department of Physics University of Florida Gainesville Florida 32611 USA National High Magnetic Field Laboratory Florida State University Tallahassee Florida 32310 USA Department of Electrical and Computer Engineering Rice University Houston Texas 77005 USA Department of Physics Texas A&M University College Station Texas 77843 USA Institute of Applied Physics Russian Academy of Sciences 603950 Nizhny Novgorod Russia Joint Quantum Institute NIST & University of Maryland Gaithersburg Maryland 20899 USA

We present results of detailed investigations of light emission from semiconductor multiple quantum wells at low temperatures and high magnetic fields excited by intense femtosecond laser pulses. The intensity and linewidth as well as the directional and statistical properties of photoemission strongly depended on the magnetic field strength and pump laser fluence. We also investigated the effects of spot size, temperature, excitation geometry, and excitation pulse width on the emission properties. The results suggest that the initially incoherent photoexcited electron-hole pairs spontaneously form a macroscopic coherent state upon relaxation into the low-lying magnetoexcitonic states, followed by the emission of a superfluorescent burst of radiation. We have developed a theoretical model for superfluorescent emission from semiconductor quantum wells, which successfully explained the observed characteristics.

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Public Infrastructure for Monte Carlo Simulation : publicMC@BATAN

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AIP Conference Proceedings 2010年第1期1244卷 190-195页

作者： A. A. Waskita N. A. Prasetyo Z. Akbar L. T. Handoko aCenter for Development of Nuclear Informatics3 National Nuclear Energy Agency Kompleks Puspiptek Serpong Tangerang 15310 Indonesia bCenter for Applied Aerospace Technology National Space and Aviation Agency4 Jl. Raya LAPAN‐Rumpin Tromol Pos 7 Serpong Tangerang 15310 Indonesia cFaculty of Computing Science5 University of Indonesia Kampus UI Depok Depok 16424 Indonesia dGroup for Theoretical and Computational Physics Research Center for Physics6 Indonesian Institute of Sciences Kompleks Puspiptek Serpong Tangerang 15310 Indonesia eGroup for Bioinformatics and Information Mining7 Department of Computer and Information Science University of Konstanz Box D188 D‐78457 Konstanz Germany fDepartment of Physics8 University of Indonesia Kampus UI Depok Depok 16424 Indonesia

The first cluster‐based public computing for Monte Carlo simulation in Indonesia is introduced. The system has been developed to enable public to perform Monte Carlo simulation on a parallel computer through an integrated and user friendly dynamic web interface. The beta version, so called publicMC@BATAN, has been released and implemented for internal users at the National Nuclear Energy Agency (BATAN). In this paper the concept and architecture of publicMC@BATAN are presented.

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Quantum demonstration of a bio-molecular solution of the satisfiability problem on spin-based ensemble

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Chinese physics B 2009年第12期18卷 5173-5178页

作者：任婷婷冯芒张云龙罗军 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematicsthe Chinese Academy of Sciences Center for Cold Atom Physics the Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences Department of Computer Science and Information Engineering National Kaohsiung University of Applied Sciences

DNA computation （DNAC） has been proposed to solve the satisfiability （SAT） problem due to operations in parallel on extremely large numbers of strands. This paper attempts to treat the DNA-based bio-molecular solution for the SAT problem from the quantum mechanical perspective with a purpose to explore the relationship between DNAC and quantum computation （QC）. To achieve this goal, it first builds up the correspondence of operations between QC and DNAC. Then it gives an example for the case of two variables and three clauses for details of this theory. It also demonstrates a three-qubit experiment for solving the simplest SAT problem with a single variable on a liquid-state nuclear magnetic resonance ensemble to verify this theory. Some discussions are made for the potential application and for further exploration of the present work.

关键词： DNA computation liquid-state nuclear magnetic resonance SAT problem quantum computation

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