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SICE Annual Conference

作者： Gou Nishida Daiji Ichishima Kenji Kashima Kenji Fujimoto Masaki Yamakita Bernhard Maschke Ryojun Ikeura Robotic Motion Laboratory RTC Advanced Science Institute RIKEN Japan Research and Development Center Sumitomo Heany Industries Limited Japan Department of Mechanical and Environmental Informatics Graduate School of Information Science and Engineering Tokyo Institute of Technology Japan Department of Mechanical Science and Engineering Graduate School of Engineering University of Nagoya Japan Department of Mechanical and Control Systems Engineering Tokyo Institute of Technology Japan Laboratoire dAutomatique et de Génie des Procédés UMR CNRS 5007 Université Claude Bemard Lyon 1 France Department of Mechanical Engineering Mie University Japan

We present a novel reduction method of port-Hamiltonian systems by a renormalization group. The reduced system is suitable for a fast numerical calculation in a mesoscopic scale. Especially, we aim at the development of renormalized molecular dynamics with controls. First, we define a renormalized Hamiltonian with coarse graining. Next, we introduce a renormalized canonical Hamiltonian system. Moreover, we clarify the relationship between the renormalized Hamiltonian system and a Dirac structure. Finally, we obtain necessary conditions of boundary connections for each renormalized Hamiltonian system with different scales.

关键词： Microscopy Solids control systems Robot motion Research and development Electrical equipment industry Informatics Information science systems engineering and theory Mechanical engineering

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Automatic sleep stage determination for sleep apnea syndrome patients: Multivariate probability distribution based on expert knowledge

Automatic sleep stage determination for sleep apnea syndrome...

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SICE Annual Conference

作者： Bei Wang Takenao Sugi Fusae Kawana Xingyu Wang Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Clinical Physiology Toranomon Hospital Tokyo Japan Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan

In this study, the multivariate probability distribution was investigated to develop the expert knowledge-based automatic sleep stage determination technique. The ultimate purpose is to develop adaptive automatic sleep stage determination algorithm for clinical practice. Gaussian distribution was adopted to realize automatic parameter selection while Cauchy distribution was adopted to estimate the parameter distribution. The different usage of multivariate probability distribution of Gaussian and Cauchy distribution presented effectiveness for automatic sleep stage determination.

关键词： Sleep apnea Probability distribution Inspection Electronic mail Hospitals Parameter estimation Electroencephalography Electromyography Physiology Gaussian distribution

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∞ model reduction for linear parameter-varying systems with distributed delay

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International Journal of control 2009年第3期82卷 408-422页

作者： Ligang Wu Peng Shi Huijun Gao & Junling Wang Space Control and Inertial Technology Research Center Harbin Institute of Technology Harbin 150001 P. R. China Faculty of Advanced Technology University of Glamorgan Pontypridd CF3 1DL UK Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta Canada College of Nuclear Science and Technology Harbin Engineering University Nantong Street 145 Harbin 150001 China

This paper is concerned with the ∞ model reduction for linear parameter-varying (LPV) systems with both discrete and distributed delays. For a given stable system, our attention is focused on the construction of reduced-order models, which approximate the original system well in an ∞ norm sense. First, a sufficient condition is proposed for the asymptotic stability with an ∞ performance of the error system by using the parameter-dependent Lyapunov functional method. Then, the decoupling technique is applied, such that there does not exist any product term between the Lyapunov matrices and the system matrices in the parametrised linear matrix inequality (PLMI) constraints; thus a new sufficient condition is obtained. Based on the new condition, two different approaches are developed to solve the model reduction problem. One is the convex linearisation approach and the other is the projection approach. Finally, a numerical example is provided to demonstrate the effectiveness of the proposed design method

关键词： Distributed delay model reduction parameterised linear matrix inequality (PLMI) linear parameter-varying (LPV) systems

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What's in a name

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Nature Biotechnology 2009年第12期27卷 1071-1073页

作者： Arkin, Adam Berry, David Church, George Arnold, Frances Boldt, Joachim Müller, Oliver Ellington, Andrew D. Endy, Drew Fussenegger, Martin Gold, E. Richard Greenwood, Jim Lee, Sang Yup Lim, Wendell Minshull, Jeremy Murray, Thomas H. Poste, George Prather, Kristala L.J. El-Samad, Hana Smolke, Christina Weiss, Ron Department of Bioengineering University of California Berkeley CA United States Department of Genetics Harvard Medical School Boston MA United States Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA United States Department of Medical Ethics History of Medicine Freiburg University United States Institute for Cellular and Molecular Biology University of Texas Austin TX United States Department of Bioengineering Stanford University Stanford CA Switzerland Swiss Federal Institute of Technology Zurich Switzerland Faculty of Law McGill University Montreal QC Canada Biotechnology Industry Organization Washington DC United States Korea Advanced Institute of Science and Technology Daejeon Korea Republic of Department of Cellular and Molecular Pharmacology University of California San Francisco CA United States Hastings Center Garrison NY United States Complex Adaptive Systems Initiative Arizona State University Phoenix AZ United States Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA United States University of California San Francisco CA United States Department of Biological Engineering Massachusetts Institute of Technology Cambridge MA United States

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Bipolar EEG Analysis Based on Cross Spectrum: Focal Detection of Slowing Wave for Automatic EEG Interpretation

Bipolar EEG Analysis Based on Cross Spectrum: Focal Detectio...

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Bei Wang Takenao Sugi Xingyu Wang Akio Ikeda Takashi Nagamine Hiroshi Shibasaki Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Neurology Kyoto University Kyoto Japan Department of System Neuroscience Sapporo Medical University Hokkaido Japan Takeda General Hospital Kyoto Japan Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan

ISBN: (纸本)9781424441327

EEG is represented to referential derivation with ear lobe reference and bipolar derivations for quantitative interpretation. When the ear lobe was activated, referential derivation with ear lobe reference was contaminated by ear lobe artifacts. In this study, the focus and extension of EEG components were estimated based on the cross spectrum of bipolar derivation. A referential derivation was constructed by choosing the electrodes out of the focus and extension area to obtain the distribution of EEG components. The constructed referential derivation can avoid the artifacts of ear lobe activation for quantitative EEG interpretation.

关键词： Electroencephalography Ear Electrodes Automation Educational technology Biomedical engineering Nervous system Neuroscience Hospitals Medical control systems

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Automatic Interpretation of Dominant Rhythm in Awake Electroencephalogram Based on Coherence and Phase Analysis for Bipolar Derivation

Automatic Interpretation of Dominant Rhythm in Awake Electro...

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Xiu Zhang Xingyu Wang Takashi Nagamine Takenao Sugi Hiroshi Shibasaki Akio Ikeda Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Department of System Neuroscience Sapporo Medical University Hokkaido Japan Department of Electrical and Electronic Engineering Saga University Saga Japan Takeda General Hospital Kyoto Japan Department of Neurology Kyoto University Kyoto Japan Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan

ISBN: (纸本)9781424441327

Automatic electroencephalogram (EEG) interpretation based on referential derivation is easily interfered by ear lobe activation. In order to improve the quantitative EEG interpretation of dominant rhythm, bipolar derivation was proposed in this study. Coherence and phase obtained from cross spectrum analysis were used to determine the focus of dominant rhythm. Existence, peak frequency, amplitude and asymmetry of dominant rhythm were interpreted within the frequency band from 4 to 13Hz. The automatic interpretation of dominant rhythm based on bipolar derivation was compared with the visual inspection of electroencephalographer (EEGer) and showed good consistence.

关键词： Rhythm Auditory system Signal synthesis Testing Speech processing Deafness Aging Signal analysis Biomedical engineering Instruments

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Optical mouse sensor for non-contact tactile sensing

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IEEJ Transactions on Sensors and Micromachines 2008年第9期128卷 358-363+3页

作者： Xin, Wang Shida, Katsunori Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University 1 Honjo-machi Saga 840-8502 Japan

Instead of functioning as part of a pointing device in computing, the optical mouse sensor is employed for non-contact tactile sensing in this study. The translation direction, the height and the category of an object surface can be sensed. It is an interesting idea to make an optical mouse sensor work in the manner of a human hand but in a non-contact way to "feel" the object surface. Based on the data table obtained from the experiments, the translation direction is calculated and the nonlinearity of the translation direction sensing is studied. It can be concluded that the resolution of an optical mouse sensor is direction-related. The feasibility of surface height measurement is analyzed and the optical mouse sensor can be used for crack detection on a plane surface. Height variation of 0.2mm can be detected. Besides, the feasibility of the optical mouse sensor for surface discrimination is proposed. © 2008 The Institute of Electrical Engineers of Japan.

关键词： Crack detection

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Automatic interpretation of hyperventilation-induced electroencephalogram fitting to visual inspection

Automatic interpretation of hyperventilation-induced electro...

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SICE Annual Conference

作者： Xiu Zhang Xingyu Wang Takenao Sugi Akio Ikeda Takashi Nagamine Hiroshi Shibasaki Masatoshi Nakamura Department of Automation East China University of Science and Technology Shanghai China Research Institute of Systems Control Institute of Advanced Research and Education Saga University Saga Japan Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Neurology Graduate School of Medicine Kyoto University Kyoto Japan Department of System Neuroscience Sapporo Medical University Hokkaido Japan Takeda General Hospital Kyoto Japan

Quantitative analysis and detection of abnormalities for electroencephalogram (EEG) recordings during evoked activities are essential for clinical diagnosis on neurological disorders. However, the process of interpreting EEG is time consuming and requires experienced electroencephalographers (EEGers). In this study, a method of automatic EEG interpretation during hyperventilation was proposed. The purpose is to provide a quantitative interpretation of EEG which is able to conform to EEGers' visual inspection. The final integrated results of automatic interpretation were compared with EEGers' evaluation, and showed high consistence.

关键词： Inspection Electroencephalography Medical diagnostic imaging Electrodes Hospitals Clinical diagnosis Scalp Rhythm Automation Educational technology

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Using student generated audio to enhance learning

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engineering Education 2009年第2期4卷 52-61页

作者： A. Rossiter A. Nortcliffe A. Griffin A. Middleton Department of Automatic Control and Systems Engineering (ACSE) University of Sheffield Mappin Street Sheffield UK. Email: j.a.rossiter@shef.ac.uk Faculty of Art Computing Engineering and Science (ACES) Sheffield Hallam University Sheffield UK. Email: a.nortcliffe@shu.ac.uk LeTs University of Sheffield 5 Favell Road Sheffield UK Learning Teaching Institute Sheffield Hallam University Sheffield UK. Email: a.j.middleton@shu.ac.uk

This paper explores the issues surrounding the use of audio in learning and offers an alternative to podcasting. It considers the practicalities of enabling students to generate their own audio recordings and the potential to enhance and personalise learning in a self directed way that suits their individual learning styles. There is some discussion of hardware and its accessibility, cost and ease of use as well as protocols on what audio can/cannot be recorded or shared amongst students. The paper explores different types of scenario where recording can be used beneficially and uses real student case studies to demonstrate its efficacy, as perceived by the students. There is also particular emphasis on the benefits to specific student groups, including those with English as an additional language or students with learning difficulties. In summary the paper gives evidence of how student generated audio can be embedded into the curriculum and the benefits it can bring.

关键词： audio recording learning technology

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Recently developed approaches for solving blind deconvolution of MIMO-IIR systems: Super-exponential and eigenvector methods

Recently developed approaches for solving blind deconvolutio...

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IEEE International Symposium on Circuits and systems

作者： Kawamoto, Mitsuru Inouye, Yujiro Kohno, Kiyotaka National Institute of Advanced Industrial Science and Technology (AIST) Department of Electronic and Control Systems Engineering Shimane University Japan Department of Electronic Control Engineering Yonago National College of Technology Japan

ISBN: (纸本)9781424420780

Recently we develop two kinds of approaches, that is, the super-exponential method (SEM) and the eigenvector method (EVM), of which both can achieve the blind deconvolution for MIMO-IIR systems. It is shown that these methods are closely related each other. Based on this fact, we propose a new SEM incorporated with the EVM. Simulation results will be presented for showing the validity of the proposed method.

关键词： Eigenvalues and eigenfunctions

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