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IEEE International Symposium on Circuits and systems (ISCAS)

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

This paper presents eigenvector algorithms (EVAs) for blind deconvolution (BD) of multiple-input multiple-output infinite impulse response (MIMO-IIR) channels (convolutive mixtures). Using the idea of reference signals, the EVA is derived. Differently from the conventional researches on EVAs, one of the novel points of the paper is that the EVA using any reference signal is applied to the BD problem of the MIMO-IIR system, and then the validity of the EVA is shown.

关键词： Deconvolution MIMO Source separation Signal processing algorithms Signal processing Blind source separation Electrical equipment industry Electronics industry Industrial control Industrial electronics

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Incorporating a generic model of subcutaneous insulin absorption into the AIDA v4 diabetes simulator: 1. A prospective collaborative development plan

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Journal of Diabetes science and Technology 2007年第3期1卷 423-435页

作者： Lehmann, Eldon D. Tarín, Cristina Bondia, Jorge Teufel, Edgar Deutsch, Tibor Department of Imaging (MRU) Imperial College of Science Technology and Medicine (NHLI) Royal Brompton Hospital London United Kingdom Department of Imaging University of Toronto ON Canada ITEAM Technical University of Valencia (UPV) Valencia Spain Department of Systems Engineering and Control Technical University of Valencia (UPV) Valencia Spain Department of Informatics and Medical Technology Faculty of Health Care Semmelweis University Budapest Hungary

Introduction: AIDA v4 is an interactive educational diabetes simulator that has been made available, for over a decade, without charge via the Internet. The software is currently freely accessible at http://***. This report sets out a collaborative development plan to enhance the program with a new model of subcutaneous insulin absorption, which permits the simulation of rapidly acting and very long-acting insulin analogues, as well as insulin injection doses larger than 40 ***: A novel, generic, physiological subcutaneous insulin absorption model is overviewed and a methodology is proposed by which this can be substituted in place of the previously adopted insulin absorption model utilized within AIDA v4.3a. Apart from this substitution it is proposed to retain the existing model of the glucoregulatory system currently used in AIDA v4.3a. Results: Initial simulation results based on bench testing of this approach using MATLAB are presented for the exogenous insulin flow profile (Iex) following subcutaneous injections of a rapidly acting insulin analogue, a short-acting (regular) insulin preparation, intermediate-acting insulins (both Semilente and neutral protamine Hagedorn types), and a very long-acting insulin analogue. Discussion: It is proposed to implement this collaborative development plan - first by bench testing the approach in MATLAB and then by integrating the generic subcutaneous insulin absorption Iex model into the AIDA simulator in Pascal. The aim is to provide enhanced functionality and educational simulations of regimens utilizing novel insulin analogues, as well as injections larger than 40 units of insulin. © Diabetes Technology Society.

关键词： Absorption Computer Diabetes Insulin Model Simulation Software

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Human Intention Extracted from Electromyography Signals for Tracking Motion of Meal Assistance Robot

Human Intention Extracted from Electromyography Signals for ...

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2007 IEEE/ICME International Conference on Complex Medical engineering-CME2007(CME2007 第二届国际复合医学工程学术大会)

作者： X. Zhang B. Wang X.Y. Wang T. Sugi M. Nakamura Department of Automation East China University of Science and Technology Shanghai 200237 P. R. Ch Department of Electrical and Electronic Engineering Saga University Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan

The objective of the present study is to determine if surface electromyography (EMG) signals can be used for controlling the motion of the meal assistance robot. The power of four EMG channels were calculated and encoded into five commands to track the motion of meal assistance robot. The results indicated that by using EMG signals, the meal assistance robot was able to follow the movement desire of the subjects and help them to eat. This study has shown the possibility of extracting the features of EMG signals that reflect the subject's intent as control signals.

关键词： Humans Electromyography Tracking Robots Electrooculography Rehabilitation robotics Motion control control systems Feature extraction Muscles

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Soft magnetic bulk glassy alloy synthesized by flux melting and water quenching

Soft magnetic bulk glassy alloy synthesized by flux melting ...

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5th International Conference on Processing and Manufacturing of advanced Materials - THERMEC'2006

作者： Makino, Akihiro Bitoh, Teruo Lnoue, Akihisa Greer, A.L. Advanced Research Center of Metallic Glasses Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan Department of Machine Intelligence and System Engineering Faculty of Systems Science and Technology Akita Prefectural University Yurihonjo 015-0055 Japan Department of Materials Science and Metallurgy University of Cambridge Cambridge CB2 3QZ United Kingdom

ISBN: (纸本)0878494286

The flux treatment was applied to increase the glass-forming ability of a glassy [(Fe0.5Co0.5)0.75B0.20Si 0.05]96Nb4 alloy. The large bulk glassy specimen with diameter of 7.7 mm was prepared by water quenching the melt immersed in the molten flux of B2O3. The diameter of the specimens is approximately 1.5 times as large as the previous result, even though the cooling rate of copper mold casting should be much higher than that of water quenching. The critical cooling rate for a glassy phase is 150 - 170 K/s, which is much slower than 500 K/s without the flux treatment. The flux treatment improves the glass-forming ability by cleaning the molten metal where heterogeneous nucleation is difficult to take place.

关键词： Amorphous alloys

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TRACKING control IN THE PRESENCE OF NONLINEAR DYNAMIC FRICTIONAL EFFECTS: ROBOT EXTENSION

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Asian Journal of control 2008年第3期1卷

作者： M. Feemster D.M. Dawson A. Behal W. Dixon Matthew Feemster received the B.S degree in Electrical Engineering from Clemson University Clemson South Carolina in December 1994. Upon graduation he remained at Clemson University and received the M.S. degree in Electrical Engineering in 1997. During this time he also served as a research/teaching assistant. His research work focused on the design and implementation of various nonlinear control algorithms with emphasis on the induction motor and mechanical systems with friction present. He is currently working toward his Ph.D. degree in Electrical Engineering at Clemson University. Darren M. Dawson was born in 1962 in Macon Georgia. He received an Associate Degree in Mathematics from Macon Junior College in 1982 and a B.S. Degree in Electrical Engineering from the Georgia Institute of Technology in 1984. He then worked for Westinghouse as a control engineer from 1985 to 1987. In 1987 he returned to the Georgia Institute of Technology where he received the Ph.D. Degree in Electrical Engineering in March 1990. During this time he also served as a research/teaching assistant. In July 1990 he joined the Electrical and Computer Engineering Department and the Center for Advanced Manufacturing (CAM) at Clemson University where he currently holds the position of Professor. Under the CAM director's supervision he currently leads the Robotics and Manufacturing Automation Laboratory which is jointly operated by the Electrical and Mechanical Engineering departments. His main research interests are in the fields of nonlinear based robust adaptive and learning control with application to electro-mechanical systems including robot manipulators motor drives magnetic bearings flexible cables flexible beams and high-speed transport systems. Aman Behal was born in India in 1973. He received his Masters Degree in Electrical Engineering from Indian Institute of Technology Bombay in 1996. He is currently working towards a Ph.D in Controls and Robotics at Clemson University. His research focuses on the control of no

In this paper, we extend the observer/control strategies previously published in [25] to an n -link, serially connected, direct drive, rigid link, revolute robot operating in the presence of nonlinear friction effects modeled by the Lu-Gre model. In addition, we also present a new adaptive control technique for compensating for the nonlinear parameterizable Stribeck effects. Specifically, an adaptive observer/controller scheme is developed which contains a feedforward approximation of the Stribeck effects. This feedforward approximation is used in a composite controller/observer strategy which forces the average square integral of the position tracking error to an arbitrarily small value. Experimental results are included to illustrate the performance of the proposed controllers.

关键词： Friction compensation nonlinear control

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Effect Evaluation of Relaxation Training Based on Nonlinear Parameters of Electroencephalogram Waves

Effect Evaluation of Relaxation Training Based on Nonlinear ...

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2007 IEEE/ICME International Conference on Complex Medical engineering-CME2007(CME2007 第二届国际复合医学工程学术大会)

作者： L.L. Chen B. Wang J.Z. Zou M. Nakamura Department of Automation East China University of Science and Technology Shanghai 200237 P. R. Ch Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan

The purpose of this study is to evaluate the effect of music relaxation and to explore the relationship among visual analog scales, behavior performance and electroencephalogram (EEG) analysis. In the experiments, subjects did mental arithmetic until felt fatigued and then relaxed by listening to classical music. In order to analyze EEG signals, two nonlinear parameters L-Z Complexity and Approximate Entropy were calculated. It was found that different brain states had different nonlinear characteristics.

关键词： Electroencephalography Arithmetic Fatigue Electrodes Data analysis Entropy control engineering Impedance Sampling methods Cutoff frequency

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Feature Extractions for Estimating Human Behaviors via a Binocular Vision Head

Feature Extractions for Estimating Human Behaviors via a Bin...

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2007 International Conference on control, Automation and systems (ICCAS 2007), vol.5

作者： Keigo Watanabe Kiyotaka Izumi Kohei Kamohara Eisuke Yamada Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University Japan

We try to construct an estimation system of human behaviors, confining only the human behaviors that a robot vision head has met on, by extracting valuable information on the human behaviors from the binocular camera. Thus, in the present approach the human actions and objects related to the human behaviors are estimated by the images obtained from the camera, and their information are utilized for the human behavior estimation. Here, assume that, for the present estimation system of human behaviors, the information on a two-dimensional map that the human acts and behaves is known in advance and available.

关键词： Binocular vision head Estimation of human behaviors Feature extraction of human postures

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Quantitative Evaluation of Hand Movement on Visual Target Tracking for Patients with Parkinson's Disease

Quantitative Evaluation of Hand Movement on Visual Target Tr...

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2007 IEEE/ICME International Conference on Complex Medical engineering-CME2007(CME2007 第二届国际复合医学工程学术大会)

作者： J. Ide T. Sugi F. Shima M. Nakamura N. Murakami H. Shibasaki Department of Human Science Division of Social Welfare Seinan Gakuin University Fukuoka Japan Department of Electrical and Electronic Engineering Saga University Saga Japan Department of Advanced Systems Control Engineering Saga University Saga Japan Department of psychosomatic medicine Takeda Hospital Kyoto Japan

Deep brain stimulation (DBS) is a effective treatment method for patients with Parkinson's disease (PD). In this study, a quantitative evaluation for the availability of DBS operation to PD patients were done by use of a visual tracking test. Visual target with random trajectory was adopted and the hand movement of three PD patients were recorded in the state before and after surgery. Parameters related to the tremor, rigidity, akinesia and so on were calculated and the effect of DBS operation was quantitatively evaluated. Remarkable improvement was validated through the parameters. In addition to the above analysis, comparison of the motor function between PD patients and normal healthy person was also investigated.

关键词： Quantitative evaluation Parkinson's Disease Deep Brain Stimulation Visual tracking test

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Development of a new adaptation system for a manual wheelchair based on human body function

Development of a new adaptation system for a manual wheelcha...

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International Symposium on Micromechatronics and Human science (MHS)

作者： Makoto Sasaki Takehiro Iwami Goro Obinata Kazuto Miyawaki Kiyomi Matsuo Kazuo Kiguchi Department of Advanced Systems Control Engineering Saga University Saga Saga Japan Department of Mechanical Engineering Akita University Akita Japan Division of Integrated Projects EcoTopia Science Institute University of Nagoya Nagoya Aichi Japan Akita Research & Development Center Akita Research Institute of Advanced Technology Akita Japan

In this paper, we propose a new adaptation system for a manual wheelchair to reduce the load on the upper extremity of the user during wheelchair manipulation and also to increase the efficiency of the wheelchair propulsion. The proposed adaptation system is designed to provide optimal position of the handrim and the desired angular position of seat and backrest of the wheelchair based on the user's body function. Electromyogram signals from the user muscles, heart rate signals, oxygen uptake, amount of applied pressure on the seat and backrest, force/moment applied on the handrim, joint force/moment of the upper extremity and analytical results using the dynamic manipulating force ellipsoid and the driving force contribution figure are used as index parameters for the proposed adaptation system.

关键词： Wheelchairs Humans Propulsion Muscles Extremities Shoulder Heart rate Wrist Spinal cord injury Manuals

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Measurement of Temperature Differences between Micro-regions in Water Using Near-Infrared Spectroscopy

Measurement of Temperature Differences between Micro-regions...

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29th Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBS 2007), vol.11

作者： Naoto Kakuta Atsushi Ozaki Fuguo Li Hidenobu Arimoto Yukio Yamada Faculty of Engineering Kyushu University Fukuoka Japan Graduate School of Systems Life Sciences Kyushu University Fukuoka Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Tokyo Japan National Institute of Advanced Industrial Science and Technology Photonic Research Institute Tsukuba Japan

We have developed a method for measuring the temperature of micro-regions in aqueous solutions using near-infrared spectroscopy that enables us to measure the temperature of biological cells, tissues, and biochemical solutions in vitro. The measurement principle is based on the fact that the peak wavelength of the water absorption band with its center near 1450nm shifts with changes in temperature. The measurement system, which consists of a biological microscope and two spectrophotometers, can measure respective absorbance spectra for two areas that are each 80μm in diameter. We formed the temperature distribution in a 500-μm thick water film by heating an immersed Nichrome wire and measured the temperature difference between the two areas. The results of the measurement were compared to a calculated temperature distribution.

关键词： Temperature measurement Spectroscopy Wavelength measurement Area measurement Temperature distribution Water heating Biological cells Biological tissues In vitro Absorption

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