检索结果-内蒙古大学图书馆

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

Human Intention Extracted from Electromyography Signals for ...

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

来源：评论

学校读者我要写书评

暂无评论

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

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

引用

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

来源：评论

学校读者我要写书评

暂无评论

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

引用

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

来源：评论

学校读者我要写书评

暂无评论

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

Effect Evaluation of Relaxation Training Based on Nonlinear ...

引用

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

来源：评论

学校读者我要写书评

暂无评论

Feature Extractions for Estimating Human Behaviors via a Binocular Vision Head

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

引用

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

来源：评论

学校读者我要写书评

暂无评论

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

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

引用

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

来源：评论

学校读者我要写书评

暂无评论

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...

引用

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

来源：评论

学校读者我要写书评

暂无评论

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

Measurement of Temperature Differences between Micro-regions...

引用

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

来源：评论

学校读者我要写书评

暂无评论

Experimental verifications on control and sensing of bucky gel actuator/sensor

Experimental verifications on control and sensing of bucky g...

引用

2007 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Norihiro Kamamichi Masaki Yamakita Kinji Asaka Zhi-Wei Luo Toshiharu Mukai Bio-mimetic Control Research Center (BMC) The Institute of Physical and Chemical Research (RIKEN) Nagoya Japan Department of Robots and Mechatronics School of Future Science Tokyo Denki University Tokyo Japan BMC RIKEN Japan Department of Mechanical and Control Engineering Graduate School of Science Tokyo Institute of Technology Tokyo Japan BMC RIKEN Research Institute for Cell Engineering National Institute of Advanced Industrial Science and Technology (AIST) Odaka Japan Department of Computer and Systems Engineering Kobe University Kobe Japan

Bucky gel actuator is a novel electro-active polymer (EAP), which is a low-voltage driven dry soft actuator. Its device has a bimorph structure with polymer-supported bucky gel electrodes and a polymer-supported ionic gel electrolyte. It can be fabricated by layer-by-layer casting, to form any shape easily. In addition, the bucky gel device generates electromotive force when bending, and then it also can be used as a sensor. Since sensor and actuator functions exist in a same device, flexible and miniature integrated actuator-sensor systems for soft robotics can be constructed easily. In this study, we conduct some experiments to verify the possibility of the bucky gel actuator/sensor. Feedback controls of the actuator are demonstrated and the characteristics of the sensor are investigated. By utilizing both functions of the actuator and the sensor, feedback control based on the sensor signal is demonstrated.

关键词： Actuators Sensor phenomena and characterization Polymer gels Feedback control Electrodes Casting Shape Force sensors Sensor systems Robot sensing systems

来源：评论

学校读者我要写书评

暂无评论

Robust Super-exponential methods for blind deconvolution of MIMO-FIR systems with Gaussian noise

Robust Super-exponential methods for blind deconvolution of ...

引用

European Signal Processing Conference (EUSIPCO)

作者： Kiyotaka Kohno Yujiro Inouye Mitsuru Kawamoto Department of Electronic and Control Systems Engineering Shimane University Matsue Shimane Japan Shimane Daigaku Matsue Shimane JP Information Technology Research Institute National Institute of Advanced Industrial Science and Technology Central 2 Tsukuba Ibaraki Japan

The so called “super-exponential” methods (SEMs) are attractive methods for solving multichannel blind deconvolution problem. The conventional SEMs, however, have such a drawback that they are very sensitive to Gaussian noise. To overcome this drawback, the robust super-exponential methods (RSEMs) were proposed for single-input single-output infinite impulse response (SISO-IIR) channels and for multi-input multi-output (MIMO) static channels (instantaneous mixtures). While the conventional SEMs use the second-and higher-order cumulants of observations, the RSEMs use only the higher-order cumulants of observations. Since higher-order cumulants are insensitive to Gaussian noise, the RSEMs are robust to Gaussian noise. We proposed an RSEM extended to the case of MIMO-FIR channels (convolutive mixtures). To show the validity of the proposed RSEM, some simulation results are presented.

关键词： Gaussian noise Robustness Deconvolution Equalizers Signal to noise ratio MIMO

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：