检索结果-内蒙古大学图书馆

SICE Annual Conference

作者： Nishantha Nanayakkara Fatin Ali Mohamed Masatoshi Nakamura Department of Electrical Engineering University of Moratuwa Sri Lanka Industrial Energy & Climate Change Branch Vienna International Centre Vienna Austria Research Institute of Systems Control Institute of Advanced Research and Education University of Saga Saga Japan

Most of the African countries have less than 10% of electrification and 90% of the electrified areas are confined to capital city, so that access to electricity is only confined to main towns. With the initiative of United Nations Industrial Development Organization (UNIDO), an attempt was made to deviate from the accepted norms of project financing, but participatory development of rural villages by utilizing their own hydro resources for power generation. Access to electricity, affordability, appropriate standards in construction and installation and quality of power are key factors in such development projects. Three small hydro projects in Rwanda have been completed under UNIDO umbrella, giving electricity to around 750 households from each project.

关键词： Modeling Sustainable development Government Power generation Electrical equipment industry Industrial control Construction industry Large-scale systems Project management Electronic mail

来源：评论

学校读者我要写书评

暂无评论

Orthogonal-type robot with a CAD/CAM-based position/force controller

Orthogonal-type robot with a CAD/CAM-based position/force co...

引用

IEEE Symposium on Computational Intelligence in control and Automation, CICA

作者： Fusaomi Nagata Shintaro Tani Takanori Mizobuchi Tetsuo Hase Zenku Haga Masaaki Omoto Keigo Watanabe Department of Electronics and Computer Science Tokyo University of Science Yamaguchi Japan Research and Development Center Meiho Company Limited Nogata Japan R&D Center Meiho Co. Ltd. Nogata Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University Saga Japan

In this paper, a new desktop orthogonal-type robot with a CAD/CAM-based position/force controller is presented for finishing small metallic molds with curved surface. The robot consists of a three-axis robot whose single one has a high position accuracy of 1 mum, which means that it can perform higher resolutions of position and force, compared to general industrial robots. A thin wood stick tool with a ball-end tip is attached to the z-axis through a force sensor. The control system of the robot is comprised of a force feedback loop, position feedback loop and position feedforward loop. The force feedback loop controls the polishing force consisting of tool contact force and kinetic friction forces. The position feedback loop controls the position in pick feed direction. Further, the position feedforward loop leads the tool tip along a spiral path. We first evaluate the backlash that causes inaccuracy in position at the tip of the abrasive tool, by simply measuring the position and force. Next, a surface following control experiment along a lens mold is conducted, in which the mold has axis-symmetric concave areas. Finally, a LED lens mold is further finished by using the proposed system in order to demonstrate the performance and promise.

关键词： Force control Service robots Force sensors Force feedback Robot sensing systems Feedback loop Force measurement Lenses Surface finishing Electrical equipment industry

来源：评论

学校读者我要写书评

暂无评论

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

Automatic sleep stage determination for sleep apnea syndrome...

引用

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

来源：评论

学校读者我要写书评

暂无评论

Scaling reduction of port-Hamiltonian systems for numerical calculation

Scaling reduction of port-Hamiltonian systems for numerical ...

引用

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

来源：评论

学校读者我要写书评

暂无评论

Swinging-Up and Stabilization control Based on Natural Frequency for Pendulum systems

Swinging-Up and Stabilization Control Based on Natural Frequ...

引用

2009 American control Conference (ACC 2009)

作者： Noriko Matsuda Masaki Izutsu Jun Ishikawa Katsuhisa Furuta Karl J. Astrom Department of Computer and Systems Engineering Tokyo Denki University Ishizaka Hatoyama Saitama 350-0394 Japan Department of Advanced Multidisciplinary Engineering Tokyo Denki University Ishizaka Hatoyama Saitama 350-0394 Japan Tokyo Denki University 2-2 Nishiki Kanda Chiyoda Tokyo 101-8457 Japan Department of Automatic Control LTH Lund University Box 118 SE-221 00 Lund Sweden

ISBN: (纸本)9781424445233

This paper proposes a swinging-up and stabilization method for inverted pendulums based on a pendulum oscillation model. A normalized oscillation model is derived by using only one model parameter, i.e., the natural frequency of a pendulum. As a control strategy, energy-based control with a normalized energy model is utilized for the swinging-up from the pendant position. For the stabilization of the pendulum at the upright position, variable structure system (VSS) type adaptive control is designed through the linearized oscillation model. Validity of the proposed method has been confirmed by simulation of an inverted pendulum on a cart. Swinging-up and stabilization control was realized by using only the natural frequency of the pendulum, and the proposed method was also confirmed to be robust against parameter perturbation for the natural frequency. Stability of the designed controller was proven for a given condition that angular velocity of the pendulum has an upper bound.

关键词： control systems Frequency Variable structure systems Adaptive control Error correction Stability analysis Modeling Robust control Angular velocity control Angular velocity

来源：评论

学校读者我要写书评

暂无评论

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...

引用

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

来源：评论

学校读者我要写书评

暂无评论

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...

引用

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

来源：评论

学校读者我要写书评

暂无评论

Optical mouse sensor for non-contact tactile sensing

引用

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

来源：评论

学校读者我要写书评

暂无评论

Satellite torque management using solar array thermal radiation control

Satellite torque management using solar array thermal radiat...

引用

作者： Wehner, James Von Eggers Rudd, Lael Harris, Christian Foroozan, Sam Northrop Grumman Corporation Los Angeles CA 90067 United States James Webb Space Telescope Observatory Systems Engineering and Ground Operations Lead R8/2789 One Space Park Redondo Beach CA 90278 United States Advanced VMS and Flight Controls One Hornet Way W6/9V21 El Segundo CA 90245 United States Space and Optical Systems Center M2/2311 One Space Park Redondo Beach CA 90278 United States Power and Control Verification Department R9/2960 G One Space Park Redondo Beach CA 90278 United States

ISBN: (纸本)9781563479786

An innovative method for taking advantage of the torques produced by the thermal radiation of solar arrays is described. The method takes advantage of the difference in thermal properties between converting and un-converting portions of the solar arrays. Since satellites size their arrays for worst case conditions, a significant amount of the solar array is typically unused throughout most of the mission life. By proper distribution of which cells are used to convert electricity, useful manageable torque is produced. It is shown that this method provides torques which are on the same order as solar disturbance torques, making the concept ideal for obviating the need for momentum unloading fuel for geostationary satellites. Copyright © 2009 by Northrop Grumman Corporation.

关键词： Torque

来源：评论

学校读者我要写书评

暂无评论

Automatic interpretation of hyperventilation-induced electroencephalogram fitting to visual inspection

Automatic interpretation of hyperventilation-induced electro...

引用

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

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：