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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： H. Ogawa Y. Yonezawa H. Maki H. Sato W.M. Caldwell Department of Information and Intellectual Systems Hiroshima Institute of Technology Hiroshima Japan Department of Electronics Hiroshima Institute of Technology Hiroshima Japan Department of Clinical Engineering International Trinity College Hiroshima Japan Department of Human Living System Design Faculty of Design Kyushu University Fukuoka Japan Caldwell Biomedical Electronics Hurricane WV USA

A new safety support system has been developed to detect and transmit notification of a wandering elderly person's location. The system employs a low transmitting power mobile phone (PHS) and a personal computer (PC). The PHS is carried with the elderly person as a pendant. The PHS location is identified within 100m from the receiving antenna ID. Therefore, the system can detect whether the wandering elderly person is in or out of their home. When the wandering elderly person is away from home, the system automatically informs the caregiver via voice mode and sends the wandering elderly person's location map by e-mail.

关键词： Safety Senior citizens Mobile handsets Internet Microcomputers Receiving antennas Mobile antennas Electronic mail Alzheimer's disease Dementia

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Imitative behavior generation for a vision-based partner robot

Imitative behavior generation for a vision-based partner rob...

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IEEE International Workshop on Intelligent Robots and systems (IROS)

作者： N. Kubota Y. Nojima F. Kojima PREST Japan Science and Technology Corporation Japan Department of Mechanical Engineering Tokyo Metropolitan University Hachioji Tokyo Japan Division of Electrical Engineering Osaka Prefecture University Sakai Osaka Japan Department of Mechanical and System Design Engineering Kobe University Kobe Japan

This paper proposes a method for generating behaviors based on imitation of a partner robot interacting with a human. First of all, we discuss the role of imitation, and explain the method for imitative behavior generation of the robot based on computational intelligence. The robot searches for a human by using a CCD camera. A human hand motion pattern is extracted from a series of images taken from the CCD camera. Next, the position sequence of the extracted human hand is used as inputs to a spiking neural network in order to recognize it as a gesture. Furthermore, the trajectory for a behavior is generated and updated by a steady-state genetic algorithm based on human motions. Furthermore, a self-organizing map is used for clustering human hand motion patterns as gestures. Finally, we show several experimental results of imitative behavior generation through interaction with a human.

关键词： Robot vision systems Charge coupled devices Charge-coupled image sensors Cameras Human robot interaction Intelligent robots Computational intelligence Neural networks Steady-state Genetic algorithms

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A practical stereo scheme for obstacle detection in automotive use

A practical stereo scheme for obstacle detection in automoti...

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International Conference on Pattern Recognition

作者： H. Nakai N. Takeda H. Hattori Y. Okamoto K. Onoguchi Multimedia Laboratory Corporate Research & Development Center Toshiba Corporation Japan Broadband System LSI Development Center Semiconductor Company Toshiba Corporation Japan Department of Electrical and Information System Engineering Faculty of Science and Technology Hirosaki University Japan

We propose a novel stereo scheme for obstacle detection which is aimed at practical automotive use. The basic methodology involves simple region matching between images, observed from a stereo camera rig, where it is assumed the images are related by a pseudo-projective transform. It provides an effective solution for determining boundaries of obstacles in noisy conditions, e.g. caused by weather or poor illumination, which conventional planar projection approaches cannot cope with. The linearity of the camera model also contributes significantly to compensation of road inclination. Essentially, precise lane detection and prior knowledge concerning obstacles or ambient conditions are unnecessary and the proposed scheme is therefore applicable to a wide variety of outdoor scenes. We have also developed a multi-VLIW processor that fulfills the essential specifications for automotive use. Our scheme for obstacle detection is largely reflected in the processor design so that real-time on-board processing can be realized with acceptable cost to both automobile users and manufacturers. The implementation of a prototype and experimental results illustrates our method.

关键词： Automotive engineering Cameras Lighting Linearity Roads Layout Process design Costs Automobiles Manufacturing processes

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A new model for different speed and accuracy requirements in pointing tasks

A new model for different speed and accuracy requirements in...

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International Conference on Computer and Information technology (CIT)

作者： Xiangshi Ren Jing Kong Xing-Qi Jiang Zhen Liu Dongfeng Cai Department of Information System Engineering Kochi University of Technology Kochi Japan Department of Economics Asahikawa University Asahikawa Hokkaido Japan Faculty of Human Environment Nagasaki Institute of Applied Science Nagasaki Japan Shenyang Institute of Aeronautical Engineering Shenyang China

ISBN: (纸本)0769522165

Fitts' law is a tool for evaluating pointing devices, which has been accepted and applied widespread in the human computer interaction field. However, there are still some problems embarrassing the researchers in this field about its validity. One problem is derived from the request on input hits' distribution (i.e. spatial constraint) by the origin of Fitts' law. Therefore, a new model based on temporal distribution was developed to alter the traditional models. We carried out an experiment including five tasks with different requirement on speed and accuracy to test the effect of the new model. The new model and the traditional models are compared with both the mixed data and the individual task data of the experiment using AIC (Akaike's Information Criterion), a criterion for statistical model selection. All results show that the new model is better than the traditional ones in performance evaluation.

关键词： Equations Additive white noise Human computer interaction Personal digital assistants Gaussian noise AWGN Information systems systems engineering and theory Environmental economics Aerospace engineering

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A task-independent control method for spoken dialogs

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systems and Computers in Japan 2004年第14期35卷 87-95页

作者： Oku, Tomoki Nishimoto, Takuya Araki, Masahiro Niimi, Yasuhisa Department of Electronics Science Faculty of Engineering and Design Kyoto Institute of Technology Kyoto 606-8585 Japan Department of Information Physics Grad. Sch. Info. Sci. and Technol. University of Tokyo Tokyo 113-8656 Japan

In this paper the authors propose a task-independent control method for spoken dialogs. This is an expansion of the frame-driven dialog control method used in text-based dialog systems, which employs knowledge specific for a task using a database and frames. The frame consists of a set of related topics that can be treated in specific tasks, the priority ranking, and the behavior of the system when each topic is completed. When there is a hierarchical relationship among topics, this is described as a hierarchical relationship among frames. The dialog history is represented by the topic frame using a tree structure that can provide dynamic links (this is called a dynamic topic tree). system-initiative and user-initiative dialog can be accomplished by searching the dynamic topic tree using two types of approaches. The authors created a spoken dialog system for four typical tasks and performed spoken dialog experiments in order to evaluate the system. The results showed that all subjects were able to complete the tasks. This demonstrates that the authors' method is valid as a way to create a practical task-independent spoken dialog system. ©2004 Wiley Pe riodicals, Inc.

关键词： Knowledge acquisition

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115 in NQR study of superconducting CeCoIns under high pressure

115 in NQR study of superconducting CeCoIns under high press...

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作者： Kohori, Y. Saito, H. Kobayashi, Y. Taira, H. Iwamoto, Y. Kohara, T. Matsumoto, T. Bauer, E.D. Maple, M.B. Sarrao, J.L. Department of Physics Faculty of Science Chiba University Inaye-ku Chiba 263-8522 Japan Graduate School of Science and Technology Chiba University Inage-ku Chiba 263-8522 Japan Department of Transportation System Engineering Kobe University of Mercantile Marine Higashi-nada 658-0022 Japan Division of Material Science Graduate School of Science Himeji Institute of Technology Ako-gun Hyogo 628-1297 Japan National Institute for Material Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan Department of Physics Institute of Pure and Applied Physics University of California San Diego San Diego CA 92093 United States Condensed Matter and Thermal Physics Los Alamos National Laboratory Los Alamos NM 87545 United States

We have carried out 115In nuclear quadrupole resonance measurements on CeCoIn5 under high pressure P. The temperature T dependence of the nuclear spin-lattice relaxation rate 1/T1 in the normal state, l/T1 ∞ T1/4, indicates that CeCoIn5 is located just at an antiferromagnetic (AF) instability at ambient pressure. The value of 1/T1 decreases rapidly with increasing P, reflecting that P moves CeCoIns away from the AF instability. © 2004 Elsevier B.V. All rights reserved.

关键词： Cerium compounds

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A new model for different speed and accuracy requirements in pointing tasks

A new model for different speed and accuracy requirements in...

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Proceedings - The Fourth International Conference on Computer and Information technology, CIT 2004

作者： Ren, Xiangshi Kong, Jing Jiang, Xing-Qi Liu, Zhen Cai, Dongfeng Kochi University of Technology Dept. of Info. System Engineering 185 MiyanokuchiTosayamada-cho Kochi 782-8502 Japan Asahikawa University Department of Economics 3-23 Nagayama Asahikawa Hokkaido 079-8501 Japan Faculty of Human Environment Nagasaki Inst. of Applied Science 536 Aba-machi Nagasaki 851-0193 Japan Shenyang Inst. of Aero. Engineering 52 Huanghebei street Shenyang 110034 China

ISBN: (纸本)0769522165

Fitts' law is a tool for evaluating pointing devices, which has been accepted and applied widespread in the human computer interaction field. However, there are still some problems embarrassing the researchers in this field about its validity. One problem is derived from the request on input hits' distribution (i. e. spatial constraint) by the origin of Fitts' law. Therefore, a new model based on temporal distribution was developed to alter the traditional models. We carried out an experiment including five tasks with different requirement on speed and accuracy to test the effect of the new model. The new model and the traditional models are compared with both the mixed data and the individual task data of the experiment using AIC (Akaike's Information Criterion), a criterion for statistical model selection. All results show that the new model is better than the traditional ones in performance evaluation.

关键词： Human computer interaction

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Multipurpose Techniques for Least-Squares Synthesis of Linkages

Multipurpose Techniques for Least-Squares Synthesis of Linka...

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第十一届IFTOMM世界大会

作者： Abdullah F. Al-Dwairi Andrew B. Kikin Mechanical Engineering Department Jordan University of Science and Technology P.O.Box 3030 Irbid 22110-Jordan Department of Theoretical Mechanics Mechanical Engineering Faculty St.-Petersburg State University of Technology and Design Bolshaya Morskaya str. 18 191186 St.-Petersburg-Russia

This work presents efficient techniques for least-square synthesis of linkages. Considerable attention is given to the problem statement. First, the synthesis problem is dealt with in its most general statement. It is then shown that the problem is simplified by considering particular statements having primary significance to the engineering practice. Three statements (cases) are considered along with methods for their solution. The proposed methods form an algorithmic background for efficient PC programs for approximate synthesis.

关键词： Approximate synthesis, Least-square optimization, General and particular statements, SMP, TLF, ASC

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EXPERIMENTAL STUDY ON TURBULENT STRUCTURE IN DRAG REDUCING SURFACTANT SOLUTION CHANNEL FLOW-REYNOLDS NUMBER DEPENDENCE

EXPERIMENTAL STUDY ON TURBULENT STRUCTURE IN DRAG REDUCING S...

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第4届国际流体力学学术会议

作者： Y.Kawaguchi T.Segawa K.Hishida Turbomachinery Research Group Institute for Energy Utilization National Institute of Advanced Industrial Science and Technology Tsukuba 305-8564 Japan Turbomachinery Research Group Institute for Energy Utilization National Institute of Advanced Industrial Science and Technology Tsukuba 305-8564 Japan Department of System Design Engineering Keio University Yokohama 223-8522 Japan

The structure of turbulence in a drag-reducing surfactant solution channel flow has been studied with particle image velocimetry. Measurements were performed for water and surfactant solution flow at three regions with different drag-reducing features: regions 2, 3 and 4 with respect to the Reynolds number, in the x-y and x-z planes for a total 500 frames for each run. The drag-reducing flows at regions 2 and 3 showed different characteristics, even though the DR levels were similar. The intensity of the wall-normal velocity fluctuat韔ns was decreased at both regions, but that of the streamwise velocity fluctuations, normalized with bulk velocity, was depressed at region 2 whereas increased at region 3 near the wall. The Reynolds shear stress was depressed more greatly at region 2. At region 4, the surfactant solution flow did not display characteristic features as in a Newtonian fluid flow.

关键词： drag reduction, surfactant, Reynolds number dependence, channel flow, PIV

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The effect of an electromagnetic wave shield for Ni thin films by magnetron sputtering with multipolar magnetic plasma confinement

Shinku/Journal of the Vacuum Society of Japan

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Shinku/Journal of the Vacuum Society of Japan 2004年第3期47卷 175-178页

作者： Kumabuchi, Zenta Miyano, Tadafumi Kawai, Katuhiro Kawabata, Keishi Kajioka, Hideshi Honda, Shigeo Department of Electronics and Photonic Systems Hiroshima Institute of Technology 2-1-1 Miyake Saeki-ku Hiroshima 731-5193 Western Hiroshima Prefecture Industrial Research Institute of Technology 2-10-1 Agaminami Kure-shi Hiroshima 737-0004 Department of Electronic Functions and System Engineering Interdisciplinary Faculty of Science and Engineering Shimane University 1060 Nishikawatsu-cho Matsue-shi Shimane 690-8504

Nickel thin films for an electromagnetic wave shield were produced by magnetron sputtering with multipolar magnetic plasma confinement (MMPC). The characteristics of the electromagnetic wave shield have been measured by the Kansai Electronic Industry Development Center (KEC) method. The effectiveness of the electromagnetic wave shields of electric field and magnetic field depends significantly on the thickness of Ni thin films deposited on the glass substrate. The shielding effectiveness of the electric field, measured at 800 MHz for 5 μm-thick deposited films, was 92 dB. The value was similar to a 2 mm-thick aluminum plate. For the magnetic field, its effectiveness was 73 dB. It is shown that the dependence of film thickness on the electromagnetic wave shield is due to attenuation loss.

关键词： Electromagnetic waves

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