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World Congress on Intelligent Control and Automation (WCICA)

作者： Jianhua Fan Xiufeng Wang Hongyun Ning School of Electronic Information and Control Engineering Beijing Polytechnic University Beijing School of Computing Informatics and Decision Systems Engineering Arizona State University Tempe AZ USA Department of Chemical and Bioengineering University of Illinois Chicago IL USA

A heuristic algorithm for multiple vehicles routing problem with stochastic demand is proposed and the goal is to minimize the total traveling cost. Two-phase method is adopted to deal with this problem. In the first phase, an algorithm is proposed to partition customers into clusters, and the main task of the second phase is to design an effective routing through each cluster of customers to minimize the total expected traveling cost. Both the a priori strategy and the reoptimization strategy are used to obtain the optimal routing. The experiment results indicate that this method can produce solutions of good quality and is an effective algorithm for the multiple vehicles routing problem with stochastic demand

关键词： Routing Stochastic processes Clustering algorithms Vehicle safety Partitioning algorithms Costs Vehicle driving Councils Information technology Computer science

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Environment-Adaptive Antipersonnel Mine Detection System - Advanced Mine Sweeper

Environment-Adaptive Antipersonnel Mine Detection System - A...

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2006 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Toshio Fukuda Yasuhisa Hasegawa Kazuhiro Kosuge Kiyoshi Komoriya Fumihisa Kitagawa Tomohiro Ikegami Department of Micro-Nano Systems Engineering University of Nagoya Japan Department of Intelligent Information Technology University of Tsukuba Japan Department of Bioengineering and Robotics University of Tohoku Japan Intelligent Systems Institute National Institute for Advanced Industrial Science and Technology Japan Mitsui EngineeringMES Shipbuilding Company Limited Japan Tadano Limited Japan

In this paper, we propose an environment-adaptive antipersonnel mine detection system called Advanced Mine Sweeper. Advanced Mine Sweeper is developed based on sensing technologies, access-control technologies and system integration technologies for safe and effective demining procedure after the Level II survey. Advanced Mine Sweeper consists of a sensing vehicle/unit, an access vehicle, and an assist vehicle. The sensing vehicle/unit is composed of an integrated sensor and a small-reaction sensor head manipulator. The access vehicle is parked facing a mine field in order to control the sensing unit position in a global area using its boom. The assist vehicle is parked keeping some distance from a mine field. It controls the sensing vehicle/unit and access vehicle and then displays the processed sensing information for landmine detection, receiving sensing information and sensing position. By using this system, experiments in the field buried dummy landmines were carried out for the utility and performance evaluation

关键词： Vehicles Ground penetrating radar Landmine detection Intelligent robots Space technology Orbital robotics Robot sensing systems Information management Gas detectors Radar detection

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Introduction of Mission Unit on Information Collection by On-Rubble Mobile Platforms of Development of Rescue Robot systems (DDT) Project in Japan

Introduction of Mission Unit on Information Collection by On...

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SICE Annual Conference

作者： Fumitoshi Matsuno Shigeo Hirose Iwaki Akiyama Takao Inoh Michele Guarnieri Naoji Shiroma Tetsushi Kamegawa Kazunori Ohno Noritaka Sato Kawasaki Laboratory International Rescue System Institute Kawasaki Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Tokyo Japan Department of Mechanical and Aerospace Engineering Tokyo Institute of Technology Tokyo Japan Department of Electrical and Electronic Engineering Shonan Institute of Technology Japan. Tel : +81-466-30-0190 E-mail: akiyama@*** Department of Mechanical and Aerospace Engineering Tokyo Institute of Technology Tokyo Japan. Tel : +81-03-5734-3177 E-mail: guarnieri@robotics.mes.titech.ac.jp Department of Intelligent Systems Engineering Ibaraki University Hitachi Japan Department of System Engineering Okayama University Okayama Japan Department of Bioengineering and Robotics Tohoku University Sendai Japan

Intelligent rescue systems with high information and robot technology have been expected to mitigate disaster damages, especially in Japan after the 1995 Hanshin-Awaji earthquake. In development of robots for search and rescue tasks it is important to develop a robot which can actually work in a real disaster site. Several robots were used for the search and detection operation in the collapsed World Trade Center building in September 2001. From 2002 "Special Project for Earthquake Disaster Mitigation in Urban Areas" (5 years project) launched by Ministry of Education, Culture, Spots, Science and Technology, Japan. It aims at significant mitigation the earthquake disaster damage on the scale of the Great Hanshin earthquake, in densely populated areas in big city regions such as Tokyo metropolitan area and Keihanshin area. In this paper, we introduce the activities of the mission unit on the information collection by on-rubble mobile platforms

关键词： Mobile robots Intelligent robots Earthquakes systems engineering and theory Intelligent systems Urban areas Robot sensing systems Humans System testing Laboratories

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Intracellular stress transmission through actin stress fiber network in adherent vascular cells

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MCB Molecular and Cellular Biomechanics 2005年第4期2卷 205-216页

作者： Deguchi, S. Ohashi, T. Sato, M. Department of Energy Systems Engineering Graduate School of Natural Science and Technology Okayama University Tsushima-naka 3-1-1 Okayama 7008530 Japan Department of Bioengineering and Robotics Tohoku University Sendai Japan

Intracellular stress transmission through subcellular structural components has been proposed to affect activation of localized mechano-sensing sites such as focal adhesions in adherent cells. Previous studies reported that physiological extracellular forces produced heterogeneous spatial distributions of cytoplasmic strain. However, mechanical signaling pathway involved in intracellular force transmission through basal actin stress fibers (SFs), a mechano-responsive cytoskeletal structure, remains elusive. In the present study, we investigated force balance within the basal SFs of cultured smooth muscle cells and endothelial cells by (i) removing the cell membrane and cytoplasmic constituents except for materials physically attaching to the substrate (i.e., SF-focal adhesion complexities) or (ii) dislodging either mechanically or chemically the cell processes of the cells expressing fluorescent proteins-labeled actin and focal adhesions in order to examine stress-release-induced deformation of the basal SFs. The result showed that a removal of mechanical restrictions for SFs resulted in a decrease in the length of the remaining SFs, which means SFs bear tension. In addition, a release of the preexisting tension in a single SF was transmitted to another SF physically linked to the former, but not transmitted to the other ones physically independent of the former, suggesting that the prestress is balanced in tensed SF networks. These results support a hypothesis regarding cell structural architecture that physiological extracellular forces can produce in the basal SF network a directional intracellular stress or strain distribution. Therefore, consideration of the coexistence of the directional stretching strain along the axial direction of SFs and the heterogeneous strain in the other cytoplasmic region will be essential for understanding intracellular stress transmission in the adherent cells. Copyright © 2000 Tech Science Press.

关键词： Biomechanics

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Evaluation of tension in actin bundle of endothelial cells based on preexisting strain and tensile properties measurements

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MCB Molecular and Cellular Biomechanics 2005年第3期2卷 125-133页

作者： Deguchi, S. Ohashi, T. Sato, M. Department of Energy Systems Engineering Graduate School of Natural Science and Technology Okayama University Okayama Japan Department of Bioengineering and Robotics Tohoku University Sendai Japan Tsushima-naka 3-1-1 Okayama 7008530 Japan

Actin bundles in vascular endothelial cells (ECs) play a critical role in transmitting intracellular forces between separate focal adhesion sites. However, quantitative descriptions of tension level in single actin bundles in a physiological condition are still poorly studied. Here, we evaluated magnitude of preexisting tension in a single actin bundle of ECs on the basis of measurements of its preexisting stretching strain and tensile properties. Cultured ECs expressing fluorescently-labeled actin were treated with detergents to extract acin bundles. One end of an actin bundle was then dislodged from the substrate by using a microneedle, resulting in a shortening of the actin bundle due to a release of preexisting tension. Assuming the shortened actin bundle reached its non-stress state, preexisting stretching strain was determined to be 0.24 on average. A tensile test of the dislodged single acin bundle was conducted with a pair of cantilevers to measure the force required for stretching it up to the original length, yielding an estimate of preexisting tension in the actin bundle. The magnitude of the preexisting tension, 4 nN on average, was comparable to previously reported data of the traction force generated by adherent cells at single adhesion sites to keep cell integrity. The Young's modulus of the isolated actin bundle was estimated to be ∼300 kPa from the tensile tests together with evaluation of average diameter of the isolated actin bundle based on transmission electron microscopy. These data will contribute to better understanding of intracellular stress transmission mechanism in ECs. Copyright © 2005 Tech Science Press.

关键词： Biomedical engineering

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Scientific engineering of Distributed Java Applications 2005

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丛书名： Lecture Notes in Computer Science

2005年

作者： Nicolas Guelfi Gianna Reggio Alexander Romanovsky

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Computing and informatics: Foreword

Computing and Informatics: Foreword

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作者： Rudas, Imre J. Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Bécsi út 96/B H-1034 Budapest Hungary Department of Intelligent Engineering Systems Hungary IFSA for Membership Development Hungary Hungarian Fuzzy Association Hungary Hungarian Robotics Association Hungary John von Neumann Computer Society Hungary

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An electromagnetic hearing aid using coils to vibrate the ossicles -evaluation of excitation force and distortion

An electromagnetic hearing aid using coils to vibrate the os...

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INTERMAG ASIA 2005: Digests of the IEEE International Magnetics Conference

作者： Hamanishi, S. Koike, T. Matsuki, H. Kobayashi, T. Wada, H. Department of Bioengineering and Robotics Tohoku University Aoba-yama 6-6-01 Sendai Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Chofugaoka 1-5-1 Tokyo Japan Department of Electrical and Communication Engineering Tohoku University Aoba-yama 6-6-05 Sendai Japan Department of Otorhinolaryngology - Head and Neck Surgery Tohoku University Seiryo-machi 1-1 Sendai 980-8574 Japan

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Evaluation of the excitation force generated by a new electromagnetic hearing aid using human temporal bones

Evaluation of the excitation force generated by a new electr...

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12th International Congress on Sound and Vibration 2005, ICSV 2005

作者： Hamanishi, Shinji Koike, Takuji Kobayashi, Toshimitsu Wada, Hiroshi Department of Bioengineering and Robotics Tohoku University 6-6-01 Aoba-yama Sendai 980-8579 Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications 1-5-1 Chofugaoka Chofu Tokyo 182-8585 Japan Department of Otorhinolaryngology-Head and Neck Surgery Tohoku University School of Medicine 1-1 Seiryo-machi Sendai 980-8574 Japan

ISBN: (纸本)9781627481496

Sensorineural hearing loss, resulting from a dysfunction of cochlear amplification, is observed in a steadily increasing number of younger patients as well as in aged patients. The majority of these hearing-impaired individuals use conventional hearing aids, which are mainly composed of an earphone, a microphone and an amplifier. However, some patients who use conventional hearing aids remain unsatisfied owing to various problems such as sound distortion, feedback and so on. To circumvent some of the problems inherent in conventional hearing aids, implantable hearing aids have been developed. The most prominent feature of implantable hearing aids is that a transducer is directly coupled to the one of the middle-ear ossicles. However, since invasive surgery is necessary for implantation of these hearing aids, they have not as yet been widely employed. We therefore constructed a new non-implantable hearing aid which can generate an excitation force to vibrate the ossicles by a coil adhered to the tympanic membrane. In this study, the excitation force generated by this hearing aid was evaluated using human temporal bones. The best result of experiments using three bones indicates that the newly developed hearing aid can generate an excitation force of more than 80 dB SPL in terms of sound pressure at frequencies between 0.8 and 3.2 kHz.

关键词： Hearing aids

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Development of a hand-guided apparatus for measuring ossicular mobility

Development of a hand-guided apparatus for measuring ossicul...

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12th International Congress on Sound and Vibration 2005, ICSV 2005

作者： Koike, Takuji Hamanishi, Shinji Kobayashi, Toshimitsu Merchant, Saumil N. Wada, Hiroshi Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications 1-5-1 Chofugaoka Chofu Tokyo 182-8585 Japan Department of Bioengineering and Robotics Tohoku University Sendai 980-8579 Japan Department of Otorhinolaryngology Head and Neck Surgery Tohoku University Graduate School of Medicine Sendai 980-8574 Japan Department of Otology and Laryngology Harvard Medical School Eaton-Peabody Laboratory MA 02114 United States

ISBN: (纸本)9781627481496

In this study, an apparatus that quasi-statically measures the relationship between the load applied to the ossicles and the displacement of the ossicles was developed, and the ossicular mobility in human temporal bones was measured before and after the ossicles were artificially fixed. Results were compared with estimates of vibration amplitude of the ossicles obtained with a laser Doppler velocimeter in the same temporal bones when sound stimulus was applied to the tympanic membrane. Although the data set is small, a correlation was seen between the ossicular mobility measured with our apparatus and the vibration amplitude of the ossicles. This result suggests that our apparatus is able to detect the difference in mobility between fixed and normal ears, and indicates that our apparatus is a potentially useful tool for the estimation of ossicular disorders.

关键词： Laser Doppler velocimeters

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