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H2S Sensors: Fumarate‐Based fcu‐MOF Thin Film Grown on a Capacitive Interdigitated Electrode

Angewandte Chemie 2016年第51期128卷

作者： Omar Yassine Osama Shekhah Ayalew H. Assen Youssef Belmabkhout Khaled N. Salama Mohamed Eddaoudi Sensors Lab Electrical Engineering Program Division of Computer Electrical and Mathematical Sciences and Engineering King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia Functional Materials Design Discovery and Development research group (FMD3) Advanced Membranes & Porous Materials Center Division of Physical Sciences and Engineering King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia

Herein we report the fabrication of an advanced sensor for the detection of hydrogen sulfide (H 2 S) at room temperature, using thin films of rare‐earth metal (RE)‐based metal–organic framework (MOF) with underlying fcu topology. This unique MOF‐based sensor is made via the in situ growth of fumarate‐based fcu ‐MOF (fum‐ fcu ‐MOF) thin film on a capacitive interdigitated electrode. The sensor showed a remarkable detection sensitivity for H 2 S at concentrations down to 100 ppb, with the lower detection limit around 5 ppb. The fum‐ fcu ‐MOF sensor exhibits a highly desirable detection selectivity towards H 2 S vs. CH 4 , NO 2 , H 2 , and C 7 H 8 as well as an outstanding H 2 S sensing stability as compared to other reported MOFs.

关键词： H2S Interdigital-Elektroden Metall-organische Gerüstverbindungen Seltenerdmetalle Sensoren

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Rücktitelbild: H2S Sensors: Fumarate‐Based fcu‐MOF Thin Film Grown on a Capacitive Interdigitated Electrode (Angew. Chem. 51/2016)

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Angewandte Chemie 2016年第51期128卷

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Publisher Correction: Alpha-synuclein facilitates to form short unconventional microtubules that have a unique function in the axonal transport

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Scientific reports 2018年第1期8卷 8019页

作者： Shiori Toba Mingyue Jin Masami Yamada Kanako Kumamoto Sakiko Matsumoto Takuo Yasunaga Yuko Fukunaga Atsuo Miyazawa Sakiko Fujita Kyoko Itoh Shinji Fushiki Hiroaki Kojima Hideki Wanibuchi Yoshiyuki Arai Takeharu Nagai Shinji Hirotsune Department of Genetic Disease Research Osaka City University Graduate School of Medicine Asahi-machi 1-4-3 Abeno Osaka 545-8585 Japan. Department of Bioscience and Bioinformatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Kawazu 680-4 Iizuka Fukuoka 820-850 Japan. JST-SENTAN 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan. JST-CREST 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan. Graduate School of Life Science University of Hyogo 3-2-1 Kouto Kamigori-cho Ako-gun Hyogo 678-1297 Japan. RSC-University of Hyogo Leading Program Center RIKEN SPring-8 Center 1-1-1 Kouto Sayo-cho Sayo-gun Hyogo 679-5148 Japan. Graduate School of Materials Science Nara Institute of Science and Technology 8916-5 Takayama Ikoma Nara 630-0101 Japan. Department of Pathology and Applied Neurobiology Kyoto Prefectural University of Medicine Graduate School of Medical Sciences Kajii-cho Kawaramachi-Hirokoji Kamigyo-ku Kyoto 602-8566 Japan. Advanced ICT Research Institute National Institute of Information and Communications Technology 588-2 Iwaoka Nishi-ku Kobe 651-2492 Japan. Department of Pathology Osaka City University Graduate School of Medicine Asahi-machi 1-4-3 Abeno Osaka 545-8586 Japan. Department of Biomolecular Science and Engineering Institute of Scientific and Industrial Research Osaka University Mihoga-oka 8-1 Osaka 567-0047 Japan. Department of Genetic Disease Research Osaka City University Graduate School of Medicine Asahi-machi 1-4-3 Abeno Osaka 545-8585 Japan. shinjih@med.osaka-cu.ac.jp.

A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.

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Robotic driving assistance system for manual wheelchair user on uneven ground

Robotic driving assistance system for manual wheelchair user...

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IEEE International Conference on Rehabilitation Robotics (ICORR)

作者： Daisuke Chugo Nobuhiro Goto Sho Yokota Satoshi Muramatsu Hiroshi Hashimoto Graduate School of Science and Technology Kwansei Gakuin University Sanda Japan Faculty of Science and Engineering Toyo University Saitama Japan School of Information Science and Technology Tokai University Hiratsuka Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Tokyo Japan

ISBN: (纸本)9781479918096

This paper proposes a novel driving assistance system for a manual wheelchair. On an inclined road, there is a high risk of a wheelchair moving in a direction that the user does not intend. Using only servo brakes on each wheel, our proposed system negates the wheel traction that is generated by the road's inclination. Our system measures the road's inclination and estimates the wheel traction generated by gravitational force. Our system then cancels this traction and the user can drive the wheelchair as they would on flat ground. The system is intuitive because the user drives the wheelchair in the usual manner, and our assistance system works passively to complement the user's intentional force. Our system uses only servo brakes that can generate the various required levels of brake traction. Our system does not require actuators, and its mechanism is simple and inexpensive. There is no risk of malfunction of servomotors. We verified the effectiveness of our proposed assistance system by conducting experiments with a prototype.

关键词： Wheelchairs Wheels Brakes Gravity Sensors Servomotors Acceleration

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Active seating support which reduces the pressure and share stress for a wheelchair user

Active seating support which reduces the pressure and share ...

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Conference on Human System Interactions, HSI

作者： Daisuke Chugo Kenji Shiotani Masaaki Yoshida Satoshi Muramatsu Sho Yokota Hiroshi Hashimoto School of Science and Technology Kwansei Gakuin University Sanda Japan School of Information Science and Technology Tokai University Hiratsuka Kanagawa Japan Faculty of Science and Engineering Toyo University Kawagoe Saitama Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Shinagawa Tokyo Japan

This paper proposes an automatic sitting posture coordination system for avoiding the risk of the pressure sore on a wheelchair. For avoiding this risk, it is important to maintain the suitable posture which reduces the pressure concentration and share stress between the buttock and a sitting surface on the wheelchair, and to depressurize them as the healthy person does during sitting on the wheelchair. For realizing these functions, this paper proposes an active seating support system which consists of a sitting surface lifting device and a backrest tension coordination device. Our system estimates the pressure concentration and share stress on the buttock and based on the estimated results, our system realizes the suitable sitting posture which minimizes them coordinating two devices. Furthermore, when the risk of the pressure sore increases, our system assists to depressurize the pressure concentration and share stress with this suitable sitting posture. Using our proposed active seating system, the patient can depressurize by a natural body motion as the healthy person automatically. The performance of our system is verified by experiments using our prototype.

关键词： Stress Wheelchairs Force Buttocks Muscles Stress measurement Position measurement

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A manual wheelchair assistance system which cancels a gravitational force on a slope

A manual wheelchair assistance system which cancels a gravit...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Daisuke Chugo Masahiro Goto Satoshi Muramatsu Sho Yokota Yuki Sakaida Hiroshi Hashimoto Graduate School of Science and Technology Kwansei Gakuin University Sanda Hyogo Japan RIKEN-SRK Collaboration Center for Human-Interactive Robot Research RIKEN (The Institute of Physical and Chemical Research) Nagoya Aichi Japan Faculty of Science and Engineering Toyo University Kawagoe Saitama Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Shinagawa Tokyo Japan

This paper proposes a novel driving assistance system for a manual wheelchair. On an inclination road, there is a high risk of moving the direction, which a manual wheelchair user does not intend, because of a gravitational force. Our proposed system cancels the wheel traction, which is generated according to the inclination of the road, using only servo brakes on each wheel. Our system measures the inclination of the road and estimates the wheel traction generated by a gravitational force. Then, our system cancels this traction and its user can use this wheelchair as its user drives it on no inclination flat ground. Its user can use it intuitively because its user drives this wheelchair by rowing its hand rims as usual and our assistance system works passively with their own intentional force. For realizing this idea, our system uses only servo brakes which can generate the various required brake traction. Our system does not require actuators, and its mechanism is simple and low cost. There is no risk by malfunction of servomotors. We test our proposed assistance system by the experiments with our prototype and verify its effectiveness.

关键词： Wheelchairs Wheels Acceleration Gravity Roads Servomotors

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2-[(Hydroxymethyl)amino]ethanol in water as a preservative: Study of formaldehyde released by Taguchi's method

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IOP Conference Series: Earth and Environmental science 2016年第1期36卷

作者： W Wisessirikul S Loykulnant S Montha T Fhulua P Prapainainar Interdisciplinary Graduate Program in Advanced and Sustainable Environmental Engineering Thailand Advanced Institute of Science and Technology and Tokyo Institute of Technology Kasetsart University Bangkok 10900 Thailand Natural Rubber Focus Unit National Metal and Materials Technology Center NSTDA 111 Paholyothin Rd. Klong 1 Klong Luang Pathumthani 12120 Thailand Environment Research Unit National Metal and Materials Technology Center NSTDA 111 Paholyothin Rd. Klong 1 Klong Luang Pathumthani 12120 Thailand National Center of Excellence for Petroleum Petrochemicals and Advance Materials Department of Chemical Engineering Faculty of Engineering Kasetsart University Thailand Center of Excellence of Nanotechnology Kasetsart University Thailand

This research studied the quantity of free formaldehyde released from 2- [(hydroxymethyl)amino]ethanol (HAE) in DI water and natural rubber latex mixture using high-performance liquid chromatography (HPLC) technique. The quantity of formaldehyde retained in the solution was cross-checked by using titration technique. The investigated factors were the concentration of preservative (HAE), pH, and temperature. Taguchi's method was used to design the experiments. The number of experiments was reduced to 16 experiments from all possible experiments by orthogonal arrays (3 factors and 4 levels in each factor). Minitab program was used as a tool for statistical calculation and for finding the suitable condition for the preservative system. HPLC studies showed that higher temperature and higher concentration of the preservative influence the amount of formaldehyde released. It was found that conditions at which formaldehyde was released in the lowest amount were 1.6%w/v HAE, 4 to 40 °C, and the original pH. Nevertheless, the pH value of NR latex should be more than 10 (the suitable pH value was found to be 13). This preservative can be used to replace current preservative systems and can maintain the quality of latex for long-term storage. Use of the proposed preservative system was also shown to have reduced impact on the toxicity of the environment.

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The guidance method of a mobile robot in consideration of human walking characteristics - 1st Report: Investigation of human walking characteristics

The guidance method of a mobile robot in consideration of hu...

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作者： Nakamoto, Shinpei Muramatsu, Satoshi Chugo, Daisuke Yokota, Sho Hashimoto, Hiroshi Graduate School of Science and Technology Kwansei Gakuin University Hyogo Japan Faculty of Science and Engineering Toyo University Saitama Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Tokyo Japan

ISBN: (纸本)9781479940325

In recent years, the demand for service robots is increasing all over the world. Service robots have the purpose to assist living, such as medical treatment, transportation and security, and tend to have the function which move automatically in an environment. When operating such an autonomous mobile robot in a real world, the obstacle avoidance is the necessary technique to use a robot safely. A robot has to avoid static obstacles such as garden plants or signboards, and dynamic one such as pedestrians, and especially the robot has to act with caution to pedestrians. The purpose of this paper is analysis of human walking characteristics from the movement of a pedestrian, and from the experimental result, it turned out that the future movement of a pedestrian will be able to predict by movements of a few pedestrians. © 2014 IEEE.

关键词： Mobile robots

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Corrigendum to “Biocorrosion behavior of biodegradable nanocomposite fibers coated layer-by-layer on AM50 magnesium implant” [Mater. Sci. Eng. C 58 (2016) 1232–1241]

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materials science and engineering: C 2016年 61卷 1029-1029页

作者： Abdalla Abdal-hay Anwarul Hasan Yu-Kyoung Kim Min-Ho Lee Abdel Salam Hamdy Khalil Abdelrazek Khalil Dept. of Engineering Materials and Mechanical Design Faculty of Engineering South Valley University Qena Egypt Dept. of Mechanical and Biomedical Engineering American University of Beirut Beirut Lebanon Dept of Mechanical and Industrial Engineering College of Engineering Qatar University P.O. Box 2713 Doha Qatar Dept of Dental Biomaterials and Institute of Biodegradable Materials Institute of Oral Bioscience and School of Dentistry (plus BK21 program) Chonbuk National University Jeon Ju 561-756 South Korea Dept. of Manufacturing and Industrial Engineering College of Engineering and Computer Science University of Texas Rio Grande Valley 1201West University Dr. Edinburg TX 78541-2999 USA Dept. of Mechanical Engineering College of Engineering King Saud University P.O. Box 800 Riyadh 11421 Saudi Arabia Dept. of Mechanical Engineering Faculty of Energy Engineering Aswan University Aswan Egypt

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Monotonic and cyclic deformation behaviour of Fe-36Ni (INVAR) syntactic foam

Monotonic and cyclic deformation behaviour of Fe-36Ni (INVAR...

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作者： Krupp, U. Poltersdorf, P. Nesic, S. Baumeister, J. Weise, J. Institute for Materials Design and Structural Integrity Faculty of Engineering and Computer Science University of Applied Sciences Osnabrück Osnabrück49009 Germany Fraunhofer-Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 12 Bremen28359 Germany

The present paper provides an overview of the mechanical properties of syntactic metal foams based on a Fe-36Ni (INVAR) matrix with different weight fractions of S60HS soda-lime borosilicate glass hollow particles (0 wt%, 5 wt% and 10 wt%). Similar to conventional metallic foams, syntactic foams show excellent damping and energy-absorption properties, however, at substantially higher compression and tensile strengths values. In spite of the distinguished adjustable properties, syntactic foams are today not commercially being used, mainly due to lack in available material data. Within this study, the syntactic material has been evaluated with a special focus on its compression, tension and fully-reversed fatigue behavior. By means of scanning electron microscopy, the respective fracture surfaces gave evidence of the governing failure mode, mostly fatigue striations and patches of ductile rupture. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Tensile strength

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