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Simulation of Initial Growth Process of Pt Cluster on Carbon Materials - First-Principles Calculations

MrS Online Proceedings Library 2011年第1期1130卷 122501-122506页

作者： Okazaki-Maeda, K. Yamakawa, S. Morikawa, Y. Hyodo, S. Akita, T. Maeda, Y. Tanaka, S. Kohyama, M. Department of Mechanical Engineering Osaka University Suita Japan Toyota Central R&D Labs. Inc. Nagakute Aichi Japan ISIR Osaka University Ibaraki Japan UBIQEN National Institute of Advanced Industrial Science and Technology Ikeda Japan

First-principles calculations have been applied to investigate the interactions between Ptn (n=1˜13) clusters and a graphene sheet to model the Pt/C fuel-cell catalytic electrode. For the small clustesr (n<7), planar configurations vertically adsorbed on graphene (V-2d) are more stable than the three-dimensional (3d) configurations. For the large clusters (n>7), the 3d clusters are more stable than the V-2d clusters. In order to investigate the effects of defects and dopants in a graphene sheet, the interactions between the Pt13 cluster and the graphene sheet with an atomic vacancy and an dopant atom, such as boron and nitrogen atoms have been examined. For the atomic vacancy, the Pt atom is directly adsorbed on the C atom vacant site. For the Pt13 cluster adsorbed on the graphene sheet doped with the B or N atoms, the Pt atom is not directly adsorbed on the impurity atoms. The adsorption of the Pt13 cluster above the vacancy of the graphene sheet is more stable that that on the doped graphene sheet in the present calculations.

关键词： Pt simulation C

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43.5L:Late News Paper:Prototype of a Wide Gamut Monitor Adopting an LEd-Backlighting LCd Panel

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SId Symposium digest of Technical Papers 2012年第1期34卷

作者： Hiroaki Sugiura Hideyuki Kaneko Shuichi Kagawa Masahiko Ozawa Kenichi Niki Hideki Tanizoe Advanced Technology R&D center Mitsubishi Electric Corporation 1 Zusho Baba Nagaokakyo Kyoto 617-8550 Japan Application Engineering LCD Business Div. Mitsubishi Electric Corporation 997 Miyoshi Nishigoshimachi Kikuchi-gun Kumamoto 861-1197 Japan Engineering department Nagasaki operations NEC-Mitsubishi Electric Visual Systems Corporation 517-7 Hamada-go Togitsu-cho Nisisonogi-gun Nagasaki 851-2102 Japan

This paper presents development of a wide color gamut monitor that has 104.4 [%] color gamut comparing to NTSC color gamut. In this paper we would like to report about a prototype of wide color gamut monitor. And more we have compared color gamut of our prototype vs. some major set of standard color patches. We would like to also touch upon this comparison. Specifications of our newly developed monitors are as follows: (1) Color gamut; more than 100 [%] for NTSC, (2) Screen size; 22 [inches] (480mm * 288mm), (3) resolution; WXGA (H; 1280 * V; 768 [pixels]), (4) Maximum brightness; more than 600 [cd/m 2 ] and (5) liquid crystal mode; IPS (In-Plane-Switching). (6) Supporting the bi-directional communication function called ddC/CI (display data Channel Command Interface). We believe that our monitor is useful for soft proofing of dTP as replacement of conventional CrT displays. This research is organized in part by NEdO (New Energy and Industrial technology development Organization, Japan).

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development of algorithm for day ahead PV generation forecasting using data mining method

Development of algorithm for day ahead PV generation forecas...

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Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Min-Cheol Kang Jin-Man Sohn Jong-young Park Song-Keun Lee Yong-Tae Yoon Department of Electrical Engineering Seoul National University Seoul Republic of Korea Advanced Technology R&D Center LS Industrial Systems Co. Ltd. Anyang Republic of Korea Department of Electrical Engineering Jeonju University Jeonju Republic of Korea

In this paper, we develop an algorithm for PV(Photo Voltaic) generation forecasting on the day before. In this algorithm, we build database of solar radiation patterns by analyzing past 5 years data from the weather center but deal with February data only. Therefore, we can estimate the amount of PV power generation forecasting in February from this algorithm. This algorithm will facilitate the renewable energy development and give useful information for rES providers to manage their rES power generation schedule. We hope our proposal could help the PV module providers effectively manage their PV generation plan.

关键词： Clouds Equations

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Two Step O 2 /N 2 O Plasma Annealing for the reduction of Leakage Current in Amorphous Ta 2 O 5 Films

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MrS Online Proceedings Library 2011年第1期567卷 501-507页

作者： W. S. Lau M. T. Chandima Perera T. Han N. P. Sandler C. H. Tung T. T. Sheng P. K. Chu T. C. Chong Chartered Semiconductor Manufacturing Ltd. R&D Advanced Technology Department Singapore Singapore Institute of Microelectronics Singapore Singapore Lam Research Corporation Fremont USA Department of Physics and Materials Science City University of Hong Kong Kowloon Hong Kong China Data Storage Institute National University of Singapore Singapore Singapore

As deposited tantalum pentoxide (Ta2O5) films are amorphous. The films will remain amorphous after O2 or N2O plasma annealing at low temperature. High temperature annealing will produce polycrystalline films where grain boundaries can generate leakage current. Previously, we have shown that N2O plasma annealing is superior to O2 plasma annealing in terms of leakage current reduction for AI/Ta2O5/Si capacitors. However, for TiN/Ta2O5/Si capacitors, the leakage current tends to be higher at low bias voltage for N2O plasma annealing compared to O2 plasma annealing. By adding an 02 plasma annealing step and then comparing TiN/Ta2O5/Si capacitors with two step O2/N2O plasma annealing with respect to similar structures with two step O2/O2 plasma annealing, it can be easily seen that TiN/Ta2O5/Si capacitors with two step O2/N2O plasma annealing have lower leakage current compared to similar structures with two step O2/O2 plasma annealing throughtout the voltage range tested.

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robotic Arm Control Inspired by Human Muscle Tension Effect under the Gravity

Robotic Arm Control Inspired by Human Muscle Tension Effect ...

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2011 IEEE International Conference on robotics and Automation(2011年IEEE世界机器人与自动化大会 ICrA 2011)

作者： Ji-Hun Bae Woosung Yang Sang-rok Oh Bum-Jae You doik Kim Yonghwan Oh Department of Applied Robot Technology Korea Institute of Industrial TechnologyAnsan R&D Center127 Human Factors & Devices Research Team Central Advanced Research & Engineering Institute of Hyundai M Cognitive Robotics Center Korea Institute of Science & TechnologyP.O. BOX 131CheongryangSeoul 130

In recent, control approaches for the human-like behavior in the field of service robotics have been attracting considerable attention, since most humans or animals perform various tasks uncomplicatedly. Hence simple control methods based on gaining a physical insight into human reaching movement in redundancy of dOFs have been proposed. In comparison with the conventional approaches, the proposed method tries to control directly robotic systems in task-space with the control signal composed of linear superposition of three terms 1) joint-damping, 2) virtual spring, and 3) virtual damper in task-space. In particular, our work contains a muscle tension effect of a human under the gravity. This give birth to energy efficient natural motions avoiding problems on repeatability of the motion and ill-posedness problems emerged in most of redundant dOF systems. Thus, this paper exhibits expendability of the position control into the orientation control and compliant behavior. It is verified with a real robotic arm that satisfies human-like movements and motion repeatability under kinematic redundancy of joints.

关键词： robot arm control Human-like motion redundant robots Manipulation

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P-42: development of CNT Cathodes for Field-Emission FPds by Liquid-Phase Fabrication

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SId Symposium digest of Technical Papers 2012年第1期36卷

作者： Yao-Zong Chen Chih-Che Kuo Kevin Cheng Jin-Shou Fang Chun-Yen Hsiao Pu-Hsin Chang Frank Yang Chin-Hao Wu Te-Fong Chan Bo Gao Soojin Oh Hideo Shimoda Otto Zhou Division of Advanced Display and Nano Technology TECO Group Research Institute TECO Electric & Machinery Co. Ltd. 4F No.3 Yuan Chu St. Nan-Kang Taipei 115 Taiwan R.O.C R&D Department TECO Nanotech Co. Ltd. 1560 Chung-Shan road Sec. 1 Kuang-In Taoyuan County Taiwan R.O.C. Xintek Inc. P.O. Box 13788 7020 Kit Creek Road Suite 280 Research Triangle Park NC 27709 USA

Fabrication of CNT pattern by liquid-phase based deposition technique has been studied in Xintek for several years. By using this technique, we successfully fabricated sealed CNT field emission display prototypes with diode structures. The CNT panel size has been scaled up from 4 inch to 8 inch. Patterned CNT cathode was made by incorporating photolithography techniques into the liquid-phase deposition process. CNT pattern size of 50 um was achieved on our standard (unpolished) display substrates. A simple substrate polishing process could reduce the CNT pattern size down to 20 um. It indicates that high-resolution displays are possible by improving the surface smoothness of the substrates. The patterned CNT cathodes demonstrated good field emission characteristics including low turn-on field and high emission current density. However, the emission uniformity remains to be a major concern. The global emission uniformity of the CNT panels can be improved through more engineering efforts. We believe that the emission uniformity in pixel can be enhanced by optimization of the liquid-phase deposition process and CNTs concentration, distribution as well as morphology in the cathodes. Liquid-phase deposition technique can also deposit CNTs into preformed triode structures with the aid of photolithography techniques.

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A tree-shaped motion strategy for robustly executing robotic assembly tasks

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第12期11卷 986-991页

作者： Yusuke BOTA Hajime MIZUYAMA Akio NOdA Tatsuya NAGATANI Ken-ichi TANAKA Department of Mechanical Engineering and Science Kyoto University Yoshida-Honmachi Advanced Technology R&D Center Mitsubishi Electric Corporation 8-1-1Tsukaguchi-Honmachi

An assembly robot needs to be capable of executing an assembly task robustly under various *** attain this goal,we use a task sequence tree model originally proposed for manual *** model regards an assembly task under uncertainties as a transformation of the contact state *** concept may contain several contact states with probabilities but these are transformed through a series of task elements into the contact state concept having only the goal state at the *** transformed contact state concept can be classified according to the terminal condition of each task ***,the whole assembly task can be designed as a tree-shaped contingent strategy called a task sequence *** paper proposes a systematic approach for reconfiguring a task sequence tree model for application to a robotic assembly *** addition,by taking a 2d peg-in-hole insertion task to be performed by a robot equipped with a force sensor as an example,we confirm that the proposed approach can provide a robust motion strategy for the task and that the robot can actually execute the task robustly under bounded uncertainty according to the strategy.

关键词： Active compliant motion Contact states Motion strategy robotic assembly Task sequence tree

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development of room temperature magnetic heat pump technologies as a national project in Japan 6

Development of room temperature magnetic heat pump technolog...

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6th IIr/IIF International Conference on Magnetic refrigeration at room Temperature, THErMAG 2014

作者： Hirano, N. Miyazaki, Y. Bae, S. Takata, H. Kawanami, T. Xiao, F. Okamura, T. Wada, H. Superconductivity Team Electric Power RandD Center Chubu Electric Power Co. Inc. Ohdaka-cho Midori-ku Nagoya Japan Cryogenic Systems Maglev Systems Technology Division Railway Technical Research Institute Hikari-cho Kokubunji-shi Tokyo Japan R and D Division Advanced Technology Development Office SANDEN Corporation Kotobuki-cho Isesaki-shi Gunma Japan RandD Division Functional Material Group Santoku Corporation Minamifutami Futami-cho Akashi-shi Hyogo Japan Department of Mechanical Engineering Kobe University Rokkodai-cho Nada-ku Kobe Japan Department of Energy Sciences Tokyo Institute of Technology Nakatsuda-cho Midori-ku Yokohama Japan Department of Physics Kyusyu University Hakozaki Higashi-ku Fukuoka Japan

ISBN: (纸本)9782362150074

A highly effective magnetic heat pump system using a permanent magnet with a rotational mechanism has been developed as a national project in Japan. The goal of our research and development as a "Next Generation Heat Pump System" for developing practical-use heat pump technology using the magnetocaloric effect is to establish prospects for early realization of a magnetic heat pump based on demonstration results. A magnetic heat pump was designed and produced using a cascading connection with multiple magnetocaloric materials so that a maximum refrigeration capacity of kW class was achieved, and efficiency (COP) at a temperature difference of 10 K or more was estimated. Also, research and development of magnetocaloric materials heat exchanger heat-transfer enhancement and pressure loss reduction techniques, a heat exchanger for magnetic heat pump cooling, magnetocaloric effect heat-transfer simulation technique, an arbitrary shape processing technology for the magnetocaloric materials were carried out.

关键词： Magnetocaloric effects

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A Hybrid Joining technology for Aluminum/Zinc Coated Steels in Vehicles

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Journal of Materials Science & technology 2010年第9期26卷 858-864页

作者： C.Y.Choi d.C.Kim d.G.Nam Y.d.Kim Y.d.Park School of Materials Science and Engineering Pusan National UniversityBusan Advanced Welding & Joining R&D Division Institute of Industrial Technology Incheon Dongnam Technology Service Division Korea Institute of Industrial TechnologyBusan Department of Advanced Materials Engineering Dong-Eui UniversityBusan

Currently,in the automotive industry,joining of the aluminum alloys with the steel is a crucial problem to be *** joining techniques including resistance spot and gas metal arc welding are not acceptable for those applications due to a number of metallurgical *** investigation was carried out to develop the hybrid joining process combining the resistance spot welding and *** this study,an attempt was made to apply hybrid process to the joining of dissimilar sheet metals,Al-Mg-Si（6000 series） alloy and low carbon steel *** process（resistance spot weld/brazing） using filler metal was found to be effective to overcome the incompatibility between aluminum alloy and *** hybrid joining process of Al alloy sheet and steel sheet did not produce acceptable bond strength,it was proved to have reasonable interfacial bond layer if the optimal process condition was applied.

关键词： Hybrid joining Aluminum alloy Steel resistance welding Brazing

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节能低成本高品质非调质钢的研发

节能低成本高品质非调质钢的研发

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2012年全国轧钢生产技术会

作者： HUI Wei-jun 惠卫军 CHEN Si-lian 陈思联 YANG Wei-ning 杨伟宁 WANG Lian-hai 王连海 dAI Guan-wen 戴观文 National Engineering Research Center of Advanced Steel Technology Central Iron & Steel Research Ins 钢铁研究总院先进钢铁材料技术国家工程研究中心北京100081 Special Steel R&D Center Baoshan Iron&Steel Co. Ltd.Research InstituteShanghai 200940 China 宝钢股份研究院特钢技术中心上海200940 R & D Center Fushun Special Steel Co.Ltd. Fushtm Liaoning 113001 China 抚顺特殊钢股份有限公司技术中心辽宁抚顺113001 Development Department Shijiazhuang Iron & Steel Co. Ltd Shijiazhuang Hebei 050031 China 石家庄钢铁有限责任公司开发部河北石家庄050031

本文结合近年来国内外的发展趋势，从化学成分的精确稳定控制、硫化物控制、前轴、半轴和胀断连杆等典型品种用非调质钢的研发及非调质钢的长疲劳寿命化技术等方面对中国近年来非调质钢的部分研发工作进行了综合论述。为了进一步提高非... 详细信息

本文结合近年来国内外的发展趋势，从化学成分的精确稳定控制、硫化物控制、前轴、半轴和胀断连杆等典型品种用非调质钢的研发及非调质钢的长疲劳寿命化技术等方面对中国近年来非调质钢的部分研发工作进行了综合论述。为了进一步提高非调质钢的技术经济性，非调质钢的少无微合金化元素的低成本化、精确成分和尺寸控制是其中的重要发展方向。此外，随着冶金生产和零件制造技术的不断进步，为了替代调质处理的合结钢等以制造更多的保安件，具有更高的强韧性配合的贝氏体型非调质钢必将得到更多的应用。

关键词：非调质钢产品开发节能降耗冶金质量力学性能

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