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International Conference on Electronics Packaging (ICEP)

作者： Kazuhiro Takahashi Yoshihiro Masuya Ryo Ozawa Makoto Ishida Kazuaki Sawada Japan Science and Technology Agency (JST) Core Research for Evolutional Science and Technology (CREST) Tokyo Japan Toyohashi University of Technology Toyohashi Aichi Japan

This paper reports a MEMS-based Fabry-Perot interferometric biosensor that utilizes an optical transmittance change via Fabry-Perot interference to enhance the conversion efficiency from the mechanical displacement to electrical readout. The novel signal transducing technique was performed in three steps, namely, mechanical deflection, transmittance change, and photocurrent change. The newly proposed flat sensor structure with a trench refill provides reliability, robustness, and high yield. The polychloro-para-xylylene thin film was released by XeF 2 using a polysilicon sacrificial layer. The etching holes were sealed to prevent any liquid contamination into the Fabry-Perot cavity. A 30-μm-thick photosensitive dry film resist was laminated on the substrate. The sensing area was opened by standard photolithography, exposing UV light using a manual aligner. The interference peak position indicated that the freestanding parylene-C film kept hollow construction without stiction. During the liquid supplying to the sensor, no liquid leakage was observed because output current shows constant. In conclusion, the nanocavity sealing process was successfully demonstrated.

关键词： Optical interferometry Films Etching Liquids Biomembranes Biomedical optical imaging Optical sensors

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Realization of 1 million pixel charge transfer type ion image sensor with 12 µm pixel pitch

Realization of 1 million pixel charge transfer type ion imag...

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International Conference on Solid State Sensors and Actuators (TRANSDUCERS)

作者： M. Futagawa R. Otake F. Dasai M. Ishida K. Sawada Shizuoka University Hamamatsu Japan Toyohashi University of Technology Toyohashi Japan Core Research for Evolutional Science and Technology Japan Science and Technology Agency Japan

An advanced charge transfer type hydrogen image sensor consisting of 1024 × 1024 pixels with 12.1 μm pixel pitch, which contains the most pixels to date and half pitch compared to previous works, was fabricated. The new pixel layout of common ID electrodes and partition scanning system were designed for high-density image element (12.1 μm) and preventing a readout lag time. The pH sensitivity is 29.8 mV/pH using standard pH solutions. All 1024 × 1024 pixels are capable of measuring hydrogen ions, as demonstrated in the video of the hydrogen ion movement on the new sensor chip. To realize the high-density array sensor, observance of various movements of a cell can perform.

关键词： Hydrogen Charge transfer Image sensors Electric potential Electrodes Arrays Sensors

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Interconversion between formate and hydrogen carbonate by tungsten-containing formate dehydrogenase-catalyzed mediated bioelectrocatalysis

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Sensing and Bio-Sensing research 2015年 5卷 90-96页

作者： Sakai, Kento Hsieh, Bo-Chuan Maruyama, Akihiro Kitazumi, Yuki Shirai, Osamu Kano, Kenji Division of Applied Life Sciences Graduate School of Agriculture Kyoto University Sakyo Kyoto 606-8502 Japan Department of Bio-Industrial Mechatronics Engineering College of Bio-Resources and Agriculture National Taiwan University Taipei 10617 Taiwan Core Research for Evolutional Science and Technology (Crest) Japan Science and Technology Agency (JST) Chiyoda Tokyo 102-00076 Japan

We have focused on the catalytic properties of tungsten-containing formate dehydrogenase (FoDH1) from Methylobacterium extorquens AM1 to construct a bioelectrochemical interconversion system between formate (HCOO^-) and hydrogen carbonate (HCO₃^-). FoDH1 catalyzes both of the HCOO oxidation and the HCO₃^- reduction with several artificial dyes. The bi-molecular reaction rate constants between FoDH1 and the artificial electron acceptors and NAD⁺ (as the natural electron acceptor) show the property called a linear free energy relationship (LFER), indicating that FoDH1 would have no specificity to NAD⁺. Similar LFER is also observed for the catalytic reduction of HCO₃^-. The reversible reaction between HCOO^- and HCO₃^- through FoDH1 has been realized on cyclic voltammetry by using methyl viologen (MV) as a mediator and by adjusting pH from the thermodynamic viewpoint. Potentiometric measurements have revealed that the three redox couples, MV²⁺/MV⁺, HCOO^-/HCO₃^-, FoDH1 (ox/red), reach an equilibrium in the bulk solution when the two-way bioelectrocatalysis proceeds in the presence of FoDH1 and MV. The steady-state voltammograms with two-way bioelectrocatalytic properties are interpreted on a simple model by considering the solution equilibrium. © 2015 The Authors.

关键词： Bioelectrocatalytic potentiometry CO2 reduction Formate oxidation Reversible bioelectrocatalysis Tungsten-containing formate dehydrogenase

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Structures of the Heme Acquisition Protein HasA with Iron(III)‐5,15‐Diphenylporphyrin and Derivatives Thereof as an Artificial Prosthetic Group

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Angewandte Chemie 2017年第48期129卷

作者： Hiromu Uehara Yuma Shisaka Tsubasa Nishimura Hiroshi Sugimoto Yoshitsugu Shiro Yoshihiro Miyake Hiroshi Shinokubo Yoshihito Watanabe Osami Shoji Department of Chemistry Graduate School of Science Nagoya University Furo-cho Chikusa-ku Nagoya 464-8602 Japan Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan Core Research for Evolutional Science and Technology Japan Science and Technology Agency 5 Sanbancho Chiyoda-ku Tokyo 102-0075 Japan RIKEN SPring-8 Center 1-1-1 Kouto Sayo Hyogo 679-5148 Japan Guraduate School of Life Science University of Hyogo 3-2-1 Kouto Sayo Hyogo 678-1297 Japan Research Center for Materials Science Nagoya University Furo-cho Chikusa-ku Nagoya 464-8602 Japan

Iron(III)‐5,15‐diphenylporphyrin and several derivatives were accommodated by HasA, a heme acquisition protein secreted by Pseudomonas aeruginosa , despite possessing bulky substituents at the meso position of the porphyrin. Crystal structure analysis revealed that the two phenyl groups at the meso positions of porphyrin extend outside HasA. It was shown that the growth of P. aeruginosa was inhibited in the presence of HasA coordinating the synthetic porphyrins under iron‐limiting conditions, and that the structure of the synthetic porphyrins greatly affects the inhibition efficiency.

关键词： HasA Hämoproteine Proteinstrukturen Synthetische Porphyrine Wachstumsinhibition

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Cartan symmetries and global dynamical systems analysis in a higher-order modified teleparallel theory

arXiv

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arXiv 2017年

作者： Karpathopoulos, L. Basilakos, S. Leon, G. Paliathanasis, A. Tsamparlis, M. Faculty of Physics Department of Astronomy-Astrophysics-Mechanics University of Athens Panepistemiopolis Athens157 83 Greece Academy of Athens Research Center for Astronomy and Applied Mathematics Soranou Efesiou 4 Athens11527 Greece Departamento de Matemáticas Universidad Católica del Norte Avda. Angamos 0610 Casilla Antofagasta1280 Chile Instituto de Ciencias Físicas y Matemáticas Universidad Austral de Chile Valdivia Chile Department of Mathematics and Natural Sciences Core Curriculum Program Prince Mohammad Bin Fahd University Al Khobar31952 Saudi Arabia Institute of Systems Science Durban University of Technology PO Box 1334 Durban4000 South Africa

In a higher-order modified teleparallel theory cosmological we present analytical cosmological solutions. In particular we determine forms of the unknown potential which drives the scalar field such that the field equations form a Liouville integrable system. For the determination of the conservation laws we apply the Cartan symmetries. Furthermore, inspired from our solutions, a toy model is studied and it is shown that it can describe the Supernova data, while at the same time introduces dark matter components in the Hubble function. When the extra matter source is a stiff fluid then we show how analytical solutions for Bianchi I universes can be constructed from our analysis. Finally, we perform a global dynamical analysis of the field equations by using variables different from that of the Hubble-normalization. Copyright © 2017, The Authors. All rights reserved.

关键词： Cosmology

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Inside Back Cover: Structures of the Heme Acquisition Protein HasA with Iron(III)-5,15-Diphenylporphyrin and Derivatives Thereof as an Artificial Prosthetic Group (Angew. Chem. Int. Ed. 48/2017)

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Angewandte Chemie International Edition 2017年第48期56卷

作者： Hiromu Uehara Yuma Shisaka Tsubasa Nishimura Dr. Hiroshi Sugimoto Prof. Dr. Yoshitsugu Shiro Dr. Yoshihiro Miyake Prof. Dr. Hiroshi Shinokubo Prof. Dr. Yoshihito Watanabe Dr. Osami Shoji Department of Chemistry Graduate School of Science Nagoya University Furo-cho Chikusa-ku Nagoya 464-8602 Japan Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8603 Japan Core Research for Evolutional Science and Technology Japan Science and Technology Agency 5 Sanbancho Chiyoda-ku Tokyo 102-0075 Japan RIKEN SPring-8 Center 1-1-1 Kouto Sayo Hyogo 679-5148 Japan Guraduate School of Life Science University of Hyogo 3-2-1 Kouto Sayo Hyogo 678-1297 Japan Research Center for Materials Science Nagoya University Furo-cho Chikusa-ku Nagoya 464-8602 Japan

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Innenrücktitelbild: Structures of the Heme Acquisition Protein HasA with Iron(III)‐5,15‐Diphenylporphyrin and Derivatives Thereof as an Artificial Prosthetic Group (Angew. Chem. 48/2017)

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Angewandte Chemie 2017年第48期129卷

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Apartment Building Energy Management System in Group Optimization with Electricity Interchange Using In-Vehicle Batteries

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SICE Journal of Control, Measurement, and System Integration 2015年第1期8卷 52-60页

作者： Akihiko Kawashima Takuma Yamaguchi Ryosuke Sasaki Shinkichi Inagaki Tatsuya Suzuki Akira Ito Graduate School of Engineering Nagoya University Graduate School of Engineering Nagoya UniversityJST-CREST: Core Research for Evolutional Science and Technology Japan Science and Technology Agency Graduate School of Engineering Nagoya UniversityDENSO CORPORATION

In Vehicle-to-Home (V2H) systems, charge/discharge scheduling of in-vehicle battery installed in Electric Vehicles (EVs) or Plug-in Hybrid Vehicles (PHVs) is very important in order to operate the battery as an storage and a source of electricity for the car owner's home. This significance of the battery is similarly applied to apartment buildings not only to homes. In this paper, the authors proposed an Energy Management System (EMS) for apartment buildings based on model-predictive control (MPC) using group optimization with electricity interchange from in-vehicle batteries, and the authors investigate and verify the usefulness of the proposed system for apartment buildings where households have various patterns in profiles of electricity consumption and vehicle use.

关键词： smart grid energy management system model predictive control group optimization apartment building

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Theoretical study on oxygen dissociation reaction on LaSrCoO3

Theoretical study on oxygen dissociation reaction on LaSrCoO...

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14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015;held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage

作者： Ishimoto, T. Sato, K. Tada, T. Amezawa, K. Koyama, M. INAMORI Frontier Research Center Kyushu University Fukuoka819-0395 Japan Core Research for Evolutional Science and Technology Japan Science and Technology Tokyo102-0076 Japan Material Research Center for Element Strategy Tokyo Institute of Technology Yokohama226-8503 Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku University Sendai980-8577 Japan International Institute for Carbon-Neutral Energy Research Kyushu University Fukuoka819-0395 Japan

ISBN: (纸本)9781607685395

Doped lanthanum cobaltite and its derivatives are used as cathode materials in solid oxide fuel cell. It is expected that the high catalytic materials for oxygen adsorption and dissociation on oxide surface are found by the controlling the electronic structure of doped lanthanum cobaltite. In this study, we analyzed the stability of oxygen vacancy and surface reaction of oxygen under different spin states of Co ion in Sr doped LaCoO3 by using density functional theory. We clearly found that the difference of oxygen vacancy position and spin state of Co ion affects the reactivity of oxygen on surface. © The Electrochemical Society.

关键词： Oxygen vacancies

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Scenario for catastrophic failure in interconnect structures under chip package interaction

Scenario for catastrophic failure in interconnect structures...

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Annual International Symposium on Reliability Physics

作者： Masaki Omiya Shoji Kamiya Nobuyuki Shishido Kozo Koiwa Hisashi Sato Masahiro Nishida Takashi Suzuki Tomoji Nakamura Toshiaki Suzuki Takeshi Nokuo Core Research for Evolutional Science and Technology JST Tokyo Japan Department of Mechanical Engineering Keio University Yokohama Japan Core Research for Evolutional Science and Technology JST Tokyo Japan Nagoya Institute of Technology Nagoya Japan Fujitsu Laboratories Ltd. Atsugi Japan JEOL Ltd. Akishima Japan

ISBN: (纸本)9781467373630

This paper describes the critical importance of interfacial strength between copper lines and cap layer for catastrophic failure due to chip-package interaction (CPI). Recently, copper interconnects and insulating layers are stacked alternately in semiconductor devices. Especially, copper/low-k structures are widely selected. However, the low-k materials have weak mechanical properties, which sometimes induces reliability issues, especially, chip package interactions. In our previous works, the interfacial strength of Cu/Cap has been successfully measured on the sub-micron scale. In this paper, based on the measured results, we try to simulate the initiation and propagation of failure in interconnect structures and discuss the scenario for catastrophic failure under CPI.

关键词： Copper Stress Integrated circuit interconnections Reliability Delamination Numerical models Adhesives

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