Masahiro Suzuki

Fujita Health University Hospital

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Kazutake Uehira

Kanagawa Institute of Technology

Piyarat Silapasuphakornwong

Bangkok University

Hideyuki Torii

Kanagawa Institute of Technology

Youichi Takashima

NTT (Japan)

N. Kawai

Tokyo Institute of Technology

Nakamura Kousuke

University of Yamanashi

Makoto Fujimaki

National Institute of Advanced Industrial Science and Technology

Seiichiro HIRONAKA

Tokyo Metropolitan Institute of Medical Science

M. Morii

Harvard University

Yoshimichi Ohki

Waseda University

Cooperative Institutions

Tokyo Institute of Technology

The University of Tokyo

Kyoto University

Osaka University

Waseda University

RIKEN

National Institute of Advanced Industrial Science and Technology

Institute of Space and Astronautical Science

Tohoku University

Nagoya University

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Lubricities of Complex Oxides SrxCa1-xCuO2 as Solid Lubricants in Oil Boundary Lubrication.

Sekiyu Gakkaishi (2000)

Masahiro Suzuki Kazuhiro IZUMI Seiichiro HIRONAKA Masami Sasaki

複合酸化物, Sr0.14Ca0.86CuO2, SrCuO2およびCaCuO2をSrCO3, CaCO3およびCuOから焼結法によって作製した。試料粉末は粘度の異なるパラフィン系鉱油に添加し, 油境界潤滑下におけるこれらの潤滑特性を Falex 型試験機で評価した。その結果, これら複合酸化物粉末を鉱油に添加することで, 低粘度油でもその潤滑性が改善された。また, その時の添加量は2～5mass%の低濃度で効果を示し, 耐焼付き性および低摩擦係数が得られた。これらの潤滑特性は油性剤および分散剤としてのオレイン酸をともに用いることでさらに向上する。特に, 無限層構造をもつSr0.14Ca0.86CuO2は, 低粘度基油でさえもオレイン酸を併用することで, よりよい摩擦摩耗特性を示した。

Boundary lubrication

Dry lubricant

10.1627/jpi1958.43.249

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Analysis on the potential of Eco-materials, from the "design" perspective

Hideyoshi YANAGISAWA Fujio Masuda Katsumi Suzuki Masahiro Suzuki

When considering the transformation of a material to a product, many conditions and criteria have to be met. One of the most important criteria is the external design quality, because the evaluation and the final selection of a product's exterior (outer-most) material is frequently determined by a designer. When an Eco-material is employed to substitute the existing conventional material for a product, the substitute's physical property should not be significantly lower than the existing one. The evaluation of such measures can be done quantitatively. On the other hand, an Eco-material's "design" evaluation is very difficult with quantitative measures, because the aesthetic effectiveness of a material is particularly difficult to judge numerically and logically. Rather, its evaluation is done sensuously. In order to evaluate Eco-material qualitatively, an Eco-material evaluation diagram was developed. This diagram can be utilized to analyze and evaluate a material from the design and environmental perspectives. From the evaluation of several Eco-materials by the diagram, it was found that the most important "design" criteria for a preferable Eco-material is the uniqueness and distinctiveness of the material's texture. As a future task, a further modification of the diagram can be made so that the diagram can be used as a practical "tool" for evaluating materials.

Optimal distinctiveness theory

Material selection

Material Design

10.1109/vetecf.2003.239733

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High Energy Observations of XRF030723

AAS/High Energy Astrophysics Division #8 (2004)

N. Butler T. Sakomto Masahiro Suzuki D. Q. Lamb C. Graziani

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Multi-layer modeling of poloidal current drive by transverse rotating magnetic field in cylindrical plasma

Jiuhui Lin A. Mizuno Katsuyuki Arimoto A. Tajima M Saito

Summary form only given. Simulation results are presented. The rotating magnetic field (RMF) was found to have a useful application to driving the poloidal current in Rotamak, RFP, and FRC. Using a multilayer model of an infinite cylindrical plasma, the penetration of RMF into plasmas was simulated. An attempt was made to (1) establish a simulation method using a multilayer model, (2) investigate the penetration time for applying current drive to a newly designed RFP device, (3) investigate the relation between the amount of driven current and the ratio of magnitude of RMF to electron collision frequency, (4) investigate the current drive efficiency of the RMF method, and (5) investigate the change of axial magnetic field distribution during the RMF current drive

Penetration (warfare)

Rotating magnetic field

10.1109/plasma.1990.110496

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Erratum to “Birefringence in optical fibers formed by proton implantation” [Nucl. Instr. and Meth. B 265 (2007) 490]

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2008)

Seung Jun Yu Masahiro Suzuki Yoshimichi Ohki Makoto Fujimaki Koichi Awazu

Meth-

10.1016/j.nimb.2008.02.044

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609 Evaluation of endurance of coatings for press working die

The Proceedings of Ibaraki District Conference (2011)

Kaoru Inoue Masahiro Suzuki Tomomi TOBITA Souichiro Nishino Yo Tomota

In this study, we examined the damage of coatings on press working die in the slide loading condition. The SKD11 was selected as the base metal of the test piece because of frequent application as die steel. The slide tests could be carried out with making our own testing dies on actual press working condition. On the slide tests, TRD and CVD coating were selected. The slide damage of TRD coatings was smaller than that of CVD coatings. The slide damage of coatings was quantitatively evaluated by the X-ray diffraction technique and surface roughness. The surface damage was the adhesion of zinc moved from the hot dip galvanizing blank sheet.

Blank

10.1299/jsmeibaraki.2011.19.167

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Design of (2+1+2)D FFT for Interferometric Pulsar Survey

International Astronomical Union Colloquium (1996)

T. Daishido Naoki Tanaka S. Sudo Masahiro Suzuki Yoshiharu Saito

Abstract The Following design of a Pulsar Survey System with a Huge Interferometric Array is discussed. (1) A Huge Array of 320m × 320m with 256(= 16 × 16) spherical dishes of 20m in diameter, (2) RF is 1.4 GHz, (3) Receivers are frequency modified GPS(1.57542, 1.2276GHz) ones, (4) Phase and Delay Tracking, (5) Phase Calibration using Differential GPS(GPS signal × 2 → CW), (6) (2+1+2)D FFT /256 pixel Imaging + 256 ch Filtering + Dispersion Removal and Period finding(17M point floating 2DFFT by DSP), (8) Observing time required for the same sensitivity to Arecibo τ/τ A : 0.88(Timing), 0.003(Survey).

SIGNAL (programming language)

10.1017/s0252921100040914

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Readout of copyright information hidden in objects fabricated with 3-D printers

IEICE Technical Report; IEICE Tech. Rep. (2015)

Piyarat Silapasuphakornwong Masahiro Suzuki Kazutake Uehira Youichi Takashima Hiroshi Unno

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小型GNSS受信機を用いた水域環境におけるAR可視化システムの構築

Japanese Journal of JSCE (2023)

Masahiro Suzuki Hiroshi Okawa R. Nakaso Kazuo Kashiyama

本論文は,マーカー設置が不要なロケーションベースARに着目し,小型GNSS受信機を用いて位置情報を取得する水環境流れのAR可視化を行うシステムの構築を行った.小型GNSS受信機の位置情報の取得精度をオープンスカイ環境下と非オープンスカイ環境下で比較するとともに,2台の受信機を用いて角度補正を行うことで,簡便かつ高精度に重畳を行う手法を示した.本可視化手法の妥当性と有効性を検討するために,都市河川流れの可視化を例に従来のマーカーベースAR可視化手法との比較を行った.

10.2208/jscejj.22-22013

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Ferruled lensed-fibers having high focusing power both in the air and resin

IEICE Technical Report; IEICE Tech. Rep. (2012)

Masahiro Suzuki Masaru Horiuchi Hidehiko Yoda Kazuo Shiraishi

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