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Milling-induced reset of thermoluminescence and deformation of hydroxyl species in the near-surface layers of quartz grains

100%

Takeuchi A. , Hashimoto T.

tom Vol. 32

61-68

Reset mechanisms of thermoluminescence (TL) signals in the near-surface layers (∼500 nm thick) of quartz grains during milling are discussed on the basis of the dependence of TL glow-curves and infrared absorption spectra on grain diameter. TL measurements (heating to 370 °C at 1 °C/s) indicate that the near-surface layer does not seem to emit TL at ∼250-400 °C, especially in the blue range, even in TL measurements after re-irradiation. In contrast, the layer seems to emit more TL at ∼130 °C than the inner original quartz. On the other hand, diffused reflection infrared Fourier transform spectrometry indicates that hydroxyl species (e.g. Al-OH, Li-dependent OH and molecular H2O species) are deformed in the near-surface layer. These two series of data suggest that TL recombination sites in the near-surface layer are deformed or broken during milling and contribute to TL emission unusually strongly.

Cytotoxic and Antiviral Compounds from Bryophytes and Inedible Fungi

80%

Asakawa Y. , Ludwiczuk A. , Hashimoto T.

Journal of Pre-Clinical and Clinical Research

2013

tom 07

nr 2

Dichronic orientation of phytochrome and blue-light photoreceptor in Adiantum protonemata as determined by chloroplast movement

80%

Yatsuhashi H. , Wada M. , Hashimoto T.

tom 09

nr 3

Fatigue properties of TiNi shape memory alloy and applications to a heat engine and an actuator

70%

Tobushi H. , Nakahara T. , Hashimoto T. , Shimeno Y. , Tanaka K.

Archives of Mechanics

1999

tom Vol. 51, nr 6

833-845

The fatigue properties of a TiNi shape-memory alloy (SMA) wire in the region of the martensitic transformation and the R-phase transformation are investigated. The rotating-bending fatigue life of a wire in the region of the R-phase transformation is longer than 10'7 cycles. A tilt-disk offset SMA heat engine and an indirect-heated SMA thermal actuator are developed.

Introduction of three-dimensional measurement technologies developed and applied in suzuki motor corporation

51%

Yamage Y. , Aoki T. , Hashimoto T. , Rövid A. , Shibahara T. , Akatsuka S. , Suzuki H. , Takeshi M. , Ono M.

tom Vol. 3, No. 4

220-223

Suzuki Motor Corporation (SMC) recognizes the importance of collaborative projects with Universities and how it contributes to technological development effectively. In spite of the world economical depression, several projects could get started this year leaded by SMC. As a researcher of SMC, Author takes charge of two collaborative projects and introduces these as typical examples of the most successful collaborations. The first is, "3D Measurement System for Crash Tested Car" at Shizuoka University (Japan) and Budapest Tech Polytechnical Institute (Hungary) from 2008; the second is, "High-Accuracy Stereo Vision System Based on Phase-Only Correlation (POC) and Its Application to metal Component Inspection" with Tohoku Univ. (Japan) 2003-2005. By these collaborations, the profound knowledge of universities has a lot of possibility to suits the technical needs of SMC.

An introduction of high-precise 3D measurement system and its applications

41%

Hashimoto T. , Kaneko M. , Rövid A. , Isono S. , Sone T. , Baba K. , Fukuda A. , Aniya M. , Naito N. , Enomoto H. , Skvarca P.

tom Vol. 3, No. 4

25-28

We have been studying the high-precision three-dimensional measurement system using cameras. In this paper, our system is verified, and its application is reported. The principle of our measurement system is based on the stereo measurement. In our system, reducing the quantization error by numerical processing can realize the highprecision 3D measurement at the long distance. This measurement system has many applications, such as industrial use, ITS, robotics, and many others. Our system has been applied on the observation of the glacier. The Perito Moreno glacier, which is our target, moves very fast and the moving speed is reported as about 2 m/day. Then, it is thought that the important information about the global warming can be obtained by observing this glacier. But, as the width of the glacier is several km, there were no reports of continuously observing the movement of the glacier in high accuracy. As a result, the unique observation results about the daily movement of the glacier were measured. The observation of the glacier flow was carried out for the third straight year. In this paper, the valuable results of the glacier observation and experimental results to verify the precision are discussed.