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1,052 results on '"Nose, Y"'

51. The homogeneity ranges of the L1(2)-type intermetallic compounds Ni3Ga and Ni3Ge

Author

Ikeda, T, Nose, Y, Korata, T, Numakura, H, and Koiwa, M

Abstract

The homogeneity ranges of the L12-ordered compounds Ni3Ga and Ni3Ge and the boundaries of the neighboring phases have been examined by electron probe microanalysis using heterophase alloys in the temperature ranges 1073 to 1373 K (Ni-Ga) and 1073 to 1346 K (Ni-Ge). The composition ranges of the L12-ordered phases have been found to be narrower than those reported in the literature, on the Ga-rich side for Ni3Ga and on the Ge-deficient side for Ni3Ge.

Published
1999

61. DATA BASE OF THE INTERPRETATIONS OF AUTOMATED ECG ANALYSIS

Author

Nose, Y., primary, Yamagishi, K., additional, Nose, R., additional, Shibahara, T., additional, Tateishi, S., additional, Mimura, Y., additional, Nakagaki, O., additional, Inoue, T., additional, Watanabe, Y., additional, Yokota, M., additional, and Nakamura, M., additional

Published
1981
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66. Evaluation of floating impeller phenomena in a Gyro centrifugal pump

Author

Nishimura, Ikuya, Ichikawa, S., Mikami, M., Ishitoya, H., Motomura, T., Kawamura, M., Linneweber, J., Glueck, J., Shinohara, T., Nose, Y., Nishimura, Ikuya, Ichikawa, S., Mikami, M., Ishitoya, H., Motomura, T., Kawamura, M., Linneweber, J., Glueck, J., Shinohara, T., and Nose, Y.

Abstract

The Gyro centrifugal pump developed as a totally implantable artificial heart was designed with a free impeller, in which the rotational shaft (male bearing) of the impeller was completely separated from the female bearing. For this type of pump, it is very important to keep the proper magnet balance (impeller-magnet and actuator-magnet) in order to prevent thrombus formation and/or bearing wear. When the magnet balance is not proper, the impeller is jerked down into the bottom bearing. On the other hand, if magnet balance is proper, the impeller lifted off the bottom of the pump housing within a certain range of pumping conditions. In this study, this floating phenomenon was investigated in detail. The floating phenomenon was proved by observation of the impeller behavior using a transparent acrylic pump. The impeller floating phenomenon was mapped on a pump performance curve. The impeller floating phenomenon is affected by the magnet-magnet coupling distance and rotational speed of the impeller. In order to keep the proper magnet balance and to maintain the impeller floating phenomenon at the driving condition of right and left pump, the magnet-magnet coupling distance was altered by a spacer which was installed between the pump and actuator. It became clear that the same pump could handle different conditions (right and left ventricular assist), by just changing the thickness of the spacer. When magnet balance is proper, the floating impeller phenomenon occurs automatically in response to the impeller rev. It is called "the dynamic RPM suspension".

Published
2013

67. Evaluation of floating impeller phenomena in a Gyro centrifugal pump

Author

1000000228214, Nishimura, Ikuya, Ichikawa, S., Mikami, M., Ishitoya, H., Motomura, T., Kawamura, M., Linneweber, J., Glueck, J., Shinohara, T., Nose, Y., 1000000228214, Nishimura, Ikuya, Ichikawa, S., Mikami, M., Ishitoya, H., Motomura, T., Kawamura, M., Linneweber, J., Glueck, J., Shinohara, T., and Nose, Y.

Abstract

The Gyro centrifugal pump developed as a totally implantable artificial heart was designed with a free impeller, in which the rotational shaft (male bearing) of the impeller was completely separated from the female bearing. For this type of pump, it is very important to keep the proper magnet balance (impeller-magnet and actuator-magnet) in order to prevent thrombus formation and/or bearing wear. When the magnet balance is not proper, the impeller is jerked down into the bottom bearing. On the other hand, if magnet balance is proper, the impeller lifted off the bottom of the pump housing within a certain range of pumping conditions. In this study, this floating phenomenon was investigated in detail. The floating phenomenon was proved by observation of the impeller behavior using a transparent acrylic pump. The impeller floating phenomenon was mapped on a pump performance curve. The impeller floating phenomenon is affected by the magnet-magnet coupling distance and rotational speed of the impeller. In order to keep the proper magnet balance and to maintain the impeller floating phenomenon at the driving condition of right and left pump, the magnet-magnet coupling distance was altered by a spacer which was installed between the pump and actuator. It became clear that the same pump could handle different conditions (right and left ventricular assist), by just changing the thickness of the spacer. When magnet balance is proper, the floating impeller phenomenon occurs automatically in response to the impeller rev. It is called "the dynamic RPM suspension".

Published
2013

79. Diffusion of Fe-59 in gamma-TiAl single crystals

Author

00375106, 30213135, Terashita, N, Nose, Y, Ikeda, T, Nakajima, H, Inui, H, Yamaguchi, M, 00375106, 30213135, Terashita, N, Nose, Y, Ikeda, T, Nakajima, H, Inui, H, and Yamaguchi, M

Published
2003

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