Atsuhiko Banno, Takeshi Masuda, Takeshi Oishi, Katsushi Ikeuchi,
We have been conducting a project to digitize the Bayon temple, located at the center of Angkor-Thom in the kingdom of Cambodia. This is a huge structure, more than 150 meters long on all sides and up to 45 meters high. Digitizing such a large-scale object in fine detail requires developing new types of sensors for obtaining data of various kinds related to irregular positions such as the very high parts of the structure occluded from the ground. In this article, we present a sensing system with ...
Tópico(s): Advanced Image and Video Retrieval Techniques
2007 - Springer Science+Business Media | International Journal of Computer Vision
Y. Mizuana, K. Nakamura, Y. Suzuki, Y. Oishi, Yuichi Tachiya, Kingo Kuritani,
Magnetic gears have several advantages such as having low acoustic noise and being maintenance-free because there is no mechanical contact. Among these gears, the flux-modulated type has a higher torque density and efficiency than the other types. Therefore, it is expected to be put into practical use. In previous papers, a spoke-shaped interior permanent magnet (IPM) rotor structure was proposed in order to reduce the eddy current loss in magnets. This paper presents three methods for improving ...
Tópico(s): Magnetic Properties and Applications
2021 - | Journal of the Magnetics Society of Japan
Masanobu Kobayashi, Mutsumi Asano, Y. Maeno, K Oishi, K. Kawamura,
Rare earth-transition metal amorphous films are promising for use in erasable optical memory media. A number of studies have been made of corrosion or reliability of the media, and for practical use, more systematic tests on corrosion and reliability are essential. We have studied dependences of pitting corrosion on aging humidity and temperature. Specimens were noncoated, SiO-coated, or SiO2-coated TbFe and TbCoFeTi films deposited onto glass substrates by RF sputtering and were aged at a variety ...
Tópico(s): Photonic Crystals and Applications
1987 - | Journal of the Magnetics Society of Japan
Masayuki Naoe, T. Omura, Masatsugu Oishi, Shinya Okazaki, T. Sato, K. Yamasawa, Yoshinao Miura,
Mn-substituted Li-Zn-Cu ferrite polycrystal is known to be a high-frequency ferrite. The authors recently clarified that this ferrite exhibits strong temperature-dependent magnetic properties. To our knowledge, detailed information on the temperature dependence of this new temperature-sensitive ferrite has not been reported. In the present study, several polycrystalline ferrites were fabricated while controlling the Li-ferrite content to investigate the chemical composition dependence of the temperature ...
Tópico(s): Magnetic Properties and Applications
2008 - | Journal of the Magnetics Society of Japan
Masayuki Naoe, T. Omura, Masatsugu Oishi, Shinya Okazaki, Toshiro Sato, K. Yamasawa, Yoshitaka Miura,
Li-Zn-Cu ferrite polycrystal as a high-frequency ferrite is distinguished by its temperature sensitivity. In a previous paper, we pointed out that Li-ferrite, the main component of Li-Zn-Cu ferrite causes the temperature sensitivity. This result would suggest the influence of the large temperature coefficient of the anisotropy constant of Li-ferrite. The purpose of the present work is to investigate the effect of partial Mn substitution of Fe on the temperature sensitivity of Li-Zn-Cu ferrite polycrystal. ...
Tópico(s): Magnetic properties of thin films
2009 - | Journal of the Magnetics Society of Japan