H
Hiroshi Shirai
Researcher at Chuo University
Publications - 152
Citations - 850
Hiroshi Shirai is an academic researcher from Chuo University. The author has contributed to research in topics: Scattering & Diffraction. The author has an hindex of 13, co-authored 152 publications receiving 751 citations. Previous affiliations of Hiroshi Shirai include Hiroshima University & Nagoya Institute of Technology.
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Suzaku observation of grs 1915+105: evolution of accretion disk structure during limit-cycle oscillation
Yoshihiro Ueda,K. Honda,Hiromitsu Takahashi,Chris Done,Hiroshi Shirai,Yasushi Fukazawa,Kazutaka Yamaoka,Sachindra Naik,Hisamitsu Awaki,K. Ebisawa,Jerome Rodriguez,Sylvain Chaty +11 more
TL;DR: In this paper, the authors present results from the Suzaku observation of the microquasar GRS 1915+105 performed during the 2005 October multiwavelength campaign, which include both stable state (class χ) and limit-cycle oscillation (class θ).
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Parameter variation effects on temperature elevation in a steady-state, one-dimensional thermal model for millimeter wave exposure of one- and three-layer human tissue.
TL;DR: By considering the variation range of thermal and tissue thickness parameters which causes the maximum and minimum temperature elevations, the dominant parameter influencing the surface temperature elevation was found to be the heat transfer coefficient between the body surface and air.
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Relationship between power density and surface temperature elevation for human skin exposure to electromagnetic waves with oblique incidence angle from 6 GHz to 1 THz.
TL;DR: The analysis shows that the incident power density defined in the direction normal to the skin surface may underestimate the temperature elevation when TM waves are incident over the normal incidence up to the maximum transmittance angle.
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Rays, modes and beams for plane wave coupling into a wide open-ended parallel-plane waveguide
Hiroshi Shirai,L. B. Felsen +1 more
TL;DR: In this article, a plane wave incident obliquely onto the open end of a wide parallel-plane waveguide generates an interior field that resembles a geometric optical sheet beam whose initially well-defined shape gets diffused after undergoing multiple reflection.
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Effects of dielectric permittivities on skin heating due to millimeter wave exposure.
TL;DR: The parametric study on the total power absorbed in the skin showed that skin heating increases as the static permittivity and static conductivity decrease, smaller than the difference caused by the thermal and morphological parameters reported in the previous study.