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Volume 24 (2010)
- Issue 4 Pages 177-
- Issue 3 Pages 134-
- Issue 2 Pages 94-
- Issue 1 Pages 9-
Volume 24, Issue 2
Displaying 1-2 of 2 articles from this issue
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Saburo Tanaka, Masayuki Takashiri, Koji Miyazaki2014 Volume 24 Issue 2 Pages 94-100
Published: 2014
Released on J-STAGE: December 31, 2014
JOURNAL FREE ACCESSThe thermal conductivity of nano-porous Bi0.4Te3.0Sb1.6 prepared by a nano-particle coating method is measured at temperature range from 100 K to 300 K by using a 3ω method. Nanoparticle Bi0.4Te3.0Sb1.6 thin films exhibit an order of magnitude reduction in thermal conductivity compared to that of bulk alloys. The reduction of thermal conductivity is clarified by employing a simplified phonon scattering model. As a result, we considered that the phonon scattering at the nano-porous is responsible for the observed reduction in thermal conductivity.View full abstractDownload PDF (5817K) -
Kazuo Naito, Jun Yamada, Tatsuya Ogawa, Sadaki Takata2014 Volume 24 Issue 2 Pages 101-108
Published: 2014
Released on J-STAGE: December 31, 2014
JOURNAL FREE ACCESSRadiation transfer in human skin can be represented by the radiation transfer equation (RTE), assuming that human skin is a continuous medium in which the scattering and absorption of light occur. The RTE includes three radiative properties: the extinction coefficients, albedo, and scattering phase function. Among these radiative properties, so far, the scattering phase function has seldom been measured. In this study, we propose an estimation method for the scattering phase function based on the intensity profile of the light scattered by human skin. A system with a paraboloidal mirror and CCD camera was developed to measure the intensity distribution of the light scattered by human skin over a short time, and the scattering phase function of human skin grown in vitro was estimated.View full abstractDownload PDF (9107K)
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