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Volume 26 (2012)
- Issue 4 Pages 179-
- Issue 3 Pages 122-
- Issue 2 Pages 86-
- Issue 1 Pages 9-
Volume 26, Issue 3
Displaying 1-3 of 3 articles from this issue
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Yvan Llave, Tomoaki Hagiwara, Takaharu Sakiyama2014 Volume 26 Issue 3 Pages 122-127
Published: 2014
Released on J-STAGE: December 31, 2014
JOURNAL FREE ACCESSPrecise knowledge of thermophysical properties is essential to understand the dynamics of thermal processing of foods. In this study, specific heat values of Japanese anchovy muscles with different fat contents were measured by using differential scanning calorimetry (DSC). As the results of quantification of crude fat and moisture contained in the muscles, the sum of the crude fat content and the moisture content was almost constant even though the fat content varied by the purchase month and by the body position. The specific heat of anchovy muscle evaluated at 100°C increased linearly with the moisture content. The specific heat also increased slightly but linearly with elevating temperature from 62 to 115°C. An empirical equation was deduced based on the above results and found to give fairly good approximations to the measured values of specific heat.View full abstractDownload PDF (960K) -
Masashi Kuwahara, Rie Endo, Kouichi Tsutsumi, Fukuyoshi Morikasa, Tosh ...2014 Volume 26 Issue 3 Pages 128-135
Published: 2014
Released on J-STAGE: December 31, 2014
JOURNAL FREE ACCESSWe have developed a system for the measurement of the complex refractive index of both molten and solid chalcogenide materials at high temperature. The system consists of a spectroscopic ellipsometer, an infrared heating system, and prism optics. A sealed custom fabricated quartz cell was used to confine the chalcogenide sample material; the cell was evacuated to avoiding sample degradation due to oxidation or evaporation. The complex refractive index of molten and solid Sb2Te3 was measured over a wavelength range from 300 to 1000 nm. The imaginary part of the complex refractive index of the molten state was found to be significantly smaller than that of the solid over the observed wavelength range. Our results are consistent with the idea that a molten area created in the center of a focused laser spot can function as a small dynamic aperture in the super-resolution readout effect in optical disks.View full abstractDownload PDF (10568K) -
Takahiro OKABE, Hiroshi MASHIMO, Junnosuke OKAJIMA, Atsuki KOMIYA, Ich ...2014 Volume 26 Issue 3 Pages 136-141
Published: 2014
Released on J-STAGE: December 31, 2014
JOURNAL FREE ACCESSA novel method for measurement of thermal conductivity of soft materials and liquids with the polyimide film by utilizing a point contact method has been developed to solve several problems when it was applied to soft materials and liquids. Numerical simulation was carried out to evaluate the effect of the polyimide film. In addition, water, agar, fat and muscle of pig were selected as soft materials and liquids and their thermal conductivity were measured. As a result, the repeatability of measurement was improved by using the polyimide film, but there were differences between determined and literature value of thermal conductivities. A method in this study has a possibility to measure the thermal conductivity of soft materials and liquids by application of sample calibration correcting the bias.View full abstractDownload PDF (8172K)
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