Netsu Sokutei
Online ISSN : 1884-1899
Print ISSN : 0386-2615
ISSN-L : 0386-2615
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Volume 32, Issue 4
Displaying 1-7 of 7 articles from this issue
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  • Historical Development of the Temperature Concept and the Thermometers
    Seiji Takata
    2005 Volume 32 Issue 4 Pages 162-168
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.162
    JOURNAL FREE ACCESS
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    In this article is dealt with the history of the concept and the measuring method of temperature. Firstly, the relation of thermal sensation of human body to the temperature concept is discussed. Secondly, the rise and development of liquid-in-glass thermometers are described. Thirdly, the formation of thermodynamic concept of temperature is traced. Finally, the modern trends of conceptualization of temperature both in operationism and reductionism are pointed out.
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  • Analysis of Structural Phase Transition of a Small Protein
    Shinya Honda
    2005 Volume 32 Issue 4 Pages 169-177
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.169
    JOURNAL FREE ACCESS
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    This review describes the analytical techniques for evaluating the structural phase transition of a small protein. First, it outlines the significance of thermal analyses in protein research. Next, a practical limitation of micro DSC to detect the structural phase transition of a small protein is mentioned, though this method is adequate for ordinary proteins. We then introduce the strategy for analyzing a small protein combining the optical measurements using chemometrics and the atomic level analyses by NMR, which were conducted by us to overcome the above problem. Finally, the meaning of the thermodynamic result obtained from these analyses is discussed.
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  • Theoretical Study on the Phase Diagrams of Associating Polymers
    I. Non-gelling Systems
    Fumihiko Tanaka, Yukinori Okada
    2005 Volume 32 Issue 4 Pages 178-185
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.178
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    General theoretical scheme for studying phase diagrams of associating polymer solutions is presented. As the simplest example, phase diagrams with lower critical solution temperature (LCST), as seen in aqueous solutions of neutral polymers such as poly (ethylene oxide) and poly (N-isopropylacrylamide), are theoretically derived and compared with the recent experiments. It turns out that miscibility gaps of loop shape and hourglass shape appear depending upon the polymer molecular weight if hydration (association of water molecules onto the polymer chains by hydrogen bonds) takes place randomly and independently, while miscibility gaps of square shape with very flat LCST line appear independently of the polymer molecular weight if hydration is cooperative.
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  • Materials Design for High Lithium Ionic Conductor
    Masanobu Nakayama, Masataka Wakihara
    2005 Volume 32 Issue 4 Pages 186-194
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.186
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    Factors affecting the ionic conductivity of lithium have been discussed in this paper. Firstly, limitations of the classical concept were shown, such as Born-Mayer equation for the prediction of the activation energy during ionic migration. These classical concepts roughly reproduce the experimental behavior, however the deviations from the prediction occasionally occur. Some of the reasons for such deviations are due to the assumptions that the crystal was composed of perfect ionic bonds, no local structural distortion around defect site, and defects are not interact one another. To understand these effects, recent experimental and computational works are reviewed.
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  • Global Environment and Energy
    Koichi Yamada
    2005 Volume 32 Issue 4 Pages 195-200
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.195
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    Extensive usage of fossil fuels is causing CO2 emission increase and rapidly increasing the atmospheric CO2 concentration which causes the global warming. The atmospheric CO2 concentration should be stabilized at a low level to mitigate the global warming.
    Herein, projections of the world population, economic growth, energy consumption and energy sources in 100 years, which affect the CO2 emissions, are explained. CO2 mitigation measures, especially, carbon capture and storage technologies which are considered to be necessarily implemented for a world based on fossil fuels are described.
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  • [title in Japanese]
    2005 Volume 32 Issue 4 Pages 201-203
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.201
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  • Characterization of Coating layer for Double layer film by DMA
    Nobuaki Okubo, Nobutaka Nakamura
    2005 Volume 32 Issue 4 Pages 204-205
    Published: August 31, 2005
    Released on J-STAGE: September 07, 2009
    DOIhttps://doi.org/10.11311/jscta1974.32.204
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