高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
25 巻 , 2 号
選択された号の論文の13件中1~13を表示しています
巻頭言
特集:生物関連高圧研究の最前線
受賞記念解説:高圧力学会学会賞
  • 赤坂 一之
    2015 年 25 巻 2 号 p. 155-164
    発行日: 2015年
    公開日: 2015/06/10
    ジャーナル フリー
    The combination of high-resolution NMR spectroscopy with pressure perturbation, known as variable-pressure NMR spectroscopy or simply high-pressure NMR spectroscopy, is a relatively recent accomplishment, but is now a technique expanding rapidly with high promise in future. The importance of the method is that it allows, for the first time in history, a systematic detection and analysis of structures of high-energy sub-states in proteins along with their equilibrium populations. Here I describe how the method discloses the new concept and roles of proteins in the biological world. Furthermore, I expect that the knowledge on high-energy sub-states of proteins obtained in this way will contribute to a more logical and efficient use of pressure in food and other applications.
受賞記念解説:高圧力学会奨励賞
  • 坂巻 竜也
    2015 年 25 巻 2 号 p. 165-171
    発行日: 2015年
    公開日: 2015/06/10
    ジャーナル フリー
    Knowledge about magma in the interior of the Earth is important to understand the formation and evolution of the early Earth, and the volcanic activity of current Earth. In order to replicate the Earth's internal conditions and study the deep magma, high-pressure techniques are necessary. In this article, high-pressure experiments on silicate melt/glass and newly acquired results are reviewed with focusing on the following 3 topics; (1) the gravitational stability and the mobility of magma in the Earth's and planetary interiors based on physical property (e.g., density and viscosity) measurements; (2) the effect of volatile components, such as H2O and CO2, on magma density; (3) the relationship between the degree of polymerization and the structure/properties of silicate melts and glasses under high-pressure condition.
  • 西 真之
    2015 年 25 巻 2 号 p. 172-180
    発行日: 2015年
    公開日: 2015/06/10
    ジャーナル フリー
    Atomic diffusion rates and transformation mechanims of mantle minelars provide important constraints for understanding many physical and chemical processes in the Earth's interior, including mantle rheology and chemical transportation. Here I introduce two recent experimental studies on the atomic diffusivity and transformation mechanisms of mantle minerals under lower mantle conditions up to 50 GPa using a Kawai-type high-pressure apparatus combined with sintered diamond anvils. Diffusion-controlled growth kinetics of the polycrystalline MgSiO3 bridgmanite enabled us to estimate the grain boundary diffusivity of bridgmanite in the lower mantle. Also, metastability of the deep subducted plate was disscussed based on the mechanism changes through the post-garnet transformation under large over pressure conditions.
研究室紹介
サロン
feedback
Top