巻号一覧
6 巻 (1979)
- 4 号 p. 132-
- 3 号 p. 89-
- 2 号 p. 45-
- 1 号 p. 2-
6 巻, 2 号
選択された号の論文の5件中1～5を表示しています
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伊藤 勝雄, 菅野 卓治1979 年 6 巻 2 号 p. 45-49
発行日: 1979/05/25
公開日: 2009/09/07
ジャーナル フリーIt was known that hexachloropropene (HCP) reacted exothermically with U3O8 and produced UCl5·TCAC (TCAC=trichloroacrylyl chloride), UCl6·HCP and UCl4. The peak areas of DSC curves for the reaction were proportional to the amount of U3O8, and they were not practically affected by the time of soaking of U3O8 in HCP, but affected by the specific surface areas of U3O8 and the heat-treatments of UO3. As the specific surface areas of U3O8 decreased, the peak areas of the DSC curves were constant, but the initial temperature (Ti) of the reaction moved to high one and the shapes of the DSC curve became broader. These effect given by the specific surface areas involved also the heat-treatment of UO3, since specific surface areas influenced greatly by the temperature of the heat-treatment. Difference of crystal structure of starting UO3 affected the Ti, that is, the lowest Ti temperature obtained for the U3O8 prepared from amorphous UO3. The overall heat of the reaction was estimated to be 569kJ for one mole of U3O8.抄録全体を表示PDF形式でダウンロード (728K) -
畠山 立子, 中村 邦雄, 畠山 兵衛1979 年 6 巻 2 号 p. 50-52
発行日: 1979/05/25
公開日: 2009/09/07
ジャーナル フリーThe amounts of three different types of water adsorbed on polymers containing hydrophilic groups were determined by differential scanning calorimetry (DSC). The first type is non-freezing water the glass transition of which was detected in DSC. The second type corresponds to a kind of bound water, which was detected as a crystallization peak in the vicinity of 225K (Peak II). The peak appeared when the water content exceeded the critical amounts of non-freezing water. The enthalpy of the crystallization of Peak II increased gradually with increasing water content and then saturated at a certain amount of water. The third type is free water, the crystallization peak (Peak I) of which was found at the same temperature of that of pure water.
From the enthalpies of the crystallization of the above two peaks and the known weight of adsorbed water, it is possible to calculate the quantities of both free water (Peak I) and bound water (non-freezing+Peak II).抄録全体を表示PDF形式でダウンロード (402K) -
P. L. Privalov1979 年 6 巻 2 号 p. 56-65
発行日: 1979/05/25
公開日: 2009/09/07
ジャーナル フリーPDF形式でダウンロード (1350K) -
Ingemar Wadsö1979 年 6 巻 2 号 p. 66-77
発行日: 1979/05/25
公開日: 2009/09/07
ジャーナル フリーPDF形式でダウンロード (1907K) -
中村 隆雄1979 年 6 巻 2 号 p. 78-83
発行日: 1979/05/25
公開日: 2009/09/07
ジャーナル フリーSince the time of pioneer work of Lavoisier in 18th century, calorimetry have been one of the fundamental approaches in the study of bioenergetics. A review of the historical background of the calorimetric investigations in the field of bioenergetics was briefly described. Our recent construction of a twin-type microcalorimeter equipped with rapid response microthermistors and oxygen electrode, which allows simultaneous recording of heat production and oxygen consumption in a small volume (5cm3) of biochemical reaction systems, was introduced. Performance of the apparatus was tested with acid base neutralization reaction and some enzymatic reactions. Results from the measurements of the energy balance in the energy transducing reactions of rat liver mitochondria under various respiratory states were described with special interest on the mechanism and control of heat production in mitochondria by long chain unsaturated fatty acids.抄録全体を表示PDF形式でダウンロード (921K)
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