酸性粘液多糖類の組織化学的研究。二, 三の新しい方法および組織切片中における鑑別について

京都大学0048新制・論文博士医学博士論医博第161号新制||医||64(附属図書館)775(主査)教授 岡本 耕造, 教授 早石 修, 教授 翠川 修学位規則第5条第2項該当Kyoto UniversityDA

Strengthening of clay aerogel by use of additives

The effect of soluble and insoluble additives on the compressive strength of the clay aerogel having a sponge-like texture was studied by measuring the compressive strength of composite aerogels prepared by freeze-drying aqueous sols of the desired composition. A linear relationship between the logarithm of compressive strengths and apparent densities of the composite aerogels was found. The order of the strengthening effect of the additives was : humic acid > water glass > rock wool ~ sericite > glass fibers > kaolinite. The humic acid imparted an increase in compressive strength of 10 to 20 times that of the control. The results suggest that the water-soluble additives have a greater reinforcement effect than insoluble components. SEM observations and pore size meas¬ urements support the conclusion that the effectiveness of an additive in enhancing the compressive strength of clay aerogels is related to the extent to which the additive contributes to a decrease in the pore size of the aerogel.Fujita Taketoshi, Sugiyama Hiromishi, Adachi Masayoshi, Nakazawa Hiromoto. Strengthening of clay aerogel by use of additives. In: Proceedings of the 9th international Clay Conference, Strasbourg, 1989. Vol V : Industrial applications of clays. Analytical techniques and teaching of clay mineralogy. Strasbourg : Institut de Géologie – Université Louis-Pasteur, 1990. pp. 53-61. (Sciences Géologiques. Mémoire, 89

Strengthening of clay aerogel by use of additives

The effect of soluble and insoluble additives on the compressive strength of the clay aerogel having a sponge-like texture was studied by measuring the compressive strength of composite aerogels prepared by freeze-drying aqueous sols of the desired composition. A linear relationship between the logarithm of compressive strengths and apparent densities of the composite aerogels was found. The order of the strengthening effect of the additives was : humic acid > water glass > rock wool ~ sericite > glass fibers > kaolinite. The humic acid imparted an increase in compressive strength of 10 to 20 times that of the control. The results suggest that the water-soluble additives have a greater reinforcement effect than insoluble components. SEM observations and pore size meas¬ urements support the conclusion that the effectiveness of an additive in enhancing the compressive strength of clay aerogels is related to the extent to which the additive contributes to a decrease in the pore size of the aerogel.Fujita Taketoshi, Sugiyama Hiromishi, Adachi Masayoshi, Nakazawa Hiromoto. Strengthening of clay aerogel by use of additives. In: Proceedings of the 9th international Clay Conference, Strasbourg, 1989. Vol V : Industrial applications of clays. Analytical techniques and teaching of clay mineralogy. Strasbourg : Institut de Géologie – Université Louis-Pasteur, 1990. pp. 53-61. (Sciences Géologiques. Mémoire, 89

孤立性後腹膜神経線維腫の1例

後腹膜に原発し, vonRecklinghausen氏病の徴候のない孤立性神経線維腫の1例を報告する.診断上, もう一つの神経鞘由来の神経鞘腫との鑑別が問題で, 腫瘍の組織化学染色および免疫組織化学染色が孤立性神経線維腫の診断に有用であった,A solitary neurofibroma arising in the retroperitoneal space without any other stagma of von Recklinghausen's disease is reported. Confusion with another nerve sheath tumor, a schwannoma is a diagnostic pitfall. Histochemical and immunohistochemical stainings of the tumor are useful for the diagnosis of solitary neurofibroma