著者
上野 彌
出版者
公益社団法人 高分子学会
雑誌
高分子 (ISSN:04541138)
巻号頁・発行日
vol.15, no.11, pp.970-978, 1966-10-20 (Released:2011-09-21)
参考文献数
37
著者
渡邊 寛
出版者
日本心理学会
雑誌
心理学研究 (ISSN:00215236)
巻号頁・発行日
vol.88, no.3, pp.251-259, 2017-08
著者
野間口 大 中切 拓 藤田 喜久雄
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日
pp.17-00122, (Released:2017-09-19)
参考文献数
22
被引用文献数
4

Generation of new concepts in product design process serves as driving force of innovation. While many methods have been proposed for supporting design concept generation, it has rarely been supported in a systematic way, because its process is done in designer's implicit thought, and therefore, it is difficult to explicitly formalize the process. This paper proposes a model of designers' thinking process in concept generation called ECF cycle. It consists of three steps, i.e., (1) Externalization: the step for representing design concepts with drawings and language, (2) Classification: the step for classifying concepts with function trees, and (3) Finding voids: the step for finding potentials of new concepts called void, which is a defect of the classification. Then, this research builds a new method of concept generation incorporating the theory of solving inventive problems (TRIZ). The method is based on a quick reference table of TRIZ principles, which helps designers to create a new concept corresponding to a void found by ECF cycle. A case study of concept generation of new running shoes is demonstrated in order to verify the ability of the proposed method.
著者
金城 和俊 島田 晴加
出版者
一般社団法人 日本粘土学会
雑誌
粘土科学
巻号頁・発行日
vol.56, no.1, pp.1-7, 2017

<p>Minami-daito island, which is situated in a sub-tropical area, contains red-yellow soil. Recently, grayish white-colored soil was discovered around dead roots in the subsoil on the island. In general, grayish white-colored soil is formed via iron dissolution by a low molecular-weight aliphatic carboxylic acid solution (LACA) in a cold setting; however, there were few studies regarding the formation of white-colored soil in sub-tropical areas. The objective of this study is to elucidate the mechanism of grayish white-colored soil formation in the sub-tropical setting of Minami-daito island. Soil samples (horizons Ap<sub>1</sub>, Ap<sub>2</sub>, B<sub>1</sub>, and B<sub>2</sub>) were obtained from a pumpkin field on Minami-daito island. Grayish white-colored soil was discovered around dead roots in the B<sub>2</sub> horizon, which was also collected. From X-ray analysis, the clay minerals were kaolin minerals, mica, vermiculite, vermiculite–chlorite integrate, and goethite in the A and B horizons; however, goethite was not present in the white-colored soil. This result indicates that the grayish white-colored soil was formed by the dissolution of goethite around dead roots. It is likely that LACA is necessary for the dissolution of goethite in soil. To prove this hypothesis, a leaching test was conducted. Oxalic acid, formic acid, and acetic acid in LACA and samples of the B<sub>2</sub> soil horizon were used for the leaching test. Compared with H<sub>2</sub>O treatment, Al and Fe were dissolved using LACA treatment and oxalic acid solution treatment. From X-ray analysis, it was observed that the gibbsite and goethite peaks obtained using LACA treatment were smaller than that using H<sub>2</sub>O treatment. In particular, the goethite peak disappeared after oxalic acid treatment. Previous studies have demonstrated that oxalic acid has a high ability to dissolve goethite. It is concluded that the grayish white-colored soil on Minami-daito island was formed via the dissolution of goethite by oxalic acid from plant dead roots.</p>
著者
坂本 勝成
出版者
立正大学
雑誌
立正大学文学部論叢 (ISSN:0485215X)
巻号頁・発行日
vol.58, pp.25-73, 1977-07-05
著者
久美薫著
出版者
鳥影社
巻号頁・発行日
2008
著者
清朱桓輯
巻号頁・発行日
vol.[19], 1807
出版者
巻号頁・発行日
vol.[10],
著者
兼本 浩祐 川崎 淳 武内 重二 河合 逸雄
出版者
一般社団法人 日本てんかん学会
雑誌
てんかん研究 (ISSN:09120890)
巻号頁・発行日
vol.13, no.3, pp.202-210, 1995-10-31 (Released:2011-01-25)
参考文献数
19
被引用文献数
2 4

難治側頭葉てんかんのため本院で手術を受け1年以上経過した22例の患者について術後の精神症状を検討した。その結果, (1) 術前に精神病状態を体験したことのない患者で術後新規に精神病状態を体験した患者が3例あり, いずれも右切除例であった, (2) 際立った精神症状をきたした患者では, 実体的意識性, 夢様状態を前兆とするものが比較的多かった, (3) うつ状態は術後3カ月以内には出現し, 時には自殺企図を伴うほど重症になった, (4) 術前に敵意・攻撃性が目立った患者は, 術後には改善がみられた, (5) 精神症状の大部分は1年以内には消失したが, 軽症化したものの2年以上遷延した例が2例みられた。以上の結果を文献例と比較し, 術後精神病を心因論だけからは説明することが難しいことを指摘するとともに, 側頭葉てんかんに対する外科手術後に, 神経学的, 神経心理学的評価だけでなく, 精神科的評価が不可欠であることを考察で論じた。