著者
常盤 嘉一 倉田 彰 宮坂 佳男 橘 滋国 矢田 賢三 大和田 隆 菅 信一 向野 和雄 高木 宏
出版者
日本脳神経外科コングレス
雑誌
脳神経外科ジャーナル (ISSN:0917950X)
巻号頁・発行日
vol.2, no.2, pp.128-132, 1993
被引用文献数
2

視野障害をきたす特徴的な水頭症の所見を得るために,後頭蓋窩腫瘍にて閉塞性水頭症をきたした28例の画像を検討した.視野障害群(n=6)と視野正常群(n=22)で,計測を含めたCTの検討を行った.第3脳室幅の著明な拡張と,同脳室の著明な下方進展が視野障害をきたす特徴的な所見であった.すなわち,両群間で,側脳室の拡大の程度に有意差はなかった.視野障害群では第3脳室幅(平均12 mm)が有意に嵩値を示した.また第3脳室の著明な下万伸展(トルコ鞍内への陥入)例が視野障害群(4/6例)で有意に多かった. MRIは2例中1例で視交叉と第3脳室および内頚動脈との関係を明瞭に描出した.今後,視野障害の責任病変の把握に有用となることが期待された.
著者
遠藤 久芳 菅 信 大松 重雄 山川 賢次 菅 進 渡辺 健次
出版者
運輸省船舶技術研究所
雑誌
船舶技術研究所報告 (ISSN:0495775X)
巻号頁・発行日
vol.19, no.4, pp.257-283, 1982

The study had been started from the review^<19)> of "Plan of Ocean Raft System for Hydrogen Economy"^<1)> which was proposed by Ohta^<1)> and Veziroglu in 1977. The project was for hydrogen production with solar energy on a huge raft floating on the South Pacific Ocean and for transport of liquefied hydrogen.Since their raft system was found to have some fatal defects in hydrodynamical and structural characteristics, an alternative plan of new raft system was proposed in which those defects are improved.In these papers (three reports will continue after this), authors carried out the feasibility study on the total plan only from technical view point. Economical view point was excluded here.In the first report, a new raft system is proposed as an alternative one. After natural condition such as wave, current and wind of the concerned area (8°S, 138°W) was surveyed, environmental force was estimated and the behavior of the raft was investigated both analytically and experimentally. Detail design of each structural members was conducted under consideration of the structural response for the load mentioned.The new raft system proved to be efficient for collecting solar energy and to be superior in hydrodynamical and structural characteristics.

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著者
小菅 信子
出版者
上智大学
雑誌
ソフィア (ISSN:04896432)
巻号頁・発行日
vol.56, no.2, pp.262-269, 2007