著者
島根 大輔 古川 茂樹 山崎 博司
出版者
一般社団法人 日本エネルギー学会
雑誌
日本エネルギー学会大会講演要旨集 (ISSN:24238317)
巻号頁・発行日
vol.19, pp.294-295, 2010

Experimental study has been conducted on the occurrence of boilover processes in the pool fire. The flame and water temperatures and optical energy were measured during the pool burning of hydrocarbon with high boiling point. n-Hexadacane layer with emulsion layer were composed on the water sublayer in the cylindrical container. Attention was mainly paid for temperature conditions at the occurrences of boilover in the pool burning processes. It is concluded that the time for extinguishment become to shorten by existing of emulsion layer, in which boilover processes were largely changes. Occurrence conditions of boilover were also discussed by time histories of flame, emulsion layer and water sublayer with optical energy from pool fire.
著者
諸頭 三郎 山崎 博司 内藤 泰 眞鍋 朋子 山本 輪子 藤原 敬三 篠原 尚吾
出版者
一般社団法人 日本聴覚医学会
雑誌
AUDIOLOGY JAPAN (ISSN:03038106)
巻号頁・発行日
vol.55, no.1, pp.68-76, 2012 (Released:2012-03-28)
参考文献数
23

当科で人工内耳手術を行った小児内耳奇形例11例をSennaroglu分類による奇形の型と人工内耳使用マップ, 術前聴力と術後人工内耳装用域値, 術前後の語音聴取や言語発達の成績, 発話明瞭度との関連を評価し, この分類法の臨床的妥当性について検討した。内耳奇形の内訳は2例がcommon cavity (CC), 2例がincomplete partition type I (IP-I), 5例がincomplete partition type II (IP-II), 1例がcochleovestibular hypoplasiaとcochlear nerve deficiencyの合併例 (CVH/CND), 1例が内耳道狭窄とCNDの合併例であった。11例中8例において人工内耳で音感を得るのに通常より大きな電荷量を必要とした。嚢胞状の蝸牛を呈するCCとIP-Iの4例中2例は術後語音聴取成績, 言語発達は良好であったが2例は不良でばらつきがあった。IP-II5例はすべての検討項目で術後成績が良好で言語メディアに聴覚-音声を使用していた。CND合併例2例は術後も語音聴取や言語発達の成績が不良で視覚言語の併用を必要とした。IP-IとIP-IIを峻別するSennaroglu分類とMRIによる蝸牛神経の評価の臨床的意義が確認された。
著者
田中 創 山崎 博司 寺地 誠喜 瀬川 大資 角田 敏一
出版者
一般社団法人日本機械学会
雑誌
日本機械学會論文集. B編 (ISSN:03875016)
巻号頁・発行日
vol.71, no.702, pp.690-695, 2005-02-25
参考文献数
10
被引用文献数
3

An experimental study has been carried out to reveal the statistical characteristics for the onset of micro-explosion of an emulsion droplet burning on a hot surface. Detail measurements of the waiting time for the onset of micro-explosion are made for various properties of base fuel, water contents and surface temperatures. The Weibull analysis is applied to obtain the distribution function of the waiting time for the onset of micro-explosion and to derive the empirical formula for the rate of micro-explosion as a function of water volume and emulsion temperature. The base fuels employed are n-decane, n-dodecane, n-tetradecane and n-hexadecane. The results show that the waiting time is correlated well with the Weibull distribution of the wear-out type. The mean waiting time decreases with an increase in the boiling point of base fuel, water content and surface temperature. An empirical formula is proposed for the rate of micro-explosion as a function of water volume and emulsion temperature.