著者

赤木 正人 羽二生 篤

出版者

日本音響学会

雑誌

日本音響学会論文集 (ISSN:18807658)

巻号頁・発行日

vol.2011, pp.1725-1728, 2011-03-02

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機械による音声認識について,この数十年来数多くの手法が提案されてきた.しかし,まだ十分な性能は得られていない.本講演では,現状の音声認識装置ではこんなこと(もちろん人にとっては簡単なこと)は出来ないだろう,というものをならべたて,改めて人による音声知覚と機械による音声認識を対比してみることで,今後期待される音声認識のメカニズムを探る.

著者

永田 和宏 羽二生 篤 鈴木 卓夫

出版者

一般社団法人 日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.87, no.10, pp.665-672, 2001 (Released:2009-06-19)

参考文献数

15

被引用文献数

2

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The Tatara is the traditional iron-and steelmaking process in Japan. The box type furnace is about 1 m width, 3 m length and 1.2 m height. The process produces steel bloom and pig iron from iron sand and charcoal. The furnace is built on the charcoal bed in a big underground construction which is separated into upper and lower parts by a thick clay layer, "Kobune Kawara". The lower part is a drainage. The upper part has a charcoal bed, "Hondoko", with twin caves, "Kobune", on the both sides. The "Kobune" keeps its temperature lower than 41°C and humidity higher than 89%, that is, 4.8×10-2kg·m-3 in terms of water vapor concentration, during "Tatara" operations. The heat flow and temperature distribution around the furnace during operation was numerically simulated. The water vapor in "Hondoko", hearth and "Doi" flows to "Kobune" according to heat flow and disperses to the surroundings. Further the historical development of underground construction is discussed.