著者
戸塚 誠司 小林 一郎
出版者
Japan Society of Civil Engineers
雑誌
土木史研究 (ISSN:09167293)
巻号頁・発行日
vol.17, pp.25-36, 1997-06-05 (Released:2010-06-15)
参考文献数
39

Kato Kiyomasa became the Load of Higo (northern half of Kumamoto prefecture) in 1588 and the development of Kumamoto city began from that period. Choroku bridge was constructed under the direction of Kato Kiyomasa and it is believed to be the first bridge over the Shirakawa river which runs across the Kumamoto city from east to west. Because of swift-moving waters of the Shirakawa during the rainy season, this wooden bridge was demolished and reconstructed repeatedly. From the second half of Meiji era, people wished eagerly for a strong steel bridge against the flood and the former Choroku bridge was realized in 1927 as the largest steel tied-arch of Japan.This paper describes the design concept of the former Choroku bridge. The contextual meaning of the bridge site is discussed based on the research of documents and local news papers about the successive Choroku bridges and citezen's activities for the realization of the steel bridge. It is concluded that the understanding of regional sociological history as well as technological history are very important criteria for the evaluation for civil engineering structures
著者
伊能 寛 深尾 隆則 戸塚 誠司 岡藤 勇希
出版者
公益社団法人 自動車技術会
雑誌
自動車技術会論文集 (ISSN:02878321)
巻号頁・発行日
vol.46, no.2, pp.443-448, 2015 (Released:2018-01-25)
参考文献数
5

オプティカル・フローを利用したライントレース方略について,モデリングおよび数値シミュレーションを進めてきた結果,オプティカル・フローは自己運動知覚に有用な変数である可能性が示された.本研究では非線形制御手法を適用し,オプティカル・フロー・モデルに基づいた操舵制御システムについて開発したので報告する.
著者
戸塚 誠司 小林 一郎
出版者
Japan Society of Civil Engineers
雑誌
土木史研究 (ISSN:09167293)
巻号頁・発行日
vol.18, pp.1-16, 1998-05-01 (Released:2010-06-15)
参考文献数
38

Many bridges have been constructed over the Shirakawa river which runs across the Kumamoto city from east to west. Because of swift-moving waters of the Shirakawa river during the rainy seasons, these bridges were demolished and reconstructed repeatedly. The writers investigated the development of these bridges from the view point of flood history. This paper describes the design concept and the process of its deveropment in bridge construction over the Shirakawa river. It is concluded that the understanding of disastrous history as well as technological, regional and sociological history is very important criteria for the evaluation for civil engineering structures.