著者
横山 利夫・藤田 進太郎・武田 政宣
出版者
安全工学会
雑誌
安全工学 (ISSN:05704480)
巻号頁・発行日
vol.54, no.3, pp.169-176, 2015-06-15 (Released:2016-07-30)
参考文献数
17
被引用文献数
1

最近,自動車の自動運転に関する関心が急速に高まってきている.まずは自動運転に対する世の中の期待を紹介する.現在の道路交通条約および自動運転システムのレベル定義を説明した後,自動運転技術の実用化に向けた国際基準調和活動を概説する.その後,自動運転を実現するための主要な技術への取り組みを紹介し,最後に,自動運転実用化に向けた今後の展望を述べる.
著者
菊岡米山 著
出版者
池田屋源助
巻号頁・発行日
vol.[1], 1743
著者
荘司 隆一
出版者
公益社団法人 日本化学会
雑誌
化学と教育 (ISSN:03862151)
巻号頁・発行日
vol.63, no.12, pp.604-605, 2015-12-20 (Released:2017-06-16)
参考文献数
2
著者
阿部 新助 山本 真行 矢野 創 海老塚 昇 渡部 潤一 向井 正
出版者
日本惑星科学会
雑誌
日本惑星科学会秋季講演会予稿集
巻号頁・発行日
vol.2006, pp.107-107, 2006

流星や隕石が、地球大気突入によりどのような物理化学発光素過程を経ているのかは、未解明な点が多い。特に 炭素や水などのアブレーション過程を理解することは、生命起源物質の地球到来過程を解明する上でも重要である。2006年1月15日、NASAのスターダストは、直径80cmのカプセルを人工物では史上最速の12.9 km/sで地球大気に突入させた。我々は、この人工流星をNASA-DC8観測航空機から超高感度ハイビジョンカメラ(UV-II-HDTV)と500 grooves/mmの反射型対物分光器を用いて300-650nm波長領域の分光観測を行った。
著者
小端 静順
出版者
教育新潮社
雑誌
教育新潮
巻号頁・発行日
vol.3, no.1, pp.36-39, 1952-01
著者
福元 美和子
出版者
言語文化教育研究学会:ALCE
雑誌
言語文化教育研究 (ISSN:21889600)
巻号頁・発行日
vol.14, pp.162-173, 2016-12-30 (Released:2017-04-30)

明治期は近代日本語の歴史においてもっとも変化と躍動が起きた時期である。鎌倉室町期以降,さまざまなお国ことばが混在した話し言葉と書き言葉が大きく乖離した状態で受け継がれてきた日本の言葉を,全国で統一した話し言葉,さらに言文一致が求められるようになっていった。その先駆けとして森有礼は「日本語廃止論・英語採用論」を唱えたとされている。本稿では,後世に渡って批判の的とされてきたその原点ともいえるアメリカの言語学者ホイットニーとの書簡のやりとりの一部分を中心に,森有礼は本当に「日本語廃止論・英語採用論」を提唱したのか考察を試みる。
著者
白戸 満喜子
出版者
日本文学協会
雑誌
日本文学 (ISSN:03869903)
巻号頁・発行日
vol.46, no.10, pp.42-50, 1997

二代目松林伯円が口演した講談『安政三組盃』に登場する津の国屋お染は、漂流という偶然によってではあるが、日本開国以前の安政六年に女性で初めてハワイの地を踏んだとされ、このことは事実として語られている。しかし、お染が描かれたとされる浮世絵の版行年と伯円講述の『安政三組盃』の粗筋を照合すると、お染漂流の事実には矛盾が生じる。お染という女性は明治の寄席芸が創り上げた架空の存在であると推定されるのである。
著者
山下 良平 井戸 茉名美
出版者
日本地域学会
雑誌
地域学研究 (ISSN:02876256)
巻号頁・発行日
vol.46, no.2, pp.151-164, 2016 (Released:2016-11-19)
参考文献数
18
被引用文献数
1 2

In Japan, serious news that foreign companies have purchased watershed-protected forests has become widely known as a social issue. Consequently, many prefectures are now hurriedly designing Water Source Area Conservation Regulations (WSACR) in response to many concerned foresters who demand legal measures, not because of actual overexploitation but because of the potential risks. These WSACRs require all new owners to submit a plan for buying and using forested areas before completion of a land sale to supplement the revised forest act, which imposes a duty ex post facto to apply for a sale. In fact, no detailed report yet exists regarding the policymaking process of WSACR and situations for WSACR applications.Based on the experiences in Hokkaido with regard to the acquisition of water sources by foreign companies (specifically in the towns of Niseko and Kutchan), the current study seeks to examine the validity of the processes involved in the formulation of WSACR, as well as related to operational challenges for the circum-Hakusan region (comprising the prefectures of Fukui, Ishikawa, Toyama, and Gifu), which yet has no experience with such acquisitions. To approach this problem, data has been gathered through interviews with forest policy officials at the prefectural and municipal levels, with characteristics and procedures relating to WSACR then summarized in detail.Analysis revealed the following points. First, currently, there are no cases for the acquisition of forests in the circum-Hakusan region by foreign companies, and the role of WSACR is defined to be for fact-finding rather than licensing. Accordingly, plans by overseas companies attempting to acquire forests will not be rejected without reason. Second, while criticisms of excessive procedures and regulations have been previously raised in the implementation of conservation regulations, there are currently many who express the converse desire to further strengthen penalties. The reason for this is the desire to eliminate the anxiety that foreign companies will rampantly exploit Japan’s forests. Third, while forest land registries have for the most part yet to be fully clarified, there is a limit to what can be accomplished in this regard at the municipal level.A lesson for the future is to ensure that public opinion about a foreign company buying forested area does not become unnecessarily complicated because of the absence of credible information. It is impossible to regulate overexploitation of forests under the Water Source Area Conservation Regulations, which has been instituted for local governance. If local foresters desire harsher regulations, developing national laws will be the appropriate approach to fulfill their needs.JEL Classifications:Q18, Q23, Q58
著者
山下 良平
出版者
日本地域学会
雑誌
地域学研究 (ISSN:02876256)
巻号頁・発行日
vol.48, no.1, pp.117-131, 2018 (Released:2018-11-16)
参考文献数
17
被引用文献数
1 1

This paper focuses on the problems of foreign company acquisition of forests in the water source areas (WSAs) of Japan. We conducted a verification of the hypothesis “Will clarification of land registers and awakening interest in the promotion of collaboration between government and forestry workers lead to the maintenance of stable WSAs ?” Specifically, individual interest in the hypothetical policy scenario for clarification of land registers and strengthening of the connection between government and forestry workers was used as a proxy for the willingness to pay (WTP) policy implementation costs. Moreover, this standard was evaluated through a comparison among regions, taking forest acquisition as the basis. Land ownership of the many forest lands in Japan, including WSAs, is unclear, and the reality is that the work of ascertaining this requires the understanding and cooperation of not only prefectures but also municipalities and local forestry workers. Based on this, we constructed two scenarios. The first scenario was the implementation of “a policy to clarify the unclear forest ownership structure for the conservation of WSAs.” The second scenario consisted of the incorporation of the concept of co-management in forest management and implementation of “a policy related to business development to promote collaboration between government and local forestry workers.” These two scenarios were not meant to function as direct prevention of forest acquisition but rather as a contribution to sound maintenance and management of forest areas extending from the WSAs to mountains near villages. Further, as a form of resident participation in the management of WSAs, we measured and compared the WTP for the costs required for implementing the policy. Data collection was conducted from 2016 to 2017 through internet research. The number of samples of residents in regions with a history of forest acquisition was 1,513, and in regions with no such history, the number was 2,209. The WTP was estimated using the Contingent Valuation Method (CVM), with initial costs of 300 (yen/year per household), 1,000 (yen/year per household), 3,000 (yen/year or household), and 10,000 (yen/year or household). A comparison of the WTP amounts for the two scenarios showed that the WTP of residents of regions with a history of forest acquisition for scenario one was 876 yen, and for regions with no history, the WTP was 776 yen. Similarly, the WTP amounts for residents of regions with a history of forest acquisition for scenario two was 1,851 yen, and for regions with no history, WTP was 1,371 yen. With respect to factors that influenced the WTP, the influence of regional differences was partial and differences in the recognition of individuals had a stronger influence on the WTP than a comparison of regional differences and differences in the recognition of individuals. This study suggests that the estimated WTP is extremely beneficial for the system design of forest policies implemented at the national level or the municipal level.JEL Classification:Q10, Q15, R52
著者
角竹 功次 吉岡 隆知 北島 佳代子 五十嵐 勝
出版者
一般社団法人 日本歯内療法学会
雑誌
日本歯内療法学会雑誌 (ISSN:13478672)
巻号頁・発行日
vol.36, no.3, pp.126-129, 2015 (Released:2017-09-30)
参考文献数
20

Abstract : We experienced a case of accidental ingestion of a root canal instrument. At first, surgical extraction was suggested by a medical doctor, however, the therapeutic strategy was changed upon presentation of a previously published paper. After ingesting fibrous foods, the patient excreted the instrument naturally on the seventh day. The maintenance of guidelines on accidental ingestion would enable treatment policies to be shared with other medical departments.
著者
中込 重明
出版者
法政大学国文学会
雑誌
日本文学誌要 (ISSN:02877872)
巻号頁・発行日
no.63, pp.38-44, 2001-03