著者

野依良治

雑誌

化学の領域

巻号頁・発行日

vol.89, 1970

被引用文献数

1

著者

山本 尚 野崎 一

出版者

南江堂

雑誌

化学の領域 増刊 (ISSN:03686299)

巻号頁・発行日

no.117, pp.p19-43, 1977-09

著者

野依 良治 佐藤 恒夫

出版者

南江堂

雑誌

化学の領域 増刊 (ISSN:03686299)

巻号頁・発行日

no.128, pp.p169-184, 1980-05

著者

野依 良治

出版者

日本化学会

雑誌

化学と工業 (ISSN:00227684)

巻号頁・発行日

vol.35, no.6, pp.p378-382, 1982-06

著者

野依 良治 高谷 秀正

出版者

化学同人

雑誌

化学 (ISSN:04511964)

巻号頁・発行日

vol.43, no.3, pp.p146-153, 1988-03

著者

平野 直人

出版者

公益社団法人 東京地学協会

雑誌

地学雑誌 (ISSN:0022135X)

巻号頁・発行日

vol.126, no.2, pp.195-206, 2017-04-25 (Released:2017-06-12)

参考文献数

55

被引用文献数

2 5

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Geoscientists, who previously had limited direct knowledge of the petrological/geochemical mantle below oceanic regions, were largely restricted to areas near mid-ocean ridges, back-arc spreading centers, and hotspots. Petit-spot lavas and xenoliths provide direct information on the asthenosphere and the lithosphere of subducting plates because the magma that erupts from petit-spot volcanoes originates from the asthenosphere and ascends along the concavely flexed zone prior to the outer-rise along the trench. Such volcanoes have been reported at subduction zones worldwide (e.g., the Japan, Chile, Java, and Tonga trenches). The isotopic composition of petit-spot lavas indicates a heterogeneous asthenosphere, and geobarometric analyses of xenoliths show a higher geothermal gradient in the lithosphere than that predicted previously by the GDH1 model, meaning that conventional theory about the subducting lithosphere needs to be revised in the light of recently obtained petit-spot data. Melt fractionation is thought to occur in the middle lithosphere, given that bulk compositions show fractionation trends in the absence of phenocrysts, in spite of raising lherzolitic xenoliths from ∼45 km depth. The most important indicators of petit-spot input to the lithosphere are high levels of carbon dioxide (CO2) in petit-spot magma, which might explain the low seismic velocity and high electrical conductivity of the oceanic asthenosphere just below the subducting oceanic plate. Because carbon-rich melt ascends through the lithosphere to the seafloor as a petit-spot, it is likely to metasomatize the lithosphere just prior to its subduction.

著者

鳥居清信 画

出版者

米山堂

巻号頁・発行日

vol.下, 1922

著者

黄 [jing][ling]

出版者

龍谷大学

雑誌

龍谷ビジネスレビュー : 龍谷大学大学院経営学研究科紀要 (ISSN:13454560)

巻号頁・発行日

vol.14, pp.73-74, 2013-06-28

著者

クロパトキン 著

出版者

偕行社

巻号頁・発行日

vol.其1,

著者

土橋 豊

出版者

甲子園短期大学

雑誌

甲子園短期大学紀要 (ISSN:0912506X)

巻号頁・発行日

vol.31, pp.17-24, 2013-03-25

出版者

写

巻号頁・発行日

vol.[125] (第四十中) (火之部),

著者

Ihara Nobuhiro

出版者

神戸大学

雑誌

Kobe University law review (ISSN:00756423)

巻号頁・発行日

vol.47, pp.51-78, 2013

著者

井原 伸浩

出版者

神戸大学

雑誌

神戸法學雜誌 (ISSN:04522400)

巻号頁・発行日

vol.63, no.1, pp.141-169, 2013-06

著者

井原 伸浩

出版者

神戸大学

雑誌

神戸法學雜誌 (ISSN:04522400)

巻号頁・発行日

vol.62, no.3, pp.99-128, 2013-03

著者

Yulian Bandi Hermawan 奥田 延幸

出版者

香川大学

雑誌

香川大学農学部学術報告 (ISSN:03685128)

巻号頁・発行日

vol.54, pp.35-40, 2002-03-29

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本研究では, 1998年にインドネシアBengkulu地域の3地区におけるラフレシア(Rafflesia arnoldii R.Br.)の開花の現状を調査した.1次データとしてアンケート調査を行い, 2次データは政府機関と研究論文から収集した.この結果, Bengkulu地域におけるラフレシアの分布地は低地3カ所と高地5カ所の合計8カ所であることが明らかになった.また, その分布地の保護のために, 宿主であるLiana植物体への標識とその周囲のフェンス取り付け, および宿主の現地への再導入が重要であると考えられた.ラフレシア分布地の人為的破壊は, 地域社会の人口増加, 地域住民への教育並びに民族的背景が要因となっていると思われた.地方自治体からの情報公開はラフレシアの保護に貢献し, さらに道路や電力供給などの社会資本整備によってラフレシアが観光客の誘致に有効であると考えられた.

著者

井原 伸浩

出版者

一般財団法人 日本国際政治学会

雑誌

国際政治 (ISSN:04542215)

巻号頁・発行日

vol.2011, no.164, pp.164_115-128, 2011

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Many previous studies on the establishment of the Association of Southeast Asian Nations (ASEAN) argue that regional countries tried to draw Indonesia into regional affairs in a friendly and constructive manner, since Indonesia had been regarded as a potential great power in Southeast Asia. In reality, however, Indonesia took the initiative in the process of forming ASEAN, and thus other member countries changed their opinions regarding Indonesia's participation in regional cooperation. They began by viewing such participation as negative. The Indonesian government, especially its army, believed that it had a natural right to play a leadership role in regional affairs due to Indonesia's potential power, and regarded the regional cooperative body as one of the vehicles to expand Indonesia's influence. Other regional countries, especially Malaysia, had vague but realistic concerns regarding Indonesia's initiative. They were concerned that Indonesia would play a dominant role in regional cooperation and, in the longer term, utilise the forthcoming regional organisation as a diplomatic tool to gain regional hegemony. There has not been adequate discussion of the way in which Indonesia's initiative in the process of establishing ASEAN caused concerns among the members about Indonesia's motives and preferences. Moreover, even the researches that refer to ASEAN countries' mistrust of Indonesia do not clarify the impact of these concerns on the process of establishing the association and, in particular, how the mistrust was mitigated during the negotiation process.<br>This research hypothesises that as a means of gaining sufficient trust to achieve regional cooperation, Indonesia sought to reassure the other states of its intentions by forming an institution in which unilateral acts by Indonesia were constrained. More specifically, Indonesia sought to reassure other future members of ASEAN by rejecting cooperation which would cause tensions with communist countries who regarded the new organization as anti-communist and a pro-Western defence alliance. Moreover, the proposed organization was reassuring to other future members of ASEAN because it was also structurally difficult for Indonesia to gain a dominant or leading role in it. Moreover, through regional cooperation, Indonesia refrained from using its power to inflame tensions among other countries, blocs and specific peoples inside and outside the region. Further, Indonesia's delegation to the founding meeting of ASEAN in August 1967 told other delegates that Indonesia would allow the maintenance of foreign bases in the region, even after the advent of the new organization. This was welcomed by other members not only because their defence depended on external powers such as the US and UK but also because this military presence would likely keep the expansion of Indonesia's regional influence in check.

著者

ラフレシア

出版者

一般財団法人 林業経済研究所

雑誌

林業経済 (ISSN:03888614)

巻号頁・発行日

vol.21, no.3, pp.i, 1968

著者

黒田 満 倉賀野 哲造 久保 哲夫

出版者

一般社団法人情報処理学会

雑誌

情報処理学会論文誌 (ISSN:18827764)

巻号頁・発行日

vol.39, no.3, pp.602-609, 1998-03-15

参考文献数

14

被引用文献数

3

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曲率半径が弧長の折れ線グラフとなる滑らかな対数らせんスプライン補間曲線の導出法を提案している.曲線はスパン曲線長,与点での曲率半径と接線を未知数とする連立方程式を,パラメトリック3次のC2補間曲線からの良い初期値を使ってニュートン・ラプソン法で解いて導く.提案手法は計算機援用の形状設計に有用な次の特長を持っている.(1)弧長,接線,曲率半径といって,設計者の直観になじむ幾何情報だけから形状を設計・制御できる.(2)縮閉線がまた対数らせんスプライン曲線となるし,オフセット曲線と伸開線も対数らせんスプライン曲線で精度良く近似できるので取り扱いやすい.(3)必要なら,導出曲線を許容誤差範囲内で有理多項式近似できる.さらに,クロソイド弧の挿入による変曲点の導入や1スパンを複数曲線分化して表現力を強化する拡張法についても簡単に述べている.This paper presents a method for constructing an interpolating smooth curve composed of logarithmic spirals,whose radius of curvature is piecewise linear with respect to arclength.Using good initial values from the conventional cubic C2 interpolant,the curve is obtained by the Newton-Raphson method from a system of equations whose unkowns are arclengths of spans,tangents and curvature radii at data points.The method has the following three features for computer aided geometric design.(1)It specifies and controls shape of curve by intrinsic geometric quantities familiar with designers,such as arclength,tangent and radius curvature.(2)Its evolute is also expressed by logarithmic spiral splinecurve,and its offset curve and involute are approximated very well by logarithmic spiral spline curve and hence these associate curves are easy to deal with.(3)The derived cruve might be approximated within a tolerance by conventional rational polynomials,if necessary.Extensions of the method are described for introducing an inflection point by use of a clothoid segment and for making the curve more flexible by multi segments per span.

出版者

杉田勘兵衛

巻号頁・発行日

vol.[2], 1640

著者

横井 篤文

出版者

公益財団法人 日本学術協力財団

雑誌

学術の動向 (ISSN:13423363)

巻号頁・発行日

vol.23, no.8, pp.8_27-8_31, 2018-08-01 (Released:2018-12-14)

参考文献数

14