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14篇 您的检索式:作者名="S.YAMAMOTO"
    题名 作者 年代 出处 被引量
1Why primordial continents were recycled to the deep:Role of subduction erosion显示文摘Geological observations indicate that there are only a few rocks of Archean Earth and no Hadean rocks on the surface of the present-day Earth.From these facts,many scientists believe that the primordial continents never existed during Hadean Earth,and the continental volume has kept increasing.On the other hand,recent studies reported the importance of the primordial continents on the origin of life,implying their existence.In this paper,we discussed the possible process that could explain the loss of the primordial continents with the assumption that they existed in the Hadean.Although depending on the timing of the initiation of plate tectonics and its convection style,subduction erosion,which is observed on the present-day Earth,might have carried the primordial continents into the deep mantle.S.Azuma S.Yamamoto H.Ichikawa S.Maruyama 2017Geoscience Frontiers2017,8,2:4
2Changes in Soil Physicochemical Properties Following Land Use Change from Paddy Fields to Greenhouse and Upland Fields in the Southeastern Basin of Dianchi Lake,Yunnan Province,China显示文摘Paddy fields in the southeastern basin of Dianchi Lake have rapidly changed to greenhouses since 1999. A total of 61 surface soil samples, including 43 greenhouse soils, 12 upland soils, and 6 paddy soils, were collected from a flat lowland area mainly used for agricultural production fields in the southeastern basin of Dianchi Lake. Analyses of the soil samples indicated that the greenhouse soils were characterized by a lower organic matter content, lower pH, and higher soluble nutrients than the paddy soils in the area. The lower organic matter content of the greenhouse soils was ascribed to environmental or management factors rather than the clay content of the soil. Accumulation of soluble nutrients, especially inorganic N, was due to over-application of fertilizers, which also caused soil acidification. The average amount of readily available N, P, and K accumulated in the greenhouse soils was estimated to be equal to or higher than the annual input of these nutrients as a fertilizer, indicating that a reduction in fertilizer application was possible and recommended. In contrast, a very low available Si content was observed in the paddy soils, suggesting the need for Si application for rice production.N.MORITSUKA T.NISHIKAWA S.YAMAMOTO N.MATSUI H.INOUE LI Kun-Zhi T.INAMURA 2013Pedosphere2013,23,2:4
3MHD Instabilities and Their Effects on Plasma Confinement in Large Helical Device Plasmas with Intense Neutral Beam Injection显示文摘MHD stability of the Large Helical Device (LHD) plasmas produced with intense neutral beam injection is experimentally studied. When the steep pressure gradient near the edge is produced through L-H transition or linear density ramp experiment, interchange-like MHD modes whose rational surface is located very close to the last closed flux surface are strongly excited in a certain discharge condition and affect the plasma transport appreciably. In NBI-heated plasmas produced at low toroidal field, various Alfvén eigenmodes are often excited. Bursting toroidal Alfvén egenmodes excited by the presence of energetic ions induce appreciable amount of energetic ion loss, but also trigger the formation of internal and edge transport barriers.K.Toi S.Ohdachi S.Yamamoto S.Sakakibara K.Y.Watanabe N.Nakajima X.Ding J.Li S.Morita K.Narihara K.Tanaka T.Tokuzawa H.Yamada Q.Yang 2004Plasma Science and Technology2004,6,3:3
4New composite charged reverse osmosis membrane显示文摘Ikeda K Nakano T Ito H Kubota T S.Yamamoto 0,,02:1
5Food‐dependent exercise‐induced anaphylaxis: a report of two cases and determination of wheat‐γ‐gliadin as the presumptive allergen显示文摘E.Morita Y.Yamamura S.Mihara Y.Kameyoshi S.Yamamoto 2008British Journal of Dermatology2008,,5:1
6Plasma Confinement Characteristics in Heliotron J——Spontaneous Change of Plasma Confinement State显示文摘Spontaneous transition of the plasma confinement mode was observed in the helicalaxis heliotron device 'Heliotron J' for three different plasma heating schemes, i.e. ECHonly, NBI-only and the combination of ECH and NBI. The transition seems to occur above a certain critical density. In addition to the confinement transition, a spontaneous shift of the hitting position of the divertor plasma flux on the wall was observed. This shift could be related with the change of the edge field topology caused by non-inductive toroidal currents.T.Mizuuchi H.Okada K.Nagasaki S.Kobayashi S.Yamamoto F.Sano K.Kondo K.Hanatani M.Nakasuga Y.Nakamura Y.Suzuki Y.Manabe H.Shidara H.Kawazome M.Kaneko Y.Nishioka Y.Ohno T.Takamiya H.Yukimoto Y.Fukagawa Y.Morita S.Nakazawa S.Nishio K.Takahashi S.Tuboi M.Yamada K.Ohashi Y.Ijiri T.Senju K.Yaguchi K.Sakamoto K.Tohshi M.Shibano T.Obiki 2004Plasma Science and Technology2004,6,4:1
7Structural relaxa-tion and optical properties in transparent nanocrystallineβ-quartz glass-ceramic显示文摘A.Sakamoto F.Sato S.Yamamoto 0,,:1
8Observation of Edge Plasma Fluctuations with a Fast Camera in Heliotron J显示文摘A fast video camera is verified to be a powerful tool for observation of filaments/blobs near the last closed flux surface (LCFS).In order to extract the fluctuation component from the raw data of the fast camera,a pre-processing technique,sliding time window averaging subtraction (STWAS) has been developed to remove the background of slowly varying emission from the bulk plasma.By using this pre-processing technique,the fast camera data are analyzed.A method to identify the filaments in the pre-processed image is also discussed.臧临阁 M.TAKEUCHI N.NISHINO T.MIZUUCHI S.OHSHIMA K.KASAJIMA M.SHA K.MUKAI H.Y.LEE K.NAGASAKI H.OKADA T.MINAMI S.KOBAYASHI S.YAMAMOTO K.HANATANI Y.NAKAMURA S.KONOSHIMA F.SANO 2013Plasma Science and Technology2013,15,3:0
9可用于地震早期预警的家用地震仪显示文摘日本气象厅(JMA)已开始推出一项地震早期预警(EEW)的实际服务,预计在不久的未来,将非常密集地布设安装信号接收装置。地震早期预警的接收/预警装置配有中央处理器和内存,并通过互联网进行连接。再加上一个便宜的地震仪和模数(A/D)转换器,该装置就变成了一个实时的地震观测系统,我们称之为家用地震仪(Home Seismometer)。如果这种家用地震仪与地震早期预警的标准接收装置相连接,那么地震观测系统的数量就会极大地增多。在房间里,由人的活动所引起的背景噪声可能非常大,为此我们专门编写了软件,从而能够使用该家用地震仪进行现场预警。我们对软件做了检验,发现该软件能够准确地将噪声和地震分辨开来,并适用于几乎所有的地震事件。S.Horiuchi Y.Horiuchi S.Yamamoto H.Nakamura Changjiang Wu P.A.Rydelek M.Kachi 王蕤(译) 吕春来(校) 2012世界地震译丛2012,43,4:0
10Tonalites and plagiogranites of the Char suture-shear zone in East Kazakhstan:Implications for the Kazakhstan-Siberia collision显示文摘The paper presents first Ue Pb zircon ages and geochemical data from Carboniferous granitoids(tonalites and plagiogranites) of the Char sutureeshear zone in East Kazakhstan, which is located in the northwestern Central Asian Orogenic Belt(CAOB). The study included analysis of geological setting, major and trace elements, and rock petrogenesis. The Char tonalites and plagiogranites occur as NW-striking linear chains inside Visean serpentinite mélange. Petrographycally, the tonalites show signs of syntectonic deformation, and the plagiogranites are less deformed suggesting their later intrusion. The tonalites yielded a LA-ICP-MS zircon age of ca. 323 Ma, i.e. exactly at the boundary between the early and late Carboniferous. Compositionally, the tonalites and plagiogranites are characterized, respectively, by high SiO_2(67-70 and 73-74 wt.%) and Al_2O_3(17-19 and 14-15 wt.%), Sr/Y > 40 and low Yb=0.2-0.5 ppm.Their multi-element patterns show clear Nb-Ta negative anomalies. The low Nb/Ta ratios(7-15) and Zr(114-191 ppm) suggest a MORB-type protolith(amphibolite) with subchondritic Nb/Ta(8-17) and low Zr(1-72 ppm). The low contents of K and Rb suggest weak assimilation of the melts by island arc felsic crust. The subchondritic Nb/Ta ratios exclude their derivation by the melting of subducted/dehydrated MORB. We argue that the Char high-Al tonalites and plagiogranites formed by the melting of hydrated MORB at the base of the mafic lower crust at pressures of 10-15 kbar. The occurrences of the Char tonalites and plagiogranites inside the Visean serpentinite mélange overlapped by Serpukhovian conglomerates, their alignment parallel to deformation zones, and their geochemical features suggest their origin by the melting of mafic lower crust in relation to the collision of the Siberian and Kazakhstan continents.M.L.Kuibida I.Yu.Safonova P.V.Yermolov A.G.Vladimirov N.N.Kruk S.Yamamoto 2016Geoscience Frontiers2016,7,1:0
11用于轿车的带变速器的轮边电机显示文摘轮边驱动是可用于未来汽车并且具有发展前景的驱动技术,适用于各种不同的车型,例如混合动力车、电动车和燃料电池车等。但如要实现大规模推广尚需时日,其技术挑战在于使用尽可能小的电机,并达到较高的扭矩和足够高的终端转速。目前日本NSK公司为了实现该要求,已开发出了一种新型的轮边驱动装置,并已在某款车型上进行了验证。S.Yamamoto R.Morita M.Oike 范明强(译) 2019汽车与新动力2019,2,2:0
12Pulsed Laser Deposition of VO_(2)Single Crystal Thin Films on Sapphire Substrates显示文摘Thin films of VO_(2)single-crystalline on(0001)sapphire substrates have been prepared by visible pulsed laser ablation technique.The crystal quality and properties of the films are evaluated through electrical resistance measurement,x-ray diffraction(XRD),and Rutherford-backscattering spectroscopy/channeling(RBS/C)analysis.The dependence of the surface electrical resistance of the films on the temperature shows semiconductor-to-metal transitions with the resistance change of 7×10^(3)-2×10^(4).The hysteresis widths are from less than 1 to 3 K.XRD and RBS/C data reveal that the films prepared in particular conditions are single-crystalline VO_(2)with the(010)planes parallel to the surface of the sapphire substrate.朱沛然 S.Yamamoto A.Miyashita H.Naramoto 1998Chinese Physics Letters1998,15,12:0
13NC-330——一种防除麦田阔叶及禾本科杂草的新除草剂显示文摘在欧洲麦田,使用常规芽前除草剂往往难以防除看麦娘、野燕麦和猪殃殃等禾本科杂草。同时,所用的某些残留长的除草剂会对后茬轮作的甜菜和油菜有危害。由日本组合化学公司发现并开发的NC-330(NCI-851013)是一种新的磺酰脲类麦田芽后除草剂。经温室和田间试验表明,NC-330是一个很有希望的药剂。T.Nawamaki S.Yamamoto 梅春雷 1992农药译丛1992,14,4:0
14广岛大学的情报检索系统与科学情报服务显示文摘1977年广岛大学计算中心的成员研制成一个新的书目情报检索系统.该系统称为HUNDRED系统(Hiroshima Umirsity New Document Retrieval and Dissemination,广岛大学新文献检索与传播系统).研制HUNDRED系统的主要目的.是在实际情报检索系统中,实现最优化文档平衡组织方案的理论.另一方面,该大学图书馆成员计划并着手利用该系统为大学师生提供文献检索服务.本文将介绍该检索系统及检索服务的某些特点.H.IKEAD S.YAMAMOTO 王未 1985大学图书馆通讯1985,3,3:0
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