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| 1 | Decadal Variability Shown by the Arctic Ocean Hydrochemical Data and Reproduced by an Ice-Ocean Model显示文摘The Arctic is experiencing a significant warming trend as well as a decadal oscillation. The atmospheric circulation represented by the Polar Vortex and the sea ice cover show decadal variabilities, while it has been difficult to reveal the decadal oscillation from the ocean interior. The recent distribution of Russian hydrochemical data collected from the Arctic Basin provides useful information on ocean interior variabilities. Silicate is used to provide the most valuable data for showing the boundary between the silicate-rich Pacific Water and the opposite Atlantic Water. Here, it is assumed that the silicate distribution receives minor influence from seasonal biological productivity and Siberian Rivers outflow. It shows a clear maximum around 100m depth in the Canada Basin, along with a vertical gradient below 100 m, which provides information on the vertical motion of the upper boundary of the Atlantic Water at a decadal time scale. The boundary shifts upward (downward), as realized by the silicate reduction (increase) at a fixed depth, responding to a more intense (weaker) Polar Vortex or a positive (negative) phase of the Arctic Oscillation. A coupled ice-ocean model is employed to reconstruct this decadal oscillation. | M.Ikeda R.Colony H.Yamaguchi T.Ikeda | 2005 | Journal of Ocean University of China2005，4，4： | 1 |
| 2 | X-Ray and Neutron Diffraction Studies on Thermal Parameters of Thalous Bromide显示文摘Thermal parameters of TIBr were determined using both X-ray and neutron diffraction techniques. The data was analysed by Rietveld profile refinement procedure. From the neutron diffraction data, due to weak odd-order reflections, it was not possible to determine the individual thermal parameters. The X-ray diffraction measurements yielded BT1=0.296(5) nm2 and BBr=0.162(5) nm2. The overall isotropic value, B was 0.252(7) nm2 which is in good agreement with B=0.230(8) nm2 obtained from present neutron diffraction measurements. The present values are also in good agreement with theoretical estimates obtained from the shell models. | J.Bashir R.T.A.Khan T.Ikeda KenichiOhshima | 2003 | Journal of Materials Science & Technology2003，19，2： | 0 |
| 3 | 活塞销衬套中硫化物腐蚀机理分析显示文摘近年来,发动机小型化促使发动机产品向轻量化和紧凑性方向发展。然而,由于增加涡轮增压器和其他方法以补充发动机功率和扭矩,使发动机功率密度增加,导致热负荷和机械负荷增大,导致压装连杆小头的铜合金衬套(活塞销衬套)容易发生腐蚀问题。以活塞销衬套为典型代表的汽车轴承,可以通过与机油中的极压添加剂二硫代磷酸锌(ZnDTP)反应,发生硫化腐蚀,但其反应路径尚未清晰。本研究旨在发动机实际运行环境下,探讨ZnDTP和铜的反应路径。为了确定温度、铜含量和机油恶化状态对腐蚀的影响,进行了部件腐蚀试验。试验结果表明,腐蚀机理的主要因素并不是ZnDTP和铜之间直接反应,而是中间产物起到了很大作用。在日本爱知(Aichi)同步辐射中心,通过补充使用X射线衍射(XRD)、X射线近边吸收结构谱(XANES)和X射线吸收精细结构谱(EXAFS),分析确定了中间产物结构。通过使用这种方法,得到的产物结构符合基本原理。 | 王晓滕(译) 曲栓(译) | 2021 | 汽车与新动力2021，4，5： | 0 |
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