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ELEMENTS: 作品数：914被引量：1225H指数：16; 导出分析报告; 相关领域：理学更多>>; 相关作者：解青刘雅琼欧阳荔熊依杰王京宇更多>>; 相关机构：清华大学上海交通大学北京大学天津科技大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>

原子生态学:原子与生态的耦合: 《Science Bulletin》2024年第1期11-16,共6页Jordi Sardans Josep Penuelas; the Spanish MCIN;AEI/10.13039/501100011033(PID2020115770RB-I and TED2021-132627B-I00);the European Union Next Generation EU/PRTR;the Fundación Ramón Areces(CIVP20A6621)。; The functional roles of molecules in organisms and ecosystems are driven by the atoms that form them,including their threedimensional form,bond polarity,size,and conformation.Recent advances in environmental and ecolo...; 关键词：polarity ELEMENTS STRUCTURE

利用深地加速器核反应研究恒星等离子环境近阈量子效应被引量：1: 《Science Bulletin》2023年第7期666-669,共4页Michael Wiescher 柳卫平; Low energy particle accelerators,located at deep underground locations,have been developed over the last three decades,to perform nuclear reaction measurements at nearly cosmic ray free background conditions.They are ...; 关键词：conditions. 量子效应 ELEMENTS

Calculation of baffle effect and mutual interaction between elements for an underwater acoustic conformal array with application to the optimization of projecting beampattern被引量：1: 《Chinese Science Bulletin》2007年第18期2584-2591,共8页HE ZhengYao MA YuanLiang; The boundary element theory together with the optimization method is used to calculate the driving voltage weighting vector of a conformal array of underwater acoustic projecting transducers to obtain a low-sidelobe b...; 关键词：变换器共形天线阵边界元理论最优化法

Chemical weathering crust: A long-term storage of elements and its implications for sediment provenance被引量：3: 《Chinese Science Bulletin》1999年第S2期107-110,共4页MA Yingjun and LIU Congqiang State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China; RAKE earth element (REE) and other trace element distributions in fine grained detrital sediments are widely used to characterize source composition of sediments, but ambiguities remain concerning theresponse of sedim...; 关键词：WEATHERING profiles RARE earth ELEMENTS TRACE ELEMENTAL ratios sediment PROVENANCE erosion.

Trace element geochemistry during chemical weathering——As exemplified by the weathered crust of granite, Longnan, Jiangxi被引量：35: 《Chinese Science Bulletin》1999年第24期2260-2263,共4页Yingjun Ma Congqiang Liu; The granite weathering in Longnan, Jiangxi, is represented by mineralogical changes of feldspars · montmorillonite, illite · kaolinite, halloysite · bauxite, with Na, Ca, Si, P, V, U and Sr being in a mobile state ...; 关键词：GRANITE WEATHERING CRUST chemical WEATHERING TRACE ELEMENTS Longnan Jiangxi.

Determination of disperse elements in black shale by inductively coupled plasma mass spectrometry被引量：3: 《Chinese Science Bulletin》1999年第S2期173-174,共2页QI Liang, HU Jing and DENG Hailing Institute of Geochemistry Ore Deposit Open Laboratory, Chinese Academy of Sciences, Guiyang 550002, China; THE elements Se, Te, Ge, Re are easily evaporated out when HClO₄, HNO₃, HF are used as the opendigestion method. There is a great amount of organic and inorganic carbon in black shale, so it is n...; 关键词：disperse ELEMENTS BLACK SHALE ICP-MS.

Superconvergence for triangular cubic elements被引量：2: 《Chinese Science Bulletin》1999年第1期47-49,共3页Chuanmiao Chen Jicheng Jin Shi Shu; A new structure of superconvergence for the cubic triangular finite element approximation u/2 to a second-order elliptic problem Au=f is studied based on some orthogonal expansions in an interval. Suppose that Ω is a...; 关键词：SUPERCONVERGENCE TRIANGULAR CUBIC ELEMENT FINITE ELEMENT approxination.

Analysis of rare-earth elements in fluid inclusions by inductively coupled plasma-mass spectrometry (ICP-MS)被引量：4: 《Chinese Science Bulletin》1998年第22期1922-1927,共6页Wenchao Su Liang Qi Ruizhong Hu Guoping Zhang; theNaturalScienceFoundationofGuizhouProvince; Inductively coupled plasma_mass spectrometry (ICP_MS) is used to determine rare_earth elements abundances in fluid inclusions. Quartz separates from the Lannigou and Yata Carlin_type gold deposits, southwestern China,...; 关键词：FLUID INCLUSIONS RARE_EARTH ELEMENTS ICP_MS.

Trace element characteristics in the diopsides of peridotite xenoliths: a laser ablation-inductively coupled plasma-mass spectrometry study被引量：1: 《Chinese Science Bulletin》1998年第7期579-583,共5页Shaohai Chen Xinghua Zhou S. Y. O’Reilly W. L. Griffin Guohui Zhang M. Zhang; theNationalNaturalScienceFoundationofChina (GrantNo .492 72 0 97); Among the various xenoliths entrained by the Cenozoic Hannuoba basalts, peridotite is the most abundant one. The trace elements of the diopsides from the peridotite xenoliths were analysed by LA-ICP-MS. The overall de...; 关键词：LA-ICP-MS DIOPSIDE TRACE elements.

Superconvergence for L^2-projection in finite elements: 《Chinese Science Bulletin》1998年第1期22-24,共3页CHEN Chuanmiao Institute of Computing, Hunan Normal University, Changsha 410081, China; theNationalNaturalScienceFoundationofChina (GrantNo .193310 2 1); Two classes of superconvergence points for L 2 projection u\-n in n degree finite elements on uniform grids are shown by element analysis method. Superconvergence points of u n are n+1 order Gauss point G n+1 for odd ...; 关键词：SUPERCONVERGENCE FINITE ELEMENTS L 2 projection.

ELEMENTS