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RING: 作品数：1255被引量：1296H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：陈建龙杨建成李旭锋刘志斌张华剑更多>>; 相关机构：中国科学院大学中国科学院近代物理研究所东南大学中国科学院更多>>; 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国家高技术研究发展计划中国博士后科学基金更多>>

N_(18)ring:A building block for constructing 1D and 2D polymeric nitrogen frameworks: 《Science Bulletin》2024年第24期3860-3866,共7页Yuxiang Gao Ying Zhang Shuang Liu Bo Jin Linlin Guo Xu Guo Zhen Yao Peng Wang Bingbing Liu; supported by the National Key R&D Program of China(2023YFA1406200);the National Natural Science Foundation of China(NSFC)(12174143,12404014);the Basic Science Center Project of NSFC(52388201);the China Postdoctoral Science Foundation funded project(2023M741352).; Exploring the fundamental building block is essential for constructing functional materials with extended topological configurations.In the polymeric nitrogen system,no fundamental building blocks have been reported s...; 关键词：Polymeric nitrogen Building block N_(18)ring High pressure High-energy-density materials

Experiments on ring wave packet generated by water drop被引量：2: 《Chinese Science Bulletin》2008年第11期1634-1638,共5页ZHU GuoZhen LI ZhaoHui FU DeYong; the State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences;partially supported by the National Natural Science Foun-dation of China (Grant No. 10674081); The propagation of ring wave packet (composed of carrier waves modulated by an envelope) generated by a water drop was studied experimentally. It is a localized wave packet propagating with constant velocity and low d...; 关键词：水滴环状波包实验研究水表面波

fMRI-constrained source analysis of visual P300 in Landolt ring task被引量：1: 《Chinese Science Bulletin》2008年第1期76-86,共11页LI YueZhi XU Tao WANG LiQun HU Yong; the Natural Science Foundation of Guangdong Province (Grant No. 06028566); An fMRI-constrained source analysis was applied to investigate visual P300 in the Landolt ring task. To study the localization and relative activation timing of P300 generators, we implemented simultaneous EEG/fMRI to...; 关键词：视觉共点流环 fMRI分析偶极子

Synthesis and characterization of a three-ring bent-core compound被引量：1: 《Chinese Science Bulletin》2005年第17期1849-1853,共5页TANG Yanhong MEI Chongyu LI Shaojun WANG Yan WANG Xingdong WANG Lixiang YAN Donghang YE Cheng; This work was supported by the Special Funds for Major State Basic Research Projects(Grant No.2002CB6 13400);the National Natural Science Foundation of China(Grant Nos.90301008and 20025413).; To investigate the vacuum-deposited films of the banana-shaped mesogens, we prepared a three-ring bent-core (that is, banana-shaped) compound m-bis(4-p- octoxysryrenyl)benzene (m-OSB) and used it as a prototype for st...; 关键词：真空沉积薄膜香蕉型介质核心分子分子结构光谱

Relationship between δ^(13)C and index of ring width: 《Chinese Science Bulletin》1999年第S2期81-83,共3页WANG Shilu, WAN Guojiang and AN Ning State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China; 1 Materials and methods THE tree-ring reported here is one of pine discs sampled at 3 200 m a.s.l. in Qongtelian Valley in the Tuomu’er Peak region in 1978. The local geographical and climate condition has been intro...; 关键词：TREE RINGS δ¹³C INDEX of RING WIDTH correlation CLIMATE changes.

Two theorems on QF rings: 《Chinese Science Bulletin》1999年第16期1458-1460,共3页Zhixiong Chen Weimin Xue; It is proved that a left QF-2 ring R is QF if R is either an artinian strongly right bounded ring, or a finite strongly left bounded and left Kasch ring with Soc(RR) = Soc( RR).; 关键词：QF RING QF-3 RING QF-2 RING STRONGLY right (left) BOUNDED ring.

Invariant basis number of the ring of Morita context: 《Chinese Science Bulletin》1997年第8期633-636,共4页HAO ZhifengDepartment of Applied Mathematics, South China University of Technology, Guangzhou 510641, China; A ring is said to be an IBN ring if for every free left module A,every two bases of A havethe same cardinal.The class of such a ring has been applied to alegbraic K-theory and topolo-gy.The free module over the IBN ri...; 关键词：RING of MORITA context IBN RING FIVE Lemma.

Quasi-critical ring of a primitive ring with nonzero socle: 《Chinese Science Bulletin》1997年第3期189-192,共4页JIANG ZimeiDepartment of Mathematics, Beijing Normal University, Beijing 100875, China; IN ref. [1] Jacobson proved the structure theorem for primitive rings with nonzero socles that R is a primitive ring withsocle S≠{0} if and only if there is a pair of dual vector spaces (M,M’) over a division ring ...; 关键词：PRIMITIVE RING SOCLE CONJUGATE SPACE total SUBSPACE of CONJUGATE space.

Structures and isomerization of cabenoids H_2CLiBr: 《Chinese Science Bulletin》1997年第3期207-210,共4页QIU Huayu and DENG ConghaoTheoretical Chemistry Group, Shandong University, Jinan 250100, China; ALTHOLIGH carbenoids as the active organometallic intermediates have been widely used in organic syntheses, up to now, only few simple saturated and unsaturated carbenoids, such as H₂CLiF, Cl₃CLi...; 关键词：ab INITIO CARBENOID three-membered RING isomerization.

Bjork's problem about filtered rings and graded rings: 《Chinese Science Bulletin》1996年第19期1585-1588,共4页周梦; Let R be a filtered Noetherian ring with identity and M an R-filtered module. The associated graded ring of R is denoted by G(R) and the associated graded G(R) module of M is denoted by gr(M). Bjork studied in ref. [1...; 关键词：filtered RING GRADED RING MODULE with good FILTRATION finitely generated MODULE COMPLETION of filtered module.

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