作者: SONG GaoGuang (School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国科学(B辑:化学)(英文版) 2009 第52卷 第5期 P626-631
关键词: mono-and;bis-methanophosphonate;fullerene;aqueous;nanoparticle;suspension;DNA;restrictive;endonucleases;reactive;oxygen;species
摘要: Aqueous nanoparticle suspension of fullerene and its derivatives are currently attracting much attention. To determine the effects of aqueous nanopart ...
作者: ZHANG Feng,TAO Ran,WANG Yue (Department of Electronic Engineering, Beijing Institute of Technology, Beijing100081, China)
出处: 中国科学(E辑:技术科学)(英文版) 2009 第52卷 第9期 P2619-2628
关键词: fractional;Fourier;transform;filterbank;interpolation;identity
摘要: Reconstruction of a continuous time signal from its periodic nonuniform samples and multi-channel samples is fundamental for multi-channel parallel A/ ...
作者: WU Qin-Pei,XI Xiao-Dong,CHEN Xi et al (Department of Applied Chemistry and Pharmarceutics,Beijing Institute of Technology,Beijing 100081,China;Department of Chemistry,School of Science,Beijing Institute of Technology,Beijing 100081,China)
出处: 中国化学(英文版) 2009 第27卷 第10期 P1962-1966
关键词: acetal;thioacetal;protecting;group;acyl;group
作者: HE KeJuan,CHENG Hua,ZHU YanYing,WANG LiangYu,ZHANG YunHong (Institute for Chemical Physics,School of Science,Beijing Institute of Technology,Beijing 100081,China)
出处: 中国科学(B辑:化学)(英文版) 2009 第52卷 第7期 P879-886
关键词: conductance;supersaturation;microdroplet;chloride;sodium;chloride;potassium;chloride;ammonium;chloride
摘要: By using the measuring system previously designed by the authors, the conductance of KCl, NaCl and NH4Cl microdroplets is obtained in the whole measur ...
作者: WU QunYan,TANG YuPeng,ZHANG XiuHui (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国科学(B辑:化学)(英文版) 2009 第52卷 第3期 P288-294
关键词: planar;octacoordinate;iron;planar;octacoordinate;cobalt;aromatic;properties;B3LYP/6-311+G*
摘要: The boron rings containing planar octacoordinate transition metals, D8h FeB82-, CoB8- and CoB83+, C2v FeB8, D2h CoB8+ and CoB8, are optimized with all ...
作者: PENG Bin,GU FengLong,ZHANG XiuHui,LUO Qiong,LI QianShu (School of Chemistry and Environment,South China Normal University,Guangzhou 510631,China;Beijing Institute of Technology,Beijing 100081,China;School of Chemistry and Environment,South China Normal University,Guangzhou 510631,China;Beijing Institute of Technology,Beijing 100081,China)
出处: 中国科学(B辑:化学)(英文版) 2009 第52卷 第11期 P1938-1944
关键词: dinuclear;ruthenium;carbonyls;DFT;theoretical;study
摘要: Homoleptic mononuclear and binuclear ruthenium carbonyls Ru(CO)n(n=3―5) and Ru2(CO)n(n=8,9) have been investigated using density functional theory.Six ...
作者: GUO YongXin,LIU Chang,LIU ShiXing,CHANG Peng (College of Physics, Liaoning University, Shenyang 110036, China;Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081, China;College of Physics, Liaoning University, Shenyang 110036, China;Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081, China)
出处: 中国科学(E辑:技术科学)(英文版) 2009 第52卷 第3期 P761-770
关键词: almost-Poisson;structure;non-self-adjointness;nonholonomic;systems;symplectic;form;Jacobi;identity;torsion
摘要: Non-self-adjoint dynamical systems, e.g., nonholonomic systems, can admit an almost Poisson structure, which is formulated by a kind of Poisson bracke ...
作者: WANG NaiXing,TANG XinLiang (Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,China;College of Chemistry and Chemical Engineering,Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,China;School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing 100081,China)
出处: 中国科学(B辑:化学)(英文版) 2009 第52卷 第8期 P1216-1219
关键词: chiral;synthesis;enantioselectivity;enatiomeric;excess;chiral;HPLC;analysis
摘要: R-Enantiomer of the β-receptor antagonist N-[3-acetyl-4-(2-hydroxy-3-isopropylamino-propoxy)phenyl] butanamide with high enantioselectivity was synthe ...
作者: 吴惠彬,梅凤翔 (School of Science Beijing Institute of Technology Beijing China)
出处: 中国物理:英文版 2009 第8期 P3145-3149
关键词: 完整系统;对称性;坐标;守恒量
摘要: This paper discusses the symmetry of Lagrangians of holonomic systems in terms of quasi-coordinates.Firstly,the definition and the criterion of the sy ...
作者: 尚玫,梅凤翔 (School of Science Beijing Institute of Technology Beijing China)
出处: 中国物理:英文版 2009 第8期 P3155-3157
关键词: 理论方程;广义;Birkhoff方程;松;充分条件;结构理论;积分;组成
摘要: This paper presents a Poisson theory of the generalized Birkhoff equations,including the algebraic structure of the equations,the sufficient and neces ...
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