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清华大学生命学院施一公研究组在《科学》发表论文报道剪接体组装过程重要复合物U4/U6.U5 tri-snRNP的三维结构（图）
清华大学生命学院 施一公研究组 科学 剪接体组装过程 复合物U4/U6.U5 tri-snRNP的三维结构
2016/1/8
北京时间2016年1月8日凌晨，清华大学生命学院施一公教授研究组在《科学》（Science）就剪接体的结构与机理研究再发长文（Research Article），题为《U4/U6.U5 三小核核糖核蛋白复合物3.8埃的结构：对剪接体组装及催化的理解》（The 3.8 A Structure of the U4/U6.U5 tri-snRNP: Insights into Spliceos...
Effects of metal ions and pH on the formation and decomposition rates of di- and tri-peptides in aqueous solution
salt-induced peptide formation metal ions copper (II) complex with glycine hydrothermal system prebiotic chemistry, origin of life
2017/4/11
The recent discovery of active deep-sea hydrothermal systems venting high-pH fluids suggests that the prebiotic chemistry
of the hydrothermal systems of early Earth may have been more diverse than pr...
This paper introduces the base-X notation and discusses the conversion between numbers of different bases. It also introduces the tri-value logic that is associated with the base-3 system.
Simulation Vacuum Preloading Method by Tri-Axial Apparatus
Soft Soil Soil Improvement Vacuum Preloading Degree of Consolidation
2013/3/7
It is very important to control any risk of instability of embankment during vacuum construction, the simulation vacuum preloading method using tri-axial apparatus is proposed to predict the behavior ...
采用磁控溅射法复制Papilio maackii Ménétriés 蝶的鳞片结构色
蝴蝶 鳞片 结构色 磁控溅射
2013/11/4
通过扫描电子显微镜(SEM)和透射电子显微镜(TEM)试验观察, 发现Papilio maackii Ménétriés 蝴蝶鳞片具有多层薄膜堆结构. 通过磁控溅射法(MS), 在以单晶硅片为基底材料上, 采用ITO(90%In2O3+10%SnO2) 与Polymethyl Methacrylate (PMMA) 两种材料复制了仿蝴蝶鳞片多层周期结构, 并采用分光计对样品进行光学性能检测, 试验...
Combined boundary value problems for the nonhomogeneous tri-analytic equation
Boundary value problems tri-analytic equations solvability conditions
2011/7/28
Abstract: In the present article we present a particular combination of boundary problems for the inhomogeneous tri-analytic equation: the Neumann-(Dirichlet-Neuman) problem and the (Dirichlet-Neumann...
Driving conditions dependence of magneto-electroluminescence in tri-(8-hydroxyquinoline)-aluminum based organic light emitting diodes
magneto-electroluminescence organic light emitting diodes
2011/9/2
we investigated the magneto-electroluminescence (MEL) in tri-(8-hydroxyquinoline)-aluminum based organic light-emitting diodes (OLEDs) through the steady-state and transient method simultaneously. The...
Multi-Matrix Models and Tri-Sasaki Einstein Spaces
Multi-Matrix Models Tri-Sasaki Einstein Spaces
2010/12/24
Localization methods reduce the path integrals in {\cal N} >= 2 supersymmetric Chern-Simons gauge theories on S^3 to multi-matrix integrals. A recent evaluation of such a two-matrix integral for the {...
A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large theta_{13}
Democratic Tri-bimaximal Neutrino Mixing Relatively Large theta_{13}
2011/1/5
Recent neutrino oscillation data hint that the smallest neutrino mixing angle 13 is possible to lie in the range 5◦ < ∼ 13 <∼12◦.
Suppression of Non-specific Adsorption Using Densified Tri(ethylene glycol) Alkanethiols: Monolayer Characteristics Evaluated by Electrochemical Measurements
Adsorption Tri Alkanethiols Electrochemical Measurements
2010/9/16
Tri(ethylene glycol) terminated short alkylchain thiols (TEGCnSHs) offer good potential for constructing ultra-thin protein-resistant monolayers because they have an alkylchain for forming a densely p...
Synthesis, Spectral Characterization, and Antimicrobial Activity of Arsenic(III) and Bismuth(III) tri[3(2´-hydroxyphenyl)-5-(4-subsituted phenyl)pyrazolinates]
Arsenic Bismuth Pyrazolinates Antimicrobial activity
2010/4/9
Arsenic(III) tripyrazolinates and bismuth(III) tripyrazolinates of the type M(C15H12N2OX)3 [where C15H12N2OX = 3(2'-hydroxyphenyl)-5-(4-substituted phenyl)pyrazoline] have been synthesized by the reac...
20th century trends and budget implications of chloroform and related tri-and dihalomethanes inferred from firn air
budget implications of chloroform tri-and dihalomethanes firn air
2009/1/13
Four trihalomethane (THM; CHCl3, CHBrCl2, CHBr2Cl and CHBr3) and two dihalomethane (DHM; CH2BrCl and CH2Br2) trace gases have been measured in air extracted from polar firn collected at the North Gre...
配合物[Co(2，3-tri)2Cl]·ZnCl4·Cl·H2O和[Co(amp)3]·amph·Cl·2ZnCl4·H2O合成及晶体结构
Co(Ⅲ)配合物 晶体结构 X射线-衍射单晶结构分析 C-H…π相互作用
2008/3/19
采用三元胺及二元胺混配方法进行[Co(N)5Cl]2+配合物的合成，分离出分别由三元胺配体和二胺配体构成的2个钴胺配合物。晶体结构测定表明由三元胺配体构成的钴胺配合物中，三元胺为N-(2-Aminoethyl)-1，3-propanediamine(记为2，3-tri)，但并未以六胺形式配位[Co(N)6]3+，而以六胺五配位形式形成[Co(N)6Cl]2+，这
摘要 利用-维及二维核磁共振谱，如gCOSY和NOESY，对合成的5个[Co(3,3-tri)(ibn)Cl]^2^+几何异构体在溶液中的结构进行了解析，与柱色层方法分离出的五带配合物对照的结果是：b1=m4;b2=m2;b3=m1;b4=m3及b5=f3。利用量子化学从头算方法，从能量角度解释了配合物异构体的分布规律。