三聚体

WD40 domain, found in a number of eukaryotic proteins that cover a wide variety of functions including adaptor/regulatory modules in signal transduction, pre-mRNA processing and cytoskeleton assembly; typically contains a GH dipeptide 11-24 residues from its N-terminus and the WD dipeptide at its C-terminus and is 40 residues long, hence the name WD40; between GH and WD lies a conserved core; serves as a stable propeller-like platform to which proteins can bind either stably or reversibly; forms a propeller-like structure with several blades where each blade is composed of a four-stranded anti-parallel b-sheet; instances with few detectable copies are hypothesized to form larger structures by dimerization; each WD40 sequence repeat forms the first three strands of one blade and the last strand in the next blade; the last C-terminal WD40 repeat completes the blade structure of the first WD40 repeat to create the closed ring propeller-structure; residues on the top and bottom surface of the propeller are proposed to coordinate interactions with other proteins and/or small ligands; 7 copies of the repeat are present in this alignment.

WD40域，在真核蛋白质的数量发现，涵盖了包括各种功能适配器/信号转导，mRNA前体细胞骨架组装加工和管理模式；通常包含一个从11月24日生长激素肽的N残留端和西部数据肽在其C端和40残留长，因此得名WD40；之间的生长激素和WD是一个保守的核心，作为一个稳定的螺旋桨式平台，可以绑定的蛋白可以稳定或可逆性；形式与每个刀片是一个四叶片组成的几个类似结构的螺旋桨，搁浅反平行β-负债表；很少检测副本实例假设，形成了聚大结构，每个WD40重复序列形成了前三个链的一个刀片，并在未来的刀片上链，最后C -末端WD40重复完成了第一WD40重复叶片结构，创造螺旋桨的封闭环结构，对螺旋桨顶部和底部表面残留物，则建议协调与其他蛋白质和/或小配体； 7重复副本存在于相互作用这条路。

Polyborosilazane, a precursor to SiBNC ceramic, was synthesized via cocondensation approach using methyldichlorosilane (MeHSiCl2), boron trichloride (BCl3) and hexamethydisilazane as starting materials. SiBNC ceramics were obtained by pyrolysing the as-synthesized PBSZ in N2 or NH3/N2 atmospheres.

以甲基氢二氯硅烷、三氯化硼、六甲基二硅氮烷为起始原料，采用共缩合原理合成了聚硼硅氮烷先驱体，将PBSZ分别在N2和NH3/N2气氛中高温热解得到SiBNC陶瓷。

Three activated carbons having different surface areas, coconut-shell based, pelletized and bamboo-derived, were modified by mixing them with four thermoplastic precursors, poly, hydroxy propyl cellulose, citric acid, and fluorine-containing polyimide followed by heat treatment at 900℃ for 1h.

三种具有不同比表面积的活性炭—椰壳基AC-C、粒状AC-P和竹基AC-B分别与四种热塑性前驱体—聚乙烯醇，羟基丙基纤维素，柠檬酸，含氟聚酰亚氨混合后，在900℃热处理1h。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。