有证据显示那个通道由同源四聚体或异源四聚体构成的络合物。
There are evidences that channel is constructed by homotetramer or hereotetramer, GIRK1 -GIRK4 subtype express in different locus of central nervous system (CNS) of animals.
随机六聚体与转录物一起在多个点引发逆转录。
Random hexamers prime reverse transcription at multiple points along with the transcript.
基丁酸酯共聚物是作为均聚物PHB的降解率一般用途的首选是在其正常高熔体加工温度。
PHB copolymers are preferred for general purposes as the degradation rate of PHB homopolymer is high at its normal melt processing temperature.
新方法允许范围广泛的聚类似物,以获得在几个步骤,作为烯前体是现成的。
The new methods allow a wide range of poly analogs to be obtained in few steps, as the allylic precursors are readily available.
化合物4和5为新的白藜芦醇四聚体,化合物1 ~3为首次从该植物中分得。
Compounds 4, 5 are new resveratrol tetramers, compounds 1-3 were isolated from this plant for the first time.
真菌多糖是从大型食用菌的子实体和菌丝体中分离的由10个以上的单糖通过糖苷键连接而成的高分子多聚物。
Fungi polysaccharides were isolated from the fruiting body and mycelium of the large edible fungus, which were polymers linked by more than 10 monosaccharides through glucoside keys.
烷基烯酮二聚体(akd)的中(碱)性施胶系统中,腐浆及沉积物的产生和积累是产生纸张脏点、破洞,甚至引起断头等质量问题的主要原因。
Formation and accumulation of slimes and deposits are the major reasons inducing paper quality problems such as dirty spots, broken holes, and even cause the broken of paper in AKD sizing system.
经过短时间反应后,大多数单体消失,反应体系将是含有二聚体,三聚体和其他低聚物的混合物。
After a short reaction time most of the monomer will have disappeared and the reaction system will contain a mixture of dimer, trimer and other low polymers.
首先合成了有关的单体及二聚体的模拟化合物,然后进行了反应速率常数的测定。
The related monomers and their model compounds for polymers were synthesized, then their reaction velocity constants were determined.
有机硅聚脲基础聚合物,其制备的弹性体,其制备方法及其应用。
Organic silicon polyurea base polymer, elastic body prepared by the same, preparation method and application thereof.
硅酮(亦称聚硅氧烷):可制成液体、树脂和弹性体多种形态的聚合物。
Silicone (polysiloxane) : Any of a diverse class of polymers manufactured as fluids, resins, or elastomers.
本文首次给出配体,配合物均可生成二聚体的配合物生成反应动力学研究方法。
The method for studying kinetics of formation reaction of complex in aggregation system was reported in this paper.
在离体条件下,以鲤鱼肝脏erod酶为生物标志物研究了壬基酚聚氧乙烯醚及壬基酚的毒性效应。
The toxical effects of nonylphenol ethoxylates and nonylphenol were studied with EROD in liver of carp as biomarker under external condition.
MHCI类四聚体是由4个MHC I类复合物和一个带有荧光标的亲和素分子组成的。
An MHC class I tetramer was composed of 4 MHC class I complexes and a fluorescently labeled streptavidin molecule.
基于物元模型和聚类分析,提出了岩体边坡稳定性的可拓聚类预测方法。
Based on the matter-element model and the classified analysis method, an extension classification prediction method for the stability of rock-mass slopes is proposed.
采用半预聚物法合成了以L - MDI、DMTDA、P PO为原料的双组分rim聚氨酯弹性体。
The RIM polyurethane elastomer was prepared by means of quasi-prepolymer process, with L-MDI, DMTDA, PPO as materials.
采用红外吸收光谱图和透射电镜表征了醇酸树脂、有机硅预聚体以及醇酸-有机硅嵌段共聚物。
The alkyd resin, silicone prepolymer and alkyd-silicone block copolymer were characterized bv use of iR and SEM.
综述了多面体低聚倍半硅氧烷(POSS)改性传统聚合物的作用及其应用;
The significance and application of reinforcement of conventional polymers by POSS are reviewed.
采用MDI、PAPI、HDI、IPDI等不同的异氰酸酯和聚酯多元醇、聚醚多元醇等反应,制备高固体分的聚氨酯弹性体预聚物。
A high solid elastic polyurethane prepolymer has been prepared based on MDI, PAPI, HDI, IPDI and polyester polyols and polyether polyols.
研究发现环状聚芳醚酮齐聚物熔融温度低,熔体粘度小,具有良好的流动性,十分有利于充模成型及浸渍增强纤维。
The melt viscosity of the cyclic oligomer is very low which is necessary to impregnate the carbon reinforcement well.
采用本体聚合方法将丙烯酸酯单体的混合物实施热聚合制备预聚体,采用核-壳聚合法的单体投料方式同时加入链转移剂十二烷基硫酵来控制反应进程。
UV curing polyacrylate pressure sensitive adhesive was synthesized by core-shell polymerization, at the same time, chain transfer agent NDM was added for controlled reaction rate.
该固色剂为树脂性预聚体,是一种多官能度的化合物,既能与染料分子反应,也能与纤维素大分子反应。
This agent is mainly used for reactive dyes, and in some cases, it can also be used for direct dyes. Its molecules can react with one another into network under certain conditions.
以聚酯(PEA、PEPA)或聚醚(PTMG)和TDI为原料合成聚氨酯预聚体,用三异丙醇胺 (TIPA)和1,4-丁二醇(BDO)的混合物作扩链剂制备聚氨酯弹性体。
A series of polyurethane (PU) elastomer were synthesized from polyester(PEA, PEPA) or polyether(PTMG), toluene dissocyanate (TDI), mixture of triisopropanolamine(TIPA) and 1,4-butanediol(BDO).
本发明制得的聚 合物可用作先进复合材料的基体树脂、耐高温涂层及陶瓷前驱体。
Moreover, the polymer can be used as matrix resin, high temperature-resisting coat and ceramic precursor of advanced composite materials.
物理性能:单散孔,含树胶沉积物,侵填体丰富,导管与射线间纹孔小,轴向薄壁组织为傍管型,主为聚翼状,带状也常见。
Physical properties: a single scattering holes, including gum sediments, tylosis rich, catheter and ray pits between small, axial parenchyma as paratracheal type, main poly of, ribbon is also common.
人们设计了用来模拟光解酶作用的模型化合物,例如将一个发色团共价连接到一个嘧啶二聚体上。
Several model compounds that mimic the action of photolyase have been designed, such as a chromophore attached to a pyrimidine dimer.
描述了包括总共具有15个组件的聚酮化合物合酶、具有1个组件的非核糖体肽合成酶和细胞色素P 450羟化酶组成的聚酮化合物合酶复合物。
A polyketide synthase complex composed of polyketide synthase with 15 total modules, a non-ribosomal peptide synthetase with I module, and a cytochrome P450 hydroxylase is described.
这些材料包括各种丙烯酸单体和低聚物、伯胺、仲胺和叔胺、酸官能单体和低聚物、硅酮、蜡和弹性体等。
These materials include a variety of acrylic monomers and oligomers, primary, secondary and tertiary amines, acid-functional monomers and oligomers, silicones, waxes and elastomers, among others.
以间苯二酚-糠醛低聚物为炭前驱体,三嵌段共聚物F127为结构导向剂,通过悬浮辅助的蒸发诱导自组装乳化成球,高温炭化后得到有序中孔炭球。
Ordered mesoporous carbon spheres(OMCs) were synthesized by suspension-assist evaporation-induced self-assembly of resorcinol-furfural oligomers and triblock copolymer F127.
以间苯二酚-糠醛低聚物为炭前驱体,三嵌段共聚物F127为结构导向剂,通过悬浮辅助的蒸发诱导自组装乳化成球,高温炭化后得到有序中孔炭球。
Ordered mesoporous carbon spheres(OMCs) were synthesized by suspension-assist evaporation-induced self-assembly of resorcinol-furfural oligomers and triblock copolymer F127.
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