二聚的

It is concluded that with the formation of PEG modified network, a larger matrix deformation and higher crack propagation energy can be achieved.

在"半互穿网络"的增韧模型中，聚乙二醇的加入增加了不饱和聚酯的自由体积，在体系受冲击时提高某些链段的活动能力；但这种网络抵抗外力的变形能力有限的。

For the synthesis reaction of chalcone, cyclohexanone aldolization and biodiesel,γ-Al_2O_3-NaOH-Na solid superacid has a satisfactory catalytic activity. With hypnone and phenylaldehyde as raw material, amount of catalyst 7.5% wt% of material, mole ratio of hypnone and phenylaldehyde 1:1.1, reaction temperature 40℃, after 3 hours, the yield of chalcone can be up to 96.88%. With cyclohexanone as raw material, amount of catalyst 10% wt% of material, reaction temperature 190℃, after 3 hours, dimmer of cyclohexanone can be up to 85.66%.

将该固体超强碱催化剂应用于查尔酮、环己酮自缩合以及生物柴油的合成反应中，该改性固体超强碱催化剂表现出了良好的催化活性：以苯乙酮和苯甲醛为原料，反应温度为40℃，催化剂用量为反应物总质量的7.5％，苯甲醛与苯乙酮摩尔比为1：1.1，反应3h查尔酮产率可达96.88％；以环已酮为原料，催化剂用量为原料总质量的10％，反应温度为190℃，反应3h，二聚物的总收率可达85.66％；以动物油和甲醇为原料，醇油摩尔为9：1，催化剂用量为动物油质量的2％，反应温度为70℃，反应3h后，生物柴油的收率可达91.8％。

Erve growth factor can combine with its" receptor (one of tyrosine protein kinase receptor coded by proto - oncogene tyrosine kinase, TrkA), Causing the molecule of receptors to gather on the cell surface, and the tyrosine protein in cytoplasmic domain may be activated, three tyrosine base in the kinase domain of its" receptor and two tyrosine base at other domain be phosphated, thus, phosphated tyrosine receptor kinase became the bracket which absorb all kinds of connective proteins and kinases.

GF与其酪氨酸受体激酶受体(由原癌基因trk编码的一种酪氨酸蛋白激酶受体，TrkA)相结合，引起受体分子在细胞表面发生二聚体化，然后受体细胞内结构上酪氨酸活性被激活，使受体自身结构中位于激酶结构域的三个酪氨酸残基及在此结构域外的两个酪氨酸残基发生自身磷酸化，这样，磷酸化的酪氨酸受体激酶A便成为吸收各种连接蛋白质和酶的支架。

The results showed that in this experiment condition the optimal preparation condition for TiO2 films which have better photoactivity was found to be: TiO2 sol concentration 0.7mol/l, the amount of PEG 0.5g, coating cycles 3, heat-treated terms 480 C, Ih.

研究结果表明：在本实验条件下，具有较好光催化活性的TiO_2薄膜的最佳制备条件为：TiO_2溶胶的浓度为0.7mol／1，聚乙二醇的加入量为0.5g，镀膜层数为3，热处理温度为480℃，保温1h。

When introduced the ultrasound into EHD of acrylonitrile, the yield of propionitrile is increased, but the yield of hydrotrimer is decreased as compare to the silent condition.

对丙烯腈电化学氢化二聚反应生成己二腈的体系中施加超声的结果表明，对这一后置化学反应的体系，超声可以改变反应的机制，并最终对电解产物的分布产生影响。

We have researched distribution of TGF β and its receptor in various age group and discs of various degeneration grade, found that positive ratio of TGF β and its receptor is higher in below 40 year old group and discs of MRI Ⅰ and Ⅱ grade, mainly occur in fibrous cartilagous cells of fibrous annulus and nucleus pulpous; In group of 40-60 years old and grade Ⅱ and Ⅲ discs, TGF β decreased and TGF β R decreased not as much as TGF β; In above 60 years old group, TGF β and its receptor almost disappear.

生长因子包括TGF-β对细胞功能有重要调节作用，它是一种相对分子质量为2.5×10〓的二聚体多肽，几乎参与了哺乳动物所有细胞的病理，生理过程，尤其是在细胞外基质的产生及调控方面意义重大，且TGF-β已被公认为是与胶原代谢关系最密切的细胞因子。胡有谷、陈宏等，应用杂交技术检测了TGF-β对椎间盘Ⅰ、Ⅲ型胶原MRA的调节作用。

Previous study showed that over-expression of PICK1 in human leukemia REH cells rendered a higher resistance to etoposide-induced apoptosis through a recruitment of PKC alpha which resulted in maintenance of mitochondrial membrane potential, an enhanced phosphorylation of the anti-apoptotic Bcl-2 protein at Ser70, and inhibition of Bax dimerization.

在本实验室先前的研究，於人类血癌REH细胞中过度表现PICK1蛋白质，PICK1能够藉由招揽蛋白激酶C alpha至粒线体上，引起Bcl-2磷酸化程度提高，抑制Bax蛋白二聚体的形成，进而稳定粒线体的膜电位，以至於细胞对於化疗药物etoposide引起的程式凋亡具有抗药性。

The results show that the thermal degradation process of polystyrene initiates from chain end scission, and styrene dimer is the residual of degradation of polystyrene; Different catalysts have different catalytic activity on the degradation process of polystyrene, among which barium oxide is the best.

作者利用热重质谱法对聚苯乙烯热降解和催化降解过程进行了研究，得出以下结论，聚苯乙烯的热降解过程主要由链端断链反应引发，苯乙烯二聚体可能是聚苯乙烯降解结束阶段的剩余物；不同催化剂在聚苯乙烯降解过程中具有不同的催化活性，其中氧化钡的催化活性最高。

I. Design and selection of thc high affinity DNA ligands for singIe-chain reprcssorSingle-chain repressor RRn., is a derivative of bacteriophage 434 repressor,which contains covalent1y dimerized DNA-binding domains (axnino acids 1-69) of thephage 434 repressor.

一。设计和筛选单链阻遏蛋白的高亲和力DNA结合序列单链阻遏蛋白RR_是噬菌体434阻遏蛋白的衍生物，它是噬菌体434阻遏蛋白的N端DBD（1—69位氨基酸）组成的共价二聚体。

Mitochondrial Complex II belongs to the succinate:ubiquinone oxidoreductase super-family, whose member normally consists of a soluble catalytic hetero-dimer and an integral membrane region.

线粒体复合物 II 属于琥珀酸泛醌氧化还原酶家族，这个家族中的酶通常包含一个水溶性的具有催化活性的异二聚体以及一个完整的跨膜部分。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。