查询词典 chalcone

Synthesis of 3,3'-dinitro chalcone under ultrasound irradiation using K2CO3 catalyst was reported in this article.

作者简介：王维(1976－)，男，回族，安徽全椒人，硕士研究生，主要从事高分子功能材料方面的合成与应用研究。

In the case of cold induced brain injury with chalcone, the content of LPO and activity of SOD in animal b...

体内实验表明，免经液氮冷冻致脑损伤脑水肿后，其血清及脑组织中的SOD活性明显降低，LPO含量明显升高。

In this thesis, several novel reaction-controlled chiral phase-transfer catalysts were designed and synthesized from readily available materials, and were used in the asymmetric epoxidation of unfunctionalized olefins and chalcone.

本文以有机合成方法学为目标，从廉价的原料出发，合成出几个新的反应控制的手性相转移催化剂，并且检验了他们在催化烯烃的不对称环氧化中的催化效果。

A chalcone synthase gene was isolated from Ginkgo biloba leaves using the method of rapid amplification of the cDNA ends.

利用RACE技术克隆到银杏的一个查尔酮合成酶基因，命名为GbCHS2，其cDNA全长1608 bp，包括长1173 bp的读码框，编码391个氨基酸。

Partial sequences of chalcone synthase gene exon 2 were amplified by PCR method from genomic DNA of 10 species of the basal eudicots. After cloning and sequencing, 26 seqences were obtained.

用PCR方法从目前极少被报道的真双子叶基部类群10种植物的总DNA中扩增出CHS基因外显子2的部分序列进行分析，经克隆后测序，共得到26个不同的片段。

The interaction of these chalcone derivatives, DMAC-CD with transitional metal ions were studied by steady state and time-resolved fluorescence spectral techniques.

利用稳态荧光和时间分辨荧光技术研究了该类查尔酮衍生物以及上述查尔酮修饰的环糊精衍生物与过渡金属离子间的相互作用。

Chalcone traditional synthesis methods with the use of organic solvents, so that reaction greatly increasing the product of the difficulty of post-processing work.

那位仁兄请帮忙翻译哈，不要在线翻译。传统的查尔酮合成方法由于使用了有机溶剂，使副反应大大增加，同时增加了产物的后处理工作难度。

In this dissertation, I will represent my studies on the nitration of Chalcone derivatives, reaction of epoxide ketone, and the aromatization of 3,5-disubstitued 2-isoxazolines with nitric oxide.

本文主要研究了：(1)NO与查尔酮及其衍生物的硝化反应，反应以较高的产率得到了a-硝基化合物；(2)NO对环氧酮的开环反应，反应生成了顺式羟基硝酸酯；(3)3，5-二取代的-2-异恶唑啉在NO作用下可以发生芳环化反应，生成了对应的2-异恶唑化合物。

The results show that, the chalcone moiety of this CD derivative was located in the less polar CD cavity in the aqueous solution and a"self-inclusion"complex was formed which gave a higher fluorescence emission.

并对上列体系在外界环境极性变化过程中多元配合物的形成和解离；不同醇类化合物因极性与尺寸上的差别而给包结行为带来的影响、进而显示出光谱行为的变化等进行了深入的研究和讨论。

The real-time quantitative PCR results showed that the expression level of two genes did not be affected by HHO obviously, whereas, the expression level of CHS gene had down regulation of different degree, except in 1.0 mM of HHO's concentration. It meaned that CHS gene is probably related with the metabolism of allelochemical.4. The Chalcone synthase gene (EaCHS1) of E.

荧光定量PCR的结果表明，萜类代谢途径中的两个关键酶基因的表达水平，没有因为羟基泽兰酮的诱导而表现出显著的差异；CHS基因的表达水平，除了在羟基泽兰酮处理浓度为1.0 mM时的差异不显著之外，在其他处理浓度均有不同程度的下调，说明该基因与化感物质的代谢途径相关。4。

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。