查询词典 methylating

To study the performance of inorganic composite catalyst for the SPC oxidation of p-methyl anisole, Cu2-Co2-KBr is used as catalyst of sodium percarbonate oxidation for p-methyl anisole synthesized by paracresol methylating. Effect of reaction conditions, such as the factors of catalyst composition, catalyst quantity, solvent, reaction temperature and time on oxidation of p-methyl anisole, is investigated.

研究了无机复合催化剂催化SPC氧化对甲基苯甲醚的反应性能：以Cu2-Co2-KBr为催化剂，利用过碳酸钠氧化对甲酚甲基化产物对甲基苯甲醚，系统研究了催化剂组成比例、催化剂用量、溶剂、反应温度、反应时间等因素对反应的影响。

Dimethyl N-cyanodithioiminocarbonate was facilely synthesized from calcium cyanamide, sodium carbonate and carbon disulfide, using dimethyl sulfate as a methylating agent in aqueous phase with an overall yield of 72% and purity of 99%.

用氰氨化钙、碳酸钙和二硫化碳等为原料，硫酸二甲酯为甲基化试剂，采用水相合成工艺制得荒酸二甲酯，总收率72%，纯度99%。

Effects of temperature, reaction time, methylating agent, solvent, molar ratio of nitromethane and carbon bisulfide on yield of 1,1-bis-2-nitroethane were discussed.

考察了反应温度、反应时间、甲基化试剂、溶剂、投料比等对于反应产物的影响，得到优化工艺条件为：反应温度35℃，反应时间3h。

DNA methylating inhibitor has been used in the study of epigenesis that caused by DNA methylation of plants.Also,it can be instead of low temperature treatment to induce flowering of plants,make flowering time earlier than usual.Further study and application in the improvement of plants will be continued.

DNA甲基化抑制剂已被用于因DNA甲基化引起的植物表观遗传研究中，同时它可以代替低温促进植物提早开花，并可能在植物性状改良中得到进一步的研究和应用。

This article summarized the development of molecular mechanism and application of DNA methylating inhibitor in plants.

本文综述了DNA甲基化抑制剂作用机理及其在植物发育生物学研究中的应用。

The synthesis of monomethylhydrazine was investigated with dimethyl phosphite as methylating agent.

以亚磷酸二甲酯为甲基化试剂，一步合成了单取代的一甲基肼。

"Acetylating H3K4 and demethylating H3K9 can actiate a gene; deacetylating H3K4 and methylating H3K9 can silence it," Karpen explains."Multiply modified at arious locations, these histones are a major factor in changing the functions of chromatin, independent of DNA sequence."

&H3K4的乙酰化和H3K9的去甲基化使基因活化；而H3K4去乙酰化和H3K9的甲基化则使基因沉默，& Karpen讲解道，&组蛋白的多部位多重调节是改变染色质功能的主要因素，并与DNA的序列无关&

In the paper, ab initio quantum chemical was used to studying the methylating of NA bases in detailed.

本文采用量子化学从头算方法重点研究了核酸碱基的甲基化情况。

We think it's because the enzymes are being pulled in by the histones, and methylating the DNA right nearby.

我们认为，那是因为酶被嵌进了组蛋白之间，且就近甲基化DNA。

Formaldehyde, methanol and methane have been utilized as methylating agents.

甲烷、甲醇和甲醛可用作反应的甲基化试剂。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。