碳化

Spirodilactone s are a series of compounds with the structures of spiro carbon and lactone which result in the special physical and chemical characters of Spirodilactone s.

螺双内酯是一类含双内酯环和螺碳原子这一特定结构的化合物。这种特定螺双内酯结构决定了这类化合物具有特殊的物理和化学性质。本文主要综述了螺双内酯及衍生物的合成方法、衍生化反应、手性拆分以及在合成高分子领域的研究现状和进

The quantum mechanical calculation results suggested that the energetics of stereochemical control during the tricyclic Markovnikov cation deprotonation step could be affected by the inclusion of these enzymatic effects.

而量子力学的计算结果显示出酵素催化反应里所产生的种种效应都对在三环马可尼可夫碳阳离子的去质子化步骤中立体化学特性有重大影响。

Three types of dyes derived from crown ether benzotellurazole (including telluracarbocyanine, polymethine styryl dye and merocyanine dye) are formed by the methods analogous to non-crown ether dyes.

本文系统研究了冠醚苯并碲唑的各种合成方法，探讨了杂环的季铵化反应，并进一步制备了对称冠醚碲碳菁及冠醚苯并碲唑衍生的多甲川苯乙烯菁、部花青染料。

The hydrophobic core serves as a reservoir for water-insoluble drugs.Hence,these nanoparticles can be used as carriers for hydrophobic drugs.For the synthesis of cholesterol-modified glycol chitosan conjugates,a carboxyl group was initially introduced to cholesterol molecule using succinic anhydride,and then covalently coupled with the primary amino group of glycol chitosan in the presence of 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride and N-hydroxyl succinimide.

本文采用二步反应将胆固醇接枝到乙二醇壳聚糖，首先将胆固醇进行羧基化，将胆固醇与琥珀酸酐反应生成胆固醇半琥珀酸酯，然后用1-乙基-3-(3-二甲基氨丙基)碳二亚胺盐酸盐与N-羟基琥珀酰亚胺作为偶联剂，将胆固醇半琥珀酸酯的羧基与乙二醇壳聚糖主链的氨基进行反应，得到胆固醇疏水改性乙二醇壳聚糖共聚物。

The results from the study on characters of phosphorus section distribution show that there are obviously ascending of phosphorus content in the surficial sediments and pore water.

以密云水库为例，研究了水库沈积物中有机质的含量与有机磷的关系，表明表层沈积物中的总有机碳和有机磷的含量都明显高於底层，是由於一些以磷为营养素的富营养化指示藻类在水体中逐年增加，它们死亡后的残骸经分解－矿化后在底积物中累积的结果。

Microwave-assisted chemical functionalization of single-walled carbon nanotubes, with undecyl groups decomposed from lauroyl peroxides was reported.

本文报道了微波辅助下，利用过氧化月桂酰分解得到的十一烷基，化学功能化修饰单壁碳纳米管。

Our experiments took early maturing variety of"Qingfeng 103", medium maturing varieties of"Beilv"and"lvxiu"as the materials to research the relation between vernalization, carbon and nitrogen metabolize by studying the effect of different plant age on broccoli venalization, the effect of different light intensity on broccoli vernalization and the effect of sucrose on broccoli vernalization.

本试验以青花菜早熟品种&清风103&青花菜、中熟品种&倍绿&、&绿秀&青花菜为试验材料，通过青花菜不同生长状态对春化作用的影响、不同光照强度以及外源蔗糖对春化作用的影响等方面的研究，探讨了青花菜在春化启动时与其体内碳、氮代谢的关系，为研究春化作用及植物成花提供基础理论。

With the material of synthetic graphite and natural graphite, the product has high absorption rate and speed after high temperature graphtized treatment. It can be used to add carbon to melted steel or iron whilie smelting.

本产品采用人工或天然石墨，经高温石墨化处理而成，具有吸收率高、吸收速度快的特点，适用于钢、铁冶炼时，钢水的电炉内增碳。

This experiment takes the sweet potato leaf as the primary data, the white granulated sugar, and the corn syrup as the carbon source, and the active white liquor dry yeast as ferments the fluid , uses the liquid zymotechnics to brew the sweet potato leaf to incite the tonic , and discovers the most superior saccharification condition through the contrast experiment.

试验以红薯叶为主要原料，以白砂糖、玉米糖浆为碳源，以活性白酒干酵母为发酵液，采用液体发酵法酿造红薯叶滋补酒，并通过对比试验找出最优糖化条件：浸提温度80℃，浸提时间2h，加水比1：40。

We drawed a conclusion that both aboveground and belowground soil carbon input were critical to soil available nitrogen concentration, but they showed no relation with soil nitrogen net mineralization rate.

我们的结论是：土壤地上地下碳输入是影响土壤有效氮库储量的重要因素，但与土壤氮净矿化速率没有直接联系。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。