查询词典 cationic

The influences of the amount of triethylenetetramine, temperature, molar ratio of epichlorohydrin and dimethylamine, and reaction time on the viscosity and cationic degree of the polyamine flocculants were investigated. Then the influence of pH value, flo-cculant dosage and temperature on flocculation effect were studied.

研究了三乙烯四胺添加量、反应温度、n∶n、聚合时间等因素对聚合物黏度和阳离子度的影响，并考察了该聚合物用于造纸废水处理时，体系pH值、絮凝剂用量对絮凝效果的影响。

The 3propanesulphonic acid was separated by cationic exchange resin,and its content was determined with electrometric titration .

先用离子交换树脂处理合成3-丙基磺酸的反应液，再用电位滴定法准确定量产物MOPS。

Gold nanoparticles was self-assembled onto a platinum electrode to form a negatively charged surface, and cationic dye-thionine was linked by Au—S and Au—N covalent bond and electrostatic adsorption as an electron transfer mediator.

在铂电极上自组装一层纳米金，构建负电荷的界面，然后通过金-硫、金-氮共价键合作用和静电吸附作用自组装一层阳离子电子媒介体硫堇。

Each starch reagent has its own mode of action on mineral surface, such as primary starch mainly by hydrogen bond, cationic starch by the co-action of hydrogen bond and electrostatic force (for minerals with negative charge on its surface), while carboxymethyl starch, hydroxamic acid starch and dialdehyde starch principally by chemical force accompanied with hydrogen bond and electrostatic force in part. Such chemical forces ensure the close adsorption of reagent on diaspore surface and enforces the hydrophilic of mineral surface. Also the branched chain enable the starch to cover the collector adsorbed on mineral surface, so as to depress diaspore furthermore.

不同淀粉药剂在矿物表面表现不同作用，原淀粉主要是氢键的作用，阳离子淀粉是氢键和静电力的共同作用，羧甲基淀粉、羟肟酸淀粉和双醛淀粉离子性药剂与矿物间的作用除了氢键、静电力外，更重要的是与矿物表面金属离子间产生的化学作用，使药剂能牢固地吸附在一水硬铝石矿物表面，增加矿物表面的亲水性，同时，淀粉支链结构的存在，使它能够掩盖吸附的捕收剂，达到抑制一水硬铝石的目的。

Objective To investigate T-bet mRNA expression on peripheral blood mononuclear cells and its relations with allergen specific IgE, eosinophile cationic protein levels, and allergic symptom in patients with allergic rhinitis.

目的 探讨变应性鼻炎患者中外周血单核细胞中T-bet mRNA的表达及其与特异性IgE、患者症状和嗜酸性粒细胞阳离子蛋白的关系。

The changes on the clinical symptom,eosinophile cationic protein,eosinophile granulocyte and immunoglobulin E were compared between two groups.

比较各组患儿临床症状改善情况以及干预结束后对血嗜酸性粒细胞阳离子蛋白、血嗜酸性粒细胞以及血总IgE水平的影响。

First production of 10,000 tons annual capacity reagent resin, 5,000 tons of activated reagent, cationic etherification agents and oil additives several major series, a number of brand products.

先生产年产10000吨树脂显色剂、5000吨活性白土显色剂、阳离子醚化剂和油品添加剂几大系列、多个品牌的产品。

Meanwhile, the dosages of etherification agent and alkali influencing on degree of substitution and reaction efficiency are discussed. The optimal alkali catalyst dosage (1%) is determined in the process of preparing cationic starch.

同时讨论了醚化剂用量和碱的用量对取代度和反应效率的影响，确定了合成阳离子淀粉反应的最佳碱催化剂用量为1%。

The eucalyptus pulp was grafted by cationic monomer of methacryloyloxy ethyl trimethylammonium chloride under microwave irradiation.

摘 要：微波辐照下采用甲基丙烯酰氧乙基三甲基氯化铵接枝共聚制备改性桉木浆。

The effect of cationic comonomer methacryloyloxy ethyl trimethylammonium chloride on the rate of polymerization,the dissolvability of polymer in THF,the stability and pH value of methyl methacrylate/butyl acrylate/DMC soap-free emulsion were studied systematically.

研究了阳离子型共聚单体甲基丙烯酰氧乙基三甲基氯化铵的用量对甲基丙烯酸甲酯/丙烯酸丁酯/DMC 无皂乳液聚合速率、聚合物在THF中的溶解性、乳液稳定性及pH值的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。