探讨了磺酸钙基脂晶型转化的反应机理,分析了不同活性氢物质作转化剂对晶型转化的影响。
The crystal transforming mechanism of calcium sulfonate grease was discussed, and the effect of different active hydrogen substances as transforming agents on crystal transform was analyzed.
与水、活性氢、醇、酚、胺、酰胺、羧酸、烯烃、醛、酮、酯加成得到的新化合物,可作脱水剂和氧化剂使用。
Many new compounds can be obtained by addition with water, hydrogen, alcohols, phenols, amines, amides, carboxylic acids, olefins, aldehydes, ketones, esters, etc.
综述了近年来关于煤液化反应中氢气的作用及供氢机理方面的研究成果,并介绍了提高煤液化中活性氢的方法。
The effect of hydrogen and the mechanism of hydrogen-donor of coal liquefaction in recent years are reviewed. The measures to improve activity of hydrogen are also introduced briefly.
苯并二氢吡喃具有类维生素A的生物活性。
MAP的抗偏头痛药物的活性成分,代号为MAP0004,是双氢麦角胺,已经在医院中作为静脉用药用于治疗严重的偏头痛近60年。
The active ingredient in MAP's migraine drug, known as MAP0004, is dihydroergotamine, which has been used intravenously for 60 years by hospitals for treating severe migraines.
双氢青蒿素是青蒿素类药物中活性较强的衍生物。
Dihydroartemisinin is one of the derivatives with higher activity.
去年,这个研究小组证明了氢能消除水中活性氧并能使中风对脑的损伤减轻一半。
Last year, the team confirmed that hydrogen removes active oxygen from water and can halve brain damage from strokes.
二氢杨梅素抗氧化活性优异,其作用机制是通过螯合金属离子,从而消除其对自由基氧化的催化作用。
Dihydromyricetin has excellent antioxidant activity. Its antioxidant activity embodies by chelating metal ion and clear the catalysis to free radical oxidation.
对氧碱木质素进行氢解后,经基比例明显提高,更有利于提高合成高分子材料的反应活性。
After hydrogenolysis of wheat alkali-oxygen lignin, the lignin has more hydroxyl, which can easily promote the reaction activity of synthesis of macromolecular material.
比较了六水三氯化铁、五水四氯化锡和一水硫酸氢钠催化合成橙花素的催化活性。
Compared the catalytic activity of ferric chloride hexahydrate, stannic chloride pentahydrate and sodium bisulfate monohydrate for synthesis of nerolin bromelia.
这是因为在活泼氢和催化剂活性中心之间有链转移反应发生。
This is due to the chain transfer reaction between the active hydrogen and the active centers of the catalyst.
对用电沉积法获得镍-硫化镍复合沉积层作碱性溶液中析氢活性阴极材料的可能性进行了研究。
This paper studies the possibility of using nickel-nickel sulfide composite coating obtained by electrodeposition as the active cathode material for hydrogen evolution reaction in alkaline solution.
结果表明,硫酸氢钠的催化活性良好。
采用加热预处理的厌氧活性污泥为接种物,对凤眼莲进行发酵产氢研究。
The hydrogen production from hyacinth inoculated with preheated anaerobic active sludge by fermentation was studied.
肝线粒体分离后以氢电极法测定其呼吸活性。
Hepatic mitochondria were isolated and mitochondrial respiratory activity was assayed in a Clark oxygen electrode.
新型1,2,3,4 -四氢异喹啉类化合物的合成及抗真菌活性研究。
Synthesis of novel 1, 2, 3, 4-tetrahydroisoquinolines and study of their anti-fungal activities.
尤其是二氢吡啶作为动物体中重要的还原性辅酶NADH的活性部分更是赋予了二氢吡啶重要的生物学方面的意义。
Their biological significance has been greatly recognized since they are discovered to be the active part of NADH, the essential reducing coenzyme in animals.
结论硫酸氢钠为催化剂,分离方便,副反应少,催化活性高。
Conclusion: Sodium bisulfate as a catalyst is characterized by high activity and less assistant reaction, and can be easily broken down.
青蒿素衍生物的主要活性代谢产物是二氢青蒿素。
Dihydroartemisinin is the main active metabolite of artemisinin derivatives.
结论消化道碳水化合物酶活性、细菌的定植状态、胃排空能力、肠蠕动能力均与呼气氢浓度有关。
Conclusion Carbohydrate digestive enzyme activity, bacterial growth, gastric emptying function and vermiculation ability related to expiratory hydrogen concentration.
结果证明,球形催化剂DQ -1是一种球形规整、活性高、定向能力高、具有良好的氢调性能及优良的共聚合性能的高效催化剂。
DQ-1 catalyst is a high activity catalyst for propylene polymerization and co-polymerization. It is completely spherical with high stereoregularity, and high sensitivity towards hydrogen regulation.
结果表明,镍-钴-磷合金具有较高的析氢催化活性,有利于降低槽压,减少能耗。
Nickel - cobalt - phosphorus alloy was proved with high catalytic activity of hydrogen evolution which can reduce the bath voltage and energy loss during electrolysis of sodium chloride.
微波辐射法所得催化剂对氢-水液相交换反应有更高催化活性;
The catalysts obtained from microwave heating method had higher catalytic activity for hydrogen-water liquid exchange reaction than those for the impregnation-reduction method.
该催化剂必须要兼顾高的裂化活性及适度控制的氢转移功能。
This catalyst has to ensure high cracking ability whistling reasonably inhibit on H-transfer reaction activity.
用氨合成催化剂性能评价装置,研究了反应温度、压力、空速和氢氮比对以活性炭为载体的钌基氨合成催化剂活性的影响。
The influences of temperature, pressure, space velocity and ratio of hydrogen to nitrogen on the activity of ruthenium based ammonia synthesis catalyst were investigated.
该催化剂具有较高的活性、活性稳定性和较低的耗氢量。
The catalyst is characterized by higher activity and stability as well as lower hydrogen consumption.
比较了各种不同的表面活性剂胶束体系对反应的影响情况和途径,表明胶束可以作为一种有效的反应介质研究氢负离子的转移反应。
The results are discussed by comparing the different effects of micelles on this reaction, which show that the micelle can be applied on the hydride transfer reaction as an effective reaction medium.
简要考察了不同活性组分对合成四氢吡咯的影响。
Briefly investigated the effect of different active component on synthesizing pyrrolidine.
通过采用铂催化剂催化低含氢硅油与烯丙基聚醚的硅氢加成反应合成了有机硅聚醚表面活性剂。
Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.
通过采用铂催化剂催化低含氢硅油与烯丙基聚醚的硅氢加成反应合成了有机硅聚醚表面活性剂。
Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.
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