• 探讨了磺酸基脂转化反应机理分析了不同活性物质作转化剂晶型转化的影响

    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.

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  • 活性氢酰胺羧酸烯烃加成得到化合物,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.

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  • 综述近年关于液化反应中作用机理方面的研究成果,介绍了提高煤液化中活性方法

    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.

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  • 苯并二喃具有类维生素A生物活性

    Chroman has retinoid-like biological activity.

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  • MAP偏头痛药物活性成分,代号MAP0004,麦角胺,已经医院作为静脉用药用于治疗严重偏头痛60

    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.

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  • 青蒿青蒿素类药物中活性衍生物

    Dihydroartemisinin is one of the derivatives with higher activity.

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  • 去年这个研究小组证明消除水中活性使中风损伤减轻一半

    Last year, the team confirmed that hydrogen removes active oxygen from water and can halve brain damage from strokes.

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  • 杨梅抗氧化活性优异作用机制是通过螯合金属离子从而消除自由基氧化催化作用。

    Dihydromyricetin has excellent antioxidant activity. Its antioxidant activity embodies by chelating metal ion and clear the catalysis to free radical oxidation.

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  • 对氧碱木质素进行,经基比例明显提高有利于提高合成高分子材料反应活性

    After hydrogenolysis of wheat alkali-oxygen lignin, the lignin has more hydroxyl, which can easily promote the reaction activity of synthesis of macromolecular material.

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  • 比较六水三氯化铁、五水四氯化一水硫酸催化合成橙花素催化活性

    Compared the catalytic activity of ferric chloride hexahydrate, stannic chloride pentahydrate and sodium bisulfate monohydrate for synthesis of nerolin bromelia.

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  • 是因为活泼催化剂活性中心之间转移反应发生

    This is due to the chain transfer reaction between the active hydrogen and the active centers of the catalyst.

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  • 用电沉积获得镍-硫化复合沉积层碱性溶液活性阴极材料可能性进行了研究。

    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.

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  • 结果表明,硫酸的催化活性良好。

    It shows that sodium bisulfate is active.

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  • 采用加热预处理的厌氧活性污泥接种物,对凤眼进行发酵研究

    The hydrogen production from hyacinth inoculated with preheated anaerobic active sludge by fermentation was studied.

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  • 线粒体分离电极法测定呼吸活性

    Hepatic mitochondria were isolated and mitochondrial respiratory activity was assayed in a Clark oxygen electrode.

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  • 新型1,2,3,4 -四喹啉类化合物的合成真菌活性研究

    Synthesis of novel 1, 2, 3, 4-tetrahydroisoquinolines and study of their anti-fungal activities.

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  • 尤其是二吡啶作为动物体中重要还原性辅酶NADH活性部分更是赋予了二吡啶重要生物学方面的意义。

    Their biological significance has been greatly recognized since they are discovered to be the active part of NADH, the essential reducing coenzyme in animals.

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  • 结论硫酸催化剂,分离方便,副反应,催化活性

    Conclusion: Sodium bisulfate as a catalyst is characterized by high activity and less assistant reaction, and can be easily broken down.

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  • 青蒿衍生物主要活性代谢产物青蒿

    Dihydroartemisinin is the main active metabolite of artemisinin derivatives.

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  • 结论消化道碳水化合物活性细菌的定植状态、排空能力、肠蠕动能力均与呼气浓度有关

    Conclusion Carbohydrate digestive enzyme activity, bacterial growth, gastric emptying function and vermiculation ability related to expiratory hydrogen concentration.

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  • 结果证明,球形催化剂DQ -1一种球形规整、活性、定向能力高、具有良好的调性能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.

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  • 结果表明,--合金具有较高催化活性有利于降低减少能耗

    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.

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  • 微波辐射所得催化剂-水液相交换反应更高催化活性

    The catalysts obtained from microwave heating method had higher catalytic activity for hydrogen-water liquid exchange reaction than those for the impregnation-reduction method.

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  • 催化剂必须兼顾裂化活性适度控制的转移功能。

    This catalyst has to ensure high cracking ability whistling reasonably inhibit on H-transfer reaction activity.

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  • 合成催化剂性能评价装置,研究了反应温度压力空速比对活性炭为载体基氨合成催化剂活性影响

    The influences of temperature, pressure, space velocity and ratio of hydrogen to nitrogen on the activity of ruthenium based ammonia synthesis catalyst were investigated.

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  • 催化剂具有较高活性活性稳定性较低量。

    The catalyst is characterized by higher activity and stability as well as lower hydrogen consumption.

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  • 比较各种不同表面活性胶束体系反应影响情况和途径,表明可以作为一种有效的反应介质研究负离子转移反应。

    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.

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  • 简要考察不同活性组分合成吡咯影响

    Briefly investigated the effect of different active component on synthesizing pyrrolidine.

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  • 通过采用催化剂催化硅油烯丙基加成反应合成有机硅聚醚表面活性

    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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  • 通过采用催化剂催化硅油烯丙基加成反应合成有机硅聚醚表面活性

    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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