二酸的
- 与 二酸的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This thesis consists of four chapters:Chapter 1: Michael addition of chalcones with active methylene compounds such as diethyl malonate, ethyl acetoacetate and nitromethane catalyzed by potassium hydroxide in anhydrous ethanol results Michael adducts in 72-98% yield under ultrasound irradiation in 25-150min.
第一章:研究了超声辐射下,氢氧化钾催化的查耳酮与活泼亚甲基化合物如丙二酸二乙酯、乙酰乙酸乙酯和硝基甲烷的迈克尔反应。
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The free-radical addition reaction of malonic ester with a series of alkenes under the uniform conditions has been studied.
在相同反应条件下,进行一系列烯烃与丙二酸二乙酯的加成反应,求得产率与烯烃结构间的定量关系,即反S型曲线。
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The details and results are summarized below:(1)An ABC style three component cascade reaction of aromatic aldehydes, aromatic amines and diethyl malonic ester or cyclohexanone has been developed.
论文从苯炔和亚胺出发,设计并系统研究了4种新的多组分串联反应,主要内容和结果如下:(1)发展了一种芳醛、芳胺和丙二酸二乙酯或环己酮的ABC型三组分串联反应。
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All dates were analyzed by the principal component analysis through using the SIMCA-P 10.0 software. Result: The PCA demonstrated that the metabolome between treated group and control group had difference in rat urine sample after of 22 days administrated, for treated group 169 kinds of biomarkers were found including oxalacetic acid, malic acid, 2-ketoglutaric acid, NE, arachidonic acid, 5-HIAA and other compounds, the result was consistent with pharmacological effects of R.coptidis , such as antiinflammatory, inhibiting biosynthesis of CA biosynthesis, anti-central nerve and energy metabolism inhibition.
结果:给药22 d,黄连组与对照组大鼠尿样代谢组有较大差异,发现了169个生物标记物,其中可能的化合物为草酰乙酸、苹果酸、2-酮戊二酸、去甲肾上腺素、花生四烯酸、5-羟吲哚乙酸等物质,这与黄连抗炎、阻止儿茶酚胺的生物合成、抑制中枢神经、降低能量代谢的药理作用相一致。
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The compression heating characteristics of three pressure-transmitting fluids such as dioctyl sebacate,water and ethanol in high hydrostatic pressure processing were investigated via the on-line measurement of temperature by inserting the probe into the high-pressure cavity.
通过将温度探头伸入高压腔内在线测定了3种传压介质(癸二酸二辛酯、水、无水乙醇)的温度变化情况,研究它们在不同条件下的压致升温规律。
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Nylon 610 resin is polymerized of 1,6-hexanediamine and Sebacic acid by condensation polymerization. It has
产品概述 Introduction 尼龙610(Nylon 610)树脂由己二胺和癸二酸经缩聚制成,比尼龙6和66具有更高的柔韧性和透明度,更低的吸水率和密度。
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Tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively.
这比文献(Sawamoto et al, 1998)报道的由2-氯-2,4,4-三甲基戊二酸二甲酯(dimethyl 2-chloro-2,4,4-trimethylglutarate)/RuCl2(PPh3)/Al引发体系引发MMA聚合的方法制备α-H,ω-Cl-PMMA要简便。
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In addition, a further study was made of the technique of extraction, isolation and purification of GLA. The factional extraction used in the laboratory with n-hexane and ethanol was changed into the whole extraction of 6〓 solvent, which simplified production technique and reduced cost of production. The fungal lipid extracted from the fermentation in the medium-scale test was concentrated by the urea adducting method with methanol as solvent, at 75~80℃ for 3 hours. After GLA had been adducted twice, the content of GLA came up to 84. 25%, around a twelfth as much as the original concentration.
并对γ—亚麻酸的提取和分离纯化工艺进行了研究,将实验室中用正己烷和乙醇分步抽提的工艺改为用6〓溶剂一步抽提技术,从而简化了生产工艺,降低了生产成本;采用脲素包合法,以甲醇作为溶剂,温度控制在75~80℃,包合时间为3h,对中试发酵所提取的菌油进行了浓缩,γ—亚麻酸两次包合后,GLA含量达到84.25%,比原浓度浓缩了近十二倍。
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METHODS: The model of acute myocardial ischemia of rats was created by ligaturing the left coronary artery and followed with recording changes of EGG, the range of myocardial infarct and the levels of the AST, CK, LDH, SOD and MDA enzymes in blood serum to study the effects of gleditsioside on myocardial ischemia in rats.
采用结扎大鼠左冠状动脉的方法,造成急性心肌缺血模型,通过对大鼠标准Ⅱ导联心电图,心肌梗死面积及血清中天冬氨酸转氨酶、肌酸激酶、乳酸脱氢酶、超氧化物歧化酶和丙二醛的测定,探讨皂荚皂苷对大鼠心肌缺血的影响。
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The paper studied the semi-industrial test of extracting Vanadium pentoxide by the pelletization-rotary kiln roasting-low acid leaching-ion exchange technology from the Vanadium-containing kaolin.
对含钒高岭土进行了制粒-回转窑焙烧-低酸浸出-离子交换提取五氧化二钒的半工业试验,试验结果表明,回转窑焙烧过程钒的转化率达到74%以上,全流程五氧化二钒回收率达到71。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。