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Eight hydrazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, 2-hydroxy-1-naphthaldehyde with nicotinic or isonicotinoyl hydrazide in anhydrous ethanol respectively; Three thiosemicarbazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, o–hydroxyacetophenon with thiosemicarbazide in hydrous-ethanol respectively.

主要包括以下五部分的工作: 1、以水杨醛、邻香草醛、邻羟基萘甲醛、邻羟基苯乙酮分别与烟酰肼和异烟酰肼按1:1的比例在无水乙醇中反应,制备了八种酰腙类Schiff碱;以水杨醛、邻香草醛、邻羟基苯乙酮与氨基硫脲在水-乙醇混合溶剂中反应,合成了三种Schiff碱配体,并对Schiff碱配体的结构进行了表征。

Using 1,3-dicyanobenzene as a precursor, we have obtained two coordination polymer of rare earth metal bridged by isophthalato ligand, Eu complex (4) and Sm complexe coordinated (5). X-ray single crystal diffraction investigation confirms that complex 4 and 5 are isomorphous with near isostructural 〓 unit.

以1,3-苯二氰为前体,合成了两个新的稀土金属与间苯二甲酸根配体桥联的聚合物:间苯二甲酸根配体配合的铕和钐化合物,4和5.X-射线衍射结构分析表明化合物4和5均具有〓基本结构单元且两者结构类似。

There are a numbers of the osmiophilic substance in the plastids of secretory cell in the secretory phase in the peltate hairs and the place of synthesis of lipoid substance can be considered to be in the plastids.

观察发现,在盾状腺毛处于分泌期的分泌细胞的质体中存在大量的嗜锇物质,推测质体可能是脂类物质的最初合成场所。

According to the characters of turbidite sand body of Niuzhuang subsag, such as thin reservoirs, deep embedding, unstable distribution, high concealment and etc, and based on expatiating on the principle, method and key technique of the log constrained inversion, this paper summarized the inversion experiments fitting for the reservoir exploration, including multifactor calibration of synthetic seismogram, the found of original impedance and the choice of inversion method.

针对牛庄洼陷浊积砂体具有储层薄、埋藏深、分布不稳定、隐蔽性强等特点,在阐述测井约束反演原理、方法及关键参数的基础上,总结出包括合成记录在内的多元标定、初始阻抗的精细建立和反演方法的选择等方面的反演经验,并在实际应用中取得了良好的效果,为其他地区浊积砂体的储层预测及描述提供了借鉴经验。

DPU at a concentration of as low as 10^(-7)mol/L retained the chlorophyll of Spirodela half-fronds under long-day conditions. From 10^(-5)~2×10^(-4)mol/L it prompted the synthesis of chlorophlly and the serine: glyoxylate aminotransferase activity, increased dry weight, and retarded the senescence of half-fronds.

在长日照条件下,10^(-7)mol/L的二苯脲对紫萍半叶状体就有保绿的作用,10^(-5)~2×10^(-4)mol/L的二苯脲还可以明显地促进叶绿素的合成和干重的增加,提高丝氨酸:乙醛酸转氨酶的活性,延缓半叶状体的衰老。

in order to probe into whether glycine supplementation plays an adjusting role in sports performance and immune functions, the authors divided 30 mice randomly into an exhaustive exercising group (e1), glycine supplemented exhaustive exercising group (e2) and a normal resting control group, with 10 mice in each group, supplemented glycine to mice in group e2 and physiological saline to mice in the other two groups, let mice in groups e1 and e2 do an exhaustive swimming exercise 4 weeks later, applied the trace ch50 hemolysis method to analyze supplement activity, applied the mtt method to perform a quantitative analysis on the lymphopoiesis ability of spleen, and thus revealed the following findings: compared with mice in group e1, the time taken by mice in group e2 to swim to an exhausted state is significantly longer (p.05); total supplement activity in blood serum of mice in group e1 is significantly lower than the same of mice in group s (p<0.01), and total supplement activity in blood serum of mice in group e2 is significantly higher than the same of mice in group e1 (p.01), but still significantly lower than the same of mice in group s (p.05); as observed from the test of the lymphopoiesis ability of spleen, the lymphopoiesis ability of spleen of mice in group e1 is significantly lower than the same of mice in group s, and the lymphopoiesis ability of spleen of mice in group e2 is significantly higher than the same of mice in group e1, but still significantly lower than the same of mice in group s.

四型肽精氨酸脱氨酶在类风湿性关节炎。。。以马来酸酐与氨水为原料热缩聚法合成。。。摘要:为探讨甘氨酸补充对运动能力及免疫功能是否具有调节作用,将30只小鼠随机分成力竭游泳运动组(e1)、甘氨酸补充后力竭游泳组(e2)和静息正常对照组,每组10只。在e2组补充甘氨酸,其余两组给予生理盐水,处理4周后,e1组和e2组均做力竭性游泳运动。采用微量ch50溶血法分析补体活性,采用mtt法定量分析脾脏淋巴细胞增殖能力。结果显示,与e1组比较,e2组游泳至力竭的时间显著延长(p<0.01)。e1组血清总补体活性显著低于s组(p<0.01),e2组显著高于e1组(p.01),但仍显著低于s组(p.05)。在脾脏淋巴细胞增殖试验中观察到,e1组显著低于s组,e2组显著高于e1组但仍显著低于s组。

It was important that the thixotropic agent,surface active agent and solid lubricating agent are added,the surface of magnetizable particles were suitable treated,at the same time,the stability and lubricating property of MRF were analyzed and discussed.

通过触变剂与表面活性剂复合使用,同时对磁性悬浮相表面进行适当的处理,并加入适当的固体润滑剂合成了一种稳定性和润滑性能良好的磁流变体材料,该磁流变体材料性能为:0η≤1000mPa.s,τ0.5T≥60kPa,半个月内无明显沉降,无板结,"四球机法"测量其润滑性能为磨斑直径。75mm,该类型磁流变液用于磁流变阻尼器200万次振动试验取得了理想的试验效果。

The results show that lipid in megagametophyte is preferentially used during germination than lipid from embryo or seedlings and starch accumulation in cotyledon and hypocotyl functioned as temperate storage material.

在子叶中细胞质和质体果糖1,6二磷酸酶的活性都明显高于下胚轴,根和未萌发胚中细胞质和质体果糖1,6二磷酸酶的活性极低,表明子叶和下胚轴进行活跃的蔗糖和淀粉合成活动。

In 50L fermentor, the metabolic characteristics of carbohydrate, DO, NH〓-N and dissolved phosphorus, cell growth and CTC biosynthesis were analyzed intensively. It was put forward that the cell growth on the initial stage of fermentation must be controlled properly in order to achieve the goal of fermentation process optimization.

研究了50升发酵罐中CTC发酵过程的糖、氧、氮和磷的代谢特性以及菌体生长和金霉素合成的规律,并提出通过在发酵前期控制菌体生长的方法来达到过程调控和优化的目的。

This paper summarizes the development of proplastid,lay stress on the synthesis relativity between plastid and lipid.

阐述了能源植物前质体的发育,着重介绍了质体与脂类合成相关性等方面的研究进展。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。