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The non-isothermal kinetic data were analyzed with the Achar equation, Coats-Redfern equation, Kissinger equation, Flynn-Wall-Ozawa equation and Starink equation.The mechanism function and kinetic parameters of the thermal decomposition in the third step were obtained.The chemical reaction mechanism (F3) controlled the third thermal decomposition process.The apparent activation energy and the pre-exponential factor were 351 kJ·mol-1 and 2.57×10 30s-1 respectively.

采用Achar方程、Coats-Redfern方程、Kissinger方程、Flynn-Wall-Ozawa方程和Starink方程对非等温动力学数据进行了分析,得到了第3步热分解反应的机理函数、动力学参数和热分解反应动力学方程,其热分解反应过程受F3机理控制,表观活化能为351 kJ·mol-1,指前因子为2.57×

Efaroxan 10 μmol· L^-1 inhibit proliferation effect of agmatine on neural stem cell.

结果从新生大鼠海马分离得到的细胞可以持续分裂增殖形成细胞克隆;胍丁胺1、10μmol·L^-1可以显著促进神经前体细胞的增殖,并且这种促增殖作用可以被依法克生所抑制。

Seeds were germinated at eleven salinities (0,20,40,60,80,100,120,140,160,180,200 m mol/L NaCl) and germination percentage, rate of germination, as well as seedling growth were measured to detect the differences amang three cultivarscline.

在0,20,40,60,80,100,120,140,160,180,200m mol/L浓度NaCl胁迫条件下,研究了发芽率、发芽指数,并比较分析了胚根、胚轴生长状况。

All transition states in the assisted aminolysis are 35—70 kJ/mol lower than those for the non-assisted reaction.

研究结果还表明:水分子的参与有利于N-甲基b-磺内酰胺的氨解反应,它能够大大的降低反应能垒,降低值约为35—70 kJ/mol。

AIM:To study the protective effects and mechanism of Ligustrazine against damage and apoptosis in human umbilical vascular endothelial cells induced by 160 μ mol/L arachidonic acid.

目的:研究川芎嗪对花生四烯酸(160 μ mol/L)诱导的血管内皮细胞损伤和凋亡的保护作用及其机制。

Among the four species of ground cover, the light saturation point and light compensated point of Ardisia japonica was the highest, and the value was 645 and 202 u mol/m2s, respectively, while the light compensated poin of Belamcanda chinense was the lowest.

四种地被植物中,紫金牛的光饱和点与补偿点最高,分别为645与202μmol/m~2s,金叶过路黄、多花筋骨草与射干依次减小,光补偿点以射干为最低。

An optimized PCR reaction system for ISSR analysis was established:PCR was performed in a 20μl reaction mixture with 5μmol/L DNA, 2.5mmol/L Mg~(2+), 0.3mmol/Lof each dNTP, 300nmol/L primer, 1U Taq polymerase and 1×Buffer. Using 9 ISSRprimers,the genetic diversity among 23 Arrhenatherum elatius L.

3遗传多样性研究结果表明:通过模板DNA、引物、Mg~+、dNTPs、Taq酶五种ISSR反应体系的影响因素进行L_(16)(4~5)正交试验,建立了高燕麦草ISSR反应体系:20μl的反应体积中含有模板DNA 5μmol/L,引物300nmol/L,Mg~+2.5mmol/L,dNTP 0.3mmol/L,Taq酶1U及1×Buffer。

The simplified peseudo-first-order kinetic model for hydrolyzation of benzal chloride was proposed according to the character of hydrolyzation reaction and the apparent reaction rate constant and activity energy was obtained. The activity energy is 17.73KJ/mol in the temperature range from 900C to 1100C and the model values and experimental values tally well.

根据水解反应的特点,提出了简化的苄叉二氯水解反应拟一级动力学模型,经参数估计,得出了水解反应的宏观反应速率常数和活化能,在900C~1100C温度范围内,反应活化能为E1=17.73kJ/mol,模型计算值与实验值吻合较好。

The resin with I_1 as photoinitiator possessed much higher sensitivity with a threshold energy 2.02 mW at the concentration of 0.05 mol% compared to that of 12.72 mW for benzil.

含有0.18 mol% II_1的树脂在1000μm/s扫描速度下,仅用2.53 mW的激光能量即可聚合成连续的线。

Under the steady state assumption, equilibrium concentration of benzo pyrene in air is very low (1. 3×10〓mol/m〓) with almost all of the chemical absorbed on particles.

稳态条件下,气相中苯并芘的平衡浓度相当低,仅1.3×10〓mol/m〓,且在气相中几乎所有的物质都吸附在颗粒物上,以气态形式存在的量微不足道。

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What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢?

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

Oh, and I bought myself a new laptop," he said."

哦,我还给我自己买了一个新笔记本"他说。"