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In order to know more about the microcosmic structure of the important biochemical model molecule formamide in aqueous solution, the Optimized Potentials for Liquid Simulations-All Atom model were used in the molecular dynamics simulation for the aqueous solution of FM in the whole concentration range. The radial distribution functions of the solutions were obtained. The interaction between water molecule and FM molecule was analyzed and calculated.

为了解重要的生化模型甲酰胺在水溶液中的微观结构,采用全原子力场在全浓度范围内对甲酰胺溶液进行了分子动力学模拟,得到了溶液的径向分布函数,分析计算了溶质和溶剂分子间的相互作用,对甲酰胺和水分子的氢键缔合情况进行了分析。

The study indicated that Ge had distinct analgesic effect.2. Irritation action of rats stimulated by haemostat inhibited and the energy metabolism of mice decreased after ip Ge total alkaloids.

钩吻总碱能抑制大白鼠由止血钳刺激所致的激怒反应,降低小白鼠机体的能量代谢,并且能协同闽下剂量的水合氯醛对小白鼠的催眠作用。

The kinetic energy mainly comes from system kinetic energy transmission and wind divergence, that is, the level of divergence of kinetic energy transmission and wind through the isobar kinetic energy created by cyclonic vortex can be made strengthened.

同时,中上层正涡度的水平平流随高度增加导致了垂直运动增强,由垂直平流造成的正涡度由低层向高层输送导致了中层短波槽加深,反过来又有利于低层辐合的增强,对MCV的形成和发展起到了间接的作用。

According to the experiment results of degradation in field, degradation mechanism of the biodegradable mulch film can include four stages: the first, the material surface appeared deficiency while the surface area and interstice increased of material in the action of natural environment and microorganism; the second, along with the surface area and interstice of material increased and the gap strengthened, the chemical chain of the high polymer's principal chain broke as a result of the hydrolysis or the enzymatic effect in the action of hydration, causing the molecular weight and mechanics function descended; the third, the molecular of high polymer split the low polymer after its physical mechanical function descended, the material decomposed the fragments, the mass defect intensified; the fourth, the low polymer of fragments form in the natural environment, the microorganism, the biological enzyme became the smaller fragments, thus absorbed by the phagocytes, or further turn into CO2 and H2O due to hydrolysis.

根据田间降解试验结果推测,生物全降解地膜的降解机理可能包括四个阶段:第一,在自然环境、微生物作用下,材料表面出现缺陷,同时表面积增大、空隙增多;第二,随着材料表面积的增大、空隙的增多,吸水性增强,在自水合作用下,高聚物主链由于水解或酶解而使化学链断裂,导致分子量和力学性能下降;第三,在其物理机械性能下降后,高聚物分子链断裂为低聚物分子,材料裂解为碎片状,质量损失加剧;第四,碎片状低聚物在自然环境、微生物、生物酶作用下进一步水解变成尺寸更小的碎片,从而被吞噬细胞吸收,或进一步水解,生成CO2和H2O。

The optimization of ferment, preparation of immobilized cells, optimization of bioconversion and extraction of nicotinamide were studied in this paper.

本论文中主要研究烟腈水合酶发酵工艺的优化、固定化细胞的制备、固定化细胞生物转化烟腈生产烟酰胺的工艺优化、烟酰胺的提取工艺。

Seven central depressants,including chloral hydrate,potassium bromide,sodium bromide,cal- cium bromide,alcohol,amytal and chloretone, were studied for their effects on the intraperito- neal toxicity of tartar emetic and sodium stibo- gluconate in mice.

1。关于吐酒石与葡萄糖酸锑 V 钠对小白鼠的致死作用,我们探索了一些中枢抑制药与兴奋药的影响。所试的抑制药有水合氯醛,溴化钾,溴化钠,溴化钙,酒精,安眠妥与三氯叔丁醇七种。兴奋药有苯甲酸钠咖啡硷与士的宁二种,以及溴咖合剂。2。

The crystallinity of WO3 has strong influence on samples' performance. When WO3 is tungstite or amorphous, the TiO2-WO3 composites have no or quite low energy storage capacity. The energy storage capacity is improved with the crystallinty of WO3 increasing.

且WO3的结晶度对材料储能性有一定的影响:WO3为水合态或结晶度很低时,材料几乎没有光催化储能性;随着结晶度的增强,储能性提高;TiO2-WO3的储能性能最高达到0.83×10-3C·mg-1;结晶度过高,储能性反之降低。

And take six aquation hydrogen nitrate zinc as raw material , add the ammonium sulphate being unlike thickness respectively, the method adopt a microwave to heat comes to the preparation zinc oxide , discuss with sulfuric acid ion concentration changing to zinc oxide structure and shape appearance effect.

以六水合硝酸锌为原料,分别加入不同浓度的硫酸铵,并采用微波加热的方法来制备氧化锌,探讨随着硫酸根离子浓度的改变对氧化锌结构及形貌的影响。

We love airy, instantly absorbed hydrators, such as The Body Shop Moroccan Rose Body Milk,$16.50, chock-full of rose, ses-ame seed, olive and babassu oils.

我们喜欢通风的感觉,使你的身体充分的感到水合作用,就如你的美体全身铺满摩洛哥玫瑰身体乳,价值为$ 16.50 ,里面充满玫瑰精华,芝麻种子,橄榄树和婴儿般的护肤油。

The reaction of carbodiimide 14 with various neucleophiles was investigated. The selectivity of cyclization of the carbodiimide 14 with NH_3, RNH_2, R_2NH and NH_2NH_2 were studied, some of the gualidene-type intermediates were isolated and the possible mechanism was suggested.

探讨了碳二亚胺14与各种亲核试剂如NH_3、RNH_2、R_2NH以及水合肼的成环反应的选择性,并分离得到了部分胍中间体,提出了反应可能的机理,对反应的选择性进行了合理的解释。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。