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离子结构

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Instructed by this method, the structure-reactivity relation of the oxidation reaction catalysts was found and a way was proposed to enhance the catalytic ability of traditional acetylacetone catalysts by supporting them on ionic liquid.

在该方法的指导下,发现了氧化催化剂结构活性关系,提出了一套用离子液体支载来提高乙酰丙酮金属催化剂催化氧化活性的方案。

Compared with the previous method, the improved route can provide directly a spheroid form of immobilized lipase particles of which the size can be controlled by adding non-ionic surfactants during the preparation process so as to increase the recovery rate of enzyme as well as decrease the external diffusional restriction which can diminish the enzyme activity. The improved method can also alter the hydrophobicity and microstructure of the immobilized enzyme matrix by changing the molar ratios of different alkoxyl silanes so as to enhance the enzyme activity by a"surface active effect"and eliminating the internal diffusional restriction.

与前人的制备方法相比,改进的方法可直接制得球形的固定化酶颗粒,而且颗粒的大小可以通过在制备过程中加入非离子型表面活性剂加以控制,从而可以提高固定化过程的酶活回收率和减小外扩散效应对酶的表观催化活力的影响;改进的方法还可以通过改变原料硅氧烷的种类及配比来改变最终制得的固定化载体的疏水性质及微观结构,从而通过对脂肪酶的&界面活化&作用和减小内扩散效应提高固定化脂肪酶的表观酯化活力。

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。

According to the research of the genetic texture of zircons and SHRIMP dating in the Caledonian banded - augen granitin Yunkai area and the Indosinian charnokite in southeast Guangxi,It is discoved that the ages of later Mesoproterzoic Sibao orogeny event concentrates between 1100 and 950Ma. It provides the important evidenve for the convergent and collision of Rodinan supercontinent in South China and the south extending of Jiangshan-shaoxin collision belt in later Mesoproterzoic.

云开地区加里东期条带-眼球状花岗岩,以及桂东南印支期紫苏花岗岩中锆石的成因结构和离子探针定年研究发现,中元古末四堡造山作用事件年龄集中分布于950-1100Ma,为华南中元古末罗迪尼亚超大陆聚合碰撞造山和江绍带的南延提供了重要证据。

FT-IR spectra show that a bridged bidentate complex acid site was formed.

FT-IR光谱分析结果表明,ST/Al-PILC中SO〓离子与TiO〓形成了桥式双配位的酸中心结构。

Using the biphase titrimetric method identify the ion type of LAS(12-2-12)gemini surfactants.

通过两相滴定法鉴定LAS(12-2-12)双子表面活性剂的离子类型,用红外光谱法对其结构进行了表征。

There exists isomorphous replacement in the rutile structure, and the most prominent feature is the average content of oxides, being 1.22%, 0.39%, 0.35% and 0.22% for V 2O 5, Fe 2O 3, ZnO and CuO respectively. They substitute Ti 4+ in octahedra. The valence of V is 5, and its polyhedron is trigonal bipyramid, which causes the lattice distortion, breaks the raw octahedron symmetry into square bipyramid, and produces the microstrains in the structure.

天然含钒金红石平均含V2O5可达1.22%,Fe2O30.39%,ZnO0.35%,CuO0.22%,这些金属离子可替代八面体中Ti^4 。V以5价形式存在,配位多面体呈三方双锥,其在晶格内部对Ti的替代导致晶格畸变,打破了配位多面体原有的八面体对称而呈四方双锥的几何形态,并产生结构微应力。

The copper ions showed four different coordination numbers and geometrical structures. 4 coordination, planar quadrangle; 5 coordination, tetragonal pyramid; 6 coordination, octahedron; 7 coordination, triagonal bipyramid.

晶体结构分析表明,该配合物中存在 [Cu2]2+、[Cu2(H2O)]2+和[Cu6(H2O)65Cu24]4-三种配位离子,铜原子呈现四种不同的配位数和几何构型,它们是:4配位的平面四边形;5配位的四方锥型;6配位的八面体型;7配位的三角双锥型。

In this paper, two novel Organic- Inorganic Hybrid Compounds Containing POMs were achieved by selecting POMs with unique structure and properties and organic ligands with bipyridyl groups as building blocks and transition mental cation as templating through hydrothermal reaction.

本课题选择结构和性能独特的多金属氧酸根和多齿有机配体作为构件,以金属离子作为模板合成出新型多金属氧酸盐无机-有机杂化化合物。

The structure and the simulation results about the cooling, bunching ,extraction and skimming of the RFQ cooler and buncher RFQ1L,which is an important part of the being-built super-heavy nuclide research spectrometer,have been introduced.

介绍了超重核研究谱仪中RFQ冷却聚束器RFQ1L的结构和运用SIMION程序对离子的冷却、聚束、引出和撇气过程的模拟情况。

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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。