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Based on the problem of various types of catalyst and according to the features of carbonylation catalysts reactions, our team has been designed a series of new metal complexes of benimidazoles, which can be used for carbonylation catalyst of industry. Seven new benzimidazole derivatives were prepared by the o-phenylenediamine、oxalic acid、glycolic acid、monomethyl monopotassium malonate、ethyl cyanoacetate、succinic anhydride. The structures of them were confirmed by IR、Elemental analsis. The crystal structures of d and e were determined by X-ray single crystal diffraction of Germanic Bruker Smart APEX II CCD. The catalysis of them was tested by carbonylation reactions.

本文设计以邻苯二胺和草酸、羟基乙酸、丙二酸单甲酯、氰基乙酸乙酯、丁二酸单甲酯为原料采用PPA催化和无机酸催化法,合成了4种苯并咪唑-2-羧酸衍生物并进行了表征;培养了2个化合物d、e的晶体并测定和讨论了晶体结构;制备了3种未见报道的苯并咪唑金属配合物,对配合物在羰基化法制醋酐-醋酸反应的催化作用进行了初步试验。

The paper combined with the course of educational electroacoustic system experiment teaching innovation,discussed the objective of innovation,how to add comprehensive and designed experiments,how to apply modern educational technology instruments,and how to change teaching methods and examining ways.

通过结合&教育电声系统&实验教学改革的实际,对实验教学改革的目标和在改革中所进行的综合性、设计性实验的增加、现代教育技术手段的应用、教学方法和考核方式的变革进行初步探讨。

The algorithms of STLF and its application software system are studied elementarily in this paper.

本文主要针对电力系统短期负荷的预测算法及其应用软件系统的设计和开发进行了初步研究。

The papers elementarily discuss the new management concept and methods of urban design.

本文从实施管理的角度,初步探讨了城市设计实施管理的新理念与工作方法。

This thesis expatiates the principle and strategy for FPGA design, elementarily studiesparallel-structure of algorithm for FPGA image processing.

本文阐述了FPGA设计的基本原理和策略,初步研究了基于FPGA的图像处理的算法级并行结构。

Design and complete the application software for two-phase flowmeasurement elementarily.

设计并初步完成了用于两相流测量的应用软件。

The topology models of MFIand MOR were built and the method of Configurational-bias Monte Carlosimulation was used for investigating the adsorption and distributions of ethanethiolas adsorbate in MFI and MOR type zeolites. The diffusion of ethanethiol in MFI andMOR type zeolites was studied by molecular dynamics simulation.The results show, the concentration of Zn2+ is the most important factor of theloading quantity of zeolite 13X and alumina, and the temperature secondly. The pHvalue which range from 2 to 3 effects on the loading quantity faintly.

构建了MFI 和 MOR 两种拓扑结构沸石的数学模型,以乙硫醇分子作为被吸附的目标物,采用偏倚蒙特卡罗方法模拟乙硫醇在MFI和MOR沸石上的吸附行为及分子分布密度,并利用分子动力学模拟乙硫醇在这两种拓扑结构的扩散行为,为实现面向硫化物进行吸附剂的微观结构设计作初步探索。

In this work, according to the fact that the precipitation of ferreous and ferric iron to form magnetite nanoparticles is the fast reaction, we designed a new forced mixing route to prepare magnetite using nitrogen press in T type of tube to reach the intention of mixing in microscale and avoiding oxidation.

本文针对目前磁分离载体研究过程中存在的主要问题,从理论和实验两方面入手,设计和制备了两种纳米结构的生物磁分离载体微球,探讨了相关的科学问题,并在生物与医学应用方面进行了初步的研究。

Finally, proposing a new concept of "geothermometer," and which may be very useful in geologic research. The results of this preliminary study may be extended to other kinetic reactions of various minerals.

本研究为一初步研究,未来可针对其它矿物的动力学反应进一步探讨这些动力学方法的适用性,并设计新的实验方法以得到更好的实验与分析结果。

Taking the structure of the gymnasium of Yellow River Hydrotechnical Vocational Institute as an example,this paper analyzes large-span arch-supported membrane structure using nonlinear finite element method and approaches to the characteristics of stressing and deformation of this kind of structure.

本文以黄河水利职业技术学院风雨球场拱支索膜屋盖为工程案例,采用非线性有限元法,对大跨空间拱支索膜结构体系进行了结构分析,探讨了拱-膜组合结构的受力和变形规律,检验了初步阶段膜找形结果的可靠性,为同类结构的工程设计提供经验积累。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?