| 1. | Influence of transition elements dopant on the photocatalytic activities of nanometer tio
2光催化剂性能的影响 |
| 2. | Wireless transition element transmit
无线传输类 |
| 3. | Construction of the transition elements between the sparse and dense meshes in the finite element computation
有限元计算中疏密网格间过渡单元的构造 |
| 4. | The study on the replaced reaction of coordination water in transition elements heteropoly anions with keggin structure by quinine
结构过渡金属杂多阴离子中配位水与奎宁的取代反应 |
| 5. | This paper gives a review on the research work of organogallium complexes formed by gallium and main group element , transition element as well as typical ligands
对最近几年镓与主族元素、过渡元素及其他一些典型配体形成的有机镓配合物的研究进展作一概述。 |
| 6. | In this thesis , previous research works on mg - based hydrogen storage materials have been reviewed . on this basis , the following works have been carried out : firstly , the part of ni in mg2ni alloys was partial substituted by the transition element cr . the effect of element cr and mechanical alloying on the phase structure and hydrogen storage properties of mg2nii . xcrx ( x = 0 , 0
本文在对国内外镁基储氢材料的研究进展进行了文献综述的基础上，着重对以下两方面内容进行了研究： ( 1 )用过渡族元素cr对mg _ 2ni合金进行了元素替换，研究了mg - ni - cr三元合金的晶体结构、微观特征以及吸氢动力学性能。 |
| 7. | Secondly , the effort is made to develope new type of transition element for multi - scale fatigue damage simulaton of long - span structures for the transition between elements for the hot spot stress analysis and the structural element . the linear and piecewise linear interplotion function for displacement interplotion are used for the transition element formulation according to the displacement compatibility requirement between element interfaces
在综合已有的构造过渡单元模型关于位移插值形式的基础上，通过采用分段线性位移插值模式和线性位移插值方式，并在位移模式中引入非协调位移模式，强迫构造单元通过分片试验，构造了一种用于疏密网格单元连接过渡单元。 |
| 8. | Two numerical examples of simple component in two and three dimensions are analyzed respectively by using the formulated transition element . the calculated results show that the formulated transition element can realize the transition between elements with different mesh densities and the calculated stress has a higher precision , which suggests that the transition method using the formulated two dimensional and three dimensional transition element is feasible for the transition between different meshes of elements in the multi - scale damage modeling
进行了相应的数值分析，应力计算结果表明：构造的过渡单元能够实现疏密网格之间的单元过渡，应力计算性能良好，表明文中所提出的过渡单元的连接过渡方案是可行的，初步实现了结构跨尺度损伤模拟过程中所需要的疏密网格单元之间的过渡。 |
| 9. | To validate the formulated transition element for the calculation of the hot - spot stress and stress concentration factor in the welded components by experimental results , the stress concentration factor of the experimental welded specimens carried out in the research group is calculated by using the developed plane - transition element . the calculated stress concentration factor in the two types of tested welding components agrees well with that obtained from the experimental result . and the calculated result on the tendency of hot - spot stresses agrees well with that from the measured result
为了验证文中构造的过渡单元模型用于分析焊接节点附近的应力集中问题的正确性和有效性，进一步又对过渡单元模型进行实验结果验证，采用平面过渡单元模型计算了本课题组进行的两类焊接构件的应力集中系数，并与根据实测方法得到的应力集中系数进行了比较，计算结果与实验测试得到的应力集中系数和相应的热点应力变化趋势比较吻合，为本文建立的过渡单元的实际应用提供了初步的基础。 |
