查询词典 hydriding

By researching the catalysis action of metals in hydrogen storage materials, it is found that metal activators accelerate hydriding-dehydrding velocity of hydrogen storage materials in the process of grinding, and they also reduce the dehydriding temperature, enhance the hydrogen storage capacity of materials, and hasten the formation of similar-graphite microcrystal in the process of pretreatment.

通过对储氢材料中金属催化作用的研究发现，金属催化剂促进材料球磨过程中的快速吸氢，加快材料的放氢速度，降低材料的放氢温度，提高材料的储氢密度，促进无烟煤在预处理过程中类石墨微晶结构的形成。

Scanning electron microscopy, energy-dispersive spectrum, and X-ray diffraction were used to characterize the composite before and after hydriding.

利用扫描电镜、能谱分析和X射线衍射分析对该复合材料吸放氢前后的变化进行了表征。

The influence of nanocrystalline particles and catalysts on the hydriding and dehydrogenating properties of magnesium-based hydrogen storage materials are summarized in this paper.

总结了纳米晶、催化剂改性等对镁基储氢材料吸放氢性能的影响，介绍了不同镁基储氢复合材料的吸放氢性能以及基于密度泛函理论的第一原理计算方法在镁基储氢材料吸放氢性能方面所做的一些基础理论研究，指出随着量子化学、凝聚态物理等学科以及计算机技术的发展，理论计算方法在研究镁基储氢材料吸放氢性能方面的作用将越来越重要。

By using magnetron sputtering technique, the rare earth films including Ce-rich mischmetal, La-rich mischmetal, lanthanum and yttrium were prepared on glass, ITO glass and Si substrates under the vacuum environment. The crystal structure, surface morphology, electrochemical properties and optical performances during the hydriding/dehydriding process were investigated, the reaction mechanism and invalidation reason were analyzed as well.

本文采用直流磁控溅射方法分别在玻璃、ITO玻璃和Si片等基体上制备了富铈、富镧、La和Y等稀土系薄膜，对所制备的稀土薄膜在气态和电化学充放氢过程中的晶体结构、表面形貌、电化学性能和光学性能等进行了研究，并对其反应机理和失效原因进行了探讨。

By transmission electron microscope, selected area electron diffraction, powder X-ray diffraction, differential scanning calorimeter as well as self-devised drainage, the effects of metals on grindability, material size, hydrogen storage capacity and hydriding-dehydriding properties are emphatically researched. Fe、Co、Ni were added in pretreatment process of anthracite and the effects of the added metals are researched, also, the action mechanism of metals is discussed on the basis of experimental results.

通过透射电镜、选区电子衍射，X射线衍射、差式扫描量热分析以及自行设计的排水装置等分析测试手段，着重研究了储氢材料中金属对其可磨性、粒度大小、储氢密度、吸放氢性能等的影响，在无烟煤的预处理过程中添加了Fe、Co、Ni三种金属，研究了所添加金属对材料储氢的影响，并在实验结果的基础上探讨了储氢材料中金属的作用机理。

Given a lower packing fraction, the hoop strain in the vessel wall induced by the hydriding/dehydriding reactions was increased with alloy powder size.

在较低粉末填充率的情况下，储氢罐壁上的切线方向应变将随著粉末粒径增大而增加。

Results showed that at a given position on the storage vessel surface, the hoop strain was increased with a higher packing fraction of alloy powders during the cyclic hydriding/dehydriding reactions. This resulted from a larger amount of pulverized fine powders generated by a larger packing fraction of alloy powders.

结果显示，在储氢罐表面之特定位置上，其切线方向应变随著粉末填充率提高而增加，这是由於较高的粉末填充率产生较多的粉碎细小粉末所导致。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。