查询词典 hydrides

Literatures of preparation of nanoscale lanthalide metal and lanthanide hydrides are not found.

我们尚未见到有关制备纳米镧系金属和镧系金属氢化物的文献报道。

To investigate the kinetic isotope effect of Ti-Mo alloy hydrides, E of the deuterides is compared with that of the protides. When x=0.03, E of deuterium desorption is larger than that of protium desorption. When x=0.13 and 0.25, E of protium desorption is larger than that of deuterium desorption.

结果显示，x=0.03时，合金氕化物E小于氘合金化物E，与钛放氢动力学同位素效应一致；x=0.13、0.25时，氕化物E大于氘化物E；x=0.50、1.00时，氕化物与氘化物的E差别不大。

The results show that the SAXS intensity measured for hydride of 5at％ Mo alloy was lower than that of other hydrides in the high scattering angle range.

结果表明，氢化物样品中Mo含量为5at％时，所测定的SAXS强度在高散射角区明显低于其它样品的SAXS强度。

The paper reviews the various techniques commonly used in the kinetic measurement for metal hydrides,including volumetric method and thermal analysis method.

本文概述了测定金属氢化物反应动力学常用的各种实验技术，包括定容法和热分析法等，分析了不同实验系统测量误差的产生和消除，总结了各种技术的特点和不足，并对新技术的发展趋势进行了展望。

Beginning with the non-relativity Hamitonian and the analysis of intrapair and interpair theoretical model, the pair correlation energies of Na-Ar atoms, small hydrides and their isoelectonic atoms are systematically calculated and investigated.

从非相对论哈密顿入手，分析对内、对间相关模型的理论基础。

The products are porous solids with high specific surface area (83m^2/g for NaH) and pyrophoric in air. They are far more active than the commercial alkali metal hydrides.

该反应的产物是一类大比表面积(NaH的比表面积为83m^2/g)、多孔性固体粉末，在空气中可自燃。

For the first time we synthesized nanoscale metal hydrides of lanthanum, neodymium, samarium, dysprosium, and ytterbium with high efficiency under mild condition by complexometric catalysis instead of traditional preparation at high temperature and high pressure. It is for the first time that we synthesized lanthanide organic compounds with catalysts or initiating agents at atmosphere and ambient temperature,and some of them are new compounds. Nanometric lanthanide metal powders are prepared by thermal decomposition of the compounds in vacuum. Differently from the traditional method, size of the products prepared by our method is less than 40nm, and the activity of the reaction is very high. They are pyrophoric at atmosphere. They can make some reactions without activity or low activity show extremely high activity .We investigated influent regulations of methods, conditions to scale and special surface.

我们首次成功地用络合催化等方法取代需在高温高压下进行的传统方法，在温和条件下高效率地合成出纳米尺寸镧、钕、钐、镝、镱的金属氢化物；首次在常压常温的条件下，通过催化、引发等方法合成镧系金属有机化合物，再将其真空热分解成功地制备了纳米尺寸的镧、钕、钐、镝、镱等金属粉末；与传统方法不同，这些方法得到的产品基本颗粒尺寸小于 40 nm，遇到空气燃烧，具有极高的化学反应活性，使原来活性很低甚至观察不到活性的反应大幅度提高反应速率和产率；考察了制备方法、制备条件等因素对晶粒尺寸、比表面积大小等的影响规律。

"We found that unconventional metal hydrides can be used for a chemical process called oxygen reduction, which is an essential part of the process of making water," said Zachariah Heiden, a doctoral student and lead author of a paper accepted for publication in the Journal of the American Chemical Society.

科学家们已经发现一个新的制取水的方法，能从根本上减少绿色科技的造价。伊利诺伊州大学的研究者公开了这个从一些未必可行的启动材料，，例如酒精中制取水的方法。他们希望他们的发现能早就更好的催化剂和更便宜的燃料电池。

This paper introduced a few of methods of hydrogen storage,including compressed hydrogen, liquidized hydrogen,metal hydrides,carbon nanotubes,organic liquid hydrides storage,and commented their recent developments,and pointed out direction of hydrogen energy storage progress.

介绍了高压压缩储氢、深冷液化储氢、金属氢化物储氢、碳纳米管吸附储氢及有机液体氢化物储氢等几种储氢技术的发展现状，并指出储氢技术未来的发展方向。

This thesis introduces the characters and application of metal hydrides and the newest devolepment of the study co metal hydrides all over the world.

本文介绍了金属氢化物的性质与应用，与及国内外金属氢化物研究的最新动向。

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。