氢化物

A first-principles calculation method based on density functional theory was used to investigate the crystal and electronic structures as well as stability properties of high and low temperature Mg2NiH4 hydrides.

摘 要：采用基于密度泛函理论的第一原理计算方法，对高、低温Mg2NiH4氢化物的晶体与电子结构及稳定性能进行研究。

Storing hydrogen as a gas or liquid in a vessel containing "reversible" crystalline metal hydrides is one way to carry it around.

把氢气以气体或液体的形式储存在一个包含&可逆的&金属氢化物结晶的容器里是一个携带它的办法。

Based on the study of the cycling capacity degradation mechanism of the alloys, it is found that the structure stability of the alloys and their hydrides is good during cycling and has not effect on the cycling capacity degradation of the alloys.

对La〓MgNi〓等合金的循环容量衰退机制进行的研究结果表明，在充放电循环过程中，上述合金及其氢化物的结构稳定性良好，与合金循环容量衰退较快的行为无关。

The hydrides are then decomposed in a low-temperature flame .

然后氢化物在低温火焰中分解。

Finally, the development trend on Mg-based transition-metal complex hydrides Mg2NiH4, Mg2CoH5 and Mg2FeH6 in the future is prospected.

最后展望了对于具有18电子结构的镁基过渡金属氢化物在今后研究中的发展方向。

The characteristics and trends in material research／development at present are discussed,focusing on the new progress in material research done by the Institute of Metal Research CAS.What were studied include ultra-high strength maraging steel,nickel-free austenite stainless steel for medical applications.coronary artery bracket for drug's slow release,antibiotic stainless steel and metal hydride for the use of air conditioner.

摘 要：首先分析了材料研究与发展中呈现出的新特点和新趋势，着重介绍了中国科学院金属研究所相关课题组近年来在超高强度马氏体时效钢、新型医用无镍奥氏体不锈钢、缓释药物冠动脉支架、抗菌不锈钢、金属氢化物空调等新材料及新材料技术方面的研究新进展。

The dislocation configuration and the interaction between hydrides and dislocations of N18 Zircaloy after cyclic deformation at room temperature have been investigated,using transmission electron microscopy.

应用透射电子显微镜研究了N18锆合金在室温下循环变形后的位错组态以及氢化物与位错的相互作用。

Methods: Forty-three indiviuals who were exposed to arsenic more than 0.05mg/L in well water were chosen and the vein blood and morning urine was collected; The MTHFR C677 polymorphism was analyzed by PCR-RFLP method; Urinary inorganic and methylated arsenic were speciated by high performance liquid chromatography combined with hydride-generation atomic fluorescence spectrometry; Microbiological assay was used to estimate serum folate.

在砷中毒流行区选择饮水史清楚、饮水砷含量高于0.05mg/L的43名居民，采集空腹静脉血并收集晨尿，以聚合酶链反应－限制性长度多态性方法分析MTHFR基因C677T位点多态性，采用高效液相色谱－氢化物发生－原子荧光法检测尿中各种形态的砷，采用微生物法测定血清中叶酸水平。

The main results in this thesis were as follows: 1 Proposed a simple and sensitive method for the determination of total arsenic in sinters by hydride generation atomic fluorescence spectrometry.

本论文的各项实验内容及结果摘要如下：1 采用氢化物发生原子荧光光谱法测定烧结物中的总砷含量。

The self - discharge of nickel - metal hydride battery was related to various factors.

金属氢化物镍电池的自放电与多种因素有关。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。