钒的

The following is Ti-He which value is -6480.3 876eV. Ti-He(o2) had the more stable structure of four systems of Ti-He. The variety of volume before and after Geometry optimization proves this result. The population analysis also proves the interaction between helium atom and Ti was electrovalent bond.

利用Dmol3对钒、钛八面体和四面体团簇计算的结果表明，氦原子在金属钒四面体间隙的嵌入能比八面体间隙低，嵌入能为5eV；氦原子在金属钛八面体间隙的嵌入能比四面体间隙低，嵌入能为0.2eV。

The processes of smelting high vanadium ferrovanadium with vanadium pentoxide and vanadium trioxide are probed into, appropriate parameters are pointed out, and the two processes of smelting high vanadium ferrovanadium are compared.

对使用五氧化二钒和三氧化二钒混合料冶炼高钒铁的工艺进行了探讨，指出了适宜的工艺参数，并对生产高钒铁的两种工艺技术进行了比较。

sodium vanadate significantly inhibits the proliferation of human esophageal cell line ec109. the antitumor mechanism of sodium vanadate may be related to down-regulation of erk1/2 expression.

一定浓度的钒化钠能明显抑制食管癌细胞系ec109细胞株的生长，钒化钠的抗肿瘤机制可能与 erk1/2蛋白表达水平降低有关。

What is summarized in this paper is the present situation, current questions and prospects for high vanadium high speed steel.

0前言近20年研究发现，高钒高速钢不仅有很高的硬度和相当的韧性，而且有优良的耐磨性，因此作为新一代耐磨材料，高钒高速钢备受关注[1]。

Test of electrochemical methods Benzylidene acetone, formaldehyde, compound additive D, ammonium metavanadate solution of acid sulfate tin polarization curves, test ammonium metavanadate on the open circuit potential acid sulfate solution of tin.

用电化学工作站测试分析苄叉丙酮、甲醛、复合添加剂D、偏钒酸铵对酸性硫酸盐镀锡溶液的极化曲线的影响，测试偏钒酸铵对酸性硫酸盐镀锡溶液开路电位的影响。

The mechanism of vanadium removal from ammonium molybdate solution by ion-exchange was studied. It is found that V and Mo existing in ammonium molybdate solution are in the forms of V3O(superscript 2- subscript 9) and MoO4(superscript 2-), respectively, when V2O5 concentration is about 0.5g/L and the p!

对钼酸盐溶液离子交换钼钒分离机理进行研究研究结果表明，在钼酸盐溶液中V2O5含量约为0.5g/L，钒与钼在pH值为6.5~8.5的范围内分别以V3O(上标 3-下标 9)和MoO(上标 2-下标 4)的形态存在。

Methods:Vanadium was determined by dual-wavelength catalytic spectrophotometric method which was based on the vanadium catalyzing oxidation of acridine orange and acid chrome blue K by potassium bromate in 0.010 mol/L H2SO4 medium.

在硫酸介质中，利用钒催化溴酸钾氧化吖啶橙和酸性铬蓝K褪色反应，分别在476 nm和556 nm处测量催化体系和非催化体系的吸光度的变化，用双波长催化光度法测定痕量钒。

In acidic system, the solubility of vanadium was reduced because of the exisiting of insoluble vanadium oxide.

酸性体系中，固相中含有更不易溶的氧化钒，降低钒盐的溶解度。

The vanadium oxide films were characterized by X-ray diffraction and X-ray photoelectron spectra . It is found that the formation of vanadium oxide films was affected by substrate temperature and annealing time, because high substrate temperature and annealing were favorable to further oxidation.

采用X-射线衍射和X-射线光电子能谱对钒氧化物进行了表征，发现钒氧化物薄膜的形成受衬底温度和退火时间的影响，因为衬底温度以及退火有利于进一步氧化。

Two kinds of multi-layer structure of VO_x/PS/Si and VO_x/Si were fabricated, and the effects of porous silicon on the composition of vanadium oxide thin films were analysed.

对比了VO_x/PS/Si结构与VO_x/Si结构中氧化钒薄膜电阻对温度的热敏感性能，研究了多孔硅基底温度升高对氧化钒薄膜组分的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。