镍的

The THFA yield and selectivity were 2.0%higher than those by using catalyst Ⅰ without promoter,3.0%higher than those by using Raney nickel catalyst under the same reaction conditions and furfuryl alcohol conversion.

在相同反应条件和糠醇转化率条件下，四氢糠醇收率和选择性均比没有助剂的镍催化剂Ⅰ高2.0%，比骨架镍催化剂高3.0%。

The procedures were effected by pH value,amount of humin and initial aqueous concentration of nickel.

通过液闪法分析得到胡敏素可富集镍，但是吸附受介质pH值、胡敏素用量和水相镍初始浓度等因素的影响。

Long-chain branched polyethylene was obtained using a homogeneous bianary catalyst system composed of late and early transition metal complexes,namely a mixture of bis(α-naphthalidine)-2,3-butanediimine NiBr2 and Cp* TiCl3,as catalyst precursors in the presence of MAO.

合成了一种后过渡金属镍化合物 [二- N ，N′--2 ，3-丁二亚胺镍二溴化物 ][C10H7—NC(CH3)C(CH3)N—C10H7]NiBr2，此化合物在MAO活化下催化乙烯聚合能得到含有末端双键的低分子量聚乙烯，即长链α-烯烃。

The process of selective reduction roasting- ammonia leaching is adopted to extract nickel,cobalt and recover iron from low grade nickeliferous laterite ore.

本研究采用选择性还原焙烧—氨浸工艺从低品位红土镍矿中综合提取镍、钴、铁，重点介绍了该工艺氨浸的试验研究。

The process of selective reduction roasting-ammonia leaching-solvent extraction-electrowinning is adopted to extract nickel,cobalt and recover iron from low grade nickeliferous laterite ore.

本研究采用选择性还原焙烧-氨浸-溶剂萃取-电积工艺从低品位红土镍矿中综合提取镍、钴、铁，重点介绍了采用煤作还原剂，选择性还原焙烧的试验研究。

All the above results indicate significantly that the copper, nickle and zinc can be separated successfully by this technology and the three products of copper sulfate, zinc sulfate and nickelous sulfate are finally obtained.

整条工艺完成了铜、镍和锌3种主要离子间的分离，得到硫酸铜、硫酸锌和硫酸镍3种产品。

In this study, we investigate the effect of post-annealing on magnetization damping in sputtering deposited NiFe thin films. The film thickness is ranged from 10 nm to 100 nm. Thin films were deposited at room temperature and a subsequent post-annealing was performed in vacuum better than 10-6 torr from room temperature to 700 0C for 30 minutes.

中文摘要本研究中，我们使用改变后退火效应来观察溅镀制程镍铁薄膜(Ni84Fe16)系列的磁性阻尼行为，溅镀薄膜厚度范围为10 nm ~ 100 nm，而镍铁薄膜后退火过程在真空度约10-7 torr中进行，达到标的温度(范围由室温至700 ℃)后定温30分钟，自然冷却取出。

After the removal of unoxidized nickel by wet chemical etching, the residual nickel oxide patterns were used for the selective growth of one-dimensional nanomaterials such as carbon nanotubes and silica nanowires.

之后为了达成选区成长之目的，利用湿式化学蚀刻移除未氧化之镍膜，留下的氧化镍结构则可用来成长奈米碳管及氧化矽奈米线。

Nanocrystalline nickel coatings were prepared by pulse jet electrodepositing on the substrate of 45 carbon steel.

采用脉冲喷射电沉积方法在45钢基体表面制备了纳米镍涂层，用扫描电镜和X射线衍射仪研究了平均电流密度对镍涂层表面形貌、微观组织结构及平均晶粒尺寸的影响，并进行了耐腐蚀性试验。

Composite electrodeposits of nickel-cobalt-tungsten carbide were prepared by adding tungsten carbide particles in the nickel-cobalt alloy solution.

研究了在镍钴合金镀液中加入碳化钨微粒形成镍－钴－碳化钨复合镀层的共沉积过程。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。