查询词典 si

The underline mechanism of diffusion and nucleation also be studied. Electroscopic imaging in transmission electron microscopy shows that SiOx act as a one-way diffusion barrier in oxide-mediated silicidation which only allows Co diffuse into Si substrate but inhibits Si diffuse out.

我们并针对其形成机制作探讨发现，氧化介层形成一个单向的阻绝层，只允许钴扩散进入矽基材，但阻挡矽向外扩散。

A nano-Si composite anode material was found to exhibit an extremely high reversible capacity over 1700mAh/g Si, good cyclic performance and endurability under larger current density.

研究发现纳米硅复合负极材料在室温二次锂电池中表现出较好的循环性，可逆容量达到1700mAh／g，而且具有良好的动力学行为。

Recent data have provided clear insights into some aspects of self-recognition and rejection in the SI response of three types,the single-locus sporophytic and two distinct forms of single-locus gametophytic SI.

高等植物在长期的进化过程中，通过雌蕊识别并拒绝遗传上相近的花粉，防止近亲繁殖、保持遗传多样性，该机制被称为植物自交不亲和性。

To introduce perturbation corrections of lattice strain intosemiempirical MO calculations,we have written out the programs,STRAIN+SPHF,for calculating perturbation corrections of lattice strain,based onsemiempirical MO calculation program package MOPAC3.0.In principle,the theoretical method and program for calculating corrections of latticestrain can be employed for the studies of growth mechanisms for diamondfilms or other non-metallic films on any non-metallic heterogenic substrates.

运用引入晶格应变修正的AM1半经验分子轨道方法和不包含该修正的AM1方法，通过在Si(100)和(111)衬底表面上提取H原子以及CH3和C2H2吸附过程的计算比较研究，发现包含应变修正的结果比不包含该修正的结果更准确地描述了Si衬底上发生的化学反应过程，并且还能够揭示出无应变修正结果中没有揭示出的表面物理化学现象。

Objective To study the effects of Si-ni Powder, Xiao-yao Powder and Si-junzi Decoction on chronic unpredictable mild stress model's BDNF and CREB gene expression changes in hippocamp of rat.

目的：探讨慢性应激肝郁模型大鼠海马BDNF、CREB基因表达及疏肝、疏肝健脾与健脾三种方剂的效应。

The nc-Si/c-Si heterojunction MAGFET manufactured by CMOS process owns inequipotential potentials VHO, which increases with increasing absolute value of supply voltage VDS.

摘 要：采用CMOS工艺制作的纳米硅/单晶硅异质结MAGFET存在不等位电势VHO，不等位电势VHO随工作电压VDS绝对值增加而增大。

The experiment result shows, when extra magnetic field B=0, and supply voltage VDS is constant, inequipotential potentials VHO of the nc-Si/c-Si heterojunction MAGFET are close to zero output with increasing absolute value of the gate biased voltage VGS. Adopting gate biased voltage to compensate inequipotential potentials, compared with extra compensation resistance method, could improve magnetic sensor sensitivity, when supply voltage VDS is -1.0 V, magnetic sensitivity can be improved by 18%.

实验结果表明，当外加磁场B=0时，工作电压VDS恒定时，随栅极偏置电压VGS 绝对值增加，纳米硅/单晶硅异质结MAGFET不等位电势VHO逐渐接近零位输出；采用栅极偏置电压进行不等位电势补偿较外加补偿电阻方法可以使磁传感器灵敏度得到提高，在工作电压VDS为-1.0 V时磁灵敏度约提高18%。

Through adding biased voltage VGS to gate of the nc-Si/c-Si heterojunction MAGFET, the inequipotential potentials are compensated by adjusting equivalent resistance values of conducting channels.

通过在纳米硅/单晶硅异质结MAGFET栅极上外加偏置电压VGS，调整导电沟道等效电阻阻值进行不等位电势补偿。

An alkaline sample digestion procedure using fusion with lithium metaborate (LiBO2) after dry ashing was developed. Silicon, aluminium and other, a total of 10 elements in different kinds of biological samples, were measured by ICP-AES.

探讨不同种类生物样品中Si和Al等10种元素的测定方法，采用干灰化结合偏硼酸锂碱熔灰分的前处理方法，用电感耦合等离子体原子发射光谱法同时测定试样中Si和Al以及Ca，Mg，Fe，Na，P，Mn，Sr，Ti。

The results showed that Ni\+\{2+\} bonds with O\+\{2-\} of the SiO\-2 support in bidentate fashion and is terminated with the two methoxyl groups.

结果表明，负载型单核金属甲氧基配合物 Ni(OCH3) 2 / Si O2 中，Ni2 +与载体 Si O2 表面的 O2 -以双齿形式配位；在催化剂表面存在 CO2 的桥式吸附态和甲氧碳酸酯基物种两种吸附态，CH3OH则只有一种分子吸附态。

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％。