查询词典 si

A model suggesting the {100} planes of LaSi〓 grown on a {113}〓 surface has been put forward to account for the observed tilting growth of LaSi〓 disilicide on the Si (100) surface.

我们提出LaSi〓（100）面在{113}〓表面生长的模型，解释了所观察到的LaSi〓在Si（100）表面的倾斜生长。

EPR study of the thermal products of these montmorillonites shows that g = 2. 14 signal relates with hydrated copper ions existing in the interlayer of montmorillonites and g = 2. 07 signal relates with Cu~(2+) occupying the ditrigonal cavities of Si-O sheet. And, the supper fine line of g ca. 2. 2 - 2. 7 suggests Cu~(2+) migrating into octahedral vaeancies.

同时，该蒙脱石热处理产物的EPR研究表明、g=2.14信号与蒙脱石层间的水合铜离子相关， g=2.07信号和g为约2.7-2.2超精细结构线分别与进入了粘土矿物Si-O四面体片复三方形孔洞和铝氧八面体空位中的Cu相关。

EPR study of the thermal products of these montmorillonites shows that g=2.14 signal relates with hydrated copper ions eXisting in the interlayer of montmorillonites and g=2.07 signal relates With Cu,occupying the ditrigonal cav- ities of Si-O sheet.And,the supper fine line of g ca.2.2-2.7 suggestrs CU migrating into octahedral vacancies.

同时，该蒙脱石热处理产物的EPR研究表明、g=2.14信号与蒙脱石层间的水合铜离子相关， g=2.07信号和g为约2.7-2.2超精细结构线分别与进入了粘土矿物Si-O四面体片复三方形孔洞和铝氧八面体空位中的Cu相关。

The evaluation of the catalysts in the n dodecane hydroconversion showed that, when the Si/Al rat.

正十二烷加氢转化反应评价表明，在催化剂Si/Al比为 17。

Impregnated by Pd, the Si/Al 0.33 sample with enhanced neighboring region has the highest n- dodecane hydroisomerization conversion and selectivity.

样品担载Pd后对正十二烷的加氢异构化反应表明，交界区扩大的Si/Al = 0.33的样品有最高的加氢异构化得率和选择性。

Occurrence of RE hydride was identified in the Al-Si alloy containing RE andenrichment of hydrogen in polynary RE intermetallic compound was determined by means ofEPMA, secondary ion mass spectrography, Hg-free vacuum drivepipe hydrogen-meter to-gether with metallography and porosity measurement.

采用电子探针、二次离子质谱、无汞真空套管测氢仪等检测手段，并配合金相分析及试样孔隙度的测定，鉴定出含稀土的Al-Si合金中有稀土氢化物的存在，确认在多元稀土金属间化合物中氢的富集，提出稀土具有较强固氢作用的观点。

SI can inhibit apoptosis of vascular endothelia cells following oxidative injury in vitro.

SI对体外氧化损伤血管内皮细胞凋亡具有明显的抑制作用。

ABSTRACT In this paper, some problems in harmonic free electron lasers and plasma wave wiggler FELs are investigated. The applications of FEL in material science are discussed in detail. As an example, KrF excimer laser was used to investigate the a-Si: H thin film solar cells instead of the free electron laser.

本论文对适用于应用的谐波自由电子激光和等离子体波泵Wiggler型自由电子激光中的若干问题进行了研究，对自由电子激光在材料科学领域的应用及应用前景进行了详细讨论，并使用KrF准分子激光器代替自由电子激光进行了模拟自由电子激光对α-Si〓H太阳能电池的改性实验。

Combining the calculation of Gibbus free energy, we discussed the thermodynamic mechanism of synthesizing a-SiC from Si〓N〓.

结合吉布斯自由能计算，分析了化学转变法由Si〓N〓制备α-SiC的热力学过程。

The results show that Si element has an effect on facilitating carbon atoms to solute in Fe-Al-C liquid alloy and to graphitize in the process of solidification, which can solution strengthen the alloy matrix.

结果表明：Si可以促进C原子在Fe-Al-C液态合金中熔入及凝固过程中的石墨化，对Fe3Al基体有固溶强化作用。

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％。