成核

It's found that the (001) facet is the growth facet when the NBW crystal is grown by the Bridgman method through spontaneously crystallization. This phenomenon is in accordance with the growth characteristic of the typical scheelite crystals, and can be well explained by the Bravais law and the theory of anion coordination polyhedron.

指出坩埚下降法自发成核NBW晶体生长的生长面为（001）面，这与白钨矿结构晶体（001）面生长快的特点是完全符合的，Bravais法则和负离子配位多面体生长基元理论都能够很好地解释这一现象。

A special process named " silicification followed by carbonization" was adopted to solve the problems such as SiC grains forming on the SiO_.

通过"先硅化再碳化"的工艺方法可以较好地解决S iO2/S i复合衬底上S iC成核困难以及粘附性差的问题，同时还可以有效抑制S iO2中的O原子向S iC生长膜扩散。

A special process named "silicification followed by carbonization" was adopted to solve the problems such as SiC grains forming on the SiO2 and poor cohesiveness between the SiC and substrate. Furthermore,this method is effective to prevent O atoms diffusing from SiO2 into SiC epilayer.

通过"先硅化再碳化"的工艺方法可以较好地解决SiO2/Si复合衬底上SiC成核困难以及粘附性差的问题，同时还可以有效抑制SiO2中的O原子向SiC生长膜扩散。

The crystallization temperature and the crystallinity of PP increase due to the nucleation effect of sodium benzoate, which contributed to the improvement of the rigidity and heat resistance of the composites.

研究表明，RPS对PP具有一定的促进结晶的作用，且含有苯甲酸钠的yRPS对PP的成核作用较之未加苯甲酸钠的nRPS更为显著，故RPS的加入提高了PP的结晶温度、熔融温度和结晶度。

For the first time,surface active agent was used in separating lithium chloride from sodium chloride.

研究了混合表面活性剂对氯化钠中氯化锂和水的夹带量的影响；并对氯化钠晶体的成核及颗粒大小进行了讨论。

At the same time,MB could decrease the spherulite size and the crystallization degree of polypropylene.

结果表明，成核剂MB较好地改善了聚丙烯的力学性能以及熔体流动性能，降低了聚丙烯球晶尺寸。

However,the spherulite growth rate of PP-cats appears slower than that of pure iPP and decrease with the increase of the EPR content,which is ascribed to the difficulty in moving of propylene chains due to the higher viscosity of PP-cats melt.

此外，与纯PP 相比，PP-cats 的成核密度大幅度提高，被认为是PP-cats 具有快的结晶速率的主要原因。

The results showed that ultrasound could accelerate the nucleation time of sulfite calcium and increase rate of the neutralization reaction.

实验结果表明，一定超声功率可以缩短亚硫酸钙成核时间，提高中和反应速度，能有效的降低溶液中Ca2+和SO32-的残留量。

The effect of additives on the control of crystal size for sodium sulphate is discussed in the paper.

研究结果表明：十二烷基苯磺酸钠的加入增大了硫酸钠结晶过程的界面能，从而抑制自发成核过程的发生，促进晶体的生长，改善晶体的粒度。

On setting the derivative of nucleation rate formula equal to zero, the freezing temperatures of supercooling water were calculated.

对成核速率公式进行求导，使其为零，计算出过冷水在非溶解粒子和在平面上结冰的温度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。