成核

The heterogonous nucleation of nano - CaCO3, PP - g - MA and PP - g - AA increases the crystallization temperature and melting point of PP.

纳米CaCO3和增容剂对PP／PS共混物中PP结晶存在异相成核作用，提高PP结晶温度和熔点，PP—g—MA和PP—g—AA的异相成核作用比CaCO3的大。

In this paper, the effect of content of nano-CaCO3 nucleation agent on cell nucleation of Polystyrene microcellular plastics was studied with self-made dynamic foaming simulatorr.

本文在PS中加入不同含量的纳米碳酸钙作为成核剂，用自行研制的发泡模拟机研究了纳米碳酸钙含量对PS微孔塑料泡孔成核的影响。

The results show that nuclei make the microcrystalline structure and crystalline rate of PA1010 changed.

通过引入成核剂（Nd2O3）研究PA1010微晶结构的变化，以及对PA1010结晶行为的影响，也讨论了成核剂对结晶－非晶中间相的作用。

It was iound in the experiment that the glass fiber made crystal peak temperature raise 8~9 ℃, Crystal original taper to be large, spherocrystal size small, it -acted the function of hetero-geneous nucleation for polypropylene . High density polyethylene has plasticizing efficancy and combined effect of hetero-geoeous nu...

试验表明PP/GF/HDPE复合物的结晶峰温度升高8～9℃，结晶起始斜率变大，球晶几何尺寸明显减小，复合物中的玻璃纤维起到异相成核作用，高密度聚乙烯对聚丙烯有增塑作用并对异相成核具有协同效应。

Organic matrixs coming from cells play role in nucleation, growth, morphology, polymorphology of inorganic materials. This control of organic matrixs are mainly behaved by the interfaction between organic matrix and inorganic materials .The processing of organic matrix controlling inorganic material is called as molecular recognition. The mechanism of organic-inorganic molecular recognition contains three facts such as electrostatic attraction, lattice geometry matching and stereochemical complimentary.

细胞分泌的有机基质在无机矿物的成核，生长，形貌，多型和结晶学定向等过程中起到了调控作用，基质对矿化的这种调控作用具体表现在有机或生物大分子和无机离子在界面上的相互作用，有机质对无机晶体的成核，生长，晶形及结晶学定向等的控制过程称为分子识别，有机-无机界面分子识别机制主要包括静电作用，晶格几何匹配和立体化学互补三个方面。

The non isothermal crystallization behavior and melting characteristics of polypropylene nucleated by different nucleating agents were studied by DSC.

用 DSC研究了两种成核剂成核 PP的非等温结晶行为与熔融特性。

The kind s,products,and new progress of the nucleating agents were introduced in detail.

综述了国内外聚丙烯成核剂的生产及发展状况，详细介绍了聚丙烯成核剂的种类、产品和最新研制进展，提出了今后的发展方向。

Exploring the rule of nucleation coefficients will be a possible wayapproach microvoids nucleation mechanism. OFHC Cu and pure Cu incipient spalled under～10~5s~(-1)strain rates electric gun driven twostage flyer impacts loading.

极高应变率下Cu、Al中微孔洞分布均表现为成核规律相关参数与应变率有关，探求不同应变率、不同材料参数加载下，NAG模型参数的变化规律是研究微孔洞成核机理和规律的可行方法。

The gas-to-powder conversion is carried out following the route: DMS pyrolyzes and forms product molecule and molecular clusters, the product molecular clusters that grow to and above the critical size by random collisions with molecules and other clusters become elementary particles, the elementary particles grow further by collisions and fusion with molecules, clusters and other elementary particles to form resulted SiC particle.

论文采用TEM、HREM、XRD、IR、NMR、中子衍射、Raman光谱和定量化学分析、光透沉降粒度分析等手段，对制备得到的纳米SiC粉体进行了系统表征研究，并研究了SiC纳米粉体的成核、生长、晶化过程和机制，指出化学气相反应法制备SiC纳米粉体的过程是一个均匀成核→核子生长形成初始颗粒→初始颗粒熔融碰撞→产物粉体的过程。

The nucleation and growth of thermodynamically unstable calcium oxalate trihydrate crystals were faster than those of thermodynamically stable calcium oxalate monohydrate crystals when the crystallization was in higher concentrations of calcium and oxalate (in the form of potassium oxalate). however, only com crystals formed when the concentrations of calcium and oxalate declined to 0.60 mmol/l.

结果 ca2+和c2o42-浓度较高时，热力学不稳定的三水草酸钙晶体成核及生长的速度比一水草酸钙晶体快，而随着ca2+和c2o42-浓度的降低，com晶体的成核和生长占优势，当浓度降低到0.6 mmol/l时，只出现com这一种晶型。

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。