查询词典 nucleation

And some knowledge of grid topology is also introduced. The nucleation of condensative steam in the whole flowing field has been displayed. Furthermore, the characteristic of two-phase complex flow is analyzed. In the stationary blade's passage, the flowing status is stable relatively. The steam expanding is comparatively relaxing and the nucleation area of steam is small. In the moving blade's passage, the expanding of steam is tempestuous relatively because of dual-velocity effect; the degree of condensation of steam is considerably distinct.

最后，对有凝结的蒸汽在三维叶栅中的流动进行了模拟，得到了蒸汽凝结流动在整个流道内的流动情况，分析了这种两相复杂流动的特点，在静叶内，流动状态基本稳定，蒸汽膨胀较为缓和，发生凝结的区域很小；在动叶内，由于双重速度的作用使得蒸汽膨胀较为剧烈，相对蒸汽凝结程度比较大。

From the temperature (612℃) slightly under its liquidus, the nucleation number was most in the melt, the primary grains were fine and global, the number of grains per area was more, and the optimum holding time was near 30min at 612℃. From the temperature (600℃) below its liquidus, the nucleation number was more, but some nucleuses congregated and grew dendritically.

其中 ，液相线铸造法〔4〕是我们开发的一种新的制浆方法，该法使金属熔体在液相线温度附近保温一段时间并形核，然后浇铸成具有细小球形组织的适合半固态成形的铸坯。

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。

It was found experimentally that HIC happens via nonacid nucleation and then quasi-cleavage along {111} planes when C〓 is higher. Otherwise, in the case of lower C〓, hydrogen enhances ductile fracture via hydrogen-enhancing microvoid nucleation, growth and connection.

对预充氢的310钢薄膜进行TEM原位拉伸表明，当氢浓度较高时，氢致断裂通过空洞形核，然后沿{111}面准解理扩展的方式进行；当氢浓度较低时，氢促进纳米空洞形核、长大和连通，进而导致韧断。

Combined crystallization kinetics analysis obtained via rheometry and morphological observation of crystals growth performed on POM, two different mechanisms of shear-enhanced crystallization for PP/ grafted MWCNTs composites were suggested:(1) at low temperature, strong heterogeneous nucleation plays a dominant role on the. crystallization behavior, which would be saturated at a higher filler content, and the effect of shear-enhanced crystallization was weak;(2) at high temperature, the effect of heterogeneous nucleation was substantially depressed, and the crystallization of the composite was obviously accelerated by pre-shear and the thread-like crystallites were generated earlier than the spherulites.

结合流变测试结果和热台偏光显微镜观察的结晶形貌发展过程，对于PP／G—MWCNTs体系得到了两个不同的剪切影响机理：(1)在低温条件下，强烈的异相成核作用对结晶行为的影响占主导优势，而剪切作用对结晶的影响十分微弱，同时，在填料含量较高是，异相成核作用具有饱和性；(2)在高温条件下，异相成核作用被抑制，复合体系的结晶主要受到预剪切作用的影响，并且纤维状晶体较球晶更易生成。

However, the coarsened and less dispersive Ti〓Ni〓 precipitates do not affect the morphology of the R phase and provide the preferred nucleation sites for the martensite, but they prevent the martensite from its auto-catalytic nucleation and growth and, consequently, the martensite develops discontinuously in a clustering nature.

低弥散度的粗片状Ti〓Ni〓相不影响R相的形貌，而且为马氏体相变提供优先形核部位，同时又制约马氏体的自促发成核和生长，以致使马氏体呈群团状的区域式不连续发展。

The results indicate that MgB2 phase has smaller critical nucleation energy, higher nucleation rate and shorter incubation time comparing with MgB4 phase as the undercooling degree excesses to a critical value at a low undercooling range. Hence, the MgB2 phase nucleates primarily from the melt and grows up.

结果表明：在小过冷度范围内，当过冷度大于某一临界过冷度时，MgB2相比MgB4相具有更低的形核功、更大的形核率和更短的形核孕育时间，因而MgB2相从与MgB4相的竞争形核中胜出，优先从合金熔体中形核并生长。

It is easies for the nucleus to form than for growth steps when the piling height of carbon-hydrogen radicles is big. Nucleation density and second nucleation determine the roughness of diamond films.

碳氢基团在金刚石（100）面上的堆集结果是形成二次晶核还是新的生长台阶，取决于碳氢基团的堆集高度；堆集高度较大时，形成二次晶核的可能性较大。

The homogeneous nucleation discussion shows that PMSi possesses the excellent homogeneous nucleation performance. Many crystal nucleuses are formatted when PMSi is added into wastewater. It makes lots of floccules sedimentation to format and granule floccules to grow rapidly, which makes the floccules close-grained, big-bodies and fast-sedimentation-rate.

均相成核讨论表明，多核复合无机高分子絮凝剂PMSi具有更强的均相成核能力，大量晶核的形成诱导了絮凝体沉淀的形成，使得絮体颗粒迅速成长，其结果必然是絮体颗粒密实、体积大且沉降速度快。

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。

His female bullfighter Lydia gradually Health love, but she was in a vegetative state after the Bulls Zhuangcheng away from her, just because Lydia's ex-boyfriend showed more affectionate than he is like love.

他对女斗牛士莉迪亚渐生爱意，却在她被公牛撞成植物人后离她而去，仅仅因为莉迪亚的前男友表现出好似比他更深情的爱。

I know of none which are not easy to answer, but what I am trying to do now is only by a series of hints to throw some light on the narrow path of legal doctrine, and upon two pitfalls which, as it seems to me, lie perilously near to it.

我不认为有什么难以回答的问题，但我现在要做的仅仅是通过一系列线索，来给法律理论的狭窄路径以及在我看来离它近得危险的两个陷阱提供一些启示。