成核

The defective Langmuir-Blodgett film of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine induced by potassium oxalate(K2C2O4) and its effect on nucleation and growth of calcium oxalate monohydrate were investigated with the aid of atomic force microscopy and scanning electron microscopy.

采用扫描电子显微镜和原子力显微镜研究了经不同浓度草酸钾(K2C2O4)处理后二棕榈酰磷酯酰胆碱的缺陷LB膜及其对一水草酸钙成核和生长的影响。

These results demonstrated that the sectional structure of the nozzle's orifice would not significantly affect the morphology and the size of the generated microspheres at least for the present system. RESS was also performed by nozzle B at the extraction temperature and pressure of 388K and 30.0MPa and pre-expansion temperature of 453K, and agglomerated microspheres with mean diameter of 0.8μm were obtained.

以α-Al〓O〓微滤膜为基膜的SCSI过程实验结果定性地验证了上述数学模型的可靠性，经过SCSI、水解及烧结过程后，陶瓷膜的孔径改变情况由气体渗透和泡压法表征，结果表明当膜面性质有利于均相成核时，陶瓷膜流动平均孔径减小；相反平均孔径增大，这与过程模拟结果是一致的。

In order to understand the frost crystal growth, the nucleation process on the cold plate with constant temperature was investigated.

为了加深对晶体生长阶段的认识，本文对某一具有确定温度的冷壁面突然与一定环境条件下的湿空气接触时冷壁面上的成核过程进行了研究。

Moreover, the crystallinity of PP and PP/nucleators are reduced by ultrasonic irradiation.

此外，超声辐照使PP及PP／成核剂体系的结晶度呈下降趋势。

By applying ultrasonic wave to different PP/nucleators system, crystalline structures of PP are changed.

静态超声作用使PP及PP/成核剂体系的结晶行为发生了显著变化。

It was indicated that the haze of PP was decreased drastically and the glosses and mechanical properties of PP were improved by dehydroabietate-based nucleators.

结果表明，脱氢枞酸型成核剂可以大幅度降低聚丙烯的雾度，提高光泽度，改善力学性能。

Biological systems, however, use biomacromolecules as nucleators, cooperative modifiers, and matrices or molds to exert exquisite control over the processes of biomineralization, resulting in unique inorganic-organic composites with various special morphologies and functions.

然而，在生物系统中，利用生物大分子作为成核剂、协同调节剂或基质和模板，能够精确地控制生物矿化过程，导致具有特殊形貌和功能有机-无机复合材料的形成。

The effects of ultrasonic irradiation on extrusion processing of polypropylene, PP/ethylene-propylene-diene monomer terpolymer blends and crystallization behavior of PP in different PP/nucleators system are studied.

本文利用超声-挤出装置和静态超声辐照装置，研究了挤出过程中超声作用对PP，PP/EPDM体系的流变行为，结构与性能的影响以及PP、PP/成核剂NaBz、MHS、NC-4、TM-1、Talc、Talc(KH及Mica体系在超声辐照作用下结晶行为的变化。

Compared to the untreated sample, the adsorbed carbon atoms can more easily find suitable nucleation sites on the W-implanted substrate so as to be protected from re-evaporation.

与未处理的样品相比，沉积碳更易在W离子注入后的基底表面找到适合的成核生长点，避免被重新蒸发。

In Chapter Three, we have investigated the polydispersity effects of components on nucleation using a simple three-component model in the frame

对于成核问题，重均聚合度和多分散性指数基本可以表征组分的多分散性。

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％。