nucleation

nucleation

1. Consequently, the Ca P supersaturation and the ion activity product of apatite increased and this stimulated the nucleation and growth of the apatite crystals and the formation of apatite coatings.

Ca2 + 离子又能使表面附近的pH值增大 ,Ca2 + 离子和HPO2 -4离子的活度积就增大 ,从而刺激了磷灰石晶体的成核与长大 ,最终形成表面磷灰石涂层

2. There is a transitional potential in nucleation frequency plots with increase of potential, when the concentration of Cl- is over 0.2 mol/L in NaHCO3 + Na2CO3 solutions.

Cl-浓度的增加,对亚稳孔形核规律亦产生影响,当Cl-浓度超过一定值(如大于0.2mol/L)时,随着电位升高,形核率变化出现转折电位。

3. Poly(butylene terephthalate)-layered silicate (LS) nanocomposites (NPBT) were prepared, and their crystallization, nucleation and their structure-properties were investigated.

LS的剥离片层起结晶成核中心作用并阻碍PBT球晶生长。

4. The researoh on Pa12 effect of Polyformaldehyde nucleation[J], Plastic industry, 2000,28 (4): 34-36.

PA12对聚甲醛成核作用的研究[J].塑料工业,2000,28(4):34-36.

5. POE-g-MAH and talc were more favorable for the crystallization of PA6 than PE-g-GMA, which might be related to heterogenous nucleation or reactive compatibilization.

POE-g-MAH、滑石粉较PE-g-GMA更有利于PA6的结晶,这可能与其异相成核或反应增容的作用有关;

6. The nucleation mechanism arid geometry of crystal growth of PLA plasticized by PEG of different molecular weights were about the same.

不同摩尔质量PEG增塑PLA的结晶成核机理和生长方式一样。

7. Heterogeneous nucleation of bubbles on an advancing solidification front during freezing of water containing a dissolved gas has been experimentally and analytically studied.

中文摘要本次研究目的是在探讨溶有气体的水在结冰固化过程中,在介面上成长的气泡成核现象,而这也是模拟固化中的工件上会产生的孔隙。

8. The nucleation and growth mechanism and the effect of the different modificators on the morphology of primary faced crystal are introduced.

介绍了合金的初生小晶面相的形核和生长机制,不同变质剂对其形态的作用机理。

9. Theory of nucleation when the foam has nucleation additves is also offered.

介绍了含有成核添加剂时的成核理论。

10. The progress in the research of ultrasonic effect on the formation and decomposition of natural gas hydrates, on the nucleation of ice are presented.

介绍了国内外超声波影响天然气水合物形成分解的研究进展、超声波对水成核结冰影响的研究情况;

11. The lastest shear energy nucleation theory during cell nucleation was recommended, which explained the process of cell nucleation in shear flow field perfectly.

介绍了最新的气泡成核中的剪切能成核理论,该理论较完善地解释了剪切流场中气泡成核过程;

12. Anything that creates nucleation sites for bubble formation will aid vacuum degassing, so I suspect that (gentle) use of a stir bar will be better than none.

任何产生气泡形成的成核位点的方法都会有助于脱气,所以我认为用一个搅拌棒搅拌会比没有效果更好。

13. However, oxygen precipitate nucleation and denuded zone of NCZ silicon in intrinsic gettering processes have been systematically investigated.

但是,到目前为止,国际上还没有系统地研究过微氮单晶硅在内吸杂工艺中氮对氧沉淀形核以及洁净区的影响。

14. Can you think of another example of nucleation?

你想到其他成核过程的例子吗?

15. SEM was used to observe nucleation site of Co particles, and energy spectrum analysed phase composition of white matter in endosexine of mold.

借助扫描电镜观察到细化的叶片表面的钴微粒形核核心,通过能谱分析手段,研究型壳内表层的白色物质的相组成。

16. Keywords: reactive-crystallization, calcium oxalate hydrates, induction time, nucleation, morphology.

关键词:反应结晶、含水草酸钙、感应时间、成核、晶型。

17. It considers point, line and interfacial defects in the context of structural transformations including annealing, spinodal decomposition, nucleation, growth, and particle coarsening.

其中会讨论在退火、旋节点分解、成核、成长以及粒子粗粒化等结构转变之过程中,所涉及的点、线和面的缺陷。

18. Their growth mechanism could be attributed to the substrate-induced oriental nucleation and fast growth under thermodynamic equilibrium state.

其生长过程可以概括为衬底诱导的趋向氧化锌晶核在平衡状态下的快速生长。

19. Ice nucleation active substance which was expected to be a high active freezing agent was applied in food freezing such as freeze concentration.

冻核活性物质期望成为高活性的冻结剂在食品冷冻浓缩等方面得到应用。

20. Meantime,the effects of pulse electric field on incubated nucleation of molten are posted by the cooling curves and the velocity of temperature change.

凝固冷却曲线和温变速率曲线揭示了脉冲电场对合金熔体的孕育形核作用。

21. Influences of dynamic conditions on molecule chain relaxation during molecular orientation and extrudate swell and gas bubble nucleation were analyzed.

分析动态条件对分子取向、出口膨胀中分子链松弛过程的影响,进而指出对泡沫塑料气泡成核行为的影响。

22. The reason of the pit reduced the nucleation energy is analyzed.

分析和讨论了凹坑降低金刚石核形成能的原因。

23. The relationship among polymerization methods, nucleation and growth mechanism of the particle, particle microstructure, properties of latex and films was ...

初步探讨了在复合乳化剂存在下聚合方法-成核机理-粒子微观结构-乳胶性能之间的关系。

24. In collision nucleation process, the fracture mechanism plays a major role, the crystal fracture after collision has distributed continuously.

发现二次成核过程中,破碎机理占主导作用,碰撞后的晶体碎片具有连续分布;

25. A great impact of surface diffusion on CVD diamond nucleation is discovered and investigated.

发现和研究了表面扩散对CVD金刚石成核的重要影响。

26. Meanwhile nanoparticles can significantly improve the nucleation and lower the devitrification temperatures of cryoprotectant solutions.

合适的纳米微粒还可以保护细胞内的DNA,也可以增加细胞和支架材料之间的黏附。

27. With the assumption that the sites of fracture nucleation are randomly distributed in the sample,we deduce out a set of enclosed equations for predicting the fragment number and size distribution.

同时,假设断裂成核点随机分布于样品中,依据统计原理导出了一组完备的方程组,由此从理论上给出了碎片的数目及其大小分布关系式。

28. Homogeneous nucleation is made possible by statistical fluctuations among molecular aggregates in the vapour.

同质成核作用之所以可能,是由于蒸汽中分子凝聚的统计起伏。

29. The dynamics of intragranular nucleation of ferrite in the low carbon VN alloyed steel under the compact strip production (CSP) is a new research field.

在CSP(Compact Strip Production)工艺条件下低碳钢中铁素体的晶内异质形核动力学是一个新的研究领域。

30. Compared to study on PP composite filled with modified acerate Wollastonite and granular CaCO3, talc has better strengthened and toughened effect to PP composite, because of its Lamellar structure and high nucleation.

在与针状硅灰石和粒状碳酸钙改性填充PP性能的对比研究中发现,滑石粉由于自身的片状结构和强成核作用,对填充PP复合材料具有较好的增韧、增强效果。

31. On this context, a nucleation mechanism was developed, attempting to explain the origin of martensitic nucleation in iron based alloys.

在动力学研究的基础上,提出了马氏体相变的形核机制。

32. Based on this, the research purports and methods of supersaturated water vapor nucleation and condensation on the surface of PM2.5 from combustion are presented.

在对蒸汽在细微颗粒物上的异质核化理论发展进行评述的基础上,提出过饱和水蒸汽在燃烧源PM2.5上核化凝结理论和实验研究的意义与方法。

33. The influence of bias enhanced nucleation(BEN) to the adhesion between diamond coating and WC-6%Co carbide cutting tool is researched with the microwave plasma (CVD) instrument.

在微波等离子体化学气相沉积装置中 ,研究了负偏压形核对金刚石薄膜与WC 6%硬质合金刀具附着力的影响。

34. Under DC condition the nucleation rate of recrystallization is much higher than that without current and is slightly higher than that annealed with AC current.

在施加直流电流退火条件下,再结晶速度比不施加电流退火时快得多,但施加交流电退火时的再结晶速度比施加直流电流退火时慢。

35. In the condition of high combustion temperature, coal minerals are first decomposed and gasified, and when plume is cooling, they can form lots of submicron particles though nucleation, condensation and agglomeration.

在燃烧的高温条件下,煤中的矿物质首选经历热分解和气化,当烟气冷却时,它们经过冷凝成核、凝结和团聚等作用,形成大量细粒子。

36. Diamond nucleation on ferrous substrate was realized with the inducement of diamond nucleation on silicon substrate in the hot-filament CVD system.

在硅和铁基底上同时进行CVD金刚石的沉积,利用硅基底上的金刚石成核感应金刚石在铁基底上直接成核。

37. With ultrasound excitations, the solution experiences cavitation, first nucleation, second nucleation, crystal growth, fragmentation, etc.

在超声波作用下,结晶过程经历空泡形成、超声波诱导成核、二次成核多个阶段;

38. The water transportation and ice nucleation parameters were used in the coupled water transport.ice nucleation model to predict the probability of IIF over a wide range ...

在首先获得水渗透参数及胞内冰成核参数的基础上,应用数学模型预测了多种降温速率下老鼠成骨细胞的胞内冰生成率,结果表明,实验数据与模型计算能够很好的吻合。

39. Different carbon source, nitrogen source and inorganic salts in medium affected the cell growth, the ice nucleation activity and the xanthan gum ratio.

培养基中不同的碳源、氮源和无机盐影响冰核细菌的生长、冰核蛋白的表达及黄原胶的产率。

40. The cultivation condition affected the cell growth, the ice nucleation activity and the xanthan gum ratio.

培养条件影响冰核细菌的生物量、冰核活性和产胶率。

41. Lots of experiment results showed that proper pretreatments could reduce the negative influences of Co binder phase in the substrates and improve the diamond nucleation and film adhesion, and this obtain ideal film quality.

大量实验结果表明通过适当的预处理能有效消除或抑制基体中钴黏结相的负面影响,提高金刚石的形核密度以及膜基结合力,从而获得理想的薄膜质量。

42. In the case of hydriding with long induction time, reaction site is fewer, and nucleation distribution is asymmetrical that is apt to local corrossion.

孕育期越长的氢蚀,其表面的成核点越少,成核越不均匀,且易在局部形成大的氢化物,氢化速度亦越低。

43. Sun F Z, Zhao T C, Yang J M, Cao X Y, Tang C R, Meng Q R.Species of ice nucleation active bacteria on the apricot and the relationship between their activity and flower frost.

孙福在,赵廷昌,杨建民,曹晓宇,唐朝荣,孟庆瑞.杏树上冰核细菌种类及其冰核活性与杏花霜冻关系的研究.中国农业科学,2000,33(6):50-58.

44. It can be concluded that the combined intensity between films and substrates is improved by ultrasonic pre-treating of substrates which also accelerates the nucleation of BN.

实验发现:对衬底进行超声预处理,在一定程度上可以增大薄膜与衬底结合强度,同时还可以促进氮化硼的形核,提高氮化硼薄膜的生长速度。

45. The result of experimental data analysis shows that the relationship between the nucleation site density and the minimum nucleation radius is fractal.

实验数据分析结果表明,汽化核心密度与最小成核半径之间呈分形关系.

46. The results show that, core-shell impact modifier can act as nucleation agent, which can increase the crystallinity of nylon 11 blend alloy.

实验结果显示,核-壳冲击改性剂具有成核剂的作用,有助于共混体系结晶度的提高。

47. Experimental results indicate that a high reaction temperature and quickly ascending temperature speed apparently increase the nucleation number of monoclinic zirconia in the precursor solution.

实验结果表明,高的反应温度和煅烧过程中快的升温速度明显增加了前驱体溶液中单斜氧化锆的形核数。

48. Ultrasonic irradiation can also weaken negative effect of stirring, restrain heterogeneous nucleation and avoid agglomerating proved by test.

实验还表明超声波辐射能显著削弱搅拌所带来的负面效应,抑制异相成核,避免团聚。

49. The experiment results of crystallinity in some organic solvents showed that there was a strong tendency to spontaneous nucleation in the solution of OGO.

对OGO在多种有机溶剂中的结晶性能进行了研究,结果表明在实验的几种有机溶剂中OGO的成核趋势很强,在甲苯和苯中具有较好的结晶特性。

50. The experimental results of crystallinity in some organic solvents show that there is a strong tendency of spontaneous nucleation in the solution.OSO appears a good crystalline in benzene and toluene.

对OSO在多种有机溶剂中的结晶性能进行了研究,结果表明在实验的几种有机溶剂中OSO的成核趋势很强,在甲苯和苯中具有较好的结晶特性。

51. The physical processes involved in the heterogeneous nucleation of supersaturation vapor on of charge particles are not fully understood.

对于实验值与理论值之比较也甚缺乏。

52. In the paper, the enhancing process of diamond nucleation by negative substrate bias in hot filament CVD system was analyzed.

对利用热灯丝CVD沉积金刚石膜时负衬底偏压增强金刚石的核化过程进行了分析。

53. The results of investigation into nucleation show that temperature and time have little influence on tne amount of saturant acid crystallized.

对成核过程的研究表明:成核温度和成核时间对饱和酸结晶量的影响很小。

54. The crystallography of fcc/bcc(bct) martensite transformation, including nucleation and growth, has been discussed from the viewpoint of invariant-line and O-lattice theory.

将不变线理论和O点阵理论应用于fcc/bcc(bct)马氏体相变的可滑移生长界面的设计,建立了马氏体形核与长大的 晶体学模型.

55. Nucleation mechanism of laser pyrolysis for preparing chain-of-spherical magnetic iron UFP and technology optimizing[J].

引用该论文 高晓云,陈伟雄,王伟杰,杨福明,罗河烈.

56. AFTER A BUBBLE is released from its nucleation site, it grows as it makes its way to the surface [see middle illustration at left].

当一个气泡从成核点释放出来后,它会一边奔向表面,一边不断成长(参见上页中图)。

57. When unstable thermal conditions are satisfied with the constituent fluctuations of "correct direction" and "degree", phase transformation driving force is raised and nucleation is promoted.

当成分起伏的“方向性”和“程度”满足形核的热力学条件时,相变驱动力增加,可以促使钢液形核。

58. At the end of the nucleation process micellar soap should no longer be present in solution.

当成核过程完了时,溶液中应不再有胶束存在。

59. When the maximum radius approaches to the minimum,the active nucleation sites density decreases and the nucleation boiling is restrained.

当最大空穴半径趋近于最小空穴半径时,活化核心密度减小,核态沸腾受到抑制。

60. When the particles become very large and are removed by gravitational settling, then another burst of nucleation can occur.

当粒子变得很大时,由于重力沉降而除去,然后,可能发生另一个突现的核化作用。

61. At the same time, the nucleation density affects the dendrite morphologies, especially the growth of secondary and tertiary dendrite arms.

形核密度在一定程度上影响着枝晶形态,特别是影响着二次和三次枝晶的生长。

62. The results show that Sm_2Co_(17) precipitates themselves are not nucleation centres for the formation of reverse domains.

得出:从SmCo_5析出的Sm_2Co_(17)相本身不是反磁化形核中心,析出的Sm_2Co_(17)相中存在的某些多缺陷区域可以具有很低的磁各向异性,从而成为反磁化形核中心,使内禀矫顽力下降。

63. The nucleation mechanisms and colloid stability are the key aspects of emulsifier-free emulsion polymerization.

成核机理和稳定性是无皂乳液聚合的关键。

64. The main evidence for the validity of nucleation theory rests on its ability to predict closely the critical supersaturation for most liquids in cloud chamber experiments.

成核理论正确性的主要证据在于它能在云室实验中精密地预测多数液体的临界过饱和度。

65. Experiments were carried out with different powder composition to enhance ultrasonication nucleation and also studied the effects on the electric filed emission properties.

我们使用不同的粉末组成来超音波震荡成核,并探讨其钻石薄膜成长机制与电子场发射特性。

66. Determination has been made of the ice nucleation of AgI with rainmaing and hail suppression rocket JFJ.

我们检测了JFJ型降雨防雹火箭的碘化银成冰核效率。

67. The supersaturation used is too low to produce an appreciable rate of nucleation.

所用的过饱和度太低,不能产生一个值得重视的成核率。

68. The results of SEMand EDAX indicated that, the crosssection shapes of SG had four, such as eitherradial, or with “bright nucleation”, or no “bright nucleation”, or caveme.

扫描电镜与能谱的分析结果表明,石墨球的断面有四种形态,即辐射状、有“亮心”、无“亮心”和“孔洞状”。

69. It can be presumed that the nucleation rate of HHM will increase with the rise of temperature and supersaturated ratio, when toluene used as dissolvent.

指出HHM晶体在甲苯为溶剂的过饱和溶液中的成核速率随着温度和过饱和比的提高而增大。

70. It can be presumed that the nucleation rate of HHM will increase with the rise of temperature and supersaturated ratio, when toluene used a...

指出HHM晶体在甲苯为溶剂的过饱和溶液中的成核速率随着温度和过饱和比的提高而增大。溶剂的性质也将改变成核速率的大小。

71. The heat treatment process and effects of the nucleation agent on the nucleation and crystallization were explored.

探讨了微晶玻璃的热处理工艺制度及晶核剂对核化、晶化的影响。

72. A new batch transient method is developed for the determination of crystallization growth and nucleation kinetic parameters.

提出了一种新的间歇动态法,用来测定晶体成核与生长动力学参数。

73. Introduce the application of the optical image technology in the study of formation of microcellular foams to observe the nucleation and growth of bubbles.

提出了在微孔泡沫塑料的成型研究中,利用光学成像技术来观察挤出熔体中的发泡情况的方法。

74. To unerstand precursory process before seismic fault slip, this work focuses on earthquake nucleation process on a fault plane through numerical simulation.

摘要为了把握断层上地震的前兆规律,对连续介质中断层面上的地震成核过程进行了数值模拟研究。

75. From the viewpoint of tectonic deformation and rupture nucleation, more anomalies of deformation should be found out near the source that easily accepted by many people, however, many measured data are not supported it.

摘要从构造变形及破裂成核的角度来看,强地震前形变异常理应出现在地震震源附近,而许多连续形变观测事实与这种认识往往是相矛盾的。

76. In the paper, the effect of ion bombarding on nucleation of diamond by negative substrate bias-enhanced was investigated in theory, and some experimental phenomena were explained.

摘要从理论上研究了负衬底偏压增强离子轰击对金刚石核化的影响,并用理论解释了一些实验现象。

77. Ice nucleation bacteria are important factors causing and increasing plant frost and freezing injury, but treatments that reduce the numbers or activity of ice nucleation bacteria are effective on decreasing plant frost and freezing injury.

摘要冰核细菌是诱发和加重植物霜冻的重要因子,通过减少和控制冰核细菌,在霜冻防治研究方面取得了一定效果。

78. The ice nucleation activation bacterial canker disease decreased the content of mobile proline in poplar barks, while caused the content of bark pectin to increase a bit.

摘要感染冰核细菌溃疡病的杨树树皮的果胶质含量比健株略高。病株树皮游离脯氨酸含量在总体水平上要低于健株。

79. In this paper, the nucleation process of diamond by filament CVD was analyzed, and enhanced flux of ions by negative substrate bias was investigated in theory.

摘要木文对热灯丝CVD沉积金刚石膜的核化过程进行了分析,从理论上研究了负衬底偏压增强活性离子的流量。

80. Lithographic printing aluminum plate was systematically ac electrograined to investigate the nucleation and growth of the etch pit and the formation of the etch film.

摘要本研究针对平版印刷用铝板进行一系列交流电解粗化,藉以瞭解蚀孔衍生成长机构与腐蚀膜的生长机制。

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