查询词典 aggregation

The experimental results showed that the superfine powder of AP made by this way reduced its hydroscopicity highly and AP after stored for 30 days in the air,has no aggregation and its particle size is about 2.5μm.

试验结果表明，采用上述工艺方法制备的超细AP粉体的吸湿性大幅降低，放置一段时间后（30d），无团聚现象，其粒度可达2.5μm左右。

In the aggregation process of polymer chains, when the time scale for the chain impenetration is far shorter than that for the chain collision, the polymer chains will aggregate to form spherical clusters.

对于高分子单链的聚集而言，当链贯穿的时间尺度远小于链碰撞的时间尺度时，链在聚集时就会相互缠结形成球形的聚集体。

Chain aggregation into polymeric micelles inaqueous solutions was observed by ~1H NMR, and the morphologie and size of themicelle was also studied by TEM and DLS.

以线性或星形PDMAEMA同时作为稳定剂和还原剂，水为溶剂，在室温下合成了分散性很好、尺寸均匀的银纳米粒子。

Because of the open and incontrollable nature of internet resources, the iVCE has the dynamic and inconsistent characteristics of on-demand aggregation and autonomic collaboration. Thus the traditional security mechanism which often needs central-based official certificate is unable to meet the requirement of iVCE.

在虚拟计算环境中，服务提供者和服务请求者没有预先定义的授权关系，交互的双方必须在一些不确定的因素下做出安全决策，因此，信任是开放环境下有效交互的前提，这个过程和人类社会生活中基于合作方不确定期望行为的信任决策是相似的。

This observation supports intermolecular aggregation of long chain indoles in poor solvents, The microscopic polarity in aggregates is similar to that in cyclohexane. The distribution of indoles between bulk solution and aggregates was determined by time resolved fluorescence technique.

表明长链吲哚衍生物在混合溶剂中发生簇集，簇集体中微环境的极性和环己烷相似，利用时间分辨荧光光谱计算出长链吲哚衍生物在溶液本体相和簇集体中的分布。

The structure of the composite was characterized and analyzed by XRD, FTIR and TG. The test results proved that the structure of bentonite did not change except that the interlamellar spacing increased a little during its aggregation. The dispersion property and thermal stability of the composites was enhanced thereby.

使用X射线衍射、红外和热重对复合材料的结构进行了表征和分析，结果表明，膨润土在聚合过程中除了层间距有所增大外，基本结构不变，而且分散度提高；吸水性复合材料的热稳定性提高。

The formation mechanism for the C-PPV aggregation we proposed is: complex between K+ and the crown ether derivatives in the C-PPV brings two polymer chains closer together, and the K+ ions create interpolymer bridges, forming aggregations in the solution.

本文合成了可溶的带冠醚取代基的聚苯撑乙烯，其中冠醚基团的氧原子直接连在PPV主链上苯环的2、3位，并研究了聚合物在K~+存在下的自组装形成聚集体的行为。

The experimental results showed that SiC ultrafine powder was synthesized at 1500℃for 120 minutes by used rare earth lanthanum as additive. Its primary particle size was about 100nm and aggregated particle size was about 360nm and the particle shape was regulation, non-aggregation and well dispersibility. While the rare earth ceria used as the additive, SiC ultrafine powder was synthesized at 1500℃for 150 minutes but the particle shape was irregulation and seriously agglomerated and had numerous crystal whiskers.

实验结果表明：以稀土镧为添加剂时，在1500℃×120min合成工艺下，可以合成出一次粒径为100nm左右，二次粒径为360nm的SiC细粉，且SiC粉体颗粒形状规则，无团聚，分散性好；以稀土铈为添加剂时，在1500℃×150min合成工艺下，也可以得到单相的SiC，但SiC粉体颗粒形状不规则，有大量晶须存在，且团聚严重。

Result 1 Magnetic nanoparticles, magnetic nanoparticles modified with antisense oligodeoxynucleotide of human telomerase reverse transcriptase induced HL-60 tumor cells to apoptosis, we could see typical morphologic change of apoptosis cells: karyopyknosis, chromation"s condensing and aggregation in nuclear, forming crescent-shaped or annulus structures to lean on edge of cell nucleus"s membrane and posing apoptosis body by Atomic Force Microscope, Fluorescence microscope, transmission electron Microscope 2 There was a significant difference compared with control group(p.01), inhibition ratio had significant positive correlation with medication dosage and time ;during 0.8-8μM dosage amplitude, inhibition ratio accrescenced by dosages increasing. However, the inhibition ratio would decrease when dosage over 8-80μM.

结果 1 磁性纳米粒子、修饰有端粒酶反义寡核苷酸的磁性纳米粒子诱导HL-60细胞发生凋亡，原子力显微镜、光学显微镜、荧光显微镜和透射电镜下均观察到HL-60细胞呈现典型的凋亡细胞的形态变化：细胞核固缩，核内染色质浓缩、凝聚、形成新月形或环状结构紧靠在细胞核膜边缘，并形成凋亡小体。2 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子对HL-60肿瘤细胞的生长和增殖有明显的抑制作用，与对照组相比有显著性差异(p＜0.01)，在剂量为0.8-8μmol／L范围内，抑制率随剂量的增加而增加，当剂量超过8μmol／L时，抑制率反而下降；3 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子可增强p53基因的表达活性，引起DNA降解损伤，反向调节细胞周期活动，促使细胞从G0期进入G1期，抑制肿瘤细胞的生长。4 修饰有端粒酶反义寡聚脱氧核苷酸的量子点能通过内吞作用进入HL-60肿瘤细胞的细胞核，可以在细胞内进行定位和促进HL-60肿瘤细胞的凋亡。

By fitting the models of semivariogram of them and analyzing the patterns, it was found that the nugget range of macropterous SBPH and larval SBPH were approaching to that of spiders, as well as the range of structural intensity, but the nuggets of SBPH were not approaching to that of spiders, neither the structural intensity. The spatial pattern of larval SBPH and spiders were aggregation, but that of macropterous SBPH was random sometimes.

通过变差函数模型的拟合及空间格局的分析，得出灰飞虱长翅成虫、若虫与蜘蛛的变程范围相近，结构性强度的范围相近，但同一时间灰飞虱与蜘蛛的变程和结构性强度则均不尽相同；灰飞虱若虫与蜘蛛自始至终为聚集分布，但灰飞虱长翅成虫与蜘蛛的分布型则有差异，在某些时间为均匀分布。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。