粒子

On the hopeful 21st century, the rapid development of information, biotechnology, energy resources, environment, advanced manufacturing technology and national defense have produced the new demand for materials. More and more small size of materials will meet the demand of miniatured, intelligent, highly integrated, densely memorized and super fast transmission element. Aerospace industry, up-to-date military equipment, advanced manufactured technology and so on has required better and better properties.

中文题名有机高分子－无机纳米复合粒子改性高分子材料的力学性能－相态与群子标度之间关系的研究副题名外文题名 Studies on the relationship of mechanical properties-morphology and sub-cluster parameters of polymer materials modified by organic polymer-inorganic nanocomposite particles 论文作者权英导师金日光教授学科专业材料学研究领域\研究方向学位级别博士学位授予单位北京化工大学学位授予日期2002 论文页码总数177页关键词纳米材料高分子材料纳米复合材料纳米粒子馆藏号BSLW /2003 /TB383 /7 在充满生机的21世纪，信息、生物技术、能源、环境、先进制造技术和国防的高速发展必然对材料提出新的需求，元件的小型化、智能化、高集成、高密度存储和超快传输等对材料的尺寸要求越来越小；航空航天、新型军事装备及先进制造技术等对材料性能要求越来越高。

The results show that the influences of the gas flow rates on particle velocity and temperature are the most salient, and the particle velocity increases with the increase of the gas flow rates.

在诸因素中，气体流量对粒子速度和温度的影响最为显著，随着主气流量的增加，粒子速度有所增加。

By the method of dividing niches,niching particle swarm optimization has kept the diversity of species,overcome the drawback of basic PSO,such as being subject to falling into local optimization and having the poor convergence speed,and so improved the ability of seeking global optima.

小生境粒子群算法通过划分小生境的方法，保持了物种的多样性，克服了粒子群算法容易陷入局部解，后期收敛速度慢的缺点，提高了算法的全局寻优能力。

It can be found that the nano-SiO2 does not behave as the nucleating agent in PET which is mentioned in some reference.

与微米粒子不同，PET/纳米体系中的所有纳米粒子的运动是长程关联的。

The structure and the phase of Al203/Zr02 plasma spraying powder and ceramics coating with doping nanometer and prefabricating were investigated by modern material analysis means such as SEM and XRD etc. The results showed that the powder structure using plasma spraying doping nanometer was micrometer cladding nanometer in its surface and little nanometer regiment structure.

利用XRD、SEM等观察分析了纳米掺杂A12O3/ZrO2粉末及等离子喷涂涂层组织形貌及结构，结果表明，Al2O3-ZrO2等离子喷涂粉末是由纳米包覆微米级粒子及少量的纳米团聚体球团粒子构成。

You can modify the particle color in different ways, such as by using a simple gradient or by randomizing and turbulizing the particle color values.

可以通过不同的方式修改粒子颜色，例如可以使用简单的渐变或者是随机和紊乱对粒子的颜色值进行设置。

The layers between-5.9——8℃ are composed of a large number of column ice crystals and small number of riming particles,and those between-8——12℃ are almost rimed particles,and those above-20℃ were primarily dentritic ice particles.

在-5.9～-8℃层，主要是柱状冰晶和少量结淞体，-8～-12℃层显示基本为结淞粒子，-20℃层左右表现出较多的枝状冰粒子。

Numerical results indicate that the sheath expands faster than dust-free sheathes.

因为尘埃粒子的充电时间长于离子响应时间或者负脉冲时间，尘埃粒子的充电过程对鞘层的形成将有很大影响。

The results showed BaTiO3 nanoparticles could not be dispersed uniformly in polyimides, the particles trended to form clusters.

研究结果表明，钛酸钡纳米粒子在聚酰亚胺基体中的分散并不是很均匀的，粒子趋向于形成团聚体。

The effects of particle size distribution and particle figure on the viscosities of polymer polyol s were studied.

分析了聚合物多元醇中分散粒子的粒径分布和粒子形状对体系黏度的影响，通过计算提出了获得低黏度产品的工艺配方及控制条件。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。