查询词典 dispersion

TEM, FTIR, spectrophotometry characterized the morphology, structure and dispersion stability of nanoparticles respectively. The results show that the inorganic nanoparticles in the aqueous solution can redisperse more effectively through ultrasonic irradiation than by conventional stirring, which was the basis for monomers to polymerize on the surface of nanoparticles. By selecting proper nanoparticles and monomers, the long-stable latexes were successfully prepared.

研究了超声辐照下多种纳米粒子(SiO〓、Al〓O〓、TiO〓)在水体系中的分散、粉碎及活化等各种行为，采用TEM、FTIR、分光光度法等对纳米粒子的形态、结构、分散稳定性进行了表征，证明超声辐照比常规搅拌更有效地实现无机纳米粒子在液相中的分散，为单体在纳米粒子表面的聚合创造了条件。

Colloidal gold was reductively prepared by sodium citrate,sodium citrate-tannin,ascorbic acid and sodium borohydride respectively.And corresponding gold particles size,morphology,dispersion,and stability of the samples were characterized and compared.

分别采用柠檬酸钠还原法、柠檬酸钠-鞣酸还原法、抗坏血酸还原法、硼氢化钠还原法4种方法制备了粒径为十几纳米的胶体金，并对制得的纳米胶体金粒径大小、分散度、稳定性及形貌进行了表征和比较分析。

He TiC could reprecipitate again with excess milling and Cu crystal decreasing. TiC-dispersion-strengthened Cu-based composite powders have been prepared from TiC-Cu and Cu-Ti-C mixed powders by MA. The composite powders were prepared into composite materials by pressing, sintering and heat-extrusion.

IC混合粉末经机械球磨后，再经压制、烧结和热挤压制备成 n 弥散强化铜基复合材料。

Then, nanoparticles were prepared with a reprecipitation method and tested. We found that the nanoparticles with small size and lower poly-dispersion index can be prepared though shortening deposited time, decreasing concentration, increasing deposited temperature and adding surfactant.

利用二次沉淀法制备出三种有机分子不同粒径的纳米微粒，通过改变时间、浓度、温度、表面活性剂等实验条件分析这些因素对纳米微粒粒度的影响，发现缩短放置时间、减少有机稀溶液的注入量、升高放置温度、加入表面活性剂可以得到小粒度，低分散度的纳米微粒。

This will result in the fluctuation of the sensitivity of the system because of the existing of the dispersion of the reflection-induced retardance.

由于反射膜上产生的反射相移的色散特性，会使光学电流传感器的灵敏度随光源波长的变化而改变。

The six kinds of nanoparticles water dispersion were as follows:rotenone/carboxymethyl chitosan-grafted-ricinoleic acid(Rot/CMC-g-RA), azadirachtin/carboxymethyl chitosan-grafted-ricinoleic acid(Aza/CMC-g-RA),capsaicin/ carboxymethyl chitosan-grafted-ricinoleic acid(Cap/CMC-g-RA),rotenone/ricinoleic acid sodium,capsaicin/ricinoleic acid sodium,azadirachtin/ricinoleic acid sodium.

分别为：鱼藤酮/羧甲基壳聚糖接技蓖麻油酸共聚物(Rot/CMC-g-RA)、辣椒碱/羧甲基壳聚糖接技蓖麻油酸共聚物(Cap/CMC-g-RA)和印楝素/羧甲基壳聚糖接技蓖麻油酸共聚物(Aza/CMC-g-RA)纳米粒子水分散制剂，以及鱼藤酮/蓖麻油酸钠、辣椒碱/蓖麻油酸钠和印楝素/蓖麻油酸钠纳米粒子水分散微乳液。

Chinese scientists have developed a method to separate mixtures of metallic and semiconducting single-walled carbon nanotubes by a two-step dispersion-centrifugation process.

我国科学家已经开发出一种方法，独立的混合金属和半导体单壁碳纳米管由两步分散离心过程。

The dispersion relates to water saturation in shaly sand formations.

在特定的频段，泥质砂岩的复电阻率存在明显的频散现象，这种频散与地层含油饱和度的关系密切，是目前复电阻率测井的基础。

In this article, HA was treated with silicane coupling agent. The influences of the surface modification on the particle size and the stability of the dispersion system were studied.

PHBV ； HA ；本文采用硅烷偶联剂对羟基磷灰石进行了表面修饰，分析了表面修饰对HA的粒径及分散体系稳定性的影响。

Transmission of Gaussian light pulse in sinusoidally dispersion-compensated system is studied by numerically simulating the solution of non-linear Schroedinger equation.

从含非线性薛定谔方程出发，通过数值模拟，研究了高斯光脉冲在正弦型色散补偿系统的传输，得到结论：当系统的二阶色散的平均值为零时可得到高斯光脉冲的稳定传输。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷