查询词典 measure of dispersion

Based on the technique from micrometer particle dispersion, superfine particle dispersion behavior and its effect on polymere.

结合微米分散技术基础，对超微颗粒在聚合物固体中分散及其结晶研究的进展深入探讨，揭示了聚合物基-纳米复合材料的颗粒分散经过纳米前驱物中间阶段，再进行聚合复合与熔体复合，得到颗粒均匀的分散体系。

Gaussian light pulse ; dispersion ; sinusoidally dispersion-compensated system

高斯光脉冲；色散；正弦型色散补偿系统

CNTs were first pre-treated using acid solution (HNO3) to obtain CNTs functionalized with carboxylic groups. Subsequently, the stearyl alcohol was grafted onto CNT with the assistance of dehydrating agent, N,N'-dicyclohexyl-carbodiimide. Excellent dispersion in organic solvents such as acetone, THF, and chloroform was found for the modified CNTs (CNT-C18). In addition, the PBS/CNTs nanocomposites were then prepared through simple melt-blending. Mechanical properties, thermal behavior, conductivity of resultant polymer/CNT composites were investigated. The results show that excellent dispersion of nanotubes in the PBS matrices was achieved.

为了增加多壁奈米碳管在复合材料中的分散性，将碳管表面进行化学修饰，首先将多壁奈米碳管浸入HNO3溶液中，进行酸化，使碳管表面带有羧酸的官能基，然后再加入十八烷醇，在温和的条件下，藉由N，N'-二环己基碳二亚胺(N，N'-dicyclohexyl- carbodiimide，DCC)脱水剂脱水，使碳管和十八烷醇之间产生酯基的化学键结，改质后的碳管可以分散在acetone、THF、chloroform…等有机溶剂中，结果显示成功的利用DCC脱水剂完成碳管的改质。

The stability of nano-alumina aqueous dispersion is tokened by spectrophotometer and particle size distribution instrument. It is proved that when condition is dispersant PMAA =0.4%, pH =9, nano-γ-alumina content = 4%,ultrasonic for twenty minites, excellent stable nano-alumina aqueous dispersion can be acquired.

用分光光度计和粒度分析仪表征了纳米粒子水分散液的稳定性，结果表明纳米γ相Al2O3浓度为4%，分散剂为阴离子聚电解质，用量0.4%，PH=9，采用超声波分散20分钟得到最好的分散效果，纳米颗粒的平均粒径为205nm。

The study covers the vertical displacement distribution character of each mode of Rayleigh wave, theoretical dispersion curve character of multi-modes Rayleigh wave and the characters of the max-mode Rayleigh wave dispersion curve in different layers structure, which are velocity increasing with deep, high velocity layer within underground, low velocity layers within undergroan and high velocity surface layer, within the depth of 15 meters.

研究了地层速度随深度递增型、地层中有硬层或软夹层型、表层为高速的公路型等4种地层结构在15m深度内，瑞利面波各阶模态的位移幅度分布特征、多阶模态面波的理论频散曲线特征以及不同地层结构上的&最大模&面波频散曲线的特征。

U10Mo-Al dispersion fuel has the advantage of high density, high burnup, good conductor of heat and so on, which is an important candidate dispersion fuel in many countries. The resistance irradiation swelling is the key factor to determine whether the fuel can be usable and the lifetime.

U10Mo-Al弥散型核燃料具有高密度、高燃耗、热导性好等优点，是目前各国研究和开发的重点新型核燃料，其抗辐照肿胀性能是决定该燃料是否可用以及使用寿命的关键因素。

The linear dispersion relation of the enhanced equations is the Pad\'{e} [4,4] expansion of the linear Stokes dispersion relation, the accuracy of which is acceptable even when the relative water depth is as large as 1.0. Its nonlinear property and shoaling gradient are also improved.

改进后方程的线性色散关系达到了一阶Stokes波色散关系的Pad\'{e}[4，4]近似，在相对水深达1.0的强色散波浪时仍保持较高的准确性，并且方程的非线性和线性变浅率都得到了不同程度的改善。

The results show that: processing aids which mainly consist of unsaturated aromatic hydrocarbon and aliphatic hydrocarbon resin are able to improve the dispersion of the wood flour in PVC matrix, and amend the interfacial compatibilities between PVC matrix and wood flour, and enhance the mechanical and processing properties of PVC/ wood flour composites; Processing aids which mainly consist of calcium soap and saturated fatty acid amide mixture, as well as fatty alcohol and fatty acid ester mixture, are also able to improve the dispersion of the wood flour in PVC matrix and enhance the processing property of the composites, but when the use amount is big, they have adverse effects on mechanical properties of the composites.

结果表明，以不饱和芳香族碳氢化合物、脂肪烃树脂为主要组分的加工助剂，能够提高木粉在PVC 基体中的分散性，改善木粉与PVC 的相容性，从而明显提高PVC木塑材料的力学性能和加工性能；以钙皂和饱和脂肪酸酰胺混合物、脂肪醇和脂肪酸酯的混合物为主要组分的加工助剂，对木粉的分散性和复合材料的加工性能有一定的改善，但其用量较大时对复合材料的力学性能有不利影响。

Methods After the solid dispersion of cinnamon oil was prepared by melting method, the effects of the process variables and formulation variables on solid dispersion and dissolution were investigated.

应用熔融法制备固体分散体后，以溶出度的测定为主要评价指标，采用正交设计对工艺及处方优化，并用红外光谱法考察药物与载体是否具有相互作用。

It is important in multi-wavelength systems to have enough dispersion to break up cross wavelength interference problems but not so much dispersion that high bit rates become costly to transmit.

多波长系统中必须有足够的色散率来解决交叉波长干扰问题，但是也并不需要这么高色散率使比特传输的成本大大增加。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？