Its important to the environmental protection department to measure particle size range distribution and concentration of suspended particle in air. 检测空气中悬浮颗粒物的粒径分布及浓度是当前环境保护部门的重要工作,这两个参数直接反映了当前空气的质量。
This paper analyzes the particle size of treated produced water by conventional process, and gives a range of particle size which can be removed by typical processes based on median size. 本文在对油田采出水实际运行的常规处理工艺出水中颗粒物粒径分析的基础上,以粒径中值为基准,给出了几种典型工艺能够去除的颗粒物粒径范围。
The experiment results show that the output signal of the system has high accuracy in phase difference, frequency and amplitude in wide frequency range and it meets the demand of particle detection. 基于锁相放大技术的颗粒检测需要频率范围宽、移相精度高的移相信号源。
These results show that the range of particle size of TiO2 is from 20 to 30 nm. 所制样品的组成与微观结构用X射线粉末衍射(XRD)和透射电子显微镜(TEM)表征,结果表明TiO2样品的粒径范围在20~30nm之间。
Based on numerical calculation results, selection range of ignition charge mass with different particle content is given. 根据数值计算结果,给出了不同产物颗粒含量下的点火药量选择参考范围。
In order to find most local optimization, it is necessary that particle initialization position is random and spread over range of variable, thus chaos sequence is used in particle initialization. 要想求得尽可能多的局部优化峰值,就要求微粒群中微粒的初始位置分布具有随机性和遍历性,为此采用混沌序列设置微粒初始位置;
Mass fractal range of silica xerogels decreases and colloid particle increases with the increase of additives. 对样品质量分形来说,随着添加物量的增多,掺杂SiO2干凝胶分形特性范围逐渐减小,构成干凝胶的胶体颗粒尺度逐渐增加;
For a long time, CP series of supersonic superfine air flow milling and grading machinery have faced up to such problems as improve high grading precision, increase output and reduce range of particle distribute. 提高分级精度,增加产量,缩小产品的粒度分布范围是CP系列超声速超微气流粉碎分级机一直以来面临的问题。
Dependence of long range correlation on rapidity gap and number of particle sources in high energy H-H collisions 高能强子碰撞中长程关联对快度间隔的依赖性与粒子源数
The results show that La dopant not only greatly ( inhibits) TiO_ ( 2) crystal phase transformation from anatase to rutile, but also makes the optic response range of TiO_ ( 2) particle expand to visible light. 结果表明,La掺杂不仅抑制了TiO2由锐钛矿相向金红石相的转变,而且使TiO2的光响应范围向可见光区拓展。
The results show that within certain range, the change of particle diameter of clay only affects some mechanical properties of clay-rubber masterbatch notably, this effect varies with different kind of clay. 结果表明,在一定范围内,粘上粒径的变化仅对粘土胶的某些力学性能产生明显的影响,对不同粘土样品,这种影响有差异。
The surface tension of synthesized whale wax oil was low and the particle size range of the oil was 10-100 nm. Particle size range of sulfonation lanolin was 20-100 nm. 合成鲸蜡油表面张力小,乳液粒子的大小在10-100nm之间,磺化羊毛脂乳液粒子的大小在20-100nm之间。
In particle sizing by dynamic light scattering method, to adjust properly the inverse range of inverse algorithms towards real range of particle distribution is one of the main approaches to improve inverse results. 恰当地调整动态光散射颗粒测量反演算法的反演范围,使之趋近真实颗粒分布范围是改善反演结果的主要途径之一。
In this kind of long range interaction system, the movement of the particle can be affected by each other ( correlated hopping). 由于这种长程相互作用的存在,系统中每一个粒子的运动都会受到其它粒子的影响(关联跳跃)。
At first the experiment and analysis of compaction characteristics of gangue have been made, thereby the range of particle size and gradation of filling gangue have been made sure, to provide the theoretical basis to the design of filling system. 首先对矸石的压实特性进行了实验及分析,从而确定了充填矸石的粒径范围和级配,为该充填系统的设计提供了理论依据。
Our calculated results are approximately in agreement with the experimental data of the PHENIX Collaboration. Thirdly, in a wide energy range, the dependences of charged particle pseudorapidity distributions on impact parameter and center-of-mass energy are studied. 理论计算结果较好地符合了PHENIX合作组的实验数据。最后,在较宽的质心能量范围内,研究了带电粒子的中心度和快度的依赖关系。
In a certain range of dye concentration, dye particle size will increase with the sodium hydrosulfite, sodium hydroxide and salt concentration increased. 在一定浓度范围内,染料隐色体的粒度分布会随着保险粉、氢氧化钠和盐的浓度的增加而增大。
Aiming at physical characters of the milling-planing particles, including range of particle size, density change and the dressing of the dust, I mainly studies on the structure and transportation performance of the suction conveying. 主要针对特定的铣刨碎料的物理特性,包括粒径范围、密度变化及裹敷情况,重点研究了吸送系统的结构和输送性能。
The impact of experimental parameters on the measurable particle size range, the maximum measurable concentration of the particle field and the uncertainty of particle diameter measurement is analyzed for a given experimental system, and an optimized experimental system can be designed. 3. 分析了实验系统参数对可测粒径范围、最大可测粒子场浓度及粒径测量不确定性的影响,给出了设计最优化实验测量系统的方法。
With the increasing volume ratio, the wider variation range of particle size, or the larger average particle size of the hard-phase, this alloy often exhibits higher strength. 随着硬质相体积分数增加、分布范围的加宽、以及颗粒尺寸的增大,合金表现出更高的强度。
After treatment, the cationic demand ( CD) of the DCS water decreased dramatically, the particle size distribution of DCS moved to the range of small particle size, the turbidity of DCS water decreased and the conductivity of DCS water increased. 经处理,DCS水样的阳离子需求量(CD)明显减少,胶体粒度分布向小粒径方向移动,电导率上升,浊度下降。
However, the relative short range of alpha particle and auger electron limits the energy deposited in surrounding cell. 但α粒子和俄歇电子较短的射程限制了α核素和俄歇电子核素对周围细胞的交互作用。