速度沉降

目前国内外已报道的分选方法仅有以下三种方法：筛选法、花粉在中间介质中分离的速度沉降法、花粉的静电分选法（主要针对分选2n花粉而设计的）。

Only there are three kinds of methods in separation that has been reported both at home and abroad at present sieve method , separation of pollens by velocity sedimentation of pollens , electrostatic separation of pollen ( which is designed mainly use for 2n pollen ) .

根据花粉直径不同建立的2n花粉与n花粉分离方法主要有静电花粉分选方法、筛选法和速度沉降法。

Based on the diversity of the diameter , three methods are made to separate the pollens , they are the electrostatic separating method , the screening method and the sedimentation velocity method .

根据Stocks模型，对混床用阳阴树脂沉降速度、沉降比进行计算和分析。

Based on Stokes Law , settling velocity and ratio of settling velocity of cation and anion exchange resin in mixed bed are calculated and analyzed .

论文首先采用引入分散剂的方法初步研究了分散剂对粉体分散性能的影响，通过显微镜观察法、沉降速度与沉降物体积法对粉体分散性能进行表征。

And the dispersion of the powder was characterized by the use of microscope observation , settling velocity and sediment volume methods .

介绍了沉降槽的设计条件，计算了酸不溶物的沉降速度和沉降面积，总结了改造效果。

Design conditions of settling tank were introduced , settling speed and settling area for acid insoluble were calculated , and the reformation effect was summarized .

并根据油气分离器内气雾流流态波动较大、参数难以确定的特点，给出了液滴沉降速度、沉降效率和沉降区的简易计算方法。

On the basis of fairly large of the fluctuation of gas-fog flow state , the article gives simple calculation methods of droplet settling speed , settling efficiency and settling area .

坝体堆载的大小与速率影响地基土的固结速度、沉降变形、承载力、工期长短以及堤坝的稳定安全性。

The magnitude and velocity of the loading have a strong effect on the consolidation velocity , settlement , bearing capacity of ground , construction period and the stability of dam slope .

结果显示：分散剂的引入能改善滑石粉的分散性能，从显微镜观察和沉降速度与沉降物体积法的结果中得出分散剂的最佳添加量为滑石粉质量分数的3%。

The results demonstrated that the application of the dispersant can improve the dispersion of talcum powder . The amount of the best insertion was 3 % at from the conclusion of microscope observation , settling velocity and sediment volume .

研究采用机理研究和室内试验，产品开发与现场应用相结合的方法，取得的主要成果有以下几方面：（1）建立了幂律液颗粒沉降速度，沉降时间和雷诺数的关系式。

This study adopts a combination of theoretical and experimental methods , as well as the product development and field application , and the main results achieved are as follows : ( 1 ) It established the relationship of power-law fluid particle settling velocity , sedimentation time and Reynolds number .

试验结果表明：（1）低G值搅拌试验能够有效提高活性污泥的沉降速度，缩短沉降时间。

The result shows that : ( 1 ) Mixing test with low G value can effectively improve the settling velocity of activated sludge , and shorten the settling time .

采用界面法研究了水、钛白粉（R980）和分散剂（731A）组成的浆料体系的沉降过程，通过沉降曲线进一步得到体系的沉降速度和最终沉降比。

Sedimentation process for titania pigment and polyacrylic dispersant water-borne system was studied by way of interfacial method . From sedimentation curves , sedimentation rate and the final sedimentation ratio were obtained .

填料膨胀率的大小与液体流量、填料的流化速度及自由沉降速度有关。

The expansion rate is related to liquid flow rate , fluidization velocity and free descending velocity of the packing material .

通过试验及研究分析，认为采取提高高填方路基的压实度，可以加快高填方路基的沉降速度，减少沉降量。

Through test and study , the paper considers that growing the compactness of high earth fill subgrade could speed up the settlement velocity of high earth fill subgrade and reduce subgrade 's settlement value .

如果上覆岩层质量较好，其在开采过程中作为支撑拱起到的作用就越好，可以有效减缓地表沉陷速度和减少沉降的范围。

If the roof rock has a good quality , it will act perfectly as a supporting arch during underground mining , which can effectively slow surface subsidence and reduce the scope of surface subsidence .

结果表明，矿粒表面疏水化后，在水中的自由沉降速度和干涉沉降速度均上升，这与理论分析结果相一致。

The results show that the free settling velocity and the hindered settling rate of fine particles in water have increased after the mineral surface became hydrophobic . This is in keeping with the theory analysis results .

随着分散剂浓度的增加或储存温度的降低，沉降速度降低，最终沉降比增加。

With increase of dispersant concentration or decrease of storage temperature , sedimentation rate decreased and final sedimentation ratio increased accordingly .

其中早期空气排出阶段进展速度快，地表沉降速度也快，但吹填土结构强度的提高有限。

The forepart air discharge stage develops very quickly , and the surface sedimentation rate is quick too , but the increase of structure strength of hydraulic fill is limited .

采用了离心力加快沉降速度，粒子的沉降速度大，均匀低速的假设条件不再满足，理论计算模型和实际情况偏差大。

Thirdly , because of the centrifugal force , particles in the magnetorheological fluid sediment at a speed faster than the assumed low and uniform speed in the theoretical sedimentation model .

该技术在水下软基处理工程施工中干扰小，施工速度快，后期沉降小，因而可缩短工期，提高工效。

It is characterized by its limited interference in treatment of soft foundation under water , high speed of construction , less settlement at later stage , shorter construction duration and high efficiency .

分析了机加池沉降比低的原因，提出了改造桨板，以均匀速度梯度，提高沉降比。

This paper analyses the cause for low ratio of sediment concentration in accelerated clarifying pond and suggests that agitation paddles be transformed and velocity gradient be well-distributed to improve the ratio of sediment concentration .

聚电解质调理法能显著加快泥水分离速度，提高污泥沉降性能，是现今应用最为广泛的调理方法，但却无法解决调理后污泥滤饼含水率偏高这个问题。

Polyelectrolyte conditioning is a widely used conditioning method . It can speed up the rate of water separation and improve settlement performance significantly . However , it has a problem that higher water content in sludge cake after conditioning .

数值研究得出在主流汽体横掠波型板汽水分离器竖直板壁情况下，板壁水膜厚度、平均速度等参数与汽流流动速度和沉降率之间的关系。

By numerical simulating movement of water film on separa - tor-corrugated plate , under main steam transverse sweep situation , the relations between the water film pa - rameters and wet steam velocity , humidity had been obtained .

介绍了用激光多普勒速度测量（LDA）的方法测定微波萃取器内流体的沉降速度和旋转速度，得到沉降速度和旋转速度在内、外环隙不同层数间的分布，研究了流量对湍流强度的影响；

A totally new microwave assisted extractor apparatus was designed . LDA ( Laser Doppler Anemometer ) method is used to measure settling velocity and rotary velocity of the fluid in the extractor and the settling velocity and rotary velocity of different layers in annular space are obtained .