查询词典 particles

Through the calculation of time used in formation of magnetic chain of panzhihua titanomagnetite particles,it was gotten that the recovery of titanomagnetite by magnetic separation essentially is the recovery of magnetic chains made of titanomagnetite particles.

计算了钛磁铁矿粒在磁场中形成磁链所需要的时间，得出钛磁铁矿的磁选回收本质上是磁链的磁选回收。

The transmissional electrometer results exhibited a well-dispersed property of the particles in water solution. The hydrodynamic diameters of the particles were accordant with design requests.

透射电镜下可见颗粒在水溶液中分布状态良好，动态激光粒度仪检测颗粒的水合直径符合设计要求。

The transmissional electrometer results exhibited awell-dispersed property of the particles in water solution.The hydrodynamic diameters of the particles were accordant with design requests.

透射电镜下可见颗粒在水溶液中分布状态良好，动态激光粒度仪检测颗粒的水合直径符合设计要求。

Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, ChinaAbstract: Desorbing bacterium from suspended particle surfaces by adding some different chemicals, such as Zwittergent3-12,EGTA and tryptone etc., and ultrasonic surging, comparing the difference of HPC value between before and after desorption, and then analyzing the size and number of suspended particles, it can be concluded that the effect of suspended particles in drinking water on HPC determination is significant.

本试验采用添加有助于解吸的化学试剂结合不同超声时间、超声温度下的超声波振荡对吸附在颗粒物上的细菌进行解吸，对比解吸前后HPC测定结果的差异，再对颗粒物数量、粒径进行分析，阐述颗粒物对HPC测定结果的影响。

This invention adds umpty conductive particles such as metal particles, carbon nanometer materials and etc into the semiconductor nanometer crystal film of the dye sensitization solar battery electrode, and solves the problem of low conducting ratio of the present semiconductor nanometer crystal film of the dye sensitization solar battery.

本发明在染料敏化太阳能电池电极的半导体纳米晶膜中加入若干导电微粒，如金属粒子、碳纳米材料等，解决现有的染料敏化太阳能电池的半导体纳米晶膜的导电率低的问题。

In order to understand the mechanism of pollution process around insulator under the wet condition better,based on the principle of computational fluid dynamics CFD, the numerical model,which was used to analyze three-dimensional two-phase uncompressible turbulent flow field around composite insulator in wet weather and convection-diffusion of dust particles,was established.Then,the dynamic simulation of the general approach,which was used to analyze solid dust particles' wet deposition process around composite insulator with application of CFD software-Fluent,was proposed.

为深入了解绝缘子外部在湿润条件下的积污机理，基于计算流体力学原理CFD建立了求解湿润气象条件下复合绝缘子外部三维两相粘性不可压缩湍流流场的基本控制方程组和尘埃颗粒对流扩散的基本方程，提出应用CFD软件Fluent可对复合绝缘子表面固体尘埃颗粒湿沉降过程进行动态模拟的一般方法。

In chapter 2, we focus on derivation of the tortuosity models for flow of Newtonian incompressible fluid in two- and three-dimensional porous media with spherical, cubic and plate-like particles by applying the geometrical method. We first present the ideal geometrical models of porous media to show the ideal and representative streamlines based on the assumption that some particles in porous media are unrestrictedly overlapped and hence of different configurations, then the average tortuosity is derived by geometrically and weightedly averaging these representative flow paths.

第二部分采用几何分析法研究了二维和三维情况下的球形颗粒、立方体颗粒和板状颗粒多孔介质中流体流线的迂曲度，首先给出多孔介质的理想几何模型，通过分别考虑固体颗粒重叠时、不重叠时以及粒子的不同排列等情形时的流体流线，然后对这些理想代表性流线的迂曲度取几何平均和加权平均，最后推导出流体流过多孔介质的迂曲度解析表达式。

An analysis is also made of the moving regular of particles, the leakage passage formation feature, and the particles displacement field and so on. The internal stability of soils is studied from the perspective of gradation. Results show that the stability of soils relates closely to the shape of gradation curves and coefficient of ununiformity.

研究得到管涌发展过程中颗粒的移动规律，渗漏通道的形成特点，流速、颗粒位移场等随水力梯度的变化特点，并从级配角度分析土样的稳定性，得到土体的稳定性与级配曲线形状及不均匀系数等因素有关的结论。

The variables in controlling the flow of microfluids are voltage and time. This study adopted the method of fast measurements、so time taken for applying voltage did not exceed ten minutes. If voltage is not carefully controlled、the microchannel may be damaged at the particle flow. During measurement、a buffer fluid with a concentration of 0.1 M was used、the current was sufficient to propel the magnetic particles through the microchannel without damage from excessive voltage. The maximal amount of microfluid particles at the junction of the separation and injection channels was obtained with a time of 5 mintures and voltage of 200V.

藉由改变不同的电压和时间来观察颗粒在微流体中的移动情形，由於这个研究是以快速检测为原则，所以将时间控制在10分钟之内；在电压的控制上面如果电压太大的话将会对微流体的管道造成损伤，降低微流体装置的寿命，并且也有可能会对里面的颗粒造成影响，所以缓冲液的浓度使用比较大的0.1 M，这样所产生的电流将足以推动磁性颗粒并且电压不会太大也不会造成管壁的伤害。

Zirconia/graphite compound mold core was prepared by the coating, in which the silicon sol was used as binder and zirconia was used as refractory materials. The application feasibility of metal particles as a coolant in the solidification process was studied, and the application of metal particles as subsidiary coolant in the liquid metal cooling of directional solidification were analyzed and studied in this investigation. The conclusions can be drawn as follows: 1 The zireonia/graphite compound cores fabricated by brushing coating which was prepared by making silicon sol agglutinated zirconia as a refractory material were casteded at 800℃and 1000℃respectively, and the results show that the strength of the mold core is strong enough to meet the requirement of practical casting.

本文研究了以硅溶胶为粘结剂，氧化锆为耐火材料来制备氧化锆／石墨复合型芯的制备工艺；并分析了金属颗粒作为冷却剂在金属凝固过程中应用的可行性、金属颗粒的冷却能力以及金属颗粒作为辅助冷却剂在定向凝固的液态金属冷却法中的应用，得出以下结论：(1)以硅溶胶为粘结剂，氧化锆为耐火材料来配制涂料，采用刷涂石墨型芯的方法来制备的氧化锆／石墨复合型芯经800℃和1000℃实际浇铸实验，结果证明型芯的强度足够满足实际浇铸要求。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。