The experimental results showed that the maximum pressure drop and the operational pressure drop were related with particles diameter , bed height and superficial velocity , and the latter was also related with bed structure 实验表明:双喷嘴矩形喷动床的最大喷动压降和操作压降与颗粒粒径、床层高度及表观气速有关,而操作压降还与床体结构有关。
Sconed , the tangential shear velocity and the radial particle diameter distribution are derived according force balance in the annulus , in order to reduce or pervent the particle to remove toward the membrane surface 第二、根据粒子的力平衡理论推导出旋转流中粒子不向膜面沉积的周向剪切速率及径向粒径的分布规律,并指出径向速度对粒子沉积的影响。
3 . the numerical result indicated that particle distribution alone surface of inhibitor was enslaved to particle diameter . particle concentration changed from single - peak distribution to multi - peak distribution according to particle size increase ( 3 )数值计算表明两相流中粒径对绝热层表面粒子浓度分布有很大的影响,且随着粒径的增大粒子浓度由单峰分布变为多峰分布。
The fine powders of the solder alloy are one of the key materials in the smt , the requirement as following : the particle diameter is in 5 u m ~ 74 u m , the shape is spherical and the distribution of the particle size is uniform 表面组装技术( smt )已广泛应用于电子工业中,而焊锡合金微粉是该技术的关键材料之一,通常要求:粉末粒径5 74 m ,形状为球形,且粒径分布均匀。
Based on the experiment of dust removal in a granular layer at normal temperature and the analysis of the experimental results , the influence of filter particle diameter , layer thickness and filtration velocity on the dust removal efficiency was researched 摘要在常温下,采用固体颗粒层进行过滤除尘的实验研究,并对实验结果进行分析,探索了过滤介质粒径、过滤层厚度和过滤速度对除尘效率和床层压力差的影响。
The dissertation also attempts to compute the inner combustor with its jet flow together . combined with experimental results , it analyses the characteristics of the multiphase flow to the jets , especially different baffle body height , nozzle type and particle diameter 结合实验研究,文章分析了分析该燃烧器射流的气固多相流动的特点,着重研究了不同撞击块高度、喷口型式和颗粒粒径等因素对射流流场的影响。
It is the fist thing to make particles to mix with htpb equally by the mixer . many superfine particles with various particle diameters , varieties , content and surface coated had been employed to study the influence on viscosity and dispersion of the slurry 为了使加入的粉体通过捏合机的捏合,在丁羟胶中得到均匀的分散,我们分别研究了粉体的粒度、品种、组成及粉体表面经包覆处理后,对推进剂浆料的粘度、分散性的影响。
Properties of filler ( such as carrier ' s shape , particle diameter , pore size , surface area , as well as surface coverage , carbon content and bonded types of the bonded group ) and filling of chromatographic column shall directly affect retention behavior and separation effect of the articles to be tested 填充剂的性能(如载体的形状、粒径、孔径、表面积、键合基团的表面覆盖度、含碳量和键合类型等因素)以及色谱柱的填充,将直接影响待测物的保留行为和分离效果。
In this paper , based on the experi ment and research data of the injected water quality in lunnan oil field in many years , the actual situation of the injected water in lunnan oil field is analyzed and discussed and the chemical indices ( content of the iron , dissolved oxygen , sulfide , carbon dioxide and oil and corrosion rote ) , the bacterial index , the phys ical indices ( content and particle diameter of the suspended sub stance ) and the compatibility of injected water with formation water , etc . are evaluated one by one 文章立足于多年来轮南油田注入水水质的实验研究数据,对轮南油田注入水现状进行分析讨论;对化学指标(铁含量、溶解氧、硫化物含量、二氧化碳含量、含油量、腐蚀率) 、细菌指标、物理指标(悬浮物含量、悬浮物粒径)和注入水与地层水配伍性等进行逐一评定。
Abstract : on the basis of the general chromatography rate model , the effects of bi number , number , mass transfer pel number , particle diameter , injection and ratio of solute diameter and pore diameter on the chromatographic peak of taxol and the separation of taxol and cephalmonnine were simulated with computer . the essential factors affect on the chromatographic process of taxol and cephalmonnine were obtained and a more useful theory was provided to direct the chromatography separation of taxol and cephalmonnine 文摘:根据建立的液相色谱普遍化速率模型,模拟了比渥数、数、传质彼克列数、粒径、进样量和溶质分子直径同多孔粒子孔径比对紫杉醇色谱峰峰形和紫杉醇和三尖杉磷碱色谱分离度的影响,获得了控制紫杉醇和三尖杉磷碱色谱过程的主要影响因素,从而为紫杉醇和三尖杉磷碱的色谱分离提供了更好的理论指导。