查询词典 atomization

This new research has advanced atomizer design and optimized atomization and spray processes.

这新研究前进喷雾器设计并且乐观atomization 和水雾过程。

Based on the theory of large eddy simulation and the method of VOF , the initial breakup process of fuel liquid jet, which eject from the nozzle exit at the time scale of micro-second level, is investigated. The mechanism of primary atomization is analyzed, and the initial breakup model of liquid jet is presented. By modeling and numerical simulation of atomization for a diesel nozzle under the given conditions, the initial umbrella-like spray shapes are obtained, which fits better with the experimental results. Meanwhile, the droplets secondary breakup process, such as leeward RT breakup, dumbbell-like breakup and droplets coalescence, etc. are exhibited visually.

基于大涡模拟LES理论和VOF方法，考察了燃油喷雾初始时刻即时间尺度为微秒级的液柱破碎过程，分析了初始破碎的机理，给出了该时间尺度下液柱初始破碎过程的模型；通过对一特定条件下的柴油机喷油器的建模和喷雾过程的大涡数值模拟，获得了液柱初始时刻"伞状头部"的喷雾形态，所得计算结果与相应的试验数据符合较好；数值模拟还直观地展现了液滴背风RT破碎、哑铃型破碎以及液滴的聚集融合等液滴的二次雾化过程。

On the other hand,using centrifugal atomization mode would improve the effect of atomization and penetrability.

对于回潮过程，文中提出了采用离心式加湿方式改进水雾化效果，提高渗透性能。

After analysing the flight, cooling and undercooled solidification of multistage atomized droplets, this paper adopts Newtonial cooling, highly undercooled heterogeneous nucleation and steadystate continuous growth model to calculate and simulate numerically the thermal history of droplets and effect of main atomization process parameters during multistage atomization. The results indicated that large undercooling occur mainly during later stage of multistage atomization while recalescence and rapid quenching occur mainly during forced cooling stage.

在分析多级雾化过程雾化微滴的飞行冷却和过冷凝固特点及规律的基础上，本文采用了牛顿冷却、大过冷非均匀形核及稳态连续生长模型，对纯铝多级雾化过程中微滴热历史以及主要雾化工艺参数对其的影响作用进行了数值分析和计算，结果表明：大过冷主要是在多级雾化后期形成的，再辉和急冷则主要发生在强制冷却阶段。

Discharge atomization as important human-factor effects the stability of sloe, on account of dissimilarities between discharge atomization and rainfall.

对于处于糯扎渡水电站泄洪消能区的斜坡，在长年受到暴雨作用下又叠加泄洪雾化的影响，构成复杂的潜在诱发斜坡失稳的因素组合。

70 patients with postoperative recovery were included in the study. They were divided into two groups: experiment group and control group, each of which contained 35 cases. In experiment group, we deploied the warm atomization inhalation; and control group with common atomization inhalation.during each period of treatment, We observed the curative effect of each group with expectoration capacity, maximum inspiratory volume , saturation of blood oxygen and sternite .

术后卧床的恢复期患者70例，随机分为实验组与对照组；实验组35例患者采用加温雾化护理治疗，对照组35例采用常规雾化护理治疗；以排痰量、最大吸气量、血氧饱和度、胸片为观察参数评价两种雾化方法的治疗效果；采集数据分别以t检验和卡方检验方法进行统计学分析处理。

Moreover, the hot compressive deformation behavior of the RS/PM AZ91 magnesium alloy and AZ91 alloy matrix composite were also investigated, the conclusions are drawn as follows:1. The processing parameters of the atomization-twin rolls quenching technology were optimized as follows: the diameter of the nozzle 1mm, the wheel velocity 25m/s, the pressure of atomization gas 0.3MPa and Ar gas for melt injection 0.1MPa. The RS AZ91 alloy flakes exhibited fine and uniform microstructures. When the flakes were extruded at 673K, extruded velocity of 0.1mm/min and extrusion ratio of 25:1,the magnesium alloy rods with clean surface, uniform dimension and excellent mechanical properties were obtained.2. The RS AZ91 magnesium alloy powders prepared by atomization-twin rolls quenched technology exhibited fine equiaxed grains with the grain size of 1-3μm, the phase constituent included supersaturate solid solution phaseα-Mg and miner fineβ-Mg_(17)Al_(12) phase. The as-extruded materials also exhibited equiaxed grains with the size of 5-7μm and a large number of fineβ-Al_(12)Mg_(17) and fewer AlMg_2Zn phases were detected in the alloy.

本文还研究了快速凝固/粉末冶金AZ91镁合金热压缩变形流变应力行为，快速凝固/粉末冶金法原位生成Mg_2Si增强AZ91镁基复合材料，经过系统的研究，获得如下结论：1、雾化-双辊急冷法在下列工艺参数组合下：双辊线速度25m/s；喷嘴直径1mm；熔体压射压力0.1MPa；雾化气体压力0.3MPa。，可获得宏观尺寸细小、微观组织均匀细小、综合性能优良的的快速凝固AZ91镁合金细碎箔带，快速凝固箔带在挤压温度为673K、挤压速度为0.1mm/min，挤压比为25：1时，可获得的外表光洁、尺寸均匀、组织性能优异的镁合金棒材。2、雾化-双辊急冷法制备的AZ91镁合金粉末态为细小等轴晶组织，晶粒尺寸1-3μm，组织为α-Mg过饱和固溶体和微量的细小β-Mg_(17)Al_(12)相组成；粉末挤压棒材为等轴晶组织，晶粒尺寸5-7μm，组织中含有大量细小的β-Al_(12)Mg_(17)以及AlMg_2Zn析出相，室温力学性能，抗拉强度383MPa，屈服强度275MPa，断后伸长率7.5%。

In 2007, according to the plan of CNPC, gas drilling experiments were carried out extensively in Xujiaweiziensis DaQing. Air drilling, nitrogen drilling and atomization/foam drilling were all applied, and the primary attempt was actualized in the intended interval of Yingchengzuensis. It took out remarkable effect, therefore improved and developed the gas drilling technology. Thus the elementary matching technology of gas (atomization/foam) drilling that is fit for sand shale and vulcanite in Region Xujiaweiziensis of DaQing was formed, which will offer valuable experience for the further application and expansion of gas drilling.

根据中油股份公司的安排部署，2007年气体钻井在大庆徐家围子地区进行了大规模试验，应用了空气、氮气和雾化泡沫钻井工艺，并在营城组目的层进行了气体钻井尝试，取得了显著的效果，使气体钻井技术得到了进一步完善和发展，初步形成了一套适合大庆徐家围子地区深层砂泥岩、火山岩地质特点的气体钻井配套工艺技术，为气体钻井的进一步推广应用积累了宝贵经验。

In order to simulate the liquid fuel atomization in supersonic crossflow, a hybrid spray atomization model was developed.

为了模拟超声速气流中液体射流的雾化，发展了一种液滴破碎混合模型。

Combing with the fundamental thought of the particle system,jet length and atomizing angle are described as macroscopic properties of oil atomization.Based on analyzing the oil atomization process and the created mathematical model,using Visual C++ and OpenGL library with object-oriented method,the shape of oil atomization under variable voltage is simulated.

结合粒子系统的基本思想，以射流长度和雾化角作为宏观特性描述了油液的雾化情况，使用Visual C++结合面向对象技术和OpenGL图形库，根据所建立的数学模型，模拟了不同电压下油液的静电雾化形态。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。