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The particle-gas two-phase flow in the high-pressure centrifugal blower of 9-26type was simulated three dimensionally with computational fluid dynamics Fluent.The result of the simulation showed the inhomogeneity of particle concentration at outlet of the exhauster,which agrees well with the measurement results.

采用通用计算流体力学软件Fluent对某9-26型风机内部气固两相流进行了三维数值模拟，模拟结果显示了风机出口固相浓度的不均匀性，与实验测量结果一致。

The particle-gas two-phase flow in the high-pressure centrifugal blower of 9-26type was simulated three dimensionally with computational fluid dynamics Fluent. The result of the simulation showed the inhomogeneity of particle concentration at outlet of the exhauster, which agrees well with the measurement results.

摘 要：采用通用计算流体力学软件Fluent对某9-26型风机内部气固两相流进行了三维数值模拟，模拟结果显示了风机出口固相浓度的不均匀性，与实验测量结果一致。

Considering a spherical porous carbon particle immersed in a static ambient atmosphere, the combustion characteristics under three basic conditions: frozen flow, equilibrium flow, partial flow are solved in a half-analytical and half-numerical way. By using the LAEA (Large Activation Energy Asymptotic Method), the departure value of some parameters such as combustion rate, temperature, and concentration are obtained. On this basis, the rules of a carbon particle combustion under various conditions when the gas phase Damk〓hler number is in the range of 0,+∞ are summarized.

建立氧化性环境中相对静止的多孔炭粒燃烧的控制方程，采用半解析、半数值方法求解出炭粒在冻结流、部分流、平衡流三种基本情况下的燃烧规律，并采用大活化能渐近匹配方法，计算出偏离冻结流、偏离平衡流情况下燃烧速率、温度及组分浓度等参数的偏离解，进而总结出炭粒在气相Damk〓hler数为0，∞整个范围内燃烧特性变化规律。

The objectives of this study were to observe the difference of particle components on the filter before and after ultrasonic extraction, as well as to compare the particle components collected by an impinger sampler.

而本研究之目的在於观察经过震荡步骤后，微粒元素成分的改变情况，并尝试以impinger采样方式直接将微粒采集在水中，探讨采集在滤纸上及直接以水捕集微粒之间的差异性。

Both of the analysis and the measurements showed that the particle zeta potential is close related to chemical properties of ionizable functional groups on particle surface, pH and specific adsorption of anions and cations.

结果表明，颗粒表面ζ电位与颗粒表面离子化官能团的化学性质、天然水pH值和专属吸附的阴阳离子Ca~(2+和PO_4~(3-)有密切关系。

The latices were stable ,thixotropic and monodisperse .The particle sizes range from 192 to 94 nm depending on the acrylamide fractions. The Hofmann reactions of these latices were carried out to introduce primary amines on the particle surface.

由于一直以来，丙烯酰胺-苯乙烯的共聚物胶乳只能用于制备两性胶乳，为了得到较高的胺化度，我们对不同单体配比的丙烯酰胺-苯乙烯共聚物胶乳进行Hofmann反应，探讨了丙烯酰胺在单体中所占的比例对Hofmann反应的影响。

By proximate and ultimate analysis, petrographical analysis, Scanning Electronic Microscope analysis, Mercury Porosimeter analysis, TG analysis and pilot scale fluidized bed combustion experiment, the combustion characteristics and particle properties of Longyan coal with different lithotype were studied, including the surface figure and pore structure of particle, the maceral content, the ignition and burnout temperature, and the reactivity, ect.

利用热天平实验测试数据，分别采用Freeman-Carroll微分法、改良Coats-Redfern积分法和Flynn-Wall-Ozawa法等热分析手段求解4种无烟煤的燃烧动力学参数。研究不同热天平试验工况、不同处理方法和不同拟合区间等对求解结果的影响，分析用不同热分析方法求解反应动力学参数的可靠性并计算得到了几种典型福建无烟煤的燃烧反应动力学参数；再次是研究流化床燃烧中无烟煤焦的反应性随燃尽度的变化。

The particle size distribution fractal was introduced into powders' flowability testing, through used the mathematical model which utilize the geometry properties of the particle, and propitious to the digital micrographic image analysis method. It was gained the fractal dimensions, discussed the relationship between the powders' flowability denotation parameters and powders' PSDF, and also made a primary research about the action effect of flow addition reagent magnesium stearate.

本文中在颗粒流动性测试时引入粒度分布分形维数，通过采用利用颗粒几何特征，便于采用数字显微和用像处理计算粉体粒度分布分形维数值的数学模型，得到粉体粒度分布分形维数值，探讨颗粒流动性表征参数与粉体粗度分布分形维数值间的关系；并就流动助剂硬脂酸镁对粉体流动性能的改进与粉体粒度分布分形维数值关系进行了初步探讨。

In this paper,a series of parameters as aperture、surface-area ratio to particle mass、hole-volume of pyrite (FeS2) particle,and the release characteristic of sulfur before reaction and under different temperature of drop-tube furnace were measured using ASAP2000 instrument from Micromeritics Co. USA with isothermal-absorption method. The configuration of FeS2 and its reaction products were summarized from the experiments.

采用美国Micromeritics公司的ASAP2000型比表面孔容测定仪，用等温吸附法，对硫铁矿(FeS2)在反应前及一维沉降管炉不同炉温条件下的孔径、比表面积和孔容积等参数的变化特性及硫的释出规律进行了测定，得到了对FeS2及其反应产物形态的一定认识。

To begin with, we discuss the single scattering property of the pigment particle, and compute the scattering parameters of homogeneous sphere, coated sphere, spheroid, and other nonspherical particle.

本文从红外辐射与颜料粒子的相互作用的微观物理机制和涂层中热辐射传输方程出发，对红外与雷达波兼容隐身的机理，进行了深入的研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。