对有限颗粒法(FCM)进行了推广，将FCM用于模拟二维变孔隙率下多孔介质中污染物运移情况，并给出相应的数值算例。
An extension of Finite Cell Method (FCM) is presented, which was used to simulate mass transport process in porous media with unhomogeneous porosity. We also gave two numerical examples here.
这种多孔莫来石纤维陶瓷具有较均匀的孔分布，并且孔隙率高达96·22 %。
The porous mullite ceramics showed a uniform pore size distribution and a porosity of 96.22%.
研究了粉末粒度、制坯压力、添加剂含量等工艺参数对多孔铝合金密度及孔隙率的影响规律。
The effects of powder granularity, pressure, additives content on the density and porosity of porous specimens were studied.
采用冷冻干燥法可以制得下表面为致密结构，上表面为孔隙率较小的多孔结构，而内部是孔隙率较大的多孔结构的丝素膜。
A porous silk fibroin membrane could be prepared through freeze-drying process, with dense top surface, porous bottom surface in low porosity and porous inner portion in high porosity.
试验结果表明，精确公式能够很好地表达多孔介质孔隙率与体积模量之间的关系。
Experiments show that the accurate equation can express the relationship of porosity and bulk modulus of porous medium well.
随着孔隙率、孔径的减小，多孔铝的共振吸声系数有所下降，吸声频谱曲线向低频方向移动，且频带宽度展宽。
When the porosity and pore diameter reduced, the sound absorption curve moved to the low frequency zone and the frequency bandwidth increased at the same time.
多孔铝合金的孔隙率梯度主要是由渗流驱动压力梯度与凝固顺序所决定，而颗粒的自然堆积密度影响相对较小。
The porosity gradient of porous aluminium is mostly affected not only by the spontaneous stacking density of granules, but also by the infiltration pressure gradient and solidification sequence.
与相近孔隙率的锡青铜烧结多孔结构相比，该微细板翅结构中的流动阻力大大减小，而对流换热能力却增强。
The flow resistance for water and air flowing through the mini-fin structure was less, while heat transfer coefficient was higher than in the sintered bronze porous structure.
另外降低多孔铝合金的孔隙尺寸和增加其孔隙率，均会使多孔铝合金的吸声系数增大。
In addition the porosity of porous aluminum increasing or pore size decreasing, the sound absorbing coefficient also increases.
采用碱热处理法对不同孔隙率的多孔镁表面进行改性，并将碱热处理处理后的试样置于SBF溶液中浸泡对比。
The porous magnesium with different porosity was modified by alkali-heat-treatment and the samples were compared after soaked in the SBF solution.
在多孔介质的热—水—力耦合分析中，孔隙率和孔隙水的黏滞性是影响渗透性的主要因素。
During the coupled thermal-hydro-mechanical analysis of porous media, the porosity and viscosity of porous water are the main factors affecting the permeability of the rock mass.
建立了烧结金属多孔材料连通孔隙形成的模型，通过控制机械压制压力获得了一定孔隙率的金属多孔材料。
Geometrical models are built for connected pores of the sintered porous metal. The mechanical compaction force is controlled to obtain the porous metal with the certain porosity.
研究表明气体反压力与多孔介质的透过率(即孔隙率和孔径)、渗流速度、渗流长度有关。
The research shows that anti pressure of the gas is concerned with the permeability of porous medium (the porosity and the hole diameter), the infiltration speed, and the infiltration length.
研究了配料组成和前驱体成型压力对多孔碳板的气体透过性能、孔隙率、和电导率等指标影响。
The effects of composition and pressure of its precursor on the properties, such as gas permeability, porosity, and electric resistivity, were studied.
腐石之多孔性特性则直接与此研究区灰烬土之高孔隙率有关。
The porous nature of the saprolite is directly related to the high porosity of Andisols in this study area.
介绍了多孔硅的热导率特性以及孔径、孔隙率、热处理等因素对其影响。
The thermal conductivity performance of porous silicon and the influence such as aperture, porosity and oxidation treatment are introduced.
采用纳米技术和生物微电子机械系统技术制备纳米多孔硅膜，可准确控制膜的厚度、几何形状、孔大小、孔分布和孔隙率。
Fabricating the nanoporous silicon membrane with nanotechnology and Bio-MEMS technology, the thickness of membrane, pore size and distribution, geometry shape and porosity can precisely controlled.
多孔钛样品的孔隙率随烧结温度升高呈指数下降趋势。
The porosity of porous ti decreased with increasing processing temperature exponentially.
结果表明，以玉米粉为成孔剂，可制备出孔隙率较高、孔径分布均匀的YSZ多孔陶瓷管。
The research results show that the YSZ porous ceramic tubes with a higher porosity and a uniform distribution porosity can be prepared by using corn meal as the pore forming agent.
研究添加成孔剂法制备的有球形宏观孔的多孔氮化硅陶瓷在不同孔隙率和孔径下的介电性能。
The porosity, pore diameter and solubility of ceramsite filter made by these two methods were analyzed and compared.
随着刻蚀时间的增加，多孔硅孔隙率增加，拉伸应力进一步增加。
With the increasing of time, the porosity of porous silicon also increases.
利用自行研制的填料粒子，采用独特的渗流法制备了多孔金属铝，提出了填料颗粒为球形时多孔金属孔隙率的计算模型，实验证明用此模型预测多孔金属的孔隙率是可行的。
The structure and its control of the porous aluminum prepared by a special pressure infiltration process was studied , for which a model for calculating the porosity of porous metals was developed.
PET针刺材料的透气性较好，孔隙率一般都在90%以上，符合多孔材料的结构特征。
PET needle punching materials have good air permeability with the porosity of more than 90%.
孔隙率是表征中高浓纸浆多孔介质特性和研究纸浆内部结构的重要参数。
Porosity is one of the important parameters in medium and high consistency pulp porous medium characterization and pulp internal structure study.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响，获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
相分离法制备三维多孔壳聚糖支架，检测支架的孔隙率、孔径。
四面体透水框架群是由很多单个四面体框架抛投而成，具有很大的空隙，因而，可以将框架群看成由很多框架杆件和大的孔隙组成的大孔隙率多孔介质。
The revetment is made up of many single permeable tetrahedrons, and has much gap, so the group of permeable tetrahedrons can be treat as the porous media with large porosity.
结果表明：随着烧结温度的升高和保温时间的延长，气孔率和吸水率减小，体积密度和弯曲强度升高；晶粒长大填充气孔，使多孔材料孔隙率下降而强度增加。
The results show that the porosity and water absorption decrease and the bulk density and bending strength increase, along with the sintering temperature raising and the time prolonging.
结果表明：随着烧结温度的升高和保温时间的延长，气孔率和吸水率减小，体积密度和弯曲强度升高；晶粒长大填充气孔，使多孔材料孔隙率下降而强度增加。
The results show that the porosity and water absorption decrease and the bulk density and bending strength increase, along with the sintering temperature raising and the time prolonging.
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