查询词典 porous

And engineers at Lehigh and Princeton universities are trying to repair bones with scaffolds made from a porous, glasslike substance.

理海大学与普林斯顿大学的工程师也正尝试用一种多孔的类玻璃材质制成的支架来修复骨骼。

CNTs could be an excellent adsorbent due to their porous and graphitic structure.

CNTs具有多孔的石墨结构，是一种潜在的高性能吸附剂。

The retention mechanism of dencichine on a porous graphitic carbon column seems to be mainly hydrophobic interaction according to the study.

对三七素在石墨化碳柱上的保留及其影响因素的研究结果表明：三七素在石墨化碳柱上的保留机理仍主要是疏水相互作用。

The process includes making samples using Superpave Gyratory Compactor, selecting gradation by the criterion of stone-on-stone contact and certain air voids in the mix and determining the optimal asphalt content limited by draindown test and expected air voids as the main controllability condition. It is suitable to increase the asphalt content of the mix in the range of expected air voids, which can ensure the compatibility of function and durability of porous asphalt.

该方法采用旋转压实仪成型试件，通过计算法确定初试沥青用量，以石-石接触和一定条件下的空隙率作为设计级配选取的根本依据，在最佳沥青用量的确定中，以沥青析漏损失和空隙率作为主要的控制指标，在设计空隙率的基础上，通过使用纤维增大沥青用量，以保证沥青混合料兼备功能性和耐久性。

With the theory of Hydrophile-lipophile Balance, it is found that the most suitable anion surfactant for preparation of PPy is heptanoic acid, and get a conclusion that there is a best matching relation between the concentration of surfactant and the state of the porous substrate.

根据亲水亲油平衡理论，找出了最适合制备聚吡咯薄膜的阴离子表面活性剂——庚酸，并且通过试验得出了表面活性剂浓度与基底不同的多孔状态存在最佳匹配关系的结论。

In particular, anodic alumina membranes grown in acid electrolytes possess hexagonally ordered porous strutures with pore diameters ranging from 10 to 200nm, pore lengths from 1 to over 100μm, and pore density in the range of 10〓 to 10〓 cm〓. These unique structure properties and their thermal and chemical stability make AAMs ideal templates for the fabrication of one-dimensional nanomaterials.

将这两者相结合，以纳米结构的可控合成为研究切入点，以基于氧化铝模板的纳米结构的合成和相关物性研究为重点，深入讨论纳米材料研究中的&结构—物性&关系无疑具有重要的科研价值和科学意义。

The synthesized 3DOM α-Fe2O3 microparticles were composed of sphere or hexagonally porous morphologies interconnected through thin walls formed by nanocrystals of α-Fe2O3. The macropore diameters of the 3DOM α-Fe2O3 were about (115±10) nm and the pore wall thicknesses were between 20～30 nm.

合成的3DOM α-Fe2O3为三维有序多孔网状结构，具有球型和六边形的孔隙形貌，其孔径大小约为(115±10) nm；孔壁由α-Fe2O3纳米晶粒组成，壁厚为20～30 nm。

According to plasticity of porous and dense materials, an evolution model of dimensions and relative density for cylindrical canned powders during hipping was first established and the criterion for uniform compaction under the same conditions was derived. The above results can serve as a guidance for determining the can dimensions in practice.

根据孔隙性材料和致密材料的塑性理论，本文首次建立了圆柱形包套粉末体在热等静压过程中几何尺寸及相对密度的演化模型，提出了圆柱形包套粉末体均匀收缩的临界判据，对实际生产中合理确定包套尺寸具有指导作用。

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。

A two-dimensional fractal pore network model of porous media was constructed based on the theories of homothetic reduction, fractal geometry, Voronoi diagram, along with the structural parameter of potato.

构建的网络模型考虑了影响多孔介质干燥的孔道微细结构特征，模型参数能够很好地反映多孔物料的微观结构，且获得了合理的分形维数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。