多孔性

In this study, Polyurethane/hydrogel composites were fabricated for wound repair applications. The hydrogel was copolymer of thermosensitive N-isopropyl acrylamide and acrylic acid.γ-ray irradiation was employed to copolymerize NIPAAm with AAc and to graft hydrogel onto porous PU simultaneously.

本研究以聚胺基甲酸酯为基材，将感温性异丙基丙烯醯胺（N-isopropyl acrylamide， NIPAAm）和丙烯酸（Acrylic acid， AAc）以γ-ray照射聚合法进行聚合，并同时将水胶接枝在多孔PU上，制备出PU/水胶复材之人工敷料，应用於伤口修复。

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。

Objective To study the causes and therapy of the development of pyogenic granuloma in hydroxyapatite orbital implants.

目的 分析珊瑚多孔羟基磷灰石义眼台眶内植入术后脓性肉芽肿形成的原因，探讨其有效的治疗方法。

Sericultural for actin fibers, fine silk and the tenacity of porous, high thermal performance, are cotton, 1.2 times the hygroscopicity of cotton are 1.5 times the elastic flexibilityìcompressed cotton are 3 times 2 times the wool to prevent cold bones moisture penetration, and exchange of steam.

蚕丝为动蛋白纤维，丝细多孔而坚韧、保暖性能极高，是棉花的1.2倍，吸湿性是棉花的1.5倍，压缩伸拉弹性弹性是棉花的3倍，羊毛的2倍，可防止寒湿气透入筋骨，并交换蒸汽。

Based on the Darcys law, the theoretical model of permeability measurement was established. And the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details. It was found that the permeability of fibrous reinforcement mainly lied on the preform architecture.

文中首先根据达西定律建立了渗透率测量的理论模型，深入研究了不同的测试方法及主要工艺参数(纤维织物织构、纤维体积含量、充模压力、流动速度、树脂粘度)对渗透特性的影响规律，发现多孔介质增强材料的渗透率主要取决于纤维织物的结构形式，预成型体孔隙分布及其体积分数、压实性对渗透率有较大的影响，提高充模压力和流动速度可以缩短充模时间，在一定程度上可以提高渗透率。

A new implicit pressure calculation method and relevant percolation rule are introduced taking account of the advantages of methods suggested by King, Sorbie and Stenby. Simulation methods for various boundary conditions (fixed pressure or fixed flow rate) and well pattern (line drive, five-spot pattern) are presented.

多相渗流的随机渗滤多尺度模拟多孔介质的多尺度非均质性及工程上对渗流模拟空间范围的要求，使得多相渗流的多尺度模拟对于正确模拟渗流过程具有十分重要的意义。

Moreover, based on the uniformity of solid axial distribution, the respective performances of the radiant orifice gas distributor and the perforated plate （1 mm） were compared, as well as with and without internals.

从固体轴向分布的均匀性分别比较辐射式锐孔气体分布器和1mm多孔板气体分布器的性能以及有／无内部构件的性能。

Thus, the loading of the slurry and the porous structure can be effectively modulated by above processing parameters. By two-step centrifuging process, because of uniformly thicker slurry coating, the thermal stress resistance of the coating was promptly improved.

通过两次离心挂浆工艺制备的网眼多孔陶瓷，由于结构的均匀性提高，特别是孔筋上的涂覆厚度显著增加，增强了孔筋抵抗脱胶过程中热应力的能力，使得结构中的缺陷减少。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐