The Porosity and Tortuosity of Frost Layer

霜层的孔隙率和 弯曲 率

A comprehensive characteristic parameter ( including porosity thickness and tortuosity ) was found more effective to express the influence of membrane structure in gas permeation process .

提出了一个多孔膜结构综合参数的 概念。用此综合参数来表征多孔膜结构对气体渗透传质性能的影响更合理、更有效和更 直观。

Air permeability is not only related with the void numbers but also connected with the morphological structure arrangement tortuosity and distribution of the voids .

气流 流过集合体时不仅与空隙的多少有关，而且与空隙的 形状、 曲折 程度、排列和 孔径的分布有关。

Study on the Tortuosity of Chinese Modernization

中国现代化 曲折 性研究

Taking into account temperature effect and sediment tortuosity effect using Fick 's first law can more accurately estimate diffusive flux of inorganic nitrogen across the sediment-water interface than previous reports .

利用Fick's第一定律，在综合考虑温度效应和沉积物颗粒 弯曲效应的基础上，对沉积物-水界面间的营养盐氮的扩散通量进行了更为精确的估算。

Furthermore cell performance was investigated in terms of different structure parameters of porous electrode ( porosity tortuosity and pore size ) all of which have a significant effect on it .

进一步研究表明多孔电极结构参数（孔隙率、 曲折 因子与孔径尺寸）对电池性能有十分重要的影响。

The tortuosity of the socialist progress and the historical fate of it

社会主义进程的 曲折 性及其历史命运

The mechanism of this technique can be summarized as the joint changes of hole trajectory deviation to make the hole axial line be tortuosity .

这种技术的机理可概括为井眼轨迹井斜和 方位的联合变化，造成井眼轴线具有空间 挠曲 和 弯曲特性。 弯曲主要 体现为 狗腿 度， 挠曲就 体现为井眼的扭转。

The tortuosity factor of two irregular shape pellets were measured using dynamic state method-single pellet string reactor method ( SPSRM ) .

采用色谱法，在单颗粒线反应器中对两种异形多通孔催化剂的 曲折因子进行了测定。

Solution of Hydraulic Tortuosity Factor in Porous Media and Its Application

多孔介质中水力学 迂曲 度因子的求 取及应用

The results obtained for different gas systems quite close each other the tortuosity of the catalyst is about 2.3 .

不同气体体系所得的结果彼此十分接近，该催化剂的 弯曲 因子大约为2.3。

The prediction precision on gas diffusion could be remarkably improved if the calculation precision of the molecular diffusion coefficient porosity and tortuosity is improved .

改善分子扩散系数、孔隙度和 曲折 度的精度可以有效提高气体扩散的预测精度。

In the process of transfer employment the social mobility of rural youth is characterized by : the tortuosity of mobile process ; the certainty of mobile results ; the subjectivity of mobile evaluation .

留乡青年转移就业过程所呈现的社会流动特征有：流动过程的 曲折 性、流动结果的确定性和流动评价的主观性。

Simple stenosis was found in 11 cases stenosis associated with occlusion of internal carotid system in 8 cases stenosis complicated with arterial tortuosity in 4 cases stenosis associated with tortuosity and occlusion of the siphon section in 1 case .

其中单纯狭窄11例，狭窄合并颈内动脉系统闭塞者8例，狭窄合并动脉 扭曲4例，狭窄合并扭曲及颈内动脉虹吸段闭塞1例。

TPB length porosity and tortuosity factor of pores are calculated during kMC sintering . And the effects of particle size and its distribution and sintering temperature are studied .

在模拟烧结的过程中计算了三相线长度，孔隙率和气孔 曲折因子的演变，并系统研究了粒子尺寸，粒径分布和烧结温度的影响。

The advection part is simulated by moisture transport in rough cracks modeled as a flux based on Poiseuille law considering crack width crack surface roughness tortuosity and capillary pores at crack surface .

对其中的水分对流部分，分别考虑了裂缝的宽度、表面粗糙度、表面 迂曲 度和毛细孔等参数，根据流体力学Poiseuille方程建立了在其传输模型。

The fracton dimension is related to the tortuosity of pore structure .

谱分维与孔隙结构的 扭曲 度具相关特性。

Objective : Varicose vein is a collective term which describes the distension lengthening and tortuosity of veins .

前言：目的：了解睾丸静脉和 卵巢静脉的 变异。

When contrast-enhanced CT depicts hypervascularity of the mesentery with vascular dilatation tortuosity and wide spacing of the vasa recta the comb sign is produced .

当增强CT显示血管扩张、 迂曲而血管增多的肠系膜和广泛分布的直小血管，产生梳征。

Reviewing briefly the rise and decline of the flammable element theory this article throws tight on the relativity and tortuosity of human 's knowledge .

本文通过对燃素说兴衰 史的简单回顾，说明了人类认识的相对性和 曲折性，以及 应 如何 正确 对待 科学 遗产。

The first recognizable abnormality is increased tortuosity and thickening of the arteries which may compress the underlying veins .

首先见到的改变是动脉 弯曲 度的增加和管壁的增厚，它可压迫其下面的静脉。

We can understand socialism more comprehensively more profoundly and more confidently by discussing the objective law inevitability tortuosity and protraction of socialism .

探讨了社会主义发展的客观规律必然性、 曲折 性以及长期性，从而使我们对社会主义的认识更加全面更加深刻，进一步坚定了社会主义的 信念。

The new criteria included the false aneurysm the mural thrombus and the tortuosity of the intimal flap . 4 .

新制定的分型标准为 是否有假性动脉瘤形成、 是否有附壁血栓形成及 是否有内膜片的 扭曲。

By decreasing the tortuosity factor and the particle density the effectiveness factors diminished significantly ;

随 曲 节因子和颗粒密度的增加而显著减小；

The key points to maintain high success rate and low complication are to adhere to the interventional learning curve and to exclude severe calcification significant tortuosity and / or diffuse long lesion .

保持高成功率和低并发症发生率的关键，一是遵循学习曲线规律，二是排除重度钙化、高度 弯曲和过长的病变。

A method of determining the tortuosity factor of the catalyst particles for synthesis of ammonia

氨合成催化剂颗粒 曲折率的一种测定方法

It is suggested that the long-term polymer drive has resulted in enlarging some small pore throats improving the communication among pores and reducing pore tortuosity in the reservoirs .

通过分析认为，储层经过长期注入聚合物后，使一部分小喉道 变大，孔隙之间的畅通 性 进一步 变 好，孔隙 迂曲 程度减小。

The design and implementation were investigated of application specific integrated circuit ( ASIC ) used in a super tortuosity nomograph liquid crystal display ( STN-LCD ) controller & driver .

超 扭曲向列（STN）液晶是一种常见的被动型显示器件，在移动通讯设备和仪表显示系统中被大量使用。

The presence of aggregates in cement-based materials might modify the pore structure of hardened cement paste and its dilution effect and tortuosity effect could reduce chloride transport properties .

骨料改变了水泥基复合材料中浆体的孔结构，其稀释效应和 曲折效应降低了氯离子的传输性能；

The pore structure features small pore throat radius and low height-wide ratio and much fractal dimension big capillary tortuosity and high pore-throat radius ratio .

孔隙结构特征表现为孔喉半径及其高宽比小，分形维数、毛细管 弯曲 度和孔-喉径比大。