aef

And the decrease of the outburst coal permeability is most among the three , meanwhile that of the delay outburst coal permeability takes second place , and the non-outburst coal permeability is least in AEF .

交变电场作用使煤的渗透率增大，而且突出煤样的渗透率增大最多，延迟突出煤次之，非突出煤最少。

Methods Clinical data of 6 patients with AEF in our hospital were analyzed retrospectively .

方法对我院6例腹主动脉肠瘘进行回顾性分析。

Adsorption and desorption characteristics of coal to methane in alternating electric field ( AEF ) have been studied .

对交变电场作用下煤吸附/解吸甲烷特性进行了研究。

The result shows that the relationship between permeability of the coal samples and volume stress in AEF well accords with negative exponential function ;

结果表明，交变电场作用下煤的渗透率与体积应力的关系基本上符合负指数方程；

The nature of effect of AEF on the welding process is the behavior variation of charged particles in the AEF .

结果表明，外加电场作用的本质是对焊接等离子体中带电粒子的作用。

We investigate the overall and the specific error characteristics through two error functions : normalized mean square error function ( NEF ) and absolute error function ( AEF ), respectively .

通过建立两个误差评价函数&归一化均方误差函数（NEF）和绝对误差函数（AEF），分别对整体和具体的近似误差进行了分析。

The effects of AEF on single TIG welding , laser welding and hybrid laser + arc welding are discussed as well as the role of electric field of arc plasma in hybrid welding .

分析了外加电场对TIG焊接、激光焊接和复合焊接的作用机制，以及复合焊接过程中电弧电场的作用。

The near infrared fluorescence pulse with 40 ns and 150 ns ( FWHM ) pulse duration have been detected at the side of and behind the AEF respectively .

从滤波器的侧向和纵向分别探测到脉宽为40ns和150ns的近红外荧光脉冲。

This paper discussed the formula of CBN ( cubic boron nitride ) resin abrasive tools which was prepared with modified phenolic resin with bismaleimide ( BMI / AEF ) as bonding agent .

本文采用自制的双马来酰亚胺改性酚醛树脂（BMI/AEF）为结合剂，研究CBN树脂砂轮的配方体系。

The results showed that : ( 1 ) BMI / AEF resin had super thermal stability , excellent hot pressing performance and lower post curing temperature and its highest thermal decomposition temperature came up to 469 ℃, therefore it could be used as bonding agent for superhard abrasive products .

结果表明：（1）BMI/AEF树脂具有优良的耐热性，良好的热压工艺和较低的后固化温度，最高热分解温度达到469℃，适用于超硬材料树脂磨具结合剂；