Using trichlorathylene to dissolve the different ageing asphalts,And use abson method and rotating evaporative reclaimer to reclame asphalt,test penetration,softening point,ductility,viscosity,dynamic shear modulus,phase angle,bending creep stiffness.
将原样沥青经过不同程度的老化,三氯乙烯进行溶解,然后采用阿布森法和旋转蒸发器两种沥青回收方法进行沥青的回收,为分析两种沥青回收方法在回收过程中对沥青老化的影响程度,对原样沥青、阿布森法回收的沥青以及旋转蒸发器法回收的沥青进行针入度、软化点、延度、粘度、动态剪切模量、相位角、低温弯曲蠕变劲度模量等性能指标的检测,通过试验分析可以得出,阿布森法和旋转蒸发器法在沥青的回收过程中都会使沥青产生一定程度的老化,但是老化程度都相对较低,在两种回收方法的比较中,阿布森法对沥青老化的影响要比旋转蒸发器法小,但是回收的试验过程要比旋转蒸发器法复杂,所以对两种回收方法的选择要结合具体实际情况恰当选取。
A Possible Mechanism of α Subunit 'Push' γ-Subunit Rotation in ATPase;
ATP合酶中α亚基推动γ亚基旋转的可能机制
Successful experiences of rotation mining method at combined mining face;
综采工作面旋转采煤法成功经验
Measurement of the rotational alignment of the distal femur with 3-dimensional CT;
三维螺旋CT重建股骨远端旋转力线的测量
The experimental results show that it can eliminate the phenomena of zigzag caused in image rotation and reduce the image distortion after image rotates many times.
图象旋转是图象处理中的一个基本操作,根据图象在邻近区域内连续的特点,该文提出一种基于高斯模板的图象旋转算法。
Let P and Q be two nonintersecting simple polygons in the plane, this paper discusses the rotational movability of them if P rotates around a point and collides with Q .
设 P和 Q为平面内两个互不相交的简单多边形 ,若 P在平面内绕某点旋转 ,文中讨论了其旋转可移动性问题 。
Heat transfer performance of!heat pipe rotating about parallel axes;
平行轴旋转热管传热性能的实验
Experimental investigations on the local heat transfer coefficient of rotating single circular impingement in a half-limited space;
旋转半受限单孔冲击局部换热特性实验
Local heat transfer in a rotating U-shaped square channel with three channel orientations;
3种转角下旋转U形方通道的局部换热
Introduction of static bias push-the-bit rotary naviyational system;
静态偏置推靠钻头式旋转导向钻井系统介绍
Improvement & application of rotary self-seal assembly in workover job;
旋转自封封井器在大修作业中的技术改进及应用
Brief discussion on fully mechanized rotary mining method with hydraulic powered support;
综采支架旋转采煤法初探