目的探讨左室节段心肌在等容收缩期(ivc)与等容舒张期(ivr)长轴方向的运动特征及急性缺血时的变化规律。
Objective To investigate the features of left ventricular regional myocardial motion during isovolumic contraction (IVC) and isovolumic relaxation (IVR), and their changes in acute ischemia.
在不同的温度、时间、酸浓度等条件下，用不同的无机酸对高岭土进行改性处理，考察其改性后的比表面、孔容、孔径分布及裂化活性的变化。
The results showed that under certain condition, the trend of the properties of Kaolin Clays, such as surface area, pore volume, pore size distribution and cracking activity etc.
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