CAJ | 학술논문

目的　研究超声驻波不同作用时间对血液沉降过程的影响. 方法　对14份血液样品用功率密度Ⅰ=1.05 W*cm-2的超声驻波场分别作用0～200 s各不相等的时间，观察红细胞沉降现象并记录沉降指标. 结果　驻波场沉降曲线与自然沉降曲线有相似之处；驻波加速血沉的作用具有最小时间阈；存在驻波作用的“饱和时间”；一定条件下超声间歇作用于血样不会产生“时间累积效应”.结论　超声驻波场对血液沉降的加速作用具有时间依赖性.
목적　연구초성주파불동작용시간대혈액침강과정적영향. 방법　대14빈혈액양품용공 솔밀도Ⅰ=1.05 W*cm-2적초성주파장분별작용0～200 s각불상등적시간， 관찰홍세 포침강현상병 기록침강지표. 결과　주파장침강곡선여자연침강곡선유상사지처；주파 가속혈침적작용구유 최소시간역；존재주파작용적“포화시간”；일정조건하초성간헐작용우혈양불회산생“시 간루적효응”.결론　초성주파장대혈액침강적가속작용구유시간의뢰성.
AIM　To study the effect of different exposure time in the ultrasonic standing wave field (USWF) on the process of erythrocyte sedimentation. METHODS　 Erythrocyte sedimentation of 14 blood samples, which were continously or in terruptedly exposed with the given USWF (1.76 MHz, 1.05 W*cm-2) for different tim e between 0 and 200 s, was investigated. RESULTS　Ability of accelerating the sedimentation with USWF was related with the acoustic radiation time, and there existed a minimum threshold time TH and a saturation time TS; i.e., the USW F co uld accelerate the sedimentation only between the TH and TS. Moreover, we al so fo und that the interrupted ultrasound could not cause an accumulative effect. [ WTHZ CO NCLUSION　Extent of the effect of standing wave field on the sedimen tation process is dependent on the exposure time.