The results of numerical simulation show the lesion of photoaging skin can be selectively damaged if the wavelength, exposure duration and exposure dose of irradiated ligh are reasonably selected.
To study the correlation of the power output, exposure duration and tissue temperature.
通过体外测温初步探讨微波凝固输出功率及辐射时间与组织温度的关系。
Results ABR thresholds were significantly elevated in all exposure duration groups (P
结果:所有的暴露组中,ABR的阈值都高于对照组(P
Objective: This study evaluated the micro-hardness of light-cured composite resin of different light sources, materials , exposure duration time and depth.
目的:探讨不同条件及不同厚度下光敏复合树脂的显微硬度。
Besides acute exposure of large dose, there are repeated exposures mainly in which exposure duration is unequal and dose levels heterogeneous, even exposure may continue for a couple of days.