摘要
电场可产生机械力．悬浮在电场中的生物微粒会沿看场的方向排列而形成项链状聚合，在生物学意义上构成组织形成体．讨论了产生上述现象的临界场强对微粒体积大小和频率的依赖关系，并同时得到由项链状结构的形成所需能量的阈值判定脉冲电场和连续电场所产生的生物学效应是相同的．简要讨论了链状形成的生物学意义，振荡触发形态发生的作用以及扩散诱导对称破缺不稳定性的情况．
Electric field causes mechanical force. The suspension of microscopic particles will realign themselves in an electric field along itsdirection and form Pearl - chain - like agglutinated Structure with biological implication, The dependence of critical field strength on partice size and frequency is discussd The measure result of critical Power requirment for the pearl - chain formatien Shows that puesed fields require as much Power as continuous fields The biological significance of pearl - chain Structure and the functior of oscillation - excitation ot shape formation and the condition of diffusion induce unstab1e symmetrial broken.
出处
《贵州大学学报（自然科学版）》
1998年第3期159-165,共7页
Journal of Guizhou University:Natural Sciences
关键词
排列
电场
生物学意义
结构
微粒
形态发生
alignment,electric field, Biological significance, structure polarity schematic presentation
