CAJ | 학술논문

由于细胞间相互作用的复杂性使得建立外电场作用下悬液细胞膜损耗功率计算模型非常困难,提出了用场近似等效方法解决该建模难题.基于有效介质理论,用等效原理,研究了外电场作用下悬液细胞跨膜电压变化规律,然后确定细胞膜内电场分布.最后根据焦耳定律,建立了外电场作用下悬液细胞膜损耗功率计算模型.模型表明:对直流和低频场,悬液细胞膜的能量损耗主要为导电损耗;当外加频率超过细胞膜的弛豫频率时,介质损耗占主导部分.
유우세포간상호작용적복잡성사득건립외전장작용하현액세포막손모공솔계산모형비상곤난,제출료용장근사등효방법해결해건모난제.기우유효개질이론,용등효원리,연구료외전장작용하현액세포과막전압변화규률,연후학정세포막내전장분포.최후근거초이정률,건립료외전장작용하현액세포막손모공솔계산모형.모형표명:대직류화저빈장,현액세포막적능량손모주요위도전손모;당외가빈솔초과세포막적이예빈솔시,개질손모점주도부분.
Due to interaction among cells,it is too complex to build an exact analytical model for the power dissipation within the cell membrane in suspensions exposed to external fields.An approximate equivalence method is proposed to resolve this problem.Based on the effective medium theory,the transmembrane voltage on cells in suspensions was investigated by the equivalence principle.Then the electric field in the cell membrane was determined.Finally,analytical solutions for the power dissipation within the cell membrane in suspensions exposed to external fields were derived according to the Joule principle.The equations show that the conductive power dissipation is predominant within the cell membrane in suspensions exposed to direct current or lower frequencies,and dielectric power dissipation prevails at high frequencies exceeding the relaxation frequency of the exposed membrane.