细胞许多新陈代谢活动都伴随着离子浓度的改变,通过对离子浓度的检测可以间接检测细胞代谢状态。荧光共振能量转移技术(fluorescence resonance energy transfer,FRET)可以实现在活细胞内对离子浓度微弱变化的动态检测,为细胞离子代谢...细胞许多新陈代谢活动都伴随着离子浓度的改变,通过对离子浓度的检测可以间接检测细胞代谢状态。荧光共振能量转移技术(fluorescence resonance energy transfer,FRET)可以实现在活细胞内对离子浓度微弱变化的动态检测,为细胞离子代谢的可视化检测提供了有力工具。本文综述了FRET技术在离子浓度、离子通道以及膜电位检测方面的应用。展开更多
The analyses of finite deformation and stress for a hyperelastic rectangular plate with some voids under an uniaxial extension were conducted. The governing differential equations were given from the incompressibility...The analyses of finite deformation and stress for a hyperelastic rectangular plate with some voids under an uniaxial extension were conducted. The governing differential equations were given from the incompressibility condition of the material. The solution was approximately obtained from the minimum potential energy principle. The growth of voids was discussed. One can see that an initial central circular-cylinder void becomes an elliptic-cylinder void, but an initial non-centeral circular-cylinder void becomes an elliptic-like cylinder void and the center of void has a shift. The stress distributions along the edges of voids were given and the phenomenon of stress concentration was observed. The influences of the distribution manner and size of voids, as well as the distance between them on the growth of voids were analyzed.展开更多
文摘细胞许多新陈代谢活动都伴随着离子浓度的改变,通过对离子浓度的检测可以间接检测细胞代谢状态。荧光共振能量转移技术(fluorescence resonance energy transfer,FRET)可以实现在活细胞内对离子浓度微弱变化的动态检测,为细胞离子代谢的可视化检测提供了有力工具。本文综述了FRET技术在离子浓度、离子通道以及膜电位检测方面的应用。
文摘The analyses of finite deformation and stress for a hyperelastic rectangular plate with some voids under an uniaxial extension were conducted. The governing differential equations were given from the incompressibility condition of the material. The solution was approximately obtained from the minimum potential energy principle. The growth of voids was discussed. One can see that an initial central circular-cylinder void becomes an elliptic-cylinder void, but an initial non-centeral circular-cylinder void becomes an elliptic-like cylinder void and the center of void has a shift. The stress distributions along the edges of voids were given and the phenomenon of stress concentration was observed. The influences of the distribution manner and size of voids, as well as the distance between them on the growth of voids were analyzed.
