首先，后现象学强调在现象学核心处实际存在的变分理论（variational theory）。也就是说，当我们在处理任何现象的时候，不得不考虑变分（variations）因素的可能性。
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Based on the elastic theory of liquid crystal and variation theory, the effect was studied, and the differential equation and boundary condition about the director of liquid crystal were obtained.
基于液晶弹性理论研究了这一效应，通过变分理论得到了液晶指向矢满足的微分方程及边界条件。
参考来源 - 向列相液晶中挠曲电效应的理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
主要提出两种全新的阴影检测算法—基于整体变分理论的检测法和基于均值平移理论的检测法。
Brings forth two new shadow detection algorithms: one is based on total variation theory and the other is based on mean shift theory.
基于液晶弹性理论研究了这一效应，通过变分理论得到了液晶指向矢满足的微分方程及边界条件。
Based on the elastic theory of liquid crystal and variation theory, the effect was studied, and the differential equation and boundary condition about the director of liquid crystal were obtained.
将分数阶微分理论和全变分方法相结合应用于图像去噪，提出了一种基于分数阶偏微分方程的图像去噪新模型。
Combining fractional order differential theory with total variation method, a new image denoising model was proposed, which was based on fractional Partial Differential Equation (PDE).
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