Precise spatiotemporal control of protein synthesis is essential during embryogenesis, yet directly measuring translation ...

Apomixis potentially leads to the accumulation of deleterious mutations, although facultative sexuality and pollen-based purging can mitigate this process in some plant apomicts. But what happens when ...

In geotechnical engineering, excess pore water pressure is one of the main reasons that cause structural instability. It greatly reduces the effective stress of soil and may lead to problems such as ...

A carefully curated collection of high-quality libraries, projects, tutorials, research papers, and other essential resources focused on Physics-Informed Machine Learning (PIML) and Physics-Informed ...

Non-Linear Least Squares Minimization, with flexible Parameter settings, based on scipy.optimize, and with many additional classes and methods for curve fitting.

1.1 接触疲劳对滚子参数极度敏感 圆锥滚子轴承的失效模式里，接触疲劳剥落占了绝大多数。滚子与内滚道之间是线接触，名义上是一条线，实际受载后展开成一个窄矩形接触带。接触应力的峰值对滚子直径、滚子数量、接触长度这些参数非常敏感，而这种敏感性是幂函数级别的，不是线性级别。

因为 7 点法（7-point algorithm）在数值上极其不稳定：当点共面或接近共面时，系数矩阵接近奇异，解出的 F 会出现巨大误差，甚至秩不为2。 8 点法（8-point algorithm）将问题转化为最小二乘求解，鲁棒性高得多。