An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is seen as a 3D distortion illusion, where the arrangement of the lines in the ...

An optical illusion or a brain teaser is a type of visual puzzle that creates a misleading effect on our brain and leads to our brain's interpretations in the wrong way, and misleads our perception.

为提升地下及 waterfront 结构稳定性，来自未知机构的研究人员针对砂土中桩基础的抗拔承载力开展研究。通过模型试验和 PLAXIS 3D 数值分析相结合的方法，系统考察了不同 L/d 比和 S/d 比对 hollow circular 铝合金桩群抗拔性能的影响。研究表明增加嵌入深度和桩间距 ...