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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：3D Fracture Development Analysis with A Modified XFEM
XFEM 三维裂缝 发育分析
2023/11/6
扩展有限元法(XFEM)是目前裂纹分析的主流数值方法。2009年起，ABAQUS、ANSYS等主流商业软件集成XFEM并应用于裂纹问题，标志着该方法被工业界广泛接受。然而，在实际应用中XFEM仍然受到两方面的困扰：总体方程高度病态和动力学计算时能量难以守恒。基于“困难的根源在于单位分解插值引入的额外自由度”这一判断和认识，我们提出了一种无额外自由度的改进型扩展有限元方法，有效解决了现有方法总体刚度...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：O(2)-symmetry of 3D steady gradient solitons
O(2) 三维稳态 梯度孤子 对称性
2023/4/13
In this talk, we talk about the proof of the O(2)-symmetry of 3D steady gradient solitons. The proof consists of four parts: the asymptotic analysis at infinity, the symmetry improvement theorem, the ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Stable nearly self-similar blowup of the 2D Boussinesq and 3D Euler equations with smooth data
平滑数据 二维布西内斯 三维欧拉方程 稳定近似 自相似爆炸
2023/4/13
Whether the 3D incompressible Euler equations can develop a finite-time singularity from smooth initial data is an outstanding open problem. In this talk, we will first review recent progress in singu...
2019年10月24日，国家重点研发计划增材制造与激光制造重点专项——“血管化仿生关节多细胞精准3D打印技术与装备的开发及应用(2018YFB1105600)”项目中期推进会暨“抽脂术后脂肪收集与脂肪间充质干细胞的制备”项目启动会在沪召开。
2018年SPIE3D打印光学和添加光子制造会议（SPIE 3D Printed Optics and Additive Photonic Manufacturing）
2018年 SPIE 3D打印光学和添加光子制造 会议
2017/10/27
3D printing technologies are revolutionizing today’s fabrication methods, from research prototypes to individualized mass-production. This trend is accelerated by a growing number of available printin...
