搜索结果: 1-9 共查到“理学 Strong”相关记录9条 . 查询时间(0.364 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Global strong solutions to the two-dimensional radially symmetric compressible MHD
二维径向对称 可压缩 磁流体动力学 全局强解
2023/12/11
In this talk, I will present our recent result the 2D radially symmetric compressible MHD with density-dependent viscosity. Under the condition of beta>1, we prove the global existence of the radially...
DNA shows poorly understood empire was multiethnic with strong female leadership（图）
DNA 基因工程 生物分子 考古
2023/6/19
Most of what is known about the Xiongnu people comes from their enemies.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Arithmetic purity of strong approximation for complete toric varieties
完整 复曲面品种 强近似 算术纯度
2023/4/18
In this talk, I will discuss arithmetic purity of strong approximation : motivations and related results. Finally, for complete toric varieties, I will briefly explain my work on this topic.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Many-body localization and quantum many-body scars: The strong and weak form of ergodicity breaking
多体定位 量子多体疤痕 遍历性断裂 强弱形式
2023/4/23
The fate of an isolated quantum many-body system has attracted much attention in the past decade. One of the most important issues is whether such a system can reach thermalization under its own dynam...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Strong approximation and integral quadratic forms over affine curves
仿射曲线 强近似 积分二次形式
2023/5/9
Let $k$ be a field of characteristic 0 and let $C$ be the a smooth affine curve over $k$. We will first discuss applications of strong approximation to the theory of integral quadratic forms over $C$....
16 May 2007，A ring-shaped distribution of mass in a galaxy cluster five billion light-years from Earth is the strongest evidence yet for the existence of dark matter. This is the claim of physicists f...
3.2 Billion-Year-Old Surprise: Earth Had Strong Magnetic Field
magnetic field Earth and Environmental Sciences
2007/4/9
April 6, 2007,Geophysicists at the University of Rochester announce in today's issue of Nature that the Earth's magnetic field was nearly as strong 3.2 billion years ago as it is today.
American Association for the Advancement of Science President: IPCC Report Underscores Need for Strong Action on Climate（图）
climate change
2007/2/10
2 February 2007，A new report from the Intergovernmental Panel on Climate Change (IPCC) "powerfully underscores" the need for a massive effort to slow global climate disruption, says AAAS President Joh...
American Association for the Advancement of Science President: IPCC Report Underscores Need for Strong Action on Climate
Climate Change
2007/2/5
2 February 2007，A new report from the Intergovernmental Panel on Climate Change (IPCC) "powerfully underscores" the need for a massive effort to slow global climate disruption, says AAAS President Joh...