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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Transport properties of Gaussian measures for nonlinear Schrodinger equations
非线性 薛定谔方程 高斯测度 输运性质
2023/11/13
In the statistical study of Hamiltonian PDEs out of the equilibrium (lack of invariant measures), it is a natural question to understand the transport properties for canonical Gaussian measures. The f...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Liouville Properties on gradient shrinking Ricci solitons with constant scalar curvature
常标量 曲率梯度收缩 Ricci孤子 Liouville性质
2023/11/13
In this talk we show that bounded harmonic functions are constant on gradient shrinking Ricci solitons with CSC by frequency function method. As an application, we show that the space of harmonic func...
【名师讲座】龙德良：Unconventional types of polyoxometalates with unique electronic properties
名师讲座 龙德良 多金属氧酸盐
2023/6/20
多金属氧酸盐(POM)是一类前过渡金属元素簇状化合物，具有一系列非凡的物理化学性质，是功能非常有前途的纳米材。传统的多金属氧酸盐是由不具有氧化还原性的模板PO43-, SO42-, SiO42-等构建的。基于氧化还原活性模板(如SeO32-, TeO32-)的POMs更受关注，因为它们具有更多样化的结构类型和氧化还原活性，使它们具有进一步的应用潜力。在过去的二十年中，我们团队一直探索POM的前沿领...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：SOME PROPERTIES OF STATIONARY CONTINUOUS STATE BRANCHING PROCESSES
稳态 连续状态 分支过程 性质
2023/4/14
We consider the genealogical tree of a stationary continuous state branching process with immigration. For a sub-critical stable branching mechanism, we consider the genealogical tree of the extant po...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Hard Lefschetz properties, complete intersections and numerical dimensions
莱夫谢茨数 性质 完整交集 数值尺寸
2023/4/19
In this talk, we discuss the positivity of complete intersections of nef classes, including sufficient and necessary characterizations of the hard Lefschetz property on a compact complex torus and the...
Researchers detail never-before-seen properties in a family of superconducting Kagome metals（图）
超导物理学 金属材料 微观结构
2023/6/26
Scientists describe the microscopic structure of a recently discovered group of superconductors for the first time, a small step toward paving the way for future advances in superconducting technology...
ATLAS and CMS release results of most comprehensive studies yet of Higgs boson’s properties（图）
ATLAS CMS 希格斯玻色子
2023/5/26
Today, exactly ten years after announcing the discovery of the Higgs boson, the international ATLAS and CMS collaborations at the Large Hadron Collider (LHC) report the results of their most comprehen...
Uncovering unexpected properties in a complex quantum material（图）
复杂量子材料 意外特性 Ta2NiSe5 激子绝缘体
2023/7/11
Anew study describes previously unexpected properties in a complex quantum material known as Ta2NiSe5. Using a novel technique developed at Penn, these findings have implications for developing future...
Global public health officials are concerned about the rise of drug-resistant bacterial and microbial infections, which are estimated to cause 10 million deaths each year by 2050, a crisis exacerbated...
Physicists discover “secret sauce” behind exotic properties of a new quantum material（图）
量子材料 superconducting kagome metal 超导性
2023/6/7
MIT physicists and colleagues have discovered the “secret sauce” behind some of the exotic properties of a new quantum material that has transfixed physicists due to those properties, which include su...
Spatial and seasonal variation of water parameters, sediment properties, and submerged macrophytes after ecological restoration in a long-term (6 year) study in Hangzhou west lake in China
Hangzhou west lake macrophytes ecological restoration
2021/7/28
Submerged macrophyte restoration is the key stage in the reestablishment of an aquatic ecosystem.
西华大学高分子物理英文课件Chapter5 Mechanical properties I time- -independent elasticity
西华大学 高分子物理 英文课件 Chapter5 Mechanical properties independent elasticity
2019/11/29
西华大学高分子物理英文课件Chapter5 Mechanical properties I time- -independent elasticity。
Genetic differences in eggshell ultrastructural properties of Saudi native chicken breeds kept at high ambient temperatures
eggshell strength egg quality mammilliary layer total score
2018/11/23
Egg quality and eggshell ultrastructural properties of four Saudi native chicken breeds were compared to detect genetic differences. A total of 480 laying hens at 28 weeks of age, representing four Sa...
中国地质大学科学技术发展院任双坡(博士研究生), 姚光庆等 资源学院构造与油气资源教育部重点实验室 Journal of Hydrology, 2018, Borehole characterization of hydraulic properties and groundwater flow in a crystalline fractured aquifer of a headwater mountain watershed, Laramie Range, Wyoming
美国西部；怀俄明州；拉勒米地区；山区裂缝性；花岗岩；地下水
2021/10/21
2018年，国际著名期刊《Journal of Hydrology》刊发了中国地质大学关于美国西部怀俄明州拉勒米地区山区裂缝性花岗岩地下水系统综合表征的研究成果。论文第一作者为资源学院2015级博士研究生任双坡。该研究成果来源于资源学院姚光庆教授科研团队与美国怀俄明大学地质系Ye Zhang教授合作项目。论文第一作者赴美国怀俄明大学联合培养期间受到学校“研究生国际交流基金”资助。
THEORETICAL MODELLING STUDY ON THE RELATIONSHIP BETWEEN MULTI-FREQUENCY MICROWAVE VEGETATION INDEX AND VEGETATION PROPERTIES (OPTICAL DEPTH AND SINGLE SCATTERING ALBEDO)
Microwave Vegetation Index Matrix Doubling Model Optical Depth Single Scattering Albedo Soil Moisture Roughness
2018/5/15
This paper presents a theoretical study of derivation Microwave Vegetation Indices (MVIs) in different pairs of frequencies using two methods. In the first method calculating MVI in different frequenc...