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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Homogenization of a front propagation model in dynamic environments
动态环境 前端传播模型 均质化 一阶哈密尔顿-雅可比方程
2023/4/18
In this talk I will review the developments of homogenization theory for a front propagation model. It is described by a first order Hamilton-Jacobi equation with a Hamiltonian that grows linearly wit...
在全脑范围同时获取多种结构的高分辨图谱，对于深入揭示脑功能及阿尔茨海默症（AD）等神经系统疾病的发病机制具有重要意义。目前已有的成像技术和方法在实现大尺度、高分辨率的多种脑结构元素同步成像方面，面临着巨大挑战。
Islands on the climate front line（图）
气候学 佩里世界之家 气候危机
2023/7/11
Small, remote, and with limited resources, island nations are among the world’s most vulnerable places and, as bellwethers of the climate crisis, have have taken center stage in global policy discours...
2021年10月31日 讯 /生物谷BIOON/ --幼年斑马鱼（Danio rerio）的小尺寸和半透明特性使其成为了一种能研究全脑神经回路结构和功能的独特实验性系统；然而，大多数神经元类型之间的连接模式仍然是未知的；这一知识差距或许就强调了科学家们对有效的神经回路绘图工具的迫切需求，尤其是那些能整合结构和功能分析结果的工具。近日，一篇发表在国际杂志Frontiers in Neuroanato...
Scientists at Cornell and the American Museum of Natural History have identified 2,034 nearby star-systems – within the small cosmic distance of 326 light-years – that could find Earth merely by watch...
Preface: Front edge of submarine mineral resources research in Japan (Part 2)
Japan ubmarine mineral resources
2017/4/10
As we mentioned in the preface of the last special issue
(Suzuki et al., 2015), greater interests in submarine resources
have been generated recently because many people
have realized their high po...
A Hybrid Variational Front Tracking-Level Set Mesh Generator For Problems Exhibiting Large Deformations and Topological Changes
Front Tracking Arbitrary-Lagrangian-Eulerian Mesh Method
2015/12/11
We present a method for generating 2-D unstructured triangular meshes that undergo large deformations and
topological changes in an automatic way. We employ a method for detecting when topological ch...
Speaker Verification Using Orthogonal GMM with Fusion of Threshold,Identification Front-end,and UBM
Speaker Verification Orthogonal GMM Fusion of Threshold Identification Front-end UBM
2015/9/29
This paper shows that the performance of a Gaussian Mixture Model using a Universal Background Model (GMM-UBM) speaker verification (SV) system can be further improved by combining it with threshold a...
The structure of the population inside the propagating front
Branch diffusion process of single particle particle
2015/9/25
We investigate the long-time and long-range behavior of branching diffusion processes (starting with a single particle) in two different situations: when the
branching potential has compact support a...
Historic 2013 Colorado Front Range storm accomplished up to 1,000 years of erosion,CU-Boulder study finds
2013 Colorado storm accomplished 1,000 years of erosion CU-Boulder
2015/9/8
The historic September 2013 storm that triggered widespread flooding across Colorado’s Front Range eroded the equivalent of hundreds, or even as much as 1,000 years worth of accumulated sediment from ...
Rates of Quaternary deformation in the Ouarzazate Basin (Southern Atlas Front, Morocco)
High Atlas Morocco Neotectonics Quaternary slip rates seismic risk
2015/8/26
Recent studies have shown that the uplift of the Moroccan Atlas Mountains resulted from a combination of crustal shortening and mantle thermal processes in the interior of the African plate. Within th...
Intermediate Water Formation at the Japan/East Sea Subpolar Front
East Sea Subpolar Front Intermediate Water Formation
2015/7/24
Upper-ocean fronts play an important role in determining upper pycnocline water properties by providing an efficient conduit for communicating atmospheric forcing into the stratified interior. Mesosca...
We obtain a criterion for pulsating front speed-up by general periodic incompressible flows in two dimensions and in the presence of KPP nonlinearities. We achieve this by showing that the ratio of th...
Frontogenesis and Frontal Progression of a Trapping-Generated Estuarine Convergence Front and Its Influence on Mixing and Stratification
Front Frontogenesis Trapping Convergence front Lateral circulation
2015/6/30
Estuarine fronts are well known to influence transport of waterborne constituents such as phytoplankton and sediment, yet due to their ephemeral nature, capturing the physical driving mechanisms and t...
The paper presents a model of a dynamic crack with a wavy surface. So far, theoretical analysis of crack front waves has been performed only for in-plane perturbations of the crack front. In the prese...