搜索结果: 1-15 共查到“理学 Diffusion”相关记录344条 . 查询时间(0.203 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Bubbling and extinction for some fast diffusion equations in bounded domains
有界域 快速扩散方程 气泡 消光
2023/11/13
Motivated by the Wisconsin octupole experiments on anomalous diffusion of hydrogen plasma across a purely poloidal octupole magnetic field, Berryman-Holland 1980 proved the stability of separable solu...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Mixing flow and advection-diffusion-reaction equations
混合流 平流 扩散反应方程
2023/5/18
In the study of incompressible fluid, one fundamental phenomenon that arises in a wide variety of application is dissipation enhancement by so-called mixing flow. In this talk, I will give a brief int...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A diffusion scheme based on the foliation graph stripe for optimizing discrete harmonic foliation energy
叶子图条带 优化 离散谐波 叶能量 扩散方案
2023/4/28
Consumer expenditures in the United Kingdom account for over 50% of Gross Domestic Product on the expenditure side, yet their impact on economic activity is often Global geometric structures live on m...
国家天元数学西北中心成功举办Conference on Nonlinear Analysis and Reaction-Diffusion Equations（图）
非线性分析 反应扩散方程 国家天元数学西北中心 学术研讨会
2023/1/3
2021年8月18日-20日，由国家天元数学西北中心主办的非线性分析与反应扩散方程学术研讨会依托线上腾讯会议平台成功举办。本次研讨会为从事非线性分析和反应扩散方程相关领域的专家、学者和研究生提供了一个高水平的学术交流平台。会议期间，邀请了来自清华大学、美国威廉玛丽学院、加拿大麦吉尔大学、加拿大纽芬兰纪念大学、美国迈阿密大学、中国科学技术大学、上海交通大学、兰州大学、四川大学等相关领域的知名专家作了...
中国地质大学科学技术发展院郭会荣等环境学院 INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, FEB 2018. Soret effect on the diffusion of CO2 in aqueous solution under high-pressure
高压；条件下；CO2；水溶液；热扩散
2021/10/21
国际知名期刊《International Journal of Heat and Mass Transfer》上近日刊发了中国地质大学环境学院郭会荣教授团队的论文——高压条件下CO2在水溶液中的热扩散研究（Soret effect on the diffusion of CO2 in aqueous solution under high-pressure）。
Hydrogen diffusion in the apatite-water system: Fluorapatite parallel to the c-axis
apatite hydrogen diffusion H-D exchange H2O SIMS
2017/4/10
Many studies in the past decade have sought to explore the origin and evolution of water in planetary bodies based on
the hydrogen isotopic compositions of apatite. However, no investigation has stud...
International Workshop on Nonlinear Analysis and Reaction-Diffusion Equations
International Workshop Nonlinear Analysis and Reaction-Diffusion Equations
2017/3/28
“International Workshop on Nonlinear Analysis and Reaction-Diffusion Equations”, is to be held at Jiangsu University, Zhenjiang, China, June 3-5, 2017 (with June 2nd as registration day). The aim of t...
A meteoroid penetrating the Earth’s atmosphere leaves behind a trail
of dense plasma embedded in the lower E/upper D-region ionosphere. While
radar measurements of meteor trail evolution have been c...
Patterning Barriers to Lateral Diffusion in Supported Lipid Bilayer Membranes by Blotting and Stamping
Patterning Barriers Lateral Diffusion Lipid Bilayer Membranes Blotting Stamping
2016/5/23
Two new methods are introduced for patterning fluid lipid bilayer membranes on solid supports. These methods are based on the observation that supported membranes undergo self-limiting lateral expansi...
Closed-form expansions of discretely monitored asian options in diffusion models
discretely monitored Asian options the CEV model the CIR process the Black-Scholes model the Brennan and Schwartz process small-time expansion
2016/1/20
In this paper we propose a closed-form asymptotic expansion approach to pricing discretely monitored Asian options in general one-dimensional diffusion models. Our expansion is a small-time expansion ...
Mathematics of gamete diffusion and fertilization in aquatic habitats
gamete diffusion aquatic habitats
2015/11/12
Mathematics of gamete diffusion and fertilization in aquatic habitats
Steady advection–diffusion around finite absorbers in two-dimensional potential flows
Steady advection–diffusion finite absorbers two-dimensional potential flows
2015/10/16
We consider perhaps the simplest non-trivial problem in advection–diffusion – a finite absorber of arbitrary cross-section in a steady two-dimensional potential flow of concentrated fluid. This proble...
Anisotropic diffusion in continuum relaxation of stepped crystal surfaces
Anisotropic diffusion continuum relaxation stepped crystal surfaces
2015/10/16
We study the continuum limit in 2+1 dimensions of nanoscale anisotropic diffusion processes on crystal surfaces relaxing to become flat below roughening. Our main result is a continuum law for the sur...
Homogenization of reconstructed crystal surfaces:Fick’s law of diffusion
Homogenization reconstructed crystal surfaces Fick’s law of diffusion
2015/10/16
Fick’s law for the diffusion of adsorbed atoms adatoms on crystal surfaces below roughening is generalized to account for surface reconstruction. In this case, material parameters vary spatially at ...
GENERALIZED FRONTS FOR ONE-DIMENSIONAL REACTION-DIFFUSION EQUATIONS
GENERALIZED FRONTS REACTION-DIFFUSION EQUATIONS
2015/10/15
For a class of one-dimensional reaction-diffusion equations, we establish the existence of generalized fronts, as recently defined by Berestycki and Hamel. We also prove uniform nondegeneracy estimate...