期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
On the Evolutionary Dynamics of the Cahn-Hilliard Equation with Cut-Off Mass Source
1
作者 Chaeyoung Lee hyundong kim +4 位作者 Sungha Yoon Jintae Park Sangkwon kim Junxiang Yang Junseok kim 《Numerical Mathematics(Theory,Methods and Applications)》 SCIE CSCD 2021年第1期242-260,共19页
We investigate the effect of cut-off logistic source on evolutionary dynamics of a generalized Cahn-Hilliard(CH)equation in this paper.It is a well-known fact that the maximum principle does not hold for the CH equati... We investigate the effect of cut-off logistic source on evolutionary dynamics of a generalized Cahn-Hilliard(CH)equation in this paper.It is a well-known fact that the maximum principle does not hold for the CH equation.Therefore,a generalized CH equation with logistic source may cause the negative concentration blow-up problem in finite time.To overcome this drawback,we propose the cut-off logistic source such that only the positive value greater than a given critical concentration can grow.We consider the temporal profiles of numerical results in the one-,two-,and three-dimensional spaces to examine the effect of extra mass source.Numerical solutions are obtained using a finite difference multigrid solver.Moreover,we perform numerical tests for tumor growth simulation,which is a typical application of generalized CH equations in biology.We apply the proposed cut-off logistic source term and have good results. 展开更多
关键词 Cahn-Hilliard equation logistic source finite difference method tumor growth application
原文传递
Impact of non-Hermitian mode interaction on inter-cavity light transfer
2
作者 HYEON-HYE YU SUNJAE GWAK +5 位作者 JINHYEOK RYU hyundong kim JI-HWAN kim JUNG WAN RYU CHIL-MIN kim CHANG HWAN YI 《Photonics Research》 SCIE EI CAS CSCD 2022年第5期1232-1237,共6页
Understanding inter-site mutual mode interaction in coupled physical systems is essential to comprehend large compound systems,as this local interaction determines the successive multiple inter-site energy transfer ef... Understanding inter-site mutual mode interaction in coupled physical systems is essential to comprehend large compound systems,as this local interaction determines the successive multiple inter-site energy transfer efficiencies.In the present study,we demonstrate that only the non-Hermitian coupling can correctly account for the light transfer between two coupled optical cavities.We also reveal that the non-Hermitian coupling effect becomes crucial as the system dimension decreases.Our results provide important insight for handling general-coupled devices in the subwavelength regime. 展开更多
关键词 interaction TRANSFER COUPLING
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部