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Mathematical studies for diffusion of contaminants

Mathematical studies for diffusion of contaminants
污染物扩散的数学研究
批准号:
23654030
负责人:
YAMAMOTO Masahiro
金额:
$2.25万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Challenging Exploratory Research
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2013

项目摘要

项目成果

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中文摘要
翻译
众所周知,经典的对流扩散方程不能很好地描述污染物在土壤等非均质介质中的扩散过程,对于维护环境安全的实际方法,我们研究了连续时间随机游走作为微观模型和分数阶扩散方程作为宏观模型。我们的研究成果如下:(1)我们将连续时间随机游走模型和分数阶扩散方程模型联系起来,并在此基础上提出了更好的模型。(2)数学分析,如解的唯一性和渐近性等。(3)污染源反问题的数学分析和数值方法。
英文摘要
It is known that the classical advection-diffusion equation is not an adequate model for diffusion processs of contaminants in heterogenous media such as soil.For real methods for keeping the environmental safety, we have studied the con-tinuous-time random walk as microscopic model and the fractional diffusion quation as macroscopic model. Our achievements are as follows: (1) We relate both models: the continuous-time random walk and the fractional diffusion quation, and derive other from another, and we propose better models on the basis of such studies. (2) Mathematical analysis such as the unique existence of solution and the asymptotic behavior. (3) Mathematical analysis and numerical methods for inverse contamination sourceproblems.
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DOI: --
发表时间:
期刊:
影响因子: --
作者: [Bingham N. H., Inoue, A. and Kasahara, Y., Yoshimasa Nakamura, M. Yamamoto]
通讯作者: M. Yamamoto
DOI: 10.1142/s0219876213410016
发表时间: 2013-03
期刊: International Journal of Computational Methods
影响因子: 1.7
作者: [Leevan Ling;Masahiro Yamamoto]
通讯作者: Leevan Ling;Masahiro Yamamoto
地中における物質輸送モデルCTRWおよびADEの相互関連性について
地下大众运输模型 CTRW 和 ADE 之间的相互关系
DOI: --
发表时间: 2012
期刊: 土木学会論文集B1
影响因子: --
作者: [小田桐康, 山川素子, 羽田野祐子]
通讯作者: 羽田野祐子
DOI: 10.1088/0266-5611/29/6/065019
发表时间: 2013-06
期刊: Inverse Problems
影响因子: 2.1
作者: [Yuri Luchko;W. Rundell;Masahiro Yamamoto;L. Zuo]
通讯作者: Yuri Luchko;W. Rundell;Masahiro Yamamoto;L. Zuo
An analisys on the division of roles between substantive and "procedural" review of the legislative discretion.
Pathogenic and genetic analysis of Toxoplasma by Japan, China and South Korea
  • 批准号:
    18KK0226
  • 项目类别:
    Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
  • 资助金额:
    $11.48万
  • 财政年份:
    2018
  • 负责人:
    YAMAMOTO Masahiro
  • 依托单位:
A Study in the Organizational Process of Capital Investment and M&A
  • 批准号:
    17K04074
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 资助金额:
    $2.75万
  • 财政年份:
    2017
  • 负责人:
    YAMAMOTO Masahiro
  • 依托单位:
Reproduction of prebiotic metabolic pathways with deep-sea hydrothermal electricity
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