合作者关系

[中文学位论文] 线性正则域的采样率转换理论研究

作者：范帅帅

学位名称：硕士

出处：北京理工大学

[中文学位论文] 几类函数方程在抽象空间上的 Ulam-Hyers 稳定性

作者：丁亚莉

学位名称：博士

出处：北京理工大学

[中文学位论文] 小波分析和数学形态学在图像边缘检测中的应用

作者：段培超

学位名称：硕士

出处：北京理工大学 2004

关键词：小波；小波包；数学形态学；边缘检测

摘要：本文总结了目前国内外已有的各种主要的图像边缘检测方法，评述了它们各自的优劣。分别对小波、小波包和数学形态学各自的发展历史及其基本理论作了深入、细致的讨论，并对国内外应用这两种方法进行边缘检测的基本原理、实现算法进行了介绍和评价。本文考虑到小波变换和数学形态In this paper, we try ...

[中文学位论文] 偏微分方程、变分法和小波分析在图像去噪中的应用

作者：梁洁

出处：北京理工大学 2005

摘要：本文在回顾了经典的图像去噪方法之后，系统地介绍了近年来活跃于图像去噪领域的偏微分方程(PDE)模型以及变分模型，分析了两者之间的联系，指出变分模型虽然从另一个出发点实现图像去噪，但实质仍然是偏微分方程模型。之后本文简述了小波的由来，小波分析的基本概念和基本理论，介绍了小波分析在图像去噪中的应用。最 ...

[外文期刊] Inverse scattering transforms of the inhomogeneous fifth-order nonlinear Schrödinger equation with zero/nonzero boundary conditions SCIE 源

作者：Jin-Jin Mao;Shou-Fu Tian;Tian-Zhou Xu;Lin-Fei Shi （¹School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China;²School of Mathematics, China University of Mining and Technology, Xuzhou 221116, China）

出处：Communications in Theoretical Physics 2022

关键词：RIEMANN-HILBERT PROBLEMS;MULTIPLE-POLE SOLUTIONS;LONG-TIME ASYMPTOTICS;N-SOLITON SOLUTIONS

摘要：The present work studies the inverse scattering transforms (IST) of the inhomogeneous fifth-order nonlinear Schrödinger (NLS) equation with zero bound ...

[外文期刊] Gyrotactic microorganisms and viscous dissipation features on radiative Casson nanoliquid over a moving cylinder with activation energy SCIE EI

作者：Azam, Muhammad^{1, 2};Xu, Tianzhou³;Nayak, M.K.⁴;Khan, Waqar Azeem⁵;Khan, M.⁶; （¹School of Mathematics and Statistics, Yulin University, Yulin, China;²Mathematics and Interdisciplinary Research Center of Yulin City, Yulin, China;³School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, China;⁴Department of Mechanical Engineering, ITER, Siksha O Anusandhan University, Bhubaneswar, India;⁵Nonlinear Analysis and Applied Mathematics (NAAM)-Research Group, Department of Mathematics Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;⁶Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan）

出处：Waves in Random and Complex Media 2022

关键词：CHEMICAL-REACTION;HEAT-TRANSFER;FLOW;NANOFLUID;BIOCONVECTION;NANOPARTICLES;SURFACE

摘要：Role of activation energy, nanoparticles and gyrotactic microorganisms with bioconvection has a great significance in geothermal engineering, biotechn ...

[外文期刊] The dynamics of nonlocal diffusion problems with a free boundary in heterogeneous environment

作者：Shi, Linfei;Xu, Tianzhou （School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, China Linfei Shi, School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China. Communicated by: C. Sun School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, China）

出处：Mathematical Methods in the Applied Sciences 2024

关键词：accelerated spreading;free boundary;heterogeneous environment;nonlocal diffusion;spreading and vanishing;spreading speed

摘要：This paper studies two nonlocal diffusion problems with a free boundary and a fixed boundary in heterogeneous environment. The main goal is to underst ...