Inverse Problems in Science and Engineering最新文献_第7页

Nonlinear conjugate gradient method for identifying Young's modulus of the elasticity imaging inverse problem 弹性成像反问题杨氏模量的非线性共轭梯度辨识方法

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-04-02 DOI: 10.1080/17415977.2021.1905638

Talaat Abdelhamid, Rongliang Chen, M. Alam

引用次数: 2

Estimation method for inverse problems with linear forward operator and its application to magnetization estimation from magnetic force microscopy images using deep learning 线性正演算子反问题估计方法及其在深度学习磁力显微镜图像磁化估计中的应用

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-29 DOI: 10.1080/17415977.2021.1905637

Hajime Kawakami, H. Kudo

{"title":"Estimation method for inverse problems with linear forward operator and its application to magnetization estimation from magnetic force microscopy images using deep learning","authors":"Hajime Kawakami, H. Kudo","doi":"10.1080/17415977.2021.1905637","DOIUrl":"https://doi.org/10.1080/17415977.2021.1905637","url":null,"abstract":"ABSTRACT This study considers an inverse problem, where the corresponding forward problem is given by a finite-dimensional linear operator T. The inverse problem has the following form: It is assumed that the number of patterns that the unknown quantity can take is finite. Then, even if the unknown quantity may be uniquely determined from the data. This case is the subject of this study. We propose a method for solving this inverse problem using numerical calculations. A famous inverse problem requires the estimation of the unknown magnetization distribution or magnetic charge distribution in an anisotropic permanent magnet sample from the magnetic force microscopy images. It is known that the solution of this problem is not unique in general. In this work, we consider the case where a magnetic sample comprises cubic cells, and the unknown magnetic moment is oriented either upward or downward in each cell. This discretized problem is an example of the above-mentioned inverse problem: Numerical calculations were carried out to solve this model problem employing our method and deep learning. The experimental results show that the magnetization can be estimated roughly up to a certain depth.","PeriodicalId":54926,"journal":{"name":"Inverse Problems in Science and Engineering","volume":"29 1","pages":"2131 - 2164"},"PeriodicalIF":1.3,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17415977.2021.1905637","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42332185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inverse singular value problem for nonsymmetric ahead arrow matrix 非对称前进箭头矩阵的奇异值逆问题

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-29 DOI: 10.1080/17415977.2021.1902515

F. Fathi, M. A. Fariborzi Araghi, S. A. Shahzadeh Fazeli

引用次数: 1

A modified quasi-reversibility method for inverse source problem of Poisson equation 泊松方程逆源问题的一种修正拟可逆性方法

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-22 DOI: 10.1080/17415977.2021.1902516

Jin Wen, Li-Ming Huang, Zhuan-Xia Liu

引用次数: 5

Unknown source identification problem for space-time fractional diffusion equation: optimal error bound analysis and regularization method 时空分数阶扩散方程的未知源识别问题：最优误差界分析和正则化方法

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-19 DOI: 10.1080/17415977.2021.1900841

Fan Yang, Qian-Chao Wang, Xiao-Xiao Li

{"title":"Unknown source identification problem for space-time fractional diffusion equation: optimal error bound analysis and regularization method","authors":"Fan Yang, Qian-Chao Wang, Xiao-Xiao Li","doi":"10.1080/17415977.2021.1900841","DOIUrl":"https://doi.org/10.1080/17415977.2021.1900841","url":null,"abstract":"In this paper, the problem of unknown source identification for the space-time fractional diffusion equation is studied. In this equation, the time fractional derivative used is a new fractional derivative, namely, Caputo-Fabrizio fractional derivative. We have illustrated that this problem is an ill-posed problem. Under the assumption of a priori bound, we obtain the optimal error bound analysis of the problem under the source condition. Moreover, we use a modified quasi-boundary regularization method and Landweber iterative regularization method to solve this ill-posed problem. Based on a priori and a posteriori regularization parameter selection rules, the corresponding convergence error estimates of the two regularization methods are obtained, respectively. Compared with the modified quasi-boundary regularization method, the convergence error estimate of Landweber iterative regularization method is order-optimal. Finally, the advantages, stability and effectiveness of the two regularization methods are illustrated by examples with different properties.","PeriodicalId":54926,"journal":{"name":"Inverse Problems in Science and Engineering","volume":"29 1","pages":"2040 - 2084"},"PeriodicalIF":1.3,"publicationDate":"2021-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17415977.2021.1900841","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45951997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The generalized flexibility matrix method for structural damage detection with incomplete mode shape data 不完全振型数据下结构损伤检测的广义柔度矩阵法

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-15 DOI: 10.1080/17415977.2021.1900840

Haifeng Liu, Baisheng Wu, Zhengguang Li

引用次数: 5

Inverse source problem of heat conduction equation with time-dependent diffusivity on a spherical symmetric domain 球对称域上含时扩散率热传导方程的反源问题

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-13 DOI: 10.1080/17415977.2021.1899172

Xiaoxiao Geng, Hao Cheng, Mian Liu

引用次数: 10

Sequential estimation of creatinine removal by a haemodialyser 血液透析器去除肌酸酐的顺序估计

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-11 DOI: 10.1080/17415977.2021.1897123

Felipe Y. Magalhães, H. Orlande, J. Suassuna

引用次数: 0

Identification of the air gap thermal resistance in the model of binary alloy solidification including the macrosegregation and the material shrinkage phenomena 包含宏观偏析和材料收缩现象的二元合金凝固模型中气隙热阻的识别

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-05 DOI: 10.1080/17415977.2021.1897584

A. Zielonka, E. Hetmaniok, D. Słota

引用次数: 0

Inverse design of 3D curved ducts using a 3D-upgraded ball-spine algorithm 使用三维升级的球脊算法进行三维弯曲管道的逆向设计

IF 1.3 4区工程技术

Inverse Problems in Science and Engineering Pub Date : 2021-03-01 DOI: 10.1080/17415977.2021.1894143

A. Kariminia, M. Nili-Ahmadabadi, K. Kim

{"title":"Inverse design of 3D curved ducts using a 3D-upgraded ball-spine algorithm","authors":"A. Kariminia, M. Nili-Ahmadabadi, K. Kim","doi":"10.1080/17415977.2021.1894143","DOIUrl":"https://doi.org/10.1080/17415977.2021.1894143","url":null,"abstract":"ABSTRACT Achieving a unique solution for the 3D inverse design of a curved duct is a challenging problem in aerodynamic design. The centre-line curvature, and cross-sections’ area and shape of a 3D curved duct influence the wall pressure distribution. All the previous developments on the ball-spine method were limited to 2D and quasi-3D ducts, in which only the upper and lower lines of the symmetry plane were modified based on the target pressure distribution. In the present work, the ball-spine method was three-dimensionally developed for the design of curved ducts while considering the effects of cross-sectional shape and area. To validate the method, all the nodes of a 3D duct wall were iteratively corrected under the modified ball-spine method to reach the target geometry. The effects of the ball movement directions (spines) and the grid generation scheme in achieving the unique solution in inverse design were evaluated. The results showed that the new method converges to a unique solution only if the streamline-based grids are applied for the flow numerical solution, and the horizontal spines are considered as the directions for the displacement of the nodes. Finally, the wall pressure distribution of a high-deflected 3D S-shaped diffuser was three-dimensionally modified to reduce the separation, secondary flow, and flow distortion.","PeriodicalId":54926,"journal":{"name":"Inverse Problems in Science and Engineering","volume":"29 1","pages":"1946 - 1980"},"PeriodicalIF":1.3,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17415977.2021.1894143","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49558023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1