Literatura académica sobre el tema "MsFEM"
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Artículos de revistas sobre el tema "MsFEM"
Hollaus, Karl. "A MSFEM to simulate the eddy current problem in laminated iron cores in 3D". COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, n.º 5 (2 de septiembre de 2019): 1667–82. http://dx.doi.org/10.1108/compel-12-2018-0538.
Texto completoLegoll, Frédéric, Pierre-Loïk Rothé, Claude Le Bris y Ulrich Hetmaniuk. "An MsFEM Approach Enriched Using Legendre Polynomials". Multiscale Modeling & Simulation 20, n.º 2 (30 de junio de 2022): 798–834. http://dx.doi.org/10.1137/21m1444151.
Texto completoLe Bris, Claude, Frédéric Legoll y Alexei Lozinski. "An MsFEM Type Approach for Perforated Domains". Multiscale Modeling & Simulation 12, n.º 3 (enero de 2014): 1046–77. http://dx.doi.org/10.1137/130927826.
Texto completoKlimczak, Marek y Witold Cecot. "An adaptive MsFEM for nonperiodic viscoelastic composites". International Journal for Numerical Methods in Engineering 114, n.º 8 (12 de febrero de 2018): 861–81. http://dx.doi.org/10.1002/nme.5768.
Texto completoKlimczak, Marek y Witold Cecot. "Higher Order Multiscale Finite Element Method for Heat Transfer Modeling". Materials 14, n.º 14 (8 de julio de 2021): 3827. http://dx.doi.org/10.3390/ma14143827.
Texto completoDegond, Pierre, Alexei Lozinski, Bagus Putra Muljadi y Jacek Narski. "Crouzeix-Raviart MsFEM with Bubble Functions for Diffusion and Advection-Diffusion in Perforated Media". Communications in Computational Physics 17, n.º 4 (abril de 2015): 887–907. http://dx.doi.org/10.4208/cicp.2014.m299.
Texto completoLi, Cui Yu y Xiao Tao Zhang. "Multi-Scale Finite Element Method and its Application". Advanced Materials Research 146-147 (octubre de 2010): 1583–86. http://dx.doi.org/10.4028/www.scientific.net/amr.146-147.1583.
Texto completoChamoin, Ludovic y Frédéric Legoll. "Goal-oriented error estimation and adaptivity in MsFEM computations". Computational Mechanics 67, n.º 4 (17 de marzo de 2021): 1201–28. http://dx.doi.org/10.1007/s00466-021-01990-x.
Texto completoBal, Guillaume y Wenjia Jing. "Corrector Theory for MsFEM and HMM in Random Media". Multiscale Modeling & Simulation 9, n.º 4 (octubre de 2011): 1549–87. http://dx.doi.org/10.1137/100815918.
Texto completoEfendiev, Yalchin, Juan Galvis y M. Sebastian Pauletti. "Multiscale Finite Element Methods for Flows on Rough Surfaces". Communications in Computational Physics 14, n.º 4 (octubre de 2013): 979–1000. http://dx.doi.org/10.4208/cicp.170512.310113a.
Texto completoTesis sobre el tema "MsFEM"
Madiot, François. "Méthodes éléments finis de type MsFEM pour des problèmes d'advection-diffusion". Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1052/document.
Texto completoThis work essentially deals with the development and the study of multiscale finite element methods for multiscale advection-diffusion problems in the advection-dominated regime. Two types of approaches are investigated: Take into account the advection in the construction of the approximation space, or apply a stabilization method. We begin with advection-dominated advection-diffusion problems in heterogeneous media. We carry on with advection-dominated advection-diffusion problems posed in perforated domains.Here, we focus on the Crouzeix-Raviart type boundary condition for the construction of the multiscale finite elements. We consider two different situations depending on the condition prescribed on the boundary of the perforations: the homogeneous Dirichlet condition or the homogeneous Neumann condition. This study relies on a coercivity assumption.Lastly, we consider a general framework where the advection-diffusion operator is not coercive, possibly in the advection-dominated regime. We propose a Finite Element approach based on the use of an invariant measure associated to the adjoint operator. This approach is unconditionally well-posed in the mesh size. We compare it numerically to a standard stabilization method
Biezemans, Rutger. "Multiscale methods : non-intrusive implementation, advection-dominated problems and related topics". Electronic Thesis or Diss., Marne-la-vallée, ENPC, 2023. http://www.theses.fr/2023ENPC0029.
Texto completoThis thesis is concerned with computational methods for multiscale partial differential equations (PDEs), and in particular the multiscale finite element method (MsFEM). This is a finite element type method that performs a Galerkin approximation of the PDE on a problem-dependent basis. Three particular difficulties related to the method are addressed in this thesis. First, the intrusiveness of the MsFEM is considered. Since the MsFEM uses a problem-dependent basis, it cannot easily be implemented in generic industrial codes and this hinders its adoption beyond academic environments. A generic methodology is proposed that translates the MsFEM into an effective problem that can be solved by generic codes. It is shown by theoretical convergence estimates and numerical experiments that the new methodology is as accurate as the original MsFEM. Second, MsFEMs for advection-dominated problems are studied. These problems cause additional instabilities for naive discretizations. An explanation is found for the instability of previously proposed methods. Numerical experiments show the stability of an MsFEM with Crouzeix-Raviart type boundary conditions enriched with bubble functions. Third, a new convergence analysis for the MsFEM is presented that, for the first time, establishes convergence under minimal regularity hypotheses. This bridges an important gap between the theoretical understanding of the method and its field of application, where the usual regularity hypotheses are rarely satisfied
Pham, Thanh Vinh. "The performance of Multilevel Structural Equation Modeling (MSEM) in comparison to Multilevel Modeling (MLM) in multilevel mediation analysis with non-normal data". Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7077.
Texto completoMbogning, Cyprien. "Inférence dans les modèles conjoints et de mélange non-linéaires à effets mixtes". Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112415/document.
Texto completoThe main goal of this thesis is to develop new methodologies for the analysis of non linear mixed-effects models, along with their implementation in accessible software and their application to real problems. We consider particularly extensions of non-linear mixed effects model to mixture models and joint models. The study of these two extensions is the essence of the work done in this document, which can be divided into two major parts. In the first part, we propose, in order to have a better control of heterogeneity linked to data of patient issued from several clusters, extensions of NLMEM to mixture models. We suggest in this Thesis to combine the EM algorithm, traditionally used for mixtures models when the variables studied are observed, and the SAEM algorithm, used to estimate the maximum likelihood parameters when these variables are not observed. The resulting procedure, referred MSAEM, allows avoiding the introduction of a simulation step of the latent categorical covariates in the estimation algorithm. This algorithm appears to be extremely fast, very little sensitive to parameters initialization and converges to a (local) maximum of the likelihood. This methodology is now available under the Monolix software. The second part of this thesis deals with the joint modeling of the evolution of a biomarker over time and the time between successive appearances of a possibly censored event of interest. We consider among other, the right censoring and interval censorship of multiple events. The parameters of the resulting joint model are estimated by maximizing the exact joint likelihood by using a MCMC-SAEM algorithm. The proposed methodology is now available under Monolix
Peng, Shuiran. "Analyse mathématique et numérique de plusieurs problèmes non linéaires". Thesis, Poitiers, 2018. http://www.theses.fr/2018POIT2306/document.
Texto completoThis thesis is devoted to the theoretical and numerical study of several nonlinear partial differential equations, which occur in the mathematical modeling of phase separation and micro-electromechanical system (MEMS). In the first part, we study higher-order phase separation models for which we obtain well-posedness and dissipativity results, together with the existence of global attractors and, in certain cases, numerical simulations. More precisely, we consider in this first part higher-order Allen-Cahn and Cahn-Hilliard equations with a regular potential and higher-order Allen-Cahn equation with a logarithmic potential. Moreover, we study higher-order anisotropic models and higher-order generalized Cahn-Hilliard equations, which have applications in biology, image processing, etc. We also consider the hyperbolic relaxation of higher-order anisotropic Cahn-Hilliard equations. In the second part, we develop semi-implicit and implicit semi-discrete, as well as fully discrete, schemes for solving the nonlinear partial differential equation, which describes both the elastic and electrostatic effects in an idealized MEMS capacitor. We analyze theoretically the stability of these schemes and the convergence under certain assumptions. Furthermore, several numerical simulations illustrate and support the theoretical results
Efendiev, Yalchin R. "The Multiscale Finite Element Method (MsFEM) and Its Applications". Thesis, 1999. https://thesis.library.caltech.edu/4487/1/Efendiev_yr_1999.pdf.
Texto completoMultiscale problems occur in many scientific and engineering disciplines, in petroleum engineering, material science, etc. These problems are characterized by the great deal of spatial and time scales which make it difficult to analyze theoretically or solve numerically. On the other hand, the large scale features of the solutions are often of main interest. Thus, it is desirable to have a numerical method that can capture the effect of small scales on large scales without resolving the small scale details.
In the first part of this work we analyze the multiscale finite element method (MsFEM) introduced in [28] for elliptic problems with oscillatory coefficients. The idea behind MsFEM is to capture the small scale information through the base functions constructed in elements that are larger than the small scale of the problem. This is achieved by solving for the finite element base functions from the leading order of homogeneous elliptic equation. We analyze MsFEM for different situations both analytically and numerically. We also investigate the origin of the resonance errors associated with the method and discuss the ways to improve them.
In the second part we discuss flow based upscaling of absolute permeability which is an important step in the practical simulations of flow through heterogeneous formations. The central idea is to compute the upscaled, grid-block permeability from fine scale solutions of the flow equation. It is well known that the grid block permeability may be strongly influenced by the boundary conditions imposed on the flow equations and the size of grid blocks. We analyze the effects of the boundary conditions and grid block sizes on the computed grid block absolute permeabilities. Moreover, we employ the ideas developed in the analysis of MsFEM to improve the computed values of absolute permeability.
The last part of the work is the application of MsFEM as well as upscaling of absolute permeability on upscaling of two-phase flow. In this part we consider coarse models using MsFEM. We demonstrate the efficiency of these models for practical problems. Moreover, we show that these models improve the existing approaches.
Zhong, Hui-Ru y 鍾惠如. "A Study Of MSEM in Learning Outcomes-A Case in IEET". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/83341245068650575499.
Texto completo元智大學
工業工程與管理學系
101
Purpose of this study was to study assess the learning effect through multilevel structural equation model and collect data from a department participating IEET certification in Taiwan. Three different questionnaires used in this study course questionnaire,core competencies questionnaire and alumni questionnaire. And respondents are undergraduate student’s from the department. Procedure is as follows (1)calculate three questionnaires intra-class correlation index to confirm the data which fit the requirement of Multilevel SEM (2)calculate questionnaire’s reliability, and fit the model by confirmatory factory analysis. And then calculate variables factor loadings. (3)we discuss causality between course and core competencies indirect effect, and causality educational goals and core competencies in alumni. The analytic show that result indirect effect is not significant, but causality educational goals and core competencies in alumni is significant. The possible explanation is that the in-school students have not yet entered the job-market, so less understand how to cooperate what have learned into what will be used in his/her job. Keyword : Multilevel structural equation model、Intra-Class coefficient、Indirect effect
Costello, Kirt Allen. "Moving the Rice MSFM into a real-time forecast mode using solar wind driven forecast modules". Thesis, 1998. http://hdl.handle.net/1911/19251.
Texto completo"Resilience and Vulnerability Mechanisms in the Within-Day Pain Coping Process: Test of a Two-Factor Mediation Model". Doctoral diss., 2018. http://hdl.handle.net/2286/R.I.50607.
Texto completoDissertation/Thesis
Doctoral Dissertation Psychology 2018
Capítulos de libros sobre el tema "MsFEM"
Klimczak, Marek y Witold Cecot. "MsFEM Upscaling for the Coupled Thermo-Mechanical Problem". En Computational Science – ICCS 2021, 562–75. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77977-1_45.
Texto completoLe Bris, Claude, Frédéric Legoll y Alexei Lozinski. "MsFEM à la Crouzeix-Raviart for Highly Oscillatory Elliptic Problems". En Partial Differential Equations: Theory, Control and Approximation, 265–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41401-5_11.
Texto completoHasan, Mohamad K. y Xuegang (Jeff) Ban. "A Link-Node Nonlinear Complementarity Model for a Multiclass Simultaneous Transportation Dynamic User Equilibria". En Transportation Systems and Engineering, 370–92. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8473-7.ch018.
Texto completoActas de conferencias sobre el tema "MsFEM"
Legoll, F. y L. Chamoin. "Certified Computations with PGD Model Reduction in the MsFEM Framework". En 10th International Conference on Adaptative Modeling and Simulation. CIMNE, 2021. http://dx.doi.org/10.23967/admos.2021.025.
Texto completoHollaus, Karl, Joachim Schöberl y Markus Schöbinger. "MOR for the MSFEM of the Eddy Current Problem in Linear Laminated Media". En 9th Vienna Conference on Mathematical Modelling. ARGESIM Publisher Vienna, 2018. http://dx.doi.org/10.11128/arep.55.a55284.
Texto completoSchöbinger, Markus, Joachim Schöberl y Karl Hollaus. "MSFEM for the Linear 2D1D-Problem of Eddy Currents in Thin Iron Sheets". En 9th Vienna Conference on Mathematical Modelling. ARGESIM Publisher Vienna, 2018. http://dx.doi.org/10.11128/arep.55.a55285.
Texto completoSchobinger, Markus y Karl Hollaus. "A Novel MSFEM Approach Based on the A-Formulation for Eddy Currents in Iron Sheets". En 2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, 2022. http://dx.doi.org/10.1109/cefc55061.2022.9940800.
Texto completoSchobinger, Markus y Karl Hollaus. "A Computationally Cheap Error Estimator for the 3D Eddy Current Problem Using a MSFEM Approach Based on the A-Formulation". En 2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, 2022. http://dx.doi.org/10.1109/cefc55061.2022.9940671.
Texto completoKoruk, Hasan y Kenan Y. Sanliturk. "Assessment of Modal Strain Energy Method: Advantages and Limitations". En ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82281.
Texto completoWang, Xiaowei, Liying Cheng, Danyang Huang, Xuanshuang Gao, Daili Liang, Liuye He, Zhimei Zhang, Nan Li y Wenjun Tan. "Segmentation of pulmonary vessels based on MSFM method". En 2020 IEEE International Conference on E-health Networking, Application & Services (HEALTHCOM). IEEE, 2021. http://dx.doi.org/10.1109/healthcom49281.2021.9399043.
Texto completoFei Wang, Sixin Liu y Xinxin Qu. "Ray-based crosshole radar traveltime tomography using MSFM method". En 15th International Conference on Ground-Penetrating Radar (GPR) 2014. IEEE, 2014. http://dx.doi.org/10.1109/icgpr.2014.6970494.
Texto completoXu, Yiwen, Dengfeng Liu, Zhiquan Lin, Tiesong Zhao y Nian He. "MSFEN-AM: A Non-intrusive Load Identification Method for Power Saving". En 2023 IEEE 11th International Conference on Information, Communication and Networks (ICICN). IEEE, 2023. http://dx.doi.org/10.1109/icicn59530.2023.10393122.
Texto completoKumar, Komal, Balakrishna Pailla, Kalyan Tadepalli y Sudipta Roy. "Robust MSFM Learning Network for Classification and Weakly Supervised Localization". En 2023 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW). IEEE, 2023. http://dx.doi.org/10.1109/iccvw60793.2023.00258.
Texto completoInformes sobre el tema "MsFEM"
Hilmer, R. V. A Magnetospheric Neutral Sheet-Oriented Coordinate System for MSM and MSFM Applications. Fort Belvoir, VA: Defense Technical Information Center, julio de 1997. http://dx.doi.org/10.21236/ada338067.
Texto completo