Results 11 to 20 of about 186,953 (245)
Size optimization of micro-frame structures for designing multiscale structures
Nihon Kikai Gakkai ronbunshu, 2022 In this paper, we propose a multi-scale optimal design method for determining the member diameters of minute micro-frame structures in a macro-structure. The microstructures and the macrostructure are bridged by the homogenization method.
Yutaro TAKUMI, Masatoshi SHIMODA
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Multi-material robust topology optimization considering uncertainty of material properties
Nihon Kikai Gakkai ronbunshu, 2021 This paper proposes a solution to a multi-material robust topology optimization problem of density type considering material uncertainties based on H1 gradient method.
Kohei SHINTANI +2 more
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Shape optimum design of porous structure for minimizing maximum thermal stress
Nihon Kikai Gakkai ronbunshu, 2023 In this study, we propose a solution to a shape optimization problem for the strength design of porous structures under thermal loading. The homogenization method is used to bridge the macrostructure and the porous microstructures, in which the elastic ...
Mihiro TORISAKI, Masatoshi SHIMODA
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Sparsity prior for electrical impedance tomography with partial data [PDF]
, 2014 This paper focuses on prior information for improved sparsity reconstruction in electrical impedance tomography with partial data, i.e. data measured only on subsets of the boundary.
Garde, Henrik, Knudsen, Kim
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Error analysis of H1 gradient method for topology optimization problems of continua
JSIAM Letters, 2011 The present paper describes the result of the error estimation of a numerical solution to topology optimization problems of domains in which boundary value problems are dened. In the previous paper, we formulated a problem by using density as a design variable, presented a regular solution, and called it the H1 gradient method.
Daisuke Murai, Hideyuki Azegami
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Journal of Gastrointestinal and Abdominal Radiology, 2023 Background and Objectives The purpose of this study is to evaluate and establish the accuracy of noninvasive methods, including third-generation dual-source dual-energy computed tomography (DECT) and proton density fat (PDF) fraction on magnetic ...
S. Rajesh +6 more
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Error analysis of the H1 gradient method for shape-optimization problems of continua
JSIAM Letters, 2013 Summary: We present an error estimation for the H1 gradient method, which provides numerical solutions to the shape-optimization problem of the domain in which a boundary value problem is defined. The main result is that if second-order elements are used for the solutions of the main and adjoint boundary value problems to evaluate the shape derivative,
Murai, Daisuke, Azegami, Hideyuki
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Long-time convergence of an adaptive biasing force method: Variance reduction by Helmholtz projection [PDF]
, 2015 In this paper, we propose an improvement of the adaptive biasing force (ABF) method, by projecting the estimated mean force onto a gradient. The associated stochastic process satisfies a non linear stochastic differential equation.
Alrachid, Houssam, Lelièvre, Tony
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An inexact Newton-Krylov algorithm for constrained diffeomorphic image registration [PDF]
, 2015 We propose numerical algorithms for solving large deformation diffeomorphic image registration problems. We formulate the nonrigid image registration problem as a problem of optimal control.
Biros, George, Mang, Andreas
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Mechanical Engineering Journal, 2022 A class of optimization problems which are formulated using solutions to boundary value problems of partial differential equations (PDEs) as equality constraints is called PDE-constrained optimization problems.
Hideyuki AZEGAMI
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