Applied Mathematical Modelling
Papers 9,959
1 page of 996 pages (9,959 results)
#1Pulkit Kumar (Indian Institutes of Technology)H-Index: 5
#2Moumita Mahanty (Indian Institutes of Technology)H-Index: 5
Last. Amares Chattopadhyay (Indian Institutes of Technology)H-Index: 23
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Abstract null null An analytical study on the propagation characteristics of shear wave in a spherical layered structure comprising of an isotropic sandy material medium covered by a concentric spherical transversely isotropic sandy material layer of finite thickness has been carried out in the present work. The source of excitation for wave propagation is considered in the outer layer and the analytical treatment with contour integration and Fourier-Legendre Expansion theorem is utilized to acc...
#1Yong Zhi Zhao (Tongji University)H-Index: 1
#2Zhi Yong Ai (Tongji University)H-Index: 19
Abstract null null Based on the integral transform theorem and the extended precise integration method (EPIM), this paper investigates the axisymmetric and in-plane transient dynamic responses of multilayered transversely isotropic (TI) poroelastic media. First, the governing equations are transformed into ordinary differential equations by virtue of the integral transform technique. It can be found that the transformed equations of the axisymmetric problem are similar to those of the in-plane p...
#1Rogelio Ortigosa (University of Cartagena)H-Index: 13
#2Jesús Martínez-Frutos (University of Cartagena)H-Index: 9
Last. Francisco Periago (University of Cartagena)H-Index: 11
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Abstract null null This paper presents a novel in-silico framework for the simultaneous optimal control and design of complex magnetic responsive polymer composite materials. State-of-the-art optimisation techniques are used in conjunction with the latest developments in the numerical solution of hard-magnetic soft materials undergoing large (potentially extreme) deformations, in order to address the challenging task of designing shape-morphing two-dimensional composite magnetic sheets. This pap...
#1Liyun Zhu (Agricultural University of Hebei)
#2Feng He (USTB: University of Science and Technology Beijing)
Abstract null null This paper develops a multi-stage Malmquist-luenberger index (MLPI) model by considering the joint production of desirable and undesirable outputs in multiple production processes. The proposed approach not only evaluates the environmental total factor productivity (ETFP) growth of the whole system but also investigate the progress and regress of each sub-process, i.e., the iron-making sub-process and the steel-making sub-process. Driving factors of ETFP change are identified ...
#1Rui Zheng (SEU: Southeast University)
#2Yifan Zhou (SEU: Southeast University)H-Index: 7
Abstract null null This paper proposes a dynamic inspection and replacement policy for a production system composed of two nonidentical units and an inventory system. Unit 1 deteriorates gradually and it is subject to soft failure. Unit 2 experiences hard failures that occur following a general lifetime distribution. The degradation processes of the two units are stochastically interdependent. Condition monitoring is performed to reveal the deterioration state of unit 1 when a certain number of ...
#1Linwei Li (Zhengzhou University of Light Industry)H-Index: 2
#2Huanlong Zhang (Zhengzhou University of Light Industry)H-Index: 2
Last. Xuemei Ren (BIT: Beijing Institute of Technology)H-Index: 28
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Abstract null null In this paper, an adaptive identification scheme is proposed for nonlinear multi-input multi-output systems with colored noise based on a novel parameter update law. With the help of the hierarchical principle, the identification model is decomposed into three sub-models in which the computational burden is reduced. For each sub-model, the identification algorithm is proposed to estimate the sub-model parameters. In the process of the identification algorithm design, consideri...
#1Yang Zheng (WHU: Wuhan University)H-Index: 11
#2Qijuan Chen (WHU: Wuhan University)H-Index: 5
Last. Haiku Zhang (WHU: Wuhan University)H-Index: 1
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Abstract null null Focused on the hydraulic factor-induced ultra-low frequency oscillation phenomenon happened in a large hydropower plant, this paper investigates the precise modelling of hydraulic transient characteristics in its complex tailrace system and reveals the feasible oscillation suppression schemes from the source side. Combining telegraphist's equations with Saint-Venant equations, the mathematical expression of equivalent circuit model (ECM) for open channels is deduced, thus to e...
#1S. Morteza Mousavi (BNUT: Babol Noshirvani University of Technology)H-Index: 3
#2A. Ali Rabienataj Darzi (UMZ: University of Mazandaran)H-Index: 18
Last. Ming Li (Macquarie University)
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Abstract null null Neodymium magnets are the strongest type of permanent magnet commercially available. This investigation aims to numerically study the behavior of ferrofluids in the presence of block neodymium magnets which could be used in a wide range of applications. The problem formulation is derived using the principles of ferrohydrodynamics (FHD) and magnetohydrodynamics (MHD), and the finite volume method is employed for solving the equations. The flow of water-Fe3O4 magnetic nanofluid ...
#1Jin-Ju Wang (UESTC: University of Electronic Science and Technology of China)H-Index: 2
#2Ding-Cheng Wang (UESTC: University of Electronic Science and Technology of China)
Last. Jie Huang (UESTC: University of Electronic Science and Technology of China)H-Index: 10
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Abstract null null Estimating endmembers and corresponding abundances from mixed pixels are essential steps for hyperspectral unmixing. In hyperspectral unmixing, obtaining accurate unmixing results is difficult since less prior knowledge is available. Besides, the unmixing results are influenced by noise and highly correlated endmembers, so that the obtained abundance maps exist small values which are not present in the image. In this paper, we separate each abundance map into a feature layer a...
#1Yajin Zhang (DUT: Dalian University of Technology)H-Index: 2
#2Bo Dong (DUT: Dalian University of Technology)H-Index: 9
Last. Weizhong Li (DUT: Dalian University of Technology)H-Index: 17
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Abstract null null In this paper, a phase-field-based lattice Boltzmann model for ternary fluid flows is proposed, where the conservative Allen-Cahn equation for ternary fluids is employed to track the interface of fluids. A time derivative term is introduced to the LB equation for the conservative Allen-Cahn equation and a forcing distribution function is used to the LB equation for the Navier-Stokes equations. The computational accuracy and capability of this proposed model are verified by ben...
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