Results 91 to 100 of about 1,686,769 (280)
Archives of AcousticsAnechoic tiles can significantly reduce the echo intensity of underwater vehicles, thereby increasing the difficulty of detecting such vehicles. However, the computational efficiency of conventional methods such as the finite element method (FEM) and the
Fan YANG +4 more
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International Journal of Antennas and Propagation, 2017 An efficient iterative analytical-numerical method is proposed for three-dimensional (3D) electromagnetic scattering from an inhomogeneous object buried beneath a two-dimensional (2D) randomly dielectric rough surface.
Hong-jie He, Li-xin Guo, Wei Liu
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Approximation Error Bounds via Rademacher's Complexity [PDF]
, 2008 Approximation properties of some connectionistic models, commonly used to construct approximation schemes for optimization problems with multivariable functions as admissible solutions, are investigated.
Gnecco, Giorgio, Sanguineti, Marcello
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Steady‐State and Dynamic Behavior of Geometry‐Tunable Microfluidic Passive Flow Regulators
Small, EarlyView.Passive microfluidic flow regulators exhibit geometry‐dependent dynamic behavior, where channel width governs the resistance–compliance interactions within the system. Narrow channels produce faster responses with higher bandwidth, while wider channels yield slower responses and stronger attenuation.
Huy Hoang Vu +4 more
wiley +1 more source
Normalized ground states for a kind of Choquard–Kirchhoff equations with critical nonlinearities
Boundary Value ProblemsIn this paper, we consider the existence of a normalized ground-state solution for the Choquard–Kirchhoff equation: { − ( a + b ∫ R 3 | ∇ u | 2 d x ) Δ u = λ u + μ ( I α ∗ | u | p ) | u | p − 2 u + ω | u | 4 u , in R 3 , u > 0 , ∫ R 3 | u | 2 = m 2 , in ...
Jiayi Fei, Qiongfen Zhang
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Nonlinear oscillations of a viscoelastic cylindrical panel with concentrated masses
MATEC Web of Conferences, 2018 The problems of oscillations of a viscoelastic cylindrical panel with concentrated masses are investigated, based on the Kirchhoff-Love hypothesis in the geometrically nonlinear statement.
Khodzhaev D.A Dadakhan +2 more
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The method of approximate calculation of the Kirchhoff’s integral
Journal of Radio ElectronicsThe article proposes a method of approximate calculation of the wave field gradient by its distribution on the only one closed surface. This allows calculating the Kirchhoff's integral without additional calculations or measurements of the electromagnetic field and opens up the opportunity to use it in practice along with the field equivalence ...
openaire +1 more source
Modelamentos de Kirchhoff/Born para propagação de ondas [PDF]
, 2018 Orientadores: Martin Tygel, Lucio Tunes dos SantosTese (doutorado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação CientificaResumo: Para descrever o campo de onda refletido de um único refletor (alvo) em um meio ...
Schleicher, Maria Amélia Novais, 1967-
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High Voltage, EarlyView.ABSTRACT Radiative cooling holds potential for outdoor transformers in operation due to its zero‐energy consumption and high adaptability and has demonstrated effective heat dissipation in simulations of small distribution transformers. Accurate calculation of the transformer temperature rise and the radiative cooling effect is crucial for practical ...
Guoqiang Gao +7 more
wiley +1 more source
ANALYTIC-NUMERICAL MODEL OF A CONVECTIVE BOUNDARY LAYER AND HEAT TRANSFER ON A HORIZONTAL CONE
TASK Quarterly, 2009 An approximate analytical solution of a two dimensional problem for stationary NavierStokes, continuity and Fourier-Kirchhoff equations describing a free convective heat transfer from an isothermal cone is presented.
SERGEY LEBLE, WERONIKA PELC
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