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Superdirective Circular Arrays of Electric and Huygens Dipole Elements: 《Electromagnetic Science》2024年第1期38-62,共25页Richard W.Ziokowski; Uniform circular arrays(UCAs)provide both omnidirectional(360°)and directive(sector)coverage of the azimuthal plane.Superdirective versions with unidirectional,high front-to-back ratio(FTBR)properties could provide t...; 关键词：DIRECTIVITY Huygens dipole antennas MULTIPOLES Needle radiation Optimization Superdirective arrays Uniform circular arrays.

Efficient and accurate numerical-projection of electromagnetic multipoles for scattering objects: 《Frontiers of Optoelectronics》2023年第4期215-226,共12页Wenfei Guo Zizhe Cai Zhongfei Xiong Weijin Chen Yuntian Chen; funded by the National Key Research and Development Program of China(No.2021YFB2800303);Innovation Project of Optics Valley Laboratory,and the National Natural Science Foundation of China(Grant No.61405067).; In this paper,we develop an efcient and accurate procedure of electromagnetic multipole decomposition by using the Lebedev and Gaussian quadrature methods to perform the numerical integration.Firstly,we briefy review ...; 关键词：Multipole decomposition Numerical quadrature Light scattering

Spatial symmetries in nonlocal multipolar metasurfaces被引量：3: 《Advanced Photonics》2023年第4期9-22,共14页Karim Achouri Ville Tiukuvaara Olivier J.F.Martin; We gratefully acknowledge funding from the Swiss National Science Foundation(Grant No.PZ00P2-193221).; We propose a framework that connects the spatial symmetries of a metasurface to its material parameter tensors and its scattering matrix.This provides a simple and universal way to effortlessly determine the propertie...; 关键词：spatial symmetries METAMATERIALS bianisotropy MULTIPOLES CHIRALITY

Scattering of water waves by a wave energy device consisting of a pair of co-axial cylinders in a uniform water having finite channel width被引量：1: 《Journal of Ocean Engineering and Science》2021年第3期276-284,共9页P.Borah M.Hassan; the Department of Science and Technol-ogy,SERB,[grant number:SERB(YSS/14/000884)]。; We consider a device which consists of a floating structure over a cylindrical plate placed at a finite height from the impermeable ocean floor.This paper developes the interaction of linear water waves with such a de...; 关键词：Water waves Exciting force Channel multipoles Channel width Wavenumber 2000 MSC 76B07 76B15.

Molecular multipoles and (hyper) polarizabilities from the Buckingham expansion:revisited: 《Communications in Theoretical Physics》2020年第7期81-98,共18页Houxian Chen Menglin Liu Tianying Yan; the National Natural Science Foundation of China(Grant Nos.21573112 and 21421001)。; The Buckingham expansion is important for understanding molecular multipoles and(hyper)polarizabilities.In this study,we give a complete derivation of the Buckingham expansion in the traced form using successive Taylo...; 关键词：Buckingham expansion MULTIPOLE (hyper)polarizability finite field method ab initio calculations

Harmonic Polynomials Via Differentiation: 《Analysis in Theory and Applications》2018年第4期336-347,共12页Ricardo Estrada; It is well-known that if p is a homogeneous polynomial of degree k in n variables, p ∈ P;, then the ordinary derivative p（）(r;) has the form A;Y（x）r;where A;is a constant and where Y is a harmonic homogeneous pol...; 关键词：Harmonic functions harmonic polynomials DISTRIBUTIONS MULTIPOLES

Trapped Modes in a Three-Layer Fluid: 《Journal of Marine Science and Application》2018年第1期45-56,共12页Sunanda Saha Swaroop Nandan Bora; In this work,trapped mode frequencies are computed for a submerged horizontal circular cylinder with the hydrodynamic set-up involving an infinite depth three-layer incompressible fluid with layer-wise different densi...; 关键词：Trappedmode Three-layer FLUID CUT-OFF VALUE MULTIPOLES Pycnoclines

Construction of Wave-free Potentials and Multipoles in a Two-layer Fluid Having Free-surface Boundary Condition with Higher-order Derivatives被引量：1: 《Journal of Marine Science and Application》2015年第3期270-282,共13页Dilip Das; There is a large class of problems in the field of fluid structure interaction where higher-order boundary conditions arise for a second-order partial differential equation. Various methods are being used to tackle th...; 关键词：two-layer fluid wave-free potentials Laplace’s equation modified Helmholtz equations higher order boundary conditions MULTIPOLES

Numerical analysis of interaction between solute atom and extended dislocation using force multipoles: 《Journal of Central South University》2014年第8期3000-3006,共7页Hiroaki Morita Akiyuki Takahashi; The interaction between a solute atom and an extended dislocation was investigated using a continuum approximation method with force multipoles.The dislocation core structure of extended dislocation was modeled with t...; 关键词：solution hardening force multipole solute atom extended dislocation Peierls-Nabarro model

Mitigating the effects of higher order multipole fields in the magnets of the Accelerator Test Facility 2 at KEK: 《Chinese Physics C》2012年第8期756-760,共5页白莎 P. Bambade 王逗高杰 M. Woodley M. Masuzawa; Supported by Agence Nationale de la Recherche of the French Ministry of Research(Programme Blanc,Project ATF2-IN2P3-KEK,contract,ANR-06-BLAN-0027);National Natural Science Foundation of China(11175192);support in part by the USDepartment of Energy(DE-AC02-76SF00515); The ATF2 project is the final focus system prototype for the ILC and CLIC linear collider projects, with the purpose of reaching a 37nm vertical beam size at the interaction point. In the nanometer beam size regime, h...; 关键词：ATF2 beam size higher order multipoles QEA magnets

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