Axial acoustic radiation force on rigid oblate and prolate spheroids in Bessel vortex beams of progressive, standing and quasi-standing wavesThe analysis using the partial-wave series expansion (PWSE) method in spherical coordinates is extended to evaluate the acoustic radiation force experienced by rigid oblate and prolate spheroids…F. G. Mitri·Jun 23, 2016SaveLearn
Making sound vortices by metasurfacesBased on the Huygens-Fresnel principle, a metasurface structure is designed to generate a sound vortex beam in airborne environment. The metasurface is constructed by a thin planar plate perforated…Liping Ye, Chunyin Qiu, Jiuyang Lu et al.·Jun 16, 2016SaveLearn
Highly efficient isolation of waterborne sound by an air-sealed metasurfaceUnderwater sound isolation has been a long-standing fundamental issue in industry and military fields. Starting from a simple theoretical model, here an air-sealed metasurface is proposed to overcome…Xiaoxue Bai, Chunyin Qiu, Xinhua Wen et al.·Jun 16, 2016SaveLearn
Modal analysis of the scattering coefficients of an open cavity in a waveguideThe characteristics of an acoustic scatterer are often described by scattering coefficients. The understanding of the mechanisms involved in the frequency dependent features of the coefficients has…Yuhui Tong, Jie Pan·Jun 15, 2016SaveLearn
Generalized Soft-and-Hard/DB BoundaryA novel class of boundary conditions is introduced as a generalization of the previously defined class of soft-and-hard/DB (SHDB) boundary conditions. It is shown that the conditions for the…Ismo V. Lindell, Ari Sihvola·Jun 15, 2016SaveLearn
Phaseless computational imaging with a radiating metasurfaceComputational imaging modalities support a simplification of the active architectures required in an imaging system and these approaches have been validated across the electromagnetic spectrum.…Thomas Fromenteze, Xiaojun Liu, Michael Boyarsky et al.·Jun 15, 2016SaveLearn
Analysis and design of nonlinear resonances via singularity theoryBifurcation theory and continuation methods are well-established tools for the analysis of nonlinear mechanical systems subject to periodic forcing. We illustrate the added value and the…G. I. Cirillo, G. Habib, G. Kerschen et al.·Jun 13, 2016SaveLearn
Does the velocity of light depend on the source movement?Data from spacecrafts tracking exhibit many anomalies that suggest the dependence of the speed of electromagnetic radiation with the motion of its source. This dependence is different from that…Luis Bilbao·Jun 10, 2016SaveLearn
Intensity-only measurement of partially uncontrollable transmission matrix: demonstration with wave-field shaping in a microwave cavityTransmission matrices (TMs) have become a powerful and widely used tool to describe and control wave propagation in complex media. In certain scenarios the TM is partially uncontrollable,…Philipp del Hougne, Boshra Rajaei, Laurent Daudet et al.·Jun 7, 2016SaveLearn
An asymptotically exact theory of smart sandwich shellsAn asymptotically exact two-dimensional theory of elastic-piezoceramic sandwich shells is derived by the variational-asymptotic method. The error estimation of the constructed theory is given in the…Khanh Chau Le, Jeong-Hun Yi·Jun 3, 2016SaveLearn
A principle of similarity for nonlinear vibration absorbersThis paper develops a principle of similarity for the design of a nonlinear absorber, the nonlinear tuned vibration absorber (NLTVA), attached to a nonlinear primary system. Specifically, for…Giuseppe Habib, Gaetan Kerschen·Jun 3, 2016SaveLearn
Longitudinal electromagnetic waves in the framework of standard classical electrodynamicsTheoretical comment for the registration of longitudinal electric waves in interacting laser beams is given. Recent information on longitudinal electric and scalar waves in plasma, plasmons,…V. M. Simulik·Jun 2, 2016SaveLearn
Micro-Doppler Frequency Comb Generation by Axially Rotating ScatterersElectromagnetic scattering in accelerating reference frames inspires a variety of phenomena, requiring employment of general relativity for their description. While the quasi-stationary field…Vitali Kozlov, Dmitrii Filonov, Yefim Yankelevich et al.·Jun 2, 2016SaveLearn
Mixer-Duplexer-Antenna Leaky-Wave System Based on Periodic Space-Time ModulationWe present a mixer-duplexer-antenna leaky-wave system based on periodic space-time modulation. This system operates as a full transceiver, where the upconversion and downconversion mixing operations…Sajjad Taravati, Christophe Caloz·Jun 1, 2016SaveLearn
Relativistic mechanical-thermodynamical formalism -- description of inelastic collisionsWe present a relativistic formalism inspired on the Minkowski four-vectors that also includes conservation laws such as the first law of thermodynamics. It remains close to the relativistic…Julio Guemez, Manuel Fiolhais, Luis A. Fernandez·Jun 1, 2016SaveLearn
Dissipation effects in mechanics and thermodynamicsWith the discussion of three examples, we aim at clarifying the concept of energy transfer associated with dissipation in mechanics and in thermodynamics. The dissipation effects due to dissipative…Julio Guemez, Manuel Fiolhais·Jun 1, 2016SaveLearn
Plane Pendulum and Beyond by Phase Space GeometryThe small angle approximation often fails to explain experimental data, does not even predict if a plane pendulum's period increases or decreases with increasing amplitude. We make a perturbation…Bradley Klee·May 30, 2016SaveLearn
The Application of Mutual Energy Theorem in Expansion of Radiation Field in Spherical WavesIn recent years the shperical wave expansion method has been widely applied to the theory and calculation of electromagnetic fields. But the inner product exist in reference[1] is defined on the…Shuang-Ren Zhao·May 29, 2016SaveLearn
Extremely high Q-factor toroidal metamaterialsWe demonstrate that, owing to the unique topology of the toroidal dipolar mode, its electric/magnetic field can be spatially confined within subwavelength, externally accessible regions of the…Alexey A. Basharin, Vitaliy Chuguevskiy, Nikita Volsky et al.·May 29, 2016SaveLearn
An analytical study of mismatched complementary mediaComplementary media (CM) interacting with arbitrarily situated obstacles are usually less discussed. In this paper, an analytical framework based on multiple scattering theory is established for…Lin Zhu, Xudong Luo, Hongru Ma·May 26, 2016SaveLearn
Are Maxwell's equations Lorentz-covariant?The statement that Maxwell's electrodynamics in vacuum is already covariant under Lorentz transformations is commonplace in the literature. We analyse the actual meaning of that statement and…D V Redzic·May 17, 2016SaveLearn
Dielectric Enhancement from Non-Insulating Particles with Ideally Polarized Interfaces and Zero ζ-Potential I: Exact SolutionWe solve exactly the dielectric response of a non-insulating sphere of radius a suspended in symmetric, univalent electrolyte solution, with ideally-polarizable interface but without significant…Jiang Qian, Pabitra N. Sen·May 17, 2016SaveLearn
Non-Hermitian acoustic metamaterial for the complete control of sound by accessing the exceptional pointsNon-Hermitian systems always play a negative role in wave manipulations due to inherent non-conservation of energy as well as loss of information. Recently, however, there has been a paradigm shift…Yi-Fan Zhu, Xue-Feng Zhu, Xu-Dong Fan et al.·May 16, 2016SaveLearn
A general realistic treatment of the disk paradoxMechanical angular momentum is not conserved in systems involving electromagnetic fields with non-zero electromagnetic field angular momentum. Conservation is restored only if the total (mechanical…George Pantazis, Leandros Perivolaropoulos·May 14, 2016SaveLearn
An inequality for longitudinal and transverse wave attenuation coefficientsTotal absorption, defined as the net flux of energy out of a bounded region averaged over one cycle for time harmonic motion, must be non-negative when there are no sources of energy within the…Andrew N. Norris·May 11, 2016SaveLearn