Trajectory eigenmodes of an orbiting wave sourceResonances usually result from wave superpositions in cavities where they are due to the wave spatio-temporal folding imposed by the boundaries. These energy accumulations are the signature of the…Emmanuel Fort, Yves Couder·Jul 23, 2013SaveLearn
Analytical quantitative description of wide plate U-free bend process of intelligent controlAccording to flexure theory of plate, on the premise of plane deformation assumption, an analytic model of U-free bend theory is proposed in this paper, which considered the harden, anisotropy and…Chun-jian Su, Wei-wei Wang, Su-min Guo·Jul 23, 2013SaveLearn
Some special solutions to the Hyperbolic NLS equationThe Hyperbolic Nonlinear Schrodinger equation (HypNLS) arises as a model for the dynamics of three-dimensional narrowband deep water gravity waves. In this study, the Petviashvili method is exploited…Laurent Vuillon, Denys Dutykh, Francesco Fedele·Jul 21, 2013SaveLearn
Exact 3D solution for static and damped harmonic response of simply supported general laminatesThe state-space method is adapted to obtain three dimensional exact solutions for the static and damped dynamic behaviors of simply supported general laminates. The state-space method is written in a…Alexandre Loredo·Jul 19, 2013SaveLearn
The fields and self-force of a constantly accelerating spherical shellWe present a partial differential equation describing the electromagnetic potentials around a charge distribution undergoing rigid motion at constant proper acceleration, and obtain a set of…Andrew M. Steane·Jul 18, 2013SaveLearn
Acoustic radiation force and torque on an absorbing compressible particle in an inviscid fluidExact formulas of the acoustic radiation force and torque exerted by an arbitrary time-harmonic wave on an absorbing compressible particle that is suspended in an inviscid fluid are presented. It is…Glauber T. Silva·Jul 17, 2013SaveLearn
In-out decomposition of boundary integral equationsWe propose a reformulation of the boundary integral equations for the Helmholtz equation in a domain in terms of incoming and outgoing boundary waves. We obtain transfer operator descriptions which…Stephen C Creagh, Hanya Ben Hamdin, Gregor Tanner·Jul 15, 2013SaveLearn
Impact of a body against a rigid wall. Problem involving non-smooth and history dependent energy dissipation mechanismWe study the impact of a body against a rigid wall. The body consists of a rigid block and a viscoelastic rod described by the fractional Zener model. Translatory motion of a body is influenced by…Dusan Zorica, Miodrag Zigic, Nenad Grahovac·Jul 12, 2013SaveLearn
Transformation Electromagnetics Devices Based on Printed-Circuit Tensor Impedance SurfacesA method for designing transformation electromagnetics devices using tensor impedance surfaces (TISs) is presented. The method is first applied to idealized tensor impedance boundary conditions…Amit M. Patel, Anthony Grbic·Jul 12, 2013SaveLearn
Array Antenna LimitationsThis letter defines a physical bound based array figure of merit that provides a tool to compare the performance of both single and multi-band array antennas with respect to return-loss, thickness of…B. L. G. Jonsson, C. I. Kolitsidas, N. Hussain·Jul 10, 2013SaveLearn
Photon in a cavity -- a GedankenexperimentThe inertial and gravitational mass of electromagnetic radiation (i.e., a photon distribution) in a cavity with reflecting walls has been treated by many authors for over a century. After many…Klaus Wilhelm, Bhola N. Dwivedi·Jul 9, 2013SaveLearn
Electromagnetic and Potential Scattering from a Radially Inhomogeneous SphereAspects of of plane wave electromagnetic scattering by a radially inhomogeneous sphere is discussed. The vector problem is reduced to two scalar radial `Schrödinger-like' equations, and a…John A. Adam, Umaporn Nuntaplook·Jul 5, 2013SaveLearn
Circular Polarization of Periodic Leaky-Wave Antennas with Axial Asymmetry: Theoretical Proof and Experimental DemonstrationThe paper includes two contributions. First, it proves that the series and shunt radiation components, corresponding to longitudinal and transversal electric fields, respectively, are always in phase…Simon Otto, Zhichao Chen, Amar Al-Bassam et al.·Jun 30, 2013SaveLearn
Using symmetry to generate solutions to the Helmholtz equation inside an equilateral triangleWe prove that every solution of the Helmholtz equation within an equilateral triangle, which obeys the Dirichlet conditions on the boundary, is a member of one of four symmetry classes. We then show…Nathaniel Stambaugh, Mark Semon·Jun 29, 2013SaveLearn
Comparison of fractional wave equations for power law attenuation in ultrasound and elastographyA set of wave equations with fractional loss operators in time and space are analyzed. It is shown that the fractional Szabo equation, the power law wave equation, and the fractional Laplacian wave…Sverre Holm, Sven Peter Näsholm·Jun 27, 2013SaveLearn
How can one detect the rotation of the Earth "around the Moon"? Part 3. With a simple pendulumThe attraction of the Moon on objects at the surface of the Earth gives rise to a so-called tidal force which is of the order of 1/10,000,000 times the gravitational force of the Earth. For instance,…Marcel Betrisey, Bertrand M. Roehner·Jun 21, 2013SaveLearn
Hertz Beyond BeliefWe examine the validity of Hertz's linear elastic theory for central collisions using a viscoelastic model. This model explains why Hertz's theory is accurate in predicting the collision time…Andong He, John S. Wettlaufer·Jun 20, 2013SaveLearn
The distribution of the electric current in a watt-balance coilIn the watt balance experiments, separate measurements of the magnetic and electromotive forces in a coil in a magnetic field enable a virtual comparison between mechanical and electric powers to be…Carlo Paolo Sasso, Enrico Massa, Giovanni Mana·Jun 20, 2013SaveLearn
Radar Cross Section of Moving ObjectsI investigate the effects of movement on radar cross section calculations. The results show that relativistic effects (the constant velocity case) can change the RCS of moving targets by changing the…H. Gholizade·Jun 19, 2013SaveLearn
Rotor Bearing System Analysis Using the Transfer Matrix Method with Thickness Assumption of Disk and BearingOne of the methods to find the natural frequencies of rotating systems is the application of the transfer matrix method. In this method the rotor is modeled as several elements along the shaft which…Omid Ghasemalizadeh, Mohammad Reza Mirzaee, Hossein Sadeghi et al.·Jun 19, 2013SaveLearn
Interrelations between different canonical descriptions of dissipative systemsThere are many approaches for the description of dissipative systems coupled to some kind of environment. This environment can be described in different ways; only effective models will be considered…Dieter Schuch, Julio Guerrero, Francisco F. López-Ruiz et al.·Jun 18, 2013SaveLearn
On Irreversibility and Radiation in Classical Electrodynamics of Point ParticlesThe direct interaction theory of electromagnetism, also known as Wheeler-Feynman electrodynamics, is often misinterpreted and found unappealing because of its reference to the absorber and, more…G. Bauer, D. -A. Deckert, Detlef Dürr et al.·Jun 17, 2013SaveLearn
Analytic physical model of anisotropic anomalous diffusionThe temporal Fokker-Planck equation is analytically integrated in an arbitrary number of spatial dimensions but with the 2D and 3D results highlighted. It is shown that a temporal power-law ansatz…Billy D. Jones·Jun 12, 2013SaveLearn
Alternate islands of multiple isochronous chains in wave-particle interactionsWe analyze the dynamics of a relativistic particle moving in a uniform magnetic field and perturbed by a standing electrostatic wave. We show that a pulsed wave produces an infinite number of…M. C. de Sousa, I. L. Caldas, A. M. Ozorio de Almeida et al.·Jun 12, 2013SaveLearn
Whirling skirts and rotating conesSteady, dihedrally symmetric patterns with sharp peaks may be observed on a spinning skirt, lagging behind the material flow of the fabric. These qualitative features are captured with a minimal…Jemal Guven, J A Hanna, Martin Michael Müller·Jun 11, 2013SaveLearn