Microwave Cherenkov Radiation from a Particle-in-flight to a Semi-infinite Layered MediumSome part of the microwave Cherenkov radiation from a particle-in-flight from vacuum to semi-infinite layered medium is redirected by the periodical structure of medium in the backward direction.…L. Sh. Grigoryan, A. R. Mkrtchyan, H. F. Khachatryan et al.·Apr 17, 2010SaveLearn
Electromagnetism and time-asymmetryIt is a commonplace to note that in a world governed by special or general relativity, an observer has access only to data within her past lightcone (if that). The significance of this for…Steven Weinstein·Apr 8, 2010SaveLearn
Collective Molecular Dynamics of a Floating Water BridgeWhen a high voltage is applied to pure water filling two beakers kept close to each other, a connection forms spontaneously, giving the impression of a floating water bridge. This phenomenon is of…Emilio Del Giudice, Elmar C. Fuchs, Giuseppe Vitiello·Apr 6, 2010SaveLearn
Model coupling friction and adhesion for steel-concrete interfacesThe interface behaviour between steel and concrete, during pull-out tests, is numerically investigated using an interface model coupling adhesion and Coulomb friction. This model, first developed by…Michel Raous, M'hamed Ali Karray·Mar 24, 2010SaveLearn
Point Charge Dynamics Near a Grounded Conducting PlaneThe classic image problem in electromagnetism involves a grounded infinite conducting plane and a point charge. The force of attraction between the point charge and the plane is identified using an…Kevin L. Haglin·Mar 22, 2010SaveLearn
Missing Transverse-Doppler Effect in Time-Dilation Experiments with High-Speed IonsRecent experiments with high-speed ions have investigated potential deviations from the time-dilation predicted by special relativity (SR). The main contribution of this article is to show that the…Santosh Devasia·Mar 15, 2010SaveLearn
Multiple scattering of ultrasound in weakly inhomogeneous media: application to human soft tissuesWaves scattered by a weakly inhomogeneous random medium contain a predominant single scattering contribution as well as a multiple scattering contribution which is usually neglected, especially for…Alexandre Aubry, Arnaud Derode·Mar 9, 2010SaveLearn
The Electrodynamics of Inhomogeneous Rotating Media and the Abraham and Minkowski Tensors II: ApplicationsApplications of the covariant theory of drive-forms are considered for a class of perfectly insulating media. The distinction between the notions of "classical photons" in homogeneous bounded…Shin-itiro Goto, Robin W. Tucker, Timothy J. Walton·Mar 8, 2010SaveLearn
The Electrodynamics of Inhomogeneous Rotating Media and the Abraham and Minkowski Tensors I: General TheoryThis is paper I of a series of two papers, offering a self-contained analysis of the role of electromagnetic stress-energy-momentum tensors in the classical description of continuous polarizable…Shin-itiro Goto, Robin W. Tucker, Timothy J. Walton·Mar 8, 2010SaveLearn
The thermodynamic equilibrium of gas in a box divided by a pistonThe equilibrium conditions of a system consisting of a box with gas divided by a piston are revised. The apparent indetermination of the problem is solved by explicitly imposing the constancy of the…Alberto Herrera-Gomez·Mar 8, 2010SaveLearn
Scaling properties of one-dimensional cluster-cluster aggregation with Levy diffusionWe present a study of the scaling properties of cluster-cluster aggregation with a source of monomers in the stationary state when the spatial transport of particles occurs by Levy flights. We show…Colm Connaughton, Jamie Harris·Mar 5, 2010SaveLearn
Classical Scaling Symmetry Implies Useful Nonconservation LawsScaling symmetries of the Euler-Lagrange equations are generally not variational symmetries of the action and do not lead to conservation laws. Nevertheless, by an extension of Noether's theorem,…Sidney Bludman, Dallas C. Kennedy·Feb 25, 2010SaveLearn
A Study of End-Fed Arrays with Application to Single Driving-Point Self-Standing Linear ArraysThe array factor of a both geometrically and electrically uniform array is the simple formula for the complex geometric progression sum. This fact, although results in the simplest of all possible…Konstantinos Kondylis, Nikolitsa Yannopoulou, Petros Zimourtopoulos·Feb 22, 2010SaveLearn
Pressure-driven flow of a micro-polar fluid: measurement of the velocity profileThe pressure-driven flow of a suspension of spinning particles in a rectangular channel is studied using an acoustic method. The suspension is made of insulating particles (PMMA) dispersed in a…Peters François, Laurent Lobry, Elisabeth Lemaire·Feb 18, 2010SaveLearn
Wake effects characterization using wake oscillator model. Comparison on 2D response with experimentsA model using wake oscillators is developed to predict the 2D motion in a transverse plan of two rigid cylinders in tandem arrangement. This model of the wake dynamics is validated with experimental…Benoît Gaurier, Grégory Germain, David Cébron·Feb 18, 2010SaveLearn
Minimax Current Density Coil Design'Coil design' is an inverse problem in which arrangements of wire are designed to generate a prescribed magnetic field when energized with electric current. The design of gradient and shim…Michael Poole, Pierre Weiss, Hector Sanchez Lopez et al.·Feb 18, 2010SaveLearn
Validation Test Cases for Multi-Physic Problems: Application to Magneto-Hydrodynamic Numerical SimulationsIn the present paper, some elementary test cases in laminar flow with magnetic forcing terms are analyzed (Hartmann flow, Couette flow, Rayleigh flow); equations of the coupled problem are exposed…David Cebron, Jean-François Sigrist, Vincent Soyer et al.·Feb 17, 2010SaveLearn
Practical use of variational principles for modeling water wavesThis paper describes a method for deriving approximate equations for irrotational water waves. The method is based on a 'relaxed' variational principle, i.e., on a Lagrangian involving as…Didier Clamond, Denys Dutykh·Feb 16, 2010SaveLearn
Causality and Peierls Bracket in Classical MechanicsRelation between the Peierls and the Poisson bracket is derived in classical mechanics of time-dependent systems. Equal-time Peierls brackets are seen to be the same as the Poisson brackets in simple…Pankaj Sharan·Feb 16, 2010SaveLearn
The Vibrations Of A Beam With A Local Unilateral Elastic ContactThe mass reduction of satellite solar arrays results in significant panel flexibility. When such structures are launched there is a possible striking at one with another dynamically, leading…H. Hazim, Neil Ferguson, B. Rousselet·Feb 15, 2010SaveLearn
On Equivalent Expressions for the Faraday's Law of InductionIn this paper we give a rigorous proof of the equivalence of some different forms of Faraday's law of induction clarifying some misconceptions on the subject and emphasizing that many derivations…Fabio G. Rodrigues·Feb 14, 2010SaveLearn
Measuring Nanoscale Stress Intensity Factors with an Atomic Force MicroscopeAtomic Force Microscope images of a crack intersecting the free surface of a glass specimen are taken at different stages of subcritical propagation. From the analysis of image pairs, it is shown…Kun Han, Matteo Ciccotti, Stéphane Roux·Feb 9, 2010SaveLearn
On the relevance of the dam break problem in the context of nonlinear shallow water equationsThe classical dam break problem has become the de facto standard in validating the Nonlinear Shallow Water Equations (NSWE) solvers. Moreover, the NSWE are widely used for flooding simulations. While…Denys Dutykh, Dimitrios Mitsotakis·Feb 9, 2010SaveLearn
Sliding rope paradoxA simple mechanical problem is considered which we believe will help students to familiarize some concepts of mechanics of variable mass systems. Meanwhile they can even learn some thrilling physics…Z. K. Silagadze·Feb 8, 2010SaveLearn
Rotating optical cavity experiment testing Lorentz invariance at the 10-17 levelWe present an improved laboratory test of Lorentz invariance in electrodynamics by testing the isotropy of the speed of light. Our measurement compares the resonance frequencies of two orthogonal…S. Herrmann, A. Senger, K. Möhle et al.·Feb 5, 2010SaveLearn