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Classical Physics papers — page 153

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Modulational instability of coupled nonlinear field equations for pulse propagation in a negative index material embedded into a Kerr medium
We have investigated the modulational instability (MI) in a negative index media (NIM) using a new generalized model describing the pulse propagation in a negative index material embedded into a Kerr…
Amarendra K. Sarma, Manirupa SahaJun 9, 2010
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Self frequency-locking of a chain of oscillators
The paper studies the vibrational modes of a slightly damped uniform chain, with n masses coupled by elastic forces. It will be shown that, for certain lengths of the chain, that is for certain…
S. Giurdanella, A. C. SparavignaJun 9, 2010
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Thermodynamic form of the equation of motion for perfect fluids of grade n
We propose a thermodynamic form of the equation of motion for perfect fluids of grade n which generalizes the one given by J. Serrin in the case of perfectly compressible fluids. First integrals and…
Henri GouinJun 4, 2010
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On the δ-singularities of the electromagnetic field
The singularities of the electromagnetic field are derived to include all the point-like multipoles representing an electric charge and current distribution. We show that for higher orders, it is…
C Vrejoiu, R ZusJun 3, 2010
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Velocity and energy relaxation in two-phase flows
In the present study we investigate analytically the process of velocity and energy relaxation in two-phase flows. We begin our exposition by considering the so-called six equations two-phase model…
Yannick Meyapin, Denys Dutykh, Marguerite GisclonMay 31, 2010
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New theorem of classical electromagnetism: equilibrium magnetic field and current density are zero inside ideal conductors
We prove a theorem on the magnetic energy minimum in a system of perfect, or ideal, conductors. It is analogous to Thomson's theorem on the equilibrium electric field and charge distribution in a…
Miguel C. N. Fiolhais, Hanno Essen, C. Providencia et al.May 30, 2010
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Comments on "On vector potential of the Coulomb gauge"
The instantaneous nature of the potentials of the Coulomb gauge is clarified and a concise derivation is given of the vector potential of the Coulomb gauge expressed in terms of the instantaneous…
A. M. StewartMay 30, 2010
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On cycle-to-cycle heat release variations in a simulated spark ignition heat engine
The cycle-by-cycle variations in heat release for a simulated spark-ignited engine are analyzed within a turbulent combustion model in terms of some basic parameters: the characteristic length of the…
P. L. Curto-Risso, A. Medina, A. Calvo Hernández et al.May 28, 2010
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Relativistic length agony continued
An attempt is made to remedy confusing treatments of some basic relativistic concepts and results in recent papers by Franklin (2010 Eur. J. Phys. 31 291-8) and by McGlynn and van Kampen…
Dragan V RedžićMay 25, 2010
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Finding the Center of Mass of a Soft Spring
This article shows how to use calculus to find the center of mass position of a soft cylindrical helical spring that is suspended vertically. The spring is non-uniformly stretched by the action of…
Juan D. Serna, Amitabh JoshiMay 21, 2010
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Comment on "On the classical analysis of spin-orbit coupling in hydrogenlike atoms," [Am. J. Phys. 78 (4) 428-432, April 2010]
In their recent paper, Kholmetskii, Missevitch, and Yarman "reanalyze the usual classical derivation of spin-orbit coupling in hydrogenlike atoms" and find a result "in qualitative…
David C. LushMay 20, 2010
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Modified Newton's rings: II
In an earlier work (Shankar kumar Jha, A Vyas, O S K S Sastri, Rajkumar Jain & K S Umesh, 'Determination of wavelength of laser light using Modified Newton's rings setup', Physics…
T. Sai Chaitanya, Rajiv kumar, V. Sai Krishna et al.May 20, 2010
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Microscopic expression of the second law of thermodynamics
The microscopic derivation of the second law for macroscopic system is given under the phenomenological assumption that both the initial and final states are described by mutually different canonical…
Takaaki MonnaiMay 19, 2010
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Triangular buckling patterns of twisted inextensible strips
When twisting a strip of paper or acetate under high longitudinal tension, one observes, at some critical load, a buckling of the strip into a regular triangular pattern. Very similar triangular…
A. P. Korte, E. L. Starostin, G. H. M. van der HeijdenMay 18, 2010
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The principle of superposition for waves
In this paper we will argue that the superposition of waves can be calculated and taught in a simple way. We show, using the Gauss's method to sum an arithmetic sequence, how we can construct the…
L. M. Arévalo Aguilar, C. Robledo-Sánchez, M. L. Arroyo Carrasco et al.May 18, 2010
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Nonrelativistic theory of electroscalar field and Maxwell electrodynamics
In this work, a non-relativistic theory of the electroscalar field being an expansion of the classical Maxwell's electrodynamics is presented. Expansion of the classical electrodynamics is based…
D. V. Podgainy, O. A. ZaimidorogaMay 18, 2010
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Plasmonic Cloaking of Cylinders: Finite Length, Oblique Illumination and Cross-Polarization Coupling
Metamaterial cloaking has been proposed and studied in recent years following several interesting approaches. One of them, the scattering-cancellation technique, or plasmonic cloaking, exploits the…
Andrea Alu, David Rainwater, Aaron KerkhoffMay 14, 2010
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Derivation of the Planck Spectrum for Relativistic Classical Scalar Radiation from Thermal Equilibrium in an Accelerating Frame
The Planck spectrum of thermal scalar radiation is derived suggestively within classical physics by the use of an accelerating coordinate frame. The derivation has an analogue in Boltzmann's…
Timothy H. BoyerMay 14, 2010
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Nothing but Relativity, Redux
Here we show how spacetime transformations consistent with the principle of relativity can be derived without an explicit assumption of the constancy of the speed of light, without gedanken…
Joel W. GannettMay 12, 2010
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Analysis and Design of Ultra Thin Electromagnetic Absorbers Comprising Resistively Loaded High Impedance Surfaces
High-Impedance Surfaces (HIS) comprising lossy Frequency Selective Surfaces (FSS) are employed to design thin electromagnetic absorbers. The structure, despite its typical resonant behavior, is able…
Filippo Costa, Agostino Monorchio, Giuliano ManaraMay 10, 2010
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Intrinsic stickiness in open integrable billiards: tiny border effects
Rounding border effects at the escape point of open integrable billiards are analyzed via the escape times statistics and emission angles. The model is the rectangular billiard and the shape of the…
MS Custódio, MW BeimsMay 3, 2010
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A comprehensive classification of complex statistical systems and an ab-initio derivation of their entropy and distribution functions
To characterize strongly interacting statistical systems within a thermodynamical framework - complex systems in particular - it might be necessary to introduce generalized entropies, Sg. A series…
Rudolf Hanel, Stefan ThurnerMay 2, 2010
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Diffraction of Electromagnetic Wave by Circular Disk and Circular Hole
The problem of diffraction of an electromagnetic plane wave by a perfectly conducting circular disk and its complementary problem, diffraction by a circular hole in an infinite conducting plate, are…
Muhammad Adnan ShahzadApr 29, 2010
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Intégration de contraintes cinématiques pour le calcul de l'orientation optimisée de l'axe de l'outil en usinage 5 axes Optimisation of tool axis orientation in 5 axis machining taking into account kinematical constraints
Après avoir détaillé les principales difficultés liées à l'usinage 5 axes UGV, nous présentons un modèle de représentation des trajectoires 5 axes sous forme surfacique permettant de prendre en…
Sylvain Lavernhe, Christophe Tournier, Claire LartigueApr 29, 2010
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Problems in mechanics of particles and bodies
The textbook contains the problems in mechanics and special relativity for physics departments of universities. Many original problems were proposed by active scientists from the institutes of the…
Yu. I. Belchenko, E. A. Gilev, Z. K. SilagadzeApr 26, 2010
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