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Classical Physics papers — page 129

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A linear nonequilibrium thermodynamics approach to optimization of thermoelectric devices
Improvement of thermoelectric systems in terms of performance and range of applications relies on progress in materials science and optimization of device operation. In this chapter, we focuse on…
H. Ouerdane, C. Goupil, Y. Apertet et al.Aug 30, 2013
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Static magnetic field concentration and enhancement using magnetic materials with positive permeability
In this paper a novel compressor for static magnetic fields is proposed based on finite embedded transformation optics. When the DC magnetic field passes through the designed device, the magnetic…
F. Sun, S. HeAug 28, 2013
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Classical scattering of charged particles confined on an inhomogeneous helix
We explore the effects arising due to the coupling of the center of mass and relative motion of two charged particles confined on an inhomogeneous helix with a locally modified radius. It is first…
A. V. Zampetaki, J. Stockhofe, S. Krönke et al.Aug 27, 2013
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Radial Forcing and Edgar Allan Poe's Lengthening Pendulum
Inspired by Edgar Allan Poe's The Pit and the Pendulum, we investigate a radially driven, lengthening pendulum. We first show that increasing the length of an undriven pendulum at a uniform rate…
Matthew McMillan, David Blasing, Heather M. WhitneyAug 26, 2013
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Modélisation micromagnétique du comportement magnéto-mécanique
A magneto-mechanical static modeling of ferromagnetic particle based on minimization of an energy function is presented. This modeling is made of a conjugate gradient method coupled with finite…
Frederick Mballa Mballa, Olivier Hubert, Song He et al.Aug 26, 2013
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A way to discover Maxwell's equations theoretically
The Coulomb force, established in the rest frame of a source-charge Q, when transformed to a new frame moving with a velocity V has a form F= qE + qv × B,…
Krzysztof RębilasAug 23, 2013
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The torque on a dipole in uniform motion
We calculate the torque on an ideal (point) dipole moving with constant velocity through uniform electric and magnetic fields.
David J. Griffiths, V. HnizdoAug 21, 2013
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The genesis of the internal resistance of a battery -- a physical perspective
The standard exposition of the internal resistance of a battery, that a battery comprises a source of emf in series with an internal resistance, as given in engineering and physics text-books, is…
Ashok K. SingalAug 21, 2013
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The Paradox of Two Charged Capacitors -- A New Perspective
It is shown that the famous paradox of two charged capacitors is successfully resolved if all the energy changes in the system are properly considered when some of the charges are transferred from…
Ashok K. SingalAug 21, 2013
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Equations of motion of a relativistic charged particle with a curvature depending actions
We present an introduction to the study of a relativistic particle moving under the influence of its own Frenet-Serret curvatures. With the aim of introducing the notation and conventions used in…
Guillermo Arreaga-Garcia, Julio Saucedo MoralesAug 20, 2013
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Brittle fracture in a periodic structure with internal potential energy. Quasi-static analysis
We consider a linearly elastic body consisting of two equal symmetrically arranged layers (or half-planes) connected by a structured interface as a prospective crack path. The interface is comprised…
Gennady S. Mishuris, Leonid I. SlepyanAug 20, 2013
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Coupled mode parametric resonance in a vibrating screen model
We consider a simple dynamic model of the vibrating screen operating in the parametric resonance (PR) mode. This model was used in the course of designing and setting of such a screen in LPMC. The…
Leonid I. Slepyan, Victor I. SlepyanAug 20, 2013
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Structure and properties of linear sampling method for perfectly conducting, arc-like cracks
We consider the imaging of arbitrary shaped, arc-like perfectly conducting cracks located in the two-dimensional homogeneous space via linear sampling method. Based on the structure of eigenvectors…
Won-Kwang ParkAug 19, 2013
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One-step iterative reconstruction of conductivity inclusion via the concept of topological derivative
We consider an inverse problem of location identification of small conductivity inhomogeneity inside a conductor via boundary measurements which occurs in the EIT (Electrical Impedance Tomography).…
Won-Kwang ParkAug 19, 2013
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Sull'origine della condizione di quantizzazione delle cariche dei dioni
It is shown that there is a simple way to get the quantization equation for the electric and magnetic charges of dyons, eigj-giej=m( c), which also shed light to the origin of such…
F. CarusoAug 15, 2013
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Sensitivity studies of heat transfer: forced convection across a cylindrical pipe and duct flow
We consider two common heat transfer processes and perform a through sensitivity study of the variables involved. We derive and discuss analytical formulas for the heat transfer coefficient in…
Andrea Ferrantelli, Paul Melóis, Martti ViljanenAug 13, 2013
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Numerical study of the generalised Klein-Gordon equations
In this study, we discuss an approximate set of equations describing water wave propagating in deep water. These generalized Klein-Gordon (gKG) equations possess a variational formulation, as well as…
Denys Dutykh, Marx Chhay, Didier ClamondAug 12, 2013
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Analysis of reinforced concrete shells with transverse shear forces
This research investigates the simultaneous effect of in-plane and transverse loads in reinforced concrete shells. The infinitesimal shell element is divided into layers (with triaxial behavior) that…
Mauro Schulz, Maria Paola Santisi D'AvilaAug 10, 2013
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What is a Singularity in Geometrized Newtonian Gravitation?
I discuss singular spacetimes in the context of the geometrized formulation of Newtonian gravitation. I argue first that geodesic incompleteness is a natural criterion for when a model of geometrized…
James Owen WeatherallAug 8, 2013
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Spectral approach to the inverse problem for the field of arbitrary changing electric dipole
The inverse problem for electromagnetic field produced by arbitrary altered charge distribution in dipole approximation is solved. The charge distribution is represented by its dipole moment. It is…
V. Epp, J. G. JanzAug 7, 2013
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The Gravity Tunnel in a Non-Uniform Earth
How long does it take to fall down a tunnel through the center of the Earth to the other side? Assuming a uniformly dense Earth, it would take 42 minutes, but this assumption has not been validated.…
Alexander R. KlotzAug 6, 2013
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Generalized integral formulation of electromagnetic Cartesian multipole moments
We study integral expressions of electromagnetic multipole moments of arbitrary order in Cartesian coordinates. The volume and surface integrals of charge-induced and current-induced multipole moment…
J. NiitsumaJul 29, 2013
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Towards Fractional Gradient Elasticity
An extension of gradient elasticity through the inclusion of spatial derivatives of fractional order to describe power-law type of non-locality is discussed. Two phenomenological possibilities are…
Vasily E. Tarasov, Elias C. AifantisJul 26, 2013
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Shock Waves in Falling Coupled Harmonic Oscillators
Shock waves propagate in falling coupled harmonic oscillators. The bottom end of coupled harmonic oscillators does not fall downwards until a shock wave reaches the bottom end. The exact solution can…
Hidetsugu SakaguchiJul 25, 2013
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An Analytical Prediction of the Bifurcation Scheme of a Clarinet-Like Instrument: Effects of Resonator Losses
The understanding of the relationship between excitation parameters andoscillation regimes is a classical topic concerning bowed stringinstruments. The paper aims to study the case of reed woodwinds…
Pierre-André Taillard, Jean KergomardJul 24, 2013
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