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На этой странице приведены все страницы сервера ,которые мы индексируем. Показаны документы 1241 - 1260 из 2727011.

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1241. Abstract
... This results in effective generation of spin-response signal, produced by encountering ME-waves nonlinear interaction. All previous experiments were conducted on single-crystal ferrites. ... The resulting 60-MHz spin response signal was received using a coil wrapped around the specimens and measured as function of external magnetic field H. The experiments show that the width of this signal line (in respect to H) linearly increases as the function of porosity. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearInteractionofMagnetoelasticWavesinPorousFerrites.htm -- 7.0 Кб -- 10.07.2002
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1242. Abstract
... Nonlinear Interaction of Two Codirectional Surface SH Waves on a Layered Elastic Half Space . ... In this work the effect of nonlinearity on the interaction of two codirectional quasiharmonic surface SH (Shear Horizontal) waves propagating on a layered half space is examined. ... It is found that the first order slowly varying amplitudes of the interacting waves are governed by two coupled NLS (Nonlinear Schrodinger) equations. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearInteractionofTwoCodirectionalSurfaceSHWavesonaLayeredElasticHalfSpace.htm -- 6.9 Кб -- 10.07.2002
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1243. Abstract
... Nonlinear Ion Acoustic Waves in a Magnetic Plasma . ... These waves are described   by well known and sufficiently complicated nonlinear system of the three equations for the three desired function - the ions flow velocity, the electron (ion) density and the electrical field potential. ... As a result we find for all three desired functions quasi-monochromatic wave motions with a   general phase. In the frame of these motions explicit approximate formulae for all desired functions are constructed. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearIonAcousticWavesinaMagneticPlasma.htm -- 7.0 Кб -- 10.07.2002
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1244. Abstract
... Nonlinear Magneto-Acoustic Phenomena Near Spin-Reorientation Instability . V.Preobrazhensky (Wave Research Center of Prokhorov General Physics Institute RAS and Institut d'Electronique et de Micro-Electronique du Nord (IEMN-DOAE-UMR CNRS 8520)-Ecole Centrale de Lille, Lille, France); P.Pernod (Institut d'Electronique et de Micro-Electronique du Nord (IEMN-DOAE-UMR CNRS 8520), Ecole Centrale de Lille, Villeneuve d'Ascq, France) . ... Journ. Magn. ... 173(1998); 185. 127(1998). ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearMagnetoAcousticPhenomenaNearSpinReorientationInstability.htm -- 7.6 Кб -- 10.07.2002
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1245. Abstract
... Nonlinear Magnetoacoustics of Rare-Earth Orthoferrites . B.Zon, D.L.Dorofeev, A.A.Krivchenkova, G.V.Pakhomov (Physical Department, Voronezh State University, Voronezh, Russia) . ... Nonlinear acoustic effects in the crystals of rare-earth orthoferrites are investigated. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearMagnetoacousticsofRareEarthOrthoferrites.htm -- 6.3 Кб -- 10.07.2002
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1246. Abstract (Invited)
... Nonlinear Models of Waves in Granulated Partially Wet Media . ... The effect discovered recently means that relatively weak waves of low frequency can change stability of small drops in flows through porous space. ... The simplest explanation is connected with solid friction at the grain contacts and crack edges emitting high frequency waves at any deformation of the material matrix. ... Their roles and effects are changing with gas saturation and depend also on the form of gas presence. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearModelsofWavesinGranulatedPartiallyWetMedia.htm -- 7.5 Кб -- 10.07.2002
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1247. Abstract
... Nonlinear Modulation of Rayleigh Waves in a Layered Elastic Half Space . ... In this work the propagation of small but finite amplitude Rayleigh waves in an elastic half-space covered by a different elastic layer of uniform and finite thickness is considered. ... Then the nonlinear self modulation of a group of Rayleigh waves centered around a wave number and a frequency is considered. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearModulationofRayleighWavesinaLayeredElasticHalfSpace.htm -- 6.9 Кб -- 10.07.2002
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1248. Abstract (Invited)
... Nonlinear Phenomena in Bubbly Liquids . ... In particular in a result of experimental studies of intensity dynamics of laser beam scattering the idea about two-phase state of real liq-uids was formulated. Using the conservation laws of gas dynamics and assumption that nonline-arity of processes is mainly determined by the bubble dynamics the two-phase mathematical model for average pressure and volumetric concentration of gas phase was suggested. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearPhenomenainBubblyLiquids.htm -- 7.9 Кб -- 10.07.2002
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1249. Abstract
... Nonlinear Propagation of Two-Component Waves . ... Steady-state solutions in the form of coupled kinks were found and investigated. ... It was shown, that stationary amplitudes of coupled kinks can be not monotone increasing functions. ... The domains of coupled kinks were found. ... The dynamics of coupled shock waves formation under input harmonic perturbation has been discussed. ... The period bisection was observed with coupled waves excitation by input second component. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearPropagationofTwoComponentWaves.htm -- 6.7 Кб -- 10.07.2002
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1250. Abstract
... Nonlinear Properties of Damaged Objects: Application to Crack Detection . ... Nonlinear properties have been experimentally evaluated for a number of thick glass plates being damaged by a thermal shock. ... More damage leads to higher nonlinearity. Nonlinearity of strongly damaged plates increased by the factor 300 compared to the intact ones. High nonlinearity in cracked samples has been confirmed by a strong manifestation of frequency-up and frequency-down conversion phenomena. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearPropertiesofDamagedObjectsApplicationtoCrackDetection.htm -- 6.7 Кб -- 10.07.2002
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1251. Abstract (Invited)
... Nonlinear Properties of Magnonic and Magnonic-Phononic Crystals . ... Drawing an analogy with photonic crystals possessing a photonic band, namely the frequency range where the wave propagation is forbidden, such magnetic media can be named magnonic   and magnonic-phononic crystals. ... Such magnonic crystals in a microwave frequency range can be a challenge for photonic crystals operating at the visual light frequency band. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearPropertiesofMagnonicandMagnonicPhononicCrystals.htm -- 7.3 Кб -- 10.07.2002
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1252. Abstract
... Nonlinear Regimes of Lesion Formation by HIFU in Tissue-Mimicking Phantom . ... For single lesions, variation of acoustic pressure amplitude was combined either with the same exposure time and different duty cycle or with different exposure times in the continuous wave (cw) regime. For lesion stripes, variation of acoustic pressure amplitude was combined either with the same transducer velocity and different duty cycle or with different transducer velocity in the cw regime. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearRegimesofLesionFormationbyHIFUinTissueMimickingPhantom.htm -- 7.3 Кб -- 10.07.2002
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1253. Abstract
... Nonlinear Seismology: Experimental Structure . O.B.Khavroshkin, V.V.Tsyplakov (Schmidt United Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia) . ... Let's present a first stage of experimental search, investigation and analysis of nonlinear seismic effects, processes and medium as formative structure of nonlinear seismology. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearSeismologyExperimentalStructure.htm -- 7.5 Кб -- 10.07.2002
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1254. Abstract
... Nonlinear Sound Wave Propagation in 2-D Hysteretic Medium . ... Numerous experimental and theoretical researches show hysteresis of mesoscale structures essentially changes nonlinear properties of the media. ... Computer simulation of finite amplitude sound wave propagation in 2-D medium with random mesoscale hysteresis has been done. It is shown that hysteresis process leads to 2-D fractal formation in the medium structure under cyclic sound excitation. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearSoundWavePropagationinDHystereticMedium.htm -- 6.3 Кб -- 10.07.2002
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1255. Abstract
... Nonlinear Sound Wave Propagation in Water Solutions of D-Glucose . G.I.Maksimochkin (Laboratory of Molecular Acoustics, Moscow State Academy of Instruments Engineering and Computer Science, Moscow, Russia) . ... Results of experimental investigations of nonlinear wave propagation in water solutions of D-glucose in a range of frequencies 1,5-150 MGz, concentration 0,01; 0,025 and 0,05 m.s., pressure 0,1-200 MPa and temperatures 293 - 363 K are presented. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearSoundWavePropagationinWaterSolutionsofDGlucose.htm -- 6.3 Кб -- 10.07.2002
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1256. Abstract
... Nonlinear Stability of Roll Waves . A.Boudlal (USTL-Lab. ... e-mail: Abdelaziz.Boudlal@univ-lille1.fr . The stability of finite amplitude roll waves that may develop at a liquid free surface in inclined open channels of arbitrary cross-section is studied. In the frame of shallow water theory with turbulent friction the modulation equations for wave series are derived and a nonlinear stability criterion is obtained. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearStabilityofRollWaves.htm -- 6.0 Кб -- 10.07.2002
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1257. Abstract
... Nonlinear Standing Waves in Ultrasonic Liquid Resonators with Planar Piezoelectric Transducers . ... e-mail: physics@sstu.samara.ru . The propagadition of waves of finite amplitude in ultrasonic resonators with planar piezoelectric transdusers is researched. An analytical expression for amplitude-frequency characteristic of ultrasonic resonators is found on the basis of solution to the equation of nonlinear waves in dissipation medium and to the equations of piezoelectric effect. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearStandingWavesinUltrasonicLiquidResonatorswithPlanarPiezoelectricTransducers.htm -- 6.4 Кб -- 10.07.2002
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1258. Abstract
... Nonlinear Standing Waves in a Layer Excited by the Periodic Motion of Its Boundary . B.Enflo (Department of Mechanics, Kungl. ... A new analytical approach is developed for the description of standing waves caused by arbitrary periodic vibration of a boundary. ... The maximal "amplitude" values of the particle velocity and the energy of a standing wave are calculated. ... The standing wave profiles are described by Mathieu functions, and the energy characteristics by their eigenvalues. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearStandingWavesinaLayerExcitedbythePeriodicMotionofItsBoundary.htm -- 7.1 Кб -- 10.07.2002
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1259. Abstract
... Nonlinear Standing Waves in an Acoustical Resonator with the Longitudinal Mean Temperature Distribution . ... This paper deals with the problem of nonlinear standing waves in the axisymmetrically shaped acoustic resonators where a mean temperature is distributed along their axis. ... The one-dimensional model equation for nonlinear standing waves of the 2-nd order including a viscous boundary layer is modified to take into account a longitudinal distribution of mean temperature. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearStandingWavesinanAcousticalResonatorwiththeLongitudinalMeanTemperatureDistribution.htm -- 6.6 Кб -- 10.07.2002
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1260. Abstract
... Nonlinear Surface Acoustic Wave Interaction with Two-Dimensional Electronic System . ... In the region of delocalized electrons nonlinear effects in the SAW attenuation could be explained by the heating of electrons in the electric field of the piezoelectrically active SAW and could be described in terms of the electronic temperature Te exceeding the lattice temperature. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/NonlinearSurfaceAcousticWaveInteractionwithTwoDimensionalElectronicSystem.htm -- 6.7 Кб -- 10.07.2002
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