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На этой странице приведены все страницы сервера acs366.phys.msu.su ,которые мы индексируем. Показаны документы 841 - 860 из 1156.

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841. AUTHOR : Feklistov V
. AUTHOR : Feklistov V. 1. ааа Acoustics of Aqueous Foams Contain Solid Particles . I.Shreiber (Department of Mecanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel); I.Goldfarb (Department of Mathematics, Ben-Gurion University of the Negev, Beer-Sheva, Israel); V.Feklistov (Institute for the Earth Cryosphere, Siberian Branch RA of Sciences, Tyumen, Russia) .
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/FeklistovV.htm -- 5.9 Кб -- 10.07.2002
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842. AUTHOR : Fetisov Y
. AUTHOR : Fetisov Y. 1. ааа Bistable Characteristics of a Nonlinear Magnetoacoustic Hematite Resonator . Y.Fetisov, I.Lukoshnikov (Moscow Institute of Radioengineering, Electronics and Automation, Moscow, Russia) .
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/FetisovY.htm -- 5.7 Кб -- 10.07.2002
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843. Abstract
... Experimental Study of the Transient Regimes in an Annular Thermoacoustic Prime-Mover . ... Recently, measurements made on annular thermoacoustic prime-movers have been reported [Physical Review Letters, 81, 1998]. Our current research focus on the transient regime of this device. Several phenomena can play a role in the amplification and saturation regimes. ... The first threshold, which corresponds to the thermoacoustic instability, is followed ? by a saturation regime. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalStudyoftheTransientRegimesinanAnnularThermoacousticPrimeMover.htm -- 7.4 Кб -- 10.07.2002
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844. Abstract
... Experiments on a Three-Phase Medium with a Negative Parameter of Nonlinearity . ... In most media, the small signal sound speed increases with increasing hydrostatic pressure. These media have positive nonlinear coefficients and the propagation of finite-amplitude signals, of sufficient amplitude, result in compressive shockwaves. ... The nonlinear coefficient is large and negative and the propagation of finite-amplitude signals can lead to the generation of rarefactive shockwaves. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentsonaThreePhaseMediumwithaNegativeParameterofNonlinearity.htm -- 6.6 Кб -- 10.07.2002
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845. Abstract
... Explicit Solutions of Nonlinear Heat Equations . ... It was recently proposed a new method for finding differential constraints which uses linear determining equations. ... In this report we start with determination of the solutions of linear determining equations of the second and third orders for the nonlinear diffusion equation. ... At last we derive exact solutions of some two-dimension equation. Bibliography ? O.V.Kaptsov (1998) Linear determining equations for differential constraints. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExplicitSolutionsofNonlinearHeatEquations.htm -- 6.5 Кб -- 10.07.2002
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846. Abstract
... Extraction of Higher Nonlinear Parameters/Virial Coefficients From Acoustic Measurements . ... Using results of Kunitsin-Rudenko perturbation theory foracoustic beam diffraction, we obtain analitical solutions for harmonics of the acoustic beam at some distance from a round flat source in the weak-dissipative medium with combined quadratic-cubic nonlinearity. ... Comparing the analitical results with experemintal data we estimate the value of the third virial coefficient for water. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExtractionofHigherNonlinearParametersVirialCoefficientsFromAcousticMeasurements.htm -- 7.4 Кб -- 10.07.2002
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847. AUTHORS - F
. AUTHORS - F . 1. ??? Faerman V. (1) . 2. ??? Fedorchuk V. M. (1) . 3. ??? Fedorchuk V. I. (1) . 4. ??? Fedorov E. (1) . 5. ??? Feklistov V. (1) . 6. ??? Fetisov Y. (1) . 7. ??? Fialkovsky I. V. (1) . 8. ??? Filimonov Yu. A. (1) . 9. ??? Filimonov Yu. L. (1) . 10. ? Filonenko E. (1) . 11. ? Fink M. (1) . 12. ? Fokin M. V. (1) . 13. ? Francescutto A. (1) . 14. ? Frikha S. (1) . 15. ? Fujikawa S. (1) .
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/F.htm -- 10.3 Кб -- 10.07.2002
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848. AUTHOR : Faerman V
. AUTHOR : Faerman V. 1. ааа Destruction of Fat Cells by Ultrasound Waves . V.Faerman, S.Tahalova (Tver Company, Tver, Russia) .
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/FaermanV.htm -- 5.6 Кб -- 10.07.2002
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849. Abstract
... Experimental Investigation of Spur-Gear Transmissions in Earth Moving Transport Machines . ... The conducted experimental investigation of acoustic vibration in metal construction of a motor grader balance beam allowed one to obtaine the discrete data of the stochastic process of acceleration changes in several control points. ... The experimental dependences of the main statistic characteristics of acoustic vibration as a function of speed of the gear reducer pivotal element are explored. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalInvestigationofSpurGearTransmissionsinEarthMovingTransportMachines.htm -- 7.0 Кб -- 10.07.2002
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850. Abstract
... Experimental Investigation of Strain Waves in Solids . ... A lot of the experimental data on investigation of dynamic behaviour of granular media and crack-containing materials at high speeds of deformation cannot be explained within the scope of the classical mechanics. ... On the other hand, it is necessary to measure the physical and mechanical characteristics of a material using the correlation between structural characteristics of a material and characteristics of elastic waves. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalInvestigationofStrainWavesinSolids.htm -- 7.1 Кб -- 10.07.2002
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851. Abstract
... Experimental Investigation of Water-Ice Phase Transitions in Acoustic Fields . ... The present paper describes experimental investigation of phase transition water-ice in acoustic fields. Experiments were done with the vertically oriented cylindrical flask filled with water. The transducer attached to the bottom of the flask generated acoustic field. ... Results of experiments showing formation of complex structures of ice in acoustic field are described and discussed in this paper. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalInvestigationofWaterIcePhaseTransitionsinAcousticFields.htm -- 6.4 Кб -- 10.07.2002
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852. Abstract
... An important feature of such media, compared to homogeneous media, is the occurrence of wave scattering when the wavelength becomes comparable to a characteristic size of the micro-structure (bead diameter). Wave scattering leads to mode conversion between compression and shear waves, and, under some conditions, leads to diffusion of acoustic waves. ... We also observed self-demodulation of shear pump waves into both shear and compression secondary waves. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalInvestigationsonParametricAntennaOperationinGranularMaterials.htm -- 7.1 Кб -- 10.07.2002
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853. Abstract
... Experimental Study of Acoustic Jets . ... We used the technique of separation of jet velocity and oscillating velocity amplitude which was proposed earlier. ... We found that there is a good agreement between our experimental data and numerical simulation data published by other authors. It was found that acoustic jet arises when the oscillating velocity amplitude exceeds a certain threshold value which increases proportionally to the sound wave frequency. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalStudyofAcousticJets.htm -- 6.5 Кб -- 10.07.2002
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854. Abstract
... Experimental Study of Sound Scattering by Vortex Rings . ... The paper presented deals with scattering of sound by vortex ring moving horizontally in a stratified liquid over the flow regimes from laminar to turbulent ones. ... According to experimental data, the ring is identified as an inhomogeneity with cross section of volume backscattering governed by internal microscale which is of an order of sound wave length. ... Section : 7 ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalStudyofSoundScatteringbyVortexRings.htm -- 7.2 Кб -- 10.07.2002
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855. Abstract
... Evidence of the Low-Frequency Nonlinear Acoustic Spectroscopy Technique for Characterization of a Layered Material with Adhesive Bonding Defects . ... The goal of this research is to demonstrate the advantages of application of the low-frequency nonlinear acoustic spectroscopy methods in a layered adhesive bonding material for the characterization and detection of various defects in adhesively bonded structures. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/EvidenceoftheLowFrequencyNonlinearAcousticSpectroscopyTechniqueforCharacterizationofaLayeredMaterialwithAdhesiveBondingDefects.htm -- 6.8 Кб -- 10.07.2002
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856. Abstract
... Evolution Equations Possessing Solutions of the Finite Power Sums Type . ... Constructing of evolution PDEs (in one spatial dimension) possessing solutions in the form of finite power sums is closely connected with the problem of description of ordinary differential operators admitting invariant subspaces of the power type. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/EvolutionEquationsPossessingSolutionsoftheFinitePowerSumsType.htm -- 6.1 Кб -- 10.07.2002
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857. Abstract
... Evolution of the Periodic Perturbations in Absolutely Unstable Media . ... The system of the equations for describing small long wavelength perturbations in the absolutely unstable ? media is considered. ... It was shown that the periodic solutions of this equations are the fundamental solutions of the Euler--Poisson--Darboux equation. ... Final studies of the evolution of the periodic perturbations in absolutely unstable media are investigated. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/EvolutionofthePeriodicPerturbationsinAbsolutelyUnstableMedia.htm -- 6.3 Кб -- 10.07.2002
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858. Abstract
... Exact Solutions of the Nonlinear Schrodinger Equation with Certain Central . ... Using the Darboux-Bargmann technique, we obtain the Backlund transformations for nonlinear Schrodinger equation solvable by the inverse-Scattering method and construct explicit solution and the BT technique is used to generate a new solution of NLSE from a known solution of the equation. ... 37,693-697(1974) 2- Hassan A. Zedan, Group Classification of a Heterogeneous Schrodinger Equations, Int. J. Non-Linear Mech., ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExactSolutionsoftheNonlinearSchrodingerEquationwithCertainCentral.htm -- 6.9 Кб -- 10.07.2002
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859. Abstract
... Excitation of Nonlineary Second Sound Waves in Solids . ... If the energy of phonons depends on parameters of the medium, which can be adiabatically changes by external fields, the resonance exsitation of second sound waves by these fields is ? possible [1]. An equation describing the resonance excitation of nonlinear second sound waves by external fields has been obtained from nonlinear equation of phonon hydrodynamics for the one-dimentional case. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExcitationofNonlinearySecondSoundWavesinSolids.htm -- 6.6 Кб -- 10.07.2002
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860. Abstract
... Experimental Acoustical Research of Nonlinear Shear ? Properties of Visco-Elastic Materials . ... Visco-elastic properties of materials are revealed first of all under shear deformation. In present work the shear visco-elastic properties of liquids have been investigated by acoustic resonance method. ... The liquid interlayer undergoes a shear deformation. ... Thickness of liquid interlayer (1-10 um) was less than shear wavelength and controlled by optical method. ...
[ Сохраненная копия ]  Ссылки http://acs366.phys.msu.su/isna16/Abstracts/ExperimentalAcousticalResearchofNonlinearShearPropertiesofViscoElasticMaterials.htm -- 6.7 Кб -- 10.07.2002
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