bifurcation of nonstationary modes of wave propagation

A numerical study of wave propagation in poroelastic media by use of the localized differential quadrature (LDQ) method

Ngày tải lên : 26/09/2015, 09:39

... 2.5 Discretization of the governing equations 30 Chapter The numerical study of wave propagations in 1-D poroelastic media by use of the LDQ method 39 3.1 General 39 3.2 Wave propagation problems ... Derivation of the analytical solutions of 1-D problems 46 3.4 Remarks 50 Chapter Wave propagations in 2-D and 2-D holed poroelastic media by use of the LDQ method 61 4.1 General 61 4.2 Wave propagation ... seismic waves Careful analysis of the profiles of the seismic waves leads geography scientists to plot the density variations and compositions of the earth In medicine, by detecting the changes of...

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Theory of electromagnetic wave propagation 4188

Ngày tải lên : 18/03/2016, 01:01

... due to Professor W R Smythe of the California Institute of Technology, Professor Z A Kaprielian of the University of Southern California, and Dr K S H Lee of the California Institute of Technology ... the form of outwardly traveling spherical (but not necessarily isotropic) waves, the sphericity of the waves being a consequence of the confinement of the sources p and J to a finite part of space ... THEORY OF ELECTROMAGNETIC WAVE PROPAGATION CHARLES HERACH PAPAS PROFESSOR OF ELECTRICAL ENGINEERING CALIFORNIA INSTITUTE OF TECHNOLOGY DOVER PUBLICATIONS, INC.,...

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Báo cáo " A numerical model for the simulation of wave dynamics in the surf zone and near coastal structures " pot

Ngày tải lên : 28/03/2014, 15:20

... carried out in a wave flume with the length of 27 m, depth of 0.75 m and width of 0.50 m. An irregular wave generator is installed at one end of the wave flume. At the other end is a ... from the boundaries towards the ends of the wave absorbing zones. Finally, at the ends of the wave absorbing zones, the Summerfeld radiation condition for long waves are introduced to let remaining waves going out ... on the calibration of the numerical model. 161 When waves are breaking on beach, a part of the lost wave energy is transformed into turbulence energy. At the beginning of the wave ...

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Báo cáo " Application of a Godunov type numerical scheme and a domain decomposition technique to the parallel computation of tidal propagation " ppt

Ngày tải lên : 28/03/2014, 15:20

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application of back-propagation neural network in data forec

Ngày tải lên : 28/04/2014, 10:18

... randomizing, and size of training set, test set and verification 　 set * Network’s topology: 　 determining number of inputs, hidden layers, number of neurons in each layer, 　 number of neurons in output ... - MIN_VAL) where: SV: Scaled Value MAX_VAL: Max value of data MIN_VAL: Min value of data TFmax: Max of transformation function TFmin: Min of transformation function OV: Original Value Dividing ... values of input and output data to emphasize the important features, detect the trends and the distribution of data Normalize the input and output real values into the interval between max and of...

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Báo cáo hóa học: " Research Article Eigenvalue Problems and Bifurcation of Nonhomogeneous Semilinear Elliptic Equations in Exterior Strip Domains" doc

Ngày tải lên : 22/06/2014, 22:20

... domains instead of the exterior domains, and second, we prove that λ∗ is ﬁnite, and third, we also obtain the behavior of the two solutions on (0,λ∗ ) and some bifurcation results of the solutions ... -sequence of I in H0 (Ω), that is, I(uk ) = α + o(1) and I (uk ) = o(1) strong in H −1 (Ω) i i Then there exist an integer l ≥ 0, sequence {xk } ⊆ RN of the form (0,zk ) ∈ S, a solution u of i of (2.4) ... modify the proof in Hsu [11] We obtain the following precise asymptotic behavior of solutions of (1.1)λ and (2.4)λ at inﬁnity Lemma 3.6 (asymptotic Lemma 2) Let w be a positive solution of (2.4)λ...

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Báo cáo khoa học: "Effect of vegetative propagation on field performance up to age 8 of hybrid larch (Larix x eurolepis) clones" pot

Ngày tải lên : 08/08/2014, 23:22

... among which propagation of selected individuals (ortets) managed in hedged clone archives and, alternatively, "bulk" propagation of young forced seedlings of entire selected families are of interest ... behaviour of - ramets Besides addressing biological and technical problems, use of vegetative propagation for mass propagation of varieties will be finally supported by the prospect of high genetic ... in composition of multiclonal varieties: a study case (experiment 1) Equal representation of clones in the final composition of a multiclonal variety is a guarantee of protection of its genetic...

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Báo cáo y học: "Boundary effects influence velocity of transverse propagation of simulated cardiac action potentials" potx

Ngày tải lên : 13/08/2014, 23:20

... (see of propagation of the simulated cardiac action potentials as a function of the ratio of relative edge Plot of transverse velocityTable 2) Plot of transverse velocity of propagation of the ... simulated cardiac action potentials as a function of the ratio of relative edge area to interior area (see Table 2) of the time sequence of firing of the various chains The stimulated chain always ... a θlo value of 40 cm/s and a θlo / θtr ratio of 7.9 (average of 9.4 and 6.3), then θtr would be 5.1 cm/ s, which is close to the value of 4.7 cm/s measured in the × model (for Rol2 of 200 KΩ)...

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A numerical study of wave interaction with porous media

Ngày tải lên : 12/09/2015, 21:16

... 5.5.1 Influence of the wavelength on wave damping 129 5.5.2 5.6 Further discussion of other wave and porous bed parameters Influence of seabed thickness on wave damping 131 Solitary wave interaction ... behavior of sediment particles (Neilson et al., 2001) Wave damping is the decay of wave heights due to wave energy dissipation as they propagate towards the coast One of the influences on wave energy ... viscosity itself contributes to wave energy dissipation Wave energy dissipation results in reduction of wave heights when waves propagate over porous seabeds Modeling of wave damping over rigid porous...

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Monte carlo simulation of light propagation in stratified water

Ngày tải lên : 26/11/2015, 12:54

... SIMULATION OF LIGHT PROPAGATION IN STRATIFIED WATER DEWKURUN NARVADA (B.Sc (HONS), UOM) A THESIS SUBMITTED FOR THE DEGREE OF MASTERS OF SCIENCE DEPARTMENT OF PHYSICS NATIONAL UNIVERSITY OF SINGAPORE ... medium in terms of an equivalent homogeneous one yields the average of a combination of the optical property over the penetration depth Then the effects of a nonuniform vertical profile of the inherent ... 0.835 cos ϕ ) 2.30 The wavelength dependence of λ-4.32 results from the wavelength dependence of the index of refraction The 0.835 factor is attributable to the anisotropy of the water molecules...

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WAVE PROPAGATION THEORIES AND APPLICATIONS docx

Ngày tải lên : 15/03/2014, 23:20

... notation of the displacement of the time-harmonic field of the shear wave, z is the wave propagation distance which is perpendicular to the direction of the displacement of the shear wave, and ... electromagnetic wave propagation and antenna considerations in tunnels, RF wave propagation through vegetation, optical wave propagation in Kerr media, new CAD model for microwave FET, and numerical ... (higher than a few tens of kHz), 2   cs ( ) / 2  very high  (13) Shear Wave Propagation in Soft Tissue and Ultrasound Vibrometry Figure Plot of phase velocity of shear wave having μ1=3 kpa...

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Electronics Technician Volume 7 Antennas and Wave Propagation

Ngày tải lên : 27/05/2014, 02:43

... weatherproofing, waveguides, and waveguide couplings When you have completed this chapter, you should be able to discuss the basic principles of wave propagation and the atmosphere’s effects on wave propagation ... diffraction results in a change of direction of part of the radio -wave energy around the edges of an obstacle Radio waves with long wavelengths compared to the diameter of an obstruction are easily ... ground wave Figure 1-9.—Phase shift of reflected radio waves 1-7 waves reflected from the earth’s surface Waves A and B bounce off the earth’s surface like light off of a mirror Notice that the positive...

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Báo cáo sinh học: "Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications, simulations and measurements" pot

Ngày tải lên : 18/06/2014, 22:20

... Steier, Waveguides: characteristic modes of hollow rectangular dielectric waveguides Appl Opt 15(5), 1334– 1340 (1976) A Emslie, R Lagace, P Strong, Theory of the propagation of UHF radio waves ... step consists of a calculation of the cumulative density function (CDF) of the simulated results Last step consists of applying the Kolmogorov–Smirnov (KS) criterion between CDF of simulated results ... the simplicity of intersection computation with rays The intersection of ray with a cylinder (respectively a plane) leads to the resolution of an equation of degree (respectively of degree 1) 3.3...

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báo cáo hóa học:" Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications, simulations and " potx

Ngày tải lên : 20/06/2014, 04:20

... Steier, Waveguides: characteristic modes of hollow rectangular dielectric waveguides Appl Opt 15(5), 1334– 1340 (1976) A Emslie, R Lagace, P Strong, Theory of the propagation of UHF radio waves ... step consists of a calculation of the cumulative density function (CDF) of the simulated results Last step consists of applying the Kolmogorov–Smirnov (KS) criterion between CDF of simulated results ... the simplicity of intersection computation with rays The intersection of ray with a cylinder (respectively a plane) leads to the resolution of an equation of degree (respectively of degree 1) 3.3...

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