bifurcation of nonstationary modes of wave propagation

... 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...

Ngày tải lên: 26/09/2015, 09:39

... 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.,...

Ngày tải lên: 18/03/2016, 01:01

... 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 ...

Ngày tải lên: 28/03/2014, 15:20

Ngày tải lên: 28/03/2014, 15:20

... 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...

Ngày tải lên: 28/04/2014, 10:18

... 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...

Ngày tải lên: 22/06/2014, 22:20

... 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...

Ngày tải lên: 08/08/2014, 23:22

... (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)...

Ngày tải lên: 13/08/2014, 23:20

... 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...

Ngày tải lên: 12/09/2015, 21:16

... 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...

Ngày tải lên: 26/11/2015, 12:54

... 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...

Ngày tải lên: 15/03/2014, 23:20

... 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...

Ngày tải lên: 27/05/2014, 02:43

... 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...

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...

Ngày tải lên: 20/06/2014, 04:20

... Wave Propagation and Nanofocusing; Antennas and Waveguides; Wave Propagation in Plasmas; Electromagnetic Waves Absorption and No Reflection Phenomena; Nonlinear Phenomena and Electromagnetic Wave ... the Basis of Surfaces with a Circular Profile 285 Oleg Ponomarev Wave Propagation in Plasmas 309 Chapter 15 Electromagnetic Waves in Plasma 311 Takayuki Umeda Chapter 16 Propagation of Electromagnetic ... comparison of transmission coefficient (S21) between the rectangular waveguide filled by one pair of Ω-shaped particles and the hollow waveguide It indicates that the cutoff frequency of the hollow waveguide...

Ngày tải lên: 20/06/2014, 05:20

... effect (b) Formation of an open cavity 32 Wave Propagation As shown in Fig 25(a), the open microwave resonator consists of two homogenous metamaterial squares in air Its resonating modes are calculated ... phenomenon of evanescent wave amplification is confirmed in slab waveguide and slab lens The perfect imaging properties of planar lens was proved by transmission optics Microwave sensors based on the waveguide ... metallized boundary remain 38 Wave Propagation We will begin with the theory for the reflection of plane waves from an arbitrarily oriented surface in the plane of incidence of the general position,...

Ngày tải lên: 20/06/2014, 05:20

... electromagnetic wave equation into a matrix equation The frequencies of the electromagnetic modes are found as the zeros of the determinant of the matrix The results of the numerical calculations of the ... beams rather than plane waves (Fig 11) Let us take into consideration that plane waves are an idealization of rather wide (compared to the wavelength) beams of small divergence Of course, it is senseless ... angle of natural divergence of a beam However, this angle can be very small (10-4 10-3 rad) for laser beams If the width of an incident beam of an ordinary wave is l, then the reflected beam of...

Ngày tải lên: 20/06/2014, 05:20

... microwaves; namely, the terahertz waves have the properties both of light and of microwaves However, on the basis of Faraday’s law of induction, the generation mechanism of the terahertz wave ... The abbreviation “THz wave corresponds to “terahertz wave 122 Wave Propagation Analysis of the epitaxial layer structures emitting the terahertz wave: direction reversal of the surface band ... indices of the pump beam and of the air air terahertz wave, respectively The quantities of θ pump and θ terahertz denote the angle of incidence of the pump beam and the emission angle of the terahertz...

Ngày tải lên: 20/06/2014, 05:20

... 1998; Bass et al, 1979) қ is the wave- number of the wave in the thin film where қo is the wave number of the wave in the free space For every given wave with a wavelength say λ propagating through ... the Bloch wave number and ky is the projection of passing wave vector onto the 0y axis The imaginary pert of Bloch wave number K'' acts as coefficient of attenuation The interaction of electromagnetic ... boundary of propagation distance As the field passes through the layers of the propagation distance, reflection and absorption of the field occurs thereby leading to the attenuation of the propagating...

Ngày tải lên: 20/06/2014, 05:20

... form of the boundary By changing the frequency of SPPs it is possible to decrease the wavelength of the SPPs to the values substantially 194 Wave Propagation smaller than the wavelength of visible ... Introduction Nanofocusing of light is localization of electromagnetic energy in regions with dimensions that are significantly smaller than the wavelength of visible light (of the order of one nanometer) ... converging wave [Bezus (2010)] In this case there is no breaking the diffraction Raleigh’s limitation and the energy of the wave is focused into the region with dimensions of the order of wavelength of...

Ngày tải lên: 20/06/2014, 05:20