s function for waves in dissipative media

... propagation in complex systems such as modern materials and structures This book is intended to give the explanatory 20 chapters which consist of original works of the leading scientists in the field ... those of the editors or publisher No responsibility is accepted for the accuracy of information contained in the published articles The publisher assumes no responsibility for any damage or injury ... electromagnetic waves in layered lossy and dispersive medium and after the physical forward modeling experiment, in chapter 7, the delamination in polished wall paintings by wall coupling antennas using...

Ngày tải lên: 19/06/2014, 19:20

... Electromagnetic Waves Scattering by Surface Fractal Structures 25 The analysis of schedules leads to such results: • Scattering is symmetric concerning of a falling plane; • The greatest intensity of the scattering ... average scattering coefficient the scattering indicatrises diagrams for various surfaces and falling angles were calculated The analysis of the diagrams results in the following conclusions: the scattering ... cos θ1  c u s uv )    sinc2 ( kAX ) sinc2 ( kBY ) (7) As expression (7) consist the infinite sum to use it for numerical calculations inconveniently Essential simplification is reached in...

Ngày tải lên: 19/06/2014, 19:20

... Electromagnetic Waves in Different Media and Structures electromagnetic waves in monoclinic crystal Also for bi-anisotropic media, there exist two electromagnetic waves in Dzyaloshinskii s bi-anisotropic media, ... constitutive equations of complex media, such as anisotropic media, bi-anisotropic media, lossy media, dissipative media, and chiral media, a set of modal equations of electromagnetic waves for ... on stacks of periodic structures of dielectric cylinders with double dielectric inclusions The characteristics for scattering from structure 1, and are illustrated The results show that stacks...

Ngày tải lên: 19/06/2014, 19:20

... can perform parameter tuning exercise using design tools such as HFSS Fig shows an example of the detailed design using HFSS where the emission was introduced at the gap region between inner radial ... used in the laboratory spectroscopic analysis, continuous emissions monitoring in the field, commercial processing, and other environmental applications Atmospheric-pressure microwave plasma sources ... this limitation is to use the annular beam as was commonly done in TWTs The main reason using reentrant cavities in most microwave tubes with circular cross sections is that the gap region should...

Ngày tải lên: 19/06/2014, 19:20

... drawing site, such as palace paintings, temple paintings, grotto frescoes, coffin chamber murals, residential paintings and so on Most of the paintings, including grotto frescoes, palace paintings ... layerstructured wall paintings in those sections suffer distortion and breach under the pressure of vertical shearing stress, showing the unequal distribution of different interface stress upon ... diseases and damage The most common painting diseases are delamination, flaking, disruption, smoking, pollution, deep-loss, paintlosses, cracks-hatch, mechanical-damage and so on Delamination is...

Ngày tải lên: 19/06/2014, 19:20

... momentum in the presence of a photon momentum The conclusion made on the basis of the is θ = θ' + δ Let 's find sinθ = sinθ'cosδ + sinδcosθ' Considering that δ is too small we find  p sinδcosθ' ... nuclear mass is aiming to infinity m2 → ∞ the formula (2.15) is transformed into Einstein 's standard law for the photoeffect Besides, this, as if it has been specified earlier, angular distribution ... dynamics of carriers in semiconductors In this chapter, time domain THz spectroscopy based on EO sampling via the Pockels effect is discussed Furthermore, the response spectrum of the EO crystals...

Ngày tải lên: 19/06/2014, 19:20

... and high sensitivity 2.3 Time domain terahertz spectroscopy system Figure shows the setup for free space THz EO sampling measurements The ulrafast laser pulse is split by a beam splitter into two ... determined by steady-state properties, such as saturation velocities and nobilities However, (b) in very short channel transistors, carrier transport is quasi-ballistic and their switching speed is ... discussion above, we know from the measured temporal waveforms of THz electric fields emitted from GaAs samples shown in Figs 9, the power dissipation spectra in intrinsic bulk GaAs under step -function- like...

Ngày tải lên: 19/06/2014, 19:20

... 2ICosDSinD ′ ′ σ 22 = σ1 + ( σ′ − σ1 ) Cos 2ICos 2D ′ σ 23 = σ′2CosISinD − ( σ′ − σ1 ) CosISinICosD ′ σ31 = σ′2CosICosD − ( σ′ − σ1 ) CosISinISinD ′ σ32 = −σ′2CosISinD − ( σ′ − σ1 ) CosISinICosD ... cables, RF loose connections, BTS Tx/Rx on roofs, high order modes or NonTEM ducted waves in buildings, transmitters in tunnels are all can be considered as samples of Near-Field Sources 2.4 Exposing ... sensors used for low frequency applications based on Pockels-effect (E-field sensor) and Hall-effect (B-field sensor) The size of such sensors is small enough to use them in many applications...

Ngày tải lên: 19/06/2014, 19:20

... density and exposure time should remain below the safe values for sensitive organs such as eyes and testes The key point is increasing the temperature in organs Fig 14 Threshold levels versus ... is used also in series to the transmission line S2 1 depends on the materials and the form of the transmission line However the capacitor has not the structure of the transmission line Therefore ... radiation is given and measuring techniques for each region of radiation is also discussed There are different definitions regarding safety standards The main problem for using such safety recommendations...

Ngày tải lên: 19/06/2014, 19:20

... We insert the   for expression for n n ,N ,k (t)  a doped superlattice into the expression for j⊥ (t) and then ⊥ insert the expression for j⊥ (t) into the expression for α in Eq.(9) Using ... and discuss the expression of the nonlinear absorption coefficient for the case of a specific doped superlattices n-GaAs/p-GaAs We use some results for nonlinear absorption in case absence of ... of the system increases Causes of this phenomenon: when the temperature and the concentration doped of system increases, leading to increased particle density, increased stimulation resulting vibrations...

Ngày tải lên: 19/06/2014, 19:20

... energy in the form of transverse electromagnetic (TEM) waves in free space, material media, and transmission lines as well as transverse electric and magnetic waves in waveguides Such solutions are ... all EM waves since ε sw = for classical EM traveling waves with E ⊥ H (null fields) whilst ε sw ≠ for parallelizable fields (generic fields) and for classical standing waves with E ⊥ H It should ... maintained in some region of space is an interesting question One answer is that they are due to the superposition os waves traveling in opposite directions It should be noted that for TEM waves...

Ngày tải lên: 19/06/2014, 19:20

... Electromagnetic Response of Extraordinary Transmission Plates Inspired on Babinet s Principle 331 2006) is a real tuneable EBG comprising several periods, whereas the structures presented in (Dolling et ... Different Media and Structures Stacked self-complementariness-based extraordinary transmission layers The next question to be answered is whether the subwavelength-stacking of these modified SHAs would ... self-complementariness Prior to any analysis of some curious polarization effects presented here in modified SHAs, we require clarifying some concepts Let us start with the meaning of complementariness for...

Ngày tải lên: 19/06/2014, 19:20

... our result is more accurate than LLD This conclusion is also embodied by its Taylor series form on τ which includes infinite terms, while LLE only includes the linear term of τ It is easy for ... classical radiation can be written as a sum over plane waves of various frequencies and wave vectors with random phases For the massless scalar field, the spatially homogeneous and isotropic distribution ... negative or positive refraction in self-complementariness-based extraordinary transmission prism Progress In Electromagnetics Research, Vol 103, (April 2010), pp 101-114 Nicolson, A.M., & Ross, G.F...

Ngày tải lên: 19/06/2014, 19:20

... light intensity increase in this case In these results, detected shapes of the cavity interface are deformed This means that the measurement does not have high spatial resolution From the viewpoint ... find many interesting applications which based on either its validity or its breakdown, in the large number of areas involving transmission of signals ranging of classical optical problems In ... is no established non-destructive measurement method for opaque insulating materials 384 Behaviour of Electromagnetic Waves in Different Media and Structures In order to obtain internal information...

Ngày tải lên: 19/06/2014, 19:20

... possible way is to observe transmission asymmetry in the light propagating through these materials as shown in Fig which shows this interesting process and lists four different distributions ... expressions for θ(nLSE), θ(nRSE) are:    R sin ( θ ) + dnLSE  θ ( n ) = arcsin   LSE   R + dn + RdnLSE sin ( θ )  ( LSE )        R sin ( θ ) − dnRSE  θ ( nRSE ) = arcsin  ... Equation (8) of spatial shift obtained in the form of expression Δ = ΔR + Δθ is useful for FAA with separate phase steering by distance and by angular coordinates synthesis, it also helps to reduce...

Ngày tải lên: 19/06/2014, 19:20

... done in its azimuth plane or in polar coordinates Expressions of spatial shifts between elements and phase center of arrays where spatial shifts by distance and spatial shifts by angular coordinate ... Electromagnetic Waves in Different Media and Structures Conclusion In this chapter, beamforming of antenna arrays focused in NFZ or IFZ is studied and the new principles of this process are revealed ... UHF optics and quasioptics Publishing of TSTU, ISBN 978-5-8265-0880-0, Tambov, Russia (in Russian) Narasimhan M S & Philips B (1987a) Synthesis of near-field patterns of arrays, Antennas and Propagation,...

Ngày tải lên: 19/06/2014, 19:20

... paper is as follows In Section 2, we review the properties of functional determinants and linear functionals We construct a special basis of the solutions in Section and introduce some functions that ... results of this paper can be used for the investigation of quasilinear problems, conditions for positiveness of Green s functions, and solutions with various BCs, for example, NBCs The structure ... special Green s function for the problem with discrete initial conditions We apply these results to BVPs with NBCs: first, we construct the Green s function for classical BCs, then we can construct...

Ngày tải lên: 21/06/2014, 11:20

... coefficient the scattering indicatrises diagrams for various surfaces and falling angles were calculated The analysis of the diagrams results in the following conclusions: the scattering is symmetrically ... Electromagnetic Waves Scattering by Surface Fractal Structures 25 The analysis of schedules leads to such results: • Scattering is symmetric concerning of a falling plane; • The greatest intensity of the scattering ... theoretical research of processes of electromagnetic waves scattering selfsimilar heterogeneous objects (by rough surfaces) is a necessity to use the mathematical models of dispersive objects As a basic...

Ngày tải lên: 26/06/2014, 23:20

... inhibitors for Cu60 – Zn40 in 0.5M HNO3 Anti-Corrossion Methods Mater 2001; 48(5): 304-8 Finsgar M, Fassbender S, Nicolini F, Milosev I Polyethyleneimine as corrosion inhibitor for ASTM 420 stainless ... potentials in acidic solutions Poly(o-methoxyaniline) was successfully polymerised on stainless steel electrodes, as shown by cyclic voltammetry and impedance spectroscopy, and provided corrosion inhibition ... polyethyleneimine (PEI) as corrosion inhibitor for ASTM 420 stainless steel in 30% aqueous NaCl was studied [54] The results of linear polarization and cyclic polarization measurements indicate high inhibition...

Ngày tải lên: 27/04/2015, 09:08

... expression of specific Ras isoforms in the affected organs (Leon et al., 1987) Experiments in mouse genetics have suggested that there are distinct functions of Ras isoforms in specific tissues throughout ... 2004) Chapter Introduction 1.1.1 Ras subfamily of small GTPases K-Ras , N-Ras and H-Ras The Ras subfamily of small GTPases encompasses 36 genes, coding for 39 Ras proteins The great fascination of ... modification such as lipid binding, interaction with second messengers such as cAMP or by interaction with other proteins mediated by a variety of protein interaction domains Indeed, many signaling GEFs...

Ngày tải lên: 11/09/2015, 10:02