Top PDF Rough thin pavement thickness estimation by GPR
Rough thin pavement thickness estimation by GPR
... the thickness of thin pavements consider flat interfaces for simpli- ...the rough thin pavement are calculated from a rigorous electromagnetic method, the PILE ...the pavement ...
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Estimation of time delay and interface roughness by GPR using modified MUSIC
... 2. Rough pavement scattering model In order to give some ideas about the scattering from a rough pavement, a realistic 55 simulation of a typical thin asphalt road structure ...
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Soil surface water content estimation by full-waveform GPR signal inversion in the presence of thin layers
... ultrawideband GPR can be set ...extent by the inherent heterogeneities present in the sandbox, including slight surface rough- ...the GPR measured signal becomes of poorer quality for the ...
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Modeling of EM Wave Coherent Scattering From a Rough Multilayered Medium With the Scalar Kirchhoff Approximation for GPR Applications
... the GPR signal to profile 2-D rough ...a rough air–ground interface, only one interface was ...soil by 2-D FDTD for the rough ground surface scattering only, in order to understand and ...
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New approach of diffraction of electromagnetic waves by a rough surface
... According to the geometric nature of the surface meth- ods used to solve are of different types depending on the value of the radius of curvature with respect to the wavelength. They appeal to geometrical optics for very ...
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Decomposition of a tribological system by chaos theory on rough surfaces
... slope of the estimated pro files (dz/dx, where z is the amplitude of the topography and x the sampling length of the surface). Two types of behavior are likely to cause a change in the machined surface: chatter and ...
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Effects of the thickness on the properties of erbium-doped silicon-rich silicon oxide thin films
... layer thickness on the emission of Er ions coupled to Si nano- clusters within a silica matrix obtained by magnetron co- sputtering at two typical temperatures (ambient and 500 ...as thin layers of ...
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Mechanistic approach to pavement analysis
... The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information ...
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Amélioration des performances d'un amplificateur de puissance pour un radar GPR
... florin-doru.hutu@insa-lyon.fr : correspondant principal Résumé Cet article présente l’amélioration du fonctionnement d’un amplificateur de puissance inclus dans le module d’émission d’un radar GPR (ground ...
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Nonlinear vibrations of thin plates with variable thickness: Application to sound synthesis of cymbals
... FIG. 2. Ouput displacements (first row, a-c) and velocity spectrograms (second row, d-f) for the simulations of the nonlinear vibrations of a thin circular plate with a uniform thickness h=1 mm (a,d) ; with ...
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Light scattering by periodic rough surfaces: equivalent jump conditions
... light by a periodic rough interface between air and a ...replaced by a layer filled with an equivalent medium, our modeling yields effective jump conditions applying across the region containing the ...
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Thickness Dependence and Strain Effects in Ferroelectric Bi 2 FeCrO 6 Thin Films
... of thickness and strains induced by the substrate on the ferroelectric polarization and conduction properties of Bi 2 FeCrO 6 thin films grown by PLD on STO ...the thickness. The ...
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Pavement material database - a tool to facilitate implementation of the new M-E pavement design guide
... M-E pavement design guide revealed the inability of built-in empirical equations and correlation relationships to correctly estimate the mechanistic properties of HMA and unbound materials needed as input for ...
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Determination of refractive index, thickness, and the optical losses of thin films from prism-film coupling measurements
... a thin layer or in a small differ- ence of refractive indexes between the layer and sub- ...the thickness was assumed equal to 180 nm from the provider data to determine the refractive ...
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Homogenization via unfolding in domains separated by the thin layer of the thin beams
... a thin heterogeneous layer consisted of the thin beams (of radius r) and we study the limit behaviour of this problem as the periodicity ε, the thickness δ and the radius r of the beams tend to ...
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Détection de zones humides dans le béton par GPR en présence d’un gradient d’humidité.
... concrete by combining a numerical approach and experimental ...established by capillary rise in one case and by drying in the other ...its thickness is less than 2/5 of the signal ...
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Détection de zones humides dans le béton par GPR en présence d’un gradient d’humidité
... En effet, dans le cas où les propriétés diélectriques (à savoir la permittivité dié- lectrique et la conductivité électrique) évoluent de manière linéaire sur l’épaisseur de la dalle, [r] ...
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Updating prior geologic uncertainty with GPR traveltime tomographic data
... As previously suggested, the methodology can be used to compare different geophysical methods in terms of their ability to narrow prior uncertainty, e.g. ERT versus GPR, or traveltime tomography versus full ...
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Effect of thickness and deposition rate on the structural and magnetic properties of evaporated Fe/Al thin films
... of thickness and deposition rate on the structural and magnetic properties of evaporated Fe/Al thin films Authors M Mebarki, A Layadi, L Kerkache, A Benabbas, Nicolas Tiercelin, Vladimir Preobrazhensky, ...
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Exponential sine sweeps for the autonomous estimation of nonlinearities and errors assessment by bootstrap Application to thin vibrating structures
... models estimation Slightly nonlinear system modeled as parallel Hammerstein models Kernels easily estimated using exponential sine sweeps (see [Farina, AES, 2000], [Rébillat, JSV, 2011] or [Novak, IEEE ...
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