Results 11 to 20 of about 10,254,059 (313)
Applied Sciences, 2021 Guided waves have immense potential for structural health monitoring applications in numerous industries including aerospace. It is necessary to evaluate guided wave dispersion characteristics, i.e., group velocity and phase velocity profiles, for using ...
Muhammad Khalid Malik +2 more
doaj +1 more source
Antea Group Archeologie 2020/137
, 2022 In juli en september 2020 heeft Antea Group in opdracht van BNVB Projects B.V. een archeologisch onderzoek uitgevoerd voor het plangebied ‘Grutterij 7-9’ te Amstelveen, gemeente Amstelveen.
Looveren, V. van (Antea Group)
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Experimental verification of stress-wave bands and negative phase velocity in layered media [PDF]
Theoretical and Applied Mechanics, 2011 Based on a robust numerical method for calculation of band structure for stress-waves in heterogeneous media, a layered composite was designed and fabricated.
Amirkhizi Alireza V., Nemat-Nasser Sia
doaj +1 more source
Enhanced group velocity in metamaterials [PDF]
Journal of Physics A: Mathematical and General, 2003 The Bruggeman formalism is implemented to estimate the refractive index of an isotropic, dielectric, homogenized composite medium (HCM). Invoking the well--known Hashin--Shtrikman bounds, we demonstrate that the group velocity in certain HCMs can exceed the group velocities in their component materials.
Mackay, Tom G., Lakhtakia, Akhlesh
openaire +3 more sources
Antea Group Archeologie 2020/135
, 2022 In juli 2020 heeft Antea Group in opdracht van Panattoni een archeologisch onderzoek uitgevoerd voor het plangebied ‘DD Panattoni’ te Moerdijk, gemeente Moerdijk. De aanleiding voor het bureauonderzoek is de door Panattoni voorgenomen ontwikkeling van de
Uffink, V. (Antea Group), Brokke, A.J.
core +1 more source
American Journal of Physics, 2001 v3 adds discussion of "rephasing", and adds a figure. v4 adds references to the early history of negative group velocity, and adds a figure; thanks to Alex ...
openaire +2 more sources
Antea Group Archeologie 2020/204
, 2021 N.B.: Het onderzoek is voorgelegd aan en beoordeeld door de bevoegde overheid. Deze heeft het onderstaande advies overgenomen. Antea Group heeft in oktober 2020 een inventariserend veldonderzoek door middel van boringen (verkennende fase) uitgevoerd in ...
Fens, R. (Antea Group) +1 more
core +1 more source
Frequency spectrum and group velocities of acoustic phonons in PbI2 nanofilms
Фізика і хімія твердого тіла, 2022 Using the elastic continuum approach, an energy spectrum and spectral dependences of a group velocities of confined acoustic phonons in planar quasi-two-dimensional nanostructures (nanofilms) of hexagonal symmetry of the 2H-PbI2 type were studied by ...
Ivan Petryk +2 more
doaj +1 more source
Slow Group Velocity and Cherenkov Radiation [PDF]
Physical Review Letters, 2001 Physical Review ...
Carusotto I +3 more
openaire +5 more sources