Results 31 to 40 of about 3,587,319 (350)
Finite element heterogeneous multiscale methods for the wave equation [PDF]
, 2013 Wave phenomena appear in a wide range of applications such as full-waveform seismic inversion, medical imaging, or composite materials. Often, they are modeled by the acoustic wave equation.
Stohrer, Christian
core +1 more source
E3S Web of Conferences, 2016 The results of continuous measurements of AEF potential gradient by CS110 fluxmeter at Paratunka observatory are presented.
Khomutov Sergey +3 more
doaj +1 more source
Spectral-Element Simulations of 3-D Seismic Wave Propagation and Applications to Source and Structural Inversions [PDF]
, 2006 This thesis presents a concise introduction to the spectral-element method and its applications to the simulation of seismic wave propagation in 3-D earth models.
Liu, Qinya
core +1 more source
Methods and Algorithms of Subsurface Holographic Sounding
Remote Sensing, 2022 In our experiments, we develop and test portable multi-element receiver antenna arrays, electrically scanned in order to immediately obtain a recognizable image of subsurface objects.
A. V. Popov +5 more
doaj +1 more source
Wave Propagation on Microstate Geometries [PDF]
Annales Henri Poincaré, 2019 AbstractSupersymmetric microstate geometries were recently conjectured (Eperon et al. in JHEP 10:031, 2016. 10.1007/JHEP10(2016)031) to be nonlinearly unstable due to numerical and heuristic evidence, based on the existence of very slowly decaying solutions to the linear wave equation on these backgrounds. In this paper, we give a thorough mathematical
openaire +3 more sources
Non-reciprocal elastic wave propagation in spatiotemporal periodic structures [PDF]
, 2016 We study longitudinal and transverse wave propagation in beams with elastic properties that are periodically varying in space and time. Spatiotemporal modulation of the elastic properties breaks mechanical reciprocity and induces one-way propagation.
G. Trainiti, Massimo Ruzzene
semanticscholar +1 more source
MATEC Web of Conferences, 2017 In this paper the results of reconstruction of the radial dependence of refraction index fluctuations spectra in axisymmetric supersonic jet from laser transillumination data are presented.
Marakasov Dmitrii +3 more
doaj +1 more source
, 2011 A computer simulator, to facilitate the design and assessment of a reconfigurable, air-coupled ultrasonic scanner is described and evaluated. The specific scanning system comprises a team of remote sensing agents, in the form of miniature robotic ...
Keith Worden +13 more
core +1 more source
Anisotropic and dispersive wave propagation within strain-gradient framework [PDF]
, 2016 In this paper anisotropic and dispersive wave propagation within linear strain-gradient elasticity is investigated. This analysis reveals significant features of this extended theory of continuum elasticity. First, and contrarily to classical elasticity,
G. Rosi, N. Auffray
semanticscholar +1 more source
Determining Wind Shear Threshold by Using Historical Sounding Data in Experimental Area
AtmosphereThis paper conducts a technical study on a method for determining the occurrence threshold of wind shear based on historical sounding data. After analyzing the impact of low-altitude wind shear on aircraft flight safety, a method for determining the ...
Tingting Shu +5 more
doaj +1 more source