Results 31 to 40 of about 3,237,360 (342)

Dispersion Curves of Transverse Waves Propagating in Multi-Layered Soils from Experimental Tests in a 100 m Deep Borehole

Geosciences, 2021
The estimate of the velocity of shear waves (Vs) is essential in seismic engineering to characterize the dynamic response of soils. There are various direct methods to estimate the Vs.
Angelo Aloisio, Ferdinando Totani, Rocco Alaggio, Gianfranco Totani   +3 more
doaj   +1 more source

Fingerprints of the hierarchical building up of the structure on the gas kinematics of galaxies [PDF]

, 2012
Recent observational and theoretical works have suggested that the Tully-Fisher Relation might be generalised to include dispersion-dominated systems by combining the rotation and dispersion velocity in the definition of the kinematical indicator ...
Abadi, Amorín, Avila-Reese, Avila-Reese, Barnes, Barton, Bell, Böhm, Catinella, Conselice, Covington, Cresci, de Rossi, Flores, Gnerucci, Guo, Gurovich, Kannappan, Kassin, M. E. De Rossi, McGaugh, Meyer, Mihos, Miller, Mo, Mosconi, Moster, Nakamura, P. B. Tissera, Pedrosa, Persic, Pizagno, Portinari, Puech, Reyes, S. E. Pedrosa, Scannapieco, Scannapieco, Scannapieco, Scannapieco, Simard, Snaith, Springel, Springel, Springel, Stewart, Tissera, Tissera, Torres-Flores, Tully, Tully, Vogt, Vogt, Weiner, Woosley, Yegorova   +55 more
core   +4 more sources

Fast Inversion of Air-Coupled Spectral Analysis of Surface Wave (SASW) Using in situ Particle Displacement

ISPRS International Journal of Geo-Information, 2015
Spectral Analysis of Surface Wave (SASW) is widely used in nondestructive subsurface profiling for geological sites. The air-coupled SASW is an extension from conventional SASW methods by replacing ground-mounted accelerometers with non-contact ...
Yifeng Lu, Yinghong Cao, J. Gregory McDaniel, Ming L. Wang   +3 more
doaj   +1 more source

Estimation of Shear-Wave Velocity Structures in Taichung, Taiwan, Using Array Measurements of Microtremors

Applied Sciences, 2021
Near-surface S-wave velocity structures (VS) are crucial in site-effect studies and ground-motion simulations or predictions. We explored S-wave velocity structures in Taichung, the second-largest city in Taiwan by population, by employing array ...
Huey-Chu Huang, Tien-Han Shih, Cheng-Ta Hsu, Cheng-Feng Wu   +3 more
doaj   +1 more source

The dark matter halo shape of edge-on disk galaxies - II. Modelling the HI observations: methods [PDF]

, 2010
This is the second paper of a series in which we attempt to put constraints on the flattening of dark halos in disk galaxies. For this purpose, we observe the HI in edge-on galaxies, where it is in principle possible to measure the force field in the ...
Boulanger, de Blok, Dickey, Fall, Fraternali, Fraternali, García-Ruiz, J. C. O'Brien, K. C. Freeman, Kregel, Kregel, Lo, Mathewson, Nelder, O'Brien, Olling, P. C. van der Kruit, Petric, Rownd, Rubin, Sancisi, Shane, Shostak, Sofue, Sofue, Swaters, Takamiya, Uson, van der Kruit, van der Kruit, van der Kruit, Warmels   +31 more
core   +2 more sources

Application of an Automatic Noise or Signal Removal Algorithm Based on Synchrosqueezed Continuous Wavelet Transform of Passive Surface Wave Imaging: A Case Study in Sichuan, China

Applied Sciences, 2021
Passive surface wave imaging based on noise cross-correlation has been a research hotspot in recent years. However, because randomness of noise is difficult to achieve in reality, prominent noise sources will inevitably affect the dispersion measurement.
Jie Fang, Guofeng Liu, Yu Liu
doaj   +1 more source

Dispersion points and rational curves [PDF]

Proceedings of the American Mathematical Society, 2020
We construct two connected plane sets which can be embedded into rational curves. The first is a biconnected set with a dispersion point. It answers a question of Joachim Grispolakis. The second is indecomposable. Both examples are completely metrizable.
openaire   +2 more sources

Inversion of Rayleigh Wave Dispersion Curve Extracting from Ambient Noise Based on DNN Architecture

Applied Sciences, 2023
The inversion of the Rayleigh wave dispersion curve is a crucial step in obtaining the shear wave velocity (VS) of near-surface structures. Due to the characteristics of being ill-posed and nonlinear, the existing inversion methods presented low ...
Qingsheng Meng, Yuhong Chen, Fei Sha, Tao Liu   +3 more
doaj   +1 more source

Lam\'e polynomials, hyperelliptic reductions and Lam\'e band structure

, 2004
The band structure of the Lam\'e equation, viewed as a one-dimensional Schr\"odinger equation with a periodic potential, is studied. At integer values of the degree parameter l, the dispersion relation is reduced to the l=1 dispersion relation, and a ...
Arscott F.M, Belokolos E.D, Belokolos E.D, Burnside W, Guerritore G, Its A.R, Kostov N.A, Krichever I.M, Krichever I.M, Königsberger L, Sacchetti A, Treibich A   +11 more
core   +1 more source

Influence of Physical Parameters of Coal Seam on “Cross” Phenomenon of Rayleigh In-seam Wave Dispersion Curve

Meikuang Anquan, 2020
Dispersion curves of Rayleigh channel waves may have “cross” between the fundamental and first higher order modes either in the phase velocities or in group velocities in the low frequency band.
HE Daxi, ZHU Peimin, SHEN Suishui, CAI Wei, WANG Wengang
doaj   +1 more source