Publications related to Velocity factor

Crack front waves: A 3D dynamic response to a local perturbation of tensile and shear cracks

Jean-François Molinari, Fabian Barras, Damien Spielmann, Fatima-Ezzahra Fekak

Crack front waves are long-lived perturbations propagating along the crack front. They are triggered by heterogeneities on the crack plane, as for instance tough asperities, which disturb the crack front shape. Crack front waves are thought to leave a trac ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Seismic and Microseismic Signatures of Fluids in Rocks: Bridging the Scale Gap

Lucas Xan Pimienta, Christian David

The aim of this collection is to record a snapshot of our current state of understanding of the impact of fluids on the evolution and monitorability of subsurface rock formations during anthropogenic fluid injection/withdrawal operations, accounting for sc ...

AMER GEOPHYSICAL UNION2019

Force measurement of a gas-assisted atomization using an impulse probe

Farzad Vakili Farahani

The main objective of this study was to develop further insight into the mass flux characterization of an effervescent atomization. The spray is injected through an industrial effervescent nozzle, and is measured using a newly developed coupled PDPA + IS m ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Anomalous Vp/Vs ratios at seismic frequencies might evidence highly damaged rocks in subduction zones

Marie Estelle Solange Violay, Lucas Xan Pimienta

Unusually high compressional (P) to shear (S) wave velocity ratios (V-p/V-s) were measured at different subduction zones and interpreted as fluid-pressurized regions. Because no laboratory data reported such high values in isotropic rocks, mineralogical or ...

2018

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Anton Schleiss, Giovanni De Cesare, Michael Müller

In pumped-storage reservoirs, turbulent kinetic energy input from plant operation can be considerably high. Flow velocities were measured by Acoustic Doppler Current Profilers near the intake/outlet structure to describe flow patterns induced by pumped-sto ...

2018

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals, 2018 International Conference on Optical MEMS and Nanophotonics (OMN)

Hans Peter Herzig, Gaël David Osowiecki, Nicolas Maxime André Descharmes, Babak Vosoughi Lahijani

A 1D photonic crystal structure sustaining optical surface waves is investigated. The propagation length of the surface mode is studied both using an eigenmode model and a rigorous time domain solver. The two models show good convergence. Our results demon ...

2018

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals

Hans Peter Herzig, Gaël David Osowiecki, Nicolas Maxime André Descharmes, Babak Vosoughi Lahijani

IEEE2018

Estimation of wave propagation velocity on a channel with smooth and rough bed

Anton Schleiss, Michael Pfister, Davide Wüthrich, Ioan Nistor

Natural hazards such as tsunamis, impulse waves and dam-break waves are rare, but extremely destructive. In recent times, more importance was given to structures that could withstand such events, however, uncertainties still exist in the estimation of wave ...

2017

Demographic stochasticity and resource autocorrelation control biological invasions in heterogeneous landscapes

Andrea Rinaldo, Andrea Giometto, Florian Altermatt

Mounting theoretical evidence suggests that demographic stochasticity, environmental heterogeneity and biased movement of organisms individually affect the dynamics of biological invasions and range expansions. Studies of species spread in heterogeneous la ...

Wiley2017

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Velocity factor

Fracture toughness of sandstone under dry, saturated and immerged conditions

Crack front waves: A 3D dynamic response to a local perturbation of tensile and shear cracks

Seismic and Microseismic Signatures of Fluids in Rocks: Bridging the Scale Gap

Force measurement of a gas-assisted atomization using an impulse probe

Anomalous Vp/Vs ratios at seismic frequencies might evidence highly damaged rocks in subduction zones

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals, 2018 International Conference on Optical MEMS and Nanophotonics (OMN)

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals

Estimation of wave propagation velocity on a channel with smooth and rough bed

Demographic stochasticity and resource autocorrelation control biological invasions in heterogeneous landscapes

Graph Chatbot

Chat with Graph Search

Seismic and Microseismic Signatures of Fluids in Rocks: Bridging the Scale Gap

Crack front waves: A 3D dynamic response to a local perturbation of tensile and shear cracks

Fracture toughness of sandstone under dry, saturated and immerged conditions

Force measurement of a gas-assisted atomization using an impulse probe

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals, 2018 International Conference on Optical MEMS and Nanophotonics (OMN)

Anomalous Vp/Vs ratios at seismic frequencies might evidence highly damaged rocks in subduction zones

Demographic stochasticity and resource autocorrelation control biological invasions in heterogeneous landscapes

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Estimation of wave propagation velocity on a channel with smooth and rough bed

Investigation of the Propagation Length of Bloch Surface Waves on One Dimensional Photonic Crystals