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Group Velocity in Finite Difference Schemes
SIAM Review, 1982The relevance of group velocity to the behavior of finite difference models of time-dependent partial differential equations is surveyed and illustrated. Applications involve the propagation of wave packets in one and two dimensions, numerical dispersion, the behavior of parasitic waves, and the stability analysis of initial boundary-value problems.
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Superluminal group velocities and information transfer
Physics Letters A, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Measurements of phase velocity and group velocity in human calcaneus
Ultrasound in Medicine & Biology, 2000Ultrasonic velocity in calcaneus correlates highly with bone mineral density, which is a good predictor of osteoporotic fracture risk. Several commercial bone sonometers perform a velocity measurement based on the transit time of a broadband pulse to assess skeletal status.
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Reference Velocity Group Mobility
2010The reference velocity group mobility model that uses an omniscient observer for knowing all the information of mobiles in the group and obtains topology information using the RPGM model scheme is described here. It is also articulated how the network partitioning can be predicted using the RVGM model.
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Energy, Power and Group Velocity†
International Journal of Electronics, 1965ABSTRACT Conservation of energy is shown to imply that, in any system which supports unattenuated harmonic waves, the energy travels with the group velocity of the waves.
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