Energy-transport velocity under Lorentz transformation

1967 ◽  
Vol 55 (5) ◽  
pp. 727-728
Author(s):  
I. Sugai
Keyword(s):  
Lorentz Transformation ◽  
Energy Transport ◽  
Transport Velocity

Energy transport velocity in bidispersed magnetic colloids

2012 ◽  
Vol 86 (1) ◽  
Author(s):  
Hem Bhatt ◽  
Rajesh Patel ◽  
R. V. Mehta
Keyword(s):  
Energy Transport ◽  
Transport Velocity ◽  
Magnetic Colloids

scholarly journals Ultra slow acoustic energy transport in dense fish aggregates

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Benoit Tallon ◽  
Philippe Roux ◽  
Guillaume Matte ◽  
Jean Guillard ◽  
John H. Page ◽  
...  
Keyword(s):  
Energy Transport ◽  
Diffusion Theory ◽  
Mean Free Path ◽  
Basic Mechanism ◽  
Ultrasonic Waves ◽  
Acoustic Energy ◽  
Wave Transport ◽  
Open Sea ◽  
Transport Velocity ◽  
Slow Transport

AbstractA dramatic slowing down of acoustic wave transport in dense fish shoals is observed in open-sea fish cages. By employing a multi-beam ultrasonic antenna, we observe the coherent backscattering phenomenon. We extract key parameters of wave transport such as the transport mean free path and the energy transport velocity of diffusive waves from diffusion theory fits to the experimental data. The energy transport velocity is found to be about 10 times smaller than the speed of sound in water, a value that is exceptionally low compared with most observations in acoustics. By studying different models of the fish body, we explain the basic mechanism responsible for the observed very slow transport of ultrasonic waves in dense fish shoals. Our results show that, while the fish swim bladder plays an important role in wave scattering, other organs have to be considered to explain ultra-low energy transport velocities.

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