نتایج جستجو برای: random waves

تعداد نتایج: 394346  

2004
AKIRA ISHIMARU

Many natural and man-made media such as the atmosphere, oceans, geophysical media, biological media, and composite and disordered materials have random spatial inhomogeneities and vary randomly in time, and these media are called “random media. ’’ Microwaves, optical waves, and acoustic waves propagating in these media experience random fluctuations in space and time, and these fluctuations aff...

One of the new methods for powering low-power electronic devices employed in the sea, is using of mechanical energies of sea waves. In this method, piezoelectric material is employed to convert the mechanical energy of sea waves into electrical energy. The advantage of this method is based on not implementing the battery charging system. Although, many studies have been done about energy harves...

Journal: :Physical Review Letters 2001

Journal: :Physical Review Letters 2014

Journal: :Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 2001

Journal: : 2022

In this paper, we consider a compact connected manifold (X,g) of negative curvature, and family semi-classical Lagrangian states f h (x)=a(x)e iϕ(x)/h on X. For wide phases ϕ, show that , when evolved by the Schrödinger equation during long time, resembles random Gaussian field. This can be seen as an analogue Berry’s waves conjecture for states.

Journal: :Annali della Scuola normale superiore di Pisa. Classe di scienze 2023

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