منابع مشابه
Modulational instability of dust ion acoustic waves in astrophysical dusty plasmas with non thermal electrons
Propagation of dust ion acoustic waves in plasmas composed of nonthermal distributed electrons and stationary dust particles is investigated. Nonlinear Schrdinger equation is derived to describe small amplitude waves, using the reduction perturbation technique. Modulation instability of dust ion acoustic waves is analysed for this system. Parametric investigation indicates that growth rate of...
متن کاملLinear waves and reconnecting instabilities in slab magnetised low-beta non-relativistic electron-positron plasmas
The properties of a non-relativistic low-beta magnetised electron-positron plasma in slab geometry are investigated. The two species are taken to be drift-kinetic while we retain Larmor radius effects in quasi-neutrality, and inertia in Ohm’s law. It is shown that the system supports collisionless dispersive waves, which can greatly impact nonlinear magnetic reconnection, but only for large β, ...
متن کاملNon-linear transient waves
This dissertation presents the results of a new study on 2-D transient waves, formed through the focusing of wave energy. An extensive laboratory investigation has been undertaken for large number of wave groups with a range of amplitudes and frequency bandwidths. The results show that the focusing of wave energy can produce highly non-linear wave groups, where the nonlinearity increases with a...
متن کاملnon-linear study of various slit shear walls in steel structures
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
15 صفحه اولGrowing waves in drifted plasmas
Self-consistent wave solutions for structures consisting of drifting plasmas and dielectrics are presented and the appearance of growing waves in one of the models is shown. The role of collisions and diffusion is discussed and the direction of future work aimed at devices is indicated. The requirement for velocity matching implies that eventually periodic structures and space harmonics are nee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Europhysics News
سال: 1986
ISSN: 0531-7479,1432-1092
DOI: 10.1051/epn/19861705063