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16.573  Articles
1 of 1.658 pages  |  10  records  |  more records»
This study is based on new soliton solutions of the system of equations for the ion sound wave under the action of the ponderomotive force due to high-frequency field and for the Langmuir wave. The generalized Kudryashov method (GKM), which is one of the ... see more

We study dark solitons, namely density dips with a phase jump across the density minimum, in a one-dimensional, weakly lossy nonlinear acoustic metamaterial, composed of a waveguide featuring a periodic array of side holes. Relying on the electroacoustic ... see more

In this paper, we apply the sine-Gordon expansion method which is one of the powerful methods to the generalized-Zakharov equation with complex structure. This algorithm yields new complex hyperbolic function solutions to the generalized-Zakharov equation... see more

This study bases attention on new analytical solutions of Phi-four equation. The modified exp -expansion function method (MEFM) has been used to obtain analytical solutions of the Phi-four equation. By using this method, dark soliton solutions and trigono... see more

In this paper, numerical solutions for nonlinear coupled Korteweg-de Vries(abbreviated as KdV) equations are calculated by the Sinc-collocation method. This approach is based on a global collocation method using Sinc basis functions. The first step is to ... see more

A number of recent cosmological observations have provided increasing evidence that currently the universe is undergoing a phase of accelerated expansion, the root cause of which is supposed to be due to an exotic component of the universe with large nega... see more

A rigorous theoretical investigation has been made on nonlinear dust-ion-acoustic (DIA) solitary waves (SWs) in a multi-ion dusty plasma system, consisting of inertial positive and negative ions, and arbitrary charged stationary dust. The dust particles h... see more

There is compelling evidence from cosmological and astrophysical observations that about one quarter of theenergy density of the universe can be attributed to cold dark matter (CDM), whose nature and properties are still unknown. Around the world large nu... see more

Gender and social inequalities in the African society have rendered African women vulnerable and susceptible to subjugation and various forms of exploitation. However, the insidious nature of women’s exploitation, the factors responsible for it, its magni... see more

1 of 1.658 pages  |  10  records  |  more records»