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Akademický článek

On the dynamics of nonlinear propagation and interaction of the modified KP solitons in multicomponent complex plasmas

Autor: Muhammad Shohaib, W. Masood, R. Jahangir, M. Siddiq, Sadah A. Alkhateeb, S.A. El-Tantawy

Publikováno v: Journal of Ocean Engineering and Science, Vol 7, Iss 6, Pp 555-564 (2022)

Dust-acoustic waves (DAWs) are analyzed in the small amplitude limit in a collisionless unmagnetized dusty plasma whose constituents are inertial dust grains, massless ions expressed by the generalized (r,q) distribution and inertialess Maxwellian el

Externí odkaz: https://doaj.org/article/b869b75fefc24fc4baafc18e0a03ef81

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Akademický článek

Test charge driven response of a dusty plasma with polarization force

Autor: S. Ali, W. Masood, K. Singh, R. Jahangir

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 9 (2022)

By using the framework of kinetic model, the test charge driven response of a dusty plasma is evaluated in the presence of polarization force. The plasma containing electrons, singly ionized positive ions, and highly charged negative dust particulate

Externí odkaz: https://doaj.org/article/e4d6ba9e2107476caa058408bf68b121

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Akademický článek

Interaction of electron acoustic solitons in auroral region for an electron beam plasma system

Autor: R. Jahangir, W. Masood, H. Rizvi

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 9 (2022)

The propagation of linear and nonlinear electron acoustic waves (EAWs) in an unmagnetized plasma, comprising dynamical inertial electrons, hot (r, q) distributed electrons, warm electron beam, and immobile ions is studied. The linear dispersion relat

Externí odkaz: https://doaj.org/article/d877a2b451b64ae1965b96403ac5e1b7

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Akademický článek

Contribution of the generalized (r, q) distributed electrons in the formation of nonlinear ion acoustic waves in upper ionospheric plasmas

Autor: Sidra Ali, W. Masood, H. Rizvi, R. Jahangir, Arshad M. Mirza

Publikováno v: AIP Advances, Vol 11, Iss 12, Pp 125020-125020-17 (2021)

The properties of ion acoustic solitary and periodic structures are studied in magnetized two-ion component (O+ − H+ − e) plasmas with (r, q) distributed electrons. It is found that two modes of ion acoustic waves, namely, fast and slow modes, ca

Externí odkaz: https://doaj.org/article/e4dd6682e09547f1a99d1b4934ae158b

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Akademický článek

Nonlinear Ion-Acoustic Waves in Degenerate Plasma with Landau Quantized Trapped Electrons

Autor: R. Jahangir, S. Ali

Publikováno v: Frontiers in Physics, Vol 9 (2021)

The formation of nonlinear ion-acoustic waves is studied in a degenerate magnetoplasma accounting for quantized and trapped electrons. Relying on the reductive perturbation technique, a three-dimensional Zakharov–Kuznetsov (ZK) equation is derived,

Externí odkaz: https://doaj.org/article/8cdf1ec79ae84f859b6c5b1d4850653c

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Akademický článek

Evaluation of two preoparative chemotherapy regimens for complete operability of advanced gastric adenocarcinoma: a clinical trial

Autor: S. Sedighi, M. Mohagheghi, F. Memari, R. Jahangir, A. Mousavi Jarrahi, A. Montazeri, Z. Sedighi, M. Mostaghimi Tehrani, M. Zanganeh

Publikováno v: Tehran University Medical Journal, Vol 64, Iss 7, Pp 56-64 (2006)

Background: This prospective phase III study was designed to compare the activity of two combinations chemotherapy drugs in advanced gastric adenocarcinoma Methods: In a double blinded clinical trial, From Jan. 2002 to Jan. 2005, ninety patients with

Externí odkaz: https://doaj.org/article/25ec287b16154d139ec08ab90184921e

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