Archive:: World Journal of Applied Physics:: Science Publishing Group

Volume 3, Issue 2, June 2018

Specific Heat and Entropy of a Three Electron Model in Bismuth Based Cuprate Superconductor

Odhiambo Oloo Jared, Makokha John Wanjala

Issue: Volume 3, Issue 2, June 2018

Pages: 19-24

Received: 27 March 2018

Accepted: 2 May 2018

Published: 11 June 2018

DOI: 10.11648/j.wjap.20180302.11

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Abstract: A theoretical study considering Bi2201, Bi2212 and Bi2223 bismuth based cuprates whose critical Temperatures (T_C) are 20K, 95K and 110K with one, two and three CuO₂ planes respectively; based on a three electron model in Bismuth based cuprates oxide shows that there is a direct correlation between energy of interaction and the number of CuO₂ planes... Show More

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Lie symmetry Analysis and Invariant Solutions for Multiregion Neutron Diffusion Equation

Rakotondravanona Jean Eric, Raboanary Roland

Issue: Volume 3, Issue 2, June 2018

Pages: 25-33

Received: 19 May 2018

Accepted: 6 June 2018

Published: 7 July 2018

DOI: 10.11648/j.wjap.20180302.12

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Abstract: In this paper, an approach of determining analytical solutions of the mono-kinetic multiregion neutron diffusion equation from two-dimensional Cartesian geometry is presented. The technical approach is based on the Lie symmetry group for partial differential equation. The local symmetry groups to the one-parameter transformation are obtained. The i... Show More

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Chaotic Dynamics of an Extended Duffing Oscillator Under Periodic Excitation

Hervé Lucas Koudahoun, Yélomè Judicaël Fernando Kpomahou, Jean Akande, Damien Kêgnidé Kolawolé Adjaï

Issue: Volume 3, Issue 2, June 2018

Pages: 34-50

Received: 29 June 2018

Accepted: 12 July 2018

Published: 6 August 2018

DOI: 10.11648/j.wjap.20180302.13

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Abstract: In this paper, chaotic dynamics of a cubic-quintic-septic Duffing oscillator subjected to periodic excitation is investigated. The multiple scales method is used to determine the various resonance states of the model. It is found that the considered model posses thirteen resonance states whose seven are thoroughly studied. The steady-state solution... Show More

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