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Dissipation and amplification management in an electrical model of microtubules: Hybrid behavior network |
Sedric Ndoungalah1, Guy Roger Deffo2,†, Arnaud Djine1, and Serge Bruno Yamgoué3 |
1 Department of Physics, Faculty of Science, University of Bamenda, P. O. Box 39 Bamenda, Cameroon; 2 Research Unit of Automation and Applied Computers(UR-AIA), Department of Electrical Engineering, IUT-FV of Bandjoun, University of Dschang, BP 134, Bandjoun, Cameroon; 3 Department of Physics, Higher Teacher Training College Bambili, The University of Bamenda, P. O. Box 39 Bamenda, Cameroon |
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Abstract The control of dissipation and amplification of solitary waves in an electrical model of a microtubule is demonstrated. This model consists of a shunt nonlinear resistance-capacitance (J(V)-C(V)) circuit and a series resistance-inductance (R-L) circuit. Through linear dispersion analysis, two features of the network are found, that is, low bandpass and bandpass filter characteristics. The effects of the conductance's parameter λ on the linear dispersion curve are also analyzed. It appears that an increase of λ induces a decrease (an increase) of the width of the bandpass filter for positive (negative) values of λ. By applying the reductive perturbation method, we derive the equation governing the dynamics of the modulated waves in the system. This equation is the well-known nonlinear Schrödinger equation extended by a linear term proportional to a hybrid parameter σ, i.e., a dissipation or amplification coefficient. Based on this parameter, we successfully demonstrate the hybrid behavior (dissipation and amplification) of the system. The exact and approximate solitary wave solutions of the obtained equation are derived, and the effects of the coefficient σ on the characteristic parameters of these waves are investigated. Using the analytical solutions found, we show numerically that the waves that are propagated throughout the system can be dissipated, amplified, or remain stable depending on the network parameters. These results are not only in agreement with the analytical predictions, but also with the existing experimental results in the literature.
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Received: 06 January 2023
Revised: 22 February 2023
Accepted manuscript online: 15 March 2023
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PACS:
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05.45.Yv
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(Solitons)
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05.45.-a
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(Nonlinear dynamics and chaos)
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63.20.Pw
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(Localized modes)
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Corresponding Authors:
Guy Roger Deffo
E-mail: guyrdeffo@yahoo.fr
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Cite this article:
Sedric Ndoungalah, Guy Roger Deffo, Arnaud Djine, and Serge Bruno Yamgoué Dissipation and amplification management in an electrical model of microtubules: Hybrid behavior network 2023 Chin. Phys. B 32 110505
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