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Sifeu Takougang Kingni

Sifeu Takougang Kingni
Faculty of mines and petroleum industries · Department of Mechanical Petroleum and Gas Engineering

Ph.D.
Associate Professor

About

117
Publications
21,941
Reads
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1,406
Citations
Introduction
Sifeu Takougang Kingni was born in Douala, Cameroon, in 1984. He received the M.Sc. degree in Physics (speciality: Mechanics) in 2008 from the University of Yaoundé I, Cameroon. He received in 2014 a joint Ph.D. degree in Physics (speciality: Mechanics) between the Vrije Universiteit Brussel, Brussels, Belgium and the University of Yaoundé I, Cameroon. His research interests include nonlinear dynamics of semiconductor lasers, electronics circuits, optomechanics, fluid mechanics systems, synchronization of chaotic systems and secure communications.
Additional affiliations
May 2016 - November 2020
Faculty of mines and petroleum industries
Position
  • Lecturer
November 2014 - August 2018
THE UNIVERSITY OF BAMENDA
Position
  • Lecturer
March 2009 - March 2015
Independent Researcher
Independent Researcher
Position
  • Research Assistant
Education
March 2009 - June 2014
University of Yaoundé I, Cameroon and Vrije Universiteit Brussel
Field of study
  • Physics
March 2008
University of Yaounde I, Cameroon, Faculty of Physics, Department of Physics
Field of study
  • Physics

Publications

Publications (117)
Article
Megastability and coexisting attractors between periodic and self-excited chaotic attractors in the Josephson junction snap oscillator (JJSO) are reported in this paper. Two different cases are considered for this study. In one case, the JJSO is driven by a direct current (DC) whereas in the other case, it is driven by an alternative current (AC)....
Article
Full-text available
The dynamical behaviors of the proposed autonomous jerk oscillator with sine nonlinearity (AJOSN) and its application to secure s-EMG (Surface ElectroMyoGraphic) data are discussed in this paper. The AJOSN has two or no-equilibrium points and the stability of the two equilibrium points shows that one of the equilibrium points is stable while the ot...
Article
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Trace metal pollution in surface sediments is of special concern given the potential dangers to human health and aquatic life. In the present study, the spatial variability of trace metals (Fe, Mn, Cr, Ni, Cu, Zn and Pb) in surface sediments along the Lom River in the gold mining area of Gankombol (Adamawa Cameroon) is assessed using geostatistical...
Article
The dynamical behavior of a smooth Chua's circuit based on state-controlled cellular neural network (SC-CNN) of three cells is proposed and investigated in this paper. The proposed circuit gives the possibility to observe reeking phenomena as the bistability and the coexistence of periodic and chaotic attractors also called multistability. Besides...
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This issue is dedicated to the memory of Prof. Tenreiro Machado. https://dergipark.org.tr/en/pub/chaos/issue/64884
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The dynamical analysis, field programmable gate array (FPGA) implementation and image encryption of a linear piecewiseresistive-capacitive-inductive shunted Josephson junction (LPRCISJJ) model are reported in this paper. The numerical simulations of LPRCISJJ model reveal the existence of periodic attractors, bistable periodic attractors, antimonoto...
Article
This paper discusses the theoretical analysis and microcontroller implementation of resistive–capacitive shunted Josephson junction (JJ) with unharmonic current-phase relation. The rate equations describing the system under study exhibit no, two, or four equilibrium points and their stability are investigated.The presence of Pitchfork bifurcation d...
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Chaos Theory and Applications (March 2022 - Volume 4 - Issue 1) https://dergipark.org.tr/en/pub/chaos/issue/63571 ----------- 1) Jun MA. "Chaos Theory and Applications:The Physical Evidence, Mechanism are Important in Chaotic Systems. " 2) Burak ARICIOĞLU, Sezgin KAÇAR. "Circuit Implementation and PRNG Applications of Time Delayed Lorenz System....
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Most of the simple Josephson junction (JJ) based circuits with chaotic behavior found in the literature are nonautonomous. Hyperchaotic JJ-based circuits are often either driven by an external force or result from coupling chaotic circuits. An autonomous simple circuit based on Josephson junction active element (JJ), with exactly three physical ene...
Article
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The field programmable gate array (FPGA) implementation of the nonlinear resistor-capacitor-inductor shunted Josephson junction (NRCISJJ) model and its application to sEMG (Surface ElectroMyoGraphic) signal encryption through image encrypted technique are reported in this study. Thanks to the numerical simulations and FPGA implementation of the NRC...
Preprint
This paper is devoted to the mathematical modelling and analyzing of the distribution of Pb ²⁺ ion concentration along the Lom River (Adamawa-Cameroon) from the gold mining sites of Wakaso to Djouzami. The one-dimensional advection-dispersion-sorption equation is used to describe the transport of this ion. The Laplace transform technique is applied...
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In the present study, the transport of heavy metals along the Lom River in the gold mining site of Gankombol (Adamawa Cameroon) is modelled and analysed. Water samples are systematically collected and characterized to know the concentrations of heavy metals (Pb, As, Cd and Hg). The modelling of the transport of these heavy metals in the surface wat...
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The dynamical behavior of a single and network of Josephson junction (JJ) model with cosine interference term (CIT) is explored in this paper. The rate-equations describing a single JJ model with CIT have no or two equilibrium points as a function of direct current (DC). The stability of two equilibrium points reveals that one of the equilibrium po...
Article
The dynamical features and the digital implementation of a microcontroller Josephson junction neuron model driven by a thermal signal is investigated in this paper. By designing the system above as a thermistor in series to some variant voltage source connected in parallel to a resistor and a capacitor, we show that the hysteresis loop appearances...
Article
The analysis and field programmable gate arrays (FPGA) implementation of a resistive-capacitive-inductive shunted Josephson junction (RCLSJJ) circuit with topologically nontrivial barrier (TNB) are investigated in this paper. The stability analysis of the equilibrium points reveals the presence of a Pitchfork bifurcation. RCLSJJ circuit with TNB ca...
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Chaos Theory and Applications (November 2021 - Volume 3 - Issue 2) https://dergipark.org.tr/en/pub/chaos/issue/58077
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The controls of chaotic and coexisting attractors and collective dynamics in linear resistive-capacitive-inductive shunted Josephson junction (LRCISJJ) model are investigated in this paper. A single feedback controller is designed to control chaos found in the LRCISJJ model. Analytical calculations and numerical simulations are carried out to show...
Article
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An electronic implementation of a novel Wien bridge oscillation with antiparallel diodes is proposed in this paper. As a result, we show by using classical nonlinear dynamic tools like bifurcation diagrams, Lyapunov exponent plots, phase portraits, power density spectra graphs, time series, and basin of attraction that the oscillator transition to...
Preprint
This paper investigates the dynamical behavior of a single and a network of current modulated edge emitting semiconductor lasers (CMEESLs). Different dynamical behaviors of CMEESL are revealed in two-dimensional parameters space by varying the amplitude and frequency of modulation. Single CMEESL exhibits periodic pulse packages followed by period-d...
Article
The dynamical analysis of a quarter car suspension based on the Kelvin-Voigt viscoelastic model with fractional order derivative is analytically and numerically studied in this paper. Depending on the non-dimensional quadratic stiffness parameter, the potential configuration associated with the system under study is possible to obtain monostable an...
Article
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Theoretical analysis and microcontroller implementation of linear resistor-capacitor shunted Josephson junction (LRCSJJ) model are studied in this paper. The rate-equations describing the LRCSJJ model has no or two equilibrium points. One of the equilibrium points is a saddle node and the other one is a stable node. The hysteresis loop of current-v...
Article
Dynamical analysis and modified function projective synchronization (MFPS) of integer and fractional-order Morse jerk oscillator are investigated in this paper. Integerorder Morse jerk oscillator generates periodic behaviors, periodic spiking and two different shapes of chaotic attractors. The periodic spiking and chaotic behaviors obtained during...
Article
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The microcontroller implementation, chaos control, synchronization, and antisynchronization of the nonlinear resistive-capacitive-inductive shunted Josephson junction (NRCISJJ) model are reported in this paper. The dynamical behavior of the NRCISJJ model is performed using phase portraits, and time series. The numerical simulation results reveal th...
Chapter
This chapter proposes a memristor Helmholtz (MH) oscillator which is designed by adding an ideal and active flux-controlled memristor in the circuit of an autonomous Helmholtz jerk oscillator. The dynamical behaviour of the MH oscillator is investigated in terms of equilibria states and their stabilities, bifurcation diagrams, Lyapunov exponents, p...
Article
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The impact of gold mining activities on the Lom River in Wakaso (Adamawa Cameroon) and the potential of Moringa Oleifera seeds for the removal of pollutants from wastewater is evaluated on this paper. Water samples were collected for physicochemical (hydrogen potential, electrical conductivity, turbidity and suspended solids) and chemical (major io...
Article
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The electronic implementation, synchronization, and control of hyperchaos in a five-dimensional (5D) autonomous homopolar disc dynamo are investigated in this paper. The hyperchaotic behavior is found numerically using phase portraits and time series in 5D autonomous homopolar disc dynamo is ascertained on Orcad-PSpice software. The synchroniz...
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Chaos Theory and Applications (June 2021 - Volume 3 - Issue 1) https://dergipark.org.tr/tr/pub/chaos/issue/56378
Chapter
An absolute memristor Van der Pol–Duffing circuit is proposed and analyzed in this paper. The proposed circuit is described by a four-dimensional autonomous system with a line equilibrium point. The stability of the line equilibrium point of this system is analyzed. With a suitable choice of the parameters, the proposed circuit can exhibit extreme...
Article
The analytical and numerical analyses as well as prediction with artificial neural network (ANN) for chaos-based artificial intelligence applications of quantum dot light emitting diode (QDLED) are investigated in this paper. The system of equations describing QDLED has three, or one equilibrium points depending on the capture rate from wetting lay...
Article
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This paper reports on the numerical analysis, control of coexisting attractors and microcontroller-based design of current modulated edge emitting semiconductor laser (CMEESL). The stability of equilibrium points of solitary edge emitting semiconductor laser found is investigated. By varying the amplitude of modulation current density, CMEESL displ...
Preprint
Full-text available
This paper reports on the numerical analysis, control of coexisting attractors and microcontroller-based design of current modulated edge emitting semiconductor laser (CMEESL). The stability of equilibrium points of solitary edge emitting semiconductor laser found is investigated. By varying the amplitude of modulation current density, CMEESL displ...
Article
In this paper, an autonomous Morse jerk oscillator which is designed by converting an autonomous two-dimensional Morse oscillator to a jerk oscillator, is analysed. The stability of its unique equilibrium point reveals the existence of Hopf bifurcation. Periodic and chaotic oscillations, antimonotonicity, chaotic bubbles and coexisting attractors a...
Article
Genesio–Tesi system with Chua’s diode based on state-controlled cellular neural network is proposed and investigated in this paper. The proposed system can exhibit period doubling bifurcation, periodic attractors, chaotic attractors, multistability and antimonotonicity phenomenon. The results found during numerical simulations are verified in the l...
Article
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This paper evaluates the impact of gold mining activity on surface water quality in the locality of Batouri (East, Cameroon). Water samples were collected from five separate points. These water samples were characterized from a physicochemical point of view. This characterization consisted to determine the hydrogen potential, the alkalinity, the el...
Chapter
This chapter proposes a memristor Helmholtz (MH) oscillator which is designed by adding an ideal and active flux-controlled memristor in the circuit of an autonomous Helmholtz jerk oscillator. The dynamical behavior of the MH oscillator is investigated in terms of equilibria states and their stabilities, bifurcation diagrams, Lyapunov exponents, ph...
Article
Control of coexisting attractors and chaos in brushless direct current motor (BLDCM) is investigated in this paper. Using a weak harmonic modulation of a parameter of the BLDCM, the coexisting attractors between chaotic and period-1-oscillations are destroyed and transformed to period-1-oscillations. Moreover, two single controllers are designed to...
Article
Full-text available
This paper firstly evaluates the influence of semi-mechanized artisanal gold mining in Djouzami (Adamawa, Cameroon) on the water quality of the site. Samples of runoff, stagnant water and sediments are collected in the study area. These waters are characterized from a physical (pH, electrical conductivity, turbidity and suspended solids) and chemic...
Cover Page
Full-text available
Chaos Theory and Applications (November 2020-Volume 2-Issue 2) https://dergipark.org.tr/tr/pub/chaos/issue/54264
Article
Dynamical analysis and chaos control of a synchronous reluctance motor (SynRM) with a constant and sinusoidal load torque are studied in this paper. The SynRM with load vibration perturbation exhibits pitchfork bifurcation, steady state behavior, double-scroll chaotic attractor and coexistence of attractors between steady state behavior and double-...
Article
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This paper, firstly, characterizes the mining waste of the Betare-Oya gold area (East Cameroon). Surface waters are sampled and characterized physically (pH, electrical conductivity, turbidity, and suspended solids) and chemically by the determination of trace metals (Cu, Zn, Ni, Mn, Fe, Cr, As, and Pb). The concentrations of heavy metals in sedime...
Article
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The analysis, electronic validation and chaos control of nonsmooth-air-gap brushless direct current motor (BLDCM) running under no loading conditions are investigated in this article. The nonsmooth-air-gap BLDCM is described by a system of three-dimensional autonomous equations. The stability of equilibrium points found is studied. Different dynami...
Article
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Josephson junction (JJ) with topologically nontrivial barrier is analytically and numerically analyzed in this paper. This system has four, two, or no equilibrium points depending on the external direct current (DC) source and the fractional parameter. The existence of pitchfork bifurcation is established during the stability analysis of the equili...
Article
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A Jerk circuit with two diodes mounted in parallel is formulated and analyzed in this paper. The system describing the proposed jerk circuit exhibits two or no equilibrium points as function of the system parameters. Studies on equilibrium points stability show the appearance of Hopf bifurcation. The proposed jerk circuit exhibits one scroll chaoti...
Article
In this paper a five-dimensional (5-D) autonomous system with offset boosting is constructed by modifying the well-known three-dimensional autonomous Liu and Chen system. The equilibrium points of the proposed 5-D autonomous system are found and its stability analysis is investigated. The proposed system displays Hopf bifurcation, periodic attracto...
Article
A chaotic simple jerk system (SJS) that belongs to systems with self-excited and hidden attractors is introduced in this paper. The dynamics of the proposed SJS is analytically and numerically investigated. Interestingly, the influence of the time delay on the proposed chaotic SJS is studied. In addition, the physical existence of self-excited and...
Article
This paper numerically investigates the synchronization and the chaos-based encryption using unidirectional coupled chaotic semiconductor ring lasers (SRLs) with direct modulation. A good quality of synchronization and transmission of messages are realized for specific choice of system parameters. The mismatches of typical internal SRLs parameters...
Article
Full-text available
This paperfirstly evaluates the influence of semi-mechanized artisanal gold mining in Djouzami (Adamawa, Cameroon) on the water quality of the site.Samples of runoff, stagnant water and sediments are collected in the study area. These waters are characterized from a physical (pH, electrical conductivity, turbidity and suspended solids) and chemical...
Article
Purpose The purpose of this paper is to investigate coexisting attractors, chaos control and synchronization in a self-exciting homopolar dynamo system in this paper. Design/methodology/approach Two single controllers are designed and added to the proposed 3D autonomous chaotic system, and its stability at zero equilibrium point is guaranteed by a...
Article
Full-text available
An autonomous passive–active integrators oscillator with anti-parallel diodes is proposed and analysed in this paper. It consists of anti-parallel diodes and two main blocks: A second-order passive RLC integrator and a first-order active RC integrator. The existence of two Hopf bifurcations is established during the stability analysis of the unique...
Article
This paper studies the dynamical behavior of an optomechanical system operating in red-detuned. It is shown that this optomechanical system can exibit antimonotonicity, coexisting attractors, periodic and chaotic bubble behaviors for specific choice of the parameters. In the resolved sideband regime and when the time scale of the mechanical oscilla...
Article
In this paper, an integer- and fractional-order form of a four-dimensional (4-D) chaotic system with hidden attractors is investigated using theoretical/numerical and analogue methods. The system is constructed not through the extension of a three-dimensional existing nonlinear system as in current approaches, but by modifying the well-known two-di...
Article
The dynamical characteristics and its applications to random number generator of a fractal Josephson junction with unharmonic current-phase relation (FJJUCPR) described by a linear resistivecapacitive- inductance shunted junction (LRCLSJ) model are investigated in this paper. The dependence of the equilibrium points of the system to the external cu...
Article
Full-text available
The aim of this paper is to address the problem of the electronic implementation of chaos control using a single controller and synchronization of chaotic permanent magnet synchronous motor (PMSM). Firstly, different dynamical behaviors of the PMSM including steady state, periodic and chaotic behaviors are found using numerical methods such as two-...
Conference Paper
Chaos control via a single controller of chaotic permanent magnet synchronous motor (PMSM) is studied in this paper. By varying the parameters of the PMSM, different dynamical behaviors including steady state, periodic and chaotic behaviors are found. Two single controllers are designed and added to the chaotic PMSM and its stability at zero equili...
Conference Paper
In the literature, Josephson junction (JJ) devices can be described by a resistive-capacitive shunted junction or resistive-capacitive-inductive shunted junction. Firstly, a fractal JJ with unharmonic current-phase relation (FJJUCPR) described by a linear resistive-capacitive shunted junction (LRCSJ) model is analytically and numerically analyzed i...
Conference Paper
The chaos control of indirect field oriented control (IFOC) of 3-phase induction motor is investigated in this work. Two auto-feedback controllers: An adaptive controller and a sliding mode controller are designed to suppress chaos in IFOC of 3-phase induction motor. The adaptive auto-feedback controller gave the better results by comparison to sli...
Article
In this paper, the simplest chaotic oscillator with fractional-order-memristor component (SCOF) is proposed. Dynamical characteristics of the proposed chaotic oscillator are investigated both analytically and numerically. The results indicate that the proposed chaotic oscillator possesses novel dynamical characteristics: double-scroll chaotic attra...