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Journal articles on the topic 'Sprott J System; Sprott K System'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Sundarapandian, Vaidyanathan. "GLOBAL CHAOS SYNCHRONIZATION OF UNCERTAIN SPROTT J AND K SYSTEMS BY ADAPTIVE CONTROL." International Journal of Instrumentation and Control Systems (IJICS) 1, no. 2 (2019): 1/17. https://doi.org/10.5281/zenodo.3369494.

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<strong>ABSTRACT</strong> In this paper, we apply adaptive control method to derive new results for the global chaos synchronization of identical Sprott J systems (Sprott, 1994), identical Sprott K systems (Sprott, 1994) and non-identical Sprott J and K systems. Our results are derived for the general case when the parameters of both master and slave systems are unknown and adaptive synchronizing schemes have been derived using the estimates of parameters for both master and slave systems. Our adaptive synchronization schemes derived in this paper are established using Lyapunov stability theor

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2

Sundarapandian, Vaidyanathan. "ANALYSIS, CONTROL AND SYNCHRONIZATION OF SPROTT-K SYSTEM WITH UNKNOWN PARAMETERS." International Journal of Soft Computing, Mathematics and Control (IJSCMC) 1, no. 1 (2012): 01–14. https://doi.org/10.1234/ijscmc.2012.9201.

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This paper investigates the problem of designing an adaptive controller and synchronizer for the new Sprott-K chaotic system (1994), when the system parameters are unknown. Sprott-K system is one of the important models of 3-dimensional chaotic systems. First, we construct an adaptive controller to stabilize the Sprott-K chaotic system to its unstable equilibrium at the origin. Then we construct an adaptive synchronizer to achieve global chaos synchronization of the identical Sprott-K chaotic systems with unknown parameters. Lyapunov stability theory and the adaptive control theory have been a

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3

Islam, Mitul, Nurul Islam, and Svetoslav Nikolov. "Adaptive Control and Synchronization of Sprott J System With Estimation Of Fully Unknown Parameters." Journal of Theoretical and Applied Mechanics 45, no. 2 (2015): 45–58. http://dx.doi.org/10.1515/jtam-2015-0010.

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Abstract This communication develops an adaptive scheme for control and synchronization of Sprott J system with fully unknown parameters. The scheme provides an elegant strategy of designing estimators for identification of the unknown parameters of the underlying dynamical system. Adaptive control and update laws are proposed to globally stabilize the chaotic Sprott J system. A pair of identical Sprott J systems with un- known parameters are globally synchronized with the help of adaptive control and parameter update laws. The results are established using LaSalle invariance principle, which

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4

Vaidyanathan, Sundarapandian. "Active Controller Design for the Output Regulation of Sprott-K Chaotic System." Computer Science & Engineering: An International Journal 2, no. 3 (2012): 67–77. http://dx.doi.org/10.5121/cseij.2012.2306.

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5

Gokyildirim, Abdullah. "Circuit Realization of the Fractional-Order Sprott K Chaotic System with Standard Components." Fractal and Fractional 7, no. 6 (2023): 470. http://dx.doi.org/10.3390/fractalfract7060470.

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Interest in studies on fractional calculus and its applications has greatly increased in recent years. Fractional-order analysis has the potential to enhance the dynamic structure of chaotic systems. This study presents the implementation of a lower-order fractional electronic circuit using standard components for the Sprott K system. To our knowledge, there are no chaotic circuit realizations in the literature where the value of a fractional-order parameter is approximately 0.8, making this study pioneering in this aspect. Additionally, various numerical analyses of the system are conducted,

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6

Gokyildirim, Abdullah, Serdar Çiçek, Haris Calgan, and Akif Akgul. "Fractional-order Sprott K chaotic system and its application to biometric iris image encryption." Computers in Biology and Medicine 179 (September 2024): 108864. http://dx.doi.org/10.1016/j.compbiomed.2024.108864.

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7

Xie, Zizhao, Jingru Sun, Yiping Tang, Xin Tang, Oluyomi Simpson, and Yichuang Sun. "A K-SVD Based Compressive Sensing Method for Visual Chaotic Image Encryption." Mathematics 11, no. 7 (2023): 1658. http://dx.doi.org/10.3390/math11071658.

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The visually secure image encryption scheme is an effective image encryption method, which embeds an encrypted image into a visual image to realize a secure and secret image transfer. This paper proposes a merging compression and encryption chaos image visual encryption scheme. First, a dictionary matrix D is constructed with the plain image by the K-SVD algorithm, which can encrypt the image while sparsing. Second, an improved Zeraoulia-Sprott chaotic map and logistic map are employed to generate three S-Boxes, which are used to complete scrambling, diffusion, and embedding operations. The se

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8

Sagban,, L. J., and A. A. Shukur,. "Dynamics and Adaptive Control of a Novel 5D Hyperchaotic System: Either Hidden Attractor or Self-excited with Unusual Nature of Unstable Equilibria." Malaysian Journal of Mathematical Sciences 18, no. 3 (2024): 675–96. http://dx.doi.org/10.47836/mjms.18.3.14.

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In 2020, J. Sprott proposed a new three dimensional chaotic system with special features such like 1) dissipative and time-reversible; 2) no equilibrium point; 3) lien of initial conditions goes to the attractor. We observed that an extension of the so-called Sprott's 2020 system to four dimensional system with complex dynamics showed either chaotic or hyperchaotic with unbounded orbits. In this paper, a novel five dimensional hyperchaotic system based on Sprott's 2020 system has been proposed. The proposed system shows complex dynamics like hyperchaotic. The proposed system can be classified

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9

Sánchez, Rubén Portes, Rafael Manuel Navarro Barragán, Julio Calleja-González, Miguel Ángel Gómez-Ruano, and Sergio Lorenzo Jiménez Sáiz. "Physical Persistency across Game Quarters and during Consecutive Games in Elite Junior Basketball Players." International Journal of Environmental Research and Public Health 19, no. 9 (2022): 5658. http://dx.doi.org/10.3390/ijerph19095658.

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Given the intermittent nature of basketball and the different demands that occur during playing time that are specific to every level of competition, the ratio of accelerations/decelerations and the intensity level across quarters were evaluated in female elite junior basketball players (n = 48; age: 16.8 ± 0.7 years; height: 1.76 ± 0.07 cm; body mass: 67.2 ± 6.2 kg). The following variables were analyzed to determine physical persistency across game quarters:(a) total distance covered (m), (b) high-intensity running (HIR) (14–21 km·h−1) distance covered (m), (c) sprint (21–30 km·h−1) distance

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10

Mulla, Salim Musa. "Vitiligo – Study In view of familial occurence." International Journal of Cosmetics and Dermatology 1, no. 1 (2021): 1–6. http://dx.doi.org/10.55124/ijcd.v1i1.90.

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Vitiligo is a chronic skin disease that causes loss of pigment in the skin. It is caused by a combination of auto-immune, genetic, and environmental factors. This clinical study was carried out to find out the familial tendency in patients of vitiligo. Literary review & clinical study in 60 patients of vitiligo done. The study included the detailed family history with pedigree analysis in patients under study. The conclusion drawn from the study is that the familial occurrence of vitiligo in the studied population is 26.66 % .Younger age group up to 20 Yrs. is predominantly affected.

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11

Sundarapandian, Vaidyanathan. "GLOBAL CHAOS SYNCHRONIZATION OF UNCERTAIN SPROTT J AND K SYSTEMS BY ADAPTIVE CONTROL." October 9, 2020. https://doi.org/10.5281/zenodo.4074375.

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In this paper, we apply adaptive control method to derive new results for the global chaos synchronization of identical Sprott J systems (Sprott, 1994), identical Sprott K systems (Sprott, 1994) and non-identical Sprott J and K systems. Our results are derived for the general case when the parameters of both master and slave systems are unknown and adaptive synchronizing schemes have been derived using the estimates of parameters for both master and slave systems. Our adaptive synchronization schemes derived in this paper are established using Lyapunov stability theory. Since the Lyapunov expo

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12

Sundarapandian, Vaidyanathan. "OUTPUT REGULATION OF SPROTT-I CHAOTIC SYSTEM BY STATE FEEDBACK CONTROL." June 29, 2012. https://doi.org/10.5121/ijbb.2012.2203.

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International Journal on Bioinformatics & Biosciences (IJBB) Vol.2, No.2, June 2012 DOI : 10.5121/ijbb.2012.2203 29 OUTPUT REGULATION OF SPROTT-I CHAOTIC SYSTEM BY STATE FEEDBACK CONTROL Sundarapandian Vaidyanathan1 1Research and Development Centre, Vel Tech Dr. RR & Dr. SR Technical University Avadi, Chennai-600 062, Tamil Nadu, INDIA sundarvtu@gmail.com ABSTRACT This paper solves the output regulation problem of Sprott-I chaotic system, which is one of the classical chaotic systems discovered by J.C. Sprott (1994). Explicitly, for the constant tracking problem, new state feedback con

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13

Calgan, Haris, Abdullah Gokyildirim, Erdem Ilten, and Metin Demirtas. "Classification of fractional-order chaotic systems using deep learning methods." European Physical Journal Special Topics, April 21, 2025. https://doi.org/10.1140/epjs/s11734-025-01604-0.

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Abstract Recent developments in fractional calculus reveal that fractional operators enable the emergence of new chaotic behaviors that cannot be observed in integer-order systems. When the characteristics of chaotic systems are combined with fractional calculus, the complexity and unpredictability of the system are further enhanced. This study examines two simple yet topologically similar six-term chaotic systems, namely Sprott H and Sprott K, to explore their application in deep learning within the framework of fractional calculus. Through the analysis of time series data, phase portraits, L

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14

Kiiskilä, Jukka, Jukka S. Moilanen, Laura Kytövuori, Anna-Kaisa Niemi, and Kari Majamaa. "Analysis of functional variants in mitochondrial DNA of Finnish athletes." BMC Genomics 20, no. 1 (2019). http://dx.doi.org/10.1186/s12864-019-6171-6.

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Abstract Background We have previously reported on paucity of mitochondrial DNA (mtDNA) haplogroups J and K among Finnish endurance athletes. Here we aimed to further explore differences in mtDNA variants between elite endurance and sprint athletes. For this purpose, we determined the rate of functional variants and the mutational load in mtDNA of Finnish athletes (n = 141) and controls (n = 77) and determined the sequence variation in haplogroups. Results The distribution of rare and common functional variants differed between endurance athletes, sprint athletes and the controls (p = 0.04) so

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15

Ray, Anirban, A. RoyChowdhury, and Sankar Basak. "Effect of Noise on Generalized Synchronization: An Experimental Perspective." Journal of Computational and Nonlinear Dynamics 8, no. 3 (2012). http://dx.doi.org/10.1115/1.4007445.

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Generalized synchronization between two different nonlinear systems under influence of noise is studied with the help of an electronic circuit and numerical experiment. In the present case, we have studied the phenomena of generalized synchronization between the Lorenz system and another nonlinear system (modified Lorenz) proposed in Ray et al. (2011, “On the Study of Chaotic Systems With Non-Horseshoe Template,” Frontier in the Study of Chaotic Dynamical Systems With Open Problems, Vol. 16, E. Zeraoulia and J. C. Sprott, eds., World Scientific, Singapore, pp. 85–103) from the perspective of e

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16

Zhao, Guangzhe, He Zhao, Yunzhen Zhang, and Xinlei An. "A New Memristive System with Extreme Multistability and Hidden Chaotic Attractors and with Application to Image Encryption." International Journal of Bifurcation and Chaos 34, no. 01 (2024). http://dx.doi.org/10.1142/s021812742450010x.

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Chaotic systems have proven highly beneficial in engineering applications. Pseudo-random numbers produced by chaotic systems have been used for secure communication, notably image encryption. Specific characteristics can increase the chaotic behavior of the system by adding complexity and nonlinearity. The three most well-known characteristics are memristive properties, multistability (coexisting attractors), and hidden attractors. These characteristics strengthen the produced time series’ unpredictability and randomness, strengthening an encryption algorithm’s resistance to many attacks. This

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17

Prof., Aashish Jagneet, Sairaj Sonawane, Abhishek Prajapati, Hitesh Patil, and Pankaj Tile. "GeoWorkTrack." GeoWorkTrack, October 16, 2024. https://doi.org/10.5281/zenodo.13938745.

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<strong>Article Title</strong>"GeoWorkTrack " <strong>Pankaj Tile,Abhishek Prajapati,Hitesh Patil,Sairaj Sonawane</strong>1 Department of Computer Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India2 Department of Computer Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India 3 Department of Computer Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India 4 Department of Computer Engineering, Sandip Institute of Technology and Research Centre, Nashik, Maharashtra, India Department

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