Results 21 to 30 of about 94,144 (269)

Efficient Image Encryption Scheme Using Novel 1D Multiparametric Dynamical Tent Map and Parallel Computing

Mathematics, 2023
In order to ensure reliable and secure image exchange, chaotic systems are often considered for their good performance in information security. In this work, we first propose an extended version of a chaotic tent map (TM)—the multiparametric 1D tent map (
Achraf Daoui, Mohamed Yamni, Samia Allaoua Chelloug, Mudasir Ahmad Wani, Ahmed A. Abd El-Latif   +4 more
doaj   +1 more source

Efficient control of accelerator maps [PDF]

, 2011
Recently, the Hamiltonian Control Theory was used in [Boreux et al.] to increase the dynamic aperture of a ring particle accelerator having a localized thin sextupole magnet. In this letter, these results are extended by proving that a simplified version
Boreux, Jehan, Carletti, Timoteo, Papaphilippou, Yannis, Skokos, Charalampos, Vittot, Michel   +4 more
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A novel investigation of dynamical behavior to describe nonlinear wave motion in (3+1)-dimensions

Results in Physics, 2023
This study focuses on the extended (3+1)-dimensional Sakovich equation, which is utilized for the description of nonlinear wave motion and manifests increased dispersion and nonlinear effects within the realm of nonlinear dynamics. The Lie symmetries are
Miguel Vivas-Cortez, Nauman Raza, Syeda Sarwat Kazmi, Younes Chahlaoui, Ghada Ali Basendwah   +4 more
doaj   +1 more source

Research on Grid Scroll Chaotic Extended Sequence Algorithm and Its Circuit Implementation for F-OFDM System

Complexity, 2019
High peak-to-average power ratio (PAPR), a main problem of 5G Filtered-Orthogonal Frequency Division Multiplexing (F-OFDM) system, seriously affects the system’s transmission efficiency.
Yingjie Ma, Ya Li, Geng Zhao, Ping Zeng, Yatao Yang   +4 more
doaj   +1 more source

Session-Dependent Token-Based Payload Enciphering Scheme for Integrity Enhancements in Wireless Networks

Journal of Sensor and Actuator Networks, 2022
Wireless networks have continued to evolve to offer connectivity between users and smart devices such as drones and wireless sensor nodes. In this environment, insecure public channels are deployed to link the users to their remote smart devices. Some of
Zaid Ameen Abduljabbar, Vincent Omollo Nyangaresi, Mustafa A. Al Sibahee, Mudhafar Jalil Jassim Ghrabat, Junchao Ma, Iman Qays Abduljaleel, Abdulla J. Y. Aldarwish   +6 more
doaj   +1 more source

Extended Harmonic Map Equations and the Chaotic Soliton Solutions

, 2016
In this paper, the theory of harmonic maps is extended. The soliton or traveling wave solutions of Euler's equations of the extended harmonic maps are studied. In certain cases, the chaotic behaviors of these partial equations can be found for the particular case of the metrics and the potential functions of the extended harmonic equations.
Ren, Gang, Duan, Yi-Shi
openaire   +2 more sources

Low-energy quasiparticle excitations in dirty d-wave superconductors and the Bogoliubov-de Gennes kicked rotator [PDF]

, 2003
We investigate the quasiparticle density of states in disordered d-wave superconductors. By constructing a quantum map describing the quasiparticle dynamics in such a medium, we explore deviations of the density of states from its universal form ...
A. Altland, A. Altland, A. Altland, A. Ghosal, A. Ossipov, A. Yazdani, A.A. Nerseyan, A.G. Yashenkin, B. Huckestein, C. Chamon, C. Pépin, F.M. Izrailev, H. Walter, İ. Adagideli, İ. Adagideli, İ. Adagideli, I.L. Aleiner, J.-X. Zhu, K. Ziegler, M. Bocquet, M.C. Goorden, P.J. Hirschfeld, P.J. Turner, Ph. Jacquod, Ph. Jacquod, R. Ketzmerick, S. Fishman, T. Senthil, T. Senthil, T.P. Eggarter, W.A. Atkinson, W.A. Atkinson   +31 more
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Non-transitive maps in phase synchronization

, 2005
Concepts from the Ergodic Theory are used to describe the existence of non-transitive maps in attractors of phase synchronous chaotic systems. It is shown that for a class of phase-coherent systems, e.g.
Banks, Baptista, Baptista, Baptista, Baptista, Baptista, Blasius, Boccaletti, De Grauwe, Fell, Fischer, I.L. Caldas, Ivanchenko, J. Kurths, J.C. Sartorelli, Josić, Josić, Kiss, Leyva, M.S. Baptista, Mormann, Osipov, Parlitz, Pikovsky, Pikovsky, Pinto, Rosenblum, Shabunin, Strogatz, T. Pereira, Ticos, Wiggins   +31 more
core   +2 more sources

Chaotic synchronizations of spatially extended systems as non-equilibrium phase transitions

, 2008
Two replicas of spatially extended chaotic systems synchronize to a common spatio-temporal chaotic state when coupled above a critical strength. As a prototype of each single spatio-temporal chaotic system a lattice of maps interacting via power-law ...
A. Torcini, C. J. Tessone, Grassberger P., Grassberger P., Hinrichsen H., Kaneko K., M. Cencini, Mollison D., Muñoz M. A., Peskin C.   +9 more
core   +1 more source

Validity of numerical trajectories in the synchronization transition of complex systems [PDF]

, 2003
We investigate the relationship between the loss of synchronization and the onset of shadowing breakdown {\it via} unstable dimension variability in complex systems.
A. M. Batista, A. Pikowsky, A.M. Batista, C. Grebogi, C. Grebogi, C. Grebogi, C.S. Zhou, D.V. Anosov, E. Barreto, E. Ott, E. Ott, E. Ott, E. Rosa, Jr., E.J. Kostelich, J. Kurths, N. Platt, N. Platt, R. Abraham, R. Bowen, R. L. Viana, R.L. Viana, R.L. Viana, S. Boccaletti, S. E. de S. Pinto, S. R. Lopes, S.E. de, S.P. Dawson, T. Sauer, T.D. Sauer, Y.-C. Lai, Y.-C. Lai, Y.-C. Lai   +31 more
core   +1 more source