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541
Spatiotemporal chaotic one-way Hash function construction based on coupled tent maps
Published 2007-01-01“…A novel coupled tent maps-based spatiotemporal chaotic cryptographic Hash function was proposed.Compared with the discrete tent map,the coupled discrete tent spatiotemporal chaotic maps have longer computer-realization-period,nearly uniform distribution and desired diffusion and confusion properties.Based on the coupled discrete tent spatiotemporal chaotic maps,a cryptographic Hashing function is constructed to generate 128-bit Hash value from a message with arbitrary length.The approach uses the initial value of coupled discrete tent chaotic dynamical system iteration as the secret key.The key space is very large.There is a high sensitivity and complex and strongly nonlinear coupling relation between the Hash value and the corresponding message and secret key.Theoretic analysis and simulation results are shown that the approach possess not only extremely high security in comparison with earlier chaotic Hash functions,but also the high execution speed.Therefore,the approach can satisfy all the performance requirements of Hash function,such as one-way,key sensitivity and collision resistance.…”
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542
Entanglement dynamics in 2d HCFTs on the curved background: the case of q-Möbius Hamiltonian
Published 2024-12-01“…We discussed the low temperature system can be regarded as the dynamical system induced by the multi-joining quenches. …”
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543
The Coupled Orbit-Attitude Dynamics and Control of Electric Sail in Displaced Solar Orbits
Published 2017-01-01“…In this paper, the equilibrium point of the coupled dynamical system in displaced orbit is obtained, and its stability is analyzed through a linearization. …”
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544
STABILITY RESEARCH OF FLOW-INDUCED VIBRATION OF HYBRID RIGID-FLEXIBLE PIPE CONVEYING FLUID (MT)
Published 2023-01-01“…An articulated pipe composed of a flexible pipe and a rigid pipe is a typical hybrid rigid-flexible dynamical system involving flow-induced vibrations. Based on Hamilton′s principle, the governing equations of motion of the hybrid rigid-flexible pipe system were established. …”
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545
Dynamic Processes, Fixed Points, Endpoints, Asymmetric Structures, and Investigations Related to Caristi, Nadler, and Banach in Uniform Spaces
Published 2015-01-01“…One of the main key ideas in this paper is the application of our fixed point and endpoint version of Caristi type theorem for dissipative set-valued dynamic systems without lower semicontinuous entropies in uniform spaces with structures determined by J-families. …”
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546
The local Bifurcation of Dynamic Behavior of Predator-Prey System with Refuge for both Species
Published 2025-01-01“… The main purpose of this paper is to study a predator – prey dynamical system consisting of three species prey, specialized predator and generalist predator namely H (t), I (t) and J (t) respectively, w food web and refuge for the prey and specialized predator population. …”
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547
Abundant Coexisting Multiple Attractors’ Behaviors in Three-Dimensional Sine Chaotic System
Published 2019-01-01“…This paper presents a novel and simple three-dimensional (3-D) chaotic system by introducing two sine nonlinearities into a simple 3-D linear dynamical system. The presented sine system possesses nine equilibrium points consisting of five index-2 saddle foci and four index-1 saddle foci which allow the coexistence of various types of disconnected attractors, also known as multistability. …”
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548
An Applicable Control-Relevant Method for Nonlinearity Assessment using Gap Metric
Published 2024-08-01“…In this paper, an applicable control-relevant nonlinearity assessment method is proposed for nonlinear dynamic systems. In this method, nonlinear system is decomposed to a bank of linear systems using gap metric, a smart tool for measuring the distance between two linear systems. …”
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549
Nonlinear Vibrations of FGM Cylindrical Panel with Simply Supported Edges in Air Flow
Published 2015-01-01“…Here, Galerkin’s method is employed to discretize this continuous nonlinear dynamic system to ordinary differential governing equations involving two degrees of freedom. …”
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550
THE METHODOLOGICAL POTENTIAL OF INDUSTRIAL PRODUCTION AS THE BASIS OF PROFESSIONAL TRAINING OF FUTURE SPECIALISTS
Published 2015-04-01“…The fundamental difference between training and production process from the conventional one, is that knowledge, skills, and competences are formed within the context of development of a complex and dynamic system of professional activity and thinking of the specialist. …”
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551
Analysis on Multistable Motion Characteristics of Supercavitating Vehicle
Published 2017-01-01“…The results demonstrated that, unlike the ordinary dynamic systems, a supercavitating vehicle demonstrates multistable phenomena, such as the coexistence of the stable equilibrium point and the limit cycle and the coexistence of the limit cycle and the chaotic attractor, along with the coexistence of diversified limit cycles; under fixed system parameters, as the initial condition of launching varied, the vehicle displayed various motion states; in engineering practices, the initial condition of launching could be adjusted according to the domain of attraction, in order for the vehicle motion stability to be enhanced.…”
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552
Ecosystem changes after Early Cretaceous seawater intrusion into the proto-South Atlantic Ocean
Published 2025-01-01“…Importantly, the sulfur-sequestered biomarkers reveal a dynamic system where redox-stratified and anoxic conditions were amplified along with a deepening chemocline through the marine transition.…”
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553
Modeling and Simulation of Control Actuation System with Fuzzy-PID Logic Controlled Brushless Motor Drives for Missiles Glider Applications
Published 2015-01-01“…The proposed system will realize better rise time and less overshoot while operating in extreme nonlinear dynamic system conditions. A mathematical model of BLDC motor is derived in state space form. …”
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554
Design of an Error-Based Adaptive Controller for a Flexible Robot Arm Using Dynamic Pole Motion Approach
Published 2011-01-01“…Design of an adaptive controller for complex dynamic systems is a big challenge faced by the researchers. …”
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555
Robust Tracking Control for Vehicle Lateral Dynamics with Uncertain Parameters and External Nonlinearities
Published 2014-01-01“…This paper focuses on the problem of tracking control for vehicle lateral dynamic systems and designs an adaptive robust controller (ARC) based on backstepping technology to improve vehicle handling and stability, in the presence of parameter uncertainties and external nonlinearities. …”
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556
Natural Frequencies and Modal Damping Ratios Identification of Civil Structures from Ambient Vibration Data
Published 2006-01-01“…Damping is a mechanism that dissipates vibration energy in dynamic systems and plays a key role in dynamic response prediction, vibration control as well as in structural health monitoring during service. …”
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557
Day-Ahead Crude Oil Price Forecasting Using a Novel Morphological Component Analysis Based Model
Published 2014-01-01“…As a typical nonlinear and dynamic system, the crude oil price movement is difficult to predict and its accurate forecasting remains the subject of intense research activity. …”
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558
Symmetry analysis, dynamical behavior, and conservation laws of the dual-mode nonlinear fluid model
Published 2025-01-01“…The model is transformed into a planar dynamical system via Galilean transformation, with phase portraits generated using bifurcation parameters. …”
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559
Learning Discrete-Time Uncertain Nonlinear Systems With Probabilistic Safety and Stability Constraints
Published 2022-01-01“…This paper presents a discrete-time dynamical system model learning method from demonstration while providing probabilistic guarantees on the safety and stability of the learned model. …”
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560
Approximate Super- and Sub-harmonic Response of a Multi-DOFs System with Local Cubic Nonlinearities under Resonance
Published 2012-01-01“…A multi-degree-of-freedom dynamical system with local cubic nonlinearities subjected to super/subharmonic excitation is considered in this paper. …”
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