Analysis and Control of Fractional Order Generalized Lorenz Chaotic System by Using Finite Time Synchronization by Yan Cui, Hongjun He, Guan Sun, Chenhui Lu

“…We also found that the equilibrium point generated by the fractional order system belongs to the unstable saddle point through the prediction correction method and the fractional order stability theory. …”
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Study on the Dynamic Problems of Double-Disk Rotor System Supported by Deep Groove Ball Bearing by Yang Liu, Jiyuan Han, Siyao Zhao, Qingyu Meng, Tuo Shi, Hui Ma

“…The research shows that the VC vibration of the bearing has a great influence on the motion of the rotor system when the rotational speed is low. Moreover, reasonable control of bearing clearance can reduce the mutual impact between the bearing rolling element and the inner or outer rings of the bearing and reduce the influence of unstable bearing motion on the vibration characteristics of the rotor system. …”
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Analysis of the Control Strategy of Non-linear Torsional Vibration in the Main Driving System of Cold Rolling Mill by He Yongling, Liao Binjie

“…Because Hopf bifurcation is one of the important reasons to the unstable oscillation of the main drive system of the rolling mill,it is necessary for effective control of the phenomenon of Hopf bifurcation. …”
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Stochastically Globally Exponential Stability of Stochastic Impulsive Differential Systems with Discrete and Infinite Distributed Delays Based on Vector Lyapunov Function by Xiaoyan Liu, Quanxin Zhu

“…By using vector Lyapunov function (VLF) and average dwell-time (ADT) condition, we investigate the unstable impulsive dynamics and stable impulsive dynamics of the suggested system, and some novel stability criteria are obtained for SIDSs with DDs and IDDs. …”
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Vibration of Shaft System in the Mixed-Flow Pump Induced by the Rotor-Stator Interaction under Partial Load Conditions by Wei Li, Leilei Ji, Weidong Shi, Yulu Wang, Ling Zhou, Xiaoping Jiang

“…The research results can provide the reference and theory instruction for revealing the operating characteristic of mixed-flow pump when it operates under partial load conditions and to reduce or to prevent the deterioration of vibration of shaft system.…”
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Nonlinear Dynamics Induced by Coil Heat in the PMDC Motor and Control by André Cheukem, Alex Stéphane Kemnang Tsafack, Arnaud Ngonting Topy, Justin Roger Mboupda Pone

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Study of Fixed Points and Chaos in Wave Propagation for the Generalized Damped Forced Korteweg-de Vries Equation using Bifurcation Analysis by Shruti Tomar, Naresh M. Chadha

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On Lorentz Invariant Complex Scalar Fields by Gustavo Rigolin

“…For interactions that break Lorentz invariance, we show that the present theories imply that particles and antiparticles behave differently at decaying processes, with the latter being more unstable. …”
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RESEARCH ON NONLINEAR VIBRATION FOR ELECTRICALLY ACTUATED SINGLE-WALLED CARBON NANOTUBE by YANG ZhiAn, LIU ZhiWei

“…According to the beam theory,the nonlinear dynamic equation of carbon nanotube system is established,it is a nonlinear partial differential equation. …”
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On a New Epidemic Model with Asymptomatic and Dead-Infective Subpopulations with Feedback Controls Useful for Ebola Disease by M. De la Sen, A. Ibeas, S. Alonso-Quesada, R. Nistal

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Bifurcation Analysis and Chaos Control in a Discrete-Time Parasite-Host Model by Xueli Chen, Lishun Ren

“…More specifically, when the integral step size is chosen as a bifurcation parameter, this paper presents the finding of period orbits, attracting invariant cycles and chaotic attractors of the discrete-time parasite-host system. Specifically, we have stabilized the chaotic orbits at an unstable fixed point by using the feedback control method.…”
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Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks by Liguo Zhang, Dong Wang, Guanghe Li, Jiaxing Dong, Jianpeng Zhang

“…In this study, the potentially unstable block of the slope is divided into key block and secondary key block based on the key block theory, and the system reliability evaluation theory is introduced. …”
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Hopf-Bifurcation Analysis of Pneumococcal Pneumonia with Time Delays by Fulgensia Kamugisha Mbabazi, Joseph Y. T. Mugisha, Mark Kimathi

“…In this paper, a mathematical model of pneumococcal pneumonia with time delays is proposed. The stability theory of delay differential equations is used to analyze the model. …”
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Dynamic Analysis and Chaos Control of Bertrand Triopoly Based on Differentiated Products and Heterogeneous Expectations by Liuwei Zhao

“…Therefore, the chaotic behavior of the dynamical system is controlled by time-delay feedback control and the numerical analysis shows that the effective control of the dynamical system can be unstable behavior and the rapid recovery of the market can be stable and orderly.…”
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Stability and Hopf Bifurcation of a Delayed Epidemic Model of Computer Virus with Impact of Antivirus Software by Zizhen Zhang, Ranjit Kumar Upadhyay, Dianjie Bi, Ruibin Wei

“…It has been observed that there is a stability switch and the system becomes unstable due to the effect of the time delay. …”
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Holling-Tanner Predator-Prey Model with State-Dependent Feedback Control by Jin Yang, Guangyao Tang, Sanyi Tang

“…In this paper, we propose a novel Holling-Tanner model with impulsive control and then provide a detailed qualitative analysis by using theories of impulsive dynamical systems. The Poincaré map is first constructed based on the phase portraits of the model. …”
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Comprehensive Evaluation and Dynamic Evolution Characteristics of Tourism Ecological Security Using the DPSIR-DS Model in the Yangtze River Economic Belt, China by Yue Pan, Jia Wang, Zhaolong An, Jianpu Li, Gangmin Weng

“…Aiming at the disadvantage of either-or in evaluation research, this study established the index system based on the inter-period DPSIR framework, designed an integrated assessment model combining the entropy method, the membership function, and the D-S evidence theory model to assess the tourism ecological security level from the perspective of probability value, then revealed its spatiotemporal dynamics characteristics. …”
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Dynamics of phase separation from holography by Maximilian Attems, Yago Bea, Jorge Casalderrey-Solana, David Mateos, Miguel Zilhão

“…Abstract We use holography to develop a physical picture of the real-time evolution of the spinodal instability of a four-dimensional, strongly-coupled gauge theory with a first-order, thermal phase transition. …”
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Large‐Area Lead Monolayers under Cover: Intercalation, Doping, and Phase Transformation by Franziska Schölzel, Peter Richter, Andres David Peña Unigarro, Susanne Wolff, Holger Schwarz, Adrian Schütze, Niels Rösch, Sibylle Gemming, Thomas Seyller, Philip Schädlich

“…It enables the formation of otherwise unstable 2D phases of elements and allows the investigation of the interplay between the 2D materials and the substrate. …”
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Revolutionizing Civil Servant’s Work Behavior through Flexible Working Spaces: Digital Transformation &Green Practices at the Ministry of Finance by Puput Yanita Senja, Wahyu Dian Silviani, Rosana Eri Puspita

“… Introduction/Main Objectives: The COVID-19 pandemic forced the Ministry of Finance of the Republic of Indonesia to carry out a digital transformation by employing the concept of the Flexible Working Space (FWS) to ensure its civil servants can use the Work From Anywhere (WFA) system, including the Work From Home (WFH) system. …”
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