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Jinqiao Dong Xing Han Yan Liu Haiyang Li Yong Cui 《Angewandte Chemie (International ed. in English)》2020,59(33):13722-13733
Many sophisticated chemical and physical properties of porous materials strongly rely on the presence of the metal ions within the structures. Whereas homogeneous distribution of metals is conveniently realized in metal–organic frameworks (MOFs), the limited stability potentially restricts their practical implementation. From that perspective, the development of metal–covalent organic frameworks (MCOFs) may address these shortcomings by incorporating active metal species atop highly stable COF backbones. This Minireview highlights examples of MCOFs that tackle important issues from their design, synthesis, characterization to cutting‐edge applications. 相似文献
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This paper studies the dynamical behavior of the Ladyzhenskaya model with additive noise. With some conditions, we prove that the generated random dynamical system has a compact random attractor, which is a random compact set absorbing any bounded nonrandom subset of the phase space. 相似文献
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Xianming Liu Jinqiao Duan Jicheng Liu Peter E. Kloeden 《Nonlinear Analysis: Real World Applications》2010,11(5):3437-3445
Dynamical systems driven by Gaussian noises have been considered extensively in modeling, simulation and theory. However, complex systems in engineering and science are often subject to non-Gaussian fluctuations or uncertainties. A coupled dynamical system under non-Gaussian Lévy noise is considered. After discussing cocycle property, stationary orbits and random attractors, a synchronization phenomenon is shown to occur, when the drift terms of the coupled system satisfy certain dissipativity conditions. The synchronization result implies that coupled dynamical systems share a dynamical feature in certain asymptotic sense. 相似文献
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Nonlinear dynamical systems are sometimes under the influence of random fluctuations. It is desirable to examine possible bifurcations for stochastic dynamical systems when a parameter varies. A computational analysis is conducted to investigate bifurcations of a simple dynamical system under non-Gaussian α-stable Lévy motions, by examining the changes in stationary probability density functions for the solution orbits of this stochastic system. The stationary probability density functions are obtained by solving a nonlocal Fokker-Planck equation numerically. This allows numerically investigating phenomenological bifurcation, or P-bifurcation, for stochastic differential equations with non-Gaussian Lévy noises. 相似文献
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Nonlinear Dynamics - The concept of quasi-potential plays a central role in understanding the mechanisms of rare events and characterizing the statistics of transition behaviors in stochastic... 相似文献
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Nonlinear dynamical systems are sometimes under the influence of random fluctuations. It is desirable to examine possible bifurcations for stochastic dynamical systems when a parameter varies. 相似文献
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Chueshov?Igor Duan?Jinqiao Schmalfuss?Bj?rnEmail author 《NoDEA : Nonlinear Differential Equations and Applications》2003,10(4):431-454
Determining functionals are tools to describe the finite
dimensional long-term dynamics of infinite dimensional dynamical systems.
There also exist several applications to infinite dimensional random dynamical
systems. In these applications the convergence condition of the trajectories
of an infinite dimensional random dynamical system with respect to
a finite set of linear functionals is assumed to be either in mean or exponential
with respect to the convergence almost surely. In contrast to these
ideas we introduce a convergence concept which is based on the convergence
in probability. By this ansatz we get rid of the assumption of exponential
convergence. In addition, setting the random terms to zero we obtain usual
deterministic results.We apply our results to the 2D Navier-Stokes equations forced by a
white noise. 相似文献