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Akademický článek

Causality research based on phase space reconstruction.

Autor: Lei Hu, Zhuoma Sunu, Hongke She, Binghuai Fan, Jingru Ma, Chaojiu Da

Publikováno v: PLoS ONE, Vol 19, Iss 11, p e0313990 (2024)

Based on phase space reconstruction theory, the root mean square error is used as a quantitative criterion for identifying the appropriate embedding dimension and time step and selecting the optimal configuration for these factors. The phase space is

Externí odkaz: https://doaj.org/article/69bff3964e7d488aa9c739c957a3e312

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Akademický článek

Decomposition of Lorenz Trajectories Based on Space Curve Tangent Vector

Autor: Jingru Ma, Lei Hu, Hongke She, Binghuai Fan, Chaojiu Da

Publikováno v: Atmosphere, Vol 15, Iss 3, p 319 (2024)

This article explores the evolution of Lorenz trajectories within attractors. Specifically, based on the characteristics of the tangents to trajectories, we derive quantitative standards for determining the spatial position of trajectory lines. The L

Externí odkaz: https://doaj.org/article/b844c29064b34b178640f80cbc1c43a8

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Akademický článek

Theoretical Study and Numerical Experiment on the Influence of Trend Changes on Correlation Coefficient

Autor: Chaojiu Da, Lei Hu, Binglu Shen, Yuyin Yang, Shiquan Wan, Jian Song

Publikováno v: Atmosphere, Vol 13, Iss 1, p 66 (2021)

When one of two time series undergoes an obvious change in trend, the correlation coefficient between the two will be distorted. In the context of global warming, most meteorological time series have obvious linear trends, so how do variations in the

Externí odkaz: https://doaj.org/article/a75d5df2d0144973a7d82068aa5149db

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Akademický článek

Abrupt Change Detection Method Based on Features of Lorenz Trajectories

Autor: Chaojiu Da, Binglu Shen, Jian Song, Cairang Xaiwu, Guolin Feng

Publikováno v: Atmosphere, Vol 12, Iss 6, p 781 (2021)

This paper presents a definition of bifurcation-type abrupt changes based on the bifurcation features of Lorenz trajectories. These abrupt changes are the result of the transition behavior of dynamical system trajectories among different equilibrium

Externí odkaz: https://doaj.org/article/6c8556070dba4fc5bee71bc928c253e1

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Theoretical Study and Numerical Experiment on the Influence of Trend Changes on Correlation Coefficient

Autor: Chaojiu Da, Lei Hu, Binglu Shen, Yuyin Yang, Shiquan Wan, Jian Song

Publikováno v: Atmosphere, Vol 13, Iss 66, p 66 (2022)
Atmosphere; Volume 13; Issue 1; Pages: 66

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49fe2967dc0ab4c2e795d3d8af9651ce
https://www.mdpi.com/2073-4433/13/1/66

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Akademický článek

Detection of a sudden change of the field time series based on the Lorenz system.

Autor: ChaoJiu Da, Fang Li, BingLu Shen, PengCheng Yan, Jian Song, DeShan Ma

Publikováno v: PLoS ONE, Vol 12, Iss 1, p e0170720 (2017)

We conducted an exploratory study of the detection of a sudden change of the field time series based on the numerical solution of the Lorenz system. First, the time when the Lorenz path jumped between the regions on the left and right of the equilibr

Externí odkaz: https://doaj.org/article/a892d71d9c8f44b3b066ed5aec692124

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Akademický článek

The shallow water equation and the vorticity equation for a change in height of the topography.

Autor: ChaoJiu Da, BingLu Shen, PengCheng Yan, DeShan Ma, Jian Song

Publikováno v: PLoS ONE, Vol 12, Iss 6, p e0178184 (2017)

We consider the shallow water equation and the vorticity equations for a variable height of topography. On the assumptions that the atmosphere is incompressible and a constant density, we simplify the coupled dynamic equations. The change in topograp

Externí odkaz: https://doaj.org/article/cc220fc0460e418695ba160828bc75f9

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