Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Zhiqin QIAO"'
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 39, Iss 2, Pp 135-141 (2018)
In order to enrich the stability and bifurcation theory of the three dimensional chaotic systems, taking a quadratic truncate unfolding system with the triple singularity equilibrium as the research subject, the existence of the equilibrium, the stab
Externí odkaz:
https://doaj.org/article/bce6074236ea4d6294c9576b4cdb5a3e
Autor:
Zhiqin Qiao, Yancong Xu
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
The bifurcations near a primary homoclinic orbit to a saddle-center are investigated in a 4-dimensional reversible system. By establishing a new kind of local moving frame along the primary homoclinic orbit and using the Melnikov functions, the exist
Externí odkaz:
https://doaj.org/article/8e538b66015849e19ba7cde01a27665a
Autor:
Yichao Zhao, Xiyuan Lu, Fang Wan, Lingchen Gao, Nan Lin, Jie He, Lai Wei, Jianxun Dong, Zihan Qin, Fangyuan Zhong, Zhiqin Qiao, Wei Wang, Heng Ge, Song Ding, Yining Yang, Jiancheng Xiu, Peiren Shan, Fuhua Yan, Shihua Zhao, Yong Ji, Jun Pu
Publikováno v:
Journal of the American College of Cardiology. 79:2097-2115
Shift work is associated with increased risk of acute myocardial infarction (AMI) and worsened prognosis. However, the mechanisms linking shift work and worsened prognosis in AMI remain unclear.This study sought to investigate the impact of shift wor
Autor:
Xianyi Li, Zhiqin Qiao
Publikováno v:
Mathematical and Computer Modelling of Dynamical Systems. 20:264-283
In this paper, a new 3D autonomous Lorenz-type chaotic system is modelled based on the condition that the system may generate chaos whereas it has only stable or non-hyperbolic equilibrium points. This system also includes some well-known Lorenz-like
Publikováno v:
Discrete & Continuous Dynamical Systems - B. 17:1009-1025
Local moving frame is constructed to analyze the bifurcation of a heterodimensional cycle with weak inclination flip in $\mathbb{R}^4$. Under some generic hypotheses, the existence conditions for the heteroclinic orbit, $1$-homoclinic orbit, $1$-peri
Autor:
Wei Song, Yongping Du, Shu-xuan Jin, Jun Pu, Song Ding, Zhiqin Qiao, Ben He, Peiren Shan, Jieyan Shen
Publikováno v:
Aging Clinical and Experimental Research. 22:295-302
Background and aims: Patients aged ≥75 years compose a high-risk subgroup for acute myocardial infarction (AMI). It is unknown whether myocardial perfusion in these patients is decreased compared with younger ones after primary percutaneous coronar
Publikováno v:
International Journal of Bifurcation and Chaos. 20:491-508
The local moving frame approach is employed to study the bifurcation of a degenerate heterodimensional cycle with orbit-flip in its nontransversal orbit. Under some generic hypotheses, we provide the conditions for the existence, uniqueness and nonco
Publikováno v:
Nonlinear Analysis: Real World Applications. 10:611-628
In this paper, we are concerned with the heteroclinic loop bifurcations accompanied by one orbit flip and one inclination flip under some roughness conditions. The existence of one 1-periodic orbit, one 1-homoclinic orbit, two 1-periodic orbits, one
Autor:
Yancong Xu, Zhiqin Qiao
Publikováno v:
Abstr. Appl. Anal.
Abstract and Applied Analysis, Vol 2012 (2012)
Abstract and Applied Analysis, Vol 2012 (2012)
The bifurcations near a primary homoclinic orbit to a saddle-center are investigated in a 4-dimensional reversible system. By establishing a new kind of local moving frame along the primary homoclinic orbit and using the Melnikov functions, the exist
Autor:
Lisheng Jiang, Shu-xuan Jin, Jieyan Shen, Song Ding, Ben He, Jun Pu, Yongping Du, Peiren Shan, Linhong Shen, Wei Song, Zhiqin Qiao
Publikováno v:
Atherosclerosis. 215(1)
Objective The impact of gender on clinical course after ST-elevation myocardial infarction (STEMI) is not fully understood. We prospectively investigated whether there are gender-related differences in epicardial and myocardial tissue-level perfusion