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RISS 인기검색어
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- 저자 : Qiu Haibo (검색결과 4 건)
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Measure Synchronization in a Huygens’s Non-Dissipative Two-Pendulum Clocks System
Jing Tian,ZiChen Chen,HaiBo Qiu,XiaoQiang Xi 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.72 No.2
In this paper, we characterize measure synchronization (MS) in a four-degrees-of-freedom Huygens’s two-pendulum clocks system. The two-pendulum clocks are connected by a massless spring with stiffness constant k. We find that with the stiffness constant k increasing, the coupled pendulums system achieves MS above a threshold value of kc. The energy characteristics of measure synchronization have been discussed, it is found that averaged energy of each pendulum system provide us an easy way to characterize MS transition. Furthermore, we discuss the dependence of the critical value for MS transition on initial conditions and the characteristic parameters of the system.
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Measure Synchronization and Phase Coherence in a High Dimensional Hamiltonian System
Jing Tian,Bo Li,Haibo Qiu 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.74 No.8
Partial and complete measure synchronizations (MSs) are investigated in a high-dimensional Hamiltonian system. Here, a four-coupled ring-shaped rotor model is employed. We calculate the averaged energy of each rotor numerically to address the clustering process of measure synchronization. Poincar\'e sections are used to analyze the dynamic mechanism of partial MS and complete MS transitions, and the separatrix crossing is revealed to be the dynamical mechanism behind all different MS transition behaviors. By calculating the averaged frequency of each rotor, we explore the relationship between frequency locking and MS, and reveal a one-to-one correspondence. Furthermore, we find that abrupt changes in global or even partial phase coherence between the phase oscillators can be an indicator for MS transitions, albeit full phase coherence is not equivalent to measure synchronization.
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Collective dynamics in multi-population Hamiltonian systems
Tian Jing,Ying Jiaqi,Qiao Tianli,Qiu Haibo 한국물리학회 2023 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.82 No.12
In this paper, we investigate measure synchronization (MS) in a two-population network of coupled metronomes system. The system consists of N identical metronomes placed on two swing boards, and the two swings are connected by spring of stifness k. Metronomes on each swing represents a single population. We mainly study the collective dynamics of multipopulation Hamiltonian induced by increased couplings, including inter-population and intra-population couplings. It is found that by tuning K for the inter-population coupling intensity and R for the intra-population coupling intensity, the system reaches various MS states at certain critical coupling intensities, including partial MS and complete MS. The occurrence of partial and complete MS are discussed particularly by analyzing the Poincaré sections of the Hamiltonian system. In addition, we fnd correspondence in between the phase-locking dynamics and various MS transitions.
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Chaojin Hong,Yimei Meng,Anchen Qiu,Haibo Zhang,Liu Yang,Yupeng Hong,Yumei Huang 생화학분자생물학회 2024 BMB Reports Vol.57 No.7
Lung cancer is one of the most significant malignancies, withboth high morbidity and mortality. CDK10 is closely related tocancer progression and metastasis. However, its role in lungcancer radioresistance demands further clarification. In this study,we demonstrated that CDK10 was downregulated in lung cancertissues, and CDK10 expression level was associated withthe clinical prognosis in lung cancer patients. We also foundthat silencing CDK10 promoted lung cancer cell proliferation,migration, and radioresistance. We further verified that silencingCDK10 facilitated the activation of JNK/c-Jun signaling, and c-Jundepletion could reverse the effects of CDK10 knockdown inlung cancer cells. Our findings revealed that CDK10 plays animportant role in cell growth and radioresistance by inhibitingJNK/c-Jun signaling pathway in lung cancer. Therefore, CDK10might be a promising therapeutic target in lung cancer.
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