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Explosive Synchronization and Emergence of Assortativity on Adaptive Networks

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Chinese Physics Letters 2011年第5期28卷 198-201页

作者： JIANG Hui-Jun WU Hao hou zhong-huai Department of Chemical Physics and Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026

We report an explosive transition from incoherence to synchronization of coupled phase oscillators on adaptive networks,following an Achlioptas process based on dynamic clustering *** each adaptive step of the network topology,a portion of the links is randomly removed and the same amount of new links is generated following the so-called product rules(PRs)applied to the dynamic ***,two types of PRs are considered,namely,the min-PR and *** demonstrate that the synchronization transition becomes explosive in both ***,we find that the min-PR rule can lead to disassortativity of the network topology,while the max-PR rule leads to assortativity.

关键词： synchronization Synchronization network

色噪声性质对一氧化氮还原反应体系随机共振的影响

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高等学校化学学报 2005年第12期26卷 2331-2335页

作者：龚玉兵侯中怀辛厚文中国科学技术大学化学物理系

研究了一定温度条件下和NO气体偏压pNO处在超临界Hopf分岔点附近时,Pt(100)/NO+CO表面催化还原反应体系被色噪声调制后的动力学行为.通过计算机模拟,观察到了色噪声诱导的反应振荡和随机共振现象.探讨了色噪声强度和相关时间对随机共振... 详细信息

研究了一定温度条件下和NO气体偏压pNO处在超临界Hopf分岔点附近时,Pt(100)/NO+CO表面催化还原反应体系被色噪声调制后的动力学行为.通过计算机模拟,观察到了色噪声诱导的反应振荡和随机共振现象.探讨了色噪声强度和相关时间对随机共振行为的影响,得到一些新的结果.

关键词：色噪声随机共振 Pt(100)/NO+CO反应体系超临界Hopf分岔

细胞体系中内噪声对弱信号检测的积极作用(英文)

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物理化学学报 2008年第12期24卷 2203-2206页

作者：李红英马娟侯中怀辛厚文合肥师范学院化学化工系合肥230026 中国科学技术大学化学物理系合肥230026

在小尺度的生物化学反应体系中内噪声是普遍存在的,本文采用化学Langevin方程研究了细胞体系中内噪声对弱信号检测的作用.研究发现,在Hopf分岔点附近,当弱信号非常小以至于不能独立地激发细胞内的钙尖峰振荡时,内噪声能够帮助细胞内的... 详细信息

在小尺度的生物化学反应体系中内噪声是普遍存在的,本文采用化学Langevin方程研究了细胞体系中内噪声对弱信号检测的作用.研究发现,在Hopf分岔点附近,当弱信号非常小以至于不能独立地激发细胞内的钙尖峰振荡时,内噪声能够帮助细胞内的钙振荡信号越过一个域值,并且在一个最佳的内噪声强度下,内噪声、内噪声诱导的钙振荡和弱信号之间会产生共振现象,由此极大地增强了细胞体系对弱信号的检测能力.由于内噪声是通过细胞尺度变化而改变的,因此这种现象也说明了在对弱信号检测行为中最佳细胞尺度的存在.研究还发现最佳的细胞尺度与真正的细胞体积是相吻合的,并且基本不随外界刺激的改变而改变,这具有重要的生物学意义.

关键词：内噪声弱信号检测钙振荡共振

High‑Entropy Electrode Materials:Synthesis,Properties and Outlook

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Nano-Micro Letters 2025年第1期17卷 472-506页

作者： Dongxiao Li Chang Liu Shusheng Tao Jieming Cai Biao zhong Jie Li Wentao Deng Hongshuai hou Guoqiang Zou Xiaobo Ji College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083People’s Republic of China School of Chemistry and Chemical Engineering Hunan Institute of EngineeringXiangtan 411104People’s Republic of China

High-entropy materials represent a new category of high-performance materials,first proposed in 2004 and extensively investigated by researchers over the past two *** definition of high-entropy materials has continuously *** the last ten years,the discovery of an increasing number of high-entropy materials has led to significant advancements in their utilization in energy storage,electrocatalysis,and related domains,accompanied by a rise in techniques for fabricating high-entropy electrode ***,the research emphasis has shifted from solely improving the performance of high-entropy materials toward exploring their reaction mechanisms and adopting cleaner preparation ***,the current definition of high-entropy materials remains relatively vague,and the preparation method of high-entropy materials is based on the preparation method of single metal/low-or medium-entropy *** should be noted that not all methods applicable to single metal/low-or medium-entropy materials can be directly applied to high-entropy *** this review,the definition and development of high-entropy materials are briefly ***,the classification of high-entropy electrode materials is presented,followed by a discussion of their applications in energy storage and catalysis from the perspective of synthesis ***,an evaluation of the advantages and disadvantages of various synthesis methods in the production process of different high-entropy materials is provided,along with a proposal for potential future development directions for high-entropy materials.

关键词： High-entropy Energy storage Electrode materials

System Size Resonance Associated with Canard Phenomenon in a Biological Cell System

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Chinese Journal of Chemical Physics 2008年第6期21卷 521-525页

作者： Juan Ma Hong-ying Li zhong-huai hou hou-wen Xin Department of Chemical Physics University of Science and Technology of China Hefei 230026 China Hefei National Lab of Physical Science at Microscale University of Science and TechnoloEy of China Hefei 230026 China Department of Chemistry Hefei Teachers College Hefei 230000 China

The influence of internal noise on the calcium oscillations is studied. It is found that stochastic calcium oscillations occur when the internal noise is considered, while the corresponding deterministic dynamics only yields a steady state. Also,. the performance of such oscillations shows two maxima with the variation of the system size, indicating the occurrence of system size resonance. This behavior is found to be intimately connected with the canard phenomenon. Interestingly, it is also found that one of the optimal system sizes matches well with the real cell size, and such a match is robust to the variation of the control parameters.

关键词： Internal noise Calcium oscillations System size resonance Canard phenomenon

Effects of Time Delay on Multistability of Genetic Toggle Switch

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Chinese Journal of Chemical Physics 2015年第6期28卷 -页

作者： De-qing Zhu Hui-jun Jiang zhong-huai hou Department of Chemical Physics & Hefei National Laboratory for Physical Sciences at the Microscales iChEM University of Science and Technology of China Hefei 230026 China

The effect of time delay on a genetic toggle switch, whose undelayed dynamics shows low protein expression states (L-states), high expression states (H-states) and coexistence of them different transcription-factor binding rates α, is investigated by using the delayed stochastic simulation method. Interestingly, we find that the delay induces a transition from the coexistence state to L-state or H-state by suppressing the other state. Moreover, the phase diagram on the α-τ plane is obtained by extensive simulations. It is observed that, the coexistence state is remarkably narrowed by increasing delay time, and completely disappears above a triple-point-like point where direct transitions between H-state and L-state are possible.

关键词： Genetic toggle switch Delay Multistability

Coherent Resonance for Rate Oscillations During CO Oxidation on Pt（110） Surfaces： Interplay Between Internal and External Noise

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Chinese Journal of Chemical Physics 2008年第4期21卷 339-345页

作者： Juan Ma zhong-huai hou hou-wen Xin Department of Chemical Physics University of Science and Technology of China Hefei 230026 China Hefei National Lab of Physical Science at Microscale University of Science and Technology of China Hefei 230026 China

Effects of noise on rate oscillations during CO oxidation on Pt（110） surface were investigated, both theoretically and numerically, by focusing on the interplay of internal noise （IN） due to stochasticity in reaction events, and external noise （EN） resulting from parameter perturbation. The surface is divided into cells of variable size which are assumed to be well mixed, and we consider the behavior inside a single cell. Attention is paid to parameter regions subthreshold of the deterministic Hopf bifurcation, where noise can induce stochastic oscillations, the signal-to-noise ratio （SNR） of which shows a maximum with the variation of noise intensity, known as coherent resonance （CR）. By stochastic normal theory, we show that IN and EN contribute in a weighted additive way to an effective noise that lead to CR, such that SNR shows a ridge shape in the D-1/√N plane, where D and 1/√N measures the strength of EN and IN, respectively. It is shown that for too large IN （EN）, CR behavior with EN （IN） no longer exists. Numerical simulations show good agreements with the theoretical results.

关键词： Fluctuation Oscillation Coherent resonance Surface catalysis

Visualization of Film Wavelike Characteristics and Measurement of Film Thickness in Spray Cooling

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Journal of Thermal Science 2013年第2期22卷 186-195页

作者： Yan hou Yujia Tao Xiulan huai Institute of Engineering Thermophysics Chinese Academy of Sciences University of the Chinese Academy of Sciences

An experimental investigation was performed to study the heat transfer in an eight-nozzle spray cooling system with de-ionized water as the working fluid. Visualization of the liquid-solid contact area and the flow near the heated surface was made using a microscopic lens system in conjunction with an advanced high-speed camera. The film thickness and film wavelike characteristics under liquid volume flow rates ranged from 2.78×10 -6 m 3 /s to 1.39×10 -5 m 3 /s and surface temperatures between 22℃ and 78.2℃ were examined respectively. The development process of the liquid film on the heated surface was observed. The local mean film thickness, the film wavelike characteristics and the behavior of the bubbles appeared in the liquid film were captured using an image processing technique. It is discovered that there exists a climax of local mean film thickness during the starting process of spray cooling. When the liquid film reaches the dynamic stable state, the dimensionless mean film thickness decreases with the increase of the liquid volume flow rate, and increases with the increase of surface temperature generally. Besides, the volume flow rate has a more significant impact on the wavelength and amplitude of the liquid film compared to the surface temperature.

关键词： Spray cooling Visualization Film thickness measurement Film wavelike characteristics

Analysis of the structure and expression of the 30K protein genes in silkworm, Bombyx mori

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Insect Science 2007年第1期14卷 5-14页

作者： QUAN SUN PING ZHAO YING LIN YONG hou QING-YOU XIA zhong-huai XIANG The Key Laboratory of Sericulture of Agriculture Ministry College of Sericultur~ and Biotechnology Southwest UniversityChongqing China

A group of lipoproteins with molecular sizes of approximately 30 kDa, referred to as 30K proteins, axe synthesized in fat body cells in the fifth instar larvae of silkworm, Bombyx mori. Analyzing the silkworm genome and its expressed sequence tags （ESTs）, we found 10 genes encoding 30K proteins, which are mainly distributed in three subfamilies. Of these, seven coding proteins were found to harbor the degrading sites of 30kP protease A, although the number of degrading sites may be different. As some potential core promoters and regulatory elements were supposed to be essential for gene transcription, the expression profiles of these genes were examined by semi-quantitative reverse transcription polymerase chain reaction. Eight 30K protein genes were detected to express luxuriantly in the fat body, while two were hardly expressed. Such results suggest that these 30K proteins may have different functions, and their adjacent regulatory elements play a crucial role in regulating their transcription.

关键词： 30K protein Bombyx mori expression structure