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6篇 您的检索式:作者名="FENG ChangShui"
    题名 作者 年代 出处 被引量
1A numerical study of summertime expansion pattern of Changjiang (Yangtze) River diluted water显示文摘Observations show that during summer especially in August, the northward expansion of the Changjiang(Yangtze) River diluted water (CRDW) is blocked in the vicinity of the Changjiang Estuary. To explain this phenomenon, Princeton ocean model (POM) is applied to simulate the summertime expansion pattern of CRDW. Numerical experiments show that to the north of the Changjiang Estuary, a tide-induced temperature front of a cold water centered at (34°N,122.5°E) plays the key role in determining the expansion pattern of CRDW. This front splits the CRDW into two parts: the main part expands northeastward, and the other small part expands northwestward off the coast of Jiangsu Province, China.SHAN Feng QIAO Fangli XIA Changshui 2009Acta Oceanologica Sinica2009,28,3:6
2A numerical study of the wintertime double-warm-tongue structure in the Huanghai(Yellow) Sea显示文摘Satellite remote sensing observations show that during winter, sea surface temperature (SST) presents the structure of double warm tongues in the Huanghai Sea trough: the western and the eastern warm tongues. Numerical experiments based on POM are carried out to study the forming mechanism of this thermal structure and its relation to the Huanghai Sea Warm Current (HSWC). The control experiment reproduces this phenomenon quite well, and comparing experiments inves-tigate the effect of wind and tide. It is found that the western warm tongue is mainly caused by the HSWC, which can be strengthened by wintertime southward wind. The eastern warm tongue develops under the influence of an anti-clockwise circulation which is induced by the temperature front of the Huanghai Sea Cold Water Mass (HSCWM) in summer and autumn. In the eastern portion of this circulation, the northward current carries warm water to the north, forming the eastern warm tongue, which remains till winter.SHAN Feng QIAO Fangli LU Xingang XIA Changshui 2009Acta Oceanologica Sinica2009,28,4:3
3First-passage failure of harmonically and stochastically excited Duffing oscillator with delayed feedback control显示文摘The first-passage failure of Duffing oscillator with the delayed feedback control under the combined harmonic and white-noise excitations is investigated. First, the time-delayed feedback control force is expressed approximately in terms of the system state variables without time delay. Then, the averaged It? stochastic differential equations for the system are derived by using the stochastic averaging method. A backward Kolmogorov equation governing the conditional reliability function and a set of generalized Pontryagin equations governing the conditional moments of the first-passage time are established. Finally, the conditional reliability function, the conditional probability density and moments of the first-passage time are obtained by solving the backward Kolmogorov equation and generalized Pontryagin equations with suitable initial and boundary conditions. The effects of time delay in feedback control force on the conditional reliability function, conditional probability density and moments of the first-passage time are analyzed. The validity of the proposed method is confirmed by digital simulation.FENG ChangShui ZHU WeiQiu 2011Science China(Technological Sciences)2011,54,5:3
4STOCHASTIC OPTIMAL CONTROL OF STRONGLY NONLINEAR SYSTEMS UNDER WIDE-BAND RANDOM EXCITATION WITH ACTUATOR SATURATION显示文摘为在有致动器浸透的非白种人的宽带随机刺激下面的强烈非线性的系统的围住的最佳的控制策略被建议。首先,随机的平均方法用概括泛音功能在宽带随机刺激下面为控制强烈非线性的系统被介绍。然后,为浸透的控制问题的动态编程方程被提出从部分平均它吗?方程基于动态编程原则。由无界的最佳的控制组成的最佳的控制和围住的枪战影片控制被解决动态编程方程决定。最后,最佳地控制的系统的反应被解决方程与联系了的减少的 Fokker-Planck-Kolmogorov (FPK ) 预言完成平均它吗?方程。一个例子被给说明建议控制策略。数字结果证明建议控制策略有高控制有效性和效率并且啁啾显著地被减少与枪战影片作比较控制策略。Changshui Feng Weiqiu Zhu 2008Acta Mechanica Solida Sinica2008,21,2:3
5Facet Engineering of Advanced Electrocatalysts Toward Hydrogen/Oxygen Evolution Reactions显示文摘The electrocatalytic water splitting technology can generate highpurity hydrogen without emitting carbon dioxide,which is in favor of relieving environmental pollution and energy crisis and achieving carbon neutrality.Electrocatalysts can effectively reduce the reaction energy barrier and increase the reaction efficiency.Facet engineering is considered as a promising strategy in controlling the ratio of desired crystal planes on the surface.Owing to the anisotropy,crystal planes with different orientations usually feature facet-dependent physical and chemical properties,leading to differences in the adsorption energies of oxygen or hydrogen intermediates,and thus exhibit varied electrocatalytic activity toward hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).In this review,a brief introduction of the basic concepts,fundamental understanding of the reaction mechanisms as well as key evaluating parameters for both HER and OER are provided.The formation mechanisms of the crystal facets are comprehensively overviewed aiming to give scientific theory guides to realize dominant crystal planes.Subsequently,three strategies of selective capping agent,selective etching agent,and coordination modulation to tune crystal planes are comprehensively summarized.Then,we present an overview of significant contributions of facet-engineered catalysts toward HER,OER,and overall water splitting.In particular,we highlight that density functional theory calculations play an indispensable role in unveiling the structure–activity correlation between the crystal plane and catalytic activity.Finally,the remaining challenges in facet-engineered catalysts for HER and OER are provided and future prospects for designing advanced facet-engineered electrocatalysts are discussed.Changshui Wang Qian Zhang Bing Yan Bo You Jiaojiao Zheng Li Feng Chunmei Zhang Shaohua Jiang Wei Chen Shuijian He 2023Nano-Micro Letters2023,15,4:2
6Optical properties of NAEC-PMMA nonlinear polymeric thin film显示文摘Zhihui Qin Changshui Fang Qiwei Pan Qingtian Gu Feng Chen Feng Li Jinzhong Yu 2002Journal of Materials Science2002,,22:1
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