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关于生命系统熵势函数的建立及应用 被引量:1
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作者 刘春琴 冯玉广 《生命科学研究》 CAS CSCD 2007年第1期16-20,共5页
依据非平衡非线性系统理论的广义势函数,建立了可描述生命系统的熵势及其表达式.作为应用,分析了生命系统的相变和生命机体内部的熵力.
关键词 生命系统 熵势 非平衡相变
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生命系统演化的熵势函数探析 被引量:1
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作者 刘春琴 冯玉广 《复杂系统与复杂性科学》 EI CSCD 2006年第4期35-40,共6页
生命系统遵循怎样的演化规律,传统的还原论思想和线性思维是无能为力的,本文依据非平衡非线性系统理论的广义势函数,建立了可描述生命系统演化的熵势及其表达式。通过分析生命系统的相变和生命机体内部的熵力,说明熵势反映生命的发育和... 生命系统遵循怎样的演化规律,传统的还原论思想和线性思维是无能为力的,本文依据非平衡非线性系统理论的广义势函数,建立了可描述生命系统演化的熵势及其表达式。通过分析生命系统的相变和生命机体内部的熵力,说明熵势反映生命的发育和进化,在这个势的作用下生命越来越有序,而且熵力是生命系统维持相对稳定性的原动力。 展开更多
关键词 生命系统 熵势 非平衡相变
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面向聚类分析的邻域拓扑势熵数据扰动方法 被引量:5
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作者 张冰 杨静 +1 位作者 张健沛 谢静 《哈尔滨工程大学学报》 EI CAS CSCD 北大核心 2014年第9期1149-1155,共7页
针对现有数据扰动方法难以维持原始数据的聚类可用性问题,提出了一种隐私保护数据扰动算法DPTPE.基于邻域拓扑势熵将节点划分为不同类型,对于邻域分散型节点,以该节点的k邻域中节点坐标的均值替换其原始坐标;对于邻域紧密型节点,在其安... 针对现有数据扰动方法难以维持原始数据的聚类可用性问题,提出了一种隐私保护数据扰动算法DPTPE.基于邻域拓扑势熵将节点划分为不同类型,对于邻域分散型节点,以该节点的k邻域中节点坐标的均值替换其原始坐标;对于邻域紧密型节点,在其安全邻域中随机选择一个节点替换该节点。实验结果表明,DPTPE算法可以保护数据的隐私安全,还能够较好地维持数据集的聚类可用性。 展开更多
关键词 隐私保护 聚类分析 数据扰动 邻域拓扑 安全邻域
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生命复杂系统——进化场中的自组织系统 被引量:7
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作者 刘春琴 侯云花 +1 位作者 刘素珍 冯玉广 《系统科学学报》 2007年第4期49-54,共6页
通过对生命复杂系统理论的研究,从热力学和系统科学的角度出发,总结出生命系统的五个基本特点,阐述了进化场理论,并通过与引力场理论的比较,引入了包括广义自组织、结构力、负熵、序能、熵势等一系列新概念统一描述生命系统的普遍现象... 通过对生命复杂系统理论的研究,从热力学和系统科学的角度出发,总结出生命系统的五个基本特点,阐述了进化场理论,并通过与引力场理论的比较,引入了包括广义自组织、结构力、负熵、序能、熵势等一系列新概念统一描述生命系统的普遍现象。从一个全新的角度,揭示了生命系统在生长发育,生老病死及进化过程中所遵循的自然规律。不仅架起了物理学、生命科学和系统科学的一座桥梁,也为进一步认识生命科学系统提供了新的思路。 展开更多
关键词 生命系统 自组织 结构力 序能 熵势
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基于拓扑势熵的维基百科词条编辑演化研究 被引量:9
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作者 赵东杰 王华 +3 位作者 李德毅 李智 杨海涛 陈桂生 《科技导报》 CAS CSCD 北大核心 2012年第4期71-74,共4页
网络群体智能涌现问题是信息科学和社会科学的多学科交叉研究问题。基于映射思想将其映射为维基百科词条编辑演化问题,提出词条编辑演化研究方法框架;以维基百科高质量词条编辑历史数据为数据集,以编辑者为节点,以编辑者间编辑交互关系... 网络群体智能涌现问题是信息科学和社会科学的多学科交叉研究问题。基于映射思想将其映射为维基百科词条编辑演化问题,提出词条编辑演化研究方法框架;以维基百科高质量词条编辑历史数据为数据集,以编辑者为节点,以编辑者间编辑交互关系为连边,构建词条编辑交互网络,通过建立网络演化测度拓扑势熵实现对词条编辑演化研究。实验分析表明,网络结构和词条总体上朝着有序方向演化,演化呈现出"从注重完整性到注重准确性再到注重可读性"的由低到高3个阶段,直至群体结构趋于稳定,结构具有无标度性,词条质量和群体智能达到很高水平;存在语量与语义之间此消彼长、最终达到动态平衡的过程,语量与语义平衡临界点近似为黄金分割点,词条编辑演化遵循着黄金分割律。方法框架有效,深化了对词条编辑演化、网络群体智能和社会计算的认识。 展开更多
关键词 维基百科 词条编辑演化 拓扑 网络化数据挖掘 群体智能 社会计算
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Stochastic Thermodynamics of Mesoscopic Electrochemical Reactions
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作者 肖铁军 周匀 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2018年第1期61-65,I0001,共6页
In this work, we discussed the stochastic thermodynamics of mesoscopic electron transfer reactions between ions and electrodes. With a relationship between the reaction rate con- stant and the electrode potential, we ... In this work, we discussed the stochastic thermodynamics of mesoscopic electron transfer reactions between ions and electrodes. With a relationship between the reaction rate con- stant and the electrode potential, we find that the heat dissipation βq equals to the dynamic irreversibility of the reaction system minus an internal entropy change term. The total en- tropy change Ast is defined as the summation of the system entropy change As and the heat dissipation/βq such that △st=△s+βq. Even though the heat dissipation depends linearly on the electrode potential, the total entropy change is found to satisfy the fluctuation theo- rem 〈e-△st 〉=1, and hence a second law-like inequality reads (△st)≥0. Our study provides a practical methodology for the stochastic thermodynamics of electrochemical reactions, which may find applications in biochemical and electrochemical reaction systems. 展开更多
关键词 Mesoscopic chemical reaction Electron transfer Electrode potential Entropyproduction Fluctuation theorem
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Entropy Bound Derived from the New Thermodynamics on Holographic Screen
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作者 吴广 谷伟 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第9期451-454,共4页
We introduce a new interpretation of chemical potential and show that holographic entropy is entropybound,which is supported by two ideal cases discussed in detail.One is sparse but incompressible liquid like a star o... We introduce a new interpretation of chemical potential and show that holographic entropy is entropybound,which is supported by two ideal cases discussed in detail.One is sparse but incompressible liquid like a star ofuniform density and the other is a screen at infinity in spherically symmetric spacetime.Our work is based on the newscenario of entropy force and holographic thermodynamics,and the Brown-York quasi-local energy. 展开更多
关键词 entropy bound holographic thermodynamics GRAVITY
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Study on the safety production evaluation of the coal mine based on entropy-TOPSIS 被引量:3
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作者 WANG Li-jie SHAO Xiang-li 《Journal of Coal Science & Engineering(China)》 2010年第3期284-287,共4页
In order to evaluate the safety production situation of the coal mine effectively,selected the indicators about mine production safety, applied entropy method to determinethe objective weight of each index, calculated... In order to evaluate the safety production situation of the coal mine effectively,selected the indicators about mine production safety, applied entropy method to determinethe objective weight of each index, calculated the distance and close degree between themines and the ideal point and negative ideal point, and then evaluated the safety productionsituation of the mines according to the close degree.The results show that the methodprovides a reasonable, concise and more objective idea to evaluate the safety productionsituation of the mines. 展开更多
关键词 safety production ENTROPY TOPSIS close-degree
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The Asynchronous Phenomenon and Relative Efficiency of Tourism Resources in China Based on Panel Data for 31 Provinces from 2001 to 2009 被引量:4
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作者 方叶林 黄震方 +2 位作者 张宏 彭倩 陆玮婷 《Journal of Resources and Ecology》 CSCD 2014年第3期280-288,共9页
We used panel data for 31 Chinese provinces from 2001 to 2009 and entropy methods to evaluate regional tourism resources endowment.Combined with regional tourism revenue,we constructed an asynchronous index and quanti... We used panel data for 31 Chinese provinces from 2001 to 2009 and entropy methods to evaluate regional tourism resources endowment.Combined with regional tourism revenue,we constructed an asynchronous index and quantitatively evaluated every area's asynchronous phenomenon regarding tourism resources.We found that Chinese mainland tourism resources have asynchronous phenomenon: tourism is positively asynchronous in the east(Yangtze River Delta,Pearl River Delta and Beijing-Tianjin region) and negatively asynchronous in central and western China.The total efficiency of tourism resources in eastern China is mainly driven by pure technology efficiency and by scale efficiency in western China.In addition to some provinces,the ranking of provincial total efficiency and the asynchronous index has a strong positive correlation.We conclude with several suggestions for the development of tourism resources across China. 展开更多
关键词 tourism resources asynchronous index relative efficiency entropy-value method superiority degree China
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Entropy Spectrum of Black Holes of Heterotic String Theory via Adiabatic Invariance
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作者 Alexis Larranaga Luis Cabarique Manuel Londono 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第10期509-512,共4页
Using adiabatic invariance and the Bohr-Sommerfeld quantization rule we investigate the entropy spectroscopy of two black holes of heterotic string theory,the charged GMGHS and the rotating Sen solutions.It is shown t... Using adiabatic invariance and the Bohr-Sommerfeld quantization rule we investigate the entropy spectroscopy of two black holes of heterotic string theory,the charged GMGHS and the rotating Sen solutions.It is shown that the entropy spectrum is equally spaced in both cases,identically to the spectrum obtained before for Schwarzschild,Reissner-Nordstr?m and Kerr black holes.Since the adiabatic invariance method does not use quasinormal mode analysis,there is no need to impose the small charge or small angular momentum limits and there is no confusion on whether the real part or the imaginary part of the modes is responsible for the entropy spectrum. 展开更多
关键词 quantum aspects of black holes THERMODYNAMICS strings and branes
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