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Zero Energy Anomaly in One-Dimensional Anderson Lattice with Exponentially Correlated Weak Diagonal Disorder

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Communications in Theoretical Physics 2012年第8期58卷 280-284页

作者：王宗国覃绍京康凯王垂林 State Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Science School of Physics Peking University China Center of Advanced Science and Technology

We calculated numerically the localization length of one-dimensional Anderson model with correlated diagonal disorder. For zero energy point in the weak disorder limit, we showed that the localization length changes continuously as the correlation of the disorder increases. We found that higher order terms of the correlation must be included into the current perturbation result in order to give the correct localization length, arid to connect smoothly the anomaly at zero correlation with the perturbation result for large correlation.

关键词： Anderson localization diagonal disorder

Can Nano-Particle Melt below the Melting Temperature of Its Free Surface Partner?

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Communications in Theoretical Physics 2015年第2期63卷 249-254页

作者：眭晓红王宗国康凯覃绍京王垂林 State Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Computer Network Information Center Chinese Academy of Sciences Science and Technology on Surface Physics and Chemistry Laboratory China Center of Advanced Science and Technology

The phonon thermal contribution to the melting temperature of nano-particles is inspected. The discrete summation of phonon states and its corresponding integration form as an approximation for a nano-particle or for a bulk system have been analyzed. The discrete phonon energy levels of pure size effect and the wave-vector shifts of boundary conditions are investigated in detail. Unlike in macroscopic thermodynamics, the integration volume of zero-mode of phonon for a nano-particle is not zero, and it plays an important role in pure size effect and boundary condition effect. We find that a nano-particle will have a rising melting temperature due to purely finite size effect; a lower melting temperature bound exists for a nano-particle in various environments, and the melting temperature of a nano-particle with free boundary condition reaches this lower bound. We suggest an easy procedure to estimation the melting temperature, in which the zero-mode contribution will be excluded, and only several bulk quantities will be used as input. We would like to emphasize that the quantum effect of discrete energy levels in nano-particles, which is not present in early thermodynamic studies on finite size corrections to melting temperature in small systems, should be included in future researches.

关键词： nano-particle quantum size effect boundary condition effect size-dependent melting

Parametrization of Transfer Matrix:for One-Dimensional Anderson Model with Diagonal Disorder

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Communications in Theoretical Physics 2010年第10期 735-740页

作者：康凯覃绍京王垂林 School of Physics Peking University Institute of Theoretical Physics Chinese Academy of Sciences China Center of Advanced Science and Technology

In this paper, we developed a new parametrization method to calculate the localization length in one-dimensionalAnderson model with diagonal *** method can avoid the divergence difficulty encountered in theconventiona... 详细信息

关键词： Anderson localization parametrization of transfer matrix

Unified Description on Behavior of Lyapunov Exponent for 1-D Anderson Model Near Band Center

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Communications in Theoretical Physics 2019年第4期71卷 463-467页

作者： De-Long Feng Kai Kang Shao-Jing Qin Chui-Lin Wang CAS Key Laboratory Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Physical Science University of Chinese Academy of Science Institute of Materials China Academy of Engineering Physics China Center of Advanced Science and Technology

We investigate the behavior for the Lyapunov exponent around the band center in one-dimensional Anderson model with weak disorder. Using a parametrization method we derive the corresponding differential equation and solve the associated invariant distribution. We obtain the coeffcient for the leading correction term for small energy in band center anomaly. A high precision Pade′ approximation formula is applied to fully amend the anomalous behavior of Lyapunov exponent near band center.

关键词： Anderson model disorder system band center anomaly

Properties of Single-Layer Boron Sheets: First-Principle Study through MatCloud Platform

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Communications in Theoretical Physics 2017年第7期67卷 125-130页

作者： Zong-Guo Wang Xiao-Yu Yang Shao-Jing Qin Chui-Lin Wang Computer Network Information Center Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100190 China China Center of Advanced Science and Technology P.O. Box 8730 Beijing 100190 China

Electronic structures in two kinds of boron structures are investigated by the first-principle density func- tional theory （DFT） calculations. One structure is from theoretical prediction, and the other is from experimental in- vestigation. Binding energy calculations suggest that the boron structure designed from theory is more stable than that made by experiment. Elastic constants calculations show that both structures are mechanically stable. The electronic structure results show that the theoretical designed structure exhibits semi-metal behavior, while the other structure exhibits metMlic character. No magnetic phenomenal is discovered from them. All the calculations are carried out by the first principles calculation through the MatC1oud platform, which is developed by our research group.

关键词： first principles Boron monolayer structure electronic properties MatCloud

Particle Size Influence on the Effective Permeability of Composite Materials

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Communications in Theoretical Physics 2018年第5期69卷 598-604页

作者： Tai Xiang Ru-Neng Zhong Bin Yao Shao-Jing Qin and Qin-Hong Zheng Key Laboratory of Photoelectric Information Technology Yunnan Province ~ Solar Energy Research Institute Yunnan Normal University Kunming 650500 China Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100190 China

The energy method, which estimates the effective permeability of composite material is proposed. We approximate the effective static magnetic permeability by energy method and Maxwell-Garnett method for spherical particles dispersing system. Considering the effect of the interface layer between the medium and the particle, we study the nanoparticles embedded in a medium exactly. The interface layer property plays a significant factor for the effective permeability of the composite material in which nano-sized particles embedded.

关键词： energy method nano-sized particle effective permeability composite materials

《仿生人会梦见电子羊吗？》中的非人类书写与伦理反思

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外国文学研究 2025年第1期 153-163页

作者：何阚京上海交通大学外国语学院

在《仿生人会梦见电子羊吗？》中，菲利普·迪克刻画了一个未来的非人类世界，其中非人类展现出越来越强的影响力。巴斯特作为娱乐巨头，操控公众注意力，特别是通过将默瑟的苦难包装成娱乐，诱使人们逃避末世的残酷现实，沉浸于不道德... 详细信息

在《仿生人会梦见电子羊吗？》中，菲利普·迪克刻画了一个未来的非人类世界，其中非人类展现出越来越强的影响力。巴斯特作为娱乐巨头，操控公众注意力，特别是通过将默瑟的苦难包装成娱乐，诱使人们逃避末世的残酷现实，沉浸于不道德的虚假欢愉之中。仿造动物则将动物独特性转化为商品的高额利润，体现人类对生命价值的扭曲和对生命消逝的漠视。共鸣箱作为技术与宗教的结合，通过引导个体以第一视角体验默瑟的苦难实现个体与集体的同在与共情，在形成命运共同体的同时，重塑人类与非人类、自我与他者间的伦理关系。通过巴斯特、电子动物和共鸣箱这三种非人类书写，小说揭示了生态问题、消费主义和享乐主义三者相互交织、共同作用所引发的伦理危机。

关键词：菲利普·迪克《仿生人会梦见电子羊吗?》非人类伦理危机非真实共情

植物性食物中结合多酚的释放及功能活性的研究进展

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食品工业科技 2025年第4期46卷 404-413页

作者：吕京京李璐张娜南疆特色农产品深加工兵团重点实验室塔里木大学食品科学与工程学院新疆阿拉尔843300

天然多酚类化合物广泛存在于植物中,具有抗氧化、抗炎、抗癌等生物活性。按溶解特性可将多酚分为游离多酚和结合多酚,相比较于可直接萃取的游离多酚,结合多酚所占比例更高,分布更广,具有潜在的应用价值,越来越被人们关注。因此本文对结... 详细信息

天然多酚类化合物广泛存在于植物中,具有抗氧化、抗炎、抗癌等生物活性。按溶解特性可将多酚分为游离多酚和结合多酚,相比较于可直接萃取的游离多酚,结合多酚所占比例更高,分布更广,具有潜在的应用价值,越来越被人们关注。因此本文对结合多酚体外释放的方式进行了总结和分析,并简要综述了结合多酚在人体内释放机制,重点综述了结合多酚抗氧化、抗炎、抗癌和调节肠道环境等功能活性的作用机制和研究进展,期望能为结合多酚的未来研究和应用提供参考和指导。

关键词：多酚结合多酚体外释放体内释放功能活性

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我国“无废城市”建设全面推进

生态经济 2025年第03期41卷 9-12页

作者：李华京南京大学商学院

“无废城市”作为一种新型的城市管理理念和模式，在国际社会得到了广泛的认可和实践。我国“无废城市”建设试点始于2019年，在国家政策的大力支持下，我国“无废城市”建设取得了巨大成就。我国“无废城市”建设以新发展理念为基础，... 详细信息

“无废城市”作为一种新型的城市管理理念和模式，在国际社会得到了广泛的认可和实践。我国“无废城市”建设试点始于2019年，在国家政策的大力支持下，我国“无废城市”建设取得了巨大成就。我国“无废城市”建设以新发展理念为基础，重在建设举措及方案的落实，突出具体评价指标的引领作用。当前，在美丽中国建设背景下，我国“无废城市”建设在固体废物产生量、循环利用体系、协同治理体系、强制规定和标准等方面还存在一定的困境，需要从分类利用、长效机制和支撑体系等方面深入谋划推进。我国“无废城市”建设的相关经验及模式对全球可持续发展起到了较好的示范效应。

关键词：固体废物 “无废城市” 循环经济资源化利用可持续发展