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Influence of Inhomogeneity on Critical Behavior of Earthquake Model on Random Graph

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Communications in Theoretical Physics 2006年第2X期46卷 261-264页

作者： ZHANG Duan-Ming SUN Fan yu bo-Ming pan Gui-Jun YIN Yah-Ping LI Rui SU Xiang-Ying Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

We consider the earthquake model on a random graph. A detailed analysis of the probability distribution of the size of the avalanches will be given. The model with different inhomogeneities is studied in order to compare the critical behavior of different systems. The results indicate that with the increase of the inhomogeneities, the avalanche exponents reduce, i.e., the different numbers of defects cause different critical behaviors of the system. This is virtually ascribed to the dynamical perturbation.

关键词： self-organized criticality earthquake model critical behavior power-law finite size scaling random network

Self-organized Criticality in an Earthquake Model on Random Network

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Communications in Theoretical Physics 2006年第2期45卷 293-296页

作者： ZHANG Duan-Ming SUN Fan yu bo-Ming pan Gui-Jun SUN Hong-Zhang YIN Yah-Ping LI Rui SU Xiang-Ying Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

A simplified Olami-Feder-Christensen model on a random network has been studied. We propose a new toppling rule -- when there is an unstable site toppling, the energy of the site is redistributed to its nearest neighbors randomly not averagely. The simulation results indicate that the model displays self-organized criticality when the system is conservative, and the avalanche size probability distribution of the system obeys finite size scaling. When the system is nonconservative, the model does not display scaling behavior. Simulation results of our model with different nearest neighbors q is also compared, which indicates that the spatial topology does not alter the critical behavior of the system.

关键词： self-organized criticality earthquake model finite size scaling random network

基于萤火虫优化粒子滤波的新型机动目标跟踪算法

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控制与决策 2017年第10期32卷 1758-1766页

作者：田梦楚薄煜明吴盘龙陈志敏岳聪王华南京理工大学自动化学院南京210094 中国卫星海上测控部江苏江阴214431

交互式多模型粒子滤波算法需要多个模型才能对强机动目标进行跟踪,并且粒子滤波的重采样会导致粒子贫化现象,针对该问题提出一种新型机动目标跟踪方法.该方法首先将萤火虫群体的吸引和移动机制引入粒子滤波;再将改进粒子滤波引入交互式... 详细信息

交互式多模型粒子滤波算法需要多个模型才能对强机动目标进行跟踪,并且粒子滤波的重采样会导致粒子贫化现象,针对该问题提出一种新型机动目标跟踪方法.该方法首先将萤火虫群体的吸引和移动机制引入粒子滤波;再将改进粒子滤波引入交互式多模型中,通过智能寻优的方式提高交互式多模型的跟踪精度和稳定性.实验结果表明,相对于IMM-PF,改进方法可以用更少的时间达到同等精度,提高了机动目标跟踪的效率.

关键词：粒子滤波萤火虫算法机动目标跟踪粒子贫化交互式多模型

大容量VB_2-空气电池负极材料的制备与性能

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无机材料学报 2017年第2期32卷 122-126页

作者：魏治国路新佟健博潘宇王国庆曲选辉北京科技大学新材料技术研究院北京100083 新材料与产业技术北京研究院北京102200

VB_2因具有超高理论比容量(4060 m Ah/g)而成为具有发展潜力的空气电池负极材料。实验以VB_2为负极活性物质,Ni为导电剂,NH_4HCO_3为造孔剂,采用粉末冶金方法制备了大容量VB_2-空气电池用多孔负极片,并探讨了负极片孔隙度对负极所组装... 详细信息

VB_2因具有超高理论比容量(4060 m Ah/g)而成为具有发展潜力的空气电池负极材料。实验以VB_2为负极活性物质,Ni为导电剂,NH_4HCO_3为造孔剂,采用粉末冶金方法制备了大容量VB_2-空气电池用多孔负极片,并探讨了负极片孔隙度对负极所组装空气电池放电性能的影响规律。结果表明,所制备的多孔VB_2负极片放电性能优异,放电比容量可以达到3216~3463 m Ah/g范围内;多孔VB_2负极片放电容量、比容量、库伦效率和比能量均与孔隙度密切相关。当添加15wt%NH_4HCO_3造孔剂时,烧结制备的多孔VB_2负极片的孔隙度为60.91%,此时VB_2-空气电池放电性能最优:放电容量为7792 m Ah,放电比容量为3463 m Ah/g,库伦效率为85.30%,放电比能量为2370 mWh/g。

关键词： VB2-空气电池负极比容量粉末冶金

Molecular mechanism and research progress of traditional Chinese medicine in the treatment of prostate cancer

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Traditional Medicine Research 2025年第1期10卷 62-72页

作者： Hai-Luo Wang Ruo-Ran Zhang Hao Wang Peng Xu Jing-Kai Wang bo Chen Hao Xu Deng pan yu-Yang Ma Kun pang Department of Urology Xuzhou Central HospitalXuzhou Clinical School of Xuzhou Medical CollegeXuzhou 221009China Graduate School Jiangsu UniversityZhenjiang 212013China Graduate School Bengbu Medical UniversityBengbu 233040China Department of Urology The Peixian People’s HospitalXuzhou 221699China.

Prostate cancer(PCa)is one of the most common malignant tumors in the male genitourinary system,ranking second in incidence *** Chinese medicine(TCM),as an important component of complementary and alternative medicine,shows unique advantages in cancer *** herbal medicine is usually composed of multiple ingredients and involves multiple signaling pathways,which showed function of inducing apoptosis of cancer cells,arresting the cell cycle,inhibiting invasion and metastasis,reducing drug resistance,and regulating immune *** therapy is also an important treatment of ***,Physical therapy such as acupuncture or Tai Chi and Qigong are gaining increased recognition in the management of PCa,particularly in addressing issues like urinary incontinence and bone metastasis-related *** article reviews the TCM treatment and therapy of PCa,in order to provide new research avenues and treatment options for the treatment of PCa with TCM and improve the quality of life of patients.

关键词： traditional Chinese medicine prostate cancer Chinese herbal medicine physical therapy

Broadband and perfect terahertz absorber based on multilayer metamaterial with cross-ring patterned structures

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Optoelectronics Letters 2025年第1期21卷 1-6页

作者： WEN Jin LIU Zhanzhi WU Zhengwei pan yu ZHANG Ying School of Science Xi'an Shiyou University Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells

Broadband and perfect terahertz absorber based on multilayer metamaterial using cross-ring patterned structures is proposed and investigated. The structure of the absorber is double absorption layers consisting of a chromium cross ring and eight isosceles right triangles. The unique structure of the double absorbing layers excites the electric dipole multimode resonance, giving rise to high absorption performance. Meanwhile, the influence of construal parameters on absorber behavior is also discussed. The numerical results show that the absorption achieves over 90% ranging from 2.45 THz to 6.25 THz and 99% absorption in the range of 3.7—5.3 THz. The realization of broadband and perfect absorber is described using the impedance matching principle. It is obviously found that the absorber is insensitive to the high angle of incidence for both transverse electric(TE) and transverse magnetic(TM) polarizations. Compared with the former reports, this absorber has remarkable improved absorption efficiency and smaller period. The terahertz absorber may be found applications in the fields of energy capture and thermal detection.

关键词： Metamaterials

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壳聚糖聚醚衍生物在棉活性无盐染色中的应用

印染 2017年第6期43卷 6-9页

作者：廖波张宾于潘芬杜小名于晓涵柳荣展青岛大学纺织服装学院山东青岛266071

采用自制的壳聚糖聚醚衍生物PEG-CS对棉织物进行阳离子改性,并用活性染料对改性后的棉织物进行无盐染色。研究了预处理工艺条件对棉织物无盐染色效果的影响,确定了合适的预处理工艺条件:PEGCS质量浓度40 g/L,pH=6,80℃浸渍10 min,两浸两... 详细信息

采用自制的壳聚糖聚醚衍生物PEG-CS对棉织物进行阳离子改性,并用活性染料对改性后的棉织物进行无盐染色。研究了预处理工艺条件对棉织物无盐染色效果的影响,确定了合适的预处理工艺条件:PEGCS质量浓度40 g/L,pH=6,80℃浸渍10 min,两浸两轧(带液率80%),80℃烘干,110℃焙烘3 min。结果表明,经PEG-CS处理的棉织物,用活性艳蓝KN-R无盐染色后,其染色性能略低于常规有盐染色,优于未经处理的棉织物无盐染色。

关键词：活性染料无盐染色改性壳聚糖棉织物

Small modifications of endo-functionalized cavities lead to large changes in molecular interaction in water

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Science China Chemistry 2025年第1期 369-376页

作者： Song-Meng Wang Hao Nian Yan-Fang Wang Li-Shuo Zheng yu-Tao Zheng Yi-Wei Dong Liping Huang Xiaoping Wang Wei Jiang Liu-pan Yang Department of Chemistry Southern University of Science and Technology School of Chemistry and Pharmaceutical Sciences State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesGuangxi Normal University School of Pharmaceutical Science Hengyang Medical School University of South China

Studying molecular recognition in aqueous environments is crucial for understanding biological processes. Herein, we present a series of N-doped endo-functionalized anthracene-based cavities by introducing inward-directed pyridine units. The subtle modifications can significantly affect the binding properties of these receptors, which is similar to the mutations in biological systems. Combining theoretical calculations and molecular recognition experiments demonstrated that these “mutations” have an impact on the hydrophobicity and charge distribution of the hosts, consequently significantly influencing molecular *** is crucial for understanding the intricate mechanisms of molecular-level interactions in biological receptors.

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Inter-Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding, Sensing and Thermal Management

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NANO-MICRO LETTERS 2025年第1期17卷 1-18页

作者： Li, Xufeng Chen, Chunyan Li, Zhenyang Yi, Peng Zou, Haihan Deng, Gao Fang, Ming He, Junzhe Sun, Xin yu, Ronghai Shui, Jianglan pan, Caofeng Liu, Xiaofang Beihang Univ Sch Mat Sci & Engn Beijing 100191 Peoples R China Beihang Univ Inst Atom Mfg Beijing 100191 Peoples R China Tianmushan Lab Xixi Octagon City Hangzhou 310023 Peoples R China Beijing Inst Environm Features Sci & Technol Electromagnet Scattering Lab Beijing 100854 Peoples R China

Unique inter-skeleton conductive films are constructed in polymer *** resistance change of the foam can reach four orders of magnitude under *** foam exhibits strain-adaptive electromagnetic interference shielding performance, anti-interference pressure sensor with high sensitivity over a wide pressure range and compression-regulated Joule heating function. Conductive polymer foam (CPF) with excellent compressibility and variable resistance has promising applications in electromagnetic interference (EMI) shielding and other integrated functions for wearable electronics. However, its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during deformation. Here, an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under compression. Unique inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton (denoted as AMLM-PM foam). Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive films. Therefore, the resistance change of AMLM-PM reaches four orders of magnitude under compression. Moreover, the inter-skeleton conductive films can improve the mechanical strength of foam, prevent the leakage of liquid metal and increase the scattering area of EM wave. AMLM-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness, solving the problem of traditional CPFs upon compression. The upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding