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参考中性表情的人脸表情识别

华南理工大学学报（自然科学版） 2014年第5期42卷 115-121页

作者：邹文杰王文静杨付正西安电子科技大学综合业务网理论及关键技术国家重点实验室陕西西安710071

为充分利用视频中人脸表情与中性表情的差异,提出了一种新的对非特定人脸的表情识别方法.该方法针对低复杂度的视频表情识别应用场景,利用参考中性表情的特征点偏移角表征被测表情的变化信息,同时利用二维主成分分析(2DPCA)法提取被测... 详细信息

为充分利用视频中人脸表情与中性表情的差异,提出了一种新的对非特定人脸的表情识别方法.该方法针对低复杂度的视频表情识别应用场景,利用参考中性表情的特征点偏移角表征被测表情的变化信息,同时利用二维主成分分析(2DPCA)法提取被测表情帧的二维主成分特征,从而综合使用表情的动态和静态特征,并使用支持向量机分类器进行表情分类识别.在JAFFE人脸表情库上的实验结果表明,相对于仅使用2DPCA的静态图像表情识别方法,文中所提方法的人脸表情识别准确率平均提高7%.

关键词：模式识别表情识别特征点偏移角二维主成分分析支持向量机

面向现代铁路业务需求的GSM-R寻址方式研究

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铁道学报 2000年第2期22卷 45-49页

作者：廖敏张静王文静钟章队北方交通大学现代通信研究所北京100044

针对铁路现有无线通信业务的需求 ,对 GSM- R的特殊寻址方式——功能寻址和基于位置的寻址进行了研究 ,给出了两种寻址方式的定义 ,对它们的实现过程进行了深入的探讨 ,并就 GSM-

关键词：移动通信铁路通信 GSM-R 寻址方式

高校扩招、教育收益率与城乡收入阶层分化——基于断点回归的分析

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税务与经济 2019年第1期 34-41页

作者：王文静东北师范大学政法学院吉林长春130117

利用中国综合社会调查数据(CGSS),基于模糊断点回归设计方法,对我国城乡居民教育收益率进行实证检验,探讨高校扩招政策对城乡居民教育收益率的影响以及对城乡居民带来的收入阶层分化效应。结果显示,高等教育扩招政策对城乡居民教育程度... 详细信息

利用中国综合社会调查数据(CGSS),基于模糊断点回归设计方法,对我国城乡居民教育收益率进行实证检验,探讨高校扩招政策对城乡居民教育收益率的影响以及对城乡居民带来的收入阶层分化效应。结果显示,高等教育扩招政策对城乡居民教育程度均产生了显著的正向影响,但对提高城镇居民受教育程度的作用更为明显;高校扩招政策对城乡内部不同收入群体的教育及收入产生了显著的分化作用,有助于缩小城市内部不同收入群体的教育收益率,但对不同收入群体的收入及教育具有分化影响,形成了"马太效应";高校扩招政策对城乡之间不同收入群体的影响也存在分化影响,在一定程度上缩小了城乡间高收入群体的收入差距。

关键词：高校扩招政策教育收益率收入阶层分化断点回归

东盟重点研究学科、产业政策分析及对中国国际科技合作的启示

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科学管理研究 2020年第5期38卷 168-174页

作者：王雯婧曾静婷西北政法大学经济学院陕西西安710063

加强与东盟各国的科技合作,不仅能优势互补、推动各方科技创新,更是中国与东盟战略伙伴关系深化升级的要求。依据东盟各国科技部报告,基于Web of Science数据库和Incites数据库获取的2007~2018年科技论文数据,采用文献计量和社会网络图... 详细信息

加强与东盟各国的科技合作,不仅能优势互补、推动各方科技创新,更是中国与东盟战略伙伴关系深化升级的要求。依据东盟各国科技部报告,基于Web of Science数据库和Incites数据库获取的2007~2018年科技论文数据,采用文献计量和社会网络图谱法,分析东盟十国的重点研究学科和优先发展产业,以及“一带一路”倡议前后的国际科技合作变化。研究发现东盟各国学科领域发展各有侧重,与中国的科技合作有较大的可开辟空间。中国与东盟应加大在临床医学、工程和环境生态学等重点研究学科的科技合作,推动双方的共同发展;加强在生物技术、信息技术等部分东盟国家非重点研究学科但优先发展产业领域的合作,抓住东盟国家产业调整的机遇;加强与东盟各国重点研究学科与优先发展产业一致的领域合作,以提高科技合作效率。

关键词： “一带一路” 东盟重点研究学科优先发展产业国际科技合作

Anomaly Detection of Controllable Electric Vehicles through Node Equation against Aggregation Attack

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Computers, Materials & Continua 2025年第1期82卷 427-442页

作者： jing Guo Ziying wang Yajuan Guo Haitao Jiang State Grid Jiangsu Electric Power Co. Ltd.Research InstituteState Grid Corporation of ChinaNanjing211100China

The rapid proliferation of electric vehicle(EV)charging infrastructure introduces critical cybersecurity vulnerabilities to power grids *** study presents an innovative anomaly detection framework for EV charging stations,addressing the unique challenges posed by third-party aggregation *** approach integrates node equations-based on the parameter identification with a novel deep learning model,xDeepCIN,to detect abnormal data reporting indicative of aggregation *** employ a graph-theoretic approach to model EV charging networks and utilize Markov Chain Monte Carlo techniques for accurate parameter *** xDeepCIN model,incorporating a Compressed Interaction Network,has the ability to capture complex feature interactions in sparse,high-dimensional charging *** results on both proprietary and public datasets demonstrate significant improvements in anomaly detection performance,with F1-scores increasing by up to 32.3%for specific anomaly types compared to traditional methods,such as wide&deep and DeepFM(Factorization-Machine).Our framework exhibits robust scalability,effectively handling networks ranging from 8 to 85 charging ***,we achieve real-time monitoring capabilities,with parameter identification completing within seconds for networks up to 1000 *** research contributes to enhancing the security and reliability of renewable energy systems against evolving cyber threats,offering a comprehensive solution for safeguarding the rapidly expanding EV charging infrastructure.

关键词： Anomaly detection electric vehicle aggregation attack deep cross-network

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阿胶真伪品的X射线荧光光谱的鉴别研究

光谱学与光谱分析 2007年第9期27卷 1866-1868页

作者：王文静关颖朱艳英燕山大学理学院河北秦皇岛066004

建立了快速鉴别阿胶真伪的新方法。收集6个不同产地的阿胶样品,采用X射线荧光光谱法(XRF)测定了各样品元素种类、含量并作出了元素特征谱,与阿胶对照品的元素特征谱作对比分析。结果表明:6个样品中共有的主要元素为Ca,Na,Cl,K,Fe,Zn,Al... 详细信息

建立了快速鉴别阿胶真伪的新方法。收集6个不同产地的阿胶样品,采用X射线荧光光谱法(XRF)测定了各样品元素种类、含量并作出了元素特征谱,与阿胶对照品的元素特征谱作对比分析。结果表明:6个样品中共有的主要元素为Ca,Na,Cl,K,Fe,Zn,Al和Mg等,但其中Cl,Ca,Na和K元素的含量却与对照品有着显著的差异,且部分特有微量元素只存在于个别样品中。依据这些不同点可以准确地对阿胶的真伪及伪劣品中有害元素的引入来源作出识别和判断。基于XRF法所作的元素特征谱可简捷快速、直观有效的鉴别阿胶真伪,有望应用于其他中药的鉴定。

关键词： X射线荧光分析阿胶元素真伪鉴别

Moment Redistribution Effect of the Continuous Glass Fiber Reinforced Polymer-Concrete Composite Slabs Based on Static Loading Experiment

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Structural Durability & Health Monitoring 2025年第1期19卷 105-123页

作者： Zhao-Jun Zhang wen-Wei wang jing-Shui Zhen Bo-Cheng Li De-Cheng Cai Yang-Yang Du Hui Huang Offshore Oil Engineering Co.Ltd. Tianjin300461China Department of Bridge Engineering School of TransportationSoutheast UniversityNanjing211189China

This study aimed to investigate the moment redistribution in continuous glass fiber reinforced polymer(GFRP)-concrete composite slabs caused by concrete cracking and steel bar yielding in the negative bending moment *** experimental bending moment redistribution test was conducted on continuous GFRP-concrete composite slabs,and a calculation method based on the conjugate beam method was *** composite slabs were formed by combining GFRP profiles with a concrete layer and supported on steel beams to create two-span continuous composite slab *** methods,epoxy resin bonding,and stud connection,were used to connect the composite slabs with the steel *** experimental findings showed that the specimen connected with epoxy resin exhibited two moments redistribution phenomena during the loading process:concrete cracking and steel bar yielding at the internal *** contrast,the composite slab connected with steel beams by studs exhibited only one-moment redistribution phenomenon throughout the loading *** the concrete at the internal support cracked,the bending moment decreased in the internal support section and increased in the midspan *** the steel bars yielded,the bending moment further decreased in the internal support section and increased in the mid-span *** GFRP profiles do not experience cracking,there was no significant decrease in the bending moment of the mid-span *** test specimens experienced compressive failure of concrete at the mid-span *** results showed good agreement between the calculated and experimental values of bending moments in the mid-span section and internal support *** proposed model can effectively predict the moment redistribution behavior of continuous GFRP-concrete composite slabs.

关键词： Moment redistribution GFRP-concrete composite slabs bending moment experimental study analysis model

包覆型Fe_(2)O_(3)@rGO负极材料的可控制备及其锂离子电池性能研究

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燃料化学学报（中英文） 2023年第10期51卷 1478-1486页

作者：齐慧王睿王文静韩红斐太原师范学院化学与材料学院山西晋中030619 江西理工大学材料冶金化学学部江西赣州341000

本研究通过溶剂热法成功制备还原氧化石墨烯包覆Fe_(2)O_(3)空心球复合物(Fe_(2)O_(3)@rGO),并对其结构和性能进行了表征和测试。结果表明,包覆型Fe_(2)O_(3)@rGO负极材料由于内部存在大量的Fe-O-C键,明显提升了电子传输速率,同时石墨... 详细信息

本研究通过溶剂热法成功制备还原氧化石墨烯包覆Fe_(2)O_(3)空心球复合物(Fe_(2)O_(3)@rGO),并对其结构和性能进行了表征和测试。结果表明,包覆型Fe_(2)O_(3)@rGO负极材料由于内部存在大量的Fe-O-C键,明显提升了电子传输速率,同时石墨烯的物理限域显著降低了电极材料的粉化速率,因此,包覆型Fe_(2)O_(3)@rGO电极材料表现出优异的倍率性能(在大电流5 A/g下具有514 mA·h/g的可逆容量)和长循环寿命(在0.5 A/g下循环500圈后,容量保持987 mA·h/g,保持率为81.1%)。此项工作为制备高倍率、长寿命的石墨烯复合负极材料提供了一种有效策略。

关键词： Fe_(2)O_(3) 空心球还原氧化石墨烯负极材料锂离子电池

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Experimental Study on Geometry Characteristics of Turbulent Premixed Flames for Natural Gas/Air Mixtures

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Journal of Thermal Science 2025年第1期34卷 268-282页

作者： ZHENG Weilin wang Qijiao XIAO Huahua CHEN Xiaoxiao XIE Fan ZENG wen Liaoning Key Lab of Advanced Test Technology for Aerospace Propulsion System Shenyang Aerospace University State Key Laboratory of Fire Science University of science and Technology of China AVIC Shenyang Aircraft Design and Research Institute

In this study,focusing on the geometry characteristics of spherical expanding flame,the turbulent premixed flames of natural gas/air mixtures were investigated in a fan-stirred turbulent *** effects of initial temperature（T=300-400 K）,initial pressure（P=0.1-0.3 MPa）,turbulence intensity（u'=1.0-2.7 m/s）,oxygen volumetric percentage(φ（O2）=15%-21%) and carbon dioxide volumetric percentage(φ（CO2）=0-20%)were delved *** flame profile under the Cartesian coordinate system was derived from the schlieren images taken by the high-speed ***,from both macroscopic and microscopic perspectives,the influence of experimental conditions on the flame geometry characteristics was explored through flame front extraction,wavelet decomposition and network *** results demonstrate that for significant flame wrinkling,changes in species concentrations and turbulence intensity have more pronounced effects on the flame wrinkling *** wrinkling of the flame front maintains a certain degree of similarity,as evidenced by the locally concentrated distribution of the angles of the maximum fluctuation *** disturbance energy under large-scale（D6-D8） disturbances exhibits relatively high values with a similar trend,exerting a significant impact on the geometry characteristics of the flame *** peaks of correlation degree are scattered either with the decomposition scale or the development of flame radius,indicating no linear correlation between different detail ***,the probability distribution of node degrees in key wrinkled regions exhibits different trends with that of large-scale wrinkling and disturbance energy,especially with changes in initial *** occurs because the number of key wrinkles varies based on the perturbation's strength or the region's ***,an increase in the fluctuation frequency of the flame's local radius may not necessarily lead to an increase in the number of key folded regions.

关键词： fan-stirred turbulent combustor geometry characteristics large-scale wrinkling network topology wavelet decomposition