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Infectious Disease Modelling 2021年第1期6卷 988-996页

作者： Fan Xia xinpei yang Robert A.Cheke Yanni Xiao School of Mathematics and Statistics Xi'an Jiaotong UniversityXi'an710049China School of Mathematics and Statistics Shaanxi Normal UniversityXi'an710119China Natural Resources Institute University of Greenwich at MedwayCentral AvenueChatham MaritimeKentME44BUK

The SARS-CoV-2 Delta variant,known as B.1.617.2 and first identified in India,is becoming a dominant strain in many countries due to its extreme *** and quantifying the transmissibility and competitive advantage of the Delta variant is of major significance for countries around the world so that appropriate measures to mitigate and even eliminate the epidemic can be *** at such problems,we proposed a method to model the invasion process of a novel strain and estimate the competitive advantage of the invading strain over the local *** applied this method to study the invasion and spread of the Delta variant into *** have estimated the basic reproduction number of the Delta variant as being 49%higher than that of the Alpha variant(CI:45-52%),assuming a mean generation interval of 5 days with a standard deviation of 3 *** the period 11 April to 17 May 2021,the effective reproduction number of the Delta variant was 65%higher than that of the Alpha variant in England(CI:61-70%).Our results show that the Delta variant has a significantly higher transmission capacity than other strains,which explains the rebound of the epidemic in many countries,even in those with relatively high vaccination coverages.

关键词： COVID-19 SARS-CoV-2 Delta variant Competitive advantage Reproduction number

城市污水生物处理过程中SMP与EPS的光谱特性和荷电特征

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环境工程学报 2017年第3期11卷 1395-1401页

作者：杨毅马新培杨霞霞西安建筑科技大学环境与市政工程学院西安710055

通过研究城市污水生物处理过程中可溶性微生物产物(SMP)和胞外聚合物(EPS)的光谱特性和荷电特征,进ー步阐明城市污水生物处理各阶段SMP和EPS的结构特征。结果表明:污水生物处理过程中SMP主要含有低激发波长类色氨酸和类腐殖酸,可能还含... 详细信息

通过研究城市污水生物处理过程中可溶性微生物产物(SMP)和胞外聚合物(EPS)的光谱特性和荷电特征,进ー步阐明城市污水生物处理各阶段SMP和EPS的结构特征。结果表明:污水生物处理过程中SMP主要含有低激发波长类色氨酸和类腐殖酸,可能还含有高激发波长类色氨酸和类富里酸其中类腐殖酸物质在此过程中逐渐被降解。紧密黏附型胞外聚合物(TB-EPS)与松散附着型胞外聚合物(LB-EPS)主要含有类色氨酸、类富里酸和类腐殖酸。此外LB-EPS和TB-EPS还分别含有低激发波长类色氨酸和另一种类腐殖酸(λ_(Ex)/λ_(Em)=(420±425)nm/(470±475)nm)。SMP、LB-EPS和TB-EPS的荧光指数分别为1.78±2.13,1.57±1.68,1.21±1.40其来源分別主要是生物来源、生物来源和陆源、陆源。且LB-EPS的荧光指数在厌氧处理阶段降低表明其所含腐殖质的芳香性增强TB-EPS则相反。三者的Zeta电位值在-11^-24 mV内,且其绝对值随生物处理进行而降低其中TB-EEPS的Zeta电位值变化相对较小。

关键词：污水生物处理过程 SMP EPS 光谱特性荷电特性

地闪回击电磁场对架空线路耦合过电压的数值模拟

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高原气象 2014年第4期33卷 1146-1153页

作者：刘晓东张其林冯旭宇杨新培刘佼李晨内蒙古雷电预警防护中心呼和浩特010051 南京信息工程大学大气物理学院南京210044 内蒙古生态与农业气象中心呼和浩特010051 南京市气象局南京210008 成都信息工程学院电子工程学院成都610225

为了研究地闪回击通道周围的电磁场对架空线路的耦合过电压,首先采用指数衰减传输线型工程回击模式(MTLE)模拟分析了回击通道周围电磁场的分布特征,然后运用以Agrawal模型为基础的场—线耦合程序对架空线路感应过电压进行了数值计算,并... 详细信息

为了研究地闪回击通道周围的电磁场对架空线路的耦合过电压,首先采用指数衰减传输线型工程回击模式(MTLE)模拟分析了回击通道周围电磁场的分布特征,然后运用以Agrawal模型为基础的场—线耦合程序对架空线路感应过电压进行了数值计算,并将模拟计算结果与人工引雷实验结果进行比较,所得线路过电压的计算结果与实验数据基本相符。模拟结果表明,地闪回击电场的垂直分量和水平分量都应考虑到场—线耦合机制中;回击通道基电流波形的陡度同时影响到架空线路感应过电压的幅值和陡度,而电流幅值只影响感应过电压的幅值;当观测距离较近(50 m)时,架空线路上感应过电压幅值与电流回击速度呈反相关;随着观测距离的增加,架空线路上感应过电压波形上升沿时间增加、幅值减小;此外,架空线路感应过电压幅值随线路高度和接地电阻的增加而增大,与线路长度和直径的变化无关。

关键词：雷电电磁场架空线路感应过电压数值模拟

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集宁市第六中学的防雷工程设计

内蒙古气象 2013年第1期 45-47页

作者：董泽民杨新培吴艳铎乌兰察布市气象局内蒙古集宁012000 内蒙古雷电预警防护中心内蒙古呼和浩特010051

文章就集宁区第六中学综合楼的地理位置、气象条件等,对该建筑物进行了风险评估,依据评估结果,对该建筑物进行了方案设计,具体措施包括:接地体、屏蔽、合理布线等,经实践检验,达到了较好的效果。

关键词：接闪器接地屏蔽等电位连接

A distributed coding-decoding-based Nash equilibrium seeking algorithm over directed communication network

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Science China(Technological Sciences) 2023年第7期66卷 1975-1986页

作者： RAO xinpei XU WenYing yang ShaoFu YU WenWu School of Mathematics Southeast UniversityNanjing 211189China School of Computer Science and Engineering Southeast UniversityNanjing 211189China Purple Mountain Laboratories Nanjing 211111China

This paper is concerned with the distributed Nash equilibrium(NE) computation problem for non-cooperative games subject to partial-decision *** the purpose of congestion mitigation,coding-decoding-based schemes are constructed on the basis of logarithmic and uniform quantizers,*** be specific,the data(decision variable) are first mapped to codewords by an encoder scheme,and then sent to the neighboring agents through a directed communication network(with non-doubly stochastic weighted matrix).By using a decoder scheme,a new distributed algorithm is established for seeking the *** order to eliminate the convergence error caused by quantization,a dynamic variable is introduced and a modified codingdecoding-based algorithm is constructed under the uniform quantization scheme,which ensures the asymptotic convergence to the *** proposed algorithm only requires that the weighted adjacency matrix is row stochastic instead of double ***,one numerical example is provided to validate the effectiveness of our algorithms.

关键词： non-cooperative games quantization coding-decoding projected pseudo-gradient dynamics

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加油站雷电灾害风险评估探讨

内蒙古气象 2013年第5期 32-34,44页

作者：徐学文云利俊杨新培内蒙古雷电预警防护中心内蒙古呼和浩特010051 呼和浩特市气象局内蒙古呼和浩特010051

文章通过分析加油站所在地区的气象和地理环境、雷暴活动以及加油站内外的各项特征,对加油站进行了雷电灾害风险评估,通过评估出来的人员生命损失的风险值(R1为1.52×10-5)和容许值(R t为10-5)进行比较,确定出需要对该加油站采取防雷措... 详细信息

文章通过分析加油站所在地区的气象和地理环境、雷暴活动以及加油站内外的各项特征,对加油站进行了雷电灾害风险评估,通过评估出来的人员生命损失的风险值(R1为1.52×10-5)和容许值(R t为10-5)进行比较,确定出需要对该加油站采取防雷措施或采取何种程度的防雷措施,并从安装SPD等级及方法、防火系统、以及内外等电位连接方面提出了减少雷击导致的建筑物或服务设施的可能损失的参考解决方案。

关键词：加油站雷电损害风险评估

基于空间集聚视角的江苏省科技服务示范区建设发展

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江苏科技信息 2017年第3期34卷 1-3页

作者：孙欣沛杨艳红陆建玲江苏省生产力促进中心江苏南京210042

为完善科技服务体系,2012年江苏大胆探索科技服务示范区建设,集聚服务资源、布局服务载体,促进科技服务业的发展。文章从空间集聚的角度分析江苏科技服务示范区建设的现状、存在的问题,提出科技服务示范区的发展的意见建议,为今后江苏... 详细信息

为完善科技服务体系,2012年江苏大胆探索科技服务示范区建设,集聚服务资源、布局服务载体,促进科技服务业的发展。文章从空间集聚的角度分析江苏科技服务示范区建设的现状、存在的问题,提出科技服务示范区的发展的意见建议,为今后江苏科技服务业集聚区的发展提供参考。

关键词：科技服务空间集聚建议江苏

Graph representation learning-based residential electricity behavior identification and energy management

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Protection and Control of Modern Power Systems 2023年第2期8卷 218-230页

作者： xinpei Chen Tao Yu Zhenning Pan Zihao Wang Shengchun yang School of Electric Power Engineering South China University of TechnologyGuangzhou 510640China China Electric Power Research Institute Nanjing 210003China

It is important to achieve an efficient home energy management system(HEMS)because of its role in promoting energy saving and emission reduction for *** critical issues in an efficient HEMS are identification of user behavior and energy management ***,current HEMS methods usually assume perfect knowledge of user behavior or ignore the strong correlations of usage habits with different *** can lead to an insuffi-cient description of behavior and suboptimal management *** address these gaps,this paper proposes non-intrusive load monitoring(NILM)assisted graph reinforcement learning(GRL)for intelligent HEMS decision ***,a behavior correlation graph incorporating NILM is introduced to represent the energy consumption behavior of users and a multi-label classification model is used to monitor the ***,efficient identification of user behavior and description of state transition can be ***,based on the online updating of the behavior correlation graph,a GRL model is proposed to extract information contained in the ***,reliable strategy under uncer-tainty of environment and behavior is ***,the experimental results on several datasets verify the effec-tiveness of the proposed model.

关键词： Behavior correlation graph Graph reinforcement learning Home energy management system Multi-label classification Non-intrusive load monitoring

Bacteria-assisted delivery and oxygen production of nano-enzyme for potent radioimmunotherapy of cancer

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Nano Research 2022年第8期15卷 7355-7365页

作者： Jing Ni Hailin Zhou Jingyu Gu xinpei Liu Jie Chen Xuan Yi Kai yang State Key Laboratory of Radiation Medicine and Protection School of Radiation Medicine and Protection&School for Radiological and Interdisciplinary Sciences(RADX)Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhou 215123China School of Pharmacy Jiangsu Key Laboratory of Inflammation and Molecular Drug TargetsNantong UniversityNantong 226001China Dushu Lake Hospital Affiliated to Soochow University Medical Center of Soochow UniversitySuzhou 215123China

Tumor-targeting attenuated Salmonella could induce certain antitumor therapeutic effect through its proliferation characteristic and the consequent activated immune response,while host defense cells represented by neutrophils would trap and eliminate these invading bacteria via producing excess hydrogen peroxide(H_(2)O_(2))-including reactive oxygen species in the bacteriainfected tumor,thereby impairing the efficacy of the bacteria treatment of ***,we attempt to combine bacteria treatment and oxygen-dependent radioimmunotherapy of tumor through injection of neutrophil-targeted nano-catalase into the bacteria-treated mice for perfect tumor treatment *** albumin is used to coat catalase and deliver it to the neutrophils infiltrated in bacteria-infected tumor *** advantage of the generating H_(2)O_(2)by neutrophils,easily-diffused oxygen is produced and spread the whole tumor under the catalysis of nano-enzyme,leading to enhanced radiotherapy of hypoxic tumor ***,the optimized tumor microenvironment,synergistically caused by potent immune-stimulation of bacteria,generating oxygen and tumor radiotherapy,would boost the antitumor *** novel combination therapy strategy holds great promise to provide new ideas for future clinical cancer treatment.

关键词： bacteria neutrophil hydrogen peroxide denatured albumin radiotherapy

Modifying regeneration strategies classification to enhance the understanding of dominant species growth in fire-prone forest in Southwest China

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Forest Ecosystems 2022年第1期9卷 94-102页

作者： Caifang Luo Yueqiang Liu Zehao Shen Kang yang xinpei Wang Youxu Jiang Department of Ecology College of Urban and Environmental ScienceThe MOE Laboratory of Earth Surface ProcessesPeking UniversityBeijing100871China Yunnan Appraisal Center for Ecological and Environmental Engineering Kunming 650228China Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration Research Institute of Forest EcologyEnvironment and ProtectionChinese Academy of ForestryBeijing100091China

Background:In fire-prone ecosystems,plant species having different post-fire regeneration strategies(PFRS)coexist at the local scale while showing different growth *** evaluate the effect of PFRS on species regeneration,we investigated the plant communities burned in different years in the central Yunnan Province,Southwest *** indicators describing plant growth and population importance were measured to compare the regeneration of four dominant tree species,including one facultative seeders(FS)and three obligate resprouters(OR).Partial correlation and mixed linear effect modeling were applied to disentangle the contribution of intrinsic and environmental factors to the interspecific variation in post-fire ***:We identified two subtypes of plant growth strategy in the early post-fire stage for OR species;i.e.,number growth(ORþN)priority and height growth(ORþH)priority for sprouting ***,the FS and OR species varied in height growth rate with different temporal *** ORþN species occupied post-fire space horizontally with more resprouts and larger coverage than ORþH and FS species at the earlier *** contrast,the ORþH species generally had far less resprouts per clump,more variations in stem height and basal *** analysis showed that the variation of post-fire plant regeneration was not effectively explained by environmental factors(R2<20%);however,the linear mixed models with the modified PFRS as a random effect substantially increased the ***:The differentiated regeneration dynamics and growth priorities in the four dominant tree species indicated a critical dichotomy of habitat occupation strategy for the resprouter species during the early stage of post-fire forest *** study uncovered a trade-off between height versus number growth priority in the post-fire tree growth strategy and provides a novel perspective in understanding the living space occupying(niche partit

关键词： Post-fire regeneration strategies Species coexistence Growth priority Subtropical forest Facultative seeder Obligate resprouter