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一种基于中间件的RFID系统阅读器去冗余算法

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电子学报 2012年第5期40卷 965-970页

作者：吕石磊余顺争中山大学电子与通信工程系广东广州510006

冗余阅读器判别是大规模RFID系统性能优化的重要问题之一．本文基于EPE网络架构提出一种阅读器去冗余算法MRRE．该算法利用RFID中间件的标签信息判别冗余阅读器，不需阅读器对标签写入信息．仿真结果表明，MRRE算法比lEO＋RRE算法在冗... 详细信息

冗余阅读器判别是大规模RFID系统性能优化的重要问题之一．本文基于EPE网络架构提出一种阅读器去冗余算法MRRE．该算法利用RFID中间件的标签信息判别冗余阅读器，不需阅读器对标签写入信息．仿真结果表明，MRRE算法比lEO＋RRE算法在冗余阅读器检测率上提高了6．27％-20．80％，在系统处理的标签信息量上降低了4．50％．35．73％，而且在系统部署合理性方面更具优势．

关键词：射频识别中间件冗余阅读器

The Effects of Thickness and location of PCMon the Building’s Passive Temperature-Control–A Numerical Study

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Energy Engineering 2024年第3期121卷 681-702页

作者： Zhengrong shi JieRen Tao Zhang Yanming Shen College of Energy and Mechanical Engineering Shanghai University of Electric PowerShanghai201306China Research and Development Center Heatmate New Energy Technology Co.Ltd.Shanghai200090China Shanghai Non-Carbon Energy Conversion and Utilization Institute Shanghai Jiao Tong UniversityShanghai200240China

Building energy consumption and building carbon emissions both account for more than 20%of their total national values in *** employing phase change material(PCM)for passive temperature control shows a promising prospect in meeting the comfort demand and reducing energy consumption ***,there is a lack of more detailed research on the interaction between the location and thickness of PCM and indoor natural convection,as well as indoor temperature *** this study,the numerical model of a passive temperature-controlled building integrating the developed PCM module is established with the help of *** which,the actual weather condition of Beijing city is set as the boundary conditions and the indoor natural convection is simulated with the consideration of radiation *** effects of PCM’s thickness and location on the internal temperature field are analyzed and *** results show that the room could maintain within the human comfort temperature range with the longest ratio of 94.10%and the shortest ratio of 51.04%as integrating *** comparison,the value is only 26.70%without *** room’s maximum temperature fluctuation can also be improved;it could be lowered by 64.4%compared to the normal *** the quantity of PCM is sufficient,further increasing the PCM amount results in a temperature fluctuation reduction of less than 0.1°C and does not increase the comfort *** PCM on the wall induces an apparent variation in indoor temperature along the vertical ***,placing PCM on the roof can lead to a heat transfer rate difference of up to seven *** optimal placement of PCM depends on the difference between the environmental and phase change *** the difference is positive,placing PCM on the roof is more effective;conversely,the opposite *** to the results over the entire cycle,PCM application on vertical walls yields better *** significant diffe

关键词： Phase change materials passive temperature regulation numerical simulation temperature field

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小区间上的素变数三角和估计

数学学报（中文版） 2006年第3期49卷 693-698页

作者：吕广世山东大学数学与系统科学学院济南250100

设A(n)为von Mangoldt函数且实数θ=95-83^(1/2)/121.当xθ+ε≤y≤x时,本文对于所有的α∈[0,1]给出了指数和S2(x,y;α)=∑x0,估计式∑xlogx)-A在相同的y的范围内成立．

关键词：堆垒素数论圆法迭代方法

An unprotected vulnerable relict subtropical conifer-Keteleeria evelyniana: Its forests, populations, growth and endangerment by invasive alien plant species in China

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Plant Diversity 2024年第5期46卷 648-660页

作者： Cindy Q.Tang Min-Rui Du Huan-Chong Wang You-Cai shi Jia-le Zeng Shu-li Xiao Peng-Bin Han Jian-Ran Wen shi-Qian Yao Ming-Chun Peng Chong-Yun Wang Yong-Ping li Jordi lópez-Pujol Institute of Ecology and Geobotany College of Ecology and Environmental ScienceYunnan UniversityBuilding#3Guozhong DalouDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina College of life Sciences Yunnan UniversityShengming Kexueyuan Building#2Chenggong CampusDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina College of Natural Resources Yunnan UniversityChenggong CampusDongwaihuan South RoadUniversity TownChenggong New DistrictKunming 650504YunnanChina Botanic Institute of Barcelona(IBB CSIC-CMCNC)Passeig del Migdia s/nBarcelona 08038CataloniaSpain Escuela de Ciencias Ambientales Universidad Espíritu Santo(UEES)Samborondon 091650Ecuador

Relict subtropical coniferous forests in China face severe fragmentation,resulting in declining populations,and some are under significant threat from invasive alien *** the crucial importance of understanding forest dynamics,knowledge gaps persist,particularly regarding the impact of invasive plants on vulnerable natives like Keteleeria *** this study,we investigated the impact of invasive plants on the regeneration of forests dominated by ***,a subtropical relict species in southwestern *** this purpose,we characterized forest dynamics of 160 forest plots featuring *** as the primary dominant species and determined whether the presence of invasive plants was correlated with regeneration of *** identified four distinct forest types in which *** was *** found that radial growth of *** trees is faster in younger ageclasses today than it was for older trees at the same *** population structure of *** in each forest type exhibited a multimodal age-class ***,three forest types lacked established saplings younger than 10 years old,a situation attributed to the dense coverage of the invasive alien Ageratina *** invasive species resulted in a reduction of understory species ***,our analysis uncovered a significant negative correlation in phylogenetic relatedness(net relatedness index)between native and invasive alien plant species in eastern *** suggests closely related invasive species face heightened competition,hindering successful *** together,our findings indicate that successful establishment and habitat restoration of *** seedling/saplings require effective measures to control invasive plants.

关键词： Keteleeria evelyniana Age structure Regeneration Species diversity Invasive alien species Phylogenetic relatedness

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九个几乎相等的素数的立方之和

数学学报（中文版） 2006年第1期49卷 195-204页

作者：吕广世山东大学数学与系统科学学院济南250100

本文证明了每个充分大的奇数N.可以表为九个几乎相等的素数的立方之和, 即N=p13+…+p39,这里|Pj-3((N/9)^(1/2))|≤U=N1/3-2/555+ε,从而进一步深化了华罗庚教授的经典结果．我们利用Dirichlet多项式的混合型估计及一个新的迭代方法建... 详细信息

本文证明了每个充分大的奇数N.可以表为九个几乎相等的素数的立方之和, 即N=p13+…+p39,这里|Pj-3((N/9)^(1/2))|≤U=N1/3-2/555+ε,从而进一步深化了华罗庚教授的经典结果．我们利用Dirichlet多项式的混合型估计及一个新的迭代方法建立了这一结果．

关键词：堆垒素数论圆法迭代方法

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内脏感觉的检测方法

世界华人消化杂志 2006年第3期14卷 324-331页

作者：时乐卜平扬州大学医学院江苏省扬州市225001

内脏敏感性在功能性胃肠病的发病机制中得到越来越多的证实,其检测方法的研究也得到了重视.我们简要介绍了RⅢ反射反向抑制技术、恒压器检测技术、脑显像技术、黏膜电刺激方法和温度刺激方法在检测内脏敏感性中的应用．

关键词：内脏感觉 RⅢ反射反向抑制技术恒压器脑显像黏膜电刺激温度刺激

A meta-analysis of case-control studies on the combined effect of hepatitis B and C virus infections in causing hepatocellular carcinoma in China

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第二军医大学学报 2006年第5期27卷 488-488页

作者： shi J Zhu l liu S Xie WF Department of Gastroenterology Changzheng Hospital Second Military Medical University Shanghai 200003 China

We investigated whether concurrent infection by hepatitis B virus (HBV) and hepatitis C virus (HCV) in China, a hyperepidemic area for these infections, was associated with a higher risk of causing hepatocellular carcinoma (HCC) than each infection alone in a meta-analysis in China, 32 case-control studies involving 3 201 cases and 4 005 controls, identified from a computer-based literature search from 1966 to 2004. The pooled odds ratio and 95% confidence interval (CI) for HBsAg posi- tivity was 14.1 (95% CI: 10.6-18.8); for anti-HCV/HCV RNA positivity was 4.6 (95% CI: 3.6-5.9)% for HBsAg positivity and anti-HCV/HCV RNA negativity were 15.6 (95% CI: 11.5-21.3) ; for HBsAg negativity and anti-HCV/HCV RNA posi- tivity were 8.1 (95% CI: 5.0-13.0); and positivity for both HBsAg and anti-HCV/HCV RNA was 35. 7 (95% CI: 26.2- 48.5). We conclude that HBV and HCV infections are important independent risk factors for HCC in China,

关键词： HCV HBV 乙肝病毒感染丙肝病毒感染危险因素肝细胞癌

Theoretical design of polyazole based ligands for the separation of Am(Ⅲ)/Eu(Ⅲ)

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Chinese Chemical letters 2024年第8期35卷 406-412页

作者： lingling Su Qunyan Wu Congzhi Wang Jianhui lan Weiqun shi School of Nuclear Science and Technology University of South ChinaHengyang 421001China laboratory of Nuclear Energy Chemistry Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

The extraction of radioactive minor actinides(An(Ⅲ))from lanthanides(ln(Ⅲ))is an extremely impor-tant step in nuclear waste *** ligands with high-performance actinide-selectivity re-mains an essential *** works have reported that some polyazole based ligands exhibit good An(Ⅲ)/ln(Ⅲ)separation ***,we first evaluated the effects of different polyazole side chains on the Am(Ⅲ)/Eu(Ⅲ)selectivity by exploring three pyridine-derived polyazole ligands l^(1),l^(2)and l^(3)with 1,2,4-triazole,1,2,3-triazole,and pyrazole side chains,respectively,using scalar relativistic theoretical *** coordination structures,bonding properties and thermodynamic behaviors of Aml(NO_(3))_(3)and Eul(NO_(3))_(3)complexes were investigated,which clarifies that the side chains do affect the electronic structure of ligand and its selectivity for Am(Ⅲ)/Eu(Ⅲ)***,l^(1)with 1,2,4-triazole side chains exhibited the highest selectivity for Am(Ⅲ)over Eu(Ⅲ)while the lowest complexation ability for metal ions among the three pyridine-derived polyazole ***,we designed a new ligand l^(4)con-taining 1,2,4-triazole side chains and a preorganized phenanthroline ***,such a new ligand was verified to show stronger complexation ability and higher selectivity for Am(Ⅲ)/Eu(Ⅲ)ions than l^(1).This work clarifies the complexation nature of polyazole based ligands with Am(Ⅲ)/Eu(Ⅲ)ions and provides design strategies for highly efficient polyazole based ligands for An(Ⅲ)/ln(Ⅲ)separation.

关键词： Solvent extraction Am(Ⅲ)/Eu(Ⅲ)separation Polyazole based ligands Design strategy Density functional theory

Phylogenetic study on Scenedesmacae with the description of a new genus Coccoidesmus ***.(Chlorophyceae,Chlorophyta)and chloroplast genome analyses

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Journal of Oceanology and limnology 2024年第4期42卷 1272-1285页

作者： Qinghua WANG Ying HOU Yanhui lI Ying shi Guoxiang lIU College of Biological Sciences and Technology Taiyuan Normal UniversityJinzhong 030619China Shanxi Vocational University of Engineering Science and Technology Jinzhong 030619China Key laboratory of Algal Biology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China

Members of the family Scenedesmaceae are some of the most common algal taxa in inland ecosystems,and they are widely distributed in freshwaters,aerial,and sub-aerial *** the continuous updating of methods,the classic morphological taxonomy of this family needs to be *** recent years,many genera of Scenedesmaceae have been established via the use of molecular *** phylogenetic relationships within Scenedesmaceae were analyzed using different molecular markers and morphological data,and the new freshwater genus Coccoidesmus Wang,Hou et liu *** *** new species in this genus were also *** analysis based on tufA genes revealed that the new genus formed an independent clade closely related to ***,these two genera are characterized by significant morphological differences in colony arrangement and cell *** chloroplast genome of the type species was assembled and annotated,and analyses of genome structure and sequences were *** genome data could help clarify the phylogenetic relationships within this family.

关键词： phylogenetic Scenedesmaceae Coccoidesmus morphology chloroplast genome