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非高斯杂波中知识辅助的信号检测算法

信号处理 2012年第1期28卷 60-66页

作者：邹鲲赵修斌田孝华谢洪森西安电子科技大学雷达信号处理国家重点实验室陕西西安710071 空军工程大学电讯工程学院陕西西安710077 海军航空工程学院山东青岛266041

杂波的非高斯性会严重影响到常规信号检测算法的性能,提高非高斯杂波中信号检测性能是雷达信号检测领域的一个研究重点。本文考虑了一种在非高斯杂波中,利用先验信息进行信号检测的方法。假定杂波统计特性满足复合高斯模型,即可以表示... 详细信息

杂波的非高斯性会严重影响到常规信号检测算法的性能,提高非高斯杂波中信号检测性能是雷达信号检测领域的一个研究重点。本文考虑了一种在非高斯杂波中,利用先验信息进行信号检测的方法。假定杂波统计特性满足复合高斯模型,即可以表示为散斑分量与纹理分量的乘积。选择逆伽马分布作为纹理分量的先验分布,基于贝叶斯方法,给出了一种知识辅助的信号检测算法。计算机仿真结果表明,该检测算法的检测性能优于常规的自适应检测算法。进一步,本文采用McMaster大学的IPIX雷达海杂波数据作为研究对象,利用最大似然估计获得杂波非高斯性的先验信息,分析了该算法在实测数据中的检测性能。分析结果表明,在不同的雷达分辨率海杂波中,该算法也具有较好的检测性能。

关键词：信号检测知识辅助逆伽马分布纹理分量

Rail Flatness and Verticality Measurement System Based on Ruler Model

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Wuhan University Journal of Natural Sciences 2020年第6期25卷 547-554页

作者： YANG Haima zou Xinglin ZHOU Zhendong ZHANG Dawei YANG Yutuan LI Jun QIAN Longping jiaNG Shenghua School of Optical-Electrical and Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China Shanghai Ruinu Machinery Crop Shanghai 200120China

Currently,the manual contact rail measurement that was basically adopted in China has low detection efficiency,poor accuracy and poor *** order to improve the function of the system,we propose a non-contact measurement method based on the flatness and verticality ruler *** flatness measurement model was built by employing the string measurement *** addition,the verticality measurement model was built by the dihedral method to measure the rail *** extracting curvature information of feature points,in this system,each laser sensor is used to collect rail profile curves.A large number of three-dimensional point clouds data are generated by the unit quaternion method of coordinate transformation,and the contour curves of the characteristic points of the four laser sensors are matched with the corresponding point sets one to one,and the rail contour splicing is finally *** experimental results show that this method has better measurement effect compared with the traditional manual measurement method.

关键词： laser profiler point cloud splicing verticality measurement flatness measurement rail quality evaluation ruler model non-contact

Efficacy of 40-O-（2-hydroxyethyl）-Rapamycin in Treating Chronic Allograft Nephropathy in Rats

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器官移植内科学杂志 2008年第4期3卷 163-169页

作者： Hequn zou Weiguo Sui Qiang Yan Wenti Che Guimian zou Department of Nephrology The Fifth Affiliated Hospital of Sun Yat-sen University Zhuhai 519000 P.R.China Center of Transplantation No. 181 Central Hospital of PLA Guilin 541002 P.R.China

Benefits and limitations of biochar for climate-smart agriculture:a review and case study from China

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Biochar 2023年第1期5卷 1319-1342页

作者： Xiaomeng Bo Zhiwei Zhang Jinyang Wang Shumin Guo Zhutao Li Haiyan Lin Yawen Huang Zhaoqiang Han Yakov Kuzyakov jianwen zou Key Laboratory of Green and Low-Carbon Agriculture in Southeastern China Ministry of Agriculture and Rural AffairsCollege of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095China jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource UtilizationNanjing 210095China Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil ScienceUniversity of Gottingen37077 GottingenGermany Peoples Friendship University of Russia(RUDN University) 117198 MoscowRussia Institute of Environmental Sciences Kazan Federal University420049 KazanRussia

Biochar has gained significant attention in agricultural and environmental research over the last two *** comprehensive review evaluates the effects of biochar on soil organic carbon(SOC),emission of non-CO_(2) greenhouse gases,and crop yield,including related mechanisms and major influencing *** impacts of biochar on SOC,methane and nitrous oxide emissions,and crop yield are controlled by biochar and soil properties and management ***-temperature biochar produced from lignin-rich feedstocks may decrease methane and nitrous oxide emissions in acidic soils and strengthen long-term carbon sequestration due to its stable aromatic *** contrast,low-temperature biochar from manure may increase crop yield in low-fertility *** biochar to farmlands in China can increase SOC content by 1.9 Pg C and reduce methane and nitrous oxide emissions by 25 and 20 Mt CO_(2)-eq year^(−1),respectively,while increasing crop yields by 19%.Despite the increasing evidence of the positive effects of biochar,future research needs to explore the potential factors that could weaken or hinder its capacity to address climate change and secure crop *** conclude that biochar is not a universal solution for global cropland;however,targeted applications in fields,landscapes,or regional scales,especially in low fertility and sandy soils,could realize the benefits of biochar as a climate-smart measure.

关键词： Biochar Carbon sequestration Greenhouse gas Food security Mitigation potential

The Application of Embodied Cognitive Linguistics in the English Translation of Two-Part Allegorical Saying—An Analysis of Examples From A Dream of Red Mansions

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Sino-US English Teaching 2024年第7期21卷 337-342页

作者： HE jiamei zou jianling University of Shanghai for Science and Technology ShanghaiChina

As a kind of widely circulated folk language,two-part allegorical saying(“xiehouyu”)carries the wisdom of the Chinese people and is characterized with humor and vivid *** the two English translation versions of A Dream of Red Mansions as examples,this paper analyzes the English translation of two-part allegorical saying based on the core principle of Embodied Cognitive Linguistics(ECL),“Reality-Cognition-Language”,and explores how the English translation of two-part allegorical saying reflects the three dimensions of ECL.

关键词： two-part allegorical saying A Dream in Red Mansions Embodied Cognitive Linguistics translation

XML数据库在IEC 61850装置实时数据库中的应用

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电力系统自动化 2013年第20期37卷 132-135页

作者：张勇贾德顺邹国惠崔亮章兵广东电网公司珠海供电局广东省珠海市519001 国电南瑞科技股份有限公司江苏省南京市210061

在分析IEC 61850信息模型的基础上,提出了使用可扩展置标语言(XML)数据库作为IEC61850装置实时数据库的方法。研究了2种实时数据库的结构,即存储当前系统信息的静态库和存储系统事件的变位库,给出了这2种库完整的XML模式定义及应用程序... 详细信息

在分析IEC 61850信息模型的基础上,提出了使用可扩展置标语言(XML)数据库作为IEC61850装置实时数据库的方法。研究了2种实时数据库的结构,即存储当前系统信息的静态库和存储系统事件的变位库,给出了这2种库完整的XML模式定义及应用程序编程接口(API)定义,并基于此研究成果开发了完全符合IEC 61850信息模型的实时数据库,将其用于IEC 61850代理服务器。最后,通过现场检测验证了XML数据库应用于代理服务器的可行性和实用性。

关键词：实时数据库 IEC 61850 可扩展置标语言代理服务器

A Comparative Study of Timed And Untimed Writing Practice In College English Teaching of Writing

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Journal of Zhouyi Research 2014年第1期 49-51页

作者： zou Xue-qian College of Fundamental Education Sichuan Normal University Chengdu Sichuan 610000 China

Penumbra-targeted CircOGDH siRNA-loaded nanoparticles alleviate neuronal apoptosis in focal brain ischaemia

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Stroke & Vascular Neurology 2024年第2期9卷 134-144,I0396-I0413页

作者： Yanfang Liu Tianyuan Zhang Xing zou Zhongwen Yuan Yufeng Li jiankun Zang Niu He Lizhen He Anding Xu Dan Lu Department of Neurology and Stroke Center Jinan University First Affiliated HospitalGuangzhouGuangdongChina Department of Clinical Neuroscience Institute The First Affiliated Hospital of Jinan UniversityGuangzhouGuangdongChina Key Lab of Guangzhou Basic and Translational Research of Pan-vascular Diseases The First Affiliated Hospital of Jinan UniversityGuangzhouChina

Background Nanoparticles(NPs)are a class of substances that can be loaded with therapeutic agents delivered to specific *** our earlier research,we identified a neuron-derived circular RNA(circRNA),circular oxoglutarate dehydrogenase(CircOGDH),as a promising therapeutic target for acute ischaemic *** study dedicated to explore a prospective preliminary strategy of CircOGDH-based NP delivered to the ischaemic penumbra region in middle cerebral artery occlusion/reperfusion(MCAO/R)*** Immunofluorescence in primary cortex neurons and in vivo fluorescence imaging revealed endocytosis of Poly(lactide-co-glycolide)(PLGA)poly amidoamine(PAMAM)@CircOGDH small interfering RNA(siRNA)*** blotting analysis and CCK8 assay were performed to evaluate the apoptotic level in ischaemic neurons treated with PLGA–PAMAM@CircOGDH siRNA *** reverse transcription PCR experiments,mice behaviour test,T2 MRI analysis,Nissl and TdT-mediated dUTP nick end labeling(TUNEL)co-staining were performed to evaluate the apoptosis level of ischaemic penumbra neurons in MCAO/R *** evaluation of NPs in MCAO/R mice was detected by blood routine examination,liver and kidney function examination and HE *** PLGA–PAMAM@CircOGDH siRNA NPs were successfully *** of PLGA–PAMAM@CircOGDH siRNA NPs in ischaemic neurons alleviated neuronal apoptotic level in vitro and in ***,mice behaviour test showed that the neurological defects of MCAO/R mice were significantly alleviated after the tail injection of PLGA–PAMAM@CircOGDH siRNA NPs,and no toxic effects were *** In conclusion,our results suggest that PLGA–PAMAM@CircOGDH siRNA NPs can be delivered to the ischaemic penumbra region and alleviate neuron apoptosis in MCAO/R mice and in ischaemic neurons;therefore,our study provides a desirable approach for using circRNA-based NPs for the treatment of ischaemic stroke.

关键词： OGD routine loaded

A Study on the Factors Influencing the Income Gap between Urban and Rural Areas Based on State-space Model

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Asian Agricultural Research 2014年第9期6卷 1-6页

作者： Xiaofang zou Xueqin jiaNG School of Economics Yangtze University Research Center for Rural Development in Hubei Province

The increasingly widening income gap between urban and rural areas is affected by many factors. Using the stepwise regression analysis,we find that urbanization level,socio-economic development,education level,financial development scale and financial development efficiency have the greatest impact on the income gap between urban and rural areas. By cointegration test,it is found that there is a long-term equilibrium relationship between these five variables and the income gap between urban and rural areas. We build the state-space model to research the dynamic impact of these factors on the income gap between urban and rural areas. The results show that by improving the level of urbanization,we can effectively narrow the income gap between urban and rural areas,while socio-economic development,the improvement of education level,expansion of financial development scale and financial development efficiency all significantly expand the income gap between urban and rural areas.

关键词： Income gap between urban and rural areas State-spa