The protrusion of the planning of numerical intelligent early-warning and tracking system in this study which can ease triggerman's work strength,lay the next generation intelligence supervision system foundation ...The protrusion of the planning of numerical intelligent early-warning and tracking system in this study which can ease triggerman's work strength,lay the next generation intelligence supervision system foundation and expand effectively the video resources use etc. In the numerical intelligent early-warning matrix sub-system,the authors have designed a kind dual-core system which includes both ARM and DSP,and designed detailedly traffic dynamics affairs early-warning arithmetic which bases on that system. And then,this system will carry quickly on fixing the right position of license plate,correcting the inclination degree of license plate,and thinning it to get the number of this license and severity grade. Secondly,in the rotated dome camera sub-system,the authors have designed three-dimensional trajectory mathematical model which makes use of a fuzzy PID controller to achieve the high- speed track. At last,Simulation shows that the proposed control method has high profile tracking precision,accuracy and robustness of the disturbance.展开更多
Through summarizing the prevalence characteristics of rice black-streaked dwarf virus disease(RBSDVD)in Linyi City of Shandong Province,this paper analyzed its prevalence is related to changes in farming and cultivati...Through summarizing the prevalence characteristics of rice black-streaked dwarf virus disease(RBSDVD)in Linyi City of Shandong Province,this paper analyzed its prevalence is related to changes in farming and cultivation systems,the increase in the population of venomous Laodelphax striatellus Fallén and its own migration and spread,the poor disease resistance of cultivated varieties,and inadequate time of prevention and control.Besides,based on the practice of local control,it came up with some comprehensive control measures including strengthening monitoring,early warning and forecasting,planting resistant(tolerant)rice varieties according to local conditions,appropriately delaying the sowing(planting)period,supplemented by insect nets to cover seedlings,and making scientific use of chemical control.It is expected to provide a reference for the prevention and control of RBSDVD.展开更多
The importance of food security,especially in combating the problem of acute hunger,has been underscored as a key component of sustainable development.Considering the major challenge of rapidly increasing demands for ...The importance of food security,especially in combating the problem of acute hunger,has been underscored as a key component of sustainable development.Considering the major challenge of rapidly increasing demands for both food security and safety,the management and control of major pests is urged to secure supplies of major agricultural products.However,owing to global climate change,biological invasion(e.g.,fall armyworm),decreasing agricultural biodiversity,and other factors,a wide range of crop pest outbreaks are becoming more frequent and serious,making China,one of the world’s largest country in terms of agricultural production,one of the primary victims of crop yield loss and the largest pesticide consumer in the world.Nevertheless,the use of science and technology in monitoring and early warning of major crop pests provides better pest management and acts as a fundamental part of an integrated plant protection strategy to achieve the goal of sustainable development of agriculture.This review summarizes the most fundamental information on pest monitoring and early warning in China by documenting the developmental history of research and application,Chinese laws and regulations related to plant protection,and the National Monitoring and Early Warning System,with the purpose of presenting the Chinese model as an example of how to promote regional management of crop pests,especially of cross border pests such as fall armyworm and locust,by international cooperation across pest-related countries.展开更多
作物病害是我国主要农业灾害之一,严重危害作物生长发育,威胁粮食安全。为宏观掌握作物病害的发展动态,了解作物病害监测和预警的研究前沿和应用热点,基于文献计量学方法,利用VOSviewer可视化软件,对2003—2022年间Web of Science核心...作物病害是我国主要农业灾害之一,严重危害作物生长发育,威胁粮食安全。为宏观掌握作物病害的发展动态,了解作物病害监测和预警的研究前沿和应用热点,基于文献计量学方法,利用VOSviewer可视化软件,对2003—2022年间Web of Science核心合集数据库收录的作物病害监测和预警研究的相关论文进行可视化分析,为作物病害研究者跟踪研究前沿、把握研究方向提供理论参考。结果表明:作物病害监测和预警领域发文量整体呈现逐步上升趋势,具有广阔的发展前景;中国是作物病害监测和预警研究领域发文数量最多的国家,但研究成果质量需进一步提升;核心作者之间已形成固定的核心研究团队,发文量最多的作者来自以黄文江、张竞成、康振生和Varshney为代表的研究团队;研究成果主要刊载在Frontiers in Plant Science、Plant Disease和Computers and Electronics in Agriculture期刊上;发文的主要机构有美国农业部农业研究局、中国科学院和中国农业科学院;抗病基因育种、PCR诊断作物病害、卷积神经网络和深度学习分类作物病害和遥感监测作物植被指数是近20年来该领域研究的重点和热点。综合来看,作物病害监测和预警研究具有较强的应用前景,但面临的挑战仍很大,需要突破现有技术手段,多种技术相融合,推动作物病害监测和预警向着更加智能化、精准化的方向发展。展开更多
目的/意义系统梳理基于互联网数据的传染病预测模型相关研究,助力实现传染病监测关口前移,为构建传染病智慧化立体防治体系提供参考。方法/过程对Web of Science核心数据库和中国知网收录的近20年基于互联网数据的传染病监测预警研究发...目的/意义系统梳理基于互联网数据的传染病预测模型相关研究,助力实现传染病监测关口前移,为构建传染病智慧化立体防治体系提供参考。方法/过程对Web of Science核心数据库和中国知网收录的近20年基于互联网数据的传染病监测预警研究发展历程及研究方向进行梳理,分析当前主要问题与挑战,总结常见预测模型及其优化方向。结果/结论互联网传染病监测研究呈监测疾病多样化、数据来源精细化和专业化等趋势。由于互联网数据的复杂性和不确定性,现有模型大多仅适用于短时或实时预测。通过构建组合模型、加强多源数据融合、完善关键词与影响因素选择等方式,可进一步优化模型,加强拟合效果和预测能力。展开更多
基金Supported by the National Basic Research Program of China(No.2011CB707000)Science and Technology Development Program of Shandong Province(No.J13LC51,2011XH17006)Independent Innovation Program of Ji’nan Colleges and Universities(No.201401213)
文摘The protrusion of the planning of numerical intelligent early-warning and tracking system in this study which can ease triggerman's work strength,lay the next generation intelligence supervision system foundation and expand effectively the video resources use etc. In the numerical intelligent early-warning matrix sub-system,the authors have designed a kind dual-core system which includes both ARM and DSP,and designed detailedly traffic dynamics affairs early-warning arithmetic which bases on that system. And then,this system will carry quickly on fixing the right position of license plate,correcting the inclination degree of license plate,and thinning it to get the number of this license and severity grade. Secondly,in the rotated dome camera sub-system,the authors have designed three-dimensional trajectory mathematical model which makes use of a fuzzy PID controller to achieve the high- speed track. At last,Simulation shows that the proposed control method has high profile tracking precision,accuracy and robustness of the disturbance.
基金the Genetic Breeding Post Construction Project of Rice Innovation Team for Modern Agricultural Industrial Technology System in Shandong Province of China(SDAIT-17-02).
文摘Through summarizing the prevalence characteristics of rice black-streaked dwarf virus disease(RBSDVD)in Linyi City of Shandong Province,this paper analyzed its prevalence is related to changes in farming and cultivation systems,the increase in the population of venomous Laodelphax striatellus Fallén and its own migration and spread,the poor disease resistance of cultivated varieties,and inadequate time of prevention and control.Besides,based on the practice of local control,it came up with some comprehensive control measures including strengthening monitoring,early warning and forecasting,planting resistant(tolerant)rice varieties according to local conditions,appropriately delaying the sowing(planting)period,supplemented by insect nets to cover seedlings,and making scientific use of chemical control.It is expected to provide a reference for the prevention and control of RBSDVD.
基金This study was supported by the National Natural Science Foundation of China(31727901 and 31901873).
文摘The importance of food security,especially in combating the problem of acute hunger,has been underscored as a key component of sustainable development.Considering the major challenge of rapidly increasing demands for both food security and safety,the management and control of major pests is urged to secure supplies of major agricultural products.However,owing to global climate change,biological invasion(e.g.,fall armyworm),decreasing agricultural biodiversity,and other factors,a wide range of crop pest outbreaks are becoming more frequent and serious,making China,one of the world’s largest country in terms of agricultural production,one of the primary victims of crop yield loss and the largest pesticide consumer in the world.Nevertheless,the use of science and technology in monitoring and early warning of major crop pests provides better pest management and acts as a fundamental part of an integrated plant protection strategy to achieve the goal of sustainable development of agriculture.This review summarizes the most fundamental information on pest monitoring and early warning in China by documenting the developmental history of research and application,Chinese laws and regulations related to plant protection,and the National Monitoring and Early Warning System,with the purpose of presenting the Chinese model as an example of how to promote regional management of crop pests,especially of cross border pests such as fall armyworm and locust,by international cooperation across pest-related countries.
文摘作物病害是我国主要农业灾害之一,严重危害作物生长发育,威胁粮食安全。为宏观掌握作物病害的发展动态,了解作物病害监测和预警的研究前沿和应用热点,基于文献计量学方法,利用VOSviewer可视化软件,对2003—2022年间Web of Science核心合集数据库收录的作物病害监测和预警研究的相关论文进行可视化分析,为作物病害研究者跟踪研究前沿、把握研究方向提供理论参考。结果表明:作物病害监测和预警领域发文量整体呈现逐步上升趋势,具有广阔的发展前景;中国是作物病害监测和预警研究领域发文数量最多的国家,但研究成果质量需进一步提升;核心作者之间已形成固定的核心研究团队,发文量最多的作者来自以黄文江、张竞成、康振生和Varshney为代表的研究团队;研究成果主要刊载在Frontiers in Plant Science、Plant Disease和Computers and Electronics in Agriculture期刊上;发文的主要机构有美国农业部农业研究局、中国科学院和中国农业科学院;抗病基因育种、PCR诊断作物病害、卷积神经网络和深度学习分类作物病害和遥感监测作物植被指数是近20年来该领域研究的重点和热点。综合来看,作物病害监测和预警研究具有较强的应用前景,但面临的挑战仍很大,需要突破现有技术手段,多种技术相融合,推动作物病害监测和预警向着更加智能化、精准化的方向发展。
文摘目的/意义系统梳理基于互联网数据的传染病预测模型相关研究,助力实现传染病监测关口前移,为构建传染病智慧化立体防治体系提供参考。方法/过程对Web of Science核心数据库和中国知网收录的近20年基于互联网数据的传染病监测预警研究发展历程及研究方向进行梳理,分析当前主要问题与挑战,总结常见预测模型及其优化方向。结果/结论互联网传染病监测研究呈监测疾病多样化、数据来源精细化和专业化等趋势。由于互联网数据的复杂性和不确定性,现有模型大多仅适用于短时或实时预测。通过构建组合模型、加强多源数据融合、完善关键词与影响因素选择等方式,可进一步优化模型,加强拟合效果和预测能力。
