In order to improve the quality and efficiency of agriculture,increase farmers'income steadily and rapidly,and improve the ecological environment of agriculture,a strong city of organic agriculture should be const...In order to improve the quality and efficiency of agriculture,increase farmers'income steadily and rapidly,and improve the ecological environment of agriculture,a strong city of organic agriculture should be constructed in Nanchong City.Based on ecological agriculture,Nanchong makes great efforts to build a strong city of organic agriculture,takes environmental protection supervision as an opportunity to promote sustainable agricultural development feasibly,takes regional brands as the starting point,and promotes the development of agricultural brand.The main measures and achievements of the development of organic agriculture in Nanchong City are analyzed and discussed starting with the next work plan.展开更多
In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of considera...In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of consideration in many cases.In PSA models and applications associated with NPPs the risk importance of a particular feature(e.g.function,system,component,failure mode or operator action)can be,most generally,divided into two categories:importance with respect to risk increase potential and importance with respect to risk decrease potential.The representative of the first category,as used for practical purposes,is RAW(risk achievement worth).Representative of the second category,as mentioned in consideration of risk importance,is RRW(risk reduction worth).It can be shown that the two risk importance measures,RAW and RRW,are dependent on each other.The only parameter in this mutual dependency is probability of failure of the considered feature.The paper discusses the relation between RAW and RRW and some of its implications,including those on the general strategies for the reduction of risk imposed for the operation of the considered facility.Two general risk reduction strategies which are considered in the discussion are:a)risk reduction by decreasing the failure probability of the considered feature;and b)risk reduction while keeping the failure probability of the considered feature at the same level.Simple examples are provided to illustrate the differences between two strategies and point to main issues and conclusions.展开更多
In China,operational in-situ marine monitoring is the primary means of directly obtaining hydrological,meteorological,and oceanographic environmental parameters across sea areas,and it is essential for applications su...In China,operational in-situ marine monitoring is the primary means of directly obtaining hydrological,meteorological,and oceanographic environmental parameters across sea areas,and it is essential for applications such as forecast of marine environment,prevention and mitigation of disaster,exploitation of marine resources,marine environmental protection,and management of transportation safety.In this paper,we summarise the composition,development courses,and present operational status of three systems of operational in-situ marine monitoring,namely coastal marine automated network station,ocean data buoy and voluntary observing ship measuring and reporting system.Additionally,we discuss the technical development in these in-situ systems and achievements in the key generic technologies along with future development trends.展开更多
基金Supported by National Modern Agricultural Demonstration Zone Project of the Ministry of Agriculture[Nong Ji Fa(2010)22]Pilot Project of Agricultural Reform and Construction in the National Modern Agricultural Demonstration Zone of the Ministry of Agriculture and the Ministry of Finance[Nong Cai Fa(2013)13]National Agricultural Science and Technology Park Project of the Ministry of Science and Technology[Guo Ke Ban Nong(2015)9]
文摘In order to improve the quality and efficiency of agriculture,increase farmers'income steadily and rapidly,and improve the ecological environment of agriculture,a strong city of organic agriculture should be constructed in Nanchong City.Based on ecological agriculture,Nanchong makes great efforts to build a strong city of organic agriculture,takes environmental protection supervision as an opportunity to promote sustainable agricultural development feasibly,takes regional brands as the starting point,and promotes the development of agricultural brand.The main measures and achievements of the development of organic agriculture in Nanchong City are analyzed and discussed starting with the next work plan.
文摘In using risk-informed approaches for ensuring safety of operating NPPs(nuclear power plants),risk importance measures obtained from PRAs(probabilistic risk assessments)of the plants are integral elements of consideration in many cases.In PSA models and applications associated with NPPs the risk importance of a particular feature(e.g.function,system,component,failure mode or operator action)can be,most generally,divided into two categories:importance with respect to risk increase potential and importance with respect to risk decrease potential.The representative of the first category,as used for practical purposes,is RAW(risk achievement worth).Representative of the second category,as mentioned in consideration of risk importance,is RRW(risk reduction worth).It can be shown that the two risk importance measures,RAW and RRW,are dependent on each other.The only parameter in this mutual dependency is probability of failure of the considered feature.The paper discusses the relation between RAW and RRW and some of its implications,including those on the general strategies for the reduction of risk imposed for the operation of the considered facility.Two general risk reduction strategies which are considered in the discussion are:a)risk reduction by decreasing the failure probability of the considered feature;and b)risk reduction while keeping the failure probability of the considered feature at the same level.Simple examples are provided to illustrate the differences between two strategies and point to main issues and conclusions.
基金The National Key Research and Development Program of China under contract No.2022YFC3104200the Key R&D Program of Shandong Province,China under contract No.2023ZLYS01+3 种基金the Consulting and Research Project of the Chinese Academy of Engineering under contract Nos 2022-XY-21,2022-DFZD-35,2023-XBZD-09 and 2021-XBZD-13the Major Innovation Special Project of Qilu University of Technology(Shandong Academy of Sciences),Science Education Industry Integration Pilot Project under contract No.2023HYZX01Special Funds for“Mount Taishan Scholars”Construction Projectthe Special Funds of Laoshan Laboratory.
文摘In China,operational in-situ marine monitoring is the primary means of directly obtaining hydrological,meteorological,and oceanographic environmental parameters across sea areas,and it is essential for applications such as forecast of marine environment,prevention and mitigation of disaster,exploitation of marine resources,marine environmental protection,and management of transportation safety.In this paper,we summarise the composition,development courses,and present operational status of three systems of operational in-situ marine monitoring,namely coastal marine automated network station,ocean data buoy and voluntary observing ship measuring and reporting system.Additionally,we discuss the technical development in these in-situ systems and achievements in the key generic technologies along with future development trends.
