This article deals with the issue of water system management and emergency management of water supply systems based on experience with the operation of water systems in EU （European Union） Member States. The options...This article deals with the issue of water system management and emergency management of water supply systems based on experience with the operation of water systems in EU （European Union） Member States. The options available for prevention/elimination of the hazard of limited drinking water supply to the public are described. Current climate and, in some countries, also the existing social conditions pose barriers to a smooth water supply to the public. Various hazards endangering the quality and amounts of water produced emerge. Since the risk of water supply outages due to natural or anthropogenic factors cannot be completely eliminated （for instance, hacker attacks pose a new threat to the water companies＇ control systems）, in other words, emergency situations where smooth water supply is disturbed cannot be ruled out, efforts must be made to at least minimise adverse impacts of such events on the users. Organisational and technical conditions minimising such hazards must be set up. A water production and distribution organization and management system must be introduced, which will be able to prevent and address such hazards and emergency situations. How to tackle this complex task in the real water system management conditions and to assure some minimal amount of water at least for strategic consumers is discussed in this article. The results of a water system operation risk analysis are presented, feasible methods to minimize such risks are described, and options to prevent and address such risks are proposed. A water company organisation and management system taking into account the possibility of development of emergency situations is set forth. Focus is on the use of a telemetric system as a system means that facilitates the prevention and possible addressing of any emergencies occurring during the operation of a water supply system.展开更多
With the continuous progress and development of communication technology, the communication industry is constantly updated, and the speed of communication technology and equipment is accelerating. Subsequently, the co...With the continuous progress and development of communication technology, the communication industry is constantly updated, and the speed of communication technology and equipment is accelerating. Subsequently, the construction management of communication engineering also needs to be more standardized and informationized, so as to improve the progress, quality, cost, scope, compliance, safety, communication risk and other aspects of communication engineering construction, reducing the labor cost and improving the economic benefits of communication enterprises.展开更多
Objective: In order to further explore and study the overall effect of implementing the management measures of child health care system on children's early growth and development. Methods: From October 2021 to Apr...Objective: In order to further explore and study the overall effect of implementing the management measures of child health care system on children's early growth and development. Methods: From October 2021 to April 2022, 98 children with early growth and development were studied in our hospital. Forty-nine children with early growth and development who implemented general health management were taken as the reference group, and 49 children with early growth and development who implemented child health care were taken as the research group. By comparing the nutritional disease related data, nursing satisfaction, growth and development related data and development quotient related data;Results: The early growth and development related data, nursing satisfaction and development quotient related data of 49 children in the research group who implemented the child health care measures were higher than those of 49 children in the reference group who implemented the common health management measures, while the nutritional disease related data were lower than those of 49 children in the reference group who implemented the common health management measures. Conclusion: The implementation of child health care can significantly improve the data related to children's growth and development, the actual satisfaction of care and the data related to development quotient, and reduce the data related to nutritional diseases, which is worthy of large-scale clinical use.展开更多
In order to realize the required scalable and adaptive system management, an interactive intelligent agency framework, iSMAcy （intelligent System Management Agency） , is proposed as an integrated solution to realize...In order to realize the required scalable and adaptive system management, an interactive intelligent agency framework, iSMAcy （intelligent System Management Agency） , is proposed as an integrated solution to realize distributed autonomoas system management. Firstly, it is a multiagent platform that supports inter-agent communication and cooperation. Secondly, the functional agents are based on intentional agent architecture that achieves balance between goal-directed behavior and situated reactive action. An example of applying the iSMAcy system to a network management environment has been described to illustrate and validate the scalable and adaptive management capability of the intelligent agency framework.展开更多
Objective: to explore and analyze the effect of traceability system management applied to the management of equipment in disinfection supply center. Methods: 200 devices were selected before and after the implementati...Objective: to explore and analyze the effect of traceability system management applied to the management of equipment in disinfection supply center. Methods: 200 devices were selected before and after the implementation of the retrospective system management. The control group was selected before the implementation, and the experimental group was selected after the implementation. Results: the quality management score of medical devices was significantly higher after the implementation of traceability system management than before. The satisfaction score was significantly higher after the implementation of traceability system management than before, P < 0.05. Conclusion: traceability system management has a significant effect in the management of disinfection supply center equipment, with high satisfaction of medical staff and good management effect, which is worthy of clinical promotion and application.展开更多
According to the analysis of the problem of contract management, financial settlement and placement of coal trucks in coal business, a study is made on the coal management system. This system combines B/S and C/S toge...According to the analysis of the problem of contract management, financial settlement and placement of coal trucks in coal business, a study is made on the coal management system. This system combines B/S and C/S together, and it also uses three-tire application of ASP.NET which sets up a business subsystem based on functional module management in vehicle. Additionally, MFC solves the problems in weighing management systems. This system goes with unit testing, integration testing, and system testing, and the whole process realizes an effective monitoring from coal trucks applying for delivery, checking in, and weighing to checking out. Besides, it also secures precise and accurate weighing data, and deals with the new coming coal contract in a faster way. The real project indicates this system wins a very good reputation and it is worthy of spreading in a broader context.展开更多
A physical isolation system based on PCI (peripheral component interconnect),embedded with intelligence card technology, strong identity authentication technology and securityaudit, etc., is introduced. The system can...A physical isolation system based on PCI (peripheral component interconnect),embedded with intelligence card technology, strong identity authentication technology and securityaudit, etc., is introduced. The system can physically isolate the internaland external networks. Thehardware of the system, including PCI interface control circuits, network interface circuits andlogic control circuits, is designed to automatically adapt its operation speed and mode to thenetwork and securely isolate the internal and external networks; the software of the system,including the security strategy management module, the security audit module, the database recordexchanging module, the file exchanging module and the mail exchanging module, is designed toefficiently exchange and manage the data transference between the internal and external networks.Also the driver of the system is implemented with Windows driver development kits (DDK) based onNetwork Driver Interface Specification (NDIS). The prototype ofthe system developed has beenemployed in the Police Fire Protection Bureau of Hubei Province, which performs consistently andefficiently. The technological cruxes discussed have practical values for related subjects.展开更多
Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Manage...Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Management and Climate Change”Special Collection Issue in the journal of Energy Engineering provide insights into the field of energy systems management and climate change.From an extended perspective,this study discusses the key issues,research methods and models for energy system management and climate change research.Comprehensive and accurate prediction of energy supply and demand,the evaluation on the energy system resilience to climate change and the coupling methodology application of both nature and social science field maybe the frontier topics around achieving sustainable development goals of energy systems.展开更多
The use of lithium-ion batteries(LIBs)-operated underground mining machinery has gained tremendous momentum as a result of their numerous advantages.This includes their high energy density,long cycle life,high voltage...The use of lithium-ion batteries(LIBs)-operated underground mining machinery has gained tremendous momentum as a result of their numerous advantages.This includes their high energy density,long cycle life,high voltage delivery,low heat release,stability,negligible memory efects,and low carbon footprint.Battery operated vehicles are also preferred in underground mines for their fexibility.They do not emit harmful pollutants during nominal operations,making the work environment safer for miners.However,thermal runaway(TR)incidents can occur which presents risks to miners and underground infrastructure.Therefore,it is crucial to understand battery operations and their failure mechanisms.This article outlines the advantages of LIBs,the necessary precautions for their safe operations underground,the conditions and impact of TR events,battery management systems,handling LIB fre emergencies,and the research opportunities to promote safer and widespread use.展开更多
采用文献回顾法对Web of Science、IEEE Xplore、JSTOR数据库进行迭代检索。首先,以区块链和各国对医疗保健系统的概念解释为依据,确定“区块链+医疗保健系统”概念;其次,分别从理论与实践创新角度,分析国外的区块链与医疗保健系统结合...采用文献回顾法对Web of Science、IEEE Xplore、JSTOR数据库进行迭代检索。首先,以区块链和各国对医疗保健系统的概念解释为依据,确定“区块链+医疗保健系统”概念;其次,分别从理论与实践创新角度,分析国外的区块链与医疗保健系统结合效果;最后,通过挖掘依托区块链技术运行医疗保健系统的优势与挑战,提出我国区块链技术支持下的医疗保健系统发展启示。结果表明:使用区块链技术能提高医疗保健系统的数据共享与存储能力,保证信息真实性和有效性,但区块链的应用也将带来系统标准化、安全隐私、成本效益、评价指标设计以及文化抵制等问题。展开更多
Achieving both high yield and high nitrogen use efficiency （NUE） simultaneously has become a major challenge with increased global demand for food, depletion of natural resources, and deterioration of environment. A...Achieving both high yield and high nitrogen use efficiency （NUE） simultaneously has become a major challenge with increased global demand for food, depletion of natural resources, and deterioration of environment. As the greatest consumers of N fertilizer in the world, Chinese farmers have overused N, and there has been poor synchrony between crop N demand and N supply because of limited understanding of the N uptake-yield relationship. To address this problem, this study evaluated the total and dynamic N requirement for different yield ranges of two major crops （maize and wheat）, and suggested improvements to N management strategies. Whole-plant N aboveground uptake requirement per grain yield （Nreq） initially deceased with grain yield improvement and then stagnated, and yet most farmers still believed that more fertilizer and higher grain yield were synonymous. When maize yield increased from 〈 7.5 to 〉 12.0 Mg ha-I, Nreq decreased from 19.8 to 17.0 kg Mg-1 grain. For wheat, it decreased from 27.1 kg Mg-1 grain for grain yield 〈 4.5 Mg ha-1 to 22.7 kg Mg-1 grain for yield 〉 9.0 Mg ha-1. Meanwhile, the percentage of dry matter and N accumulation in the middle-late growing season increased significantly with grain yield, which indicated that N fertilization should be concentrated in the middle-late stage to match crop demand while farmers often applied the majority of N fertilizer either before sowing or during early growth stages. We accordingly developed an integrated soil-crop system management strategy that simultaneously increases both grain yield and NUE.展开更多
File semantic has proven effective in optimizing large scale distributed file system.As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems,file system can provide ...File semantic has proven effective in optimizing large scale distributed file system.As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems,file system can provide useful and insightful information about semantic.Hence,file semantic mining has become an increasingly important practice in both engineering and research community.Unfortunately,it is a challenge to exploit file semantic knowledge because a variety of factors coulda ffect this information exploration process.Even worse,the challenges are exacerbated due to the intricate interdependency between these factors,and make it difficult to fully exploit the potentially important correlation among various semantic knowledges.This article proposes a file access correlation miming and evaluation reference（FARMER） model,where file is treated as a multivariate vector space,and each item within the vector corresponds a separate factor of the given file.The selection of factor depends on the application,examples of factors are file path,creator and executing program.If one particular factor occurs in both files,its value is non-zero.It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors.Benefit from this model,FARMER represents files as structured vectors of identifiers,and basic vector operations can be leveraged to quantify file correlation between two file vectors.FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the ＂bad knowledge＂ can be filtered out.To demonstrate the ability of new FARMER model,FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations.In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented.Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%-40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.展开更多
Even though the precipitation is abundant in the Karst region of Guizhou Province, remote villages in this area frequently suffer severe droughts. This paper studied the causes of droughts in this region through field...Even though the precipitation is abundant in the Karst region of Guizhou Province, remote villages in this area frequently suffer severe droughts. This paper studied the causes of droughts in this region through field investigation and references collection. Based on the cause analysis, some suggestions were provided for hazard prevention and control from an engineering perspective. Besides occasional extreme weathers, the drought in this area is primarily caused by its unique geological structures of Karst plateau and underdeveloped agricultural techniques. Meanwhile, the vicious cycle between drought and poverty, which causes the deficiency of water conservancy facilities and hazard prevention awareness, is an important reason for the frequent occurrence of agricultural and socioeconomic drought. Considering the social and economic conditions of remote villages, the long-term control of drought can only be realized if current measures are capable of bring immediate effects and benefits. Therefore, the construction of well-planned and designed water conservancy system based on each village's natural and social conditions are the priority for current hazard prevention. Generally, the exploitation of subterranean river should be considered as the first choice to stabilize the water supply for remote villages. Meanwhile, the construction and improvement of micro water conservancy facilities, such as small water tank, small pond and so on, can effectively support the water providence during droughts as well.展开更多
文摘This article deals with the issue of water system management and emergency management of water supply systems based on experience with the operation of water systems in EU （European Union） Member States. The options available for prevention/elimination of the hazard of limited drinking water supply to the public are described. Current climate and, in some countries, also the existing social conditions pose barriers to a smooth water supply to the public. Various hazards endangering the quality and amounts of water produced emerge. Since the risk of water supply outages due to natural or anthropogenic factors cannot be completely eliminated （for instance, hacker attacks pose a new threat to the water companies＇ control systems）, in other words, emergency situations where smooth water supply is disturbed cannot be ruled out, efforts must be made to at least minimise adverse impacts of such events on the users. Organisational and technical conditions minimising such hazards must be set up. A water production and distribution organization and management system must be introduced, which will be able to prevent and address such hazards and emergency situations. How to tackle this complex task in the real water system management conditions and to assure some minimal amount of water at least for strategic consumers is discussed in this article. The results of a water system operation risk analysis are presented, feasible methods to minimize such risks are described, and options to prevent and address such risks are proposed. A water company organisation and management system taking into account the possibility of development of emergency situations is set forth. Focus is on the use of a telemetric system as a system means that facilitates the prevention and possible addressing of any emergencies occurring during the operation of a water supply system.
文摘With the continuous progress and development of communication technology, the communication industry is constantly updated, and the speed of communication technology and equipment is accelerating. Subsequently, the construction management of communication engineering also needs to be more standardized and informationized, so as to improve the progress, quality, cost, scope, compliance, safety, communication risk and other aspects of communication engineering construction, reducing the labor cost and improving the economic benefits of communication enterprises.
文摘Objective: In order to further explore and study the overall effect of implementing the management measures of child health care system on children's early growth and development. Methods: From October 2021 to April 2022, 98 children with early growth and development were studied in our hospital. Forty-nine children with early growth and development who implemented general health management were taken as the reference group, and 49 children with early growth and development who implemented child health care were taken as the research group. By comparing the nutritional disease related data, nursing satisfaction, growth and development related data and development quotient related data;Results: The early growth and development related data, nursing satisfaction and development quotient related data of 49 children in the research group who implemented the child health care measures were higher than those of 49 children in the reference group who implemented the common health management measures, while the nutritional disease related data were lower than those of 49 children in the reference group who implemented the common health management measures. Conclusion: The implementation of child health care can significantly improve the data related to children's growth and development, the actual satisfaction of care and the data related to development quotient, and reduce the data related to nutritional diseases, which is worthy of large-scale clinical use.
文摘In order to realize the required scalable and adaptive system management, an interactive intelligent agency framework, iSMAcy （intelligent System Management Agency） , is proposed as an integrated solution to realize distributed autonomoas system management. Firstly, it is a multiagent platform that supports inter-agent communication and cooperation. Secondly, the functional agents are based on intentional agent architecture that achieves balance between goal-directed behavior and situated reactive action. An example of applying the iSMAcy system to a network management environment has been described to illustrate and validate the scalable and adaptive management capability of the intelligent agency framework.
文摘Objective: to explore and analyze the effect of traceability system management applied to the management of equipment in disinfection supply center. Methods: 200 devices were selected before and after the implementation of the retrospective system management. The control group was selected before the implementation, and the experimental group was selected after the implementation. Results: the quality management score of medical devices was significantly higher after the implementation of traceability system management than before. The satisfaction score was significantly higher after the implementation of traceability system management than before, P < 0.05. Conclusion: traceability system management has a significant effect in the management of disinfection supply center equipment, with high satisfaction of medical staff and good management effect, which is worthy of clinical promotion and application.
文摘According to the analysis of the problem of contract management, financial settlement and placement of coal trucks in coal business, a study is made on the coal management system. This system combines B/S and C/S together, and it also uses three-tire application of ASP.NET which sets up a business subsystem based on functional module management in vehicle. Additionally, MFC solves the problems in weighing management systems. This system goes with unit testing, integration testing, and system testing, and the whole process realizes an effective monitoring from coal trucks applying for delivery, checking in, and weighing to checking out. Besides, it also secures precise and accurate weighing data, and deals with the new coming coal contract in a faster way. The real project indicates this system wins a very good reputation and it is worthy of spreading in a broader context.
文摘A physical isolation system based on PCI (peripheral component interconnect),embedded with intelligence card technology, strong identity authentication technology and securityaudit, etc., is introduced. The system can physically isolate the internaland external networks. Thehardware of the system, including PCI interface control circuits, network interface circuits andlogic control circuits, is designed to automatically adapt its operation speed and mode to thenetwork and securely isolate the internal and external networks; the software of the system,including the security strategy management module, the security audit module, the database recordexchanging module, the file exchanging module and the mail exchanging module, is designed toefficiently exchange and manage the data transference between the internal and external networks.Also the driver of the system is implemented with Windows driver development kits (DDK) based onNetwork Driver Interface Specification (NDIS). The prototype ofthe system developed has beenemployed in the Police Fire Protection Bureau of Hubei Province, which performs consistently andefficiently. The technological cruxes discussed have practical values for related subjects.
基金supported by the Fundamental Research Funds for the Central Universities(2022SKNY01,2022YJSNY04).
文摘Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Management and Climate Change”Special Collection Issue in the journal of Energy Engineering provide insights into the field of energy systems management and climate change.From an extended perspective,this study discusses the key issues,research methods and models for energy system management and climate change research.Comprehensive and accurate prediction of energy supply and demand,the evaluation on the energy system resilience to climate change and the coupling methodology application of both nature and social science field maybe the frontier topics around achieving sustainable development goals of energy systems.
文摘The use of lithium-ion batteries(LIBs)-operated underground mining machinery has gained tremendous momentum as a result of their numerous advantages.This includes their high energy density,long cycle life,high voltage delivery,low heat release,stability,negligible memory efects,and low carbon footprint.Battery operated vehicles are also preferred in underground mines for their fexibility.They do not emit harmful pollutants during nominal operations,making the work environment safer for miners.However,thermal runaway(TR)incidents can occur which presents risks to miners and underground infrastructure.Therefore,it is crucial to understand battery operations and their failure mechanisms.This article outlines the advantages of LIBs,the necessary precautions for their safe operations underground,the conditions and impact of TR events,battery management systems,handling LIB fre emergencies,and the research opportunities to promote safer and widespread use.
文摘采用文献回顾法对Web of Science、IEEE Xplore、JSTOR数据库进行迭代检索。首先,以区块链和各国对医疗保健系统的概念解释为依据,确定“区块链+医疗保健系统”概念;其次,分别从理论与实践创新角度,分析国外的区块链与医疗保健系统结合效果;最后,通过挖掘依托区块链技术运行医疗保健系统的优势与挑战,提出我国区块链技术支持下的医疗保健系统发展启示。结果表明:使用区块链技术能提高医疗保健系统的数据共享与存储能力,保证信息真实性和有效性,但区块链的应用也将带来系统标准化、安全隐私、成本效益、评价指标设计以及文化抵制等问题。
基金supported by the National Basic Research Program(973 Program) of China(No.2015CB150402)the National Maize Production System in China(No.CARS-02-24)+1 种基金the Special Fund for Agroscientific Research in the Public Interest of China (No.201103003)the Innovative Group Grant of the NSFC,China(No.31421092)
文摘Achieving both high yield and high nitrogen use efficiency （NUE） simultaneously has become a major challenge with increased global demand for food, depletion of natural resources, and deterioration of environment. As the greatest consumers of N fertilizer in the world, Chinese farmers have overused N, and there has been poor synchrony between crop N demand and N supply because of limited understanding of the N uptake-yield relationship. To address this problem, this study evaluated the total and dynamic N requirement for different yield ranges of two major crops （maize and wheat）, and suggested improvements to N management strategies. Whole-plant N aboveground uptake requirement per grain yield （Nreq） initially deceased with grain yield improvement and then stagnated, and yet most farmers still believed that more fertilizer and higher grain yield were synonymous. When maize yield increased from 〈 7.5 to 〉 12.0 Mg ha-I, Nreq decreased from 19.8 to 17.0 kg Mg-1 grain. For wheat, it decreased from 27.1 kg Mg-1 grain for grain yield 〈 4.5 Mg ha-1 to 22.7 kg Mg-1 grain for yield 〉 9.0 Mg ha-1. Meanwhile, the percentage of dry matter and N accumulation in the middle-late growing season increased significantly with grain yield, which indicated that N fertilization should be concentrated in the middle-late stage to match crop demand while farmers often applied the majority of N fertilizer either before sowing or during early growth stages. We accordingly developed an integrated soil-crop system management strategy that simultaneously increases both grain yield and NUE.
基金Project supported by the National Basic Research Program of China (Grant Nos. 2004CB318201,2011CB302300)the US National Science Foundation (Grant No. CCF-0621526)+1 种基金the National Natural Science Foundation of China (Grant No. 60703046)HUST-SRF (Grant No.2007Q021B)
文摘File semantic has proven effective in optimizing large scale distributed file system.As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems,file system can provide useful and insightful information about semantic.Hence,file semantic mining has become an increasingly important practice in both engineering and research community.Unfortunately,it is a challenge to exploit file semantic knowledge because a variety of factors coulda ffect this information exploration process.Even worse,the challenges are exacerbated due to the intricate interdependency between these factors,and make it difficult to fully exploit the potentially important correlation among various semantic knowledges.This article proposes a file access correlation miming and evaluation reference（FARMER） model,where file is treated as a multivariate vector space,and each item within the vector corresponds a separate factor of the given file.The selection of factor depends on the application,examples of factors are file path,creator and executing program.If one particular factor occurs in both files,its value is non-zero.It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors.Benefit from this model,FARMER represents files as structured vectors of identifiers,and basic vector operations can be leveraged to quantify file correlation between two file vectors.FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the ＂bad knowledge＂ can be filtered out.To demonstrate the ability of new FARMER model,FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations.In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented.Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%-40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.
基金supported by the National Natural Science Foundation of China (Grant No.41572285)
文摘Even though the precipitation is abundant in the Karst region of Guizhou Province, remote villages in this area frequently suffer severe droughts. This paper studied the causes of droughts in this region through field investigation and references collection. Based on the cause analysis, some suggestions were provided for hazard prevention and control from an engineering perspective. Besides occasional extreme weathers, the drought in this area is primarily caused by its unique geological structures of Karst plateau and underdeveloped agricultural techniques. Meanwhile, the vicious cycle between drought and poverty, which causes the deficiency of water conservancy facilities and hazard prevention awareness, is an important reason for the frequent occurrence of agricultural and socioeconomic drought. Considering the social and economic conditions of remote villages, the long-term control of drought can only be realized if current measures are capable of bring immediate effects and benefits. Therefore, the construction of well-planned and designed water conservancy system based on each village's natural and social conditions are the priority for current hazard prevention. Generally, the exploitation of subterranean river should be considered as the first choice to stabilize the water supply for remote villages. Meanwhile, the construction and improvement of micro water conservancy facilities, such as small water tank, small pond and so on, can effectively support the water providence during droughts as well.
