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Path Selection in Disaster Response Management Based on Q-learning 被引量:3
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作者 Zhao-Pin Su Jian-Guo Jiang +1 位作者 Chang-Yong Liang2' 3 Guo-Fu Zhang Guo-Fu Zhang 《International Journal of Automation and computing》 EI 2011年第1期100-106,共7页
Suitable rescue path selection is very important to rescue lives and reduce the loss of disasters, and has been a key issue in the field of disaster response management. In this paper, we present a path selection algo... Suitable rescue path selection is very important to rescue lives and reduce the loss of disasters, and has been a key issue in the field of disaster response management. In this paper, we present a path selection algorithm based on Q-learning for disaster response applications. We assume that a rescue team is an agent, which is operating in a dynamic and dangerous environment and needs to find a safe and short path in the least time. We first propose a path selection model for disaster response management, and deduce that path selection based on our model is a Markov decision process. Then, we introduce Q-learning and design strategies for action selection and to avoid cyclic path. Finally, experimental results show that our algorithm can find a safe and short path in the dynamic and dangerous environment, which can provide a specific and significant reference for practical management in disaster response applications. 展开更多
关键词 Disaster response management path selection AGENT SELF-ORGANIZING Markov decision process Q-learning.
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Price-Based Residential Demand Response Management in Smart Grids:A Reinforcement Learning-Based Approach 被引量:2
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作者 Yanni Wan Jiahu Qin +2 位作者 Xinghuo Yu Tao Yang Yu Kang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2022年第1期123-134,共12页
This paper studies price-based residential demand response management(PB-RDRM)in smart grids,in which non-dispatchable and dispatchable loads(including general loads and plug-in electric vehicles(PEVs))are both involv... This paper studies price-based residential demand response management(PB-RDRM)in smart grids,in which non-dispatchable and dispatchable loads(including general loads and plug-in electric vehicles(PEVs))are both involved.The PB-RDRM is composed of a bi-level optimization problem,in which the upper-level dynamic retail pricing problem aims to maximize the profit of a utility company(UC)by selecting optimal retail prices(RPs),while the lower-level demand response(DR)problem expects to minimize the comprehensive cost of loads by coordinating their energy consumption behavior.The challenges here are mainly two-fold:1)the uncertainty of energy consumption and RPs;2)the flexible PEVs’temporally coupled constraints,which make it impossible to directly develop a model-based optimization algorithm to solve the PB-RDRM.To address these challenges,we first model the dynamic retail pricing problem as a Markovian decision process(MDP),and then employ a model-free reinforcement learning(RL)algorithm to learn the optimal dynamic RPs of UC according to the loads’responses.Our proposed RL-based DR algorithm is benchmarked against two model-based optimization approaches(i.e.,distributed dual decomposition-based(DDB)method and distributed primal-dual interior(PDI)-based method),which require exact load and electricity price models.The comparison results show that,compared with the benchmark solutions,our proposed algorithm can not only adaptively decide the RPs through on-line learning processes,but also achieve larger social welfare within an unknown electricity market environment. 展开更多
关键词 Demand response management(DRM) Markovian decision process(MDP) Monte Carlo simulation reinforcement learning(RL) smart grid
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Hemodynamic monitoring and management of patients undergoing high-risk surgery:a survey among Chinese anesthesiologists 被引量:4
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作者 Guo Chen Yunxia Zuo +2 位作者 Lei Yang Elena Chung Maxime Cannesson 《The Journal of Biomedical Research》 CAS 2014年第5期376-382,共7页
Hemodynamic monitoring and optimization improve postoperative outcome during high-risk surgery.However,hemodynamic management practices among Chinese anesthesiologists are largely unknown.This study sought to evaluate... Hemodynamic monitoring and optimization improve postoperative outcome during high-risk surgery.However,hemodynamic management practices among Chinese anesthesiologists are largely unknown.This study sought to evaluate the current intraoperative hemodynamic management practices for high-risk surgery patients in China.From September 2010 to November 2011,we surveyed anesthesiologists working in the operating rooms of 265 hospitals representing 28 Chinese provinces.All questionnaires were distributed to department chairs of anesthesiology or practicing anesthesiologists.Once completed,the 29-item questionnaires were collected and analyzed.Two hundred and 10 questionnaires from 265 hospitals in China were collected.We found that 91.4%of anesthesiologists monitored invasive arterial pressure,82.9%monitored central venous pressure(CVP),13.3%monitored cardiac output(CO),10.5%monitored mixed venous saturation,and less than 2%monitored pulse pressure variation(PPV) or systolic pressure variation(SPV) during high-risk surgery.The majority(88%) of anesthesiologists relied on clinical experience as an indicator for volume expansion and more than 80%relied on blood pressure,CVP and urine output.Anesthesiologists in China do not own enough attention on hemodynamic parameters such as PPV,SPV and CO during fluid management in high-risk surgical patients.The lack of CO monitoring may be attributed largely to the limited access to technologies,the cost of the devices and the lack of education on how to use them.There is a need for improving access to these technologies as well as an opportunity to create guidelines and education for hemodynamic optimization in China. 展开更多
关键词 high risk surgery patients hemodynamic management China fluid responsiveness
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Standardized Management Outlined in Future Response to Emergency Plan
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《China Standardization》 2017年第5期7-7,共1页
The General Office of the State Council released the 13th Five-Year Plan for China's National Emergency System Construction(Plan for short).According to the Plan,China's emergency management laws and regulatio... The General Office of the State Council released the 13th Five-Year Plan for China's National Emergency System Construction(Plan for short).According to the Plan,China's emergency management laws and regulations and standards system need to be further improved and the basic capabilities of emergency management should continue to be enhanced. 展开更多
关键词 Standardized management Outlined in Future Response to Emergency Plan
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Effects of cooperative nursing and patient education on postoperative infection and self-efficacy in gastrointestinal tumors 被引量:5
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作者 Li Qiao Shu-Qian Zeng Ning Zhang 《World Journal of Clinical Cases》 SCIE 2021年第7期1610-1618,共9页
BACKGROUND Gastrointestinal tumors have a high incidence rate.The application value of the cooperative nursing care system of medical care has received widespread attention in recent years.However,there are few studie... BACKGROUND Gastrointestinal tumors have a high incidence rate.The application value of the cooperative nursing care system of medical care has received widespread attention in recent years.However,there are few studies on the value of the joint application of collaborative nursing care and self-efficacy education.AIM To explore the effect of cooperative nursing care management/self-efficacy education on postoperative infection and self-efficacy in gastrointestinal tumor surgery patients.METHODS A total of 102 patients with gastrointestinal tumors treated in our hospital from October 2018 to February 2020 were selected and divided into a conventional group(n=51)and a combined group(n=51)according to the nursing plan.The routine group adopted routine nursing,and the joint group adopted the medical care cooperative responsibility system nursing management combined with selfefficacy education.The self-efficacy scores,coping style scores,self-experience burden scores,and postoperative complication rates of the two groups before and after intervention were counted.RESULTS After intervention,the daily life behavior management,cognitive symptom management,and disease management scores of the two groups were higher than those before the intervention,and those of the combined group were higher than those of the conventional group(all P=0.000).After the intervention,the positive response scores of the two groups were higher than those before the intervention,the negative response scores were lower than those before the intervention,and the combined group was better than the conventional group(all P=0.000).After the intervention,the two groups’emotional,economic,and physical factor scores were lower than those before the intervention,and the combined group was lower than the conventional group(all P=0.000).The incidence of infection in the combined group(1.96%)was lower than that in the conventional group(15.69%)(P=0.036).CONCLUSION Cooperative nursing care management and self-efficacy education improved the physical and mental states of gastrointestinal cancer surgery patients,change the response to disease,and reduce the risk of postoperative infection. 展开更多
关键词 Medical care cooperative responsibility system nursing management Selfefficacy education Gastrointestinal neoplasms Postoperative infection SELF-EFFICACY NURSING
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Optimal nitrogen fertilization of boreal conifer forest 被引量:1
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作者 Timo Pukkala 《Forest Ecosystems》 SCIE CSCD 2017年第2期123-132,共10页
Background: Forest fertilization offers a means to increase the production of renewable resources.Nitrogen is the most common fertilizer in boreal upland forests.There is plenty of research on the effect of nitrogen ... Background: Forest fertilization offers a means to increase the production of renewable resources.Nitrogen is the most common fertilizer in boreal upland forests.There is plenty of research on the effect of nitrogen fertilization on volume growth, but less research on the optimal timing of fertilization and optimal management of fertilized stands.Methods: This study used simulation and optimization to analyze the profitability of fertilization, optimal management of fertilized stands and the effects of fertilization on cash flows and timber yields.The management of 100 stands representing the most common growing sites of Scots pine and Norway spruce was optimized.Results: Fertilization improved profitability in most of the analyzed stands.Profitability improved most in spruce stands growing on mesic site.Improving stem quality increased the economic benefit of fertilization.The timber yields of medium-aged conifer stands can be increased by almost 1 m^3·ha^(-1)·a^(-1)(15%) in sub-xeric pine and mesic spruce sites and about 0.5 m^3·ha^(-1)·a^(-1)(5%) in mesic pine and herb-rich spruce sites when the recommended nitrogen dose(150kg·ha^(-1)) is applied once in 30 years.Conclusions: Nitrogen fertilization of boreal conifer forest should be used mainly in spruce-dominated stands growing on medium sites.The gains are the highest in stands where the mean tree diameter is 16–20 cm and stand basal area is 14–20 m^2·ha^(-1). 展开更多
关键词 Forest fertilization Optimal management Response model
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Research on Technology Early-Warning System Based on Dynamic Information Monitoring
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作者 汪雪锋 朱东华 +1 位作者 刘嵩 刘佳 《Journal of Beijing Institute of Technology》 EI CAS 2009年第1期121-126,共6页
Relying on the advanced information technologies, such as information monitoring, data mining, natural language processing etc., the dynamic technology early-warning system is constructed. The system consists of techn... Relying on the advanced information technologies, such as information monitoring, data mining, natural language processing etc., the dynamic technology early-warning system is constructed. The system consists of technology information automatic retrieval, technology information monitoring, technology threat evaluation, and crisis response and management subsystem, which implements uninterrupted dynamic monitoring, trace and crisis early-warning to the specific technology. Empirical study testifies that the system improves the accuracy, timeliness and reliability of technology early-warning. 展开更多
关键词 technology early-warning system information monitoring dynamic retrieval technology threatevaluation crisis response and management
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Cancer Rehabilitation,A New Discipline Based upon Multidisciplinary Collaboration
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作者 Shan Su 《Journal of Advances in Medicine Science》 2022年第2期14-21,共8页
Cancer Rehabilitation is a new discipline,a combination of tumor medication,immunology,psychology,nutritional science and exercise physiology etc..The core of cancer rehabilitation is the therapy of natural immunology... Cancer Rehabilitation is a new discipline,a combination of tumor medication,immunology,psychology,nutritional science and exercise physiology etc..The core of cancer rehabilitation is the therapy of natural immunology,which aims at activating T-cells,and restoring the bone marrow function impaired during chemo-radiation therapy.Cancer rehabilitation seeks to achieve the gradual recovery of the immune system,which in turn hinders recurrence and metastasis.In addition,with the help of psychological consultation,nutritional and physical exercise guidance,cancer patients may have a better chance at managing the risk of recurrence and metastasis,extending life expectancy with an improved quality of life. 展开更多
关键词 Cancer rehabilitation Therapy of natural immunology Immune activation Immune reconstruction Immune response management Cancer rehabilitation psychology Cancer rehabilitation nutritional science Cancer rehabilitation exercise physiology
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Sharing the post-earthquake situation for emergency response management in transborder areas: The e-Atlas tool 被引量:1
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作者 Stefano Grimaz Petra Malisan Andrea Pividori 《Journal of Safety Science and Resilience》 CSCD 2022年第1期72-86,共15页
Usually,the response after a disastrous event requires decision-makers in emergency operative rooms to quickly outline and understand the current post-event situation,for planning and defining strategies for a context... Usually,the response after a disastrous event requires decision-makers in emergency operative rooms to quickly outline and understand the current post-event situation,for planning and defining strategies for a contextualized response.Moreover,in many cases,disastrous events affect cross-border territories and/or involve multiple orga-nizations in responding to the demand generated by the event.These cases require a harmonized and coordinated response by all the institutions/subjects involved in emergency management.To address this challenge,this pa-per proposes the e-Atlas(emergency atlas)tool for showing and sharing information that embraces a response management perspective to explicitly support decision-makers in managing the criticalities of a post-earthquake situation.The e-Atlas has been designed and tested to:i)acquire sensible information for allowing decision-makers to understand in almost real-time the post-earthquake situational picture,and ii)share the representation of the situational picture among different users,allowing each of them to use it according to its specific require-ments.Applications of the tool are illustrated,to show how it is used in a transborder context in the North-East area of Italy. 展开更多
关键词 Emergency response management GIS Seismic emergency Decision-making support e-Atlas
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Advancing the Field of Disaster Response Management:Toward a Design Science Approach
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作者 Tove Frykmer Henrik Tehler +1 位作者 Christian Uhr Misse Wester 《International Journal of Disaster Risk Science》 SCIE CSCD 2021年第2期220-231,共12页
Multiorganizational response to emergencies and disasters requires collaboration.How to improve the collective response is therefore an essential question,but not easy to answer.In disaster research,normative research... Multiorganizational response to emergencies and disasters requires collaboration.How to improve the collective response is therefore an essential question,but not easy to answer.In disaster research,normative research with a focus on providing evidence for how to improve professional practice has traditionally received less attention than explanatory ones.The aim of this article,using insights from design science where normative research is more common,is to suggest a complementary approach to response management research.Our approach,which combines experimental and explanatory research,is applied to a study of goal alignment.Goal alignment among response actors is often recommended despite literature’s contradictory evidence regarding its effect.We conducted an experiment with 111 participants,who,in groups of three,played a computer game under one of two conditions(goal alignment or not).Our results show that aligning goals did not improve the outcome in the game.Although this may serve as a counterargument to implementing goal alignment interventions,there are concerns with such conclusions.These reservations include,but are not limited to,the lack of validated models to use in experiments.Nevertheless,our suggested research approach and the goal alignment experiment highlight the importance of testing interventions and their effectiveness before implementation. 展开更多
关键词 Design science Disaster response management Experimental research Goal alignment
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System Analysis & Incentive Model Design for Enterprise Contract Management Responsibility System(ECMRS)
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作者 LEI Ming(Department of Economy Mangaement,Beijing University,Beijing 100871)FENG Shan(Institute of Systems Engineering,Huazhong University of Science and Technology,Wuhan Hubei) 《Systems Science and Systems Engineering》 CSCD 1994年第1期16-25,共10页
With introducting two testing indices of ECMRS,behavior modal of the contract enterprise and the state in ECMRS are in our paper,then two connive models of ECMRS are made by introducing an audit technique as a means o... With introducting two testing indices of ECMRS,behavior modal of the contract enterprise and the state in ECMRS are in our paper,then two connive models of ECMRS are made by introducing an audit technique as a means of acquiring information Moreover,a general rule which determines optimal strategy with perfect informtion is also given. 展开更多
关键词 enterprise contract management responsibility system incentive strategy AUDIT
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Development and application of a water pollution emergency response system for the Three Gorges Reservoir in the Yangtze River, China 被引量:16
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作者 Qiang He Shujuan Peng Jun Zhai Haiwen Xiao 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2011年第4期595-600,共6页
There are many watercraft and production accidents in the Three Gorges Reservoir Area (TGRA) of the Yangtze River in China every year. Accidents threaten the water quality of the 1085 km 2 surface area of the TGRA a... There are many watercraft and production accidents in the Three Gorges Reservoir Area (TGRA) of the Yangtze River in China every year. Accidents threaten the water quality of the 1085 km 2 surface area of the TGRA and millions of local people if oil and chemical leakage were to occur. A water pollution management system for emergency response (WPMS ER) was therefore designed for the management of pollution in this area. An integrated geographic information system (GIS)-based water pollution management information system for the TGRA, called WPMS ER TGRA, was developed in this study. ArcGIS engine was used as the system development platform, and Visual Basic as the programming language. The models for hydraulic and water quality simulation and the generation of body-fitted coordinates were developed and programmed as a dynamically linked library file using Visual Basic, and they can be launched by other computer programs. Subsequently, the GIS-based information system was applied to the emergency water pollution management of a shipwreck releasing 10 tons of phenol into the Yangtze River during two hours. The results showed that WPMS ER TGRA can assist with emergency water pollution management and simulate the transfer and diffusion of accidental pollutants in the river. Furthermore, it can quickly identify the affected area and how it will change over time within a few minutes of an accident occurring. 展开更多
关键词 water pollution emergency emergency response management information system the Three Gorges Reservoir
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