Method of the Safety Early Warning on Hazard Installations

2010 ◽  
Vol 34-35 ◽  
pp. 806-810
Author(s):  
Jing Zhang
Keyword(s):  
Quantitative Analysis ◽  
Early Warning ◽  
Prevention And Control ◽  
Processing System ◽  
Actual Situation ◽  
Information Processing Model ◽  
Effective Combination ◽  
Simulation Results ◽  
And Control ◽  
And Diffusion

The early warning can improve the monitoring and management of the hazard installations, realize the prevention and control in advance. Many early warning methods do not have the forecast and simulation of the hazard consequences and early warning information is not comprehensive. The hazard installations warning process and hazard assessment technology are analyzed and studied, and qualitative analysis and quantitative analysis are carried out. With the effective combination of hazard consequences and early warning technology, the processing system of hazard installation early warning process information is presented, the hazard installation early warning information processing model is designed, the hazard installation early warning is improved, and the accuracy and efficiency of early warning is improved. With examples, the hazard consequences of leak and diffusion are simulated. Experiments prove that the early warning simulation structure and early warning method are effective, and that the simulation results are close to the actual situation with better application value.

Security Early Warning Assessment Program of Hazardous Sources Based on Early Warning Information Processing Model

2013 ◽  
Vol 756-759 ◽  
pp. 804-809
Author(s):  
Ling Jia
Keyword(s):  
Information Processing ◽  
Hazard Assessment ◽  
Early Warning ◽  
Prevention And Control ◽  
Processing System ◽  
System Structure ◽  
Information Processing Model ◽  
Assessment Program ◽  
Assessment Techniques ◽  
And Control

The early warning can constantly improve the monitoring and management of the hazardous sources to realize advance prevention and control. Many early warning methods do not predict and imitate the hazard sequel and the early warning information in incomplete. This essay analyzes and studies the early warning process of the hazardous sources, hazard assessment techniques and analyzes the hazardous sources quantitatively and qualitatively. This essay combines effectively the imitation of the hazard sequel and the early warning technology, proposes hazardous sources security early warning procedure information processing system structure and designs models for processing early warning information of the hazardous sources, improving the early warning of the hazardous sources and increasing the accuracy and efficiency of the prior warning. Combining with cases, it performs imitation of the hazard sequel of leakage accident. Practices have shown that the proposed imitated early warning structure and methods are efficient. The imitation result is nearly matched with the fact. The early warning gets satisfied effect having certain practical value.

scholarly journals Method for Mid-Long-Term Prediction of Landslides Movements Based on Optimized Apriori Algorithm

2019 ◽  
Vol 9 (18) ◽  
pp. 3819 ◽  
Author(s):  
Wenhao Guo ◽  
Xiaoqing Zuo ◽  
Jianwei Yu ◽  
Baoding Zhou
Keyword(s):  
Prediction Model ◽  
Early Warning ◽  
Computational Efficiency ◽  
Prevention And Control ◽  
Apriori Algorithm ◽  
Mapreduce Framework ◽  
Frequent Item ◽  
And Control ◽  
Frequent Item Sets

In the study of the mid-long-term early warning of landslide, the computational efficiency of the prediction model is critical to the timeliness of landslide prevention and control. Accordingly, enhancing the computational efficiency of the prediction model is of practical implication to the mid-long-term prevention and control of landslides. When the Apriori algorithm is adopted to analyze landslide data based on the MapReduce framework, numerous frequent item-sets will be generated, adversely affecting the computational efficiency. To enhance the computational efficiency of the prediction model, the IAprioriMR algorithm is proposed in this paper to enhance the efficiency of the Apriori algorithm based on the MapReduce framework by simplifying operations of the frequent item-sets. The computational efficiencies of the IAprioriMR algorithm and the original AprioriMR algorithm were compared and analyzed in the case of different data quantities and nodes, and then the efficiency of IAprioriMR algorithm was verified to be enhanced to some extent in processing large-scale data. To verify the feasibility of the proposed algorithm, the algorithm was employed in the mid-long-term early warning study of landslides in the Three Parallel Rivers. Under the same conditions, IAprioriMR algorithm of the same rule exhibited higher confidence than FP-Growth algorithm, which implied that IAprioriMR can achieve more accurate landslide prediction. This method is capable of technically supporting the prevention and control of landslides.

scholarly journals Multi-chain Fudan-CCDC model for COVID-19 – a revisit to Singapore’s case

2020 ◽  
Author(s):  
Hanshuang Pan ◽  
Nian Shao ◽  
Yue Yan ◽  
Xinyue Luo ◽  
Shufen Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Penalty Function ◽  
Prevention And Control ◽  
World Wide ◽  
Data Fitting ◽  
Chain Model ◽  
Single Chain ◽  
Simulation Results ◽  
Different Characteristics ◽  
And Control

AbstractBackgroundCOVID-19 has been impacting on the whole world critically and constantly since late December 2019. Rapidly increasing infections has raised intense world-wide attention. How to model the evolution of COVID-19 effectively and efficiently is of great significance for prevention and control.MethodsWe propose the multi-chain Fudan-CCDC model based on the original single-chain model in [8] to describe the evolution of COVID-19 in Singapore. Multi-chains can be considered as the superposition of several single chains with different characteristics. We identify parameters of models by minimizing the penalty function.ResultsThe numerical simulation results exhibit the multichain model performs well on data fitting. Though unsteady the increments are, they could still fall within the range of ±25% fluctuation from simulation results. It is predicted by multi-chain models that Singapore are experiencing a nonnegligible risk of explosive outbreak, thus stronger measures are urgently needed to contain the epidemic.ConclusionThe multi-chain Fudan-CCDC model provides an effective way to early detect the appearance of imported infectors and super spreaders and forecast a second outbreak. It can also explain the data in those countries where the single-chain model shows deviation from the data.

scholarly journals Multi-chain Fudan-CCDC model for COVID-19 in Iran

2020 ◽  
Author(s):  
Hanshuang Pan ◽  
Nian Shao ◽  
Yue Yan ◽  
Xinyue Luo ◽  
Ali Ahmadi ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Prevention And Control ◽  
Data Fitting ◽  
Chain Model ◽  
Single Chain ◽  
Epidemic Curve ◽  
The World ◽  
Simulation Results ◽  
Fitting In ◽  
And Control

AbstractBackgroundCOVID-19 has been deeply affecting people’s lives all over the world. It is significant for prevention and control to model the evolution effectively and efficiently.MethodsWe first propose the multi-chain Fudan-CCDC model which is based on the original Fudan-CCDC model to describe the revival of COVID-19 in some countries. Multi-chains are considered as the superposition of distinctive single chains. Parameter identification is carried out by minimizing the penalty function.ResultsFrom results of numerical simulations, the multi-chain model performs well on data fitting and reasonably interprets the revival phenomena. The band of ±25% fluctuation of simulation results could contain most seemly unsteady increments.ConclusionThe multi-chain model has better performance on data fitting in revival situations compared with the single-chain model. It is predicted by the three-chain model with data by Apr 21 that the epidemic curve of Iran would level off on round May 10, and the final cumulative confirmed cases would be around 88820. The upper bound of the 95% confidence interval would be around 96000.

Progress, Problems, and Improving Methods of Non-Engineering Countermeasures Against Urban Meteorological Disasters in China

2017 ◽  
Vol 05 (01) ◽  
pp. 1750004 ◽  
Author(s):  
Yuan XIN ◽  
Hairu JIANG ◽  
Feng KONG ◽  
Lili LV ◽  
Yinghui PENG
Keyword(s):  
Social Participation ◽  
Early Warning ◽  
Prevention And Control ◽  
Social Impact ◽  
Disaster Prevention ◽  
Rapid Urbanization ◽  
High Diffusion ◽  
And Control ◽  
Meteorological Disasters

During China’s rapid urbanization, cities are threatened by ever more severe meteorological disasters. Urban meteorological disasters are characterized by massive destruction, high diffusion, and extensive social impact, which further complicate prevention and control. Therefore, non-engineering countermeasures are given a more prominent role in the process. China has primarily established a system of non-engineering countermeasures against urban meteorological disasters. However, this system does have its problems and flaws. The authors propose that disaster prevention should be technology-based and carried out in a scientific manner. A well-rounded disaster prevention institution should be established, and social participation must be raised. Urban meteorological monitoring, forecasting, and early warning abilities should be enhanced, prevention and control plans improved, relative legislation and administration completed, and social participation promoted so as to strengthen China’s non-engineering response to meteorological disasters.

scholarly journals Exploration on the Successful Experience of Disaster Avoidance from Mountain Torrents Disaster in Xiaodianwu, Kecheng District

2021 ◽  
Author(s):  
Lihong Zhang ◽  
Hanze Li ◽  
Zhengjie Zhou ◽  
Hongri Zheng ◽  
Lu Zhang ◽  
...  
Keyword(s):  
Natural Disasters ◽  
Early Warning ◽  
Prevention And Control ◽  
Economic Losses ◽  
Provincial City ◽  
Prevention System ◽  
The World ◽  
Close Cooperation ◽  
And Control ◽  
The Village

Mountain torrents disasters have become one of the main types of natural disasters in the world and causes a large number of casualties and economic losses. The construction of mountain torrents disaster mass monitoring and prevention system is an important part of mountain torrents disaster prevention and control construction in China. This paper introduces the main contents of the mass monitoring and prevention system, investigates the causes of mountain torrents disasters in Xiaodianwu, Kecheng District , analyzes the function of the forecasting and early warning measures, explores the successful experience of disaster avoidance, and provides reference for the improvement of mountain torrents disaster defense capabilities. In the process of defensing the mountain torrents disasters in Xiaodianwu, the village-level inspectors carried out on-site inspections in the rain and immediately organized door-to-door warnings and personnel transfers after discovering the danger, gaining valuable time for the successful avoidance of danger. The effective connection and close cooperation of the work chain at the provincial, city, county, and village levels were the key to the successful avoidance of this mountain torrent disaster.

scholarly journals Inovações e tecnologias para a prevenção da úlcera por pressão em calcâneo

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Miriam Viviane Baron ◽  
Ricardo Moraes Pavani ◽  
Luiz Alberto Forgiarini Junior
Keyword(s):  
Diffusion Of Innovation ◽  
Pressure Ulcer ◽  
Prevention And Control ◽  
On Line ◽  
And Control ◽  
And Diffusion

Justificativa e objetivos: Diversos dispositivos de prevenção para úlcera por pressão têm surgido no mercado atual, no entanto, muitos destes não atendem as diretrizes de prevenção e podem contribuir para o aumento do risco de desenvolvimento da úlcera. O objetivo deste estudo foi realizar uma revisão da literatura sobre as principais inovações e tecnologias desenvolvidas nos últimos dez anos para a prevenção da úlcera por pressão, abrangendo a região do calcâneo. Conteúdo: A pesquisa da literatura caracterizou-se por busca de artigos no meio on-line publicados no período de janeiro de 2006 a fevereiro de 2016, e disponíveis nos idiomas português, inglês e espanhol. A procura dos artigos foi realizada nas bases de dados do SciELO, IBECS, MEDLINE, LILACS e PubMed, por meio dos seguintes descritores combinados: pressure ulcer AND prevention and control OR pressure ulcer AND calcaneus OR pressure ulcer AND inventions OR pressure ulcer AND equipment and hospital supplies OR pressure ulcer AND diffusion of innovation. Foram identificados 2.145 artigos, e, após a leitura dos títulos e resumos, 14 se adequavam aos critérios de inclusão e compuseram a leitura para esta revisão. Conclusão: Verificou-se que as inovações e tecnologias desenvolvidas nos últimos dez anos são úteis e podem ser incorporadas em protocolos de prevenção global da úlcera por pressão. Contudo, inovações e tecnologias específicas para a prevenção da úlcera por pressão na região do calcâneo são escassas. Sugere-se o desenvolvimento de dispositivo de prevenção da úlcera por pressão para a região do calcâneo, baseado em evidências científicas.

Sign in / Sign up

Export Citation Format

Share Document