scholarly journals Risk dynamics modelling of reservoir dam break for safety control in the emergency response process

Author(s):  
Guangze Shen ◽  
Yi Lu ◽  
Shichen Zhang ◽  
Yan Xiang ◽  
Jinbao Sheng ◽  
...  

Abstract Dam break is an accident that may heavily threat downstream residents' life and property safety, especially in China. As revealed by accident investigation statistics, both flawed organizational behavior and inadequate downstream resident risk awareness affected the safety risk of reservoir dam. The multiple information transferring mode and dynamic processes perform with the characteristics of social-technical system. Based on the system dynamics approach, this study proposed a risk causation model aiming for factor interactions involving organizational, human, and technical system levels. The derived simulation model represented the historical risk evolution process of Gouhou reservoir in China and the rationality of the proposed model was verified. To further improve the efficiency of the organizational response and monitor real-time dam safety, a software tool called Dam Emergency Response Aids (DERA) was constructed to evaluate the potential safety benefits of risk control measures, and to overcome the defects of static emergency plans. By integrating relevant professional modules and data, the mobile application (APP) has been applied on the Jinniu Mountain reservoir dam in Nanjing of China and helped to maintain its excellent safety operation until now. It shows the risk dynamics model proposed can improve the abilities of dam operating management organization for more effective responses under emergency circumstances.

2016 ◽  
Vol 04 (04) ◽  
pp. 1650027
Author(s):  
Rong ZHU

Analysis of the meteorological conditions for atmospheric pollutant dispersion before and after the 2014 APEC meeting shows very significant effects of air pollution prevention and control measures on the meeting. It proves that the proper measures to control air pollution in the Beijing-Tianjin-Hebei Region are: establishing a regional emergency response mechanism to reduce emissions in the case of heavy air pollution, strengthening the local emergency response measures for emission reduction, and enhancing the early warning system for weather conditions conducive to heavy air pollution.


2018 ◽  
Vol 7 (3.9) ◽  
pp. 5
Author(s):  
Zaamuddin Zakaria ◽  
Syuhaida Ismail ◽  
Wan Nurul Mardiah Wan Mohd. Rani ◽  
Rohayah Che Amat ◽  
Mohammad Hussaini Wahab

Construction by nature is inherently dangerous, with a high degree of hazard and risk. Serious fire has occurred in building under construction, which will not delay their completion dates and loss of life, but also result in serious monetary losses. The objectives of this paper are to investigate the causes of fire hazard during the construction phase; assess the risk level arising from the fire hazard during the construction phase; and tpropose safety control measures of fire hazard during the construction phase. Primary data is obtained from the respondents of a mixed use development project in Kuala Lumpur via questionnaire surveys. The data is analysed via Statistical Package for the Social Science (SPSS) and Hazard Identification, Risk Assessment and Risk Control (HIRARC). The findings show that the most important causes of fire hazard of a mixed-use development project are related to workers site activities. Meanwhile, HIRARC identifies that fire hazard from hot works and use electrical tools are the most important risks. Lastly, safety control measures were proposed to control the identified fire hazard by improving the operating procedure of hot works and use of electrical tools as well as implementing good housekeeping practices and inspection at the workplace.  


2021 ◽  
pp. 084047042110424
Author(s):  
Marcin Bartosiak ◽  
Gianni Bonelli ◽  
Lorenzo Stefano Maffioli ◽  
Ugo Palaoro ◽  
Francesco Dentali ◽  
...  

The use of robotics is becoming widespread in healthcare. However, little is known about how robotics can affect the relationship with patients in epidemic emergency response or how it impacts clinicians in their organization and work. As a hospital responding to the consequences of the COVID-19 pandemic “ASST dei Sette Laghi” (A7L) in Varese, Italy, had to react quickly to protect its staff from infection while coping with high budgetary pressure as prices of Personal Protection Equipment (PPE) increased rapidly. In response, it introduced six semi-autonomous robots to mediate interactions between staff and patients. Thanks to the cooperation of multiple departments, A7L implemented the solution in less than 10 weeks. It reduced risks to staff and outlay for PPE. However, the characteristics of the robots affected their perception by healthcare staff. This case study reviews critical issues faced by A7L in introducing these devices and recommendations for the path forward.


2021 ◽  
Vol 7 (6) ◽  
pp. 5230-5245
Author(s):  
Qian Yuhao ◽  
Chen Junshi ◽  
Wang Chen ◽  
Liu Chen

In recent years, major public safety incidents occur frequently in smoke-free cities. Under the complex and severe situation, the emergency preparedness capacity of smoke-free cities in China needs to be improved. In this paper, 50 fire emergency plans in smoke-free City F are taken as samples, and the qualitative comparative analysis method of clear set (csqca) is applied to explore the improvement path of emergency preparedness ability. Three influence paths are obtained to improve the emergency preparedness ability, which are information resource integration mode, business collaboration pre control mode and system route mode. The results provide reference for improving the effectiveness of pre disaster prevention, enhance the emergency preparedness capacity of smoke-free cities and improving the effect of emergency management.


Science ◽  
2020 ◽  
Vol 368 (6491) ◽  
pp. 638-642 ◽  
Author(s):  
Huaiyu Tian ◽  
Yonghong Liu ◽  
Yidan Li ◽  
Chieh-Hsi Wu ◽  
Bin Chen ◽  
...  

Responding to an outbreak of a novel coronavirus [agent of coronavirus disease 2019 (COVID-19)] in December 2019, China banned travel to and from Wuhan city on 23 January 2020 and implemented a national emergency response. We investigated the spread and control of COVID-19 using a data set that included case reports, human movement, and public health interventions. The Wuhan shutdown was associated with the delayed arrival of COVID-19 in other cities by 2.91 days. Cities that implemented control measures preemptively reported fewer cases on average (13.0) in the first week of their outbreaks compared with cities that started control later (20.6). Suspending intracity public transport, closing entertainment venues, and banning public gatherings were associated with reductions in case incidence. The national emergency response appears to have delayed the growth and limited the size of the COVID-19 epidemic in China, averting hundreds of thousands of cases by 19 February (day 50).


2020 ◽  
Author(s):  
haiyang liu

<p>Natural disasters will bring a huge threat to the safety of human life and property. When disasters happen, leaders at all levels need to respond in time. Emergency plans can be regarded as the effective guidance of natural disaster emergency responses, and they include the textual descriptions of emergency response processes in terms of natural language. In this paper, we propose an approach to automatically extract emergency response process models from Chinese emergency plans, and can automatically generate appropriate emergency plans. First, the emergency plan is represented as a text tree according to its layout markups and sentence-sequential relations. Then, process model elements, including four-level response condition formulas, executive roles, response tasks, and flow relations, are identified by rule-based approaches. An emergency response process tree is generated from both the text tree and extracted process model elements, and is transformed to an emergency response process that is modeled as business process modeling notation. Finally, when different disasters occur, a new plan is generated according to the training of historical plan database. A large number of experiments in the actual emergency plan show that this method can extract the emergency response process model, and can generate a suitable new plan.</p>


Author(s):  
O. O. Afolabi ◽  
C.C. Okonofua ◽  
M. O. Adigun ◽  
E. Dosumu ◽  
R. B. Aderoju

Food borne illness prevention system will depend on the extent of food safety control in place through food production, processing, distribution, keeping food at safe temperature and using safe water and raw materials. These stages of production are some of the important points determining food safety. This suggests the need to implement strict hygienic control measures along the food production chain during manufacturing, handling, storage and commercialization of foods. Ninety samples comprising of fifteen Milo (beverage), fifteen golden Morn (cereal), fifteen Maggi (seasoning), fifteen Lucozade boost (energy drink), fifteen Gala (Sausage) and fifteen Indomie (noodles) were collected from five stores of various shops in Lagos, Agbara and Sango Ogun State, Nigeria. Samples were processed and cultured using pour plate and streak plate techniques. Samples were cultured in five media consisting of four selective media and a basal media; Maconkey agar, Mannitol Salt agar, Salmonella Shigella agar, Eosin Methylene Blue agar and Nutrient agar. Differentiation and isolation of various isolates were based on gram-staining technique and biochemical reactions using OXOID MICROBAT TM identification kits. The in vitro assay revealed the presence of five bacteria species namely Staphylococcus aureus, Klebsiellia oxytoca, Proteus mirabilis, Yersinia pseudotuberculosis and Morganella morganii. Prevalence of the various isolates in the culture were found to be 67.66%, 11.27%, 9.77%, 7.51% and 3.75% respectively. The highest colony count (140.6) was obtained from samples (Maggi) from Agbara while the lowest colony count (21.0) was obtained from (Milo) Sango. The mean bacteria load of the isolates was 1.0*107CFU/ml. It was concluded that the hygienic quality of the sampled fast moving consumer products in term of microbiological standards compare favourably with international benchmarks as defined by Codex Alimentarius Commission all the observed ranges of aerobic colony count fall well below the upper threshold of microbial levels for class A products.


Author(s):  
Huaiyu Tian ◽  
Yonghong Liu ◽  
Yidan Li ◽  
Chieh-Hsi Wu ◽  
Bin Chen ◽  
...  

AbstractRespiratory illness caused by a novel coronavirus (COVID-19) appeared in China during December 2019. Attempting to contain infection, China banned travel to and from Wuhan city on 23 January and implemented a national emergency response. Here we evaluate the spread and control of the epidemic based on a unique synthesis of data including case reports, human movement and public health interventions. The Wuhan shutdown slowed the dispersal of infection to other cities by an estimated 2.91 days (95%CI: 2.54-3.29), delaying epidemic growth elsewhere in China. Other cities that implemented control measures pre-emptively reported 33.3% (11.1-44.4%) fewer cases in the first week of their outbreaks (13.0; 7.1-18.8) compared with cities that started control later (20.6; 14.5-26.8). Among interventions investigated here, the most effective were suspending intra-city public transport, closing entertainment venues and banning public gatherings. The national emergency response delayed the growth and limited the size of the COVID-19 epidemic and, by 19 February (day 50), had averted hundreds of thousands of cases across China.One sentence summaryTravel restrictions and the national emergency response delayed the growth and limited the size of the COVID-19 epidemic in China.


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