Results 1 to 10 of about 3,783 (144)

Study of the Effect of Rescuers and the Use of a Massive Alarm in a Population in a Disaster Situation

open access: yesSustainability, 2023
Faced with an ongoing or imminent danger, crisis managers must do their utmost to protect the exposed population and limit the extent of the disaster. More than during the pre- and post-disaster phases, time is of the essence. This temporal specificity of the disaster is essential compared to the risk.
Valentina Lanza   +2 more
exaly   +4 more sources

RTCC-Net: tropical cyclone generation classification model based on multi-source information fusion [PDF]

open access: yesScientific Reports
Tropical cyclones are among the most destructive extreme weather phenomena, and accurately determining whether a tropical cloud cluster will develop into a tropical cyclone is crucial for disaster prevention and mitigation. Considering that previous deep
Wei Tian   +3 more
doaj   +2 more sources

Thunderstorm disaster prediction based on enhanced GWO optimized BP neural network [PDF]

open access: yesITM Web of Conferences, 2022
Aiming at the problem that traditional BP algorithm is prone to fall into local optimum when carrying out thunderstorm disaster prediction, a thunderstorm disaster prediction method based on BP neural network optimized by enhanced GWO algorithm is ...
Lv Yana, Qin Xutong, Zhang Bin, Du Xiuli
doaj   +1 more source

Research on ultraviolet image perception method of mine electric spark and thermal power disaster

open access: yesGong-kuang zidonghua, 2022
The electric leakage of underground cables and electrical equipment in coal mine, electromotive force discharge induced by high-power radio transmission on metal support and electromechanical equipment metal will generate electric spark, which will then ...
SUN Jiping   +3 more
doaj   +1 more source

A perception alarm method for coal mine rock burst and coal and gas outburst based on burial image features

open access: yesGong-kuang zidonghua, 2023
The burial image features of a large amount of black coal rock thrown out during rock burst and coal and gas outburst are analyzed. The features include changes in the area of the monitoring area's color and corresponding graphics, changes in the number ...
SUN Jiping, CHENG Jijie, WANG Yunquan
doaj   +1 more source

Coal mine rock burst and coal and gas outburst perception alarm method based on color image

open access: yesGong-kuang zidonghua, 2022
The paper analyzes the image characteristics of the thrown coal and rock when rock burst and coal and gas outburst occur. ① The coal and rock thrown out during rock burst and coal and gas outburst are mainly black, but the underground equipment of the ...
SUN Jiping, CHENG Jijie, WANG Yunquan
doaj   +1 more source

Study on the perception and alarm method of coal mine rock burst and coal and gas outburst

open access: yesGong-kuang zidonghua, 2022
The paper puts forward a perception and alarm method of rock burst and coal and gas outburst based on temperature. The infrared thermal imager is used to monitor the temperature of objects, and the methane sensor is used to monitor the concentration of ...
SUN Jiping, CHENG Jijie
doaj   +1 more source

Coal mine rock burst and coal and gas outburst perception alarm method based on thermal infrared image

open access: yesMeitan xuebao, 2023
According to the disaster mechanism of rock burst, and coal and gas outburst is not completely clear, and they still occasionally occur, which seriously threatens the safety of coal mine production.
Jijie CHENG, Yi LIU, Xiaowei LI
doaj   +1 more source

Numerical simulation on the influence of low air pressure upon smoke spread and fire alarm process

open access: yesCase Studies in Thermal Engineering, 2021
The airplane cargo fire is a severity disaster for the airplane in flight. The fire alarm system in cargo compartment plays an important part of the flight safety, which is a useful method to reduce the severity fight fire. However, the inflight altitude
Lei Xu, Wei Zheng
doaj   +1 more source

Research on method of coal mine gas and coal dust explosion perception alarm and explosion source judgment

open access: yesGong-kuang zidonghua, 2020
Characteristics of coal mine gas and coal dust explosion are analyzed: Concentration of O2 in air decreases rapidly, while concentrations of CO2, CO and other toxic and harmful gases increase rapidly; Ambient temperature rises rapidly, and air pressure ...
SUN Jiping
doaj   +1 more source

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