Results 51 to 60 of about 632,462 (160)
Dust formation and evolution in the ejecta of core-collapse supernovae [PDF]
, 2015 Observations of local supernovae over the past couple of decades have reported the presence of dust in the ejecta. The dust masses inferred from observations in mid-infrared and submillimeter wavelengths differ by a factor of 10^2 to 10^4 The composition
Sarangi, Arkaprabha
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Meitan kexue jishuGas/coal dust composite explosion is a complex process that combines homogeneous and heterogeneous combustion. The combustion main control mechanism changes dynamically and the explosion mechanism is more complex, resulting in higher explosion ...
Wentao JI +5 more
doaj +1 more source
Safety Science and Technology, EarlyView.Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang +5 more
wiley +1 more source
Experimental Research on Bituminous Coal Dust Explosibility
工程科学与技术, 2009 :In order to evaluate and control the hazards of coal dust explosion in coal mines and power plants, the explosion characteristics of bituminous coal dusts were tested in a Siwek 20 litre spherical vessel.
Li Hua, Gao Cong, Su Dan, HuangWei-xing
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Arabian Archaeology and Epigraphy, EarlyView.ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer +11 more
wiley +1 more source
Research on ultraviolet image perception method of mine electric spark and thermal power disaster
Gong-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
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Innovation and the great divergence
The Economic History Review, EarlyView.Abstract Recent historical national accounting data show that the timing of the Great Divergence hinges on the different trends in north‐west Europe and the Yangzi Delta region of China. Although north‐west Europe only pulled ahead of the Yangzi Delta after 1700, both the positive trend of GDP per capita in north‐west Europe after 1700 and the negative
Stephen Broadberry, Runzhuo Zhai
wiley +1 more source
Empirical Models of Zones Protecting Against Coal Dust Explosion [PDF]
, 2017 The paper presents predicted use of research’ results to specify relations between volume of dust deposition and changes of its concentration in air. These were used to shape zones protecting against coal dust explosion.
Prostański, D., Dariusz Prostański
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Assessing the effectiveness of inertization of brown coal dust with limestone rock dust [PDF]
Podzemni Radovi, 2017 An assessment of the effectiveness of inertization of coal dust with inert dust is an important step in prevention of coal dust explosions. According to the tests on their explosive properties, coal dusts from all the mines in Bosnia and Herzegovina ...
Marković Jelena +2 more
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Chemical Engineering Transactions, 2018 In order to study the propagation characteristics of coal dust explosion in the angular branch, gambit software is used to establish a model of the pipe network and to divide the grid.
Baichao Song, Yucheng Li
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