Results 81 to 90 of about 34,944 (257)
Prospective tendencies of coal mining risk management [PDF]
, 2019 Purpose. The main purpose is to identify underground coal mining risks as well as approaches for their reasonable and efficient management taking into consideration internal production reserves in order to improve technological processes’ efficiency and ...
Diedich, I, Ilyashov, M, Nazimko, V
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Mountain‐top spherules: Criteria to identify natural and synthetic particles
Meteoritics &Planetary Science, EarlyView.Abstract Natural microspherules are important tracers of geologic and environmental processes in modern and ancient deposits. However, anthropogenic contamination can dilute natural collections by releasing synthetic microspherules into the environment.
M. R. Boyd, M. J. Genge
wiley +1 more source
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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Facts About Worker Safety and Health - 2012 [PDF]
, 2012 [Excerpt] This year marks the 41st anniversary of the Occupational Safety and Health Administration (OSHA) and the effective date of the Occupational Safety and Health Act.
AFL-CIO
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ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He +9 more
wiley +1 more source
Research Progress of Explosion Suppression and Isolation Technology of Gas and Coal Dust
Meikuang Anquan, 2020 In this paper, the research progress and development trend of gas and coal dust explosion suppression and isolation technology in China are reviewed and discussed from the aspects of basic research, passive explosion suppression and isolation technology,
SI Rongjun, WANG Lei, JIA Quansheng
doaj +1 more source
High Speed Production of Large Coal to Facilitate Easier and More Effective Cleaning [PDF]
, 2009 Track I: Power GenerationIncludes audio file (14 min.)Due to technical difficulties, the audio portion of this presentation is joined in progress.Most modern mining equipment extracts coal through grinding it from the solid using a set of rotating picks.
Awuah-Offei, Kwame +3 more
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Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract We present novel observations of C‐band Synthetic Aperture Radar (SAR) coherence sensitivities and patterns for snow on first‐year sea ice (FYI) consistent with snow thermodynamics and wind redistribution. Wintertime SAR coherence and backscatter change observations of landfast FYI in Dease Strait, Nunavut, Canada are made using 12‐day repeat ...
John Yackel +8 more
wiley +1 more source
Развитие концепции безопасности производства взрывных работ в угольных шахтах [PDF]
, 2010 Приведены результаты исследований направленных на развитие концепции безопасности производства взрывчатых работ в угольных шахтах, опасных по газу и взрывам угольной пыли.Наведено результати досліджень спрямованих на розвиток концепції ...
Калякин, С. А. +1 more
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