Results 21 to 30 of about 4,692 (194)

Analysis on the Characteristics of PM2.5 Emissions from Coal-fired Power Plants in Jilin Province [PDF]

E3S Web of Conferences, 2023
The thermal power industry is the largest coal consumer, and the contribution of its air pollutants to PM2.5 has become a hot topic of public concern, which is worthy of in-depth study.
Liu Yi, Zhu Baoyu, Zhao Liang, Wang Jian, Li Hongyan   +4 more
doaj   +1 more source

Effects of particle size distribution on the explosion severity of coal dust

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019
The effects of particle size distribution (PSD) on coal dust explosion severity were investigated using a 20 L vessel. The severity was evaluated by the maximum explosion pressure (Pex), the maximum rate of pressure rise ((dP/dt)ex), and the time spans (t1, t2) between ignition and Pex and between ignition and (dP/dt)ex during a trial. These parameters
Jiangshi Zhang, Longhao Sun, Fangchao Nie, Hejun Zhou   +3 more
openaire   +1 more source

The dependence of particle size on cell toxicity for modern mining dust

Scientific Reports, 2023
Progressive massive pulmonary fibrosis among coal miners has unexpectedly increased. It would likely due to the greater generation of smaller rock and coal particles produced by powerful equipment used in modern mines.
Yi-Hsuan Chen, Dorothy Nguyen, Stephen Brindley, Tiancong Ma, Tian Xia, Jürgen Brune, Jared M. Brown, Candace Su-Jung Tsai   +7 more
doaj   +1 more source

EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN

Rudarsko-geološko-naftni zbornik, 2019
This study investigates the effect of variations of coal dust particles size on the rate of burning of coal dust particles in a 2-liter closed chamber. Coal dust was selected from three different mines with different sizes (149μm, 125μm, 105μm, 74μm, 63μm, 53μm, 44μm, 37μm) for explosion testing in a closed chamber of 2-liters.
Hadis Moradi, Farhang Sereshki, Mohammad Ataei, Mohsen Nazari   +3 more
openaire   +2 more sources

Temporal and spatial distribution and prevention of dust in mining area based on digital fractal principle

矿业科学学报, 2022
In order to reduce the harm of dust dispersion in open-pit coal mine to the mining environment and the damage of personnel and equipment, this paper carried out the research on dust migration, distribution and treatment in open-pit coal mine by taking ...
Zhao Hongbao, Liu Shaoqiang, Kang Qinrong, Li Yue, Jiang Dongmei, Wu Tong   +5 more
doaj   +1 more source

The influence of the coal dust composition on the propagation speed of the combustion front of the coal dust with an inhomogeneous particle distribution in the air [PDF]

Компьютерные исследования и моделирование, 2018
The problem of the combustion of a gas suspension with an inhomogeneous distribution of particles over space occurs exists for the coal dust suspension combustion in combustion chambers and burners.
Kseniya Mikhailovna Moiseeva, Alexey Yurjevich Krainov   +1 more
doaj   +1 more source

RNA Promotes Synapsin Condensates That Organize Synaptic Vesicles in Live Neurons and Enable Localized Translation in Reconstituted System

Advanced Science, EarlyView.
Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic, Zachary M. Geisterfer, Akshita Chhabra, Vladimir M. Jovanovic, Ian Seim, Christian Hoffmann, Antonela Condric, Gerard Aguilar Pérez, Rinse de Boer, Lars T. Hofstede, Jingao Sun, Kiara Freitag, Katja Nowick, Marina Jendrach, Frank L. Heppner, Vladimir Despic, Michaela Müller‐McNicoll, Stephan Sigrist, Geert van den Bogaart, Sofiia Reshetniak, Amy S. Gladfelter, Dragomir Milovanovic   +21 more
wiley   +1 more source

Comparative study of the explosion pressure characteristics of micro- and nano-sized coal dust and methane–coal dust mixtures in a pipe

International Journal of Coal Science & Technology, 2020
Coal dust explosion accidents often cause substantial property damage and casualties and frequently involve nano-sized coal dust. In order to study the impact of nano-sized coal on coal dust and methane–coal dust explosions, a pipe test apparatus was ...
Bo Tan, Huilin Liu, Bin Xu, Tian Wang
doaj   +1 more source

Research on Methane Measurement and Interference Factors in Coal Mines

Sensors, 2022
The detection of methane has always been an important part of coal mine safety. In order to improve the methane measurement accuracy in coal mines and to determine the influence of environmental interference factors on the measurement results, we ...
Xiushan Wu, Jiamin Cui, Renyuan Tong, Qing Li   +3 more
doaj   +1 more source

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source