Results 21 to 30 of about 17,396 (250)

A New Quantitative Method for Risk Assessment of Coal Floor Water Inrush Based on PSR Theory and Extension Cloud Model

open access: yesGeofluids, 2021
In order to scientifically and reasonably assess the risk of water inrush from the coal seam floor, considering the influence of natural environmental factors such as hydrogeology, mining, and human intervention, the PSR model of ecosystem health ...
Bingyou Jiang   +7 more
doaj   +1 more source

Research on secondary explosion characteristic of coal dust

open access: yesGong-kuang zidonghua, 2018
Influence of concentration, particle size and ignition energy of coal dust on secondary explosion characteristic of coal dust were studied by use of 20 L spherical explosion device, and the secondary explosion characteristic of coal dust was compared ...
LIU Haoxiong   +5 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

open access: yesRudarsko-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.
Hadis Moradi   +3 more
doaj   +1 more source

Study on the Characteristics and Influence Factor of Methane and Coal Dust Gas/Solid Two-Phase Mixture Explosions

open access: yesFire, 2023
This research aimed to the characteristics and influence factor of methane and coal dust gas/solid two-phase mixture explosions by experiment. Through comparative analysis of flame propagation characteristics, pressure, flame temperature and products ...
Yue Wang   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +21 more
wiley   +1 more source

Challenges and enablers in fluidization technology

open access: yesAIChE 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

Study on moisture re-absorption characteristics and equilibrium prediction model of coal dust with different rank

open access: yesMeitan kexue jishu, 2023
Moisture re-absorption is an effective method to measure wettability of coal dust, but for different types of coal dust, there are difference in their hydrophilicity.
Fei WANG   +5 more
doaj   +1 more source

Coal dust dispersion from a coal storage pile [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
Open coal storage piling is considered as pollution concerned activity because when the air is dry and windy, the coal dust can disperse and cover large area causing air pollution. Knowing in advance the concentration and area affected by the coal dust
Pet Techarat, Paitoon Tontiwachwuthikul
doaj   +1 more source

Granular Bed Filtration of Coal Pyrolysis Gas: Effects of Media Reactivity on Dust Removal and Products

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Granular bed filtration is a promising technology for removing dust from high‐temperature coal pyrolysis gas. In this work, the reactivity of coal pyrolysis products over ceramsite, char, ultrastable Y‐type (USY) zeolite, and quartz particles was compared.
Shuaiqiang Yang   +4 more
wiley   +1 more source

CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview

open access: yesInternational Journal of Mining Science and Technology, 2020
Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters
Santosh Kumar Ray   +6 more
doaj   +1 more source

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