Results 51 to 60 of about 166,116,027 (191)

Dust emission in powder handling: Free falling particle plume characterisation [PDF]

open access: yes, 2009
Dust generation during solids handling, principally from the free falling of bulk materials and their impact on stockpiles, can be a health threat for operators and a cause of dust explosions.
Ansart, Renaud   +2 more
core   +1 more source

High-speed online detection system of coal dust concentration based on hardware acceleration

open access: yesMeikuang Anquan, 2023
A high speed on-line measuring device for coal dust concentration based on Mie scattering theory equation was designed by using Xilinx ZYNQ-7010 chip.
Fengyuan ZHANG, Yemin ZHANG, Guibin YAO
doaj   +1 more source

Anchoring MoS2 Petal‐Like Nanosheets on Coal‐Based Carbon Nanofibers by Surface Bonding Enable Li+/Na+ Batteries to Achieve Fast‐Charging Capabilities

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The unique structure connected by CS and COS interfacial bonds accelerates the reaction kinetics of lithium/sodium‐ion storage, while the addition of coal led to an increase in the mechanical strength of the carbon nanofibers, which improved the conductivity and stability of the materials.
Zhenjiang Lu   +8 more
wiley   +1 more source

Study on the effect of humidity on coal mine dust concentration monitoring and its compensation strategy

open access: yesGong-kuang zidonghua
The humidity in mines significantly affects the monitoring quality of coal mine dust concentration. This study aims to improve the precision of dust concentration monitoring in high-humidity underground coal mine conditions, through investigating the ...
ZHANG Anran
doaj   +1 more source

Toward a Paradigm Shift in Low‐Temperature SCR Catalyst Design: Defect Engineering and Data‐Driven Integration

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work systematically reviews the key factors influencing the performance of low‐temperature NH3‐SCR. The mechanism and challenges of defect engineering strategies, such as oxygen vacancies, heteroatom doping, crystal facet exposure, and surface reconstruction, in controlling both activity and selectivity were analyzed.
Rongrong Kan   +3 more
wiley   +1 more source

Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulates

open access: yesThe Economic Journal, EarlyView., 2018
The negative consequences of long‐term exposure to particulate pollution are well established but a number of studies find no effect of short‐term exposure on health outcomes. The high correlation of industrial pollutants complicates the estimation of the impact of individual pollutants on health.
Timothy J. Halliday   +2 more
wiley   +1 more source

Experimental study of surfactants’ performance for suppressing coal dust with respirable size [PDF]

open access: yes, 2023
Long-term exposure to coal dust can lead to severe health problems in coal workers, including Coal Workers\u27 Pneumoconiosis, making effective control of coal dust in underground mines essential.
Guang Xu   +9 more
core   +1 more source

Effect of particle size of coal dust on explosion pressure

open access: yesJournal of Measurement Science and Instrumentation, 2019
The effect of the particle size of coal dust on explosion pressure and the rising rate of explosion pressure is studied. Three coal dusts from Lingan Coal Mine in Canada and Datong Coal Mine in China are selected to test.
JIAO Feng-yuan   +3 more
doaj  

Additives to Coal-Based Fuel Pellets for the Intensification of Combustion and Reduction in Anthropogenic Gas Emissions

open access: yesApplied Sciences, 2020
Cylinder-shaped fuel pellets that were 3 mm in diameter and 3 mm in height, with a mass of 20 mg, were produced by compressing dry coal processing waste under the pressure of 5 MPa. The first group of pellets from coal dust with a particle size less than
Dmitriy Klepikov   +3 more
doaj   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon   +3 more
wiley   +1 more source

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