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Mines - Europe PMC

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Last Updated: 18 September 2022

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Characterization of regional CH 4 emanation and total particulate pollution from the underground coal mines

The emission of methane from the underground coal mine is a global threat. In the field of Balochistan Pakistan, the study seeks to determine the release of potent toxic gases and atmospheric dust in the suburbs of underground coal mines. The variables were not associated with each other, so advancing data with correlation matrix analysis apprehended interrelation. Air quality variables were found above the safe allowable limits established by various standards. According to Pearson correlation matrix review, CH 4 had a strong negative correlation with O2 despite a strong negative correlation with O2.

Source link: https://europepmc.org/article/PPR/PPR545598


Bio-accumulation effects of heavy metals Pb, Zn and Cd on Procecidochares utilis parasitism to Eupatorium adenophorum at Suzu metal mines, Yunnan.

Procecidochares uses an obligatory parasitic spider to Eupatorium adenophorum. The aim of this research is to determine the trends of heavy metal transfer and bioaccumulation in the soil-E. adenophorum - P. utilis system, as well as their effect on the parasitic effect of P. utilising to P. adenophorum to reflect the effects of heavy metals on the obligate parasitic insect and its host. The parasitic rate of P. utilising a single plant and branch in a single branch is positively related to distance, according to the results. With an increase in distance away from the mining area's downtown, the metals content of the soil in E. adenophorum and P. utilize reduced dramatically. These metals can be found in E. adenophorum and P. using the soil-E. adenophorum-P. system, which is likely to have an effect on the parasitic activity of these metals.

Source link: https://europepmc.org/article/MED/36105475


A novel method for localization and tracking in NLOS environments of coal mines

Non-line-of-sight propagation has hampered the success of target localization and monitoring in coal mines. We introduce the NLOS error vector and the correction factor vector first, and determine whether there is NLOS propagation based on the measurement value's variation. The improved Chan method is designed to reduce the NLOS error of localization results and increase the localization's accuracy, according to the researcher. Simulation results indicate that the revised Chan localization scheme described in this paper will eliminate most of the NLOS errors and improve positioning accuracy, and that the final CTPF has less tracking error than the standard resampling filter algorithm.

Source link: https://europepmc.org/article/PPR/PPR535611

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions