Results 41 to 50 of about 1,795,114 (414)
Anomalous Hall conductivity and electronic structures of Si-substituted Mn$_{2}$CoAl epitaxial films [PDF]
Phys. Rev. B 97, 054427 (2018), 2017 We study anomalous Hall conductivity ($\sigma$$_{\rm AHC}$) and electronic band structures of Si-substituted Mn$_{2}$CoAl (Mn$_{2}$CoAl$_{1-x}$Si$_{x}$). First-principles calculations reveal that the electronic band structure is like a spin-gapless system even after substituting a quaternary element of Si for Al up to $x = $0.2 in Mn$_{2}$CoAl$_{1-x ...
arxiv +1 more source
Bioelectrochemical Enhancement of Biogenic Methane Conversion of Coal
Energies, 2018 This study demonstrated the enhancement of biogenic coal conversion to methane in a bioelectrochemical anaerobic reactor with polarized electrodes. The electrode with 1.0 V polarization increased the methane yield of coal to 52.5 mL/g lignite, which is ...
Dong-Mei Piao +2 more
doaj +1 more source
Potential usage of fly and bottom ash from thermal power plant ”Nikola Tesla” landfill, Serbia [PDF]
Hemijska Industrija, 2012 In Serbia, the ash from power plants has long been labelled as hazardous waste. With the adoption of the appropriate legislation this ash became secondary raw material with the potential usage.
Čudić Vladica V. +3 more
doaj +1 more source
Meitan xuebaoTo obtain the activity patterns and response characteristics of the overburden strata under different fracturing degrees of the roof, and thereby provide a reference for preventing and controlling roof-dominated rock burst through regional fracturing ...
Jianhong WU +6 more
doaj +1 more source
Microbial diversity and biogenic methane potential of a thermogenic-gas coal mine [PDF]
, 2014 The microbial communities and biogenic methane potential of a gas coal mine were investigated by cultivation-independent and cultivation-dependent approaches.
Jiang, Zheng +3 more
core +1 more source
Methane Emissions from Super-emitting Coal Mines in Australia quantified using TROPOMI Satellite Observations [PDF]
arXiv, 2021 Two years of satellite observations were used to quantify methane emission from coal mines in Queensland, the largest coal-producing state in Australia. The six analyzed surface and underground coal mines are estimated to emit 570+/-98 Gg a-1 in 2018-2019.
arxiv
Energies, 2016 A high pressure oxydesulphurisation technique was investigated to reduce sulphur content, especially at ambient temperature. Prince of Wales coal was chosen for this study.
Moinuddin Ghauri +4 more
doaj +1 more source
Relationships among coking coals and related cokes characteristics: a statistical evaluation [PDF]
, 2018 From 61 coking coals, 36 coal blends were prepared. Using a pilot coke oven, cokes were prepared from both 61 coking coals (Type I cokes) and 36 coal blends (Type II cokes). Coals were characterized by 14 coal characteristics and cokes by Coke Reactivity
Baran, Pavel +4 more
core +1 more source
Stable Dispersion of Coal Fines during Hydraulic Fracturing Flowback in Coal Seam Gas Reservoirs An Experimental Study [PDF]
Energy & Fuels 2020 34 (5), 5566-5577, 2020 In subterranean coal seam gas CSG reservoirs, massive amounts of small-sized coal fines are released during the production and development stages, especially during hydraulic fracturing stimulation. These coal fines inevitably cause mechanical pump failure and permeability damage due to aggregation and subsequent pore throat blockage.
arxiv +1 more source