In this paper, the anisotropic thermal conductivity characteristics of graphene wrinkles are observed for the first time using a non-equilibrium molecular dynamics method. Our results reveal that the wrinkling level has little effect on the thermal conductivity along the wrinkling direction. However, the wrinkling level plays an important role in the reduction of thermal conductivity along the ...

Exploitation of lignite in continuous surface mines requires removing masses overburden, which are hauled to a dumpsite. There some technological arrangements where the overburden is transported several dozen meters down spreader operating on lower located dumping level. Depending an angle declined transportation route, there possibility convert potential gravitational energy conveyed into elec...

Abstract In multiple-seam mining, severe deformation of roadways and coal bursts caused by overlying pillars can occur in the lower seams. Overburden movement ground pressure behaviour when mining thick seam below strong roof upper four extracted seams were investigated Tongxin mine, China. The numerical model indicated that abutment stress is affected as suggested bubble cantilever beam models...

Strong mine pressure has a great impact upon the safety production of coal mines. Microseismic information provides more advanced technical means for overburden fracture dynamic identification and mechanism research, since it contains rich on rock sources. In this study, isolated LW8102 working face in Tongxin Mine was investigated order to propose spatio-temporal microseismic event data analys...

Reclaiming subsidence and waterlogged zones caused by coal mining to maintain food feed supplies is an urgent issue in China. Utilizing gangue (CG) as a filling matrix construct different profiles of reclaimed land has downsides, e.g., due its low conservative capability water-fertilizer crop yield, lack quantitative evaluation soil quality, limiting factors growth. Quantifying the quality prin...

Abstract Cases of landslides on clay shale slopes have been an intriguing study in Indonesia. Most the failed due to weathering rock. As studies focused properties shale, several FEM analyses indicated a unique translational type failure between interface and its overburden. However, modeling case was still limited. This aims evaluate landslide using thin-soil model software. The used two condi...

in this paper, the measurement of the viscosity of zno in ethylene glycol, propylene glycol, mixture of ethylene glycol and water (60:40 by weight), and a mixture of propylene glycol and water (60:40 by weight) and the thermal conductivity in ethylene glycol and propylene glycol as base fluids in the range of temperature from 25 ºc to 60 ºc are investigated. the results indicate that as the tem...