نتایج جستجو برای: longwall working
تعداد نتایج: 203882 فیلتر نتایج به سال:
In longwall top coal caving (LTCC), due to the fracture and migration of coal, roof will break collapse, which causes serious impact damage hydraulic support. Therefore, we aimed reveal relationship between instability effect bearing characteristics support in LTCC face. Based on occurrence conditions 08 mining area Shilawusu Coal Mine, model upper immediate was established, working resistance ...
Coal is still the major resource to meet expanding energy demand and widely used in coal-fired thermal power plants taking advantage of rich reserves cost-effective production. Longwall mining a method that Türkiye, line with trend world, enables economical sustainable production underground coal resources mechanized equipment. Estimation stress distribution concentration zones excavation face ...
In this paper, I will show and describe a method of integrating infrared images with 3D model the front an excavation in longwall type workings. also test created for its potential usefulness geological prospecting, used looking changes layout at excavation. Geological information on amount coal is important economic side The mine does not want to take out waste rock, but mostly safety operatio...
Various visual cues provide information about depth and shape in a scene. When several of these cues are simultaneously available in a single location in the scene, the visual system attempts to combine them. In this paper, we discuss three key issues relevant to the experimental analysis of depth cue combination in human vision: cue promotion, dynamic weighting of cues, and robustness of cue c...
This paper aims at explaining how intermediaries influence collaborative innovation projects, suggesting a conceptual-theoretical framework about intermediaries’ roles and practices. The qualitative research was developed through the case study of the Orange Service Call and Reward project performed by the National Endowment for Science, Technology and the Arts (NESTA) for Orange Labs, the R&D ...
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