Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Qingyi TU"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract To scientifically and effectively manage exhaust pollution in underground confined spaces and reduce hazards from personnel exhaust exposure, a systematic study of the distribution characteristics of diesel locomotive exhaust emissions in mi
Externí odkaz:
https://doaj.org/article/2bba4b992ad6403b98552db68fa74f0a
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 73-83 (2024)
In order to study the influence of low temperature liquid nitrogen immersion treatment on the pore structure and fractal characteristics of middle grade coal in Huainan Mining Area, coal samples were treated with different liquid nitrogen immersion t
Externí odkaz:
https://doaj.org/article/9b406ebf14f54f08969441a80a2bc2d3
Publikováno v:
Measurement + Control, Vol 57 (2024)
The issue of quality-related fault detection in the industrial process has attracted much attention in recent years. The partial least squares (PLS) is considered an efficient tool for predicting and monitoring. The modified partial least squares (MP
Externí odkaz:
https://doaj.org/article/e17992a7d0ab456caf9c0a78f8c20ad9
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 4, Pp 729-742 (2021)
This research reviewed the mechanics and gas desorption properties of intact coal, and tested the crushing work ratios of different intact coals, and then, studied the stress conditions for the failure or crushing of intact coal and the gas demand fo
Externí odkaz:
https://doaj.org/article/309970e34a5848cf891502f1826bcedc
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Coal mine dust is an important factor leading to occupational diseases of mine workers, however, it remains poorly understood about the non-viral pathogens in coal mine dust. In this study, bacterial communities in total dust and respirable dust from
Externí odkaz:
https://doaj.org/article/d7c074118dbc47a0a6d80943bc76fca4
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 6, Pp 889-899 (2020)
Severe gas disasters in deep mining areas are increasing, and traditional protective coal seam mining is facing significant challenges. This paper proposes an innovative technology using soft rock as the protective seam in the absence of an appropria
Externí odkaz:
https://doaj.org/article/3f83ce354ec642469d2e13d7adf4169d
Publikováno v:
Geofluids, Vol 2021 (2021)
Coal and gas outburst is the extreme instability caused by stress, gas, and coal. In this review article, dominant factors and inducing factors of outburst were summarized; geologic features of typical outburst cases and the effects of tectonic movem
Externí odkaz:
https://doaj.org/article/242af9e117754938b0696834eef71bbd
Autor:
Xiang Cheng, Guangming Zhao, Yingming Li, Xiangrui Meng, Qingyi Tu, Shunjie Huang, Zhihong Qin
Publikováno v:
Advances in Materials Science and Engineering, Vol 2021 (2021)
The protective layer mining method of the traditional deep coal seam in has been confronted with great challenges, and it is difficult for coal and gas to be extracted together. Taking the occurrence conditions of III1 mining area of Luling Coal Mine
Externí odkaz:
https://doaj.org/article/4d39a1bcd7f347c9bed5c953bb8b1419
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
In order to study the mechanical properties and energy dissipation of gas coal under dynamic and static loads, the static loading and impact tests of different strain rates were carried out by the testing systems of SZW-1000 microcomputer servo press
Externí odkaz:
https://doaj.org/article/ca8e213c098348c3af869263405a3e7f
Publikováno v:
Geofluids, Vol 2019 (2019)
In order to determine the controlling factors affecting coalbed gas migration in the Xutuan coal mine, Huaibei Coalfield, China, overlying caprocks with Quaternary and Neogene formation (loose bed), Paleogene formation (Redbed), and coal-bearing stra
Externí odkaz:
https://doaj.org/article/d40dc27ba12f46a7b8c852d69568b4ee