Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jian-jian Zhao"'
Publikováno v:
Frontiers in Oncology, Vol 12 (2022)
BackgroundThe systemic immune-inflammation index (SII) is a significant prognostic factor for neoplastic diseases. However, the prognostic value of SII in patients with cholangiocarcinoma (CCA) remains unclear. This meta-analysis aimed to investigate
Externí odkaz:
https://doaj.org/article/ca3bbf4d9f7f4035a7db8c6aa4ebaf13
Publikováno v:
Geofluids, Vol 2020 (2020)
Hydraulic support plays a key role in ground control of longwall mining. The smart prediction methods of support load are important for achieving intelligent mining. In this paper, the hydraulic support load data is decomposed into trend term, cycle
Externí odkaz:
https://doaj.org/article/3aa317e6cf53421b931984bb558f3c82
Publikováno v:
Geofluids, Vol 2020 (2020)
Hydraulic support plays a key role in ground control of longwall mining. The smart prediction methods of support load are important for achieving intelligent mining. In this paper, the hydraulic support load data is decomposed into trend term, cycle
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 100:28-39
Bedding planes are common in coal seams, and have a significant influence on the crack expansion of coal masses. In this paper, the fracture patterns of coal masses during the blasting process are explored. Firstly, the damage zone at the tip of bedd
Autor:
Yong Zhang, Jian-jian Zhao
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources. 3:405-414
The failure of layered rock in underground mining face may be influenced by the slipping among the layers. The shear failure around the excavation circular roadway is the main failure type in layered rock. To Study the rock failure in layered rock, t
Publikováno v:
Engineering Fracture Mechanics. 225:106749
Borehole blasting is a technique widely applied to form fracture networks in coal masses. There are many original cracks in coal masses, such as bedding planes and cleat planes. Coal masses are also subjected to high in-situ stress deep underground.
Autor:
Xiao-Li Cheng, Kun Li, Changqing Xu, Jing Yang, Dong-Dong Qiao, Hongli Yang, Yan-Qing Li, Jian-Jian Zhao
Publikováno v:
Tumori Journal. 102:131-134
Background The nonhomologous end-joining (NHEJ) pathway is the main mechanism repairing DNA double-strand breaks (DSBs) in human cells. This research was designed to study the association between selected variants in NHEJ members and esophageal squam
Publikováno v:
Tumori Journal. 101:24-29
Background The XRCC6 and XRCC5 genes are part of the nonhomologous end-joining (NHEJ) pathway, which is the main mechanism repairing DNA double-strand breaks (DSBs) in human cells. Genetic variations of XRCC6 and XRCC5 might contribute to esophageal
Publikováno v:
Advanced Materials Research. :234-240
In order to solve the problem of low recovery rate of top-coal during fully-mechanized coal caving with large inclination angle, the optimization of fully-mechanized hard top-coal caving with large inclination angle is studied in this paper respectiv
Publikováno v:
Advanced Materials Research. :1362-1374
In order to make sure the reasonable roadway layout in lower seam of close coal mining group coordination in Lijiahao coal mine, firstly, applying the theoretical analysis and geological radar detection to get the influence depth of mining from the u