Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Sifei Liu"'
Autor:
Xumian Qiao, Hassan Siddique, Xinhua Li, Song Zhu, Sifei Liu, Maomao Gu, Haoyu Yang, Donghui Zhang, Qiang Zhao
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract A facile and environmentally friendly ion exchange-assisted surface passivation (IASP) strategy is presented for synthesizing red emitting Mn4+-activated fluoride phosphors. A substantial, pristine Mn4+-free shell layer, applied as a coating
Externí odkaz:
https://doaj.org/article/55de23395be04877b6d61d7bea36a46a
Autor:
Fanfei Meng, Hai Pu, Takashi Sasaoka, Hideki Shimada, Sifei Liu, Tumelo K.M Dintwe, Ziheng Sha
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 4, Pp 643-651 (2021)
Bulking characteristics of gangue are of great significance for the stability of goafs in mining overburden in the caving zones. In this paper, a particle discrete element method with clusters to represent gangue was adopted to explore the bulking co
Externí odkaz:
https://doaj.org/article/146754603a20413e8b828616dfb346c6
Autor:
Junhui Wang, Zhijun Wan, Hongwei Zhang, Jingchao Wang, Yi Wang, Yuan Zhang, Sifei Liu, Ning Lu
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
Deep-circling thermal water upwelling and trickling to high geo-temperature roadway obviously alter the microclimate in mines, which brings difficulty to the prediction of airflow temperature and humidity. This is the basis of air-conditioning coolin
Externí odkaz:
https://doaj.org/article/970904eebfc24d7bb16cff19ff53fed0
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
In order to evaluate the coal pillar stability in recovery of residual room pillars under different mining rates, this paper studies the influence of loading rate on the mechanical properties of the coal body. The uniaxial compression tests of coal s
Externí odkaz:
https://doaj.org/article/fd50267c344548bda2fbcf9823dc82e7
Publikováno v:
Geofluids, Vol 2021 (2021)
Cutting force is the key signal to realize intelligent control of shearer and mastering the change process of cutting force is helpful to improve the adaptive cutting of shearer. In this paper, full scale rock cutting tests are used to carry out sing
Externí odkaz:
https://doaj.org/article/10ae47f7058d40dcb59eb986f6ca1d07
Autor:
Hao Zhang, Sifei Liu, Haowu Chang, Mengping Zhan, Qing-Ming Qin, Borui Zhang, Zhi Li, Yuanning Liu
Publikováno v:
Frontiers in Genetics, Vol 10 (2019)
In recent years, studies have shown that phytopathogenic fungi possess the ability of cross-kingdom regulation of host plants through small RNAs (sRNAs). Magnaporthe oryzae, a causative agent of rice blast, introduces disease by penetrating the rice
Externí odkaz:
https://doaj.org/article/9e4347de5ef1476db05db212fa43e179
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
The stability of coal wall in deep longwall face has always been a research hotspot. In this study, pure vibration signals in the coal wall during the operation of mining machinery were obtained for the first time, and their energy is mainly concentr
Externí odkaz:
https://doaj.org/article/420f1187371b44c08e90b57e2b891fbb
Autor:
Ziheng Sha, Sifei Liu, Fanfei Meng, Hideki Shimada, Takashi Sasaoka, Hai Pu, Tumelo K. M. Dintwe
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 4, Pp 643-651 (2021)
Bulking characteristics of gangue are of great significance for the stability of goafs in mining overburden in the caving zones. In this paper, a particle discrete element method with clusters to represent gangue was adopted to explore the bulking co
Publikováno v:
Geofluids, Vol 2021 (2021)
Cutting force is the key signal to realize intelligent control of shearer and mastering the change process of cutting force is helpful to improve the adaptive cutting of shearer. In this paper, full scale rock cutting tests are used to carry out sing
Autor:
Dyson Moses, Hideki Shimada, Sifei Liu, Akihiro Hamanaka, Takashi Sasaoka, Fanfei Meng, Tumelo K. M. Dintwe
Publikováno v:
Journal of Geoscience and Environment Protection. :121-131
Underground mining is an economically viable option for exploiting ore reserves deemed uneconomic after open pit mining. However, underground development can have adverse effects on the above existing open pit slope walls. As a goal of this paper, id