Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Shifeng Dai"'
Publikováno v:
ACS Omega, Vol 6, Iss 9, Pp 6206-6217 (2021)
Externí odkaz:
https://doaj.org/article/7ba4a49a439340eba023a68e729bf150
Publikováno v:
International Journal of Coal Science & Technology, Vol 7, Iss 4, Pp 633-651 (2020)
Abstract The high volatile C bituminous-rank, Bolsovian-age Princess No. 3 coal, a correlative of the heavily-mined Hazard No. 7 coal and the Peach Orchard and Coalburg Lower Split coals, was investigated three sites at a mine in Greenup County, Kent
Externí odkaz:
https://doaj.org/article/ed4d00cd5b69412798630840d921fe10
Autor:
Shifeng Dai, Sergey I. Arbuzov, Igor Yu. Chekryzhov, David French, Ian Feole, Bruce C. Folkedahl, Ian T. Graham, James C. Hower, Victor P. Nechaev, Nicola J. Wagner, Robert B. Finkelman
Publikováno v:
Minerals, Vol 12, Iss 9, p 1154 (2022)
Critical elements in coal and coal-bearing sequences (e.g., Li, Sc, V, Ga, Ge, Se, Y and rare earth elements, Zr, Nb, Au, Ag, platinum group elements, Re, and U) have attracted great attention because their concentrations in some cases may be compara
Externí odkaz:
https://doaj.org/article/9265154267c94bf9b69d56b972c071bc
Publikováno v:
ACS Omega, Vol 3, Iss 12, Pp 17637-17645 (2018)
Externí odkaz:
https://doaj.org/article/450e6c0d79fa40f5ae6514c241506867
Autor:
Xiao Li, Shifeng Dai, Victor P. Nechaev, Ian T. Graham, David French, Xibo Wang, Lei Zhao, Jingtao Zhao
Publikováno v:
Minerals, Vol 11, Iss 1, p 19 (2020)
This paper reports the mineralogy and geochemistry of the Late Permian C1 Coal from Bole and Laibin mines in eastern Yunnan, Southwestern China (C1 Coal in Laibin mine is composed of three layers termed B1, B2, and B3). The coals are characterized by
Externí odkaz:
https://doaj.org/article/3e0779d5ddc64899b8e83d58a535a644
Publikováno v:
Minerals, Vol 5, Iss 4, Pp 894-918 (2015)
The Harlan, Kellioka, and Darby coals in Harlan County, Kentucky, have been among the highest quality coals mined in the Central Appalachians. The Middle Pennsylvanian coals are correlative with the Upper Elkhorn No. 1 to Upper Elkhorn No. 3½ coals
Externí odkaz:
https://doaj.org/article/69c3d5338ef84cacb90d08af1ce4d207
Autor:
James C. Hower, Cortland F. Eble, Jennifer M. K. O'Keefe, Shifeng Dai, Peipei Wang, Panpan Xie, Jingjing Liu, Colin R. Ward, David French
Publikováno v:
Minerals, Vol 5, Iss 3, Pp 592-622 (2015)
This study presents recently collected data examining the organic petrology, palynology, mineralogy and geochemistry of the Gray Hawk coal bed. From the Early Pennsylvanian, Langsettian substage, Gray Hawk coal has been mined near the western edge of
Externí odkaz:
https://doaj.org/article/6413fa0402fb4666ac82f32cf5434224
Publikováno v:
Minerals, Vol 6, Iss 2, p 45 (2016)
The clay mineralogy of pyroclastic Nb(Ta)-Zr(Hf)-REE-Ga mineralization in Late Permian coal-bearing strata from eastern Yunnan Province; southwest China was investigated in this study. Samples from XW and LK drill holes in this area were analyzed usi
Externí odkaz:
https://doaj.org/article/e9c0af76e9c749e8bd0971efe4e2f262
Autor:
Minglian Shen, Shifeng Dai, Victor P. Nechaev, David French, Ian T. Graham, Shande Liu, Igor Yu. Chekryzhov, Irina A. Tarasenko, Shaowei Zhang
Publikováno v:
Gondwana Research. 113:71-88
Autor:
Ruoyu Sun, Fei Cao, Shifeng Dai, Bing Shan, Cuicui Qi, Zhanjie Xu, Pengfei Li, Yi Liu, Wang Zheng, Jiubin Chen
Publikováno v:
Environmental Science & Technology.