Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Qingxiang Dong"'
Publikováno v:
Frontiers in Earth Science, Vol 10 (2023)
CBM (CBM) development in coal mining area has good safety, economic and energy benefits, but methane emission is common in surface well sites. In view of this, taking the CBM wells in Qinshui County of Shanxi Province as an example, the methane emiss
Externí odkaz:
https://doaj.org/article/78edb5c5d7714af4b73ae6b98c4aaa23
Publikováno v:
IEEE Access, Vol 7, Pp 12575-12583 (2019)
This paper presents a novel compact single-layer ultra-wideband phase shifter using weakly coupled lines, which contains a main line and a reference line. The basic equations of this phase shifter are calculated based on the even-odd mode theory. The
Externí odkaz:
https://doaj.org/article/b0eb1df488e443f093862454f0d9cee8
Publikováno v:
China Communications. :1-11
Publikováno v:
IEEE Microwave and Wireless Components Letters. 32:1411-1414
Autor:
Shuaifeng Lyu, Shengwei Wang, Junyang Li, Xiaojun Chen, Lichao Chen, Qingxiang Dong, Xiaofei Zhang, Pengcheng Huang
Publikováno v:
Rock Mechanics and Rock Engineering. 55:1759-1776
Publikováno v:
AEU - International Journal of Electronics and Communications. 158:154462