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[期刊论文] 作者：Zhai Cheng,
来源：矿业科学技术学报：英文版 年份：2015
Aiming to resolve the technical problems of lower gas concentrations and a reduced effective drainage period caused by gas-drainage borehole fracture developmen...
[期刊论文] 作者：Cheng-bo Zhai,Cheng Yang,
来源：黑龙江科技学院学报 年份：2011
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：Zhai Cheng,Yu Xu,Ni Guanhua,Li,
来源：矿业科学技术学报：英文版 年份：2013
The geological condition of Chinese coal mines are complex and high gassy,which account for ffty percent to seventy percent.Because of the abundant pores and cr...
[期刊论文] 作者：Zhai Cheng Li Min Sun Chen Zha,
来源：矿业科学技术学报：英文版 年份：2012
Aiming at the uncontrollable problem of extension direction of coal seam hydraulic fracturing,this study analyzed the course of fractures variation around the b...
[期刊论文] 作者：Li Xianzhong,Lin Baiquan,Zhai Cheng,Ni Guanhua,Li Ziwen,,
来源：International Journal of Mining Science and Technology 年份：2012
Aiming at actual condition of poor effect of hole sealing for the reason of poor cement paste fluidity in the process of coal mine gas drainage,by adding a wate...
[期刊论文] 作者：Zhang Chao,Lin Baiquan,Zhou Yan,Zhai Cheng,Zhu Chuanjie,,
来源：International Journal of Mining Science and Technology 年份：2013
To improve the gas extraction efficiency of single seam with high gas and low air permeability,we developed the“fracturing-sealing”integration technology,and...
[期刊论文] 作者：Zhai Cheng,Yu Xu,Ni Guanhua,Li Min,Hao Zhiyong,,
来源：International Journal of Mining Science and Technology 年份：2013
The geological condition of Chinese coal mines are complex and high gassy,which account for ffty percent to seventy percent.Because of the abundant pores and cr...
[期刊论文] 作者：Shizhuang WANG,Xingqun ZHAN,Yawei ZHAI,Cheng CHI,Jiawen SHEN,
来源：中国航空学报:英文版 年份：2021
Formation flight of multiple Unmanned Aerial Vehicles(UAVs)is expected to bring significant benefits to a wide range of applications.Accurate and reliable relative position information is a prerequisite to safely maintain a fairly close dis......
[期刊论文] 作者：Ni Guanhua,Lin Baiquan,Zhai Cheng,Li Quangui,Peng Shen,Li Xianzhong,,
来源：International Journal of Mining Science and Technology 年份：2014
In order to understand the kinetic characteristics of coal gas desorption based on the pulsating injection(PI), the research experimentally studied the kinetic...
[期刊论文] 作者：Zhai Cheng,Li Min,Sun Chen,Zhang Jianguo,Yang Wei,Li Quangui,,
来源：International Journal of Mining Science and Technology 年份：2012
Aiming at the uncontrollable problem of extension direction of coal seam hydraulic fracturing,this study analyzed the course of fractures variation around the b...
[期刊论文] 作者：Li Quangui,Lin Baiquan,Zhai Cheng,Ni Guanhua,Peng Shen,Sun Chen,Cheng Yanying,,
来源：International Journal of Mining Science and Technology 年份：2013
Variable frequency,a new pattern of pulse hydraulic fracturing,is presented for improving permeability in coal seam.A variable frequency pulse hydraulic fractur...
Evidence for two types of Aquilegia ecalcarata and its implications for adaptation to new environmen
[期刊论文] 作者：Lei Huang,Fang-Dong Geng,Jing-Jing Fan,Wei Zhai,Cheng Xue,Xiao-Hui Zhang,Yi Ren,Ju-Qing Kang,
来源：植物多样性（英文版） 年份：2022
Spurs have played an important role in the radiation of the genus Aquilegia,but little is known about how the spurless state arose in A.ecalcarata.Here we aim to characterize the genetic divergence within A.ecalcarata and gain insights into......
[会议论文] 作者：Chaoyang Ge,Lianxue Zhang,Yi Wan,Li Tao,Xin Fang,Wenhao Zhai,Cheng Tian,Yanping Li,Guangzhao Ran,
来源：第十一届全国硅基光电子材料及器件研讨会 年份：2016
The reported Ⅲ-Ⅴ/Si hybrid lasers are almost transverse–electric(TE)polarized,here we propose a Ⅲ-Ⅴ/Si hybrid laser,whose output is dominantly transverse magnetic(TM)light.The essential element of the...
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