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[期刊论文] 作者:QingBai Wu,MingYong Li,YongZhi, 来源:黑龙江科技学院学报 年份:2009
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:Renbo Xu,Hongjian Li,Yongzhi L, 来源:电路与系统(英文) 年份:2011
A new type of high power LED drivers is proposed by adopting an improved two-stages non-isolated configuration. In order to improve power factor and achieve acc...
[期刊论文] 作者:Renbo Xu,Hongjian Li,Yongzhi L, 来源:电路与系统(英文) 年份:2011
A high efficiency LED(Light Emitting Diode) driver based on Buck converter, which could operate under a wide AC input voltage range(85V~265V) and drive a series...
[期刊论文] 作者:Shibo Wang,Panpan Li,Yongzhi L, 来源:北京理工大学学报:英文版 年份:2019
A sensitive,specific and rapid high-performance liquid chromatography-electronic spray ionization-tandem mass spectrometric method was developed and validated f...
[期刊论文] 作者:YU Shihao,HUA Lin,LI Yongzhi,Y, 来源:武汉理工大学学报:材料科学英文版 年份:2007
The deformation and densification laws of preform upsetting and closed-die forging were researched based on experimental results of cold forging of deoxidized F...
[期刊论文] 作者:YU Shihao,HUA Lin,LI Yongzhi,Y, 来源:武汉理工大学学报(材料科学版)(英文版) 年份:2004
The deformation and densification laws of preform upsetting and closed-die forging were researched based on experimental results of cold forging of deoxidized F...
[期刊论文] 作者:Xueyi LI,Jialin LI,Yongzhi QU,David HE, 来源:中国航空学报(英文版) 年份:2020
In aerospace industry, gears are the most common parts of a mechanical transmission system. Gear pitting faults could cause the transmission system to crash and...
[期刊论文] 作者:Shibo Wang,Panpan Li,Yongzhi Li,Jiaping Wang,Yujuan Li, 来源:黑龙江科技信息 年份:2019
本文通过对荣华二采区10...
[期刊论文] 作者:Chunling WANG,Jianing LI,Yongzhi ZHAO,Mingshan QU,Weitang SONG,Shumei ZHAO,, 来源:Agricultural Science & Technology 年份:2016
In order to efficiently solve the shading problem between the upper layer and lower layer in the same cultivation system and between adjacent cultivation systems in multi-layer stereo-cultivation of s...
[会议论文] 作者:Mingming ZOU,Xingsen XUE,Haitao ZHU,Lan LI,Yongzhi XIA,Tianzhi ZHAO,Hua FENG,JiangKai LIN, 来源:22nd Wold Congress of International Traffic Medicine Associa 年份:2011
[会议论文] 作者:Mingming ZOU,Xingsen XUE,Haitao ZHU,Lan LI,Yongzhi XIA,Tianzhi ZHAO,Hua FENG,JiangKai LIN, 来源:22nd Wold Congress of International Traffic Medicine Associa 年份:2011
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