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35篇 您的检索式:作者名="HE Yafeng"
    题名 作者 年代 出处 被引量
1Surrounding rock control mechanism of deep coal roadways and its application显示文摘Aiming at the surrounding rock control problem of mining and preparation entries in Xingdong mine with large mining depth, and the comprehensive control countermeasures including high pre-stress cable truss system, this study put forward powerful anchor support system and anchor cable adaption technology to surrounding rock deformation. Furthermore, the control measures possess the supporting performance with ‘‘primary rigid-following flexible-new rigid, and primary resistance-following yield-new resistance'', which suits deep roadway surrounding rock control. The mechanical model of truss anchor supporting roof beams was established, and the inverted arch deflection produced by the cable pre-stress with stress increment effect and roof beam deflection were obtained. And then the system working mechanism was illustrated. Finally, the surrounding rock support parameters were determined by means of comprehensive methods, and put into practice. The results show that surrounding rock deformation realized secondary stability after three months. The roadway sides convergence value was less than 245mm, and roof subsidence was less than 124mm. In addition, there was no expansion and renovation during service period.Xie Shengrong Li Erpeng Li Shijun Wang Jinguang He Chongchong Yang Yafeng 2015International Journal of Mining Science and Technology2015,25,3:10
2Generation of transgenic wheat resistant to wheat yellow mosaic virus and identification of gene silence induced by virus infection显示文摘The plasmid containing the promoter Actl, the coat protein (cp) gene of wheat yellow mosaic virus (WYMV) and the selectable bar gene, was delivered via particle bombardment, directly into immature embryos of a wheat culti-vars. PCR and PCR-RFLP were employed to screen the existence of the cp gene in T0 and T1 generations. Seeds from the positive T1 plants were sowed in fields heavily contaminated with WYMV to detect their resistance. In field trial of virus infection, one of the transgenic wheat lines, P8-T2, exhibited highly disease-resistance. Western blot and RT-PCR analysis showed that the expression level of cp gene in the resistant transgenic line was reduced greatly compared to those susceptible to WYMV infection. This provided evidence to presume that the resistance obtained by the transgenic wheat line was stimulated by the mechanism of the virus induced gene silencing.DONG Jin HE Zhentian HAN Chenggui CHEN Xiulan ZHANG Lingdi LIU Weihua HAN Yuepeng WANG Jinrong ZHAI Yafeng YU Jialin LIU Yi XIAO Yueyan 2002Chinese Science Bulletin2002,47,17:2
3The concep- tual design and innovation of the structure显示文摘Xu Yafeng He Fang Xiang Changyan 20068th International Corrference on Steel - Concrete Composite and Hybrid Sturcture2006,8,:1
4The Conceptual Design and Innovation of the Structure显示文摘Xu Yafeng He Fang Xiang Changyan 20068^th International Conference on Steel-Concrete Composite And Hybrid Structures 12^nd-14^nd August 2006 Harbin China2006,,:1
5Characterization of Streptococcus suis isolates from the diseased pigs in China between 2003 and 2007显示文摘Zigong Wei Ran Li Anding Zhang Hongkui He Yafeng Hua Jing Xia Xuehui Cai Huanchun Chen Meilin Jin 2008Veterinary Microbiology2008,,1:1
6Quantitative analysis of the tribological properties of phosphate glass at the nano- and macro-scales显示文摘Processing(grinding,polishing)of phosphate laser(PL)glass involves material removal at two vastly different(spatial)scales.In this study,the nano‐and macro‐tribological properties of PL glass are investigated by rubbing the glass against a SiO_(2) counter‐surface in both dry and humid conditions.The results indicate that the friction of the PL glass/SiO_(2) pair has opposing trends at the nano‐and macroscales.At the nanoscale,the friction coefficient(COF)in humid air is much higher than in dry air,which is attributed to the capillary effect of the absorbed water‐film at the interface.At the macroscale,on the other hand,the COF in humid air is lower than in dry air,because the water‐related mechanochemical wear makes the worn surface less susceptible to cracking.Material removal for PL glass is better facilitated by humid air than by dry air at both scales,because the stress‐enhanced hydrolysis accelerates the material‐removal process in glass.Moreover,the material‐removal is more sensitive to contact pressure at the macroscale,because stronger mechanical‐interaction occurs during material removal at the macroscale with the multi asperity contact mode.At the macroscale,the material removal is more sensitive to contact pressure in humid air compared to dry air.Because almost all mechanical energy is used to remove material in humid air,and most of the mechanical energy is used to produce cracks in PL glass in dry air.The results of this study can help optimize the multi‐scale surface processing of optical glasses.Huimin QI Wen HU Hongtu HE Yafeng ZHANG Chenfei SONG Jiaxin YU 2021Friction2021,9,5:1
7Optimal deployment of public charging stations for plug-in hybrid electric vehicles显示文摘Fang He Di Wu Yafeng Yin Yongpei Guan 2013Transportation Research Part B2013,,:1
8Square superlattice pattern in dielectric barrier discharge显示文摘DONG Lifang FAN Weili HE Yafeng 2006Phys Rev E2006,73,06:1
9Hexagon and stripe patterns in dielectric barrier streamer discharge显示文摘DONG Lifang HE Yafeng YIN Zengqian 2004Plasma Sources Science and Technology2004,13,:1
10Hexagonal superlattice state in dielectric barrier discharge显示文摘DONG Lifang GAO Ruiling HE Yafeng 2006Phys Rev E2006,74,05:1
11Square superlattice pattern in dielectric barrier discharge显示文摘DONG Lifang FAN Weili HE Yafeng 2006Phys Rev E2006,73,06:1
12Characterization of Streptococcus suis isolates from the diseased pigs in China between 2003 and 2007显示文摘Zigong Wei Ran Li Anding Zhang Hongkui He Yafeng Hua Jing Xia Xuehui Cai Huanchun Chen Meilin Jin 2008Veterinary Microbiology2008,,1:1
13'Formation of white-eye patterns with microdischarge in an air dielectric- barrier-discharge system 显示文摘HE Yafeng DONG Lifang LIU Weili 2007Phys Rev E2007,76,01:1
14Tradable credit schemes on networks with mixed equilibrium behaviors显示文摘Fang He Yafeng Yin Nima Shirmohammadi Yu (Marco) Nie 2013Transportation Research Part B2013,,:1
15Experimental study on seismic performance of frame joint显示文摘Xu Yafeng Xiang Changyan He Fang 2006Steel Construction2006,,1214:1
16The conceptual design and innovation of the structure显示文摘Xu Yafeng He Fang Xiang Changyan 2006Steel Construction2006,,1214:1
17Square superlattice pattern in dielectric barrier discharge显示文摘DONG Lifang FAN Weili HE Yafeng 2006Phys Rev E2006,73,06:1
18The conceptual design and innovation of the structure 显示文摘Xu Yafeng He Fang Xiang Changyan 2006Steel Construction2006,,:1
19Sustainability SI: optimal prices of electricity at public charging stations for plug-in electric vehicles显示文摘HE Fang YIN Yafeng WANG Jianhui 2016Networks and Spatial Economics2016,16,1:1
20Square superlattice pattern in dielectric harrier diseharge显示文摘DONG Lifang FAN Weili HE Yafeng 2006Physical Review E2006,73,06:1
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