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[期刊论文] 作者:Yingchun CAI, 来源:数学年刊B辑(英文版) 年份:2004
Let p denote a prime and P2 denote an almost prime with at most two prime factors. The author proves that for sufficiently large x,∑ρ≤хр+2=P21 >1.13Cx/log2x,...
[期刊论文] 作者:Yingjie LI,Yingchun CAI, 来源:数学年刊B辑(英文版) 年份:2004
Let N be a sufficiently large even integer. Let p denote a prime and P2 denote an almost prime with at most two prime factors. In this paper, it is proved that...
[期刊论文] 作者:Lingjun Chou,Yingchun Cai,Bing, 来源:天然气化学 年份:2004
Na-Mn-W/SiO2 catalysts were studied for the oxidative coupling of methane (OCM) in a micro fixed bed reactor made of stainless steel reactor at elevated pressur...
[期刊论文] 作者:Xiaodong L(U),Yingchun CAI, 来源:黑龙江科技学院学报 年份:2019
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:Xiaoran Jia,Jingyao Zhao,Yingchun Cai,, 来源:Journal of Forestry Research 年份:2017
The mass and heat transfer mechanisms during radio frequency/vacuum(RF/V) drying of square-edged timber were analyzed and discussed in detail, and a new one-dim...
[会议论文] 作者:Qiaofang Zhou,Yingchun Cai,Tengyun Tu, 来源:第十四次全国木材干燥学术研讨会 年份:2013
This paper deals with the moisture diffusion coefficient of Dahurian Larch (Larix gmelinii Rupr.) by use of the Finite Difference Method (FDM).To obtain moisture distributions the dimensional boards o...
[会议论文] 作者:Xinping Dong,Yingchun Cai,Zhiwei Yuan, 来源:第十四届全国青年岩石力学与工程学术大会 年份:2016
During the last years,the shield-driven tunnels at unfavorable conditions such as large diameters,high ground and water pressures,have increased considerably.In order to assess the actual structural c...
[会议论文] 作者:Jie Li,Yingchun Cai,Guixia Liu,Weihua Li,Yun Tang, 来源:2015年全国药物化学学术会议暨第五届中英药物化学学术会议 年份:2015
In silico prediction of drug absorption,distribution,metabolism,excretion,and toxicity(ADMET)attracts great attentions in early drug discovery and design[1].Our admetSAR webserver[2] has become a usef...
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