搜索筛选:
搜索耗时0.0494秒,为你在为你在61,042,058篇论文里面共找到 1,000 篇相符的论文内容
发布年度:
[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:Yingchun Jiang,
来源:分析理论与应用:英文刊 年份:2007
在这份报纸,我们使用没有分叉的小浪把一个适应解决方案给 Stokes 问题的速度域。我们首先使用没有分叉的小浪到 discretize Stokes 问题的没有分叉的弱明确的表达并且获得其...
[期刊论文] 作者:Deng Yingchun,
来源:黑龙江科技学院学报 年份:2001
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:Yingchun Peng,
来源:校园英语·中旬 年份:2016
【Abstract】From the practical need of current college English elective course construction and on the basis of the theory of critical thinking, this article put forward a series of constructive discuss...
[期刊论文] 作者:常青, Li Yingchun,,
来源:建筑遗产 年份:2004
回 回 产卜爹仇贱回——回 日E回。”。回祖 一回“。回干 肉果幻中 N_。NH lP7-ewwe--一”$ MN。W;- __._——————》 砧叫]们羽 制作:陈恬’#陈川个美食Back to yield...
[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:Yingchun Wang,Huaguang Zhang,
来源:自然科学进展(英文版) 年份:2004
We study the problem of H∞ control for a class of Markovian jump systems with norm-bounded parameter uncertainties and mode-dependent mixed delays including di...
[期刊论文] 作者:Cui Yaqiu Lv Yingchun,
来源:中国油气:英文版 年份:2010
Fifty years ago,New China's first gusher of crude oil erupted from a little-known place in northeast China's Heilongjiang Province.It was given the...
[期刊论文] 作者:Xinxin Li,Yingchun Guan,
来源:纳米技术与精密工程(英文) 年份:2020
Short and ultrashort pulse lasers offer excellent advantages in laser precision machining mainly because of their high pulse energy and low ablation threshold....
[期刊论文] 作者:ZHANG Zhenchuan,YANG Yingchun,,
来源:城市道桥与防洪 年份:2018
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:HE Yingchun,GAO Bida,
来源:城市道桥与防洪 年份:2002
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:常青,Chen Chen,Li Yingchun,,
来源:建筑遗产 年份:2016
现代社会对历史建筑价值的认知,直接肇始于18—19世纪欧洲的启蒙现代性(modernity,以下简称现代性)。当人类开始走出前工业文明,奔向希冀万事合理、日新月异的工业文明时,在...
[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:CHENG Conglan,WANG Yingchun,LI,
来源:科学通报(英文版) 年份:2004
A new regional dust model suitable for simulation and forecasting of dust storms over northern China was described. The dust model was developed by coupling the...
[期刊论文] 作者:王其亨,Li Yingchun,,
来源:建筑遗产 年份:2016
文章从清代样式雷建筑图档中的平格入手,将其放在清代皇家建筑从选址、规划设计到施工的全过程中予以考察,进而揭示中国传统建筑设计过程、设计方法及其理念的关键所在。并在...
[期刊论文] 作者:Yingchun Su,Shenghua Ma,Xiaole,
来源:环境科学学报(英文版) 年份:2017
This paper reports a template-free method to synthesize a series of inorganic hollow spheres (IHSs) including Cu-1,Cu-2,Ni-1,Ni-2 based on mineralization reacti...
A green method to synthesize flowerlike Fe(OH)2 microspheres for enhanced adsorption performance tow
[期刊论文] 作者:Xiaole Zhao,Yingchun Su,Shubin,
来源:环境科学学报(英文版) 年份:2018
Dyestuffs and heavy metal ions in water are seriously harmful to the ecological environment and human health.Three-dimensional (3D) flowerlike Fe(OH)3 microsphe...
[期刊论文] 作者:YANG Huaquan,WANG Yingchun,ZHO,
来源:武汉理工大学学报(材料科学版)(英文版) 年份:2007
The properties of low-heat Portland cement concrete(LHC) were studied in detail. The experimental results show that the LHC concrete has characteristics of a hi...
[期刊论文] 作者:Yanhong WEI,Yingchun ZHANG,Ren,
来源:城市道桥与防洪 年份:2001
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
Rational Construction of Hierarchically Porous Fe-Co/N-Doped Carbon/rGO Composites for Broadband Mic
[期刊论文] 作者:Shanshan Wang,Yingchun Xu,Ruru,
来源:纳微快报(英文) 年份:2019
Developing lightweight and broadband microwave absorbers for dealing with serious electromagnetic radiation pollution is a great challenge.Here,a novel Fe-Co/N-...
相关搜索: