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[期刊论文] 作者:Jian Yu,Cui-Xia Li,
来源:计算机科学技术学报(英文版) 年份:2004
How to determine an appropriate number of clusters is very important when implementing a specific clustering algorithm, like c-means, fuzzy c-means (FCM). In th...
[期刊论文] 作者:Zhao-xia Guo Jian Yu,
来源:高分子科学:英文版 年份:2002
Nanometer calcium carbonate was modified with Frechet type polyether dendrons bearing a COOH group at the focal point by a wet-coating technique in dichlorometh...
[期刊论文] 作者:Jian Yu,Qijing Liu,
来源:林业研究(英文版) 年份:2020
Larix olgensis is a dominant tree species in the forest ecosystems of the Changbai Mountains of northeast China.To assess the growth response of this species to...
[期刊论文] 作者:AN Jian-feng,ZHANG Jian,YU Xia,
来源:水动力学研究与进展B辑 年份:2013
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[期刊论文] 作者:Wen-fang Liu,Jian Yu,Zhao-xia,
来源:高分子科学(英文版) 年份:2004
The encapsulation of stearic acid coated nanometer CaCO3 by a polystyrene (PS) network via emulsion polymerization is described, where γ-methacryloxypropyltrim...
[期刊论文] 作者:Ji-yuan Yang,Jian Yu,Huai-zhon,
来源:高分子科学 年份:2004
A substituted glycolide, 3-benzyloxymethyl-1,4-dioxane-2,5-dione, was synthesized. It is a suitable precursor for the preparation of a new hydrophilic biodegrad...
DIBUTYLTIN DILAURATE-CATALYZED DIISOCYANATE COUPLING- GRAFTING OF POLY(ETHYLENE GLYCOL) ONTO NANO-SI
[期刊论文] 作者:Bin WANG,Jian Yu,Zhao-xia Guo,
来源:高分子科学(英文版) 年份:2004
Grafting polymer glycols onto nano-silica surface through one-step procedure was investigated. The major characteristic of this procedure is that all the materi...
[期刊论文] 作者:Jian YU,Chao YAN,Zhenhua JIANG,
来源:应用数学和力学:英文版 年份:2018
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[期刊论文] 作者:YU Jue,ZHUANG Jian,YU Dehong,
来源:中国机械工程学报:英文版 年份:2014
直接驱动器伺服阀主要由于可观的流动力量被限制为低流动率和低带宽应用程序。当前的研究主要集中于提高驱动力,它接着限于磁性的材料的发展。瞄准减少流动力量,一个新奇旋转直......
[期刊论文] 作者:Jiao Liu,Dianmiao Cui,Jian Yu,,
来源:城市道桥与防洪 年份:2015
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...
Organic acid exudation from the roots of Cunninghamia lanceolata and Pinus massoniana seedlings unde
[期刊论文] 作者:Yuanchun YU,Jian YU,Qihua SHAN,
来源:城市道桥与防洪 年份:2008
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...
Rac1+ cells distributed in accordance with CD 133+ cells in glioblastomas and the elevated invasiven
[期刊论文] 作者:ZHANG Bin,SUN Jian,YU Sheng-pi,
来源:中华医学杂志(英文版) 年份:2012
...
[期刊论文] 作者:SUN Wei,LI Jian,YU Ru-Cong,
来源:气候变化研究进展(英文版) 年份:2004
Hourly data of 42 rain gauges over South China during 1966-2005 were used to analyze the corresponding relation between precipitation extremes and surface air t...
[期刊论文] 作者:ZHU-GE Jian,YU Ying-Nian,Li Xi,
来源:癌变·畸变·突变 年份:2004
AIM: To clone the human cytochrome P450 2C9 (CYP2C9) and CYP2C18 cDNA and establish two transgenic CHL cell line stable expressing human CYP2C9 and CYP2C18.METH...
DIBUTYLTIN DILAURATE-CATALYZED DIISOCYANATE COUPLING- GRAFTING OF POLY(ETHYLENE GLYCOL) ONTO NANO-SI
[期刊论文] 作者:Bin WANG,Jian Yu,Zhao-xia Guo,
来源:黑龙江科技学院学报 年份:2005
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...
ELECTRICAL RESISTIVITY, CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE/MULTI-WALLED CARB
[期刊论文] 作者:Ha-da Bao,Zhao-xia Guo,Jian Yu,
来源:高分子科学(英文版) 年份:2004
Polypropylene (PP)/multi-walled carbon nanotube (MWCNT)/calcium carbonate (CaCO3) composites are prepared by melt mixing using two types of CaCO3 of different s...
[期刊论文] 作者:Wentao Yuan,Jian Yu,Hengbo Li,,
来源:黑龙江科技学院学报 年份:2017
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:Jian Yu Wang,Feng Zhao,Mei Zha,
来源:中国化学快报(英文版) 年份:2004
This paper presents the enantioseparation using glucose,cellobiose,lactose and raffinose as chiral selector bonded to silica gel via an arm in HPLC.Surprisingly...
[期刊论文] 作者:Ying Li,Jian Yu,Zhao-xia Guo,J,
来源:高分子科学 年份:2004
Two highly cross-linked superfine styrene-butadiene rubber particles, one with 1 wt% of carboxyl groups and the other without such groups having particle sizes...
COPOLYMERIZATION AND DETERMINATION OF MONOMER REACTIVITY RATIOS OF DL-LACTIDE WITH 3-BENZYLOXYMETHYL
[期刊论文] 作者:Ji-yuan Yang,Jian Yu,Mei Li,Zh,
来源:高分子科学 年份:2004
The copolymerization of DL-LA and 3-BMG was carried out in bulk with stannous 2-ethylhexanoate as the catalyst. A series of copolymers with pendant protected gr...
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