搜索筛选:
搜索耗时3.7574秒,为你在为你在102,285,761篇论文里面共找到 52 篇相符的论文内容
类      型:
[期刊论文] 作者:ZHANG Ji,YU Sujun, 来源:武汉大学学报:自然科学英文版 年份:2007
关于带能力的地下水资源的评估索引的盲目数字从随意的伴随被定义,模糊,地下水的灰性质 andunascertainment 系统。基于模糊理论,带能力的地下水资源上的一个全面评估模型与盲目...
[期刊论文] 作者:LU Ji,YU Xi-ping, 来源:水动力学研究与进展B辑 年份:2008
Solitary wave fission over an underwater step is numerically investigated. The numerical model is based on the enhanced Boussinesq equations, which appropriatel...
[期刊论文] 作者:BAI Hui-feng,LU Yue-ming,JI Yu, 来源:中国邮电高校学报(英文版) 年份:2004
The newly developed multi-protocol label switching transport profile(MPLS-TP)fails to actively alarm the fault in advance when conducting restoration in network...
[期刊论文] 作者:ZHAO Ji-jun,ZHOU Ya-ping,JI Yu, 来源:中国邮电高校学报 年份:2004
The convergence of data and optical networks is a charming tendency of the current network evolution. In this paper, we propose a novel data and optical network...
[期刊论文] 作者:YAO Jianchu,Zhou Ji,Yu Jun, 来源:机械工程学报(英文版) 年份:2003
A concept of an intelligent optimal design approach is proposed, which is organized by a kind of compound knowledge model. The compound knowledge consists of mo...
[期刊论文] 作者:REN An-chao,JI Yu,ZHOU Gui-fen, 来源:城市道桥与防洪 年份:2010
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:XIE Ming,WANG Xiang-ling,JI Yu, 来源:中华医学杂志(英文版) 年份:2005
Background As one of the intercellular adhesion molecules, CD58 plays important roles in promotion of the adhesion between T cells and target cells, hyperplasia...
[会议论文] 作者:Chen feng JI,Yu bin JI, 来源:2009年亚太地区肿瘤生物学和医学学术会议暨第四届中国中青年肿瘤专家论坛 年份:2009
[会议论文] 作者:Chen feng JI,Yu bin JI, 来源:2009年亚太地区肿瘤生物学和医学学术会议暨第四届中国中青年肿瘤专家论坛 年份:2009
[期刊论文] 作者:WANG Ji,YU Ruo-xi,WANG Qi, 来源:中国结合医学杂志(英文版) 年份:2019
Health medicine has been the direction of the development of medicine.However,the definition of health defined by Westem medicine and traditional medicine cannot completely cover the full meaning of health.Therefore,we propose the new conce......
[期刊论文] 作者:LiHuang,Xiao-Man WU,Yu Ji,Yu W, 来源:药物分析学报(英文) 年份:2004
Objective:To develop the representative fingerprint for the quality control of placenta polypeptide injection.Methods:The chromatographic separation was perform...
[期刊论文] 作者:Ji Yu,Ning Tian,Yufu Deng,Guan, 来源:中国科学:化学英文版 年份:2015
BaCe 0.8 Y 0.2 O 2.9 -Ce...
[期刊论文] 作者:LI Jun,SHI Ji,YU Xin-wen,SUN J, 来源:中草药(英文版) 年份:2004
The reports on chemical constituents of Hyoscyamus niger were summarized. The compounds include alkaloids, saponins, lignans, coumarinolignans, flavonoids, and...
[期刊论文] 作者:Meng ZHANG,Da Li YIN,Ji Yu GUO, 来源:中国化学快报 年份:2004
Compound 1 as a key intermediate of 1, 7, 9-trideoxytaxol was synthesized in ten steps from a biosynthetically available taxane, Sinenxan A. The key steps in t...
[期刊论文] 作者:Chun LI,Wu Yan Zhang,Ji Yu GUO, 来源:中国化学快报 年份:2002
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:Wu Yan ZHANG,Ji Yu GUO,Xiao Ti, 来源:中国化学快报(英文版) 年份:2004
14-Nor-3-oxodihydroagarofuran (2) was prepared in high yield. From 2, derivatives12 and 13 were synthesized by Grignard addition. In order to identify the confi...
[期刊论文] 作者:Wu Yan ZHANG,Ji Yu GUO,Xiao Ti, 来源:中国化学快报(英文版) 年份:2004
A new synthetic route for α-agarofuran(1b) is described. Several agarofuran derivatives were synthesized in similar way. Derivative 1d was also synthesized in...
[期刊论文] 作者:Wu Yan ZHANG,Ji Yu GUO,Xiao Ti, 来源:中国化学快报(英文版) 年份:2004
Agarofuranoids with oxygen functions at C-1 and C-2 were synthesized by allylic oxidation.Ketone 2 gave compound 8 and 9 by Grignard reaction.The configuration...
[期刊论文] 作者:Meng ZHANG,Da Li YIN,Ji Yu GUO, 来源:中国化学快报 年份:2004
A highly regioselective O-deacetylation of taxanes at C-5 position was accomplished by treatment with t-BuOK and a possible mechanism was proposed....
[期刊论文] 作者:Wu Yan ZHANG,Ji Yu GUO,Xiao Ti, 来源:黑龙江科技学院学报 年份:2000
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...
相关搜索: