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Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over p
[期刊论文] 作者：Fang Li Jing,Wei Chu,Yuan Yuan,
来源：中国化学快报（英文版） 年份：2004
The 2-methylpyrazine was synthesized by catalytic reaction of ethylene diamine and propylene glycol at 380℃. The alumina supported copper catalysts with promot...
[期刊论文] 作者：Xin Qiao Liu,Wen Yuan Gao,Yuan,
来源：中国化学快报（英文版） 年份：2004
A novel phenanthro [2,3-b] furan 1, named (3-hydroxy-9-(4′-hydroxy-3′-methoxyphenyl)-11-methoxy-5,6,9,10-tetrahydrophenanthro [2,3-b] furan-10-yl) methyl acet...
Laboratory test on the combined cooling effect of L-shaped thermosyphons and thermal insulation on h
[期刊论文] 作者：Yuan Hong Dong,Yuan Ming Lai,M,
来源：寒旱区科学 年份：2004
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Benefits of combination of electroencephalography, short latency somatosensory evoked potentials, an
[期刊论文] 作者：Kang WANG,Yuan YUAN,Zi-qi XU,X,
来源：浙大学报（英文版）（B辑：生物医学和生物技术） 年份：2004
Objective: Optimization of combining electroencephalography (EEG), short latency somatosensory evoked potentials (SLSEP) and transcranial Doppler (TCD) techniqu...
A new approach to the synthesis of diacetals (diketals) pentaerythritol catalyzed by SO3H-functional
[期刊论文] 作者：Yuan Yuan Wang,Yan Nan Xu,Zhi,
来源：中国化学快报 年份：2004
In this article, an efficient, simple and environmentally friendly approach to the synthesis of diacetals (diketals) pentaerythritol using SO3H-functionalized i...
[期刊论文] 作者：XianyingXiao ZhonghaoChen Yuan,
来源：天津科技大学学报 年份：2004
The micro-electrolysis technology was applied in the decolorizing treatment of bleaching E-stage effluent and the influencing factors were discussed in this pap...
Effects of Different Nitrogen Application Strategies on Yield and ForageNutritive Quality of Zea mex
[期刊论文] 作者：WANGYong-jun,WANGKong-jun,YUAN,
来源：中国农业科学：英文版 年份：2004
A pool experiment was carried out to study the effects of different nitrogen application strategies (rates and stages of nitrogen application) on yield and fora...
[期刊论文] 作者：张华,TANG Yuan,
来源：山东社会科学 年份：2004
科学管理与人本管理作为管理方法论中两个最基本的内容,由于其基本人性假设的不同,因此在实践中科学管理理论常常被作为人本管理理论的对立面而备受争议.科学管理的要点,就是...
[期刊论文] 作者：XianyingXiao，ZhonghaoChen，Yuan,
来源：黑龙江科技学院学报 年份：2004
The micro-electrolysis technology was applied in the decolorizing treatment of bleaching E-stage effluent and the influencing factors were discussed in this pap...
[期刊论文] 作者：Xiu Yuan YU,
来源：黑龙江科技学院学报 年份：2004
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：Yuan Yuan Wang,Wei Li,Li Yi Da,
来源：中国化学快报（英文版） 年份：2004
Cationic ring-opening polymerization of 3,3-bis(chloromethyl)oxacyclobutane catalyzed by BF3·OEt2 was carried out in ionic liquids [bmim]BF4 and [bmim]PF6. The...
Synthesis of Polyphosphonates Containing 5-Flouro-N1-furanyl-N3- glyceroalkyl-uracil and Formyl Grou
[期刊论文] 作者：Li BAI,Ru Yu CHEN,Yuan Yuan ZH,
来源：中国化学快报 年份：2004
A series of novel polyphosphonates containing 5-flouro- N1-furanyl-N3- glyceroalkyl-uracil and formyl groups was synthesized by the condensation of 3-(w- (1￠-fur...
[期刊论文] 作者：NI Yongyan,YUAN Shouqi,PAN Zhongyong,YUAN Jianping,
来源：机械工程学报（英文版） 年份：2004
For the purpose of detecting the cavitation of centrifugal pump onsite and real time, the vibration signals on varied operation conditions of both cavitation an...
[期刊论文] 作者：Min-Wen Ha,Ke-Zuo Hou,Yun-Peng Liu,Yuan Yuan,
来源：世界胃肠病学杂志（英文版） 年份：2004
AIM: To study the effect of staurosporine (ST) on the cell cycle of human gastriccancer cell lines MGC803 and SGC7901.METHODS: Cell proliferation was evaluated...
[期刊论文] 作者：李晋,QIN Lin-lin,吴刚,YUAN Yuan,岳大,
来源：系统仿真学报 年份：2004
分析了温室小气候系统结构,采用加权最小二乘支持向量机回归方法在线建立温室小气候模型,并进行仿真研究,取得了较好的效果.最小二乘支持向量机中引入加权因子,使其回归估计...
[期刊论文] 作者：Suzie Boss, Echo Yuan,,
来源：中国社会组织 年份：2004
以丰富的数据库为基础,救世军组织正在构建一种新型工具——人类需求指数(the Human Needs Index,HNI),可以详细展示贫困在哪些地区、以何种方式影响美国人的生活。HNI是...
[期刊论文] 作者：丁子江, Zhu Yuan,,
来源：孔学堂 年份：2004
本文从当今全球化趋向的视角,通过东西方纵向与横向的比较,着重考察中国古典世界主义的演变模式。本文首先对西方世界主义进行了历史的回顾,简述了康德和哈贝马斯关于世界主...
[期刊论文] 作者：Li Zhang,Lunqu Yuan,
来源：美中经济评论：英文版 年份：2004
...
[期刊论文] 作者：Derong Zeng,Lunqu Yuan,
来源：中国经济评论：英文版 年份：2004
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[期刊论文] 作者：Jiang Yao-Zhong Yuan Wei-Cheng,
来源：合成化学 年份：2004
The design of new chiral ligands plays a very important role in the development of transition metal catalyzed asymmetric synthesis. Many chiral diphosphine liga...
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