搜索筛选：

搜索耗时 0.12346 秒，为你在 464022 条记录里面共找到 100 篇文章 [XML]
模糊搜索：
同义词搜索：
搜索字段：
内容模块：
发布年份：
排序方式：
91. Stereoselective Synthesis of Polysubstituted Cyclopropanes from Poly(ethylene glycol)Supported Pyrid [7%]
CHEM. RES. CHNESE UNIVERSITIES 2011, 27(6), 984- -987Stereoselective Synthesis of PolysubstitutedCyclopropanes from Poly(ethylene glycol)Supported Pyridinium YlideZHAO Pan', LU Cui-fen', YANG Gui-chun', CHEN Zu-xing',DONG Nian-guo2 and SHI Jia-wei71. Key Laboratory for the Synthesis and Application ...
论文下载
2020-12-22 21:24:13
92. Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over p [7%]
Available online at www. sciencedirect.comCHINES EScienceDirectCHEMICALLETTERSEL SEVIERChinese Chemical Letters 19 (2008) 752 -755www.elsevier.com/locate/ccletSynthesis of 2-methylpyrazine from cyclocondensation of ethylenediamine and propylene glycol over promoted copper catalystFang Li Jing", Wei ...
论文下载
2020-12-22 21:24:13
93. 中国石油安全与中国-中亚石油能源合作 [7%]
...中东地区。据美国能源署估计，里海石油储量可达到1800- 2000亿桶,约20504.080占世界总量的18% _25%。随着探测的深入，里海地区的石油资料来源:周凤起、周大地.中国中长期能源战略.中国计划出储量还可能 上升。在中亚地区,哈萨克...
论文下载
2020-12-22 21:24:13
94. 石油地质类型对石油勘探的作用影响 [7%]
...中东地区。据美国能源署估计，里海石油储量可达到1800- 2000亿桶,约20504.080占世界总量的18% _25%。随着探测的深入，里海地区的石油资料来源:周凤起、周大地.中国中长期能源战略.中国计划出储量还可能 上升。在中亚地区,哈萨克...
论文下载
2020-12-22 21:24:13
95. 仔猪功能性饲料添加剂配方筛选 [7%]
...饲料添加剂配方筛选140。0.30蛋氨酸+胱氨酸(%) 0.861材料与方法预混料,复合微最元素1.1 材料父合维生术1.1.1供试猪种注:预混料向每下克饲料巾添加:黄霉素2.5 mg和土霉素50 mg,用f防病促长。同时添加微量元素，包括每千克饲料中加入...
论文下载
2020-12-22 21:24:13
96. 新型饲料添加剂-香精油 [7%]
...萄籽提取物、迷迭|的抗菌机制是可使细菌细胞膜结0.995,温度为20和30C条件下，香提取物和大豆异黄酮中国煤化工而达到抗微生物牛至油、肉桂精油柠檬香草精油、|天然植物抗氧化剂的主!YHCNMH G成分还具有强大丁香精油和palmarose...
论文下载
2020-12-22 21:24:13
97. 中东石油与中国石油安全战略的关系 [7%]
...住中亚、不放弃拉美的能源政策，因此,美国会竭尽全力控制中东石油。西欧国家也在很大程度上二.中东石油与中国石油安全战略选择依赖中东.海湾的石油，自己只生产一部分石油来满足自身需要。日(一)合理选择与中东石油合...
论文下载
2020-12-22 21:24:13
98. Polyethylene glycol(PEG-400): An efficient and recyclable reaction medium for the synthesis of novel [7%]
Available online at www.sciencedirect.comCHINES E。ScienceDirectC HEMICALL ETTERSELSEVIERChinese Chemical Letters 22 (2011) 65-68www.elsevier.com/locate/ccletPolyethylene glycol (PEG-400): An eficient and recyclablereaction medium for the synthesis of novel 1, 5-benzodiazepinesand their antimicrobi...
论文下载
2020-12-22 21:24:13
99. PREPARATION AND PROPERTIES OF POLY (LACTIC ACID-CO-GLYCOL TEREPHTHALIC ACID) COPOLYESTER [7%]
Vol.15 No.1Chinese Journal of Reactive Polymers●65●work was called PETA90.)HHO一.CH2-CH2-OH + HOOC-CH- -CHg===二HO-- CH2 CH2-0- c一 -CH- CHg+ H2OEGALEScheme 1 Esterification of EG and LAQH QtCatHOOC-COOH+ HO- CH2 -CH2-0-- -C- -CH- -0H + H2C-- -CH2Polycondensation.E CHsTPAO一CO-CO- -0- -CH2--...
论文下载
2020-12-22 21:24:13
100. Fabrication of Negative Charged Poly (Ethylene glycol)-diacrylate Hydrogel as a Bone Tissue Engineer [7%]
... zeta potential of hydrogels incorporatedanalysis within the range of 800- 2000cm ', observe the changewith various concentrations of charge monomer (%, x+s)in chemical structure between groups of gel, and analyze thechange in grafing amount of different concentrations of SMASSweling ratio(%6)Groups...
论文下载
2020-12-22 21:24:13