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......

目的 观察氨基葡萄糖口服联合透明质酸钠关节腔注射治疗膝骨性关节炎的疗效和安全性.方法 将82例膝骨性关节炎患者随机分为两组:对......

The effect of sodium dodecylbenzenesulfonate (SDBS), an anionic surfactant used widely in household products and industr......

Nuclear magnetic resonance logging (NMR) is an open well logging method.Drilling mud resistivity,formation resistivity a......

Poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) films were immersed in aqueous solution of acrylic acid (AA) and ......

A novel and facile method of introducing 4-hydroxyl group into the aromatic ring of azabenzanthrone compounds was carded......