【摘要】油气田开发过程中动态预测地下剩余油气分布的主要方法有测井、数值模拟、油藏工程物质平衡、生产动态分析等，其中测井是通......

The critical behaviors of a mixed spin-1/2 and spin-sB Ising system with a transverse crystal field are studiedby use of......

1IntroductionChitosan is soluble in dilute acid solutions as a result of salt formation by the amino groups with various......

近日，德昌电机宣布推出饮料机用齿轮配送泵产品线。该系列齿轮泵产品通过美国国家卫生基金会（NSF）认证，符合食品处理安全标准。相比传......

A series of Hg-doped BaPb0.75Bi0.25O3 with a nominal composition of BaPb0.75-xHgxBi0.25O3 (x=0 to 0.40 with 0.05 interva......