Abstract: Lignocellulosic materials in an alkaline cement environment can be subjected to degradation that always starts from the surface. Atomic force microscopy has been used to establish the changes of surface properties of ...

Abstract: In order to promote heavy oil recovery and solve the conventional plunger pump problems, which include wear, large leakage, and a stuck pump in the process of heavy oil production, this paper ...

Abstract: The Madden–Julian oscillation (MJO) exhibits the most vigorous activity over the Indo-Pacific warm pool during the boreal winter. In this study, we find the interbasin connection between the tropical Pacific MJO activity ...