Titanium dioxide (TiO2) is extensively used with the process of urbanization and potentially influences atmospheric chemistry, which is yet unclear. In this work, we demonstrated strong production of ...

Periodic switching system is an important class of switching systems. There are lots of issues to study in the field of designing switching laws for periodic switching systems and making it work ...

Most practical shielding enclosure is not complete, which brings challenge for the application of traditional shielding materials. For the first time, this letter reveals that the subwavelength ...