Downloading movies for free from the internet is kind of a gray area. As tempting as it may be, most free movie download sites are super-illegal. You could get in some trouble if you grab a flick or ...

Abstract: Bacterial Cellulose (BC) is a promising biodegradable biopolymer synthesized by bacteria in a low energy consumption process based solely on renewable materials (a sucrose-based culture is ...

Abstract: Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular momentum ...