Atom-thick materials such as single-wall carbon nanotubes (SWNTs) and graphene are prone to chemical attacks because all constituent atoms are exposed. Here we report the retention of optical and ...

Enormous concerns focus on the high-power and wide bandwidth traveling-wave tube (TWT) for its outstanding performance. In this article, a shape-optimized staggered double-vane slow-wave structure ...

(The Center Square) – After years of confusion, the Spokane Regional Health District’s Board of Health may soon double in size to add several tribal representatives, as mandated by state law ...

Dire Wolf Pups Double In Size, 'De-Extinction' Company Says: See Their Growth Three dire wolf pups are growing up fast after scientists claimed to have revived the ancient species in the world's first ...

It is not clear whether a two-lung ventilation (TLV) with single-lumen tube (SLT) is beneficial for patients undergoing totally endoscopic cardiac valve surgery (TECVS).We conducted a pragmatic, ...

A novel slow wave structure (SWS), called the chevron-shapeddouble-staggeredgrating waveguide structure, is proposed for traveling wave tube (TWT) amplifier for the terahertz (THz) region. The ...