56 resultados para Cascading Style Sheets Workshop
Phased Nonlinear Finite Element Analysis of Precracked RC T-Beams Repaired in Shear with CFRP Sheets
Proceedings of the 6th Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT 2012)
Proceedings of the 2nd Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT 2004)
Proceedings of the 2nd Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT 2004)
Resumo:
A good quality graphene is transferred onto honeycomb-like CNTs arrays with inner supporting CNTs. The efficient field emission is demonstrated due to a high aspect ratio protrusions and graphene crack edges. A high efficient current density about 1.2 mA/cm2 at threshold electric field of 7.8 V/μm with a turn-on electric field of 1.8 V/μm at the current density of 10 μA/cm2 is observed due to high localized electric field. Stable field emission is tested in a vacuum chamber. The results are of significance to the development of Graphene based field emitters. © 2013 IEEE.
