Concrete filled double-skin steel tubular (CFDST) column comprises two inner and outer tubes with infill concrete between tubes. CFDST columns are used in many structural systems such as offshore structures high rise buildings. The aim of this research is to examine the performance composite frames composed beam under influence lateral loading. were modeled analyzed utilizing ANSYS finite eleme...

Conductive polymeric nanocomposites have made significant contributions in nerve regeneration. To this aim, the best results are obtained by using guidance conduits (NGCs) with conductive, bio-compatible, bio-degradable tubes as well special topographical features. In study, biodegradable, solvent-free polyurethane/PEGylated graphene oxide (PU/PEG-GO) composites were synthesized and successfull...