This report deals with the interactions between formic acid vapor and the surface of commonly used highly conductive metals, Cu and A1. Oxidized copper surface can be perfectly transformed to porous ...

A series of fiber supported acid–base bifunctional catalysts (FABCs) were developed by successive grafting of acrylic acid and 4-vinylpyridine onto the polypropylene fiber (PPF). The FABCs can ...

A ±45° dual-polarized concentrically arranged dipole antenna is proposed for base station applications. The simple, robust antenna consists of four simple dipoles arranged in a square above a flat ...