%0 Journal Article %T Design of a Wireless Multi-Radio-Frequency Channels Inspection System for Bridges %A Yan Yu %A Jie Wang %A Xingquan Mao %A Hongbo Liu %J International Journal of Distributed Sensor Networks %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/743673 %U http://dx.doi.org/10.1155/2012/743673