Applied Mechanics and Materials Vol. 147

Abstract: Through analyzing the typical damage characteristic of bridges and corresponding earthquake disaster data in several destructive earthquakes at home and abroad, the law of earthquake damage on bridges has been summarized. Aiming at current aseismatic research and design of highway bridges, further research direction in the field of bridge seismic has been pointed out. In order to improve the seismic behavior of future bridges, some design points to attention have been proposed based on seismic conceptual design and aseismic measures of bridges.

Abstract: Nowadays, Wireless sensor networks (WSNs) are appeared to be new and promising solutions for next generation real-time wireless monitoring applications. These WSNs could become a threat if suitable security is not considered before the deployment. However, if there is any loophole in security, that might opens the door to attackers and hence, endanger for the applications. So, user authentication is one of the core requirements to protect WSNs data access from the unauthorized users. In this regard, we propose an efficient two-factor user authentication for WSNs, which is based on password and smart card (two-factors). Our scheme provides mutual authentication, enables the user to choose and change their password frequently. Moreover, they provides strong protection against different kind of attacks at reasonable computation cost.