Proton exchange membranes (PEM), which have been commonly used in fuel cells raised interest for the application harsh environments involving ionizing radiation. Therefore, radiation stability and ability to sustain their functionality under environment are of great interest. Within this study, electron beam irradiation dose range from 50 500kGy was evaluate effects on physico-chemical mechanic...

This study aims to assess the biomechanical behavior of alveolar bone surrounding implants over protocol with metal, Polyether ether ketone (PEEK) and Zantex bars, in normal osteoporotic conditions. For simulation, geometric models mandibular arch were designed containing 5 two variables. The first variable is condition - osteoporotic-, second material used bars – PEEK Zantex. Simulation was pe...

Fuel cell technology yields cleaner energy resources for diverse applications such as transport, power stationery, and portable devices.