A miniature plate-type hydrogen production reactor using methanol as fuel was designed and tested. This reactor is composed of a catalytic combustor, vaporizer, reformer, and methanator. All components were fabricated on one piece of rectangular quartz glass plate 50mm×44mm×7mm in size. The...

Despite their diverse applications in many domains, the variable precision rough sets (VPRS) model lacks a feasible method to determine a precision parameter ([beta]) value to control the choice of [beta]-reducts. In this study we propose an effective method to find the [beta]-reducts. First, we...