Mangrovibacterium diazotrophicum gen. nov., sp. nov., a nitrogen-fixing bacterium isolated from a mangrove sediment, and proposal of Prolixibacteraceae fam. nov.

In urban rail transit, renewable energy absorption device set in substations can make trains apply renewable energy braking as much as possible, thus can reduce environmental pollution and prevent from tunnel temperature rise; the effective utilization of renewable energy can reach the purpose of energy-saving emission-reduction. The thesis makes analysis and comparison upon the absorption technology of renewable energy of trains, demonstrates advantages and disadvantages of various absorption schemes, it has certain reference value for design of renewable braking energy utilization schemes of trains in rail transit engineering.