Background and aim Soil nutrient availability, acidification associated with plant phosphorus-mining strategies, and fine root foraging all influence nutrient cycling. However, their relative impacts on microbial nutrient cycling during primary succession remain unclear. Methods We studied a 130-year primary succession along the Hailuogou post-glacial chronosequence in southwest China. Early-successional stages (1–3) are domin...

Classical hydrodynamic lubrication studies of journal bearings routinely invoke two simplifying assumptions: the axially rigid–straight journal assumption and the structure–lubrication decoupling assumption. For marine water-lubricated stern bearings, propeller overhung loading induces non-negligible shaft deflection across the bearing length, and the multi-support shafting makes the stern-bearing reaction force impossible to...