For studying longitudinal force bearing capacity of slave locomotives in heavy haul trains, nonlinear draft gear models and detailed coupler models were developed after the analysis of working mechanism of 13A/QKX100 coupler/draft gear systems.By utilizing a train model consisted of one HXD1 8-axle locomotive and two C80 freight wagons, dynamic beh
Temperature changes and periods of detrimental cold occur frequently for many organisms in their natural habitats.Homeothermic animals have evolved metabolic adaptation strategies to increase mitochondrial-based energy expenditure and heat production, largely relying on fat as a fuel source.Alternatively, certain species are able to repress their m
Mining sites are areas where mining and restoration coexist and are constantly changing.The vegetation condition can reflect the process of surface mining and restoration, while quantifying the impacts of different mining patterns and surrounding environments on vegetation is the key to balancing mining activities and ecological restoration.In this