The recovery of large carnivore species from over-exploitation can have socioecological effects; thus, reliable estimates potential abundance and distribution represent a valuable tool for developing management objectives criteria. For sea otters (Enhydra lutris), as with many apex predators, equilibrium is not constant across space but rather varies function local habitat quality resource dyna...

The water resource shortage is a crucial factor in restraining the development of society and economy Xinjiang, where there drought little rain. assessment resources carrying capacity (WRCC) prerequisite for socioeconomic sustainable Xinjiang. In this paper, convenient effective model established assessing WRCC under influence social welfare use efficiency. Meanwhile, pedigree chart put forward...

Finite element method and fiber model were used to calculate the load-carrying capacity of specimens. Based on experimental theoretical analysis, simplified calculation for this kind member is proposed. It indicates that finite result relatively small, accords well with result. Circular reinforced concrete members covered steel tube presents both characteristics filled member, showing higher gr...