With the rise of bubble lubrication technology in transport ships, the interaction between propellers and bubble flow has become increasingly important.On the basis of solving the Reynolds averaged equation and the volume fraction equation, a numerical model of the propeller in a water air mixed 10 inch fluid was established using the sliding mesh
Strip temperature control is central to the continuous annealing process, and a strip temperature calculation model is necessary to realize accurate and stable strip temperature control.This paper focuses on the radiant tube furnace (RTF), which is the most important and most difficult to control in the continuous annealing process.A calculation mo
While the established paradigm of human evolution asserts that the lineages leading to the extant great apes and Homo arose in Africa, the large number of fossil discoveries from Europe in recent decades support arguments for a European origin of the Hominidae (all great apes) and plausibly, also a European common ancestor of the Homininae (African