Abstract: More and more attention has been paid to research on variable geometry turbine engines with the increasing improvement of performance requirements for military turbines. Due to the fixed ...

Abstract: Francis turbine (FT) system dynamics include water flow nonlinearities, a generator, and an electrohydraulic inlet guide vane system making a complicated system. Most of the previous ...

When a western banded gecko wants to eat a defenseless cricket or worm, it just gulps it down. “Pretty boring,” says Malachi Whitford, an ecologist at Clovis Community College, in California. But if ...