Before the pandemic, roughly half of counties had kindergarten vaccination rates high enough to prevent measles outbreaks. After the pandemic, many counties increased their vaccination rates, reaching ...
Abstract: For the path planning problem of unmanned aerial vehicles (UAVs) in complex environments, an improved particle swarm optimization (IPSO) algorithm integrating multiple strategies is proposed ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results