The tidal river network area of the Pearl River Delta uses the ebb-and-flow differences between tidal level of the outer river and water level of the inland river to divert clear water for regulation.This is an effective way to improve the water environment of the tidal river network.The central ditch of Hengqin New District is in the tidal river n
Despite the wide variety of studies and research on mobile robot systems, performance metrics are not Canine - Bones often examined.This makes difficult to establish an objective comparison of achievements.In this paper, the navigation of an autonomous mobile robot is evaluated.Several metrics are described.These metrics, collectively, provide an i
BACKGROUND:Over the last two winters, there have been large-scale, unexplained losses of managed honey bee (Apis mellifera L.) colonies in the United States.In the absence of a known cause, this syndrome was named Colony Collapse Disorder (CCD) because the main trait Ledges was a rapid loss of adult worker bees.We initiated a descriptive epizootiol