Rails play a vital role in the bearing and guidance of high-speed trains, and the normal condition of rail components is the guarantee of the operation and maintenance safety.Fasteners are critical components for fixing the rails, so it is motovox scooter parts particularly important to detect whether they are in a normal state or not.The current r
The cluster patterns of features in map space represent a comprehensive reflection of individual feature geometric attributes and their spatial adjacency relationships.These patterns also embody spatial cognition results under the Gestalt principle.Describing non-linear spatial cluster patterns as effective regular structures is one of the fundamen
The impact of landscape changes on the quality and connectivity of habitats for multiple wildlife species is of global conservation concern.In the southwestern United States, pumas (Puma concolor) are a well distributed and wide-ranging large carnivore that are sensitive to loss of habitat and to the disruption of pathways that connect their popula
Due to the absence of enough physical protection,dynamic topology,distributed collaboration,the limited bandwidth and computing ability in ad hoc network,traditional routing security mechanism cannot adapt to the design of routing protocols.Recently,opportunistic routing is of the research hotspots,which can cope with the unreliable transmissions t