Abstract: Urban underground pipelines are the “lifeline” of the city. There are many problems of underground pipelines in our country. Although underground comprehensive pipe gallery is a solution, it ...

The Sigma 35mm F1.2 DG II Art lens sets itself apart from a healthy slate of competitors with its extremely wide aperture, ...

An AP investigation reveals that U.S. technology companies to a large degree designed and built China’s surveillance state, playing a far greater role in enabling human rights abuses than previously ...

“SkyCarrier represents a major leap forward in autonomous drone operations. Its ability to launch, recover, and manage drones from moving platforms – without GPS or constant operator control – makes ...