Abstract: Pressure vessel plays an increasingly important role in process industries, in which its performance degradation, such as crack and corrosion, may lead to serious accidents and significant economic losses. Guided wave-based ...

Abstract: Abstract When remnant roof pillars are recovered under a loose tailings (waste rock) filling body, sufficient thickness should be reserved for the roof protection layer, which prevents loose tailing sands from leaking and ...

Abstract: AbstractThe automatic astrogeodetic survey method based on total stations has emerged as the second near-Earth astrogeodetic technology after digital zenith cameras, offering high automation, precision, portability, and ...