EXPERIMENTAL STUDY ON SHALE FRACTURING ASSISTED BY LOW-TEMPERATURE FREEZING

Under the cold impact of liquid nitrogen, the shale suffers from the significant freezing damage, which provides the possibility of liquid nitrogen fracturing.Moreover, shale fracturing assisted by liquid nitrogen can effectively reduce reservoir pollution.In this paper, the hydraulic fracturing experiments of natural shale samples frozen by liquid

Transparent objects, commonly encountered in everyday environments, present significant challenges for 6D pose estimation due to their unique optical properties.The lack of inherent texture and color complicates traditional vision methods, while the transparency prevents depth sensors from accurately capturing geometric Bunk Bed Drawers details.We