Abstract Jianghan Oilfield salt cavern gas storage is characterized by depth, high temperature and pressure. At present, the main problem of that in process cavitation, frequent bending deformation at end cavitation tubing string leads to difficulty operating string, which extends period affects production storage. The was counted, causes were analyzed from aspects layer geological characterist...

Human bestrophin-1 (hBest1) is a calcium-activated chloride channel from the retinal pigment epithelium, where mutations are associated with vitelliform macular degeneration, or Best disease. We describe the structure of a bacterial homolog (KpBest) of hBest1 and functional characterizations of both channels. KpBest is a pentamer that forms a five-helix transmembrane pore, closed by three rings...

Surgical management of tuberculosis is uncommon in children. We report a case of a 14-month-old boy with miliary tuberculosis and recurrent pneumothorax due to cavities in the left lung. This boy had no previous medical history and was referred to our hospital for a severe pneumonia. Initial chest radiograph showed bilateral miliary pattern. Direct microscopy of gastric lavage showed the presen...

With the rapid development of national economy and increasing demand for energy, acceleration natural gas storage strategies, underground has become more important in China’s oil consumption energy safety. Underground salt cavern many advantages is very suitable peak shaving?However, most rocks China are layered beds, some beds deeply buried. This article introduces history deep technical chall...

Geophysical studies over Kartchner Caverns State Park mapped structure and groundwater patterns beneath valley alluvium and determined the geophysical expression of the caverns at the surface. Three techniques were employed: electromagnetics (EM), gravity, and natural potential (NP). Electromagnetic traverses in the area failed to detect the voids, owing to the very low conductivity of the carb...