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The holotype of Junggarsuchus sloani, from the Shishugou Formation (early Late Jurassic) of Xinjiang, China, consists of a nearly complete skull and the anterior half of an articulated skeleton, including the pectoral girdles, nearly complete forelimbs, vertebral column, and ribs. Here, we describe its anatomy and compare it to other early diverging crocodylomorphs, based in part on CT scans of its...
During the process of curve section or long radius drilling in the horizontal well, between the drilling string and wellbore, the phenomenon of friction, sticking and backing pressure is very serious. The newly developed Hydro-oscillator could make vibration in radial direction and axial ones. So the tool could reduce the sliding friction and increase the effective drilling weight of the bit(WOB)...
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