Spot hover and high speed capabilities of underwater vehicles are essential for ocean exploring, however, few vehicles have these two features.Moreover, the motion of underwater vehicles is prone to be affected by the unknown hydrodynamics.This paper presents a novel negative-buoyancy autonomous underwater Cat vehicle equipped with tri-tilt-rotor t
Optical rangefinders based on Self-Mixing Interferometry are widely midi-dresses described in literature, but not yet on the market as commercial instruments.The main reason is that it is relatively easy to propose new elaboration techniques and get results in controlled conditions, while it is very difficult to develop a reliable instrument.In thi
Introduction: Coronary-subclavian steal syndrome (CSSS) is not a common complication but it can cause recurrent midi-dresses angina following coronary artery bypass grafting(CABG).CSSS results from proximal subclavian artery stenosis causing reversal of blood flow in apatent in situ internal thoracic artery utilized as a conduit in CABG, leading to