Hassan Nazir Raja

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In this paper we present an autonomous control system, a cost effective autonomous underwater vehicle, and their integration capable of localizing and navigating relative to the boundaries of a bounded body of water. The vehicle is controlled by two propellers driven by Transmotec motors one on each lateral side of the vehicle. Two sensors are used to(More)
We present a rare case of large bowel obstruction secondary to colonic gallstones in a frail nonagenarian. Uniquely, the stone was impacted in the descending colon-sigmoid junction, in the absence of underlying bowel pathology distal to the stone. In light of worsening pain and distension after failed endoscopic treatment, the patient was treated with an(More)
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