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This paper investigates the use of optimal preview control for tracking trajectories for air-to-surface missiles. A trajectory is generated off-line by solving a trajectory optimization problem, which incorporates the mission constraints and a model of the missile dynamics. A controller is then designed using optimal preview control to track the reference(More)
A 27-year-old rugby player underwent anterior cruciate ligament (ACL) reconstruction, using autograft. Postoperatively, septic arthritis was missed due to atypical presentation but diagnosed 2 days later and underwent open arthrotomy and lavage, He received antibiotics for 5 weeks. Aspirate showed clostridium perfringens. Later, extension lag was developed,(More)
A lady aged 26 years reported with a 2 months history of fever, upper abdominal pain and weight loss. Her abdominal ultrasonographic scan revealed a complex cystic mass in left lobe of liver suggestive of hydatid cyst that was confirmed on magnetic resonance imaging of abdomen and magnetic resonance cholangiopancreatogram. With strong suspicion of a hydatid(More)
Question: A 60-yearold obese (body mass index of 50 kg/m2) woman was admitted through the emergency department with a history of severe colicky abdominal pain, abdominal distension, and constipation. She was known to have diverticular disease of sigmoid colon, hypertension, diabetes, and chronic obstructive pulmonary disease. here was no history of any(More)
BACKGROUND Dysphagia results from impeded transport of liquids, solids, or both from the pharynx to the stomach. Among the malignant lesions, carcinoma of oesophagus is the commonest cause. Our objective was to find out the frequency of different endoscopic lesions and outcome of the endoscopic therapeutic interventions in patients presenting with(More)
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