The power requirement of a ship propulsion system is directly proportional to the fuel consumption and emissions released. By reducing engine power, can be reduced. One energy saving devices (ESDs) that positioned in region between stern hull propeller pre-duct. ESD improve propulsive coefficient system. This research explains effect circular pre-duct on hull-propeller interaction. A numerical ...

Background: Persistent thyroglossal duct leads to a fibrous cyst formation named thyroglossal cyst which is the most common form of congenital cyst and usually located in the midline neck below the hyoid bone. Rarely the thyroglossal cyst is associated with thyroid cancer. Although the Sistrunk procedure is often considered adequate, currently there is no clear consensus on the optimal manageme...

introduction extra-hepatic bile duct injuries in children following blunt abdominal trauma are rare; early diagnosis and treatment are imperative for a good outcome. the purpose of this report is to describe the management of problems encountered in children with bile duct injuries following blunt abdominal trauma. case presentation a three year-old girl presented with obstructive jaundice and ...

purpose: to evaluate the effect of stenosis nature on success of silicone intubation for nasosolacrimal duct stenosis (nlds) in adults (patent nasolacrimal duct with resistance to positive-pressure irrigation) methods: an interventional case series of consecutive monocanalicular and bicanalicular silicone intubation for nasolacrimal duct stenosis in adults were reviewed. the severity of the ste...

Age-related changes in cardiac and vascular function are associated with increased risk of cardiovascular mortality and morbidity. The aim of the present study was to define the effect of age on the relationship between cardiac and vascular function. Haemodynamic and gas exchange measurements were performed at rest and peak exercise in healthy individuals. Augmentation index was measured at res...

One possible way to harness wind more efficiently in low-wind urban areas is place turbines inside a duct. A known issue of such approach due the flow separation that can occur at diffuser walls. This be avoided using channelled structure consisting duct and flap, also as multi-slot system. The present work describes effects flap geometry on turbine performance, through computational fluid dyna...

OBJECTIVE Rapid diagnosis of acute cholecystitis is essential to minimize morbidity and mortality. The purpose of this study was to assess the diagnostic utility of cholescintigraphy using morphine augmentation compared with ultrasound, in acute and chronic gallbladder disease. METHODS Cholescintigrams were performed on 103 patients suspected of having acute cholecystitis. In 79 patients (Gro...