A detailed review and analysis of the hydrodynamic characteristics of laminar developing and fully developed flows in noncircular ducts is presented. New models are proposed, which simplify the prediction of the friction factor–Reynolds product f Re for developing and fully developed flows in most noncircular duct geometries found in heat exchanger applications. By means of scaling analysis it ...

BACKGROUND/AIMS To determine the effect of stone within the common bile duct, on the severity of acute biliary pancreatitis. MATERIAL AND METHODS This is a prospective and cross sectional study which was conducted at a tertiary care hospital including 103 patients. Serum biochemical values and white blood cell counts at the first 12th and 72nd hours of presentation were evaluated. The patient...

Presenter: Jon Gerry MD | Providence Portland Medical Center Background: The extent of involvement the main pancreatic duct with IMPN can be variable. Lesions in neck or body pancreas present a challenge determining whether resection head pancreaticoduodenectomy tail distal pancreatectomy is most appropriate. Methods: We case an involving dilation throughout pancreas. performed laparoscopic duc...

The Kamioka Liquid scintillator Anti-Neutrino Detector (KamLAND) is collecting antineutrino events generated by nuclear reactors and by Thorium and Uranium decay in the Earth interior. We comment on a systematic approach to the evaluation of the geo-neutrino contribution and of its uncertainties in KamLAND, taking into account geophysical and geochemical indications, estimates, and data. The re...

mirizzi’s syndrome is a rare complication of gallstone disease , that gallbladder lumen can lie alongside the common hepatic duct, resulting in inflamation and resultan bile duct stricture . most cases are not indentified preoperatively. variations of the cystic duct and its point of :union: with the common hepatic duct are surgically important . here, we present an unusual case of type i miriz...

BACKGROUND AND AIMS Although indirect methods of assessment of the exocrine pancreatic function have become the standard of care in the monitoring of pancreatic status, it still remains a current clinical challenge. Our aim was to compare the width of the pancreatic duct in pancreatic insufficient (PI) and pancreatic sufficient (PS) cystic fibrosis (CF) patients using secretin-enhanced magnetic...

Background: Previous studies have considered patent ductus arteriosus (PDA) a common finding in premature infants, leading to complications such as intracranial hemorrhage, necrotizing enterocolitis and pulmonary dysplasia. The aim of this study was to assess and compare the efficacy of oral ibuprofen and intravenous acetaminophen in the closure of arterial duct in premature newborns. We also e...

INTRODUCTION The conversion of synthesis gas to methanol is practiced commercially in gas phase fixed bed reactors over a Cu/Zn/Al,O1 catalyst. However, because of the highly exothermic nature of the synthesis reactions, heat dissipation has been a bottleneck in the reactor design and process configuration. Moreover, coalderived synthesis gas, having a low H,/CO ratio, is not suitable for use i...