2,723 research outputs found
Development of a meso-microscale coupling procedure for site assessment in complex terrain
A procedure for coupling mesoscale and CFD codes is presented, enabling the inclusion of
realistic stratification flow regimes and boundary conditions in CFD simulations of relevance to site and
resource assessment studies in complex terrain. Two distinct techniques are derived: (i) in the first one,
boundary conditions are extracted from mesoscale results to produce time-varying CFD solutions; (ii) in
the second case, a statistical treatment of mesoscale data leads to steady-state flow boundary conditions
believed to be more representative than the idealised profiles which are current industry practice. Results
are compared with measured data and traditional CFD approaches
Choledochoduodenostomy in the Management of Common Duct Stones or Associated Pathology – An Obsolete Method?
Choledochoduodenostomy (CDD) has been reported as a more effective treatment of CBD stones than T-tube drainage but it is regarded as a last resort or obsolete therapeutic method due to fears of higher mobidity, cholangitis, “sump” syndrome and liver dysfunction. We aimed to assess the aforementioned issues analyzing prospectively our experience from 1976 through Dec.92
Miniprobe endoscopic ultrasonography for the diagnosis of colon hemangiolymphangioma
Hemangiolymphangioma is a very rare benign vascular tumor that affects the gastrointestinal tract in less than 1% of cases. We present the case of an asymptomatic 52-year-old female referred for endoscopic colorectal cancer screening. A sub-epithelial pediculated polypoid lesion in the splenic angle of the colon was identified. An endoscopic ultrasonography with a miniprobe was performed, which identified an anechoic lesion in the submucosal layer. Surgery was performed and the histologic findings were compatible with two hemangiolymphangioma lesions. This is one of the few cases reported in the literature of hemangiolymphangioma diagnosed by miniprobe endoscopic ultrasonography and the first to describe two lesions in the same patient.info:eu-repo/semantics/publishedVersio
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