In this paper, we present a numerical three-dimensional study of coupled heat and mass transfer by natural convection occurring in a trapezoidal cavity. Our objective is to evaluate numerically the thermal and hydrodynamic behaviour of this system. It is assumed that the cavity vertical walls are thermally isolated and impermeable, and we imposed on the lower surface a constant high temperature and concentration. The upper surface is supposed to be cooled at a constant temperature and has a zero concentration.Governing equations are solved by a finite-volume technique and provide the temperature, concentration and velocity fields in binary mixture air-water vapor system. The obtained results show that the flow configuration depends strongly on the α angle inclination of the upper wall. The influence of the cavity dimensions on heat and mass transfer rates is also examined. In particular, as the aspect ratio increases, multi-cellular flow patterns start to form.
We report the case of a 48-year-old man with ischemic stroke, diabetes and chronic renal failure admitted for fever with LUTS associated with nausea and vomiting.The physical examination showed a depressible abdomen, painful prostate on digital rectal examination.A biological inflammatory syndrome with diabetic ketoacidosis.The abdominopelvic CT scan confirmed the diagnosis by the presence of gas in the prostate,and the CBUE was positive for
Enterobacter cloacae
.The patient was treated with appropriate antibiotic therapy with transrectal aspiration of the prostate collection,but the evolution was marked by the worsening of the patient's condition leading to his death after two weeks of treatment.
Renal cell carcinoma (RCC) is rare in children and is usually found in late children. We present a case of a 14 year-old boy who presented with right lumbar pain. CT-scan showed a tumor in the upper pole of the right kidney measuring 15 cm. He underwent radical nephrectomy and histopathologic examination revealed RCC. No adjuvant therapy was given. After three years and half, there is no evidence of recurrence.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.