A numerical study has been conducted to explore the effect of a pressure-side winglet on the flow and heat transfer over a blade tip.Calculations are performed for both a flat tip and a squealer tip.The winglet is in the form of a flat extension, and is shaped in the axial chord direction to have the maximum thickness at the chord location, where t
Cor Triatriatum Sinister: An Unusual Cause of Atrial Fibrillation in Adults
Cor triatriatum is a rare congenital heart defect that is associated with an increased risk for developing oven thermostat atrial fibrillation.We report a case of a healthy 38-year-old man who presented in decompensated heart failure and atrial fibrillation with a rapid ventricular response.A transthoracic echocardiogram (TTE) demonstrated severe b
Mucosal Melanoma In Situ of the Oral Cavity: A Case Report and Systematic Review of the Literature
Objective:Malignant mucosal melanomas of the head and neck comprise a very small portion of all melanomas, particularly in the oral cavity.These lesions are associated with high rates of local recurrence, distant metastasis, and a very poor 5-year survival rate; however, the clinical outcomes of mucosal melanoma in situ of the oral cavity are uncle
Rare Lesions Located in Nuchal Region
Synovial sarcomas are the most common sarcomas of the extremities.However, they are rarely seen in the head and neck region and only 2 cases in the nape of the neck have been reported in the literature.Hemangiopericytomas are Active toy neoplasms of vascular origin that are rarely seen in the head and neck region.There have been only 1 case of hema