Seismic object detection is a relatively new field in which 3-D bodies are visualized and spatial relationships between objects of different origins are studied in order to extract geologic information. In this paper, we propose a method for finding an optimal classifier with the help of a statistical feature ranking technique and combining different classifiers. The method, which has general a...

An 83-year-old man with aortic arch aneurysm underwent zone 0 thoracic endovascular aortic repair (TEVAR) by the chimney graft technique with two supra-aortic arch debranching grafts and developed subacute type A ascending aortic dissection. We performed emergency open conversion with circulatory arrest under deep hypothermia. The tip of the chimney graft (around the sino-tubular junction in th...

Endovascular aneurysm repair is a minimally invasive, durable and effective alternative to open surgery for treatment of abdominal aortic aneurysms (AAA). However, in patients who do not have an adequate sealing zone, open surgical repair is required, which may increase mortality and morbidity. An alternative treatment in patients with challenging anatomy is the so-called "chimney graft" techni...

• A method to reduce the vibration of chimneys by tuning suspended liners is proposed. simplified model chimney with for numerical analysis introduced. Conceptual design and optimization methods are proposed tuned structure. Reinforced concrete steel widely used in waste gas discharge industrial facilities, guaranteeing their safety performance harsh environments important industries society. T...

BACKGROUND The chimney/periscope technique has been used to address complex aortic pathologies. This study aimed to report the outcomes and experiences of chimney and/or periscope grafts (CPGs) used in the endovascular management of complex aortic pathologies. METHODS Twenty-two patients with complex aortic pathologies were retrospectively studied from January 2013 to August 2016 in two vascu...

Steel chimneys are utilized all over the world for quick work in industries and discharging flue gases into nature. Where utilized, nearby region is not influenced by chimney because height set high.This paper focuses on frequency analysis of steel 275m 120 m heights. Two models each considered, Model 1 tapered section with uniform thickness 2 diameter considered. Finite element method (FEM) us...