نتایج جستجو برای: chimney drain
تعداد نتایج: 11747 فیلتر نتایج به سال:
Background & Aims: Inguinal hernia is one of the most common causes of surgery in the world. With increasing of age hernia prevalence rate increases so that in age over 70 years its prevalence gets at 50 percent. Different methods are described in hernia repair and each of them has its own advantages and disadvantages. At present the method of choice for inguinal hernia repair is the tension ...
The increasing consumption of energy from fossil fuels on the one hand and the pollution created by it on the other hand has always raised the concern of replacing clean and renewable energy with fossil fuels in the human mind. Generating electricity through clean energy can be a good solution to reduce pollutants and prevent global warming. One of the most available types of renewable energy i...
in this research, the appropriateness of drainmod-n model was evaluated for the simulation of nitrate transport with subsurface drainage in paddy fields. during a canola growing season from november 2011 to april 2012, the nitrate concentration of drainage water and soil saturation extracts of two depths of 30 and 60 cm was measured in consolidated paddy fields of sari agricultural sciences and...
Introduction: The application of droun in clean orthopedic operations takes place usually without a scientific basis. The purpose of the present study is to evaluate the hemovacum drain efficacy in some of orthopedic operations related to trauma. Methods: In this experimental trial, 141 patients who were admitted to Dr. Bahonar Hospital, between September 2004 to April 2005, for surgical oper...
iran is ranked fourth for saline-sodic soils in asia following china, india and pakistan. therefore, if coupled with waterlogging, drainage would be an inevitable and indispensable activity agriculture in most irrigated parts of iran. drain installation depth is one of the main economic as well as environmental challenges in design and construction of drainage systems. deep pipe drain installat...
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...
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...
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