نتایج جستجو برای: replacement series

تعداد نتایج: 458485  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

the present study aimed to investigate representation of discourse markers and metadiscourse markers in conversations and readings of general elt coursebook series used in the language centers of iran. to this aim, four elt coursebooks popularly taught in language centers of this country were analyzed based on fung and carter’s (2007) framework regarding discourse markers and hyland’s (2005) fr...

Journal: :Applied Stochastic Models in Business and Industry 2004

Journal: :International journal of advanced research 2022

Patients are very much concerned nowadays about the replacement of their missing teeth. Missing anterior teeth a serious concern for patients, be it an aesthetic or functional loss. Aesthetics is harmony between and entire stomatognathic system. Aesthetic art that dentist must procure, with subtle touch artistry, appreciation, scientific knowledge, to recreate beauty smile suits face personalit...

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2017

It is demonstrated that the addition of organo-modified Na-bentonite (OMB) particles to Portland cement mortar can promote its physical and mechanical properties. A series of experimental works on some important physico-mechanical properties of Portland cement mortars mixed with various dosages of hydrophobic OMB were performed. The obtained results confirm that the OMB provides a dense packing...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2014
Denis A Berdajs Mirza Muradbegovic Daniel Haselbach Reto Kofmehl Johann Steurer Enrico Ferrari Ulrike Held Ludwig K von Segesser

There is controversy over the use of the Ross procedure with regard to the sub-coronary and root replacement technique and its long-term durability. A systematic review of the literature may provide insight into the outcomes of these two surgical subvariants. A systematic review of reports between 1967 and February 2013 on sub-coronary and root replacement Ross procedures was undertaken. Twenty...

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