نتایج جستجو برای: mechanical methods
تعداد نتایج: 2077186 فیلتر نتایج به سال:
Committee: Prof. Drahomı́r Novák Vysoké Učenı́ Technické v Brně President Prof. Tomaž Rodič Univerza v Ljubljani Opponent Prof. Pierre Villon Université de Technologie de Compiègne Opponent Delphine Brancherie, Ph.D. Université de Technologie de Compiègne Examiner Jan Zeman, Ph.D. České Vysoké Učenı́ Technické v Praze Examiner Prof. Hermann Matthies Technische Universität Braunschweig Examiner Pro...
Introduction & Objective: The main indication of mechanical ventilation is in the treatment of neonates with respiratory failure. With the increased use of mechanical ventilation, its complications have increased too. The aim of this study was to evaluate the prevalence of complications and short-term improvement in infants undergoing mechanical ventilation in the neonatal intensive care unit (...
abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...
background : since the use of high concentrations of oxygen in infants may lead to chronic lung problems, using proper methods of care in infants under mechanical ventilation is one of the most important measures in nicu. this study aimed to investigate the effects of prone and supine positions on oxygenation (spo 2 ) in premature infants under mechanical ventilation and comparing infants’ oxyg...
mechanical weeding is one of the non-chemical methods to control weeds. in this paper a new mechanism has been presented for mechanical cultivation. the machine works based on the manual tools operation, which farmers still use in small scale for weeding and consists of a number of four-bar linkage mechanisms. each mechanism consists of a blade which moves forward (active course) and backwa...
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