نتایج جستجو برای: pyridate mechanical control
تعداد نتایج: 1539224 فیلتر نتایج به سال:
با توجه به گسترش روزافزون کاربردهای محرک های پیزوالکتریک در زمینه های اتوماسیون و ابزاردقیق، مخابرات، اپتیک، نانوتکنولوژی وتکنولوژی نیمه هادیها، بدلیل داشتن قابلیت های مختلف از جمله، ایجاد حرکت نانومتری وزیرنانومتری در فرکانس های بالاو با دقت و وضوح بسیار زیاد، نیاز به طراحی یک سیستم برای کنترل حرکت آنها امری ضروری می باشد. اما برای کنترل حرکت آنها ابتدا لازم است رفتار آنها مدل شود. تاکنون مدل ...
Abstract Background & Aims: Respiratory diseases are the common cause of hospitalization of preterm infants in neonatal intensive care unit. Although mechanical ventilation has saved many infants' lives, like other treatments; it has not been without harm. Developmental care intervention is a potential method for reducing the duration of mechanical ventilation in infants. The aim of this stu...
background: oral care plays an inevitable role in health and well-being of patients in intensive care units (icus). poor oral care causes colonization of respiratory pathogens and secondary respiratory infections. ventilator-associated pneumonia occurs in patients on mechanical ventilation for more than 48 hours. it results in prolonged duration of mechanical ventilation, mortality and health e...
the sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. to address this, development of a new class of more sustainable cement-based materials is needed. fiber reinforced self-consolidating mortar (frscm) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...
background: characterizing the mechanical properties of brain tissue is deemed important for developing a comprehensive knowledge of the mechanisms underlying brain diseases. mechanical properties of very soft tissues, such as brain until recently have been attracted the attention of researchers because these tissues do not tolerate mechanical loads. the mechanical properties of brain tissue, h...
this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...
چکیده این پایان نامه به بررسی اثر سیم پیچ مغناطیسی و کاوه یِ خوشه گر با بسامد رادیویی بر هاله و بیرونگراییِ باریکه هایِ پیوسته و خوشه ایِ ذرات باردار در شتابدهنده های خطیِ یونی، پروتونی با جریان بالا می پردازد و راه حل هایی برای بهینه نگهداشتن این کمیتها ارایه می دهد. بیرونگرایی یکی از کمیتهای اساسی باریکه هایِ ذرات باردار در شتابدهنده ها است که تاثیر قابل توجهی بر قیمت، هزینه و کاراییِ هر شتابدهند...
Background: Weaning from mechanical ventilation in the intensive care unit is an important step in the treatment process. More patients in less than 6 hours after cardiac surgery can be separated from mechanical ventilation and extubated. However, 20-40% of patients after cardiac surgery, due to dysfunctional ventilator weaning response (DVWR), still remain under mechanical ventilation. Therefo...
Abstract Aim. The aim of this study was to examine the effect of protocol of weaning from mechanical ventilation on the gastrointestinal function in people undergoing CABG. Background. The most common problems after cardiac surgery in the intensive care unit are change in vital signs, respiratory problems, unsuccessful separation from mechanical ventilation, and gastrointestinal problems. Due t...
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