نتایج جستجو برای: compression
تعداد نتایج: 90778 فیلتر نتایج به سال:
background calcium infusion is used as a pre-treatment before calcium channel blockers to prevent hypotension. occasional cardioversion with calcium gluconate infusion is seen in patients with paroxysmal supraventricular tachycardia. several mechanisms have been suggested for mechanism. herein we report a case presenting with atrial fibrillation but cardioverted with calcium gluconate infusion,...
Changing the compression ratio and presence of turbocharger are two important issues, affecting on performance, and exhaust emissions in internal combustion engines. To study the functional properties and exhaust emissions in regards to compression ratio at different speeds, the numerical solution of the governing equations on the fluid flow inside the combustion chamber and the numerical solut...
This research analyzes an integrated refrigeration system including a microturbine, a compression chiller and an absorption chiller. The power from the microturbine utilized in the compression chiller compressor, air fans and absorption chiller pump and the waste heat from the exhaust operates the absorption chiller. Four various integrated configuration of the compression and absorption cycles...
Microarray technology is a new and powerful tool for concurrent monitoring of large number of genes expressions. Each microarray experiment produces hundreds of images. Each digital image requires a large storage space. Hence, real-time processing of these images and transmission of them necessitates efficient and custom-made lossless compression schemes. In this paper, we offer a new archi...
Background & Aims: Peripheral nerve injuries affect both sensory and motor function, resulting in retrograde reaction to neuronal cell bodies in the ventral horn of spinal cord ventral and their destruction. Achillea wilhelmsii is one of the popular medicinal herbs which grow in dry and semitropical areas worldwide. There are several reports indicating the anti-inflammatory, antispasmodic, anti...
The purpose of this study is to survey cross section changes of the animal brain samples during the tension and compression tests and comparison of the experimental results for three animals: bovine, sheep, and rabbit. A linear elastic theory with considering the necking in tension and barreling in compression has been considered for brain tissue. Bridgman method for tension and cross section u...
Background: During general anesthesia in patients with mediastinal mass compression effect on the heart, great intra thoracic vessels, or tracheal tree can lead to decrease venous return, cardiovascular collapse or tracheal obstruction. These complications may be worsened after induction of general anesthesia or prescribing muscle relaxants. Case report: A twenty one years old female with huge...
treatment of spinal cord injury by exogenous cells has brought both successful and unsuccessful results. olfactory ensheathing cells and schwann cells have been widely used for transplantation purposes. in this study, we investigated the effects of these cells on contused spinal cord by introducing cells into subarachnoid space. fifty thousand schwann cells or olfactory ensheathing cells or a m...
the effects of rib cage compression on spo2 yosefnia darzi f , hasavari f* , khaleghdost t , kazemnezhad e , hoseini j received: 5 sep , 2013 accepted: 31 oct , 2013 abstract background & aims: accumulation of secretions in airways is a serious complication in intubated and mechanically ventilated patients. tracheal suctioning which is done with the aim of the secretion removal, can be used in ...
the effect of expiratory rib – cage compression before endotracheal suctioning on blood pressure in patients under mechanical ventilation shrvani y [1] *, piami bosary m [2] , agha hasan kashani s3, mosavi nasab n4, ghafouri fard m5 received: 21 apr , 2013 accepted: 12 jul , 2013 abstract background & aims : in patients undergoing mechanical ventilation because of an endotracheal tub...
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