نتایج جستجو برای: equivalent suction

تعداد نتایج: 147559  

Introduction: Nursing interventions have a direct impact on patients’ clinical status. Nurses should be aware of the dangers of intubation tube suction and have continuous training in this field. The aim of this study was to determine the effect of education standard suction with small group on nurses’ performance in intensive care unit. Methods : This was a quasi-experimental study which was ...

Journal: :The Journal of experimental biology 2008
Christopher D Marshall Kit M Kovacs Christian Lydersen

Feeding kinematics, suction and hydraulic jetting capabilities of bearded seals (Erignathus barbatus) were characterized during controlled feeding trials. Feeding trials were conducted both on land and in water, and allowed a choice between suction and biting, but food was also presented that could be ingested by suction alone. Four feeding phases, preparatory, jaw opening, hyoid depression and...

Journal: :iranian journal of nursing and midwifery research 0
farkhondeh yousefnia-darzi farideh hasavari tahereh khaleghdoost ehsan kazemnezhad-leyli malahat khalili

abstract background: accumulation of secretions in the airways of patients with an endotracheal tube and mechanical ventilation will have serious consequences. one of the most common methods of airway clearance is endotracheal suctioning. in order to facilitate discharge of airway secretion resulting in promotion of gas exchange, chest physiotherapy techniques can be used at the time of expirat...

2015
Wen-Li Chen Yong Cao Hui Li Hui Hu

This paper numerically investigates the effectiveness of the control of steady suction on a stationary circular cylinder with several isolated suction holes on the surface at a subcritical Reynolds number. The control effectiveness as a function of the azimuthal position, spanwise spacing and suction flow rate of the suction holes on the control of the aerodynamic forces on the cylinder and the...

2010
RALF MESSING MARKUS J. KLOKER M. J. Kloker

Direct numerical simulations are employed to investigate the effects of discrete suction orifices at the wall on the disturbance evolution in laminar three-dimensional boundary-layer flows with favourable pressure gradient. Suction panels with many suction orifices can excite unstable crossflow (CF) modes even if the orifice spacing is smaller than the chordwise/spanwise wavelengths of unstable...

Journal: :archives of anesthesiology and critical care 0
nasim alipour hamadan university of medical sciences nahid manouchehrian hamadan university of medical sciences mehdi sanatkar tehran university of medical sciences hassan mohammadi poor anvari tabriz university of medical sciences mohammad sadegh sanie jahromi jahrom university of medical sciences

background: nosocomial pneumonia is a prevalent complication in patients admitted to intensive care units (icu). endotracheal suction is used in cleaning the airways of secretions in patients under mechanical ventilation. performing suction accurately is of great importance to prevent ventilation associated pneumonia. the purpose of this study was to compare the effect of open versus closed tra...

Journal: :iranian journal of nursing and midwifery research 0
hojatollah yousefi jahanbakhsh vahdatnejad ahmad reza yazdannik

abstract background: most of the patients admitted in the intensive care units (icus) require an endotracheal tube and mechanical ventilation. in order to clear and maintain patency of the airways, endotracheal suctioning is required. therefore, the least detrimental way of endotracheal tube suctioning which can diminish the complications should be selected. the present study aimed to compare t...

Journal: :journal of hydraulic structures 2013
somayeh soltani gerdefaramarzi hossein afzalimehr yee-meng chiew mohsen ghasemi

the effect of a combined system of the bed suction and jet injection as a pier-scour countermeasure on the turbulent flow field is studied in a laboratory flume using an acoustic doppler velocimeter (adv). the three components of the velocities in the vertical symmetry plane in the equilibrium scour hole in front and rear of the pier under 3-jet injections and bed suction rate qs/q0 = 2%located...

Journal: :Integrative and comparative biology 2007
Peter Wainwright Andrew M Carroll David C Collar Steven W Day Timothy E Higham Roi A Holzman

Despite almost 50 years of research on the functional morphology and biomechanics of suction feeding, no consensus has emerged on how to characterize suction-feeding performance, or its morphological basis. We argue that this lack of unity in the literature is due to an unusually indirect and complex linkage between the muscle contractions that power suction feeding, the skeletal movements that...

Journal: :Chest 2004
Birgitta Almgren Carl-Johan Wickerts Erkki Heinonen Marieann Högman

STUDY OBJECTIVES To investigate the effects of endotracheal suction in volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV) with an open suction system (OSS) or a closed suction system (CSS). DESIGN Randomized comparison. SETTING Animal research laboratory. PATIENTS Twelve healthy anesthetized pigs. INTERVENTIONS The effects of endotracheal suction during VCV an...

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