Background and Objectives: Suction is a necessary and common method which aids in the release of secretion from the respiratory system for the patients who have undergone mechanical ventilation. One of the most common complications of suction is hypoxemia which causes dysrhythmia and death. The purpose of this study was to determine the effects of open and closed-endotracheal suction on cardiov...

Loss of matric suction during rain has an important effect on the instability expansive soil slope. A new device was designed for testing force in order to propose and determine equivalent corresponding suction. First, internal relation between unsaturated analyzed. Then, numerical algorithm implementation discussed, introduced into strength reduction finite element method (FEM). Finally, effec...

in this study, the effect of suction and the parameters such as suction amplitude, suction coefficient and suction jet length on naca0012 was evaluated. the turbulence employed model was the rsm model. suction jet is located in 10% of the chord length. the range of suction jet entrance velocity was selected from 0.1 to 0.5 of freestream velocity. the maximum increase in lift to drag ratio was s...

Rainfall-induced landslide is a common natural hazard, and one of the disaster-causing factors loss apparent cohesion that mainly caused by dissipation matric suction. To analyze rainfall-induced landslide, especially post-failure behaviors, suction model proposed incorporated into Discontinuous Deformation Analysis (DDA). In this model, simplified as an equivalent line load updated at each tim...

Past efforts to reduce the airfoil count in low pressure turbines have produced high lift profiles with unacceptably high endwall loss. The purpose of the current work is to suggest alternative approaches for reducing endwall losses. The effects of the fluid mechanics and high lift profile geometry are considered. Mixing effects of the mean flow and turbulence fields are decoupled to show that ...

In this paper, the transient refrigerant gas flow in a two-cylinder rolling piston type rotary compressor is simulated using STAR-CD, a general computational fluid dynamics (CFD) software. Three models with different suction piping systems are calculated respectively, one is two suction pipes were connected from accumulator to each cylinder separately (separate suction piping system), the other...

BACKGROUND The appropriate colon cleansing is a major determinant of quality of colonoscopy. This prospective randomized study was designed to compare the efficacy and tolerability of the morning (AM) PEG (polyethylene glycol) solution to previous-evening (PM) PEG solution for the afternoon colonoscopy. METHODS This comparative study compared the AM to PM prep for afternoon outpatient colonos...

a numerical model is developed to simulate the transport phenomena in the flow channel between parallel plates with porous and non-porous (or impermeable) walls. the continuity and momentum equations were solved first, assuming the wall reynolds number in the range of with the suction or injection of air at a speed equal to the uniform inlet velocity. the results show that at constant inlet and...

The compression efficiency of a rolling piston type rotary compressor for room airconditioners was analyzed, Suction passage loss is one of the detracting factors in compression efficiency and we studied its main cause, i.e. the pressure pulsation generated in the suction line, and clarified the relation between suction line specification and suction passage loss. A method of evaluating the suc...

Suction caisson is a type of floor foundation for the offshore structures that is also called suction pile, bucket foundation, suction anchor, or sometimes ridge foundation depending on its application. In two past decades, this type of foundation has been widely used around the world as the fixed offshore foundation, anchor of the floating platforms, as well as the foundation of other marine s...