Research on the ejection performance of an ejector with low pressure and back pressure
Scientific ReportsThis study investigates the influence of back pressure on the mass ejection coefficient (u) of low-pressure methane-air ejectors through a combined approach of one-dimensional mathematical modeling and computational fluid dynamics (CFD) simulations.
Cong Chen, Haijing Liu, Pengfei Duan
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A Review on Pressure Ulcer: Aetiology, Cost, Detection and Prevention Systems [PDF]
, 2014 Pressure ulcer (also known as pressure sore, bedsore, ischemia, decubitus ulcer) is a global challenge for today’s healthcare society. Found in several locations in the human body such as the sacrum, heel, back of the head, shoulder, knee caps, it occurs
Cole, Jonathan +3 more
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3D pain drawings and seating pressure maps: Relationships and challenges [PDF]
, 2011 This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 IEEEMobility impaired people constitute a significant portion of the adult population, which often experience back pain ...
Spyridonis, F +3 more
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Low fouling conditions in dead-end filtration: Evidence for a critical filtered volume and interpretation using critical osmotic pressure [PDF]
, 2005 This paper presents experiments showing the existence of a critical filtered volume (CFV) when operating colloid dead-end filtration. The CFV is here defined as the filtered volume below which there is no irreversible (with respect to a break in the ...
Bessiere, Yolaine +2 more
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Center of pressure excursion as a measure of balance performance in patients with non-specific low back pain compared to healthy controls: a systematic review of the literature [PDF]
, 2010 Over the past 20 years, the center of pressure (COP) has been commonly used as an index of postural stability in standing. While many studies investigated COP excursions in low back pain patients and healthy individuals, no comprehensive analysis of the ...
Alexander Ruhe +5 more
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Frontiers in Public Health, 2022 BackgroundMusculoskeletal disorders (MSDs) are critical occupational and social problems. With the improvement of production mechanization and automation, and the widespread application of computers, more occupations are exposed to static postures and ...
Yidan Dong +11 more
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Experimental analysis of the pressure–velocity correlations of external unsteady flow over rocket launchers [PDF]
, 2013 Based on simultaneous wall pressure and velocity measurements, the aerodynamic load of a launcher body model is investigated. Two different configurations are considered in order to study the influence of geometrical artifacts on the after body flow and ...
DRUAULT, Philippe +7 more
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P108 Right atrial pressure as back-pressure to venous return
, 2017 Introduction: Guyton’s graphic analysis integrates vascular and cardiac function. Questions remain whether right atrial pressure (RAP) acts as the back-pressure for venous return (VR) with mean systemic filling pressure (MSFP) as up-stream pressure, and ...
Jakob, Stephan +3 more
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Numerical study on the influence of plugging rate on the performance of adjustable steam ejector [PDF]
International Journal of Fluid EngineeringDuring the operation of thermal power plant systems, severe challenges to the quality and safety of the heat supply arise owing to the effects of peak regulation.
Jianxiang Gao +3 more
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Is there a relationship between pain intensity and postural sway in patients with non-specific low back pain? [PDF]
, 2011 Background Increased center of pressure excursions are well documented in patients suffering from non-specific low back pain, whereby the altered postural sway includes both higher mean sway velocities and larger sway area.
Walker Bruce +8 more
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