Relationship between coronary diastolic pressure indexes during the wave‐free period and a novel pressure‐derived index: Diastolic pressure ratio at the optimal point
Sign Up to like & getrecommendations! Published in 2018 at "Catheterization and Cardiovascular Interventions"
DOI: 10.1002/ccd.28019
Abstract: We aimed to determine the diastolic pressure ratio at the optimal point (DROP) using a simple measurement algorithm and to compare DROP with distal coronary‐to‐aortic pressure ratios during the wave‐free period (PRWFP) and at the… read more here.
Keywords: optimal point; pressure ratio; ratio optimal; diastolic pressure ... See more keywords
Experimental study on the impact of pressure ratio on temperature drop in a Ranque-Hilsch vortex tube
Sign Up to like & getrecommendations! Published in 2021 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2021.116653
Abstract: Abstract An experimental investigation of a Ranque-Hilsch vortex tube has been performed. The investigation focuses on the effects that pressure magnitude, pressure drop and pressure ratio have on the temperature drop between the inlet and… read more here.
Keywords: temperature; temperature drop; pressure; pressure ratio ... See more keywords
Numerical investigation of a HPT with different rotor tip configurations in terms of pressure ratio and efficiency
Sign Up to like & getrecommendations! Published in 2017 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2016.12.009
Abstract: Abstract The choice of the most appropriate rotor tip configuration is important, because it helps to avoid high blade tip losses due to the leakage flow that are responsible for efficiency and pressure ratio drops,… read more here.
Keywords: hpt; pressure ratio; geometry; tip ... See more keywords
A compressed air energy storage system with variable pressure ratio and its operation control
Sign Up to like & getrecommendations! Published in 2019 at "Energy"
DOI: 10.1016/j.energy.2018.12.108
Abstract: Abstract The compressed air energy storage (CAES) system generally adopts compressors and turbines to operate under a constant pressure ratio. The system working parameters cannot adapt to load change, which causes the system efficiency to… read more here.
Keywords: caes system; system; pressure ratio;
INCREASED PULMONARY-SYSTEMIC PRESSURE RATIO IS ASSOCIATED WITH ADVERSE OUTCOMES IN CARDIOGENIC SHOCK
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the American College of Cardiology"
DOI: 10.1016/s0735-1097(18)31499-2
Abstract: Pulmonary-Systemic pressure ratio (MPS), a marker of interventricular coupling and efficiency, has been associated with adverse events in patients with acute decompensated heart failure. We hypothesized that in patients with cardiogenic shock (CS), an increased… read more here.
Keywords: pressure ratio; cardiogenic shock; systemic pressure; pulmonary systemic ... See more keywords
Magnetic pressure effects in a plasma-liner interface
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5025800
Abstract: A theoretical analysis of magnetic pressure effects in a magnetized liner inertial fusion-like plasma is presented. In previous publications [F. Garcia-Rubio and J. Sanz, Phys. Plasmas 24, 072710 (2017)], the evolution of a hot magnetized… read more here.
Keywords: magnetic pressure; pressure ratio; plasma liner; effects plasma ... See more keywords
Aerodynamic Optimization Design of a Supersonic Compressor Rotor with High Pressure Ratio
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Aerospace Engineering"
DOI: 10.1155/2021/6664968
Abstract: Supersonic compressors have a high wheel speed and operational capability, which facilitate a high stage pressure ratio. However, the strong shock waves in the passage of a supersonic rotor and the interference between shock waves… read more here.
Keywords: design; pressure ratio; rotor; pressure ... See more keywords
Potential of variable diffuser vanes for extending the operating range of compressors and for improving the torque performance of turbocharged engines
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering"
DOI: 10.1177/0954407016661440
Abstract: Turbocharging plays a significant role in internal-combustion engines. For engines in the future or for engines operating at a high altitude, compressors which are able to deliver a high pressure ratio are preferable. However, the… read more here.
Keywords: diffuser; pressure ratio; operating range; range ... See more keywords
Using a three-dimensional tube bundle model to investigate the leakage flow characteristics of the rotating brush seal
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/09576509221089397
Abstract: In comparison to the traditional brush seal, the rotating brush seal installed on a rotating shaft eliminates the influence of friction heat effects and improves the operational stability of the rotating shaft system. Relevant investigations… read more here.
Keywords: brush seal; rotating brush; pressure ratio; seal ... See more keywords
Numerical simulation of the relationship between underwater jets oscillation and shock wave
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Vibroengineering"
DOI: 10.21595/jve.2017.17657
Abstract: In order to study the relationship between an underwater shock wave and jet thrust oscillation, a simulation model of underwater jet is established. As per a numerical calculation based on the SST (Shear Stress Transport),… read more here.
Keywords: relationship underwater; jet; pressure ratio; shock wave ... See more keywords
Effects of Variable Diffuser Vanes on Performance of a Centrifugal Compressor with Pressure Ratio of 8.0
Sign Up to like & getrecommendations! Published in 2017 at "Energies"
DOI: 10.3390/en10050682
Abstract: In numerous applications, centrifugal compressors are required to provide a high pressure ratio with good efficiency while also working in a wide operating range. This is a challenge because as pressure ratio increases, efficiency and… read more here.
Keywords: pressure; compressor; range; pressure ratio ... See more keywords