Results 1 to 10 of about 2,248,909 (304)

Investigation of the Pressure Gain Characteristics and Cycle Performance in Gas Turbines Based on Interstage Bleeding Rotating Detonation Combustion [PDF]

open access: yesEntropy, 2019
To further improve the cycle performance of gas turbines, a gas turbine cycle model based on interstage bleeding rotating detonation combustion was established using methane as fuel.
Lei Qi   +5 more
doaj   +2 more sources

Determining the Pressure Gain of Pressure Gain Combustion [PDF]

open access: yes2018 Joint Propulsion Conference, 2018
Over the past few decades, there has been significant research into propulsion concepts attempting to employ pressure gain combustion. Pressure gain combustion concepts to date have resulted in dynamic, non-uniform gas flows which are difficult to ...
Paxson D.E.   +6 more
core   +4 more sources

Pressure-induced structural change in liquid GaIn eutectic alloy [PDF]

open access: yesScientific Reports, 2017
Synchrotron x-ray diffraction reveals a pressure induced crystallization at about 3.4 GPa and a polymorphic transition near 10.3 GPa when compressed a liquid GaIn eutectic alloy up to ~13 GPa at room temperature in a diamond anvil cell.
Q. Yu   +10 more
doaj   +5 more sources

An alternative architecture of the Humphrey cycle and the effect of fuel type on its efficiency

open access: yesEnergy Science & Engineering, 2020
Conventional gas turbines are a very mature technology, and performance improvements are becoming increasingly difficult and costly to achieve. Pressure‐gain combustion (PGC) has emerged as a promising technology in this respect, due to the higher ...
Panagiotis Stathopoulos
doaj   +2 more sources

Experimental Pressure Gain Analysis of Pulsed Detonation Engine

open access: yesAerospace
A pulsed detonation chamber (PDC) equipped with Hartmann–Sprenger resonators has been designed and tested for both Hydrogen/air and Hydrogen/Oxygen mixtures.
Alina Bogoi   +5 more
doaj   +3 more sources

Research on the influence of prenatal exercises on anthropometric and vascular parameters in pregnant women [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2022
Introduction/Objective. The frequency of a sedentary lifestyle during pregnancy increases. This contributes to gestational weight gain and has a negative impact on health.
Bojanić Vlatka   +3 more
doaj   +1 more source

Tempus Fugit: Time Pressure in Risky Decisions [PDF]

open access: yes, 2011
We study the effects of time pressure on risky decisions for pure gain prospects, pure loss prospects, and mixed prospects involving both gains and losses.
Kocher, Martin G.   +2 more
core   +5 more sources

Weight Gain–Induced Blood Pressure Elevation [PDF]

open access: yesHypertension, 2000
Abstract —This study was conducted to evaluate the mechanisms in weight gain–induced blood pressure (BP) elevation focusing, in particular, on the contributions of sympathetic nervous system activity, fasting plasma insulin, and leptin to BP levels. The study design was longitudinal with a cohort of 1897 men.
K, Masuo   +3 more
openaire   +2 more sources

The Rayleigh Efficiency of Pressure Gain Combustors [PDF]

open access: yes54th AIAA Aerospace Sciences Meeting, 2016
This paper describes a new method for calculating the performance of pressure gain combustors for gas turbine applications. The method judges the value of a combustor based on the flow’s increased potential to do shaft work from combustor inlet to exit.
Robert J. Blackburn, Rob Miller
openaire   +3 more sources

Gain-induced oscillations in blood pressure [PDF]

open access: yesJournal of Mathematical Biology, 1998
"Mayer waves" are long-period (6 to 12 seconds) oscillations in arterial blood pressure, which have been observed and studied for more than 100 years in the cardiovascular system of humans and other mammals. A mathematical model of the human cardiovascular system is presented, incorporating parameters relevantto the onset of Mayer waves.
Abbiw-Jackson, Roselyn M.   +1 more
openaire   +3 more sources

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