Results 1 to 10 of about 36,886 (148)
The analysis of flow stability in a vortex furance model [PDF]
MATEC Web of Conferences, 2017 Results of experimental study of the pulsation characteristics of a flow in isothermal model of vortex furnace with vertically oriented nozzles of secondary blast are obtained.
Anufriev Igor S. +3 more
doaj +2 more sources
Sleep deprivation and sleep intensity exert distinct effects on cerebral vasomotion and brain pulsations driven by the respiratory and cardiac cycles. [PDF]
PLoS BiologyThe flow of cerebrospinal fluid (CSF) through the brain is driven by cerebral vasomotion, along with respiratory and cardiac forces. Growing evidence suggests that sleep facilitates this flow, yet the role of homeostatic sleep mechanisms remains largely ...
Sara Marie Ulv Larsen +11 more
doaj +2 more sources
Arterial pulsations and transmantle pressure synergetically drive glymphatic flow [PDF]
Scientific ReportsClearance of waste material from the brain by the glymphatic system results from net flow of cerebrospinal fluid (CSF) through perivascular spaces surrounding veins and arteries.
Guillermo L. Nozaleda +3 more
doaj +2 more sources
Experimental evaluation of the influence of crankshaft rotation frequency on the amplitude of pressure pulsations in gas communications of low-flow reciprocating compressors [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022 The presence of gas pressure pulsations in the suction and discharge pipes of reciprocating compressors is associated with their periodic connection and disconnection from the working chamber during the operation of self-acting valves. The present work
S. S. Busarov +4 more
doaj +1 more source
Unsteady Pressure Pulsations in Pumps—A Review
Energies, 2022 Unsteady pressure-pulsation-induced severe vibration and high alternating stress can cause some unexpected results, including impeller crack and structural damage of the entire pumping system.
Ning Zhang +4 more
doaj +1 more source
Energies, 2022 The present paper demonstrates a proof-of-concept by introducing a variable guide vane system in the draft tube of a high-head Francis model turbine. The aim is to examine the hydraulic performance of the turbine while mitigating the pressure pulsations ...
Jesline Joy +2 more
doaj +1 more source
AIP Advances, 2021 Suppression of low-frequency pressure pulsations using vortex generators at the jet nozzle is investigated for a large low-speed open jet wind tunnel.
Ling Jin +4 more
doaj +1 more source
The influence of spinal venous blood pressure on cerebrospinal fluid pressure
Scientific Reports, 2023 In Alligator mississippiensis the spinal dura is surrounded by a venous sinus; pressure waves can propagate in the spinal venous blood, and these spinal venous pressures can be transmitted to the spinal cerebrospinal fluid (CSF).
Z. Taylor +3 more
doaj +1 more source
Calculation of Pressure Pulsations in the Flow Part of the First Stage of an Axial Turbine in the Rotor-Stator Interaction Zone [PDF]
E3S Web of Conferences, 2021 A serious problem in the development of reusable liquid-propellant rocket engines (LRE) is the provision of a high resource and reliability of gas turbines of turbopump, which supply fuel to the combustion chamber.
Timushev S. F., Kondratov A. V.
doaj +1 more source
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022 LLC SPC Teplofizika, developing low-emission combustion chambers with premixing of fuel for ground application gas turbine installations, investigates the problems associated with the occurrence of pressure pulsations in the combustion chambers, as well ...
D. V. Skiba +3 more
doaj +1 more source