Results 231 to 240 of about 47,415 (268)

Evaluation of Pressure Oscillator Losses

AIP Conference Proceedings, 2006
Efficiencies of regenerative cryocoolers are influenced by losses within the pressure oscillator (Stirling‐type compressor). An evaluation of these losses is important when searching for ways to improve the overall cryocooler efficiency. Typically, compressor efficiency is taken as the ratio of PV power of the piston(s) to electrical input power.
openaire   +1 more source

Spontaneous blood pressure oscillations and cerebral autoregulation

Clinical Autonomic Research, 1998
The relationship between spontaneous oscillations in cerebral blood flow velocity (CBFV) and arterial blood pressure (ABP) was analysed in normal subjects in order to evaluate whether these relationships provide information about cerebral autoregulation.
R R, Diehl, D, Linden, D, Lücke, P, Berlit   +3 more
openaire   +2 more sources

A pressure-sensitive oscillator for neuromorphic applications

2022 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2022
Bharath Kumar Singh Muralidhar, Rafael Ashkrizzadeh, Hermann Kohlstedt, Adrian Petraru, Robert Rieger   +4 more
openaire   +1 more source

Oscillations of cerebrospinal fluid pressure in nonhydrocephalic persons

Neurological Research, 1997
Spontaneous cerebrospinal fluid (CSF) pressure oscillations with a wavelength of 0.5-2/min (B-waves) are used as a criterion for shunt insertion in hydrocephalic patients. We describe CSF pressure oscillations in two nonhydrocephalic patients with normal baseline CSF pressure.
D W, Droste, J K, Krauss
openaire   +2 more sources

Pressure Oscillations in P230 SRM: Numerical Simulation

42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006
[Abstract] In the present work a numerical study of pressure oscillation frequencies and amplitudes in Ariane 5 MPS P230 boosters will be presented. The study has been conducted by means a commercial CFD package. Validation of the adopted approach has been made on the basis of a cold flow test case.
M. TELARA, F. PAGLIA, STELLA, Fulvio, GIANGI, Marilena   +3 more
openaire   +2 more sources

Pressure oscillations and fallout downdraughts

Quarterly Journal of the Royal Meteorological Society, 1962
AbstractThe generation of widespread pressure oscillations in southern Australia on 26–27 January 1960 is examined in some detail, by means of available barograms, and spectral analysis of a Melbourne Dines microbarogram. Photographs of mamma cloud taken at Adelaide give some insight into the processes at work producing both cloud form and oscillations.
openaire   +1 more source

Oscillation of intracranial pressure and sleep

Clinical Neurology and Neurosurgery, 1986
H, Ueno, K, Shima, H, Chigasaki, S, Ishii   +3 more
openaire   +2 more sources

Experimental and theoretical study on the association between entrainment vortex evolution and pressure oscillation of steam jet condensation

Experimental Thermal and Fluid Science, 2023
Junjie Yan, Daotong Chong, Pengfei Fu
exaly  

Experimental investigation on pressure oscillation induced by steam lateral injection into water flow in a horizontal pipe

International Journal of Heat and Mass Transfer, 2020
Tao Lu, Zhuohua Zhang
exaly  

Study on pressure oscillation characteristics in a constant volume bomb

Combustion and Flame, 2021
Erjiang Hu, Zuohua Huang, Jinfeng Ku
exaly