Results 51 to 60 of about 54,360 (305)

The coupling between pulsation and mass loss in massive stars

, 2007
To what extent can pulsational instabilities resolve the mass-loss problem of massive stars? How important is pulsation in structuring and modulating the winds of these stars?
Christopher A. Tout, Guenter Houdek, Rebecca G. Martin, Rich Townsend, Richard J. Stancliffe   +4 more
core   +1 more source

Passive pressure pulsation damping using shaped nozzles [PDF]

Scientific Letters of Rzeszow University of Technology - Mechanics, 2014
Pressure pulsations in intake and outlet systems of positive-displacement compressors are one of the most important problems in compressed gas pipelines. This problem occurs not only in huge compressed systems, such as the natural gas piping in gas mines or national gas transport systems, but also in small refrigeration compressors in domestic ...
Piotr Cyklis, Przemysław Młynarczyk
openaire   +1 more source

Location‐Specific Hematoma Volume Predicts Early Neurological Deterioration in Supratentorial ICH

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Early neurological deterioration (END) adversely affects outcomes in patients with intracerebral hemorrhage (ICH). This study aimed to determine the location‐specific hematoma volumes for END in supratentorial ICH patients. Methods We retrospectively analyzed supratentorial ICH patients presenting from two prospective cohorts.
Zuoqiao Li, Guilin Meng, Zijie Wang, Xiao Hu, Jing Cheng, Chu Chen, Tiannan Yang, Jiaxin Luo, Zizhen Meng, Xueyun Liu, Qi Li   +10 more
wiley   +1 more source

Research on non-uniform pressure pulsation of the diffuser in a nuclear reactor coolant pump

Nuclear Engineering and Technology, 2021
The nuclear reactor coolant pump transferring heat energy inherently brings with it the unsteady flow and inevitably threatens to the safe operation of the pump unit, especially with the pressure pulsation induced by the rotor-stator interaction. In this
Qiang Zhou, Hongkun Li, Lin Pei, Zuowen Zhong   +3 more
doaj   +1 more source

Severe aortic regurgitation due to endocarditis in a horse [PDF]

, 2011
A 4-year-old Belgian Warmblood mare was presented because of fever, exercise intolerance, a loud diastolic cardiac murmur and a remarkable bounding pulsation that was palpable all over the body.
Afonso, Tiago, Saey, Veronique, Sys, Stanislas, van Loon, Gunther, Verheyen, Tinne   +4 more
core  

Asteroseismology

, 2012
Asteroseismology is the determination of the interior structures of stars by using their oscillations as seismic waves. Simple explanations of the astrophysical background and some basic theoretical considerations needed in this rapidly evolving field ...
A Baglin, A Gautschy, A Miglio, A Mukadam, AA Pamyatnykh, AB Kaye, AJ Brickhill, AU Landolt, B Mosser, C Aerts, C Aerts, C Waelkens, C Waelkens, D Kilkenny, DE Mkrtichian, DE Winget, DE Winget, DE Winget, DE Winget, DO Gough, DR Reese, DW Kurtz, DW Kurtz, DW Kurtz, EB Frost, EL Robinson, EM Green, F-L Deubner, G Handler, G Handler, G Handler, G Handler, G Maeder, G Torres, G Walker, H Bruntt, H Kjeldsen, H Saio, J Christensen-Dalsgaard, J Christensen-Dalsgaard, J Daszyńska-Daszkiewicz, J Daszyńska-Daszkiewicz, J Daszyńska-Daszkiewicz, J Goodricke, J Ridder De, J-P Montagner, JH Telting, JH Telting, JP Cox, JR Percy, L Eyer, LL Kiss, M Aizenman, M Asplund, M Suran, M Tassoul, M-A Dupret, MD Reed, MH Montgomery, MH Montgomery, N Baker, P Brassard, P Dufour, PA Woudt, PW Jones, R Samadi, RD Watson, RE Nather, RE Nather, RL Gilliland, S Frandsen, S Hekker, S Rosseland, S Talon, SO Kepler, SS Vogt, T Kallinger, TR Bedding, TR Bedding, TS Metcalfe, TS Metcalfe, WA Dziembowski, WA Dziembowski, WA Dziembowski, WA Dziembowski, WD Pesnell, WJ Chaplin, WW Campbell   +87 more
core   +1 more source

Evidence for "Propeller" Effects In X-ray Pulsars GX 1+4 And GROJ1744-28 [PDF]

, 1997
We present observational evidence for "propeller" effects in two X-ray pulsars, GX 1+4 and GROJ1744-28. Both sources were monitored regularly by the Rossi X-ray Timing Explorer (RXTE) throughout a decaying period in the X-ray brightness. Quite remarkably,
Arons J., Basko M. M., Illarionov A. F., Pringle R. E., Wei Cui   +4 more
core   +2 more sources

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source

Experimental study of pressure pulsation in a large-scale hydropower plant with Francis turbine units and a common penstock

Energy Conversion and Management: X, 2022
As a limiting factor in power generation, especially in part-loads, turbulence is considered an important phenomenon in hydropower plants. In this study, the pressure pulsation measurements are done for Darian Hydropower Plant in Iran, which is composed ...
Reza Jamali, Ali Sohani, Khosro Hemmatpour, Mohammadali Behrang, Amin Ghobeity   +4 more
doaj   +1 more source

Pulsational frequency and amplitude modulation in the δ Sct star KIC 7106205 [PDF]

, 2014
Analysis of the Kepler δ Sct star KIC 7106205 showed amplitude modulation in a single pressure mode, whilst all other pressure and gravity modes remained stable in amplitude and phase over the 1470 d length of the data set.
Bowman, Dominic, Kurtz, Donald Wayne
core   +2 more sources