Results 11 to 20 of about 41,682 (296)

High-frequency A-type pulsators discovered using SuperWASP★† [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
19 pages, 26 figures, accepted for publication in ...
Holdsworth, Daniel L.   +20 more
openaire   +7 more sources

Experimental Study and Conjugate Heat Transfer Simulation of Pulsating Flow in Straight and 90° Curved Square Pipes

open access: yesEnergies, 2021
The turbulent pulsating flow and heat transfer in straight and 90° curved square pipes are investigated in this study. Both experimental temperature field measurements at the cross-sections of the pipes and conjugate heat transfer (CHT) simulation were ...
Guanming Guo   +9 more
doaj   +1 more source

Parametric study of the flow characteristics and heat transfer from circular intermittent jet impinging on a concave surface [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2021
The main purpose of the current work is the analysis of the pulsating effect on the flow and heat transfer from impinging jet on a concave surface. In this way, the heat flux of 2300 W/m2 has been applied constantly on the surface with the radius of ...
Mehran Rajabi Zargarabadi   +2 more
doaj   +1 more source

Observational Properties of 155 O- and B-type Massive Pulsating Stars

open access: yesThe Astrophysical Journal Supplement Series, 2023
O- and B-type (OB-type) pulsating stars are important objects for studying the structure and evolution of massive stars through asteroseismology. A large amount of data from various sky surveys provides an unprecedented opportunity to search for and ...
Xiang-dong Shi   +5 more
doaj   +1 more source

Special‐angle‐based signal injection sensorless control of IPMSM for suppressing multiple zero‐crossings of phase current

open access: yesIET Power Electronics, 2023
Pulsating high‐frequency signal injection has the problem of multiple zero‐crossings when the phase current crosses zero‐point, which deteriorates the distortion of high‐frequency current caused by the zero‐current‐clamping effect.
Lisi Tian   +4 more
doaj   +1 more source

Solar pulsational stability - II. Pulsation frequencies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1992
The processes that damp solar pulsations also influence pulsation frequencies. This creates deviations from frequencies computed assuming adiabatic motion without turbulent stress and is one possible reason why the observed frequencies of the five-minute oscillations do not agree with theoretical eigenfrequencies.
openaire   +1 more source

Fluctuation and extinction of laminar diffusion flame induced by external acoustic wave and source

open access: yesScientific Reports, 2021
Acoustic wave can destabilize the flame and has a potential in firefighting, but the influences of the sound source and its frequency are still poorly understood.
Caiyi Xiong   +4 more
doaj   +1 more source

FM stars: A Fourier view of pulsating binary stars, a new technique for measuring radial velocities photometrically [PDF]

open access: yes, 2012
Some pulsating stars are good clocks. When they are found in binary stars, the frequencies of their luminosity variations are modulated by the Doppler effect caused by orbital motion.
Kurtz, Donald W., Shibahashi, Hiromoto
core   +2 more sources

CoRoT's view of newly discovered B-star pulsators: results for 358 candidate B pulsators from the initial run's exoplanet field data [PDF]

open access: yes, 2009
We search for new variable B-type pulsators in the CoRoT data assembled primarily for planet detection, as part of CoRoT's Additional Programme. We aim to explore the properties of newly discovered B-type pulsators from the uninterrupted CoRoT space ...
A. Baglin   +63 more
core   +6 more sources

A unifying explanation of complex frequency spectra of gamma Dor, SPB and Be stars: combination frequencies and highly non-sinusoidal light curves [PDF]

open access: yes, 2015
There are many Slowly Pulsating B (SPB) stars and γ Dor stars in the Kepler mission data set. The light curves of these pulsating stars have been classified phenomenologically into stars with symmetric light curves and with asymmetric light curves.
Bedding, T. R.   +4 more
core   +3 more sources

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