Radial modes of laterally stiffened piezoelectric disc transducers for ultrasonic collimated beam generation
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DOI: 10.1016/j.wavemoti.2017.07.005
Abstract: Abstract We numerically investigate the resonance and vibration characteristics of radial modes of laterally stiffened piezoelectric disc transducers. Lateral stiffening is modelled using a spring and vibration characteristics of the piezo-disc are investigated with increasing… read more here.
Keywords: stiffened piezoelectric; laterally stiffened; modes laterally; disc ... See more keywords
Frequency analysis of δ Scuti stars towards the Galactic bulge
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DOI: 10.1093/mnras/stab3555
Abstract: We have performed a frequency analysis of 10,092 δ Scuti-type stars detected in the fourth phase of the Optical Gravitational Lensing Experiment (OGLE) towards the Galactic bulge, which is the most numerous homogeneous sample of δ Scuti… read more here.
Keywords: scuti; scuti stars; galactic bulge; radial modes ... See more keywords
Radial modes of levitating atmospheres around Eddington luminosity neutron stars
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DOI: 10.1093/mnras/stx2140
Abstract: We consider an optically thin radiation-supported levitating atmosphere suspended well above the stellar surface, as discussed recently in the Schwarzschild metric for a star of luminosity close to the Eddington value. Assuming the atmosphere to… read more here.
Keywords: modes levitating; atmospheres around; luminosity; levitating atmospheres ... See more keywords