Sunspots are known to be strong absorbers of solar oscillation modal power. The most convincing way demonstrate this is done via Fourier-Hankel decomposition (FHD), where the local field separated into in- and outgoing waves, showing reduction in Due Helioseismic Magnetic Imager's high-cadence Doppler measurements, power absorption can investigated at frequencies beyond acoustic cutoff frequenc...

Additionally, experiments comparing voice qualities were performed using vowels synthesized using averaged F0s, fluctuation-reduced F0s obtained using highor low-pass filters, and the original F0s with fine fluctuations, to determine which frequency bands of the F0 fluctuations were significant for perceiving voice quality of each group. The experiment results were analyzed using a multidimensi...

a r t i c l e i n f o Keywords: Remote sensing High frequency radar Coastal processes Instrumentation High frequency (HF) radar has become an important tool for remotely mapping the spatial distribution and temporal evolution of waves and currents of the nearshore coastal ocean. Its acceptance along ocean coasts has resulted in the development of several commercially available systems and a pla...

A large sample of about two hundred pulsars have been observed to study their subpulse modulation at an observing wavelength of (when achievable) both 21 and 92 cm using the Westerbork Synthesis Radio Telescope. For 57 pulsars drifting subpulses are discovered for the first time and are confirmed for many others. This leads to the conclusion that it could well be that the drifting subpulse mech...

The ballistocardiograms of young normal subjects as recorded with a wide frequency range technic are described. These records contain high frequency forces not previously described. An analysis of these components in terms of known cardiovascular events strongly suggests that they have definite dynamic significance. In addition, these correlations offer evidence as to the genesis of some forces...

Degenerative changes in the intervertebral discs have been recognized by pathologists for a considerable time. They were described by Wenzel (1842) and were also studied by Rokitanski (1855) and by many other pathologists. Extensive studies by Schmorl (1929), begun in Dresden in 1925 on routine autopsy material, revealed the great frequency of degenerative changes in the intervertebral discs an...