Harmonic plus noise models have been successfully applied to a broad range of speech processing applications, including, among others, low bit-rate speech coding, and speech restoration and transformation. In conventional methods, the frequencies, the relative phases and the amplitudes of the pitch-harmonic components are assumed to be piecewise constants over an analysis frame. This assumption...

where φ is the magnetic flux distribution, he – the external magnetic field, γ – the external current and α ≥ 0 – the dissipation coefficient. Accounting of the second harmonic in the Fourierdecomposition of the Josephson current yealds the double sine-Gordon equation. The effect of the second harmonic contribution on the properties of magnetic flux in the long JJ model was numerically investig...

Recent measurements on high-order harmonic generation (HHG) from N2 aligned perpendicular to the driving laser polarization [B. K. McFarland el al, Science 322, 1232 (2008)] have shown a maximum at the rotational half-revival. This has been interpreted as the signature of the HHG contribution from the molecular orbital just below the highest occupied molecular orbital (HOMO). By using the recen...

We demonstrate second-harmonic generation in polymeric light-emitting diodes built in a layer structure of indium tin Ž . oxide, poly phenylene vinylene and aluminum. The second-harmonic intensity generated in the active zone of the diode depends quadratically on the applied reverse bias. In order to account for the bias dependence of the measured intensity a simple model is given in that the s...

Linear optics modifications in order to improve injection efficiency and for the installation of two IDs in one straight section demand an optimization of the sextupole correction scheme. Four harmonic sextupole families were sufficient with the earlier 8-fold symmetric lattice. Today there are ten families of harmonic sextupole magnets in addition to the three families of chromatic sextupoles....

This work is a contribution in the field of Operational Modal Analysis to identify the modal parameters of mechanical structures using only measured responses. The study deals with structural responses coupled with harmonic components amplitude and frequency modulated in a short range, a common combination for mechanical systems with engines and other rotating machines in operation. These harmo...

The sub-cycle dynamics of electrons driven by strong laser fields is central to the emerging field of attosecond science. We demonstrate how the dynamics can be probed through high-order harmonic generation, where different trajectories leading to the same harmonic order are initiated at different times, thereby probing different field strengths. We find large differences between the trajectori...

Recent measurements on high-order harmonic generation (HHG) from N 2 aligned perpendicular to the driving laser polarization (B K McFarland et al 2008 Science 322 1232) have shown a maximum at the rotational half-revival. This has been interpreted as the signature of the HHG contribution from the molecular orbital just below the highest occupied molecular orbital (HOMO). By using the recently d...

In non-central heavy ion collisions, identical two particle Hanbury-Brown/Twiss (HBT) correlations C(K,q) depend on the azimuthal direction of the pair momentum K. We investigate the consequences for a harmonic analysis of the corresponding HBT radius parameters R ij . Our discussion includes both, a model-independent analysis of these parameters in the Gaussian approximation, and the study of ...

Laser light incident on targets at intensities such that the electron dynamics is ultrarelativistic gives rise to a harmonic power spectrum extending to high orders and characterized by a relatively slow decay with the harmonic number m that follows a power law dependence, m(-p). Relativistic similarity theory predicts a universal value for p=8/3 up to some cutoff m=m*. The results presented in...