bstract-Cardiovascular response to running exercise was studied ith a simple pulsatile cardiovascular model. Published perimental data during graded exercise were used to tune the odel parameters. Study results show that cardiac output is odulated by rhythmic muscle contractions during running. It cillates when step rate and heart rate are not synchronised but abilises when they are synchronise...

Efficient physical models of bar percussion instruments which preserve spatial sampling are not yet available. In this paper, banded waveguides are proposed as an efficient method for simulating the physics of bars including spatial sampling. In addition two other models are investigated. One is a generalization of the waveguide idea replacing unit delays by all-pass filters modeling the phase ...

There is clear difference in each fiber-optic link’s power output, in the large scale optically controlled phased array antenna. In order to realize the optical power balance and control between the various channels, the equilibrium or control power of each optical signal needs to be considered, and it will reduce the optical beam forming network generated side-lobe beam, which results in the p...

We report ultraslow group velocities of light in a solid. Light speeds as slow as 45 m/s were observed, corresponding to a group delay of 66 μs in a 3-mm thick crystal. Reduction of the group velocity is accomplished by using a sharp spectral feature in absorption and dispersion, produced by a Raman excited spin coherence in an optically dense Pr doped Y2SiO5 crystal. PACS numbers: 42.50.-p, 42...

The use of the phase-delay improves substantially the accuracy obtained in VLBI astrometry with respect to the group-delay observable. Recently, Ros et al. (1999) have extended the related phase-connection technique to a triangle of radio sources with relative separations up to 6.8◦ (the S5 sources BL 1803+784/QSO 1928+738/BL 2007+777). This technique has also been extended for separations up t...

The present work proposed an approach to characterize the word-final glottal stops in Mizo and Assam Sora language. Generally, glottal stops have more strong glottal and ventricular constriction at the coda position than at the onset. However, the primary source characteristics of glottal stops are irregular glottal cycles, abrupt glottal closing, and reduced open cycle. These changes will not ...

The apodization function plays an important role in the behavior of the mean dispersion, group delay and significant reduction of sidelobe level in reflection spectrum. On the other hand, the grating length represents as one of the critical parameters in contributing to a high performance fiber Bragg grating compensator. In this paper, we have investigated and compared the performances of vario...

Glottal closure instants (GCIs) are characterized by a strong negative valley in the speech signal and an abrupt change in the amplitude. In this paper, an algorithm that exploits these two properties of a GCI is proposed to estimate the location of GCIs, specifically from telephone speech. The algorithm considers a symmetrized voiced segment as the Fourier transform of an even signal. In such ...

The leaky integrator, the basis for many neuronal models, possesses a negative group delay when a time-delayed recurrent inhibition is added to it. By means of this delay, the leaky integrator becomes a predictor for some frequency components of the input signal. The prediction properties are derived analytically, and an application to a local field potential is provided.

In this paper we present a new vibrato and tremolo suppression technique for onset detection. It weights the differences of the magnitude spectrogram used for the calculation of the spectral flux onset detection function on the basis of the local group delay information. With this weighting technique applied, the onset detection function is able to reliably distinguish between genuine onsets an...