The question of fit of harmonics to a sinusoidal model is important for quality coding of musical sounds. By characterizing phase relations among the harmonics, a separation of the harmonics into sinusoidal and non-sinusoidal parts is performed. Applying polyspectral analysis we show that sinusoidality is closely related to frequency but not to phase coupling. We present a bispectral algorithm ...

Reduced sinusoidal endothelial nitric oxide (NO) production contributes to increased intrahepatic resistance and portal hypertension after liver injury. We hypothesized that V-PYRRO/NO, an NO donor prodrug metabolized "specifically" in the liver, would reduce portal venous pressure (PVP) without affecting the systemic vasculature. Liver injury was induced in male BALB/c mice by weekly CCl(4) ga...

The localized presence of the hematopoietic tissue within the protected confines of the bones provides clues to the regulatory interdependence of bone and marrow beyond the obvious advantage to the marrow: a well-shielded location from which it can produce an estimated 500 billion cells per day (16, 59). The bone marrow can be subdivided into a hematopoietic cell compartment and the stroma, whi...

Castellated beams are generally provided with hexagonal and circular openings in the web portion. However, in view of structural applications, appropriate size and shape of openings in web are always a major issue of concern. Research work carried out in optimizing sizes of castellated beam with hexagonal openings have reported that castellated beams fail mainly by local failure modes and stres...

We demonstrate numerically that photonic crystal dye-sensitized solar cells (DSSCs) can provide at least a factor of one-third enhancement in solar light absorption and power conversion efficiency relative to their conventional counterparts. Our design consists of a lattice of modulated-diameter TiO2 nanotubes filled with TiO2 nanoparticles and interstitial regions filled with electrolyte. This...

This paper addresses the problem of signal characterization in terms of sinusoidal and non-sinusoidal components. A first measure of sinusoidality is reviewed. Drawbacks of this sinusoidal estimator are investigated and solutions proposed. Estimation of sinusoidality on non-stationary signal is then made on a pre-processed signal. A phase derived sinusoidality measure and the use of Re-estimate...

2 Sinusoids 9 2-1 Tuning-Fork Experiment . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2-2 Review of Sine and Cosine Functions . . . . . . . . . . . . . . . . . . . . 12 2-3 Sinusoidal Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2-3.1 Relation of Frequency to Period . . . . . . . . . . . . . . . . . . . 15 2-3.2 Phase and Time Shift . . . . . . . . . . . . ...

In this work we investigate aperiodicities that occur in the sustained portion of a sound due to phase synchronous versus unsynchronous deviations of the partials. By using an additive sinusoidal model, correlation statistics and phase coupling eeects are considered for various instruments. The phase coupling is shown to be an important characteristic of musical instrument. These analyses are c...

HMM based speech synthesis, where speech parameters are generated directly from HMM models, is a new technique relative to other speech synthesis techniques. In this paper, we propose some modifications to the basic system to improve its quality. We apply a multi-band excitation model. And we use samples extracted from the spectral envelop as spectral parameters. In the synthesis, the voiced an...

Subjects were presented with pairs of tactile drifting sinusoids and made speed discrimination judgments. On some trials, a visual drifting sinusoid, which subjects were instructed to ignore, was presented simultaneously with one of the two tactile stimuli. When the visual and tactile gratings drifted in the same direction (i.e., from left to right), the visual distractors were found to increas...