In this paper, the oscillometric waveform measured by automatic non-invasive blood pressure meters (NIBP) is analyzed by transforming the data from the time domain to the frequency domain. The signal’s spectrum of the oscillometric waveform is in current literature badly understood or explored. The only known link between the oscillometric waveform and the blood pressure is the maximum of the o...

Reasonable texture area density can effectively form continuous oil film and improve the surface tribological properties. The combination of friction experiment simulation analysis studied influence sinusoidal on performance, also discussed its retention behavior. experimental results show that synergistic lubrication has a significant positive correlation with Moreover, it is noticed propertie...

This paper outlines a novel approximate solution for determining the pressure drop of laminar, single-phase flow in slowly-varying microchannels of arbitrary cross-section. The proposed analysis is general and applicable to symmetric and asymmetric microchannel cross-sections, as examples compact relationships are reported for elliptical and rectangular shapes for three common wall profiles of ...

Animals employ mechano-sensory systems to detect and explore their environment. Mechano-sensation encompasses stimuli such as constant pressure, surface movement or vibrations at various intensities that need to be segregated in the central nervous system. Besides different receptor structures, sensory filtering via intrinsic response properties could provide a convenient way to solve this prob...

In this appendix, we list the expressions that characterize the response of an elastic-perfectly plastic solid with sinusoidal roughness to indentation by a rigid flat punch. The substrate is an elastic-perfectly plastic solid with Young’s modulus E, Poisson’s ratio ν and yield stress Y σ . The surface roughness has wavelength n λ and amplitude n g . In terms of these parameters, we define a ma...

BACKGROUND GPBAR1 is a bile acids activated receptor expressed in entero-hepatic tissues. In the liver expression of GPBAR1 is restricted to sinusoidal and Kuppfer cells. In the systemic circulation vasodilation caused by GPBAR1 agonists is abrogated by inhibition of cystathione-γ-liase (CSE), an enzyme essential to the generation of hydrogen sulfide (H2S), a vasodilatory agent. Portal BAR501 i...

This paper presents a multicomponent sinusoidal model of speech signals, obtained through a rigorous mathematical formulation that ensures an asymptotically exact reconstruction of these nonstationary signals, despite the presence of transients, voiced segments, or unvoiced segments. This result has been obtained by means of the iterated use of the Hilbert transform, and the convergence propert...

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 ...

Non-cirrhotic portal hypertension (NCPH) is a poorly understood condition attributed to various causes in the absence of liver cirrhosis. One important and rare conditions leading NCPH myeloproliferative neoplasms blood coagulation abnormalities, which infiltrate cells stasis raised sinusoidal pressure. We present case 40-year-old male who presented our emergency department with complaints hema...