The frequency domain is described in terms of attenuation relative to this normalized frequency.
Particle velocity data collected on the M20 particle velocimeter corresponded somewhat to sound pressure data collected on the DMON acoustic recorder in terms of attenuation with distance, but there was considerable variability.
In particular, we present the different POF materials (such as PMMA, perfluorinated polymers, etc)., types (such as SI-POF, GI-POF), and production processes, describing the resulting optical characteristics in terms of attenuation, dispersion, and bandwidth.
After 4 weeks of streptozotocin and Cholesterol rich diet administration, vascular endothelium dysfunction was assessed, in terms of attenuation of acetylcholine-induced, endothelium-dependent relaxation (Isolated Aortic Ring Preparation), a decrease in serum nitrate/nitrite level, as well as mRNA expression of eNOS (rtPCR) and disruption of integrity of vascular endothelium (Electron microscopy).
After four weeks of l-methionine administration, vascular endothelium dysfunction was assessed in terms of attenuation of acetylcholine-induced endothelium dependent relaxation (Isolated aortic ring preparation), a decrease in serum nitrite level, mRNA expression of eNOS (rtPCR) and disruption of integrity of vascular endothelium (Electron microscopy).
In order to simulate a bad channel in terms of attenuation experienced by the MSs, a SNR of 5 dB is used in (12), in all experiments.
In terms of attention, selective attenuation or enhancement is often considered as a gating mechanism.
In this study, the Lamb mode attenuation constants were derived in terms of the attenuation coefficient, group velocity and central frequency of excitation of the Lamb mode, using the Rayleigh damping model.
Although researchers considered vegetation as a soft obstacle in terms of total attenuation, actual measurements show that trees or shrubs could induce important attenuations.
TLM numerical predictions expressed in terms of excess attenuation relative to free field show a good agreement with analytical solutions.
