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Introduction
Ultrasound is increasingly used as an adjunct in the diagnosis of neuromuscular disease by measuring muscle thickness and echointensity (EI). Reproducibility is limited because of variations in scanning technique and proprietary algorithms that alter EI values.
Methods
We developed a standardized scanning protocol and a portable machine without any postimaging processing. Ten subjects...
In this paper, two weighted schemes have been investigated under double threshold (DTH) based cooperative spectrum sensing (CSS). Schemes are based on assigning weights to cognitive radio (CR) users such as: (i) weighting as per sensing channel preference and (ii) weighting as per the value of decision statistic is evaluated. The performance is investigated under two different sensing channels namely...
This paper presents a new physics-based method for reliability prediction and modeling of Integrated Circuits (ICs). By implementing transistor degradation mechanisms via differential equations in the transistor compact model, the aging of the circuit can be simulated over (accelerated) time under real conditions. Actually, each transistor in the circuit integrates the voltage, current and temperature...
The reliability of InP/GaAsSb/InP DHBTs designed for very high-speed ICs applications is studied after storage accelerated aging tests performed up to 2000 hours at ambient temperatures of 180, 210 and 240°C. The HiCuM model was used for modelling DC electrical characteristics measured during aging tests. The signature of the major degradation mechanism points out an evolution of the emitter access...
This paper provides a probabilistic characterization of the stress index B2 which can be used for developing reliability-based design guidelines for nuclear bend pipes. The design equations for pipe bends involve stress indices (B1 and B2) that are used to modify the stress parameters used for straight pipes. These indices allow a designer to use the same basic stress limits as for a straight pipe...
Electricity markets that have adopted nodal locational marginal pricing schemes decompose prices into three components. These components relate to generation, congestion and losses. The usual scheme of pricing follows the mandate that when the market clears, every node is assigned the same value for the generation component. And so it follows that the difference in price across any pair of nodes is...
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