Recently, several new metaheuristic schemes have been introduced in the literature.Although all these approaches consider very different phenomena as metaphors, the search patterns used to explore the search space are very similar.On the other hand, second-order systems are models that present different temporal behaviors depending on the value of
An Sushi Mats ambient modal framework for inertia estimation using synchrophasor data is proposed in this letter.Specifically, an analytical formulation is developed for the estimation of inertia based on the frequency and damping ratio modes extracted from ambient data.An advantage of the proposed framework is that it can rely on synchronized ambi
The paper aimed to ascertain the possibility of using the chemometric (discriminant) method when analyzing the results of mid-range IR spectroscopy and gas chromatography-mass spectrometry for a comparative study of heroin to establish a common source of origin.The advantage of this method of comparative research in comparison to PUMPS the existing
Sclerocarya birrea is a tree indigenous to Southern Africa with significant importance in rural livelihoods for food, medicine, and carving.The bark, which contains 10–20% tannin, provides several pharmacological benefits as an antidiabetic, anti-inflammatory, antimicrobial, anti-atherogenic, and antioxidant medication, among others.This stud
BackgroundThis paper is aimed to (i) develop an innovative classification of COPD, multi-dimensional phenotype, based on a multidimensional assessment; (ii) describe the identified multi-dimensional phenotypes.MethodsAn exploratory factor analysis to identify the main classificatory variables and, then, a cluster analysis based on these variables w