The mobility of Cu, Pb and Zn in harbour sediments was investigated using single, sequential and kinetic extraction techniques. Each type of extraction provides different information on the mobility of these elements in the environment. The single HCl extraction assesses general mobility, the sequential extraction assesses geochemical partitioning and kinetic extraction allows quickly and slowl...

This work proposes a methodology for sleep stage classification based on two main approaches: the combination of features extracted from electroencephalogram (EEG) signal by different extraction methods, and the use of stacked sequential learning to incorporate predicted information from nearby sleep stages in the final classifier. The feature extraction methods used in this work include three ...

Volume 1 • Issue 3 • 2012 A wide range of techniques is available whereby various extraction reagents and experimental conditions are used. These techniques involve a 5step [8], 4step (BCR, Bureau Commune de Reference of the European Commission) and 6-step [13] extraction, and are thus becoming popular and adopted methods used for sequential extraction [14,15]. Several analytical methods have b...

This paper reports several intelligent diagnostic approaches for rotating machinery based on artificial intelligence methods and feature extraction of vibration signals. That is: the diagnosis method based on wavelet transform, rough sets and neural network; the diagnosis method based on sequential fuzzy inference; diagnosis approach by possibility theory and certainty factor model; the diagnos...

Sunlight provides energy for photosynthesis and help in synthesis of carbohydrates required for the regulation of plant development. Plant scientists are studying the role of light in plant development, in the biogenesis of chloroplast and in signalling between chloroplast and nucleus. The simple carbohydrates produced during photosynthesis are used as energy by plant for biosynthesis of primar...