To overcome the problems of coverage blind areas and coverage redundancy when sensor nodes are deployed randomly in heterogeneous wireless sensor networks (HWSNs).An optimal coverage method for HWSNs based on an improved social spider optimization (SSO) algorithm is proposed, which can reduce the energy consumption and improve the network coverage.
Clypeasteroid echinoids are widespread and abundant within Miocene sedimentary sequences of the Mediterranean area within both siliciclastic and carbonate deposits.Herein, three clypeasteroid-dominated echinoid assemblages from the mixed siliciclastic-carbonate succession of the Mores Formation (lower Miocene) cropping out within the Porto Torres B
Considerable concentrations of vehicular emissions at signalized intersections and streets, in urban area are health-related issues of concern to society in general.This paper presents an examination for the effect of vehicle driver behaviour on vehicular excess CO emissions.The examination process based on site observations.in Decorative Pillow Er
Background: Nutritional screening, intervention and assessment in patients with undernutrition are key components of any nutritional care.The goal of any nutritional assessment is to determine the specific nutritional risk(s).Presently, there are no guidelines on any ideal screening tool to be used on admission for identification of children that a
Usually, the origin of a within-cohort bimodal size distribution is assumed to be caused by initial size differences or by one discrete period of accelerated growth for one part of the population.The aim Work Training western of this study was to determine if more continuous pathways exist allowing shifts from the small to the large fraction within