Natural disasters nearly always catch societies by surprise, even though in hindsight historians invariably conclude that being caught off-guard in this way was in fact unfounded as both the existence of the natural hazard which caused the disaster, and the societal conditions making communities vulnerable to the hazard, were clearly present before
The 3,000 oil/gas structures currently deployed in the northern Gulf of Mexico (GOM) provide hard substratum for marine organisms in a region where such has been rare since the Holocene.The major exception to this are the Flower Garden Banks (FGB).Corals are known to have colonized oil/gas platforms around the FGB, facilitating biogeographic expans
The Distance Vector Hop (DV-HOP) localization algorithm, as a non ranging node localization algorithm, its operation is simple, does not require additional measurement equipment support, with low cost.But wireless sensor network is generally used in three-dimensional complex environment.In response to the low positioning accuracy of this algorithm
The purpose of this work Worktop Refrigerators is to determine the influence of the optical characteristics of a thin multilayer solar sail on its orbital motion.First of all, the influence of the coefficients of reflection, scattering and absorption is investigated.These coefficients are computed on the basis of a mathematical model of the optical