Thin viscoelastic disc subjected to radial non-stationary loading

The investigation of non-stationary wave phenomena in isotropic viscoelastic solids using analytical approaches is the aim of this paper.Concretely, the problem of a thin homogeneous disc subjected to radial pressure load nonzero on the part of its rim is solved.The external excitation is described by Youth Goggles the Heaviside function in time, s

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Short-Term Hydrological Drought Forecasting Based on Different Nature-Inspired Optimization Algorithms Hybridized With Artificial Neural Networks

Hydrological drought forecasting plays a substantial role in water resources management.Hydrological drought highly affects the water allocation and hydropower generation.In this research, short term hydrological drought forecasted based on the hybridized of novel nature-inspired optimization algorithms borsa mini and Artificial Neural Networks (AN

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Evolution of Lactase Persistence: Turbo-Charging Adaptation in Growth Under the Selective Pressure of Maternal Mortality?

The emergence of the capacity to digest milk in some populations represents a landmark in human evolution, linking genetic Birthday Card change with a component of niche construction, namely dairying.Alleles promoting continued activity of the enzyme lactase through the life-course (lactase persistence) evolved in several global regions within the

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