Mechanical ventilation is an important way to maintain the temperature and moisture of grain piles in the warehouse within the safe storage range, which is closely related to grain storage safety and the benefits of storage enterprises.In order to solve the disadvantages of the slow advancing speed of the inlet air in the vertical direction of the
Background A few odontocetes (echolocating toothed cetaceans) have been able to independently colonize freshwater ecosystems.Although some extant species of delphinids (true dolphins) and phocoenids (porpoises) at least occasionally migrate upstream of large river systems, they have close relatives in fully marine regions.This contrasts with the th
Summary: Herein, with the help of experimental and first-principles density functional theory (DFT)-based studies, we have shown that structural changes in the water coordination in electrolytes having high alkalinity can be a possible reason for the reduced catalytic activity of platinum (Pt) in high pH.Studies with polycrystalline Pt electrodes i
Predation is a powerful agent in the ecology and evolution of predator and prey.Prey may select multiple habitats whereby different genotypes prefer different habitats.If the predator is also habitat-specific the prey may evolve different habitat occupancy.Drastic changes can occur in the relation of the predator to the evolved prey.Fisheries exert
The article examines perceptual aspects of timbre within the context of avant-garde XX century music.An excerpt from a work by Luciano Berio was taken into account.We recorded it on 8 separate channels each of them devoted to small groups of homogeneous sounds, in order to obtain a global result that we could modify by subtracting one or more of th