Dromornithids are an extinct group of large flightless birds from the Cenozoic of Australia.Their record extends from the Eocene to the late Pleistocene.Four genera and eight species are currently recognised, with diversity highest in the Miocene.Dromornithids were once Microwave Globe considered ratites, but since the discovery of cranial elements
Since the beginning of the Covid-19 lockdown in March 2020, Italian universities have been faced with a completely new situation, generally marked by a certain backwardness as regards distance language teaching.This paper describes the impact that distance learning has had on language teaching, particularly on the teaching of lexis in the first yea
Because of the closed geographic conditions and the effect of uncertain factors during a catastrophe in an underground coal mine, a high failure rate of the sensor nodes after a disaster is a common phenomenon.To ensure normal communications after a disaster, an impact cushioning device is designed to ensure survival of the sensor nodes during the
In recent years, the storage of energy produced by renewable sources has become a topic of great interest.Lead-acid batteries are widely used in this field, in particular those based on VRLA (Valve-Regulated-Lead Acid) technology, in which the electrolyte is immobilized inside the battery.In this paper, the use of a hydrogel as an electrolyte was c