The multipath is unavoidable in radio frequency (RF) wireless communication, and affects almost every element of the communication systems.The impact of multipath on the received signal depends on whether the delay spread (i.e., spread of time delays associated with different multipath components) is large or small relative to the symbol period of
Thermoelectrics can convert waste heat to electricity and vice versa.The energy conversion efficiency depends on materials figure of merit, zT, and Carnot efficiency.Due to the higher Carnot efficiency at a higher temperature gradient, high-temperature thermoelectrics are attractive for waste heat recycling.Among high-temperature thermoelectrics, s
Introduction: Traumatic dental injuries (TDIs) are a common occurrence in the general population, and they are one of the most severe dental public health issues among children.Aim: This cross-sectional study aims to assess the knowledge, attitude, and practices of school teachers in Madinah, Saudi Arabia, regarding dental trauma and its emergency
Today the long-term conservation of cultural heritage is a big challenge: often the artworks were subjected to unknown interventions, which eventually were found to be harmful.The noninvasive investigation of the conservation treatments to which they were subjected to is a crucial step in order to undertake the best conservation strategies.We Sleep