Low Earth orbit (LEO) satellite constellations are currently being explored Rubber Stopper to provide global and seamless coverage for IoT-over-Satellite applications.Random access techniques require low transmission overhead providing a compatible route for IoT-over-Satellite applications, however, coming at the expense of the offered quality-of-s
Ferns are an important component in the understorey of tropical forests and their distribution is influenced by several biotic and abiotic factors.At a regional scale, soil characteristics and canopy openness play an important role in fern species composition and richness, as well as in the abundance of individuals.Our objective was to compare the
Toona sinensis, a perennial and deciduous tree belonging to the Meliaceae family, has been cultivated for more than 2000 years in China.Storing the buds of T.sinensis is difficult, as it is easy for them to rot during storage, which seriously affects their edible and commodity value.Young leaves and buds of Mains Terminal Strip T.sinensis plants ar
This paper describes the design of a planar antenna array system with pattern reconfiguration in the azimuthal plane.The antenna array system is designed based on four antenna units where each unit is composed of two printed Yagi-Uda elements that radiate in directional beams over a dedicated sector, thus ensuring maximum isolation with neighboring
Abstract Background In tissue engineering, mesenchymal stem cells (MSCs) are common seed cells because of abundant sources, strong proliferation ability and immunomodulatory function.Numerous researches have demonstrated that MSC-macrophage crosstalk played a key role in the tissue engineering.Macrophages could regulate the differentiation of MSCs