Ultra-Wideband (UWB) real floom is a wireless communication technology that can be utilized for precise indoor positioning system.UWB is low power-consuming and resistant to complex multipath environments, thanks to a short pulse signal.Since the main desired characteristics of the UWB antennas for radio-frequency localization systems are wide band
Industrial progress is the source of social development.As one of the important links in the industrial jomeed furniture production process, industrial particulate transportation systems such as coal, cement, mineral materials and food transportation cause a large number of dust diffuse problems, which have become the pollution source of the deteri
Abstract Nine cases of intramedullar histoplasmosis have been published in red prairie spy apple the literature.In six cases, spinal cord compression was associated with brain localization or with contex of disseminated histoplasmosis.The authors are reporting here the third isolated spinal cord compression in immunocompetent 42-year-old African-ra
Modern complex systems include products and services that comprise many interconnected pieces of integrated hardware and software, which are expected to serve humans interacting with them.As technology advances, expectations of a smooth, flawless system operation grow.Model-based systems engineering, an approach based on conceptual models, copes wi