Fifth-generation (5G) wireless networks are proposed to meet the increasing application traffic data, which will expand rapidly.To meet this increasing data challenge, the heterogeneous ultra-dense network (HetUDN) is one of the key technologies.In this paper, we focus on the spectrum allocation problem in the HetUDN system.To enhance both spectrum
Upper airway obstruction (UAO) due to adenotonsillar hypertrophy represents one of the rare causes of pulmonary hypertension in children.We report a case of adenotonsillar hypertrophy, managed at pediatric and otorhinolaryngology departments in Bugando mz7lh3t8hmlt Medical Centre (BMC), northwestern Tanzania, with complete remission of symptoms of
Background Heat-altered stones (HAS) are commonly wild pony rebajas reported in prehistoric sites across several continents, yet they continue to be generally overlooked and systematic studies on them are scarce.Methods We performed a systematic literature review which consisted of searching journal articles, book chapters and books published in En
While tunnel boring machines (TBMs) tunneling in clayey strata, the adhered excavated soil on the cutterhead and cutting tools tends to form mudcake after compaction and consolidation.Mudcake can obstruct the cutterhead openings and rendering the cutting tools ineffective, leads to a substantial reduction in advance rate.Dispersants are recognized
Introduction: Brain drain, an increasing phenomenon, can be defined as the international transfer of resources, in the form of a highly educated workforce, from developing to more developed countries.The tendency for migration leads to the activation of informational behaviour.The aim of this study was to search for the main causes of emigration of