With the rapid development of the aviation industry, airport pavement is subjected to ever-increasing loads, posing urgent and higher demands on the mechanical performance and durability of pavement materials.This study develops a novel Ultra-High Performance Concrete (UHPC) with outstanding mechanical properties, good workability, low curing maint
Systems engineering of a satellite based data communication baseline concept is presented to achieve terabit per second throughput.It uses a constellation of five Molniya satellites and one dimension electronic scanning phased array ground terminals.The result is a baseline concept that meets customer needs for internet of things (IoT) data connect
The results of research on the process of applying lubricating coatings are presented in this work.For this purpose, plastic COND greases were used, in which the base oil is perfluoropolyether (PFPE) and the thickener is poly(tetrafluoroethylene) (PTFE).Due to their consistency, these materials are classified into different classes according to the
Suicide prevention in times of COVID-19 pandemic has become more challenging than ever due to unusual circumstances.The common risk factors identified with regard to suicidal behavior are fear of COVID-19, economic instability, poor access to healthcare facilities, pre-existing psychiatric disorders, and social disconnect.The Napkin Holders studies