The highly dynamic nature of cognitive radio (CR) systems and their stringent latency requirements pose a significant challenge in the realization of efficient intelligent transport systems (ITS).In this paper, we investigate relay selection and opportunistic spectrum access in conjunction with blockchain technology in a secure manner.Specifically,

The dependency on nonbiodegradable-based food packaging, increase in population growth, and persistent environmental problems are some of the driving forces in considering the development of biodegradable food packaging.This effort of green packaging has the potential to solve issues on plastic wastes through the combination of biodegradable compos

In recent years, spiral-grooved air bearing systems have attracted much attention and are especially useful in precision instruments and machines with spindles that rotate at high speed.Load support can be multidirectional and this type of bearing can also be very rigid.Studies show that some of the design problems encountered are dynamic and inclu

A coated system consisting of a ceramic substrate and a coating of a copper alloy was developed in order to provide electrically conductive properties to specific surface of the substrate.The coatings were elaborated by oxy-fuel thermal spraying processes.The best way to prepare the surface of the substrate was previously determined to achieve a su

Background: With the impending threat of future COVID-19 waves, it is imperative that teaching hospitals develop, implement, and evaluate a systematic training program to render HCW elastic in delivering COVID-19 related services.We present our experience in developing, implementing, and evaluating SLA/GEL Chargers a sustainable and scalable COVID-