Abstract The revised International System of Units (SI) came into force on May 20, 2019. Simultaneously, updated versions supporting documents for the practical realization SI base units ( mises en pratique ) were published. This review paper provides an overview mise unit length, metre, that now gives guidance realisation traceable length metrology spanning 24 orders magnitude. begins by showi...

In this paper, we consider a multi-server queuing system in which additional servers are allowed for a longer queue to reduce the customer’s balking and reneging behavior. The customers are assumed to arrive in Poisson fashion and their service- times follow exponential distribution. The number of servers in long run depends on the queue-length. We obtain equilibrium queue size distribution. Th...

Conditions of severe hyper-inflammation can lead to uncontrolled activation of macrophages, and the ensuing phagocytosis of live cells. However, relationships between inflammatory stimuli and uncontrolled phagocytosis of live cells by macrophages are poorly understood. To identify mediators of this process, we established phagocytosis assays of live cells by stimulating macrophages with CpG DNA...