In this paper, the blockage problem of optical link between AGV (autonomous ground vehicles) and AP (access point) in logistics–warehousing VLC (visible light communication) network is analyzed. First, based on random geometric model, a link-blockage model proposed. Given position AGV, obstacle, state can be obtained through model. Then, an AP-placement scheme Under placement, AGVs any have rel...

In this research numerical simulations are performed, using the multi-relaxation-time lattice Boltzmann method, in the range 3 ≤ β = w[d] ≤ 30 at Re = 100, 200 and 300, where β the blockage ratio, w is the equispaced distance between centers of cylinders, d is the diameter of the cylinder and Re is the Reynolds number, respectively. Special attention is paid to the effect of the equispaced dist...

We have examined the effects of certain mutations of the selectivity filter and of the membrane helix M2 on Ba(2+) blockage of the inward rectifier potassium channel, Kir 2.1. We expressed mutant and wild type murine Kir 2.1 in Chinese hamster ovary (CHO) cells and used the whole cell patch-clamp technique to record K(+) currents in the absence and presence of externally applied Ba(2+). Wild ty...

We systematically investigate the e ect of blockage sites in a cellular automaton model for tra c ow. Di erent scheduling schemes for the blockage sites are considered. None of them returns a linear relationship between the fraction of \green" time and the throughput. We use this information for a fast implementation of a simulation of tra c in Dallas.

Much of life's essential molecular machinery consists of large protein assemblies that currently pose challenges for structure determination. A prominent example is the nuclear pore complex (NPC), for which the organization of its individual components remains unknown. By combining stochastic super-resolution microscopy, to directly resolve the ringlike structure of the NPC, with single particl...