Gradually, human artifacts appear: a pickup truck, isolated vehicles in a parking lot amid a ghastly light.
As a result, a considerable amount of communication overhead and congestion can result from the routing discovery processes for the isolated vehicles.
Accordingly, DMCNF can effectively reduce the number of clusters and isolated vehicles, thereby decreasing the number of clusters with increasing propagation range.
A vehicle can still identify the cluster to which it belongs to via the multi-hop scheme even if velocity increases and the number of isolated vehicles is reduced.
Accordingly, an enhanced cluster maintenance strategy with multi-metrics and a secure scheme is proposed so as to reduce the number of isolated vehicles, keep appropriate loading for each cluster head, and protect the whole link over cluster communication.
The traffic density-interaction between the vehicle wakes (i.e., isolated vehicles, interacting vehicle wakes, strong interacting vehicle wakes) have been studied by Gokhale and Khare [ 78], and their results showed that in 'unstable' conditions, the Vehicle Wake Factor (VWF) varies between 1.63 and 0.3 (for wind direction, θ = 90°) and 2.5 and 0.8 (for wind direction, θ = 180°).
To determine if the changes in osteoblast and osteoclast numbers and activity resulted from changes in cell differentiation, bone marrow stromal cells that were isolated from vehicle- and SD-208-treated mice were examined ex vivo in osteoblast or osteoclast differentiation assays (Fig. 5a 5c).
Draining lymph nodes (DLNs) and splenocytes were isolated from vehicle- or BA-treated EAE mice for analyses.
To investigate the presence of cytokines/chemokines produced locally, knee synovial biopsy samples were isolated from vehicle and estrogen-treated mice.
For cytokine measurement, DLN cells and splenocytes isolated from vehicle- or BA-treated EAE mice were cultured in complete RPMI-1640 medium at a density of 1 × 10 per well in the presence of the MOG peptide (20 μg/ml).
