Impurity transport caused by blob and hole propagations

Exact Euclidean distance function by chain propagations

Up to now, all the known Euclidean distance function algorithms are either excessively slow or inaccurate, and even Danielsson's method produces errors in some con gurations. We show that they are due to the local way distances are propagated in images by this algorithm. To remedy these drawbacks, an algorithm is introduced, which encodes the objects boundaries as chains and propagates these st...

Measurement methods for experimental impurity transport studies

Impurity Transport in Plasma Edge Turbulence

where θ is the density of impurities, μθ the collisional diffusivity, and ζ = mθ qθ e mi ρs Ln the influence of inertia, which enters via the polarization drift. The latter makes the flow compressible, consequently for ideal (massless) impurities, ζ = 0 and advection is due to the incompressible electric drift only. In all cases the impurity density is assumed to be so low compared to the bulk ...

Damage to Strawberries Caused by Simulated Transport

The quality and condition of perishable products delivered to the market and their subsequent selling prices are directly affected by the care taken during harvesting and handling. Mechanical injury, in fact, occurs at all stages, from pre-harvest operations through post-harvest handling, packing and transport to the market. The main implications of this damage are the reduction of the product’...

Impurity Transport in 3D Plasma Edge Turbulence

with τe being the electron collision time. nEQ is an equilibrium density associated with neoclassical fields and currents. K (nEQ) =−∇qJPS, which in turn is driven by the corresponding neoclassical potential JPS = 1 C (φPS). The contribution of impurities to the gross plasma density ni,0 is assumed to be negligible, i. e. ni = ni,0+nimp ≈ ni,0. For cold impurities the ion-drift velocity is give...