Convolution thresholding is a new approach to describing interface motion that unifies and generalizes Huygens' principle, threshold growth cellular automata, and reaction diffusion equations.
The characteristics of the simulated crack growth, found in the present study, are typical for below-threshold growth, with slow acceleration, constant growth rate, and, eventually, either arrest or transition to long crack growth behaviour, as reported in the literature.
In this investigation, the estimation of ΔKeff is based on the traditional opening load method and also on numerous new methods that show improved correlation of fatigue crack growth rate stress ratio effects in general but mostly at near-threshold growth rates.
Only when the temperature exceeds the threshold growth temperature of a plant does the accumulated temperature affect phenological events.
In this model, when the temperature is below the threshold growth temperature of a plant, the temperature does not influence phenological events.
In other words, as the temperature increases to upper threshold, growth is accelerated and the length of the development period is reduced.
Mortality models are usually based on the self-thinning line as the upper threshold (stand level) or on minimum (threshold) growth rates needed for individual tree survival (individual tree level).
If turgor is very high and the oscillations in the growth rate have a small amplitude, the average growth rate will be close to the threshold growth rate and relatively independent of the turgor value.
State coverage of rituximab treatment may be considered a cost-effective treatment for the Ukrainian population under conditions of economic stability, cost-effectiveness threshold growth, or rituximab price negotiations.
State coverage of rituximab treatment may not be considered a cost-effective treatment option for the Ukrainian population compared to current care; however, it may become cost-effective under conditions of economic stability, cost-effectiveness threshold growth or rituximab price negotiations.
