The phrase "approach fails when" is correct and usable in written English.
It can be used to indicate a specific condition or situation under which a particular method or strategy does not succeed.
Example: "The approach fails when the necessary resources are not available to implement the plan effectively."
Alternatives: "method is ineffective when" or "strategy does not work when".
But such an approach fails when sales growth falls, he said, "like any other pyramid scheme".
While self-report is viewed as the gold standard of pain assessment, this approach fails when patients cannot communicate pain intensity or lack normal mental abilities.
In the present work, carried out over a commercial Fe zeolite SCR catalytic system, we show that this modelling approach fails when extended to lower temperatures (T ≤ 150 °C) and in the presence of water, conditions of growing interest for Diesel exhaust after-treatment systems.
Many systems based on the use of a stationary camera employ simple segmentation techniques to obtain foreground region; but this approach fails when the pedestrians have to be detected from moving platforms.
However, their approach fails when the images in the feature space are not linearly separable.
This approach failed when Alexander committed himself to a struggle against France on the side of Prussia.
Most traditional approaches fail when applied in real conditions and contexts like amounts of persons, appearance ambiguity, and occlusion.
In the present case, the KdV approach fails only when σ = 1 and vp0 = ve0 because in this case, the coefficient αN does become indeterminate, similar to the case of uniform plasma [43].
Now there is a emerging consensus among American computer designers that the Lego-block approach of chaining together microprocessors fails when it comes to certain classes of computing problems.
There is thus an emerging consensus among American computer designers that the Lego-block approach of chaining together microprocessors fails when it comes to certain classes of computing problems.
Both the figures show that the sixth-order algorithm works well for CFO up to 0.6, while the second-order algorithm performs comparably well with the sixth order for CFO up to 0.55 but fails when CFO approaches 0.6.
