The phrase "a critical issue when" is correct and usable in written English.
It can be used to introduce a significant concern or topic that arises in a specific context or situation.
Example: "A critical issue when implementing new technology is ensuring that all staff are adequately trained."
Alternatives: "an important factor when" or "a key concern when".
That's been a critical issue when I've wanted to deviate from our business plan.
Loop-closing has long been identified as a critical issue when building maps from local observations.
Controlling the electrical conductivity is a critical issue when processing material systems consisting of an insulating matrix filled with conductive particles.
A critical issue when solving the share-of-choice product design problem is the reliability of the optimal solution in the presence of partworth uncertainty.
Jetting optimization of fluids enhances the droplet placement and volume accuracy that is a critical issue when forming interconnections for dense IC circuits.
The long-term benefits of administering interferon-based therapy to elderly patients with HCV infection is a critical issue when taking the patient's remaining life expectancy into consideration.
Computational time appears to be critical issue when load flow calculation is performed on large power system load flow models.
Today, I'm focusing on one critical issue when worries (not nightmares) keep you awake.
Its current leaders President Tomislav Nikolic and Prime Minister Ivica Dacic are both former allies of Milosevic, which probably doesn't inspire international leaders to stand up for them on such a critical issue, especially when they make embarrassing and unhelpful comments.
This is a critical issue particularly when clinical diagnosis is uncertain [4, 5].
Security is a critical issue especially when WSN is deployed in hostile environment where sensor nodes may be exposed to a variety of malicious attacks.
