The phrase "as an instance when" is correct and usable in written English.
It can be used to introduce a specific example or situation that illustrates a point being made.
Example: "As an instance when teamwork led to success, consider the project we completed last year."
Alternatives: "as an example of" or "as a case where".
As an instance, when the substrate thickness increases via crystallization temperature, the chains tend to gain more stretched conformations.
A 'gaffe' is famously defined as an instance when a politician accidentally tells an uncomfortable truth (see - Biden, Joe).
To differentiate transiently acquired virus from replicated/shed virus, we defined a transmission event as an instance when samples from a naive water contact contained >2.5 lof10 EID50/mL of virus and/or when the bird shed during >2 consecutive time points.
Saying you have good problem-solving skills is not going to sell others on to you as much as briefly recounting an instance when you demonstrated superb problem solving.
Responding to a question about how to figure out when you should stick at a product or piece of work which appears to be failing and when to scrap everything and start again, Cook pointed to Apple's failed Cube desktop as an example of an instance when, even with a lot of time and effort invested, the company had made a quick decision to kill off a product.
An approved crossover is defined as any instance when the study centre personnel makes a permanent, deliberate, medically intended decision to use Cardiac Compass Trends and/or HF-Management Report to optimize patient care in the control arm.
Publishers will bid high not just for economic reasons, but often to make a statement, to announce that they are serious players for a particular kind of book, as, for instance, when a paperback house moves into hardcover publishing as well.
The program is flexible because it can be arranged to meet priority requirements for information, as, for instance, when an alarm condition develops.
Sometimes that availability fills in a crucial gap in movie history — as, for instance, when Renoir's "Diary of a Chambermaid" was streaming on Amazon long before Olive brought out its welcome disk.
Confusion sometimes arises when a virion is called the virus, as, for instance, when one refers to "the picture of the virus" or to the process of "purifying the virus".
(The Washington Post used to have one). We hear from them when an organization screws up in some high-profile fashion, as, for instance, when the New York Times last year messed up the story about the investigation referrals surrounding Hillary Clinton's email during her tenure as secretary of state.
