The phrase "as observed during" is correct and usable in written English.
It can be used to refer to something that was noticed or recorded at a specific time or event.
Example: "The results were consistent with the trends as observed during the previous study."
Alternatives: "as noted during" or "as seen during".
A number of mathematical models have been proposed to describe the proliferation and death of cells in successive generations, as observed during CFSE-labeling experiments.
This section presents a model of the temporal development of a cell population through successive generations (as observed during CFSE-labeling experiments).
Furthermore, mental simulations of their respective game partners actions (i.e. button pressing behaviour as observed during the briefing) likely contributed to the observed strong TPJ activity [60].
So was the video operation, as observed during Friday's rehearsal.
The computational model has successfully captured the flow regimes as observed during experiments.
The patient had many dental caries, as observed during examination at the Fukuoka Dental College Hospital.
Operating conditions affect the filament diameter and morphology similar to those as observed during conventional extrusion printing.
There has been no evidence of recurrence 2 years after surgery as observed during biannual follow-up with CT.
Overactivation of the NMDA receptor is associated with excitotoxic events leading to neurodegenerative processes as observed during the development of Alzheimer's disease, ParFnson's disease, Chorea Huntington and epilepsy.
Such pull-through failures can lead to catastrophic failures of the entire roofing systems as observed during recent high wind events.
This new model is capable of predicting acid gases like hydrogen sulfide, carbon oxides and fuel gases like hydrogen, methane as observed during SAGD field operations.
