The phrase "are produced upon" is correct and usable in written English.
It can be used in contexts where you want to indicate that something is created or generated as a result of a specific condition or action.
Example: "The results are produced upon completion of the experiment, ensuring accuracy in the findings."
Alternatives: "are generated when" or "are created after".
Some of the most powerful evidence for an innate connection between humans and nature comes from studies of biophobia (the fear of nature), in which measurable physiological responses are produced upon exposure to an object that is the source of fear, such as a snake or a spider.
Evidence is also presented to suggest that extended-chain crystals of PET are produced upon crystallization of mechanically milled PET.
The chitosan/gelatin hybrid solution is then cast onto the PDMS mould for pre-freeze and the monolayer porous structures with organized internal morphology are produced upon lyophilization.
Low H3PO4/DCW impregnation ratios lead to flexible and microporous activated carbon cloths, whereas more fragile and rigid activated carbon cloths with higher external surface area are produced upon increasing the amount of H3PO4.
The anodic oxidation of p-nitrosodimethylaniline, which has been used as a model compound for the detection and quantitation of hydroxyl radicals, was studied in order to determine whether hydroxyl radicals are produced upon anodic polarization of Ebonex.
To determine if ROS are produced upon BE/cholesterol treatment we used a dye specifically detecting mitochondrial superoxide.
So, serendipitously, the Tories' 2010 election launch party was held here, on an industrial site where nothing is produced, upon a swath of dereliction at the heart of a great capital, on a locus of highly dubious real estate dealings.
This infers that some new magnetic mineral might be produced upon heating.
Finally, phase composition analysis confirmed that no new crystalline phase was produced upon CPNs addition.
Therefore, a smooth surface must have been produced upon the ground fiber layer by some polishing work.
The complex is excited at the electrode and an ECL signal is produced upon reacting with tripropylamine (TPrA).
