"upon loading" is correct and usable in written English.
You can use this phrase when referring to the process of loading something, for example, "Upon loading the new software, I noticed the updates."
Guardian developer Chris Cross used the Vimeo API to retrieve the JSON for each video we found, pulling the large and small images you'll see upon loading the player.
Upon loading the site, you enter your name/handle, choose a sound board (DJ, Drum Kit, Special FX, etc).
However, they pose unique challenges due to lack of effective models for predicting deformation upon loading.
Where the fixture titanium is too thin around the abutment, the tendency is to lose bone upon loading.
The topological and chemical short-range order of the Cu Zr glasses changes upon loading.
Differential scanning calorimetry (DSC) was utilized to investigate changes in crystallinity and lamellar thickness distributions upon loading.
The matrix is brittle and a mode I crack is allowed to propagate through the specimen upon loading.
Displacement was measured directly by the MTS machine as the vertical change in position of the lateral tibial plateau upon loading.
Upon loading a certain atomic force on the DLC-coated Si tip, nanoprocessing was performed by controlling the tip-scanning path with a computer.
They are oriented in different directions, undulated in the stress-free configuration and they gradually become taut upon loading.
They remained elastomeric upon loading up to 25 wt.%, having a Young's modulus of only 1.4 MPa.
