The conversion of heavy bitumen into a lighter crude oil by increasing the ratio of hydrogen to carbon, either by removing carbon (coking) or adding hydrogen (hydroprocessing).
To raise a grade to a higher one or a level to a higher level. Some courses require pre-requisites. If you don't meet the pre-requisites with a high enough mark, you may have to take one of Kwantlen's upgrading classes first.
The process where a collector progressively improves the quality of a numismatic collection by replacing lesser quality coins with higher graded examples.
Raising the quality rating of a security because of new optimism about the prospects of a firm due to tangible or intangible factors. This can increase investor confidence and push up the price of the security.
In castings, the removal and repair of discontinuities to raise the quality level of the casting beyond that which can be economically achieved by good foundry practice. See Casting, Foundry.