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A typical microfading test is achieved in less than 10 minutes and replicates exposures equivalent to 5–12 years of display at normal museum light levels. [5] The output of the xenon arc lamp is kept at constant by an exposure controller while it is filtered to 400–710 nm using a water filter. [ 6 ]
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Nanoindentation improves on these macro- and micro-indentation tests by indenting on the nanoscale with a very precise tip shape, high spatial resolutions to place the indents, and by providing real-time load-displacement (into the surface) data while the indentation is in progress. Figure 1.
The SON-R 5,5-17 was published in 1988. This test replaced the SON-’58 and the SSON. Subsequently, the SON 2.5-7 was revised, which resulted in the publication of the SON-R 2,5-7 in 1998. A short version of this test was published in 2007, the SON-R 2,5-7 [a], which is designed to be administered in non-western countries.
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Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. [1]
"A/B testing" is a shorthand for a simple randomized controlled experiment, in which a number of samples (e.g. A and B) of a single vector-variable are compared. [1] A/B tests are widely considered the simplest form of controlled experiment, especially when they only involve two variants.