Development is checked visually, the print remaining in the developer until the image has reached its full density.
Identification cards were checked visually and electronically before entry, again visually once inside, and visually and electronically one more time before anyone entered the elevators.
The assumption of normal distribution variables was checked visually by Q–Q plots.
The distribution of variables was checked visually for normality by QQ plots.
After equilibrium was reached, the mixtures were checked visually for phase clarity and flowability.
All fish were also checked visually for overall health status, external abnormalities, and infection with ectoparasites.
However, all registered images were checked visually for image artefacts that might have resulted from (non-rigid) image registration.
Once the joint angles were obtained, they were put into CAD software, and the motions were checked visually.
All magnetic data are checked visually for gaps and offsets; small gaps are interpolated and channels with low-quality data or large gaps are removed.
As described previously (Feng et al. 2016), standard deviations were checked visually by error bars, and statistical significance was determined by analysis of variance.
The presence of corrosion pits and defects was checked visually (SEM) to assess the degree of weathering of the pyrite as a result of pretreatment.
