threshold for display
1Display contrast — Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.).… …
2Flicker fusion threshold — The flicker fusion threshold (or flicker fusion rate) is a concept in the psychophysics of vision. It is defined as the frequency at which an intermittent light stimulus appears to be completely steady to the observer (this article centers around …
3Liquid crystal display — LCD redirects here. For other uses, see LCD (disambiguation). Reflective twisted nematic liquid crystal display. Polarizing filter film with a vertical axis to polarize light as it enters. Glass substrate with ITO electrodes. The shapes of these… …
4Software tools for molecular microscopy — There are a large number of software tools or software applications that have been specifically developed for the field sometimes referred to as molecular microscopy or cryo electron microscopy or cryoEM. Several special issues of the Journal of… …
5Ecological threshold — can be described as the point at which a relatively small change in external conditions causes a rapid change in an ecosystem. When an ecological threshold has been passed, the ecosystem may no longer be able to return to its state. The… …
6On the Threshold of Liberty — Artist René Magritte Year February March 1937 Type Oil on canvas Dimensions 238.8 cm × 185.4 cm (94 in ×& …
7Point system — For other uses of the word point, see Point A point system is one in which a driver s licensing authority issues demerits, or points to drivers on conviction for road traffic offenses. Points may either be added or subtracted, depending on the… …
8Formaldehyde — For other uses, see Formaldehyde (disambiguation). Formaldehyde …
9Government procurement in the United States — is based on many of the same principles as commercial contracting, but is subject to special laws and regulation as described below. Persons entering into commercial contracts are pretty much free to do anything that they can agree on. Each… …
10Government contract — Contracting with the U.S. Government is based on many of the same principles as commercial contracting andcan be very profitable, but is sufficiently different from commercial contracting to require special care.Persons entering into commercial… …
