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An ellipsoidal model describes only the ellipsoid's geometry and a normal gravity field formula to go with it. Commonly an ellipsoidal model is part of a more encompassing geodetic datum. For example, the older ED-50 (European Datum 1950) is based on the Hayford or International Ellipsoid. WGS-84 is peculiar in that the same name is used for ...
In considering the effect of sensor size, and its effect on the final image, the different magnification required to obtain the same size image for viewing must be accounted for, resulting in an additional scale factor of / where is the relative crop factor, making the overall scale factor / (). Considering the three cases above:
sRGB is a standard numerical encoding of colors, based on the RGB (red, green, blue) color model, for use on monitors, printers, and the World Wide Web.It was initially proposed by HP and Microsoft in 1996 [2] and became an official standard of the International Electrotechnical Commission (IEC) as IEC 61966-2-1:1999. [1]
In computer processing, the Munsell colors are converted to a set of "HVC" numbers. The V and C are the same as the normal chroma and value. The H (hue) number is converted by mapping the hue rings into numbers between 0 and 100, where both 0 and 100 correspond to 10RP. [7]
In many occupational scenarios, the hourly dose rate might fluctuate to levels thousands of times higher for a brief period of time, without infringing on the annual limits. The conversion from hours to years varies because of leap years and exposure schedules, but approximate conversions are: 1 mSv/h = 8.766 Sv/a 114.1 μSv/h = 1 Sv/a
If you change units (a special case of a change of basis) from meters to millimeters, a scale factor of 1/1000, a displacement of 1 m becomes 1000 mm—a contravariant change in numerical value. In contrast, a gradient of 1 K /m becomes 0.001 K/mm—a covariant change in value (for more, see covariance and contravariance of vectors ).
The Dublin & Drogheda Railway underwent a gauge conversion because the gauges were too close to allow a dual-gauge line. Italy The Potenza – Avigliano Lucania line in Italy is a dual gauge rail with 1435 mm ( 4 ft 8 + 1 ⁄ 2 in ) and 950 mm ( 3 ft 1 + 3 ⁄ 8 in ) tracks.