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APEX stands for Additive System of ... is the speed value (aka sensitivity value): ... eliminated exposure calculator dials in favor of tabulated APEX values. However ...
The f-number (relative aperture) determines the depth of field, and the shutter speed (exposure time) determines the amount of motion blur, as illustrated by the two images at the right (and at long exposure times, as a second-order effect, the light-sensitive medium may exhibit reciprocity failure, which is a change of light sensitivity ...
A minimum detectable signal is a signal at the input of a system whose power allows it to be detected over the background electronic noise of the detector system. It can alternately be defined as a signal that produces a signal-to-noise ratio of a given value m at the output.
The use of radiometric units is appropriate to characterize such sensitivity to invisible light. In sensitometric data, such as characteristic curves, the log exposure [4] is conventionally expressed as log 10 (H). Photographers more familiar with base-2 logarithmic scales (such as exposure values) can convert using log 2 (H) ≈ 3.32 log 10 (H).
The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria. In general, it is the signal level required for a particular ...
Both have data that shows that these diets reduce liver fat (a key marker of insulin sensitivity), lower weight, lower triglycerides, improve insulin sensitivity, and lower inflammation. And both ...
Higher coil mass, sensitivity low to medium. Soft non-linearity as the coil exceeds limits. Underhung coil. Gap's height is greater than the coil's height. This method keeps the magnetic flux that the coil experiences, constant over the coil's normal excursion range. Low coil mass, sensitivity medium to high. Hard non-linearity as the coil ...
The log diagnostic odds ratio can also be used to study the trade-off between sensitivity and specificity [5] [6] by expressing the log diagnostic odds ratio in terms of the logit of the true positive rate (sensitivity) and false positive rate (1 − specificity), and by additionally constructing a measure, :