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Note that coherence of a given unit depends on the definition of the base units. Should the standard unit of length change such that it is shorter by a factor of 100 000, then the bar would be a coherent derived unit. However, a coherent unit remains coherent (and a non-coherent unit remains non-coherent) if the base units are redefined in ...
Coherence (physics), an ideal property of waves that enables stationary (i.e. temporally and spatially constant) interference Coherence (units of measurement), a derived unit that, for a given system of quantities and for a chosen set of base units, is a product of powers of base units with no other proportionality factor than one
The coherence miss count is the number of memory accesses that miss because a cache line that would otherwise be present in the thread's cache has been invalidated by a write from another thread. [3] Coherence in a multi-processor system is maintained if only one copy of a memory block is present or all the copies have the same value. Even if ...
The coherence of a linear system therefore represents the fractional part of the output signal power that is produced by the input at that frequency. We can also view the quantity 1 − C x y {\displaystyle 1-C_{xy}} as an estimate of the fractional power of the output that is not contributed by the input at a particular frequency.
Level of measurement or scale of measure is a classification that describes the nature of information within the values assigned to variables. [1] Psychologist Stanley Smith Stevens developed the best-known classification with four levels, or scales, of measurement: nominal, ordinal, interval, and ratio.
To be coherent, all pertinent facts must be arranged in a consistent and cohesive fashion as an integrated whole. The theory that most effectively reconciles all facts in this fashion may be considered most likely to be true. Coherence is the most potentially effective test of truth because it most adequately addresses all elements.
Coherence in statistics is an indication of the quality of the information, either within a single data set, or between similar but not identical data sets. Fully coherent data are logically consistent and can be reliably combined for analysis.
Early attempts at coherence where water was used as the medium of equivalence (1 gram the mass of 1 cm 3 of water. This was followed by coherent units as we know them. In short, the article will be about the development of the concept of coherence in measurements, not just the units themselves. Martinvl 19:43, 30 April 2013 (UTC)