selectivity

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selectivity

[sə‚lek′tiv·əd·ē]
(analytical chemistry)
The ability of a type of method or instrumentation to respond to a specified substance or constituent and not to others.
(electronics)
The ability of a radio receiver to separate a desired signal frequency from other signal frequencies, some of which may differ only slightly from the desired value.
The inverse of the shape factor of a bandpass filter.
References in periodicals archive ?
Gillnet mesh selectivities for gummy shark, Mustelus antarcticus Gunther, taken in south-eastern Australian waters.
Gill-net mesh selectivities for two species of commercial carcharhinid shark taken in northern Australia.
With the addition of the C8 to the C18 and RP Amide (an embedded polar group phase) columns, the Ascentis column now offers an excellent range of selectivities for method developers to choose.
Unstable descending curves have also been observed in some recent west coast groundfish assessments, where selectivities for the last age (length) group drops to a very small value (He et al.
The selectivities of different gears can be compared by fishing the gears side by side, but without knowing the size composition of the stock being fished, it is impossible to determine the form of the selectivity functions.
Some rule has to be chosen for scaling the selectivities to make the model determinate.
When length-specific selectivity is allowed to be dome-shaped in the stock assessment model (rather than forced to be asymptotic), the estimated commercial selectivities turn out to be quite similar in pattern to the mark-recapture estimates, including the differences among areas.
Many companies believe that the profile control and selectivities of silicide etching are more stringent than polysilicon etch processes.
Abstract--We estimated size-specific depth distributions and commercial bottom trawl fishery selectivities for Dover sole (Microstomus pacificus), shortspine thornyhead (Sebastolobus alascanus), longspine thornyhead (S.
In our study, we estimated depth distributions and fishery selectivities for four demersal fish species taken in commercial bottom trawls: Dover sole (Microstomus pacificus), shortspine thornyhead (Sebastolobus alascanus), longspine thornyhead (S.