Words similar to spectral
Example sentences for: spectral
How can you use “spectral” in a sentence? Here are some example sentences to help you improve your vocabulary:
Using such an opponent mechanism, the visual system can “tell” whether there is a stronger signal from the short wavelength receptor or the long wavelength receptor—hence it can extract information about stimulus spectral quality.
Although all birds detect red objects and some birds do have their greatest spectral sensitivity and finest hue discrimination towards the long-wavelength (red) end of the spectrum (Stiles 1981), they can also respond to ultraviolet light, and there is no evidence that, for example, hummingbirds have greater spectral sensitivity or greater spectral discrimination ability in the red part of the spectrum (Goldsmith and Goldsmith 1979).
Thus, as white light can be filtered to yield any component spectral color, by analogy, specific periodicities within a signal can be easily eliminated using a filter algorithm [ 31 ] . Although it is not our intention to present a formal or rigorous review of digital filters (see [ 36 ] , for example), we will introduce a simple filter and then discuss the slightly more sophisticated Butterworth filter which we use in our studies.
Photomultiplier tube voltage and spectral compensation were initially set using single-stained cells (cells expressing GFP fusions with C/EBPα but not stained with propidium iodide and cells transfected with the control vector containing no GFP cDNA but stained with propidium iodide).
Image processing was in three principal steps: background subtraction, correction for spectral overlap and ratio generation.
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