spectral regions

spectral regions

[′spek·trəl ‚rē·jənz]
(spectroscopy)
Arbitrary ranges of wavelength, some of them overlapping, into which the electromagnetic spectrum is divided, according to the types of sources that are required to produce and detect the various wavelengths, such as x-ray, ultraviolet, visible, infrared, or radio-frequency.
References in periodicals archive ?
The subject of the public contract is the delivery of a compact table microplate reader designed to measure the absorption of biological samples in the ultraviolet (uv) and visible (vis) spectral regions for determining the concentrations of biological analytes and macromolecules and analyzing enzyme activity.
Consequently, the spectral regions and bands sensitive to yellow rust were found out (Fig.
Ushio's expertise in manufacturing specialized UV products, uniquely designed to provide light rich in the ultraviolet spectral regions.
Multivariate calibration was preliminarily developed from 90 spectra, using different spectral regions and various types of pre-signal processing (mean centering, auto-scaled, smoothed-derived and submitted to MSC).
PCA was used for preliminary data analysis: detecting outlier spectra and the specification of important spectral regions.
The prediction results of N, P, and K by LS-SVM model in the NIR, MIR, and combined NIR-MIR spectral regions are shown in Table 3.
The multi-variate regression coefficient information shows the dominant spectral regions that feed the model prediction below it (figure 5).
Amateurs are now routinely monitoring the Sun in exotic spectral regions such as hydrogen-alpha (Ha) and calcium K (CaK), where particularly exciting features become visible.
The 20/20 PV Microspectrophotometer, from CRAIC Technologies, captures spectra and images of microscopic samples in the ultra-violet, visible, and near infrared spectral regions.
It has been demonstrated that the spectral regions at or around 450, 530, and 610 nm are uniquely efficient at stimulating the visual system when targeting increased brightness and color perception per watt [for example, Thornton 1992a 1992b 1992c, Houser and Hu 2004, Houser and others, 2004].
Headwall's ability to manufacture application-specific sensors for spectral regions of interest affords our customers with well-differentiated capabilities.
Different spectral regions were tried for each extraction system and its effect on the correlation and prediction accuracy was assessed until the best correlation was obtained.

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