Results 211 to 220 of about 52,709 (270)

Quantifying the biological impacts of nightlights: implications for sleep and circadian health in children. [PDF]

NPJ Biol Timing Sleep
Glickman GL, Rothstein-Epp R, Binkowski K, Preilipper SMM, Santiago A, Bessman SC, Easterling A, Harrison EM.   +7 more
europepmc   +1 more source

Hyperspectral reflectance spectroscopy for rapid nondestructive microstructural evaluation of high strength internally cured concrete. [PDF]

Sci Rep
Kiran V K, Sathyan D, Nidamanuri RR.
europepmc   +1 more source

Integrating VNIR-SWIR Spectroscopy and Handheld XRF for Enhanced Mineralogical Characterization of Phosphate Mine Waste Rocks in Benguerir, Morocco: Implications for Sustainable Mine Reclamation. [PDF]

Sensors (Basel)
Mansour AE, Najih A, Ouzemou JE, Laamrani A, Elghali A, Hakkou R, Benzaazoua M.   +6 more
europepmc   +1 more source

Dramatic decline of <i>Sargassum</i> in the north Sargasso Sea since 2015. [PDF]

Nat Geosci
Zhang Y, Barnes BB, Goodwin DS, Siuda ANS, Schell JM, McGillicuddy DJ, Lapointe BE, Qi L, Hu C.   +8 more
europepmc   +1 more source

A SPECTRORADIOMETER FOR FIELD USE

A SPECTRORADIOMETER FOR FIELD USE
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A Direct-Reading Comparison Spectroradiometer

Applied Optics, 1966
A modification of the Cary Model 14 for radiometry is described which allows recording in microwatts per square mlllimeter per nanometer on the ordinate and linear wavelength on the abscissa through the range 250-2500 nm. A 5.08-cm diam rotating integrating sphere is used to compare standard to unknown sources at a 30 c/s rate.
S, Hedelman, D C, Nelson
openaire   +2 more sources

Realization of an infrared spectroradiometer

Applied Optics, 1991
This paper describes a fully automatic spectroradiometer designed to measure the absolute spectral irradiance of light sources in the 800-2400-nm spectral range by direct comparison of radiation sources with a standard source, both placed the same distance away. The total estimated uncertainty in the comparison process is
P, Corredera, A, Corrons, J, Campos, A, Pons   +3 more
openaire   +2 more sources

A scanning spectroradiometer

Journal of Physics E: Scientific Instruments, 1968
An instrument is described by which the absolute spectral power distribution of light sources can be displayed directly on a pen-recorder. It is based on a grating monochromator which is motor driven at a scanning rate of 100 nm min−1, and the variation with wavelength of the overall instrument response is automatically compensated by an electrical ...
openaire   +2 more sources

A Versatile Spectroradiometer and Its Applications

Applied Optics, 1967
A spectroradiometer is described which is designed to make measurements of spectral radiance, irradiance, transmittance, and reflectance. In one minute the Hilger D300 monochromator is set to the next wavelength to be measured and a measurement is made of (a) the dark current of the photomultiplier, (b) the photocurrent produced by the reference source,
Sanders, C. L., Gaw, W.
openaire   +2 more sources