Results 211 to 220 of about 3,632,568 (255)

Wavelength dependence of intraocular straylight

Experimental Eye Research, 2006
Wavelength dependence of retinal straylight has been a mystery since Stiles in 1929 [Stiles,W.S., 1929. The scattering theory of the effect of glare on the brightness difference threshold. Proc. R. Soc. Lond. (Biol.) 105, 131-41.] supposed it to have the strong Rayleigh type lambda(-4) dependence, typical for small particle light scattering, but which ...
Joris E, Coppens, Luuk, Franssen, Thomas J T P, van den Berg   +2 more
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Wavelength dependence of bilirubin photoreactivity

Life Sciences, 1977
Abstract The rates and products of the self-sensitized photoreactions of bilirubin IXα vary with excitation wavelength, solvent and the presence or absence of oxygen. Radical or Type I photooxidation reactions of bilirubin are implicated in degassed chloroform or methanol.
D A, Lightner, A, Cu
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Wavelength dependent reflectance functions

Proceedings of the 21st annual conference on Computer graphics and interactive techniques - SIGGRAPH '94, 1994
A wavelength based bidirectional reflectance function is developed for use in realistic image synthesis. A geodesic sphere is employed to represent the BRDF, and a novel data structure is used to store this description and to recall it for rendering purposes. A virtual goniospectrophotometer is implemented by using a Monte Carlo ray tracer to cast rays
Jay S. Gondek, Gary W. Meyer, Jonathan G. Newman   +2 more
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Wavelength dependence of skin emissivity

Physics in Medicine & Biology, 1969
Determination of skin emissivity, particularly in the wavelength range 2 to 20 ?, is important for the interpretation of the scans obtained in clinical infra-red thermography. This emissivity can be inferred from the difference in apparent temperature for an area of skin and a black-body set to have the same true surface temperature. The approximations
D J, Watmough, R, Oliver
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pH- and Wavelength-Dependent Photodecarboxylation of Ketoprofen

Organic Letters, 2011
The pH- and wavelength-dependent pathways for the photodecarboxylation of ketoprofen (KP) were mapped by CASSCF/CASPT2 computations. The decarboxylation of the basic form (KP(-)) was found to start from a long-distance charge transfer (CT) excited state when populated by photoexcitation at 330 nm.
Fang, WH, Xu, Y, Phillips, DL, Chen, X
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The Wavelength Dependence of Polarization

Applied Optics, 1963
Preliminary results are described of a program of polarimetry and photometry. Astronomical telescopes and a differential polarimeter are used with calibration by a Lyot depolarizer. The wide-band filters have effective wavelengths between 3250 A and 9900 A.
Thomas Gehrels, Thomas M. Teska
openaire   +1 more source

Wavelength-dependent polarization orientation in Daphnia

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2000
The ability to detect and use the polarization of light for orientation is widespread among invertebrates. Among terrestrial insects, the retinula cells that are responsible for polarization detection contain a single visual pigment, either ultraviolet or short (blue) wavelength sensitive.
I, Novales Flamarique, H I, Browman
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The wavelength dependence of seeing

Journal of the Optical Society of America, 1978
The deleterious effects of atmospheric inhomogeneities on telescope angular resolution (seeing effects) were studied at a wavelength of 10 microns with an imaging upconverter. Seeing was found to be systematically better by a factor of 1.9 at 10 microns than in the visible, in good agreement with theoretical predictions.
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Wavelength dependence of visual acuity in goldfish

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2003
Visual acuity was measured in a two-choice training experiment with food reward. Four goldfish were trained to select a homogeneously illuminated testfield when a high-contrast grating (transparency) was shown for comparison at the second testfield. Measurements were performed for white and monochromatic testfield illuminations in the light adapted ...
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Refraction effects and wavelength dependence

SPIE Proceedings, 2006
The performances of Electro-Optical (EO) systems such as visible or infrared cameras, lasers, operating within the Marine Surface Boundary Layer (MSBL), i.e. at heights up to a few tens of meters above the sea surface, are disturbed by various propagation mechanisms: molecular attenuation, aerosol extinction, refraction and turbulence.
Claverie, Jacques, Dion, D.
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