Results 21 to 30 of about 45,495 (276)

Coloronyms in water resource (on the material of German and Kyrgyz languages) [PDF]

open access: yesBIO Web of Conferences
The article is a detailed analysis of linguocultural aspects of the use of coloronyms in professionally marked units, namely in the context of water resources.
Beksultanova Gulzada Azimkanovna   +3 more
doaj   +1 more source

Achromatic color categories [PDF]

open access: yesPerception & Psychophysics, 1985
Sternheim and Boynton’s (1966) continuous judgmental color-naming technique was used to assess the elemental nature of achromatic colors. Results from three subjects indicate that the names “black” and “white” are necessary and sufficient to describe achromatic test lights associated with the name “gray.” On the basis of the criteria that establishes a
P C, Quinn, B R, Wooten, E J, Ludman
openaire   +2 more sources

Color contributes to object-contour perception in natural scenes [PDF]

open access: yes, 2017
The magnitudes of chromatic and achromatic edge contrast are statistically independent and thus provide independent information, which can be used for object-contour perception.
Gegenfurtner, Karl R., Hansen, Thorsten
core   +1 more source

See-Through Near-Eye Display with Built-in Prescription and Two-Dimensional Exit Pupil Expansion

open access: yesApplied Sciences, 2020
We propose a see-through near-eye display featuring an exit pupil expander (EPE), which is composed of two multiplexed slanted gratings. Via a two-dimensional expansion, the exit pupil (EP) is able to be enlarged up to 10 × 8 mm2.
Wenbo Zhang   +6 more
doaj   +1 more source

Polarization-independent achromatic Huygens’ metalens with large numerical aperture and broad bandwidth

open access: yesNanophotonics, 2023
Achromatic lenses, which have the same focal length regardless of the illumination frequency, find strong applications in imaging, sensing, and communication systems.
He Xiaoluo   +3 more
doaj   +1 more source

Ultra-broadband achromatic metalens with high performance for the entire visible and near-infrared spectrum

open access: yesResults in Physics, 2023
Metalenses provide unprecedented opportunities to overcome the limitations of conventional refractive lenses, which have been extensively studied to achieve achromatic focusing and imaging in various wavebands. However, it is a challenging task to create
Yechuan Zhu   +6 more
doaj   +1 more source

A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]

open access: yes, 2019
Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research.
Baden, T, Nevala, N E
core   +1 more source

Object knowledge modulates colour appearance [PDF]

open access: yes, 2011
We investigated the memory colour effect for colour diagnostic artificial objects. Since knowledge about these objects and their colours has been learned in everyday life, these stimuli allow the investigation of the influence of acquired object ...
ActiveWire Inc   +16 more
core   +3 more sources

Exploring EEG Effective Connectivity Network in Estimating Influence of Color on Emotion and Memory

open access: yesFrontiers in Neuroinformatics, 2019
Color is a perceptual stimulus that has a significant impact on improving human emotion and memory. Studies have revealed that colored multimedia learning materials (MLMs) have a positive effect on learner’s emotion and learning where it was assessed by ...
Meei Tyng Chai   +6 more
doaj   +1 more source

Apochromatic X-ray focusing

open access: yesLight: Science & Applications, 2023
Achromatic doublets are combinations of two individual lenses designed to focus different wavelengths of light in the same position. Apochromatic optics are improved versions of the achromatic schemes which extend the wavelength range significantly. Both
Umut T. Sanli   +8 more
doaj   +1 more source

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