Results 11 to 20 of about 810,892 (295)

Lightness constancy: ratio invariance and luminance profile [PDF]

open access: yes, 2009
The term simultaneous lightness constancy describes the capacity of the visual system to perceive equal reflecting surfaces as having the same lightness despite lying in different illumination fields.
Agostini, Tiziano   +2 more
core   +1 more source

An Introduction to the Relationship between the Divine Revelation and Illumination with a Focus on the Qur'an and Islamic Narrations [PDF]

open access: yesپژوهش نامه معارف قرآنی, 2013
Mystic illumination is a topic area whose relationship with the Divine Revelation needs to be discussed. This paper aims to study this relationship by, first, referring to dictionaries and lexicons, the Qur'an verses and sayings of mystics.
hesamodin khalatbari
doaj   +1 more source

Illumination in binaries [PDF]

open access: yes, 1996
We give a simple, but accurate method that can be used to account for illumination in compact binary systems which have a low-mass companion, even if spherically symmetric illumination of the secondary star (not necessarily on the main sequence) is not ...
Hameury, J. -M., Ritter, H.
core   +2 more sources

Simultaneously Improve White LED Omni-Directional Package Efficacy and Spatial Color Uniformity on Scattered Photon Extraction Technology

open access: yesCrystals, 2018
The Scattered Photon Extraction (SPE™) based on the concept of TIR lens combined with remote phosphor is proven to be one of the effective solutions for improving white LED efficiency, and it provides the omnidirectional light distribution for ...
Tsung-Xian Lee, Yun-Chieh Huang
doaj   +1 more source

Usability Evaluation for the Integration of Library Data Analysis and an Interactive Artwork by Sensing Technology

open access: yesApplied Sciences, 2020
In this research, we propose innovative ideas for digital art combined with educational applications for the library. It also presents the library’s information services to be more humane and interesting.
Yuh-Shihng Chang, Kuo-Jui Hu
doaj   +1 more source

Experimental Evaluation of Thermal and Lighting Performance Using Double Dynamic Insulated Glazing

open access: yesBuildings, 2022
Designing windows in hot climates that allow occupants to easily control their preferences in a smart home is of considerable importance. This paper aims to contribute to this topic by examining the potential of a smart window system that has double ...
Abdultawab M. Qahtan   +1 more
doaj   +1 more source

Development of Optical Fiber-Based Daylighting System and Its Comparison

open access: yesEnergies, 2015
Fiber-optic daylighting systems have been shown to be a promising and effective way to transmit sunlight in the interior space whilst reducing electric lighting energy consumption.
Irfan Ullah, Allen Jong-Woei Whang
doaj   +1 more source

Encoding of arbitrary micrometric complex illumination patterns with reduced speckle [PDF]

open access: yes, 2019
In nonlinear microscopy, phase-only spatial light modulators (SLMs) allow achieving simultaneous two-photon excitation and fluorescence emission from specific regionof-interests (ROIs). However, as iterative Fourier transform algorithms (IFTAs) can only
Carbonell Leal, Miguel   +3 more
core   +1 more source

Optimal illumination scheme for isotropic quantitative differential phase contrast microscopy [PDF]

open access: yes, 2019
Differential phase contrast microscopy (DPC) provides high-resolution quantitative phase distribution of thin transparent samples under multi-axis asymmetric illuminations.
Chen, Qian   +5 more
core   +1 more source

Light-Induced Sulfur Transport inside Single-Walled Carbon Nanotubes

open access: yesNanomaterials, 2020
Filling of single-walled carbon nanotubes (SWCNTs) and extraction of the encapsulated species from their cavities are perspective treatments for tuning the functional properties of SWCNT-based materials.
Olga V. Sedelnikova   +8 more
doaj   +1 more source

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