Results 91 to 100 of about 34,830 (254)
HeliyonProjectors are common display devices in the educational setting. However, dim projector lightbulbs or well-lit classrooms may cause blurriness in the projected image.
Zhengyin Gu +8 more
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Intelligent Office Lighting Control Using Natural Light and a GA-BP Neural Network-Based System
Applied SciencesIntelligent lighting control systems are essential for regulating office illumination. Both illuminance levels and uniformity are important factors influencing the comfort of the office lighting environment.
Rongmeng Zhang +7 more
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Understanding Behavioral Responses of Wildlife to Traffic to Improve Mitigation Planning [PDF]
, 2020 Creating and maintaining sustainable transportation systems depends in part on understanding and mitigating ecological impacts. Wildlife crossing structures (WCS) are often used to mitigate impacts on wildlife populations. WCS and existing structures may
Collins, Amy +3 more
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Discrete Applied Mathematics, 2004 A labyrinth is defined as a set of line segments \(L\) with pairwise disjoint relative interiors and their complement \(E^{2}\diagdown \bigcup L\) connected. In the paper the variants of the illumination problem previously considered for disjoint line segments are presented and analogous lower and upper bounds for minimum number of light sources ...
openaire +2 more sources
Research on the coupling effect of lighting and thermal environment under learning behavior
Results in EngineeringInfluence of multi-factor interaction on the comfort and learning efficiency are gradually receiving attention. Therefore, the interaction of PMV, color temperature and illuminance, and their effects on the lighting comfort, thermal comfort and learning ...
Shiya Zhao +5 more
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Applied Sciences, 2019 This paper aims to extend the limited bandwidth of phosphorescent white LEDs for a multiple-input single-output (MISO) visible light communication (VLC) system.
Monette H. Khadr +3 more
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Review of simulating four classes of window materials for daylighting with non-standard BSDF using the simulation program Radiance [PDF]
, 2013 This review describes the currently available simulation models for window material to calculate daylighting with the program "Radiance". The review is based on four abstract and general classes of window materials, depending on their scattering and ...
Apian-Bennewitz, Peter
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International Journal of Metrology and Quality Engineering, 2015 One of the seven base units of the International System of Units (SI), the candela, which is the unit of the luminous intensity, and its derived units are physiological units.
Pellegrino O. +3 more
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Model Calibration Methodology to Assess the Actual Lighting Conditions of a Road Infrastructure
Infrastructures, 2019 Street lighting plays an important role in the comfort and safety of drivers and pedestrians, so the control and management of the lighting systems operation and consumption is an essential service for a city. In this document, a methodology is presented
Ana Ogando-Martínez +4 more
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