Results 121 to 130 of about 15,115 (238)

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

open access: yesEnergies, 2018
Most educational buildings in southern Spain do not meet current energy requirements as weak thermal envelopes and the lack of cooling systems lead to severe discomfort in classrooms, especially when temperatures are above 30 °C.
Carmen María Calama-González   +2 more
doaj   +1 more source

Interrelations of Hourly and Daily Global Illuminance

open access: yes, 2020
It has been found that the values of ratio of hourly global illuminance to daily global illuminance, r vt , are very close to the corresponding values for global solar radiation, r t , examined from the measured data of ...
P Ravikumar
core  

Illuminating labyrinths

open access: yesDiscrete 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

Illuminance measurements of roadways

open access: yes, 2006
4 f. : il.The aim of this paper is to present the first initiatives of the photometric group at Inmetro to analyze and test measurement procedures of lighting performance of roadways.
Grieneisen, Hans Peter Henrik   +3 more
core  

Dos & Don’ts in Measuring Illuminance With Smartphones

open access: yes
We explored the reliability of smartphones for measuring illuminance and discussed their use on occupational lighting assessments. In a 20–1000 lux range, we compared the illuminance readings from three Android applications on two smartphones versus a ...
Dumit, María Clarisa   +3 more
core   +1 more source

Illuminance requirements for emergency lighting

open access: yes, 1989
There are many factors that may affect the illuminance requirements for emergency lighting. Among these are illuminance uniformity, ages of occupants, familiarity with the space, crowd, size, length of escape route, presence of exit signs, and the ...
Ouellette, M. J., Rea, M. S.
core  

Exploring deep learning techniques for illuminance estimation

open access: yes
In recent years, deep learning techniques had a revolutionary impact on several domains, including computer vision and image processing. This research paper focuses on exploring deep learning methods to achieve precise illuminance estimation, which holds
Arango-López, Jeferson   +4 more
core   +1 more source

Robotic system for indoor illuminance map generation

open access: yes
International audienceThe paper describes Romulux, a mobile robot equipped with 3D LiDAR carrying an illuminance meter and dedicated to measure indoor lighting quantity.
Guyonneau, Rémy   +2 more
core   +1 more source

Measure for Measure. Semi-cylindrical illuminance: a semi-conceived measure? [PDF]

open access: yes, 2017
Semi-cylindrical illuminance has been promoted as a better measure for lighting design than vertical illuminance.
Fotios, S.
core  

Illumination Standards [PDF]

open access: yesAmerican Journal of Public Health and the Nations Health, 1946
openaire   +3 more sources

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