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Photoreceptor-specific scene statistics reveal melanopic structure in natural environments
Tabandeh N, Spitschan M.
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Useful daylight illuminances: A replacement for daylight factors
Energy and Buildings, 2006This paper describes the application of a new paradigm, called useful daylight illuminance (UDI), to assess daylight in buildings. The UDI paradigm is designed to aid the interpretation of climate-based analyses of daylight illuminance levels that are founded on hourly meteorological data for a period of a full year.
John Mardaljevic
exaly +2 more sources
Energy and Buildings, 2017
Abstract To ensure sufficient daylight in rooms, daylight performance metrics are the basic references to guide building design or to benchmark a building against another in terms of daylighting in a room. Daylight factor (DF) is the most commonly accepted daylight performance metric, but it has limitations in evaluating the daylighting of a room ...
Yu Bian
exaly +2 more sources
Abstract To ensure sufficient daylight in rooms, daylight performance metrics are the basic references to guide building design or to benchmark a building against another in terms of daylighting in a room. Daylight factor (DF) is the most commonly accepted daylight performance metric, but it has limitations in evaluating the daylighting of a room ...
Yu Bian
exaly +2 more sources
Indoor and Built Environment, 2022
The customary method for calculating daylight illuminance in a building is the daylight factor approach, which is assumed under the conventional overcast sky. However, such an approach is not flexible enough to predict diffuse illuminance in the presence of non-overcast skies.
Danny H.W. Li +3 more
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The customary method for calculating daylight illuminance in a building is the daylight factor approach, which is assumed under the conventional overcast sky. However, such an approach is not flexible enough to predict diffuse illuminance in the presence of non-overcast skies.
Danny H.W. Li +3 more
openaire +1 more source
Sociospatial Factors Explaining Daylight Saving Preferences in Australia
The Professional Geographer, 2021The regulation of time and time zones is a fundamentally geographical process that receives surprisingly little scholarly attention. Since the widespread adoption of internationally coordinated time during the industrial revolution, there have been only minor adjustments to the global distribution of time zones, most significantly in the implementation
Thomas Sigler +2 more
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A simple daylight factor meter
Journal of Scientific Instruments, 1954A simple daylight factor meter, based on a commercially available foot-candle meter, is described. An adjustable sensitivity device enables the reading to be set to a fixed value when the instrument is directed towards the open sky, thus fixing the denominator of the daylight factor fraction.
J Longmore, R G Hopkinson
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Journal of Scientific Instruments, 1931
This instrument determines mechanically the illumination at a point on a horizontal surface due to the direct light from the sky visible at that point. The instrument is set up at the point, and a telescope incorporated in it is made to traverse the boundary of the visible sky.
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This instrument determines mechanically the illumination at a point on a horizontal surface due to the direct light from the sky visible at that point. The instrument is set up at the point, and a telescope incorporated in it is made to traverse the boundary of the visible sky.
openaire +1 more source