Results 221 to 230 of about 23,068 (255)

Evaluation of Daylight regulations in buildings using daylight factor analysis method by radiance

Energy for Sustainable Development, 2019
Abstract Daylighting plays a key role in occupants' thermal and visual comfort as well as developing a sustainable environment. Windows size, shape, and the relevant room dimensions are three major factors that affect the quality and quantity of daylighting.
Salah Vaisi, Farzam Kharvari
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The computation of daylight factors in factory design

Journal of Scientific Instruments, 1940
The computation of daylight factors is becoming increasingly common in spite of its complexity. Simple protractors are described which facilitate such computations, and are suggested as being particularly useful in factory design.
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Factors Affecting Transcutaneous Bilirubin Measurement: Effect of Daylight

Pediatrics International, 1991
The purpose of this study was to determine whether daylight might affect the accuracy and reliability of TcB measurement at the forehead and sternum. One hundred and seven full‐term newborn infants were divided into two groups. Babies in group I (N = 59) were kept near the window which was sometimes directly exposed to daylight, and babies in group II (
Y, Yamauchi, I, Yamanouchi
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The daylight factor and actual illuminance ratios

Lighting Research & Technology, 1980
Measurements of daylight at hourly intervals were made during seven periods of several weeks each between May 1978 and July 1979. Illuminance was recorded externally, on horizontal and vertical surfaces, and internally, within model rooms. It was found that the ratio of internal to external illuminance varied considerably, even under heavily clouded ...
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Daylight factor prediction in atria building designs

Solar Energy, 2004
This paper investigates the main characteristics of the atrium and their influence on the daylight conditions in the adjoining space and on the atrium floor. The shape of the atrium and its orientation to the sun, the transmittance of the roof, the reflectivities of the atrium surfaces and the glazed areas are important parameters in the daylighting ...
B. Calcagni, M. Paroncini
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Portable photoelectric daylight factor meter

Journal of Scientific Instruments, 1936
The practical conditions controlling the accuracy of measurement of daylight factor are considered in the first section of the paper. A simple portable photoelectric daylight factor meter, incorporating two rectifier photoelectric cells, is described. The direct range of daylight factor measurable by the meter is from 0.03 per cent to 2.5 per cent. The
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A Daylight Factor for Clear Sky Conditions

Architectural Science Review, 1999
This paper describes a method for estimating the daylight factor under clear sky conditions. The internal illuminance is divided into two components; light received directly form the window, as a diffuse source, and light reflected from the internal surfaces of the room.
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Note on daylight factor diagrams and transmission factors of glass

Journal of Scientific Instruments, 1937
The author draws attention to certain corrections and additional matter on the subjects dealt with in his earlier paper.
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Daylight Factor

2021
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Comprehensive evaluation of window-integrated semi-transparent PV for building daylight performance

Renewable Energy, 2020
Yupeng Wu, Yanyi Sun, Dingming Liu
exaly