Current discomfort glare prediction metrics usually account for at least one of the two categories effects that induce – saturation and contrast effects. Saturation-driven (overall illuminance on eye) are suited brightly lit scenes in general. On contrary, contrast-driven (luminance ratio field view) perform better high conditions such as with small-sized bright sources. Only a few existing con...

Daylight dynamic metrics provide an alternative approach for the assessment of energy savings promoted by lighting control systems. This research aims to quantify allowed smart controls using continuous and overcast daylight autonomy, novel tested monitoring a mesh illuminance-meters in test cells over one-year period. Three types are proposed, based on switches dimmers, some which were managed...

in this paper, we study a class of finsler metrics which contains the class of p-reducible andgeneral relatively isotropic landsberg metrics, as special cases. we prove that on a compact finsler manifold,this class of metrics is nothing other than randers metrics. finally, we study this class of finsler metrics withscalar flag curvature and find a condition under which these metrics reduce to r...

This paper presents a study that investigates lighting qualities within three computer labs from long-term perspective. Subjective assessments 173 participants were collected. Accurately calibrated simulation models of generated to simulate annual quantities based on horizontal illuminance (Eh), vertical (Ev) and monitor (Em). Gender, eyewear access exterior views have impacts subjective assess...

Yazd is located in a hot-dry region with harsh weather conditions. Houses an iwan were suitable for establishing comfort conditions the past. An evaluation of visual residential courtyard buildings city was carried out by investigating effects depth and ratio adjacent rooms' openings. Research currently being conducted on optimal model effort to facilitate sustainable development increase use s...

Good daylighting design in buildings not only provides a comfortable luminous environment, but also delivers energy savings and comfortable and healthy environments for building occupants. The importance of using daylight in educational buildings is because of the synchrony of operating hours of the school and daylight plenitude the sky. Daylight improves environmental quality and saves energy ...

background: this paper investigated the effect of daylight on morning and night melatonin, subjective general health using ghq questionnaire, sleepiness and alertness on elderly who lived in nursing houses. methods: nineteen nursing home residents participated voluntarily. they exposed to daylight from 9 to 10 a.m. and from 4 to 5 p.m. for 6 wk. the level of melatonin in the morning and at nigh...

Typical daylight extends from blue (morning sky) to orangey red (evening sky) and is represented mathematically as the Daylight Locus in color space. In this study, we investigate the impact of this daylight variation on human color vision. Thirty-eight color normal human observers performed an asymmetric color match in the near peripheral visual field. Unique hues were identified using a namin...