Estimation of illuminance on the South facing surfaces for clear skies in iran.

Vertical Illuminance Measurement for Clear Skies in Tehran

برآورد روشنایی کافی روز و روشنایی مفید روز در شهرکهای صنعتی استان

Background and aimsApart from visual effects of daylight it has observed to elicit powerfulnon visual effects. It controls the circadian rhythm of hormone secretions and body temperaturewith implications for sleep/wake states, alertness, mood and behavior. In this study new metricscalled "Daylight Autonomy" and "Useful Daylight Illuminance" were calculated utilizing southfacing vertical illumin...

Application of Geospatial Information System for the Study of Illuminance in Carpet Weaving Workshops in Bokan, Iran

Background: Carpet weaving is an occupation that requires sufficient and appropriate lighting. The lighting in carpet weaving workshops affects the productivity and the physical and mental health of workers. Therefore, the evaluation of the illumination and the identification of work stations requiring lighting modifications will be helpful in promotion of the health and safety of workers in ca...

Analyzing the angles of building orientation for solar energy use (Case study: Tehran city)

Introduction and Background: One of the approaches to reduce fossil fuel consumption and their pollution in cities, is to pay attention to the climatic conditions and ecosystems of the region and to use renewable energy in architecture and the design of buildings; This subject in the case for Tehran metropolis is more important, due to the high concentration of population and the activity and, ...

Testing avian compass calibration: comparative experiments with diurnal and nocturnal passerine migrants in South Sweden

Cue-conflict experiments were performed to study the compass calibration of one predominantly diurnal migrant, the dunnock (Prunella modularis), and two species of nocturnal passerine migrants, the sedge warbler (Acrocephalus schoenobaenus), and the European robin (Erithacus rubecula) during autumn migration in South Sweden. The birds' orientation was recorded in circular cages under natural cl...