This paper presents the first global estimate of lighting energy use, costs, and associated greenhouse-gas emissions. Based on a compilation of estimates for 41 countries representing approximately 63% of the world’s population, we develop a model for predicting lighting electricity use for other countries where data are lacking. The corresponding lighting-related electricity production for the...

Our research investigates how public displays of personal information can be used to motivate behavior change. We describe six characteristics that are important for such information displays to embody. These build on two well-established methods for motivating behavior: presenting pertinent information at the point-of-decision and leveraging social pressure. To investigate how these personal-p...

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A lightning strike could bring thousands mega-ampere of current in a blink of eyes. As a result, a failure of grounding the strike may cause serious damage to the home and industrial appliances and gadgets. Hence, a lightning protection system is essential to the current transmission system. Lighting is a natural phenomenon that is unavoidable. Hence, the study of the properties and characteris...

Lighting practitioners and laypeople alike believe that the quality of the luminous environment can influence task performance, comfort, and well-being. There is mounting concern that the quality of the lit environment will decline in parallel to lighting energy use as energy codes and standards come into effect; however, there is no consensus about what constitutes good lighting quality. Broad...

this study evaluated the effect of the intermittent light program on serum and brain melatonin concentrations, antioxidant enzyme activities, and homocysteine concentration in broiler chickens. a total of 60 one-day-old broiler chickens (cobb 500) were distributed in three light-proof controlled rooms (20 chicks per room). all birds were reared in continuous light until 3 days of age. then, chi...

Smart city is an attractive way of making the city more livable through intelligent solutions that are enabled by information and communication technology. Regarding the lighting system, it achieves the perfect balance between beautiful city ambience and preserving the darkness that makes cities more livable. As a smart city component, a public lighting system offers much more than light itself...

Kerosene subsidy reform is a key policy concern in India and other developing countries. As kerosene is widely used for lighting in India, any price changewill likely have considerable public welfare impacts on the large fraction of the poorwho do not have access to reliable electricity supply for lighting. In this study, we assess historic kerosene use for residential lighting across populatio...