Artificial light at night (ALAN) affects biodiversity conservation through its impacts on spatio-temporal distribution patterns of species, in particular bat species. The development this threat underlines the urgency to adopt lighting practices (characteristics) that have least impact most vulnerable species still present semi-natural areas. It is therefore crucial better assess relative effec...

Solar power plants are a suitable alternative for solving the energy crisis in rural areas Indonesia because it has abundant solar potential. South Sumatra is second area with largest potential Indonesia, after East Nusa Tenggara. The Dabuk Rejo village not all covered by street lighting facilities Sumatra. Hence, plant problem cheap, easy to maintain, and operate. Based on observation field, p...

Energy efficiency is currently a very popular topic because the world's need for energy continues to increase every year. Street lighting one sector that has great potential be targeted efficiency. The use of energy-saving street technology not easy realize, due limited technical knowledge, namely, components do meet Indonesian National Standard. Meanwhile, non-technical problems are budgets in...

BACKGROUND Physical activity is likely to be determined as a complex interplay between personal, interpersonal, and environmental factors. Studying the built environment involves expanding the focus from the individual perspective to a public health one. Therefore, the objetive of this study was to examine the association between the built environment and objectively-measured physical activity ...

Public lighting is one of the criteria for development society, in addition to which it important human life, as ensures safety and security during night, but this may lead an increase energy consumption therefore there a deficit bills. This research offers smart street system that has been implemented tested at pilot site consists 9 LED lights order reduce without compromising users. The devel...

The effects of light pollution problems in metropolitan areas are investigated in this study. Areas of Hong Kong are used as the source of three typical study cases. One case represents the regional scale, a second represents the district scale, and a third represents the street scale. Two light pollution parameters, Night Sky Brightness (NSB) and Street Light Level (SLL), are the focus of the ...

Artificial night lighting is expanding globally, but its ecological consequences remain little understood. Animals often use changes in day length as a cue to time seasonal behaviour. Artificial night lighting may influence the perception of day length, and may thus affect both circadian and circannual rhythms. Over a 3.5 month period, from winter to breeding, we recorded daily singing activity...

L IGHTING ACCOUNTS FOR ABOUT 15 PERCENT OF THE WORLD’S TOTAL ELECTRICITY CONSUMPTION, therefore a reduction of energy consumed for lighting will give a significant contribution to better utilization of the natural resources and a reduction of CO2 emissions. Recently, Light Emitting Diodes (LED) have been introduced in street lighting, building lighting, backlighting and automobiles lighting, ow...