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Author Hölker, F.; Moss, T.; Griefahn, B.; Kloas, W.; Voigt, C.; et al.
Title The Dark Side of Light: A Transdisciplinary Research Agenda for Light Pollution Policy Type Journal Article
Year 2010 Publication Ecol Soc Abbreviated Journal
Volume 15 Issue 4 Pages
Keywords Ecology; artificial light; energy efficiency; lighting concept; light pollution; nightscape; policy; sustainability; transdisciplinary
Abstract Although the invention and widespread use of artificial light is clearly one of the most important human technological advances, the transformation of nightscapes is increasingly recognized as having adverse effects. Night lighting may have serious physiological consequences for humans, ecological and evolutionary implications for animal and plant populations, and may reshape entire ecosystems. However, knowledge on the adverse effects of light pollution is vague. In response to climate change and energy shortages, many countries, regions, and communities are developing new lighting programs and concepts with a strong focus on energy efficiency and greenhouse gas emissions. Given the dramatic increase in artificial light at night (0 – 20% per year, depending on geographic region), we see an urgent need for light pollution policies that go beyond energy efficiency to include human well-being, the structure and functioning of ecosystems, and inter-related socioeconomic consequences. Such a policy shift will require a sound transdisciplinary understanding of the significance of the night, and its loss, for humans and the natural systems upon which we depend. Knowledge is also urgently needed on suitable lighting technologies and concepts which are ecologically, socially, and economically sustainable. Unless managing darkness becomes an integral part of future conservation and lighting policies, modern society may run into a global self-experiment with unpredictable outcomes.
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Call Number LoNNe @ christopher.kyba @ Serial 478
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Author Farahat, A.; Florea, A.; Martinez Lastra, J.L.; Branas, C.
Title Energy Efficiency Considerations for LED-based Lighting of Multipurpose Outdoor Environments Type Journal Article
Year 2015 Publication IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensingournal of Emerging and Selected Topics in Power Electronics Abbreviated Journal IEEE J. Emerging and Sel. Topics in Power Elec.
Volume PP Issue 99 Pages 1
Keywords Lighting; LED lighting; LED; optimization; lighting technology; lighting design; energy; energy efficiency
Abstract Nowadays street lighting accounts for 53% of outdoor lighting use and the market is continuously increasing. In the context of rising energy prices and growing environmental awareness, energy efficiency is becoming one of the most important criteria for street lighting systems design. LED-based lights have become the primary option for replacing conventional light bulbs, being digitally controllable, small, highly efficient, and cheap to manufacture. Advanced control strategies adapted to ambient conditions are needed to combine low energy consumption and high quality light ambience according to changing specifications. This paper describes an outdoor lighting solution aimed at energy efficient performance in the context of multipurpose outdoor environments, where control is crucial in achieving efficiency improvements. The work addresses efficiency at the component level, by optimizing the performance of LED drivers, and at system level, defining the control strategy and associated hardware infrastructure. The approach designed was tested in a real environment. The performance of the lighting installation was assessed using the web-based monitoring application, providing real-time consumption information and aggregated historical data.
Address University of Technology, Tampere, Finland.(Email: ahmed.amr.b@gmail.com)
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Publisher IEEE Place of Publication Editor
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ISSN 2168-6777 ISBN Medium
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Notes Approved no
Call Number IDA @ john @ Serial 1205
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Author Smalling, R.; Enright, J.
Title A Crusade on HSP Amber High Mast Yields Green with Plasma Type Journal Article
Year 2015 Publication Energy Abbreviated Journal Energy Engr.
Volume 112 Issue 5 Pages 12-17
Keywords Lighting; Energy; lighting technology; light-emitting plasma; lighting transition; LEP; Washington
Abstract Naval Facilities Engineering Command Northwest (NAVFAC NW) Public Works Department (PWD) Everett recently completed a lighting replacement project at Naval Station (NS) Everett, Washington, utilizing a utility energy service contract (UESC) with Bonneville Power Administration (BPA). The project replaced 74 high pressure sodium (HPS) light fixtures with modern energy saving, light-emitting plasma (LEP) fixtures atop 80-foot light poles along the piers and wharf at NS Everett. The no-glare LEP bulbs last twice as long while using less than half the power of their HPS predecessors. This project was completed at a cost of $160,000 and will result in cost avoidances in annual operating and maintenance of over $16,000, with a payback under 10 years. This UESC-financed and executed project saves one percent of the total shore energy consumption cost. Through similar efficiency projects and energy conservation efforts, NS Everett has reduced power usage by 16 percent in the past year and 40 percent since 2003.
Address 2000 West Marine View Drive, Bldg 2000, Rm 242 Everett, WA 98207
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Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language English Original Title
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Call Number IDA @ john @ Serial 1219
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Author Czeisler, C.A.
Title Perspective: casting light on sleep deficiency Type Journal Article
Year 2013 Publication Nature Abbreviated Journal Nature
Volume 497 Issue 7450 Pages S13
Keywords Human Health; Circadian Rhythm/physiology/radiation effects; Electricity/adverse effects; Humans; Jet Lag Syndrome/etiology/physiopathology/therapy; Lighting/*adverse effects; Melatonin/metabolism/secretion; Phototherapy; Sleep Deprivation/epidemiology/*etiology/*physiopathology/therapy; Suprachiasmatic Nucleus/physiology/radiation effects
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Address Division of Sleep Medicine, Harvard Medical School, and Division of Sleep Medicine, Department of Medicine, Brigham and Women's Hospital, in Boston, Massachusetts, USA. charles_czeisler@hms.harvard.edu
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ISSN 0028-0836 ISBN Medium
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Notes PMID:23698501 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 499
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Author Kantermann, T.
Title Circadian biology: sleep-styles shaped by light-styles Type Journal Article
Year 2013 Publication Current Biology : CB Abbreviated Journal Curr Biol
Volume 23 Issue 16 Pages R689-90
Keywords Human Health; Circadian Clocks/*radiation effects; Female; Humans; *Lighting; Male; *Photoperiod; *Sunlight
Abstract Light and darkness are the main time cues synchronising all biological clocks to the external environment. This little understood evolutionary phenomenon is called circadian entrainment. A new study illuminates our understanding of how modern light- and lifestyles compromise circadian entrainment and impact our biological clocks.
Address Chronobiology – Centre for Behaviour and Neurosciences, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands. thomas@kantermann.de
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Language English Summary Language Original Title
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ISSN 0960-9822 ISBN Medium
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Notes PMID:23968925 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 501
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