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Author Peña-García, A.; Sędziwy, A. url  doi
openurl 
  Title Optimizing Lighting of Rural Roads and Protected Areas with White Light: A Compromise among Light Pollution, Energy Savings, and Visibility Type Journal Article
  Year (down) 2019 Publication Leukos Abbreviated Journal Leukos  
  Volume in press Issue Pages 15502724.2019.1574138  
  Keywords Lighting; Energy; Skyglow; LED  
  Abstract The broad implementation of light emitting diode (LED) light sources in public lighting has become a revolution in recent years. Their low power consumption and good performance (extremely low onset time, long lifetime, high efficacy) make LEDs an optimal solution in most outdoor applications. In addition, the white light emitted by the vast majority of LEDs used in public lighting and their good color rendering improve well-being, comfort, and safety in cities, especially in commercial zones and urban centers. However, regulations on light pollution that have been developed in some countries in parallel to the introduction of LED lighting impose strong constraints to white light emission, which is present due to the higher Rayleigh scattering of short wavelengths. These regulations request filtering blue wavelengths in some protected areas and thus limit the projects to high- or low-pressure sodium sources or amber LEDs. In this work, the pros and cons of white and amber LED lighting in rural areas are analyzed and compared through simulations made on a typical rural lighting situation and considerations based on efficiency, visual performance, nonvisual effects, and light pollution. The most important conclusion is that Rayleigh scattering seems to prevail in the current considerations on light pollution, whereas other important aspects affecting safety and sustainability are are not considered. Accurate designs can decrease light pollution without constraints against white LEDs. The objective of this work is to provide evidence leading to consider light pollution from a more general perspective in the benefit of humans and the environment.  
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  ISSN 1550-2724 ISBN Medium  
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  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2380  
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Author Wang, G., Wang, S., Zhang, L., Sun, F., Yan, F., & Yang, X. url  doi
openurl 
  Title A New Light Control Method with Charge Induction of Moving Target Type Journal Article
  Year (down) 2019 Publication IEEE Sensors Journal Abbreviated Journal  
  Volume 19 Issue 16 Pages  
  Keywords Lighting; Instrumentation  
  Abstract Intelligent lamp control system has been widely studied all over the world because of its energy saving and social effect. In this paper, a new intelligent lamp control method based on charge induction for moving target is proposed. The detection model is established with the surface charge induction and verified by a luggage detection experiment. The intelligent lamp control system using the detection method is carried out. The performance of the system demonstrates that the proposed method can detect the moving target at any orientation whatever with or without occlusion and the detection distance can reach more than 3 m for the pedestrian.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2470  
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Author Lin, J.; Ding, X.; Hong, C.; Pang, Y.; Chen, L.; Liu, Q.; Zhang, X.; Xin, H.; Wang, X. url  doi
openurl 
  Title Several biological benefits of the low color temperature light-emitting diodes based normal indoor lighting source Type Journal Article
  Year (down) 2019 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 9 Issue 1 Pages 7560  
  Keywords Human Health; Lighting  
  Abstract Currently, light pollution has become a nonnegligible issue in our daily life. Artificial light sources with high color temperature were deem to be the major pollution source, which could induce several adverse effects on human's health. In our previous research, we have firstly developed an artificial indoor light with low color temperature (1900 K). However, the biological effects of this artificial light on human's health are unclear. Here, four artificial lights (1900 K, 3000 K, 4000 K and 6600 K) were used to evaluate some biological changes in both human (in total 152 person-times) and murine models. Compared with other three high color temperature artificial lights, our lights (1900 K) presented a positive effect on promoting the secreting of melatonin and glutamate, protecting human's eyes, accelerating would healing and hair regeneration. These systematical studies indicated that the proposed low color temperature (1900 K) light could provide several significant benefits in human's daily life.  
  Address The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, 330031, China. wangxiaolei@ncu.edu.cn  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:31101840 Approved no  
  Call Number GFZ @ kyba @ Serial 2501  
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Author Korompeli, A.; Kavrochorianou, N.; Molcan, L.; Muurlink, O.; Boutzouka, E.; Myrianthefs, P.; Fildissis, G. url  doi
openurl 
  Title Light affects heart rate's 24-h rhythmicity in intensive care unit patients: an observational study Type Journal Article
  Year (down) 2019 Publication Nursing in Critical Care Abbreviated Journal Nurs Crit Care  
  Volume 24 Issue 5 Pages 320-325  
  Keywords Lighting; Human Health; Heart Rate; ICU; Circadian Rhythm  
  Abstract BACKGROUND: Intensive care unit (ICU) patients experience two affronts to normal 24-h rhythms: largely internal events such as medication and external factors such as light, noise and nursing interventions. AIMS AND OBJECTIVES: We investigated the impact of light variance within an ICU on 24-h rhythmicity of three key physiological parameters: heart rate (HR), mean arterial blood pressure (MAP) and body temperature (BT) in this patient population. DESIGN: Patients were assigned to beds either in the 'light' or 'dark' side within a single ICU. An actigraph continuously recorded light intensity for a 24-72-h period. METHODS: Measurements of HR, MAP and BT were recorded every 30 min. RESULTS: HR, MAP and BT did not follow 24-h rhythmicity in all patients. Higher light exposure in the Light Side of the ICU (122.3 versus 50.6 lx) was related to higher HR (89.4 versus 79.8 bpm), which may translate to clinically relevant outcomes in a larger sample. Duration of stay, the one clinical outcome measured in this study, showed no significant variation between the groups (p = 0.147). CONCLUSIONS: ICU patients are exposed to varying light intensities depending on bed positioning relative to natural sunlight, affecting the 24-h rhythm of HR. Larger, well-controlled studies also investigating the effect of relevant light intensity are indicated. RELEVANCE TO CLINICAL PRACTICE: Light is a variable that can be manipulated in the constrained environment of an ICU, thus offering an avenue for relatively unobtrusive interventions.  
  Address National and Kapodistrian University of Athens, University ICU, Ag. Anargyroi General Hospital, Athens, Greece  
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  Series Volume Series Issue Edition  
  ISSN 1362-1017 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:31087602 Approved no  
  Call Number GFZ @ kyba @ Serial 2502  
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Author Sielachowska, M., & Zajkowski, M. url  doi
openurl 
  Title Assessment of Light Pollution Based on the Analysis of Luminous Flux Distribution in Sports Facilities Type Journal Article
  Year (down) 2019 Publication Engineer of the XXI Century Abbreviated Journal  
  Volume 70 Issue Pages 139-150  
  Keywords Lighting  
  Abstract The article attempts to assess the amount of light pollution with artificial light from sports facilities. The football stadium has been analysed, while considering a few configurations that take into account different coefficients of reflection of the luminous flux for the tribunes and the object main board. Simplified model of the football stadium was introduced to the DIALux simulation software, and then computer calculations were made for selected variants. In addition, the applicable normative requirements in the field of lighting systems were discussed and the mathematical distribution of the luminous flux in the examined sports facility was presented.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2504  
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