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Author Li, Fusheng; Chen, Yuming; Liu, Yang; Chen, Dahua url  doi
openurl 
  Title (up) Comparative in Situ Study of LEDs and HPS in Road Lighting Type Journal Article
  Year 2012 Publication LEUKOS: The Journal of the Illuminating Engineering Society of North America Abbreviated Journal Leukos  
  Volume 8 Issue 3 Pages 205-214  
  Keywords Roadway lighting, visibility, LED, high-pressure sodium; LED lighting; HPS, STV, achromatic target, colored target  
  Abstract The effect of spectrum on the visibility of roadway lighting targets was investigated. The experiment focused on the relation between average visibility ratings and small target visibility (STV) under installations that employed LED and HPS light sources. Achromatic targets were more visible under LEDs illumination conditions than under HPS illumination conditions. The results also suggest that the visibility of colored objects on the road was better under LEDs illumination conditions in comparison to HPS. The results cannot be generalized to all LED light sources, but are likely indicative of LEDs with similar spectral power distributions (SPDs). Relative visibility under source types with different SPDs, and which provide different luminance distributions, should merit consideration when selecting a light source for roadway lighting.  
  Address Department of Illuminating Engineering & Light Sources, School of Information Science and Engineering, Fudan University, China  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 337  
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Author Wojnicki, I., Komnata, K., & Kotulski, L. url  openurl
  Title (up) Comparative Study of Road Lighting Efficiency in the Context of CEN/TR 13201 2004 and 2014 Lighting Standards and Dynamic Control Type Journal Article
  Year 2019 Publication Energies Abbreviated Journal  
  Volume 12 Issue 8 Pages 1-14  
  Keywords Economics; Energy; Lighting; Planning  
  Abstract This paper presents a comparative study of differences in energy consumption while applying 2004 and 2014 releases of the CEN/TR 13201 standard for lighting designs. Street lighting optimal design and its optimization is discussed. To provide a reliable comparison, optimal designs for a given representative set of streets were calculated. The optimization was performed by newly developed software. As a test bed, a set of streets was selected with varying physical and traffic characteristics. The energy consumption was measured on the same set of streets both statically, which assumed the same lighting levels throughout night, and with a dynamic control, which adjusted lighting based on traffic intensity. For experiments with the dynamic control, one year of traffic intensity data were used. The findings confirm increased economical impact of dynamic control for the 2014 standard, which results in significant energy saving.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2348  
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Author Walkling, A.; Schierz, C. url  openurl
  Title (up) Comparison between the CIE and LITG Method for Minimizing Obtrusive Glare Caused by Bright Luminaires in the Field Type Journal Article
  Year 2011 Publication In CIE 27th Session Abbreviated Journal  
  Volume Issue Pages 139–143  
  Keywords Lighting  
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  Notes Approved no  
  Call Number LoNNe @ kagoburian @ Serial 650  
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Author Vitta, P.; Dabasinskas, L.; Tuzikas, A.; Petrulis, A.; Meskauskas, D.; Zukauskas, A. url  doi
openurl 
  Title (up) Concept of Intelligent Solid-State Street Lighting Technology Type Journal Article
  Year 2012 Publication Electronics and Electrical Engineering Abbreviated Journal ElAEE  
  Volume 18 Issue 10 Pages  
  Keywords outdoor lighting; street lighting; LED; LED lighting; energy consumption; algorithm design and analysis; electromagnetic interference  
  Abstract Street and road lighting consumes about ~2 % of global electric power and the trade-off between energy saving and social needs for traffic safety, crime prevention, aesthetic comfort, etc. has to be established. A wide range investigation of an intelligent solid-state street lighting system prototype equipped with LED-based luminaires, motion sensors and microcontrollers with power-line-communication interfaces was performed under real outdoor conditions. The two-level and two-zone street illumination method was implemented basing on psychophysical investigation. The decrease of efficiency under the dimming conditions and significant electromagnetic interference in the frequency range of tens and hundreds MHz were identified as limiting factors of conventional current regulating ICs and the necessity of further improvement was pointed out.  
  Address Institute of Applied Research, Vilnius University, Sauletekio av. 9-III, LT-10222 Vilnius, Lithuania  
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  ISSN 1392-1215 ISBN Medium  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 329  
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Author Hong, Y.; Lee, S.; Choi, J.; Jin, Y.; Won, J.; Hong, Y. url  doi
openurl 
  Title (up) Conditional Controlled Light/Dark Cycle Influences Exercise-Induced Benefits in a Rat Model with Osteoarthritis: In Vitro and In Vivo Study Type Journal Article
  Year 2019 Publication Journal of Clinical Medicine Abbreviated Journal J Clin Med  
  Volume 8 Issue 11 Pages 1855  
  Keywords Animals; environmental lighting; inflammation; musculoskeletal homeostasis; physical exercise  
  Abstract Physical exercise has long been recommended as a treatment for osteoarthritis (OA), though its effects vary based on the exercise protocol. Here, we examined whether environmental lighting conditions influence the anti-inflammatory benefits of exercise in a rat model of OA. Moderate-intensity treadmill exercise (Ex) was performed for six weeks under a 12:12 h light/dark (L/D) cycle, and compared against rats housed in a 24 h continuous light (L/L) environment. L/L conditions were associated with serological changes shortly after OA induction, which exacerbated the inflammatory microenvironment in the joint. Differentiation capacity was also impaired in bone precursor cells isolated from normal rats maintained under L/L conditions, despite elevated inflammatory responses. Exercise training under L/L conditions led to increased corticosterone levels in the blood, which exacerbated the progression of cartilaginous and synovial lesions. Osteoporotic phenomena were also observed in exercise-trained rats maintained under L/L conditions, along with inflammation-induced catabolism in the gastrocnemius muscle. Aberrant light/dark cycle conditions were also found to be associated with suppression of splenic Cry1 expression in exercise-trained rats, leading to dysregulation of immune responses. Taken together, these data suggest that lighting condition may be an important environmental factor influencing the exercise-induced benefits on OA.  
  Address Department of Medicine, Division of Hematology/Oncology, Harvard Medical SchoolBeth Israel, Deaconess Medical Center, Boston, MA 02215, USA. yonghong@inje.ac.kr  
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  ISSN 2077-0383 ISBN Medium  
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  Notes PMID:31684092 Approved no  
  Call Number GFZ @ kyba @ Serial 2729  
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