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Author Dobler, G.; Ghandehari, M.; Koonin, S.E.; Sharma, M.S.
Title A Hyperspectral Survey of New York City Lighting Technology Type Journal Article
Year 2016 Publication Sensors (Basel, Switzerland) Abbreviated Journal Sensors (Basel)
Volume 16 Issue 12 Pages (down) 2047
Keywords Remote Sensing; Instrumentation; Lighting
Abstract Using side-facing observations of the New York City (NYC) skyline, we identify lighting technologies via spectral signatures measured with Visible and Near Infrared (VNIR) hyperspectral imaging. The instrument is a scanning, single slit spectrograph with 872 spectral channels from 0.4-1.0 mu m. With a single scan, we are able to clearly match the detected spectral signatures of 13 templates of known lighting types. However, many of the observed lighting spectra do not match those that have been measured in the laboratory. We identify unknown spectra by segmenting our observations and using Template-Activated Partition (TAP) clustering with a variety of underlying unsupervised clustering methods to generate the first empirically-determined spectral catalog of roughly 40 urban lighting types. We show that, given our vantage point, we are able to determine lighting technology use for both interior and exterior lighting. Finally, we find that the total brightness of our scene shows strong peaks at the 570 nm Na – II , 595 nm Na – II and 818 nm Na – I lines that are common in high pressure sodium lamps, which dominate our observations.
Address NYU Center for Urban Science and Progress, 1 MetroTech Center, Brooklyn, NY 11201, USA. mohit.sharma@nyu.edu
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1424-8220 ISBN Medium
Area Expedition Conference
Notes PMID:27929391 Approved no
Call Number LoNNe @ kyba @ Serial 1567
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Author Entwistle, J.; Slater, D.
Title Making space for 'the social': connecting sociology and professional practices in urban lighting design Type Journal Article
Year 2019 Publication The British Journal of Sociology Abbreviated Journal Br J Sociol
Volume 70 Issue 5 Pages (down) 2020-2041
Keywords Sociology; Society; Lighting
Abstract Lighting is increasingly recognized as a significant social intervention by both lighting professionals and academic social scientists. However, what counts as 'the social' is diverse and contested, with consequences for what kind of 'social' is performed or invented. Based on a long-term research programme, we argue that collaboration between sociologists and lighting professionals requires negotiating discourses and practices of 'the social'. This paper explores the quality and kinds of spaces made for 'the social' in professional practices and academic collaborations, focusing on two case studies of urban lighting that demonstrate how the space of 'the social' is constrained and impoverished by an institutionalized division between technical and aesthetic lighting. We consider the potential role of sociologists in making more productive spaces for 'the social' in urban design, as part of the central sociological task of 'inventing the social' (Marres, Guggenheim and Wilkie 2018) in the process of studying it.
Address Department of Sociology, London School of Economics; d.slater(at)lse.ac.uk
Corporate Author Thesis
Publisher Wiley Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0007-1315 ISBN Medium
Area Expedition Conference
Notes PMID:30864152 Approved no
Call Number GFZ @ kyba @ Serial 2265
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Author Hong, Y.; Lee, S.; Choi, J.; Jin, Y.; Won, J.; Hong, Y.
Title 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 (down) 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
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2077-0383 ISBN Medium
Area Expedition Conference
Notes PMID:31684092 Approved no
Call Number GFZ @ kyba @ Serial 2729
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Author Kyba, C.C.M.; Hänel, A.; Hölker, F.
Title Redefining efficiency for outdoor lighting Type Journal Article
Year 2014 Publication Energy & Environmental Science Abbreviated Journal Energy Environ. Sci.
Volume 7 Issue 6 Pages (down) 1806
Keywords *Lighting; outdoor lighting; luminous efficiency; lighting standards; public policy; illuminance; street lighting
Abstract Improvements in the luminous efficiency of outdoor lamps might not result in energy savings or reductions in greenhouse gas emissions. The reason for this is a rebound effect: when light becomes cheaper, many users will increase illumination, and some previously unlit areas may become lit. We present three policy recommendations that work together to guarantee major energy reductions in street lighting systems. First, taking advantage of new technologies to use light only when and where it is needed. Second, defining maximum permitted illuminances for roadway lighting. Third, defining street lighting system efficiency in terms of kilowatt hours per kilometer per year. Adoption of these policies would not only save energy, but would greatly reduce the amount of light pollution produced by cities. The goal of lighting policy should be to provide the light needed for any given task while minimizing both the energy use and negative environmental side effects of the light.
Address Leibniz Institute of Freshwater Ecology and Inland Fisheries, Germany
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1754-5692 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 244
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Author Monsere, C.M.; Fischer, E.L.
Title Safety effects of reducing freeway illumination for energy conservation Type Journal Article
Year 2008 Publication Accident; Analysis and Prevention Abbreviated Journal Accid Anal Prev
Volume 40 Issue 5 Pages (down) 1773-1780
Keywords Lighting; Accidents, Traffic/*statistics & numerical data; *Automobile Driving; *Conservation of Energy Resources; Environment Design; Humans; *Lighting; Models, Statistical; Oregon; Safety; Wounds and Injuries/epidemiology
Abstract The addition of illumination where none was present is generally believed to have a positive effect on motor vehicle safety; reducing the frequency, as well as the severity of crashes. The operational cost of illumination, however, can make it a candidate for conservation during periods of high energy costs. In response to a forecasted energy shortage, the Oregon Department of Transportation selectively reduced illumination on interstate highways as part of an energy-saving effort. The reductions occurred at 44 interchanges and along 5.5 miles of interstate highway. This paper presents the results of a crash-based analysis of the changes in safety performance using an empirical-Bayes observational methodology. The study found an increase in reported crashes where the lineal lighting was reduced both in total crashes (28.95%, P=0.05) and injury night crashes (39.21%, P=0.07). Where full interchange lighting was reduced to partial lighting, a 2.46% increase (P=0.007) in total night crashes was observed. Injury night crashes, however, decreased by 12.16% (P<0.001) though day injury crashes also decreased at these locations. Unexpectedly, for interchanges where illumination was reduced from partial plus to partial, a 35.24% decrease (P<0.001) in total crashes and 39.98 (P<0.001) decrease in injury night crashes was found, though again, day crashes also decreased.
Address Department of Civil & Environmental Engineering, Portland State University, P.O. Box 751, Portland, OR 97207-0751, USA. monsere@pdx.edu
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0001-4575 ISBN Medium
Area Expedition Conference
Notes PMID:18760107 Approved no
Call Number LoNNe @ kagoburian @ Serial 643
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