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Author Hasegawa‐Ohira, M., Kato, Y., & Nomura, S. url  doi
openurl 
  Title Effects of LED lighting exposure during sleep on endocrine and autonomic nervous system activity Type Journal Article
  Year 2019 Publication IEEJ Transactions on Electrical and Electronic Engineering Abbreviated Journal  
  Volume 14 Issue 6 Pages 894-898  
  Keywords Human Health; LED; endocrine; sleep; sympathetic nervous system; hypothalamic–pituitary–adrenal pathway  
  Abstract The present study aimed to investigate the effect of an LED lighting on endocrine and autonomic nervous system activity during sleep. In a within‐subject experimental design, participants, ten healthy male students, took a 6‐h sleep from 0:00–6:00 am in an environmentally controlled room during which they were exposed to an LED lighting of approximately 50 lx for 90 min from 1:30–3:00 am, whereas there was no light exposure under the control condition. Compared to the control condition, the heart rate (HR) during light exposure, 1 h before awakening, and 1 h after awakening, was significantly higher under the light exposure condition. Salivary melatonin under the light exposure was significantly higher than that under control condition, meanwhile there was no difference in salivary cortisol secretion. Light exposure during sleep may enhance the sympathetic nervous system activation but not give an impact on the hypothalamic–pituitary–adrenal pathway during sleep.  
  Address Faculty of Education, Shiga University, 2‐5‐1 Hiratsu Ostu, Shiga, 520‐0862 Japan; ohira@edu.shiga-u.ac.jp  
  Corporate Author Thesis  
  Publisher Wiley Place of Publication Editor  
  Language English Summary Language English Original Title  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2347  
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Author Wojnicki, I., Komnata, K., & Kotulski, L. url  openurl
  Title 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 Chang, C., Chang, K., & Fu, W. url  doi
openurl 
  Title Testing of Various Monochromatic LED Lights Used in Supplemental Irradiation of Lettuce in Modern urban Rooftop Polytunnels Type Journal Article
  Year 2019 Publication Applied Engineering in Agriculture Abbreviated Journal  
  Volume Issue Pages  
  Keywords Plants  
  Abstract Urban farming could provide both vegetable growers and urban dwellers in general with more direct access to various fresh vegetables. Nevertheless, certain challenging problems associated with urban farming, including a lack of cultivation space and the effects of urban heat islands, must still be solved. Relatedly, a grower must, in some cases, also know how to utilize various forms of technology, such as lighting systems, as well as factors such as water availability. In this study, an original rooftop polytunnel design for lettuce (Lactuca sativa cv. Lollo Rosso) cultivation equipped with a hydroponic system and light emitting diodes (LEDs) is proposed. Various monochromatic lights were also tested for their effects on different quality parameters of lettuce. Specifically, supplemental red (655 nm), blue (445 nm), green (520 nm), and ultraviolet (380 nm) LED lights were used at night to apply photon fluxes of 150, 150, 150, and 20 μmol.m-2.s-1, respectively. The resulting effects of these different colored LEDs on the pigment concentration and growth response of the lettuce grown inside the roof polytunnel were then investigated. The experiment was then repeated several times with different environmental parameters in order to compare the effects of the different light wavelengths under higher temperatures and higher natural irradiation conditions.The results indicated that supplemental red or blue light at night could be strategically employed to maintain low nitrate levels and enhance the nutritional value and growth of lettuce grown in roof polytunnels.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2349  
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Author Wang, W., & Cao, C. url  doi
openurl 
  Title NOAA-20 VIIRS DNB Aggregation Mode Change: Prelaunch Efforts and On-Orbit Verification/Validation Results Type Journal Article
  Year 2019 Publication IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Abbreviated Journal  
  Volume 12 Issue 7 Pages  
  Keywords Remote Sensing; Radiometry; Earth; Satellite broadcasting; US Government agencies; Geology; Detectors; VIIRS-DNB  
  Abstract The Visible Infrared Imaging Radiometer Suite (VIIRS) on-board the National Oceanic and Atmospheric Administration-20 (NOAA-20, previously named Joint Polar Satellite System-1 or J1) satellite was successfully launched in late 2017, following six years of a successful operation by its predecessor on the Suomi National Polar-Orbiting Partnership (S-NPP) satellite. NOAA-20 VIIRS day/night band (DNB) adopts a new on-board aggregation option (Op21), which is different from S-NPP DNB (using Op32), to mitigate high non-linearity at high scan angles, observed in its radiometric response during prelaunch test. As a result, NOAA-20 VIIRS DNB has a larger scan angle at the end of scan (∼60.5°) and exhibits a unique feature, i.e., ∼600 km extended Earth view (EV) samples, compared to S-NPP DNB and other VIIRS bands. VIIRS geolocation (GEO) algorithm and geometric calibration parameters were analyzed in-depth and subsequently modified to accommodate the NOAA-20 VIIRS DNB aggregation mode change. The GEO code change was tested using S-NPP data; S-NPP DNB simulated J1 DNB radiance and limited J1 prelaunch test data. After the launch, it was further verified using NOAA-20 VIIRS on-orbit observations. Our results show that the prelaunch VIIRS GEO code change performs well. GEO validation results using nighttime point sources show that NOAA-20 DNB GEO errors are comparable to those for S-NPP DNB over the nominal EV range, with averaged nadir equivalent GEO errors less than 200 m after on-bit updates. Over the extended EV samples (scan angle > 56.06°), the averaged GEO errors are less than 500 m. Moreover, NOAA-20 VIIRS DNB radiometric calibration performance is comparable to S-NPP.  
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  Call Number IDA @ intern @ Serial 2350  
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Author Zielinska-Dabkowska, K.M.; Schieck, A.F. url  doi
openurl 
  Title Designing digital displays and interactive media in today’s cities by night. Do we know enough about attracting attention to do so? Type Journal Article
  Year 2018 Publication Conscious Cities Anthology Abbreviated Journal  
  Volume Issue Pages  
  Keywords Commentary; Lighting  
  Abstract With the huge transformation in the development of digital screen technology and its consistently decreasing cost, digital billboards are progressively replacing traditional static, two-dimensional poster advertisements in our cities1. Previously, due to the substantial expenditure involved, they were only available to major international brands with vast promotional resources to build their brand fame. Today, however, they are being used increasingly by advertisers to deliver all kinds of messages from simple ones to more sophisticated, interactive storytelling. Soon, however, even newer ways of purchasing advertisements using computers will be introduced by the outdoor media industry to address the public, so potentially everybody will be able to rent out available advertising space and communicate the message. But are we ready for this next step? As there are no proper guidelines or regulations in place for this new medium in the urban realm, today we are facing issues such as no integration of the display’s location into the built environment, no specifications based on knowledge of human perception and the human centric design approach, no control over its content quality, and so called ‘display blindness’2 seems to be a common collective urban experience at night. Taking London as one of the most cutting-edge outdoor digital advertising environments in the world3 (with the largest number of these screens traditionally located in or in close proximity to Piccadilly Circus) this paper discusses various aspects of this new medium. Besides the layout and geometry of the space, it also focuses on navigation and attracting the visual attention of passers-by at night in a practical human oriented context. Additionally, questions regarding complex sensory, social, special and interactional issues and the necessity for interdisciplinary collaboration have been addressed.  
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  Notes Approved no  
  Call Number IDA @ intern @ Serial 2351  
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