Exploració per autor "Bará Viñas, Salvador"

Ara es mostren els items 1-6 de 6

    • Calculating spectral irradiance indoors 

      Bará Viñas, Salvador; Escofet Soteras, Jaume (2016-09-01)
      Article
      Accés obert
      The spectral composition of the light that reaches any indoor work plane depends on the characteristics of the light sources and the spectral reflectances of the surrounding surfaces due to the multiple reflections ...

    • Direct assessment of the sensitivity drift of SQM sensors installed outdoors 

      Bará Viñas, Salvador; Marco, Enric; Ribas, Salvador; García Gil, Manuel; Sanchez De Miguel, Alejandro; Zamorano Saavedra, Juan Carlos (2021-04-16)
      Article
      Accés obert
      Long-term monitoring of the evolution of the artificial night sky brightness is a key tool for developing science-informed public policies and assessing the efficacy of light pollution mitigation measures. Detecting the ...

    • Ground-based hyperspectral analysis of the urban nightscape 

      Alamús, Ramón; Bará Viñas, Salvador; Corbera, Jordi; Escofet Soteras, Jaume; Palà, Vicenç; Pipia, Luca; Tardà, Anna (2017-02-28)
      Article
      Accés obert
      Airborne hyperspectral cameras provide the basic information to estimate the energy wasted skywards by outdoor lighting systems, as well as to locate and identify their sources. However, a complete characterization of the ...

    • Light pollution offshore: Zenithal sky glow measurements in the mediterranean coastal waters 

      Ges Cros, Xavier; Bará Viñas, Salvador; García Gil, Manuel; Zamorano, J; Ribas, Salvador; Masana, Eduard (2018-05)
      Article
      Accés obert
      Light pollution is a worldwide phenomenon whose consequences for the natural environment and the human health are being intensively studied nowadays. Most published studies address issues related to light pollution inland. ...

    • On lamps, walls, and eyes: the spectral radiance field and the evaluation of light pollution indoors 

      Bará Viñas, Salvador; Escofet Soteras, Jaume (2018-01-01)
      Article
      Accés obert
      Light plays a key role in the regulation of different physiological processes, through several visual and non-visual retinal phototransduction channels whose basic features are being unveiled by recent research. The growing ...

    • Reducing the circadian input from self-luminous devices using hardware filters and software applications 

      Escofet Soteras, Jaume; Bará Viñas, Salvador (2015-12)
      Article
      Accés obert
      The widespread use of self-luminous devices at nighttime (cell-phones, computers, and tablets) raises some reasonable concerns regarding their effects on human physiology. Light at night is a known circadian disruptor, ...