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Peter Jarvis, Olivier Autin, Emma H. Goslan and Francis Hassard
Ultraviolet light-emitting diodes (UV-LEDs) have recently emerged as a viable technology for water disinfection. However, the performance of the technology in full-scale drinking-water treatment systems remains poorly characterised. Furthermore, current ...
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Ahmed Kamel, Ana Palacios, Manuel Fuentes and Marta Vivar
The aim of this study is to verify the reciprocity law in the wastewater disinfection process using UV light. The optical power UV-LEDs used were 1.6 mW and 50 mW, and the wavelengths were 265 nm and 275 nm. E. coli, Enterococcus faecalis, and Clostridiu...
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Yong-Sin Syu and Yung-Chun Lee
This paper proposes a lens design method for effectively collimating the light emitting from a light-emitting diode (LED). This collimating lens contains two aspherical lens surfaces which can be mathematically characterized using a few designing paramet...
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Seho Kim, Taehyung Nam and Dongwon Jung
The VisionCube is a 2-unit CubeSat developed in house, of which the primary mission is detecting the occurrence of transient luminous events (TLEs) in the upper atmosphere and obtaining corresponding images from a low Earth orbit. An onboard TLE observat...
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Alyaa M. Zyara, Helvi Heinonen-Tanski, Anna-Maria Veijalainen and Eila Torvinen
UV-LEDs are a new method of disinfecting drinking water. Some viruses are very resistant to UV and the efficiency of UV-LEDs to disinfect them needs to be studied. Drinking water was disinfected with UV-LEDs after spiking the water with MS2 and four UV- ...
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Véronic Landry, Pierre Blanchet, Gabrielle Boivin, Jean-François Bouffard and Mirela Vlad
Ultraviolet light emitting diodes (UV-LEDs) have attracted great interest in recent years. They can be used to polymerize coatings, such as those used for prefinished wood flooring. In this project, two lamps were compared for their suitability to be use...
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