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Ardavani O. |
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Title  |
Alternatives to artificial lighting: Varying patterns of bio-light in architecture |
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Journal Article |
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2020 |
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Archidoct |
Abbreviated Journal |
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8 |
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1 |
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80-91 |
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Lighting |
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The notion of variability is identical to the phenomenon of light.The present paper examines characteristics that shape this variability, in all forms of light, both natural and artificial, as well as light that is experimentally produced in a laboratory environment, through genetic modification of plants, in line with current trend of architectural fluidity. At a time when architecture is interacting with emerging technologies by creating parametrically changing shells and environments, that are evolving as biological models and organisms, lighting is becoming a tool for highlighting forms while ensuring the functionality of spaces. It is up to the designer to manage these variables of light in an inspired way, in order to create an elegant, sustainable and environmentally friendly environment for all beings. |
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2309-0103 |
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UP @ altintas1 @ |
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3223 |
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Author |
Mazharul Hoque, M. |
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Title |
An analysis of fatal bicycle accidents in victoria (Australia) with a special reference to nighttime accidents |
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Journal Article |
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Year |
1990 |
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Accident Analysis & Prevention |
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Accident Analysis & Prevention |
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22 |
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1 |
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1-11 |
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Lighting |
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0001-4575 |
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LoNNe @ kagoburian @ |
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635 |
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Elejoste, P.; Angulo, I.; Perallos, A.; Chertudi, A.; Zuazola, I.J.G.; Moreno, A.; Azpilicueta, L.; Astrain, J.J.; Falcone, F.; Villadangos, J. |
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Title |
An easy to deploy street light control system based on wireless communication and LED technology |
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Journal Article |
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2013 |
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Sensors (Basel, Switzerland) |
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Sensors (Basel) |
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13 |
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5 |
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6492-6523 |
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Lighting |
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This paper presents an intelligent streetlight management system based on LED lamps, designed to facilitate its deployment in existing facilities. The proposed approach, which is based on wireless communication technologies, will minimize the cost of investment of traditional wired systems, which always need civil engineering for burying of cable underground and consequently are more expensive than if the connection of the different nodes is made over the air. The deployed solution will be aware of their surrounding's environmental conditions, a fact that will be approached for the system intelligence in order to learn, and later, apply dynamic rules. The knowledge of real time illumination needs, in terms of instant use of the street in which it is installed, will also feed our system, with the objective of providing tangible solutions to reduce energy consumption according to the contextual needs, an exact calculation of energy consumption and reliable mechanisms for preventive maintenance of facilities. |
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Deusto Institute of Technology (DeustoTech), University of Deusto, Bilbao 48007, Spain. perallos@deusto.es |
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1424-8220 |
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PMID:23681092; PMCID:PMC3690067 |
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LoNNe @ kagoburian @ |
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631 |
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Jørgensen, L. D., Tambo, T., & Xydis, G. |
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An efficiency evaluation of radar‐based obstruction lights controlling at a wind turbine test site |
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Journal Article |
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2019 |
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Wind Energy |
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22 |
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4 |
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Lighting; Public Safety; Planning |
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In this study, an obstruction lights controlling (OLC) system based on a Terma SCANTER 5000 radar has been installed at a test centre for large wind turbines. The objective of this study was to evaluate the efficiency of the OLC system and to improve this efficiency by introducing new technological features. Once the first assessment had been carried out, new software with improved tracking functionalities was installed to the radar. With the new software, a second assessment was made to compare the new performance to the old one. To analyse the tracks, geographic information system (GIS) tools have been used. A new MATLAB script was developed to automate the assessment as well as to gather data on the tracks. These data sets were used to improve the system performance by introducing a radar cross section (RCS)/speed filter. The outcome of the study is a filter that can be implemented on the radar system to improve the efficiency of the system and reduce the time that obstruction lights need to be on for by 62.59%, without compromising the integrity of the system. |
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IDA @ intern @ |
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2298 |
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Author |
Du, J.; Zhang, X.; King, D. |
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An investigation into the risk of night light pollution in a glazed office building: The effect of shading solutions |
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Journal Article |
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2018 |
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Building and Environment |
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Building and Environment |
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145 |
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243-259 |
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Lighting; Planning |
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Light pollution has been recognised as a major environmental problem in urban areas at night. This study presents an investigation into the impact of seven various shading solutions on the risk of light pollution caused by indoor artificial lighting in a fully glazed office building. Radiance, a ray-tracing package, was adopted to calculate external illuminances produced by indoor lighting applications at various positions. It has been determined that: 1) A glazed façade could become a critical source of light pollution or obtrusive light (sky glow and light trespass) due to applications of indoor lighting at night; 2) A light shelf could perform well on the protection of both light trespass and sky glow; 3) A large overhang and horizontal louvre could effectively lower the risk of light trespass, but would possibly cause the deterioration of sky glow; and 4) No significant impact of short overhang and vertical louvre can be found on the two aspects of light pollution. This study exposes a significant implication; apart from their principal functions, the shading devices applied in a largely glazed building may require a new role in controlling obtrusive light in cities at night. |
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0360-1323 |
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GFZ @ kyba @ |
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2015 |
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