Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of high output fluorescent lamps, with cycling controlled by photocells and astronomic clock auxiliaries, in Mule Pass, Ariz highway tunnel to produce 50 ft-c of portal intensity.
Tunnel lighting with H.O. Lamps
Elec Construction Maintenance
Stead, H. (Autor:in)
1961
3 pages
Aufsatz (Zeitschrift)
Englisch
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Performance of induction lamps and HPS lamps in road tunnel lighting
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Performance of induction lamps and HPS lamps in road tunnel lighting
| British Library Online Contents | 2008
Performance of induction lamps and HPS lamps in road tunnel lighting
| Online Contents | 2008
Performance of induction lamps and HPS lamps in road tunnel lighting
| Online Contents | 2008