Effect of tunnel lighting replacement on power usage and illumination improvement: replacing low pressure sodium lamp with LED (터널 조명등 교체에 따른 전력사용량 및 조도 개선 효과: 저압나트륨램프 LED로 교체)
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- Journal of Korean Tunnelling and Underground Space Association
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- v.22 no.2
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- pp.185-196
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- 2020