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정종환(Jong-Hwan Jung),이규목(Kyumok Lee),구진회(Jinhoi Gu) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.11
The outdoor lighting is provided for a variety of purposes, for work or recreation, for safety or security, for amenity and for advertising or display. But the effects of lighting on the natural environment can be difficult to quantify. At present, in many countries, various policies to manage the light trespass from outdoor light have been planned. For example, Model Lighting Ordinance(MLO) will allow communities to drastically reduce light pollution and glare and lower excessive light levels. The recommended practices of the IES can be met using readily available, reasonably priced lighting equipment. So, it this paper, we analyze the effect of road lighting on light trespass using by RELUX program. And then we consider the possibility of practical application of BUG rating in Korea.
조명시뮬레이션 프로그램(RELUX)을 이용한 도로조명의 공간적 배치에 따른 침입광 영향 특성 연구
구진회(Jinhoi Gu),정종환(Jong-Hwan Jung),이규목(Kyumok Lee) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.11
The road lightings have made our living environment safe and active, since it was first installed in 1900 in Korea. As the industry developed, various kind of road lightings have been installed in an outdoor area. But the spilt light from the road lightings have caused health problem like the sleeplessness, the depression, the failure to thrive and the nearsightedness to children. The light trespass caused by road lightings vary with the height of road lightings, the distance from road lightings to the window and the BUG rating of road lightings. In this paper, we analyze the effect on the light trespass by the spatial installation position of road lightings using by RELUX program. And we derive the characteristics of the light trespass according to the spatial installation position of the road lightings in residential area near road.
구진회(Jinhoi Gu),권명희(Myunghee Kwon),이우석(Wooseok Lee),이재원(Jaewon Lee),박형규(Hyungkyu Park),김삼수(Samsu Kim),윤희경(Heekyung Yun),이규목(Kyumok Lee),정대관(Daekwan Jung),서충열(Chungyoul Seo) 한국소음진동공학회 2014 한국소음진동공학회 논문집 Vol.24 No.9
Nowadays, the needs to revise the classification criteria for noise emission facilities have been suggested by the related industries. Because there existed many reasonable factors in the criteria regarding the noise emission facilities. And the noise emission facility classification criterion of the print machine changed from 50 HP to 100 HP in 2013. But the increasement of the noise emission facility classification criterion of the print machine can cause adverse effects like the bigger noise. So, in this paper, we measured the print machines sound power level according to the changes of the print machines power to assess the adverse effects. The measurement method applied with KS I ISO 9614-2(1996). The corelation between the sound power level and the power of print machines was analyzed by regression analysis. In this paper, we found that the sound power level of the print machines can increase about 1.3 dB in the condition of that the power of print machine increases from 50 HP to 100 HP. And we found that the sound power level of the print machines can increase about 1.0 dB for a increasement of 1,000 SPH(sheet per hour) of printing speed. The noise emission characteristics of print machine stuied in this paper will be useful to design the noise reduction plan in the future.