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공사장에서의 건설장비의 음향파워 및 지향지수 특성 분석
조연(Yeon Cho),송치문(Chi-Mun Song),황대선(Dae-Sun Hwang),임정빈(Jung-Bin Lim) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.1
The construction noise has been one of the main issues in environment pollution area. It causes most complaints from the people around construction sites and leads to ever strict regulations to reduce. Main source is the noise from various machines in operation under many different conditions. To build proper measure to reduce construction noises, acoustic data such as sound powers and direction indices are required for each machines. Since sound power data for construction machineries were not available, a rough estimation from sound pressure level at certain distance from a machine has been used until recently. In this study, sound power and direction indices are evaluated and analyzed for eight kinds of construction machineries under various working conditions by measuring equivalent sound pressure levels at the construction site according to ISO 6395. This results will be used for noise prediction for a residential area nearby construction site.
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이선영(Sun-Yung Lee),윤나리(Na-Ri Yoon),황정빈(Jung-Bin Hwang),이향정(Hyang-Jung Lee),이준희(Joonhee Lee),고경희(Kyung-Hee Koh) 가톨릭대학교 생활과학연구소 2008 생활과학연구논집 Vol.28 No.1
In this study, the total phenolic, flavonoid, sugar, β-carotene, organic acid and mineral contents of chajogi(perilla frutescens), gomchwi(coriandeum sativum), meowi(Petasites japonicus) and sseumbagwi (Ixeris dentata) were evaluated. The total phenolic content of chajogi, gomchwi, meowi and sseumbagwi was 115.4 mg%, 291.6 mg%, 51.8 mg%, and 313.9 mg%, respectively, with the content of sseumbagwi being significantly higher than the content of the other plants(p<0.05). The total flavonoid content of cajogi, gomchwi, meowi and sseumbagwiwas 57.3 mg%, 193.1 mg%, 10.6 mg%, and 183.0 mg%, respectively. Although these values were significantly different but gomchwi and sseumbagwi were no significant difference observed(p<0.05). The sugar content was 8.4 g% in chajogi, 10.9 g% in gomchwi, 17.0 g% in meowi, and 8.4 g% in sseumbagwi. The β-carotene content of chajogi, gomchwi, meowi and sseumbagwi was 47.6 mg%, 194.8 mg%, 20.7 mg%, and 185.4 mg% respectively. The total organic acid content was 3947.5 mg% in chajogi, 3265.4 mg% in gomchwi, 2473.5 mg% in meowi, and 6241.0 mg% in sseumbagwi. Finally, the total mineral content was 3808.0 mg% in chajogi, 5860.2 mg% in gomchwi, 9522.2 mg% in meowi, and 5530.5 mg% in sseumbagwi.
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황정빈,윤나리,이선영,이향정,고경희 가톨릭대학교 생활과학연구소 2009 생활과학연구논집 Vol.29 No.1
The objective of this research was to evaluate the components of pear cactus(BNC), mulberry(OD) and black raspberry(BBJ) fruits for prevention women’s climacteric symptoms. In the present study, the sugar content was 43513.7 ± 481.21㎎% in mulberry, 12542.3 ± 174.34㎎% in pear cactus, and 11933.6 ± 132.10㎎% in black raspberry, so it was highest in mulberry. The β-carotene content was 44.4 ± 7.81㎎% in pear cactus, 41.9 ± 6.96㎎% in mulberry, and 1.4 ± 0.25㎎% in black raspberry, so it was high in pear cactus and mulberry. The major organic acid was malate and citrate. Those total contents were 9652.7 ± 120.44㎎% in pear cactus, 4312.1 ± 252.71㎎% in mulberry, and 5809.9 ± 65.51㎎% in black raspberry, so it was highest in pear cactus. The total mineral content was 3258.4 ± 65.61㎎% in pear cactus, 1872.4 ± 39.06㎎% in mulberry, and 1398.0 ± 31.27㎎% in black raspberry, so it was highest in pear cactus. 노화는 누구에게나 공통적으로 일어나는 현상이지만 노년기의 건강은 생활환경에 따라 개인 간에 많은 차이가 있다. 또한 의학의 발달과 경제 발전에도 불구하고 식생활의 서구화로 채식보다 육식위주의 식사를 선호하면서 비만,당뇨,심혈관 질병,뇌혈관질환 동의 퇴행성 만성질환이 증가하고 특히 30 대 이후 암으로 인한 사망률이 가장 높은 것으로 나타났다. 노화의 원인인 산소는 인간의 생존에 중요하며 공기 중 에 존재하는 삼중항 산소(^(3)O_(2) 는 호흡을 통해 체내로 들어와 일중항 산소^(1)O_(2)로 변하여 과산화음이용라디칼 °O_(2),수산라디칼(°OH), 과산화 수소(H_(2)0_(2))와 같은 활성산소 종 라디칼을 형성 한다(Sies,1993). 이들 라디칼은 DNA 손상, 혈관지질 산화, 단백질 산화를 일으켜 각종 질병, 노화와 암을 발생시키는 것으로 해석 되고 있다.
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