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우리나라의 지진해일 연구: Part 2. 현장조사와 방재대책
조용식,이광준,강철,Cho, Yong-Sik,Lee, Kwang Jun,Kang, Cheol 한국수자원학회 2018 한국수자원학회논문집 Vol.51 No.11
Catastrophic tsunamis triggered by undersea earthquakes may invade not only neighboring but also distant coastal communities. Many coastal communities and nuclear power plants are located along the Eastern Coast of the Korean Peninsula and they may be very vulnerable to unexpected tsunami attacks. In this companion review, field survey of tsunamis, prevention against tsunamis, furture research topics will be described. 해저지진에 의해 촉발되는 파괴적인 지진해일은 지진의 진원지 부근은 물론 멀리 떨어진 해안지역에도 피해를 입힐 수 있다. 우리나라의 동해안은 많은 인구밀집지역과 원자력발전소가 위치하고 있어 예상하지 못한 지진해일의 내습으로부터 위험에 노출되어 있다. 본 논문에서는 지진해일 현장조사, 방재대책 및 추가적으로 연구해야 할 주제 등에 대하여 기술한다.
김대현 ( Dai Hyun Kim ),이광준 ( Kwang Jun Lee ),고주연 ( Joo Yeon Ko ),안효현 ( Hyo Hyun Ahn ),계영철 ( Young Chul Kye ),유화정 ( Hwa Jung Ryu ) 대한피부과학회 2013 대한피부과학회지 Vol.51 No.5
Ultrasound is over 20 khz, which represents the upper frequency limit of human hearing. Acoustic vibrations are generated when piezoelectric materials on the thin disc-shaped transducers expand and contract. Although low frequency ultrasound devices have been used widely in the dermatologic area for a long time, the mechanism and side effects have been overlooked. A low-frequency ultrasound device has many benefits on the cosmetic dermatology area by thermal effect, vibration effect, and increase of transdermal delivery of lipophilic drugs or cosmetics. However, there have been reports of dermatitis, dyspnea, dizziness, and burns after treatment with ultrasound. Therefore, the use of this device should be under a doctor`s supervision.