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배재석,최준우,윤성범,Bae. Jae-Seok,Choi. Jun-Woo,Yoon. Sung-Bum 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
Potential tsunamis which may occur near Ryukyu Islands were simulated. Propagation characteristics of the potential tsunamis over the southwestern sea and the influence of tsunamis on the southwestern coast of Korean Peninsula were analyzed. The shallow water area in the east sea of China and the deep water Okinawa Trough play an important role in wave transformation and propagation of the potential tsunamis. The propagation characteristics of the potential tsunamis generated near Ryukyu Islands can be described as in followings : In the first stage after generation, the tsunamis propagate with high speed both northeastward and southwestward along the Okinawa Trough. As a result the waves are elongated and the tsunami height is significantly reduced. The elongated crest of tsunamis spans the whole distance of the Okinawa Trough and lines up toward the edge of the continental shelf of East China Sea. Then, the tsunamis are propagating towards the southeast coast of China. Thus, the influence of tsunamis on the Korean coasts becomes weak.
배재석(Bae, Jae-Seok),윤성범(Yoon, Sung-Bum) 한국해안해양공학회 2010 한국해안해양공학회 논문집 Vol.22 No.5
본 연구에서는 지진해일 실시간 정량 대응을 위해 발생원 위치 및 지진규모에 따른 해안침수예상도 작성 방법을 제안하였으며 그 방법은 다음과 같다. 관심지역에 지진해일 피해를 발생시킬 것으로 예상되는 발생원을 선정하고 지진규모에 따른 수치모의를 수행하여 각 발생원별 지진규모별 침수예상도를 작성하는 것이다. 본 연구에서는 시범적으로 동해안 임원항을 대상으로 일본 서안에 위치한 11개의 잠재 지진해일 발생원과 7개의 지진규모에 대하여 침수예상도를 작성하였다. In this study, a method to construct tsunami inundation map corresponding to the earthquake location and magnitude was proposed for tsunami real-time quantitative response. This proposed procedure can be introduced as in the followings: Potential tsunami source locations expected to cause damage in an interested area was identified. And numerical simulations were performed for various earthquake magnitudes. Based on numerical simulation results, inundation maps were constructed according to each source location and magnitude of tsunami generating earthquake. In this study, inundation maps for Imwon harbor were constructed for the 11 source locations and 7 earthquake magnitudes on a trial basis.
배재석(Jae-Seok Bae),이의석(Eui-Suk Lee),홍순택(Soon-Taek Hong) 충남대학교 농업과학연구소 2010 농업과학연구 Vol.37 No.2
This study was carried out to investigate the quality characteristics of bread containing mulberry fruit powder(0, 3, 6 and 9%, w/w). For color values, L, a and b values decreased with increasing the amount of mulberry fruit powder. In texture, increasing the amount of mulberry fruit powder resulted in hardness and chewiness to increase, while springiness and cohesiveness was decreased. Dough volume of bread containing mulberry fruit powder was reduced and specific loaf volume was also decreased with increasing the amount of mulberry powder. With addition of 6% mulberry powder to the bread, overall sensory score showed the highest rating, while it was minimum with 9% addition. In conclusion, it could be expected that a range of mulberry fruit breads can be developed, with good sensory properties.
배재석(Bae, Jae-Seok),조영준(Cho, Young-Joon),권석재(Kwon, Seok-Jae),윤성범(Yoon, Sung-Bum) 한국해안해양공학회 2012 한국해안해양공학회 논문집 Vol.24 No.1
본 연구에서는 한국 남쪽 해역의 해저지형이 2011년 동일본 지진해일의 우리나라 남해안으로의 전파에 미치는 영향을 분산보정 유한차분 모형을 이용한 수치해석을 통해 분석하였다. 본 연구를 통해 일본 남해 해구, 유구 열도 및 동중국해의 볼록지형 등 파원역으로부터 한반도에 이르는 해저지형이 한반도 남해안을 따른 지진 해일고저감에 중요한 역할을 하고 있음을 알 수 있었다. 그러한 해저지형에서 지진해일의 변형에 관련된 메카니즘에 대해 자세히 기술하였다. The effect of bathymetry near the south sea area of Korea on the propagation of 2011 East Japan Tsunami is analyzed based on the numerical simulation using the finite difference dispersion-correction model. It is found that the bathymetry from the source to Korean Peninsula, such as Nankai Trough, Ryukyu Islands and the topographical lens in the East China Sea, plays an important role to reduce the tsunami height along the south coast of Korea. The mechanism involved in the transformation of tsunamis over those topographies is discussed.
찰보리 전분 추출에 있어서 β -Glucanase 처리 효과
배재석(Jae-Seok Bae),이의석(Eui-Suk Lee),정용선(Yong-Sun Jeong),김정원(Jeong-Won Kim),이미자(Mi-Ja Lee),홍순택(Soon-Taek Hong) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.3
In the present study, β-glucanase-assisted extraction of starch from glutinous barley(Hinchal ssalbory) was investigated. β-glucanase was added to a coarse starch suspension obtained after wet milling in the starch extraction process. It was found that in the isolated starch with enzyme treatment, protein content was lower by 0.03%, compared to that with non-enzyme treatment. More importantly it was observed that the extraction yield of starch from enzyme treatment was found to be about 12% higher than the one from non-enzyme treatment (enzyme treated: 90.56%, non-enzyme treated: 78.46%). In order to elucidate this finding, the mass-balance determination of starch in each extraction step was carried out and found that the enzyme treatment might influence on the insoluble residues(R3 and R4 fractions) to hydrolyze β-glucan and other materials (e.g., mucilages etc.), thereby facilitated the separation of starch from it and a next filtration process. With a phase-contrast microscope it was observed that the isolated starch with enzyme treatment contained small starch granules more than the one with non-enzyme treatment and this might result in higher extraction yield observed with the former. In order to confirm this hypothesis, further experiments would be necessary.