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`07. 12. 29<TEX>$\sim$</TEX>`08. 1. 1 대설 피해 특성과 시설물 안전관리방안
박병철,이정한,박민규,Park. Byung-Cheol,Lee. Jung-Han,Park. Min-Kyu 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
The objectives of the on-the-spot inspection in Honam district are to find out the situation of the damages on facilities and the reason of the damages caused by heavy snow, and to suggest the preventive plan for reducing the damages from the future heavy snow. From the results of the on-the-spot inspection, plastic houses, barns and ginseng cultivation facilities are mainly damaged by heavy snow in the Honam district, and the importance of the future heavy snow preparedness measures is highly recognized in an agricultural district. In this research, 4 kinds of alternative proposals for the heavy snow are suggested.
박병철,오금호,박승범,Park. Byung-Cheol,Oh. Keum-Ho,Park. Seung-Bum 한국방재학회 2005 한국방재학회논문집 Vol.5 No.2
우리나라에서는 홍수로 매년 90여개 이상의 교량이 붕괴되고 있으며, 이러한 교량의 붕괴는 대부분 기초의 세굴에 기인하고 있다. 그동안 교량의 설계 및 유지관리 분야에서 세굴에 대한 교량의 건전성을 정량적으로 평가하기 위한 평가기법 개발에 관한 연구는 체계적으로 수행되지 못한 실정이다. 본 연구에서는 홍수 발생 후 교각의 세굴 건전성을 평가하기 위한 긴급점검기법으로써 세굴로 인한 교각의 고유진동수 변화를 이용하기 위한 동적특성 평가실험을 수행하였다. 세굴을 모의한 확대기초 교각 모형의 동적특성 평가 실험결과 교각의 1차 모드 고유진동수를 이용하여 기초의 세굴을 평가할 수 있을 것으로 분석되었다. In Korea more than ninety bridges are collapsed every year by flood, which causes the scour of pier foundation. Researches on the quantitative assessment method to assess the integrity of bridge against scour have not been organized systematically in the bridge design practice and maintenance area. In this study, dynamic characteristics assessment experiments are carried out as an emergency inspection method to assess the integrity of the pier foundation for scour after a flood. According to the dynamic characteristics assessment experiment, which simulates foundation scour of the spread footing pier, foundation scour can be evaluated by the first mode natural frequency of the pier.
상침자(桑침子)가 3T3-L1 전지방세포 분화시 cytokine에 미치는 영향
박병철 ( Byung Cheol Park ),차윤엽 ( Yun Yeop Cha ) 한방비만학회 2007 한방비만학회지 Vol.7 No.2
In recent years, we are concerned about anti-aging and longevity. And I heard that Mori Fructus has been used for promotion of health in local clinics. So I wanted to know immuno-ability of Mori Fructus and carried out this experiment. Methods We cultivated 3T3-L1 Preadipocytes and Protein chip used for ProteoPlexTM 16-Well Murine Cytokine Array Kit. Results We known the immunity of Mori Fructus about 3T3-L1 Preadipocytes and gained the increase of Cytokines(IL-2, IL-4, IL-12p70, GM-CSF, INF-γ, TNF-α). Conclusions So I guess that Mori Fructus has effect of immuno-ability, etc.
Educational Lecture 2-4 (EL 2-4) : Various biopsy methods and suturing technique
박병철 ( Byung Cheol Park ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Skin biopsy is essential to establish a diagnosis of skin disorders and in planning of therapy. The type of skin biopsy depends on the kind of lesion to investigate. First, punch biopsy is performed with a pre-made circular cutting punch and range in size from 2mm to 6mm. This may be the most commonly used technique. The technique is as follows: After anesthesia, the skin is drawn taut with the non-dominant hand and the punch is applied gently and firmly against the skin surface perpendicularly. Next, a downward pressure using a twirling motion is applied, The cylindrical specimen should be lifted smoothly with the tip of the needle or by gentle handling with the forceps. Then the base of specimen can be cut and ensuring a good amount of fatis very important. Second, save biopsy can remove the elevated portion of surrounding skin which is caused by the protruding lesion itself or the manner of injection of local anesthetic. The depth of shave biopsy is limited to the epidermis and the deep papillary dermis. It is useful tool to remove seborrheic keratoses, warts, pyogenic granuloma and so on. The technique is as follows : The lesion is elevated from the surrounding skin by injecting local anesthesia to facilitate the procedure. With pinching the skin between the thumb and index finger, a razor blade or surgical blade should be moved under the lesion horizontally to the skin surface. The operator can control the depth of the biopsy by the angle of the blade. Third, the excisional and incisional biopsy could be needed to remove larger lesion or when deep specimen including subcutis must be taken. Above biopsy requires much time, more skill and advance preparation of instruments. The elliptical biopsy in which the length is three or four times larger than width making 30 angle at the poles is widely used. It is necessary when the specimen for microscopic examination must include either a continuum from uninvolved normal skin through the edge of a lesion into the thickest or most representative area of the lesion. The defect after skin biopsy usually closed by suturing. The simple interrupted suture is the most and widely used. It is important that the path of a simple interrupted stitches enters the skin at an angle 90, and the suture loop at the base is broader than the skin surface. In a simple running stitch, the individual stitches need not knot except the first and the last suture and the time is much shorter comparing with interrupted stitches. Buried subcutaneous sutures is helpful in spreading wound closure tension, closing dead space and apposing wound edges. Proper placement is critical for good result. So the entering point and the exit point in the dermis should be same level to prevent a step-off deformity.
박병철 ( Park Byung-cheol ),장성희 ( Chang Sung-hee ),임종혁 ( Lim Jong-hyuk ),김영훈 ( Kim Young-hun ) 한국구조물진단유지관리공학회 2010 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.14 No.1
The object of this study is to develop the bridge scour integrity assessment method using dynamic characteristics. We implement experimental mode analysis with excavation steps imitating scour using a pier specimen. In this study, therefore, 1st mode natural frequency of pier specimen with embedded depth is compared.