호우분리기법을 적용한 비정상성 빈도해석의 미래확률강우량 산정 및 평가

손찬영,이보람,최지혁,문영일,Son, Chan-Young,Lee, Bo-Ram,Choi, Ji-Hyeok,Moon, Young-Il 한국수자원학회 2015 한국수자원학회논문집 Vol.48 No.6

본 연구에서는 태풍의 경로 및 규모를 이용한 호우분리기법을 통해 한반도에 유발된 강우를 집중호우와 태풍강우로 분류하고, 지역별 강우특성 및 경향성 분석을 수행하였다. 또한 호우분리를 통한 비정상성 빈도해석을 수행하여 미래확률강우량을 산정하였으며, 이에 대한 정량적인 비교 및 평가를 수행하였다. 분석결과, 전기간 자료, 태풍강우 및 집중호우의 증가 및 감소율이 각각 상이하며, 증가 및 감소경향이 서로 상반되는 지점도 나타났다. 또한 호우분리를 통한 비정상성 빈도해석을 수행한 결과, 비교적 합리적인 미래확률강우량이 산정됨을 확인할 수 있었으며, 전기간 자료를 이용한 미래확률강우량과 비교한 결과 한반도 남부 및 동부지역에서 상대적으로 큰 차이가 나타났다. 호우분리기법을 적용한 비정상성 빈도해석 결과는 태풍 및 집중호우의 지역적인 변화특성을 잘 반영하는 것으로 나타나 수공구조물 설계 및 미래 기후변화와 관련된 치수대책 및 정책수립에 활용도가 높을 것으로 판단된다. This study aimed to estimate the future design rainfall through a non-stationary frequency analysis using the rainfall separation technique. First, we classified rainfall in the Korean Peninsula into local downpour and TC-induced rainfall through rainfall separation technique based on the path and size of a typhoon. Furthermore, we performed the analysis of regional rainfall characteristics and trends. In addition, we estimated the future design rainfall through a non-stationary frequency analysis using Gumbel distribution and carried out its quantitative comparison and evaluation. The results of the analysis suggest that the increase and decrease rate of rainfall in the Korean Peninsula were different and the increasing and decreasing tendencies were mutually contradictory at some points. In addition, a non-stationary frequency analysis was carried out by using the rainfall separation technique. The outcome of this analysis suggests that a relatively reasonable future design rainfall can be estimated. Comparing total rainfall with the future design rainfall, differences were found in the southern and eastern regions of the Korean peninsula. This means that climate change may have a different effect on the typhoon and local downpour. Thus, in the future, individual assessment of climate change impacts needs to be done through moisture separation. The results presented here are applicable in future hydraulic structures design, flood control measures related to climate change, and policy establishment.

뇌하수체 선종과 동반된 라스케열 낭 - 증례보고 -

손찬영,박상근,신형식,김태홍,황용순,김상진,Son, Chan Young,Park, Sang Keun,Shin, Hyung Shik,Kim, Tae Hong,Hwang, Yong Soon,Kim, Sang Jin 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.9

Athke's cleft cysts are believed to be derived from remnants of Rathke's pouch, a dorsal invagination of the stomodeum. Although these cysts are characteristically small, asymptomatic and intrasellar in location, they occasionally provoke symtoms with enlargement to compress surrounding structures. It is characteristically lined by stratified squamous epithelium with keratinization on a layer of connective tissue. The cells of the anterior pituitary lobe, from which pituitary adenomas develop, are also formed by the proliferation of the anterior wall of Rathke's pouch. Thus, Rathke's cleft cyst and pituitary adenomas are considered to have a common ancestry. We report a rare case in which the preoperative diagnosis was pituitary adenoma, but the pathologic diagnosis was a combination of a Rathke's cleft cyst and a coincidental pituitary adenoma.

한반도 태풍강우 추출기법 비교 평가

손찬영,권현한,김종석,문영일,Son, Chan-Young,Kwon, Hyun-Han,Kim, Jong-Suk,Moon, Young-Il 한국수자원학회 2014 한국수자원학회논문집 Vol.47 No.12

서북태평양에서 발생하는 태풍은 돌풍 및 강우를 동반하여 한반도뿐만 아니라 동아시아에 상당한 인적 및 물질피해를 야기함에 따라 이에 대한 수방대책 및 치수정책 수립이 시급한 실정이다. 따라서 본 연구에서는 태풍의 경로 및 규모를 고려한 태풍강우량 추출기법을 제안하고 과거 태풍 감시구역을 이용한 태풍강우 추출기법과 비교하여 적용성을 검토하였다. 태풍규모를 결정하기 위해 본 연구에서는 평균 태풍강우량을 산정하였으며, 산정결과 태풍 규모가 반경 700 km일때 평균 태풍강우량이 최대로 나타났다. 또한, 본 연구에서 제안하는 태풍의 경로 및 규모를 이용한 태풍강우량 추출기법은 과거 태풍 감시구역을 이용한 강우량 추출기법의 한계를 보완할 수 있을 것으로 판단되며, 유역별, 행정구역별로 태풍이 야기한 직접적인 강우를 추출할 수 있으며 주관적인 판단에 의해 발생할 수 있는 태풍강우의 과대 및 과소평가의 위험성을 최소화 할 수 있다. 본 연구의 결과는 향후 태풍과 집중호우의 특성분석과 기상인자를 활용한 강우예측, 수공구조물 설계, 산사태, 토석류에 대한 사전 대비책 등에 활용될 수 있을 것으로 기대된다. Strong winds and heavy rainfall from tropical cyclones (TCs) that occur in the Northwestern Pacific cause significant human and material damage to the Korean peninsula and East Asia. Hence, it is important to establish early warning systems and conduct preparedness activities in advance of a TC. This study suggests a technique to extract the value of uniform TC-induced rainfall considering the TC track and TC size. To validate our technique, we compare it to existing TC rainfall techniques using the spatial domain. To determine the TC size required for extracting TC-induced rainfall, this research analyzed the mean of TC-induced rainfall by TC size (1973-2012). As a result of this analysis, the maximum amount of mean of TC-induced rainfall was found for a TC with a radius of 700 km. Other techniques have limitations which this new technique addresses; it can extract TC-induced rainfall in each administrative area and minimize systematic biases of other extraction methods. The result of this study can be utilized in the preparation of rainfall forecasts, designing hydraulic structures, and predicting landslide and debris flows using TC-induced rainfall and downpours.

두개골을 침범한 Langerhans' Cell Histiocytosis - 증례보고 -

손찬영,박상근,김한성,신형식,황용순,김상진,Son, Chan Young,Park, Sang Keun,Kim, Han Sung,Shin, Hyung Shik,Hwang, Yong Soon,Kim, Sang Jin 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1

Langerhans' cell histiocytosis is a rare disease showing proliferation of histiocytes in multiple organ system. Bone lesions are the most common radiolologic manifestation of Langerhans' cell hysticytosis. Extraskeletal sites of Langerhans' cell hystiocytosis involvement include the skin, lymph nodes, thymus, lungs, central nervous system, liver, pancrease, spleen, and bowel. The authors have experienced a case of Langerhans' cell histiocytosis which involved the skull. A 3-year-old female presented with soft tissue mass on right periorbital area. Plain skull X-ray showed punched out bone lesion. Computed tomography showed non-enhancing osteolytic lesion on right frontal skull. Histologic findings of an excised mass revealed pathologic features of Langerhans' cell histiocytosis.

군용 도포직물의 내후성시험 대체에 대한 연구

손찬영 ( Chanyoung Son ) 한국품질경영학회 2016 품질경영학회지 Vol.44 No.3

Purpose: We would like to find the alternative method for the weathering test on rubber coated fabrics and adhesive-coated fabrics for the military products, KS M 0706 (Sunshine carbon arc) to KS M ISO 4892-2 (Xenon arc). Methods: We measured the tensile strength of adhesive-coated fabrics and adhesive products treated with sunshine carbon arc and xenon arc during 100, 150 and 200 hours, respectively. All of the results were treated with statistical test, ANOVA method. We also validate the surface modifications caused by treatment method and time by using FT-IR ATR and, SEM. Results: In case of the thick adhesive-coated fabrics (app. 1 mm), there was no distinctive difference on tensile strength by treatment method and time. In case of the thin mask hood (app. 0.22 mm) and TENT (app. 0.5 mm), there was distinctive difference on tensile strength. Especially, carbon arc showed a huge lowering properties. We could validate the curing from light and moisture, and the functional group change from cross-linking and oxidation using FT-IR ATR. In case of IBS, there was a surface cracks on SEM images. In case of mask hood, there was no distinctive differences, except for a particle falling from decreased affinity between rubber and particles caused by carbon arc. Conclusion: We concluded that there was no problems for changing xenon arc weathering test with same treatment time on IBS, KM7, K21 and adhesive products. In case of TENT and mask hood, there was a difference in tensile strength in accordance with the change of the treated time and method.

EMD기법을 활용한 강우빈도해석에 관한 연구

손찬영(Son, Chanyoung),이태삼(Lee, Taesam) 대한토목학회 2016 대한토목학회 학술대회 Vol.2016 No.10

Central-Pacific El Nino의 진화 패턴에 따른 한반도 영향 태풍의 특성 분석

손찬영(Son, Chan-Young),김종석(Kim, Jong-Suk),강원삼(Kang, Won-Sam),문영일(Moon, Young-Il) 대한토목학회 2012 대한토목학회 학술대회 Vol.2012 No.10

미래 극심한 물 부족 대응 효율적인 저수지 운영 방안 연구

손찬영(Son, Chanyoung),박진혁(Park, Jinhyeog),장수형(Jang, Suhyung),강현웅(Kang, Hyunwoong),김광천(Kim, Kwangcheon) 대한토목학회 2017 대한토목학회 학술대회 Vol.2017 No.10

중앙태평양 엘니뇨의 쇠퇴특성에 따른 낙동강 유역의 태풍영향 분석

김종석,손찬영,이주헌,문영일,Kim, Jong-Suk,Son, Chan-Young,Lee, Joo-Heon,Moon, Young-Il 대한토목학회 2014 대한토목학회논문집 Vol.34 No.1

본 연구에서는 중앙태평양 지역의 비정상적인 해수면 온도변화를 3가지 진화패턴(Prolonged-decaying, Abrupt-decaying, Symmetric-decaying)에 따라 분류하였으며, 이에 따른 한반도 영향 태풍을 중심으로 태풍의 발생지점 및 경로, 중심기압의 특성변화와 낙동강유역의 태풍 강우량 및 중호우사상의 발생빈도에 대한 특성변화를 분석하였다. 분석결과, Prolonged-decaying 해와 Symmetric-decaying 해의 경우, 낙동강 유역의 태풍에 의한 여름철 강우량 및 중호우사상의 발생빈도가 평년보다 크게 나타났다. 그러나, Abrupt-decaying 해의 경우, 태풍강우는 대체로 감소하는 패턴을 보이는 것으로 분석되었으며, 이는 태풍의 발생지점이 비교적 한반도에 근접하게 위치하며 태풍의 중심기압이 높고 태풍의 경로가 대체로 일본으로 이동하기 때문인 것으로 나타났다. 본 연구의 성과는 중앙태평양 엘니뇨의 진화패턴별 태풍활동특성 및 지역적 태풍강우 특성 분석을 통하여 침수피해를 저감하고 기후변화에 대비한 적응방안 수립에 유용한 기초자료로 활용될 수 있을 것으로 기대된다. This study classified abnormal sea surface temperature changes of the central pacific region according to three evolution patterns. Focusing on typhoons that affect the Korean Peninsula, the research analyzed typhoon's occurrence spot and track, change in the central pressure characteristics, and the characteristics of change in typhoon precipitation and the number of occurrences of heavy rainfall in the Nakdong River Basin. As a result of analysis, in case of prolonged-decaying years and symmetric-decaying years, typhoon-related summer rainfall and heavy rainy days appeared to be higher than long-term average. But in case of abrupt-decaying years, the pattern of general decrease appeared. This is because typhoon's occurrence spot is located comparatively near the Korean peninsula, typhoon's central pressure is high, and typhoon's route generally moves to Japan. As the outcome, this study is expected to reduce flood damage through analyzing the characteristics of typhoon's activity according to CP El Ni$\tilde{n}$o evolution patterns and the characteristics of local typhoon rainfall. In addition, it is expected to provide useful information for establishing adaptation and mitigation to climate change.

Unusual Anterior Arch Fracture of C1 - 증 례 보 고 -

김상진,손찬영,김태홍,신형식,황용순,박상근,Kim, Sang Jin,Son, Chan Young,Kim, Tae Hong,Shin, Hyung Sik,Hwang, Young Soon,Park, Sang Keun 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.4

Fractures of C1 are not uncommon, constituting only 10% of all cervical spine injuries. There is a high prevalence of concomitant fractures of the second and first cervical vertebral complex. Surgical treatment is controversal. Mainstay of treatment is various combination of traction and cervical orthosis according to degree of displacement and location of fracture. We experienced unusual type of fracture, anterior arch fracture of C1 who had a history of total laminectomy of C1,2 due to cervical cord tumor(neurilemmoma arising from C2 root). We performed C1,2 lateral mass screw fixation with posterior fusion with good postoperative outcome.