흐름 전위 특성을 고려한 수리시설물에서의 자연 전위 탐사 사례 고찰

송서영,조아현,강경철,남명진,Song, Seo Young,Cho, AHyun,Kang, Peter K.,Nam, Myung Jin 한국지하수토양환경학회 2021 지하수토양환경 Vol.26 No.6

Self-potential (SP) surveys measure naturally occurring differences in electrical potential in the absence of artificial sources and have been applied to various fields since the first application in mineral explorations. Among various causes of SP occurrences, streaming potential is generated by the flow of groundwater, and makes SP surveys suitable for the exploration of groundwater table fluctuation, fractures, sinkholes and landslide occurrences. Recently, there has been many studies that applied SP surveys to monitor water leakage through dikes and embankments. In this review paper, we first review the characteristics and theoretical backgrounds of streaming potential in saturated or unsaturated porous media to introduce it in the embankment among various application field. After the review of the background theory, we review the past cases of field SP surveys on dikes and embankments and also the characteristics of field streaming potential data in the surveys. Further, by analyzing past studies of qualitative as well as quantitative interpretation of SP survey data, we show the possibility of quantitative interpretation of streaming potential data obtained on dikes and embankments. Consequently, it is hope that this review paper helps researches on SP surveys on dikes and embankments, and provides basis for interpretation methods of the SP data to identify leaked area and further leakage rate (or permeability).

유아의 문제행동 유형·원인에 대한 모의 인식 특성과 문제행동 지도방법에 미치는 영향요인 연구: 장애·비 장애유아 모의 비교

송서영 ( Song Seo Young ),허계형 ( Heo Kay Heoung ),손병덕 ( Sohn Byoung Duk ) 한국가족사회복지학회 2016 한국가족복지학 Vol.54 No.-

본 연구는 장애 및 비 장애유아의 모가 인식하는 문제행동 유형, 원인, 지도방법의 차이를 알아보고, 모의 사회·인구학적 변인, 유아의 문제행동 유형, 원인이 지도방법에 미치는 영향에 대해 분석하였다. 이를 위해 서울과 경기지역에 거주하는 만 2세부터 취학 전 자녀를 둔 비 장애유아 모 100명과 장애유아 모 76명, 총 176명을 대상으로 설문조사를 실시하였다. 연구 결과는 첫째, 문제행동 유형에서 내재화 문제행동과 사회적 활동의 기피요인이 대상 간에 통계적으로 유의미한 차이를 보였다. 둘째, 문제행동의 원인에서는 유아의 행동과 특성 요인에서 대상 간 유의미한 차이가 나타났다. 셋째, 문제행동 지도방법에서는 가정에서의 지원환경 구축과 사회정서 전략요인이 통계적으로 유의미한 차이를 나타냈다. 마지막으로, 비 장애유아는 모의 사회·인구학적 변인 중 모의 최종학력과 유아의 특성 요인이, 장애유아는 모의 사회·인구학적 변인 중 월 가계소득과 유아의 기타 요인이 문제행동을 지도하는데 영향을 미치는 것으로 분석되었다. 이와 같은 연구결과를 토대로 실천적용 방안을 제시하였다. 연구의 제한점과 후속 연구 제안을 추가적으로 논의하였다. The purpose of this study was to determine types, causes and instructional methods of challenging behaviors perceived by mothers of young children with and without disabilities. Then it was also to determine influencing factors of mothers` socio-demographic variables and mothers` perceptions of types and causes of young children`s challenging behaviors on using instructional methods perceived by the mothers. The subjects were 176 mothers of young children aged from two to six including 100 mothers of young children without disabilities and 76 mothers of young children with disabilities in Seoul and Gyeonggi Province. Results showed that first, there were significant differences in areas on internalized challenging behaviors and avoidance of social activities for the types of challenging behaviors. Second, on the cause of challenging behaviors, areas on children`s behaviors and nature had significant differences between the groups. Third, on instructional method of challenging behaviors, there were significant differences on areas of establishing supportive environment and social and emotional strategies. Lastly, for the mothers of young children without disabilities, mothers` educational background and children`s nature area as cause of challenging behaviors significantly affected instructional methods. For the mothers of young children with disabilities, family`s income and others area as cause of challenging behaviors affected instructional methods. Developing practical application strategies were suggested based on the results. Research limitations and further research suggestions were also discussed.

EGS 지열 저류층 유체 유동에 의한 SP 반응 모델링

송서영 ( Seo Young Song ),김빛나래 ( Bitnarae Kim ),남명진 ( Myung Jin Nam ),임성근 ( Sung Keun Lim ) 한국지구물리·물리탐사학회 2015 지구물리와 물리탐사 Vol.18 No.4

자연 전위(SP, self-potential)의 발생에는 여러 요인이 있으나 이 연구에서는 지하수의 유동에 의해 자연적으로 발생하는 유동 전위(streaming potential) 또는 전기역학적 전위(electrokinetic potential)에 대해 주로 논의한다. 유동 전위는 다공질 매질에서의 물의 흐름에 의해 인공적인 전류원 없이 전류가 발생하여 야기된 전위이다. 기존의 유동 전위를 이용한 지열 저류층 해석에서는 지표면 전위 분포 계산을 위해 일반적으로 시추공에서 주입되거나 생산되는 지하수로부터 발생하는 SP 이상만을 고려하였고, 온도 차이가 나는 지열 저류층에서의 지열수 순환에 따라 발생할 수 있는 SP에 대한 수치 모델링에는 한계가 있었다. 이에 따라 사면체 요소를 바탕으로 한 3차원 전기비저항 유한요소법에 기초하여 지열 저류층 내에서의 주입정, 생산정에 의한 SP 이상뿐만 아니라 지열 저류층에서의 지열수 순환에 따른 SP 이상까지 고려할 수 있는 알고리듬을 개발하였다. 본 논문에서는 개발한 알고리듬을 검증 한 후, 간단한 지열 저류층 모델에 지열수주입과 양수의 효과에 의한 SP 이상대의 SP 반응을 분석하였다. 향후 개발한 알고리듬을 이용하여 지층의 물성을 고려한 지열수 유동 속도 등도 고려함으로써 보다 심도 있게 지열 저류층 SP 반응을 분석하고자 한다. Self-potential (SP) is sensitive to groundwater flow and there are many causes to generate SP. Among many mechanisms of SP, pore-fluid flow in porous media can generate potential without any external current source, which is referred to as electrokinetic potential or streaming potential. When calculating SP responses on the surface due to geothermal fluid within an engineered geothermal system (EGS) reservoir, SP anomaly is usually considered to be generated by fluid injection or production within the reservoir. However, SP anomaly can also result from geothermal water fluid within EGS reservoirs experiencing temperature changes between injection and production wells. For more precise simulation of SP responses, we developed an algorithm being able to take account of SP anomalies produced by not only water injection and production but also the fluid of geothermal water, based on three-dimensional finiteelement- method employing tetrahedron elements; the developed algorithm can simulate electrical potential responses by both point source and volume source. After verifying the developed algorithm, we assumed a simple geothermal reservoir model and analyzed SP responses caused by geothermal water injection and production. We are going to further analyze SP responses for geothermal water in the presence of water production and injection, considering temperature distribution and geothermal water flow in the following research.

지열 저류층 구현을 위한 유체 유동 자연전위 모델링 및 역산

송서영(Song Seo Young),김빛나래(Bitnarae Kim),남명진(Myung Jin Nam),임성근(Sung Keun Lim) 한국신재생에너지학회 2016 한국신재생에너지학회 학술대회논문집 Vol.2016 No.5

원발부위 불명의 선암

송서영(Seo Young Song),김원석(Won Seog Kim),이혜란(Hye Ran Lee),정현식(Hyun Sik Hyun),이남수(Nam Su Lee),오성용(Sung Yong Oh),김지향(Ji Hyang Kim),김기현(Ki Hyun Kim),남은미(Eun Mi Nam),오영륜(Young Ryun Oh),정철원(Chul Won Jung),윤성수 대한내과학회 2001 대한내과학회지 Vol.61 No.3

N/A Background : To study clinical characteristics and treatment outcomes of adenocarcinoma of unknown primary site (ACUPS). Methods : A retrospective analysis of 81 patients who were diagnosed as ACUPS, seen at Samsung Medical Center from May, 1995 to July, 1999, was performed. Results : The median age of the patients was 58 years. The common sites of metastases were the lymph node, liver, lung, bone. In 49 of 81 patients (60.5%), the dominant tumor location was below the diaphragm. The majority of patiens (76 of 81) were initially treated with systemic chemotherapy including cisplatin. Responses were evaluable in 70 of 76. Eighteen of 70 patients (25.7%) responded to chemotherapy and complete remission was observed in 6 patients. The overall median survival of 81 patients was 5.6 months. The median survival of the responding patients was 18.3 months but the median survial of the nonresponding patients was 4.6 months (p<0.01). In univariate and multivariate analysis, age, performance status and response to initial chemotherapy were significant prognostic factors for overall survial. Conclusion : Poor survival rate and treatment response were observed in ACUPS but complete response and long-term survival were observed in several patients.(Korean J Med 61:234-239, 2001)

FIRST STEP Next 프로그램이 유아의 문제행동 및 사회정서역량과 교사의 사회정서교수역량에 미치는 효과

송서영(Song, Seo-Young),허계형(Heo, Kay-Heoung) 한국열린유아교육학회 2021 열린유아교육연구 Vol.26 No.3

증례 : 비소세포 폐암과 합병된 Wegener 육아종증 1예

허애영 ( Ae Young Her ),이희영 ( Hui Young Lee ),강구 ( Gu Kang ),송서영 ( Seo Young Song ) 대한내과학회 2007 대한내과학회지 Vol.73 No.3

저자 등은 객혈, 호흡 곤란을 주소로 내원한 70세 여자 환자에서 비소세포 폐암과 합병되어 눈, 코, 부비동, 신장 등을 침범한 Wegener 육아종증 1예를 경험하였고 이에 대한 국내의 보고가 드물기에 문헌고찰과 함께 보고하는 바이다. Vasculitis may be a manifestation of the paraneoplastic syndrome in association with solid and hematological cancers. There are few reports of paraneoplastic antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis in patients with solid tumors. Wegener`s granulomatosis is a systemic vasculitis characterized by necrotizing granulomatous vasculitis of the upper and lower respiratory tracts together with glomerulonephritis and are ANCA-positive. We experienced a case of Wegener`s granulomatosis complicated by non-small cell lung carcinoma (NSCLC) and we report this case with a brief review of the literature.(Korean J Med 73:336-341, 2007)

천부(약 10 m) 연약 지반 탐지를 위한 전기비저항 역산 해상도 향상 전략

장한길로 ( Hangilro Jang ),송서영 ( Seo Young Song ),김빛나래 ( Bitnarae Kim ),남명진 ( Myung Jin Nam ) 대한지질공학회 2018 지질공학 Vol.28 No.3

이 연구는 전기비저항 역산의 해상도를 높이기 위한 구조제약과 부등식 제약조건을 적용한 전기비저항 역산법을 소개하고 적용한 결과를 보여준다. 이들 역산에서는 지하투과레이다와 표면파 탐사자료로부터 사전 해석된 층서구조를 전기비저항 참조모델로 도입하고 구조제약과 부등식 제약의 유용성을 합성 모델을 이용한 역산실험으로 확인하였다. 연약지반 조건을 가정한 실험모델에 대한 구조제약과 부등식 제약 역산실험 모두 일반적인 전기비저항 역산보다 향상된 역산결과를 보여주었으나, 부등식제약 역산에서는 참조모델이 다소 부정확한 경우에도 배경층서구조를 정확히 재구성하는 동시에 천부(약 10 m 심도)의 전도성 이상체들도 정확히 나타내는 역산결과를 보여주었다. This study introduces a DC resistivity inversion method that incorporates structural and inequality constraints to enhance the resolution of resistivity inversions, and presents sample inversion results with these constraints. In the constrained inversions, a base model is constructed from a layered model through interpretation of other geophysical data. Inversion tests establish that both the structural and inequality constraints produce better resistivity models than the unconstrained inversion. However, the inequality inversion not only reproduces the exact layered structure of the background, it reproduces conductive anomalies at a depth of ~ 10 m when an inexact base model of electrical resistivity is used.

미만성 폐포출혈을 동반한 전신성 홍반성 루푸스 환자에서 Plasmapheresis를 이용한 치험

고재현 ( Jay Hyun Koh ),송서영 ( Seo Young Song ),이창근 ( Chang Keun Lee ),서기현 ( Gi Hyeon Seo ),안홍준 ( Hong Joon Ahn ),차훈석 ( Hoon Suk Cha ),김진석 ( Jin Seok Kim ),고은미 ( Eun Mi Koh ),송재훈 ( Jae Hoon Song ) 대한류마티스학회 1999 대한류마티스학회지 Vol.6 No.2

Pulmonary alveolar hemorrhage (PAH) is a rare and often fatal presenting feature of systemic lupus erythematosus (SLE) and enters the differential diagnosis of diffuse lung disease in patients with SLE. Reported mortality rates are extremely high, between 70 and 90 percents. Because death frequently occurs within the first several days of the hemorrhage, the diagnosis needs to be established promptly and treatment should be initiated immediately. Treatment of alveolar hemorrhage has included various combinations of corticosteroids, cytotoxic agents, and plasmapheresis, but survival rates have been extremely low despite aggressive therapy. We experienced a case of diffuse alveolar hemorrhage in a 29 year-old SLE male patient. PAH was diagnosed by hemoptysis, anemia, infiltration on chest X-ray and hemosiderin-laden macrophages in bronchoalveolar lavage. After high dose intravenous steroid, cyclophosphamide intravenous therapy and plasmapheresis, the condition of patient was markedly improved. He was discharged and received monthly intravenous pulse cyclophosphamide. He has done well since, showing no further pulmonary hemorrhage with steroid tapering.

굴착공사 중 지반이완영역 파악 및 지반함몰예측을 위한 실규모 현장 물리탐사 연구 사례

신동근(Shin, Dong-Keun),송서영(Song, Seo-Young),김빛나래(Kim, Bit-Narae),유희은(Yoo, Hui-Eun),남명진(Nam, Myung-Jin),노영화(No, Young-Hwa),기정석(Ki, Jung-Seok) 한국지반신소재학회 2018 한국토목섬유학회 학술발표회 Vol.2018 No.9