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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.-
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.
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
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)
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
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.
골스캔상 음성인 골전이가 FDG - PET 로 진단된 소세포폐암 2 예
송서영(Seo Yonug Song),최준영(Joon Young Choi),이충현(Choong Hyoun Rhee),김원석(Won Seog Kim),윤성수(Sung Soo Yoon),이홍기(Hong Gi Lee),강원기(Won Gi Kang),박찬형(Chan Hyun Park),김병태(Byung Tae Kim),박근칠(Keun Chil Park) 대한내과학회 2000 대한내과학회지 Vol.59 No.4
Bone scintigraphy is a very sensitive and cost-effective diagnostic method for detecting bony metastases of malignant neoplasm. However it has been reported that bone scan is less sensitive for early bony metastases, especially vertebral metastases. PET is a non-invasive clinical imaging methodology that can be used to assess such biochemical disturbance in tissue in vivo quantitatively with high resolution.We experienced two cases of small cell lung cancer with multiple bony metastases which were detected on PET imaging but not on planar bone scan. This case report suggests that FDG-PET will be a very effective diagnostic tool for bony metastases especially in clinically suspected case despite a normal planar bone scan.(Korean J Med 59:467-471, 2000)
허애영 ( Ae Young Her ),이희영 ( Hui Young Lee ),강구 ( Gu Kang ),송서영 ( Seo Young Song ) 대한내과학회 2007 대한내과학회지 Vol.73 No.3
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)
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.
김빛나래,유희은,조아현,송서영,조성오,정인석,남명진,Kim, Bitnarae,Caesary, Desy,Yu, Huieun,Cho, AHyun,Song, Seo Young,Cho, Sung Oh,Joung, Inseok,Nam, Myung Jin 한국지하수토양환경학회 2020 지하수토양환경 Vol.25 No.2
Analyzing and monitoring environmental contaminants based on geophysical exploration techniques have become important and it is now widely applied to delineate spatial distribution geophysical characteristics in wide area. Among the techniques, induced polarization (IP) method, which measures polarization effects on electrical potential distribution, has drawn much attention as an effective tool for environmental monitoring since IP is sensitive to changes in biochemical reactions. However, various reactions stemming from the presence of multiple contaminants have greatly enhanced heterogeneity of polluted sites to result in highly variable electrical characteristics of the site. Those contaminants influence chemical and physical state of soil and groundwater to alter electrical double layer, which in turn influences polarization of the media. Since biochemical reactions between microbes and contaminants result in various IP effects, IP laboratory experiments were conducted to investigate IP responses of the contaminated soil samples under various conditions. Field IP surveys can delineate the spatial distribution of contamination, while providing additional information about electrical properties of a target medium, together with DC resistivity. Reviewing IP effects of contaminants as well as IP surveys can serve as a good starting point for the application of IP survey in site assessment for environmental remediation.