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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).
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.
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)
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.
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)
송서영(Song, Seo-yeong) 한국어문교육학회 2009 어문학교육 Vol.38 No.-
Correctly using punctuations in Korean Language studies plays an important role in phonetically reflecting accents, syntactically connecting structural elements and sentence structures, and accurately informing what the speaker is intending to the listener in communication. However, in spite of such importance, punctuation of the Korean language has been neglected compared to orthography or standard language, and punctuation errors frequently occur within circumstances where punctuation has been suggested as an appendix to Korean language orthography and there is no explanation beside the other rules. Accordingly, this paper seeks to search and present the points needed to be taken heed of especially when materializing and using punctuations by comparing and analyzing the cases where current punctuations are used incorrectly in actual writings. Since it is judged that the task of analyzing the punctuation use capacity of teachers who especially teach elementary students would be valuable because they are the main bodies conducting punctuation education for learners, punctuation errors were analyzed by dividing Busan National University of Education Graduate School of Education master’s degree theses into Social Sciences, Natural Sciences, the Arts, and Physics. In chapter II, contents related to punctuation in the Educational Curriculum were examined from the 5th Curriculum up to the 2007 Revised Curriculum. This was analyzed after a survey about concepts on punctuation was given to teachers. In the 6th Curriculum, the most number of punctuations were dealt with, while in the 7th Curriculum and the 2007 Revised Curriculum afterwards, it was confirmed that as the types of punctuations were reduced, the grades guided also shrank. For abbreviations suggested in the 6th Curriculum, 19% of all teachers chose the wrong markings while 45% are using linguistics differing from the punctuation they thought was usually right. It could be predicted that errors were generated because correct punctuations were not used due to keyboard difficulties since most documents are presently operated on computers. In chapter III, punctuation errors shown in master’s degree theses were analyzed by dividing into Social Sciences, Natural Sciences, the Arts, and Physics; the result showed that common errors were mostly found. Errors related to the period were forgetting to put a period behind display characters and dates and in front of a double quotation mark when a quotation is finished. Errors related to the comma were their frequent, excessive use along with errors of habitually putting one behind general conjunctions. Errors related to the quotation mark were confusing the functions of double and single quotation marks along with spacing errors generated when working with documents on the computer. Besides theses, errors in replacing punctuation marks, changing punctuation shapes and location, and spacing were found. In chapter IV, points were given for teachers to put especial attention to when using punctuation marks. By suggesting uses and examples centered on the period, comma, quotation mark, tilde, colon, and ellipsis which are the easiest punctuation marks for teachers to get wrong, it was intended to be used in correcting punctuation errors of teachers. This research places its purpose on raising teachers’ recognition of punctuation by searching, materializing, and analyzing the errors of punctuation from master’s degree theses which teachers actually wrote. As teachers familiarize themselves with punctuation errors frequently found in master’s degree theses and use them correctly, they are expected to lead punctuation teaching of learners and guide correct Korean language lifestyles.