http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
증례보고: 이하선에 발생한 다형선종 유래 피막내 암종 1예
이승열(Seungyeol Lee),손황규(Hwangkyu Son),박호섭(Ho Sub Park),송창면(Chang Myeon Song) 대한두경부종양학회 2022 대한두경부 종양학회지 Vol.38 No.1
Among a variety of malignant types for parotid gland tumors, intracapsular carcinoma ex pleomorphic adenoma which is classified as a non-invasive tumor has been reported rarely. We report a case of a 69-years old patient, who presented with a left parotid mass that was detected 30 years ago. Fine needle aspiration biopsy result of the mass was “suggestive of pleomorphic adenoma”. Superficial partial parotidectomy was performed for the mass and the permanent pathologic finding was “intracapsular carcinoma ex pleomorphic adenoma” which was a salivary ductal carcinoma with well-preserved myoepithelial cells surrounding the malignant epithelial cell clusters. Surgical resection is the main treatment modality for the treatment of intracapsular carcinoma ex pleomorphic adenoma. Herein, we present the case with a review of literature.
이승열(Seungyeol Lee),이상철(Sangchul Lee),양경희(Kyounghee Yang),정훈영(Hoon Young Jeong) 한국암석학회 2012 암석학회지 Vol.21 No.4
화산가스의 측정법은 크게 원격 측정법과 직접 채취법이 있다. 원격 측정법에서 COSPEC는 SO<sub>2</sub>를, Li-COR는 CO<sub>2</sub>를, FT-IR는 다양한 화산가스를 측정한다. 하지만 주변 수계의 영향으로 백두산의 화산가스 농도가 낮아 원격 측정법에 의한 화산가스의 분석은 불가능하다. 대신 직접 채취법은 화산체에서 분출하는 화산가스를 직접 채취해 분석하는 방법으로 화산가스의 농도가 낮은 백두산에 적용할 수 있다. 직접 채취법은 포집방법에 따라서 진공병법과 관류병법이 있으며, 포집용액에 따라 Giggenbach method, NH<sub>4</sub>OH method, acid condensate method로 나뉜다. 직접 채취법에 의해 얻은 시료는 전처리 과정을 거친 후 포집용액과 화산가스의 종류에 따라서 GC, IC, HPLC, 적정법, TOC-IC, ICP-MS 등을 이용해 분석한다. 최근 들어 백두산이 가까운 장래에 다시 분출할 것이라는 징후가 속속 보고되고 있다. 하지만, 현재 우리나라는 화산가스의 채취 및 분석법이 확립되지 않은 실정이다. 따라서 본 연구에서는 지금까지 보고된 다양한 화산가스의 측정법을 검토하고, 이들 중 백두산 화산가스의 측정에 활용 가능한 기법을 상술했다. The monitoring methods for volcanic gases are divided into remote sensing and direct gas sampling approaches. In the remote sensing approach, COSPEC and Li-COR are used to measure SO<sub>2</sub> and CO<sub>2</sub>, respectively, with FT-IR for detection of a range of volcanic gases. However, the remote sensing approach is not applicable to Mt. Baegdu, where the atmospheric contents of volcanic gases are very low as a result of the strong interaction of volcanic gases with the nearby surface water and groundwater. On the other hand, the direct gas sampling approach involves the collection of volcanic gases from volcanic vents or fumaroles and the subsequent laboratory analysis, thus making it possible to measure even very low levels of volcanic gases. The direct sampling approach can be subdivided into the evacuated bottle method and the flow-through bottle method. In applying both methods, sampling bottles typically contain reaction media to trap specific volcanic gases. For example, NaOH solution(Giggenbach bottle), NH<sub>4</sub>OH solution, and acid condensates have been experimented for volcanic gas sampling. Once taken from vents and fumaroles, the samples of volcanic gases are pretreated and subsequently analyzed for volcanic gases using GC, IC, HPLC, titrimetry, TOC-IC, or ICP-MS. Recently, there has been the increasing number of evidences on the potential volcanic activity of Mt. Baegdu. However, little technical development has been made for the sampling and analysis of volcanic gases in Korea. In the present work, we reviewed various volcanic gas monitoring methods, and provided the detailed information on the monitoring methods applied to Mt. Baegdu.
전남 해남의 순신 금광산 지역에 산출하는 응회질암에 포획된 유리포유물
이승열(Seungyeol Lee),양경희(Kyounghee Yang),전병근(Byung Geun Jeon),백길(Gil Bak),고상모(Sang Mo Koh),서정률(Jeong-Ryul Seo) 한국암석학회 2009 암석학회지 Vol.18 No.4
전남 해남의 순신 천열수 금광상을 배태하고 있는 응회질암층은 규화변질작용과 견운모 변질작용을 받았으나 석영반정에는 포획될 당시의 조성이 보존되어 있는 투명하고 균질한 유리포유물이 산출되고 있다. 유리포유물의 크기는 5-200 ㎛이며 유리(60~80 vol%) + 기포(15~30 vol%) ± 딸결정(<10 vol%)으로 구성되어 있다. 일정한 정육각형의 고온석영 결정형의 유리포유물은 석영 반정의 가장자리에 산출되는 경향이 있으며 모두 초생포유물이다. 유리포유물은 석영반정이 성장하고 있던 마지막 단계의 액상선 성분을 나타내는 것으로 매우 분화된 K 성분이 높은 칼크-알칼리계열에 속하는 유문암질암이다. 이 액상선의 멜트내의 Au₂O₃ 함량은 매우 미비하여(<0.30 wt%) Au 성분은 잔류용융체에 부화되지 않았음을 나타내고 있다. 유리포유물이 나타내는 조직적 특성은 마그마가 지표에 분출되기 전에 이미 2-4 wt%의 물에 포화되었음을 지시하며, 고온 석영형으로 산출되는 유리포유물의 모습은 모결정인 석영이 β-석영 안정영역에서 결정화작용이 끝났음을 의미한다. 유리포유물에 용해되어 있는 2-4 wt%의 물에 포화된 마그마의 포화압력은 약 300-900 bar를 나타낸다. 이는 해남의 화산암을 형성한 마그마는 적어도 지하 0.8-2.5 ㎞의 깊이의 마그마 챔버에서 분출한 것으로 계산된다. Clear and homogeneous glass inclusions are well preserved at the rim of the quartz phenocrysts of tuff from Sunshin epithermal Au deposit, Haenam, although the host rocks experienced extensive silicification and argillic alteration. Glass inclusion vary in size from 5 ㎛ to larger than 200 ㎛ consisting of glass(60~80 vol%) + vapor bubble(15~30 vol%) ± daughter crystals(<10 vol%). Most of glass inclusions are cubic to rectangular in shape, indicating that the host quartz grew in the stability field of β-quartz. All the glass inclusions appear to be primary. Glass inclusions are composed of highly evolved high-K calcalkaline rhyolites, which can represent the final liquidus phase of the magma system. The Au₂O₃ concentration (<0.30 wt%) is trivial in the glass, indicating there was no enrichment in the final residual melt. Textural characteristics suggest that magma was water-saturated shortly before or during the eruption. H₂O content of the glass (ca. 2-4 wt%) suggests a water saturation pressure(P<SUB>H2O</SUB>) of about 300-900 bars. This pressure implies a minimum depth of 0.8-2.5 ㎞ for the magma chamber.
인간-로봇 협업기반 박스형 하수관로 유지관리 로봇의 개념설계
이승열(Seungyeol Lee),최부식(Busik Choi),정재웅(Jaeung Jeong),이혁준,안은지(Eunji An) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
Reinforced Concrete Box Culverts (RCBCs) are the fast, easy solution for applications under roads, railways and runways as drainage culverts, underpasses or service ducts. Sudden road collapses (Sinkhole) can occur at poorly engineered and maintained RCBCs neighboring sites. One of the problems associated with maintenance of RCBC is that the work has been overlooked current maintenance problems including; a labor-intensive, costly, and hazardous work. This paper is to propose a RCBC maintenance robot which can assist human labors during RCBC maintenance works in underground. To improve productivity and safety in RCBC maintenance procedures, a human-robot cooperative system is described in conceptual design of the RCBC maintenance robot, would describe integration of advantages of both robots and humans, and bilateral interaction of between robots and humans.
이승열(SeungYeol Lee),유석종(SeokJong Yoo),최종호(JongHo Choe),길명수(MyeongSu Gil),이계영(KyeYoung Lee),이상헌(SangHeon Lee),한창수(ChangSoo Han) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
The objective of the study is to propose a heavy ceiling glass installation robot in hazardous construction site. This system combines a basic system composed of a multi-DOF manipulator and an aerial lifts with an additional module for construction works. According to an additional module type combined with a basic system, it can be used in a various construction fields. In this study, we describe a construction robot which helps a human operator handle easily heavy ceiling glass in case of using the cooperation system on construction site. This study introduces a HRI (Human Robot Interface) as additional module for a HRC (Human-Robot Cooperation) in construction site.