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안세한 ( Se Han Ahn ),김민수 ( Min Su Kim ),한민성 ( Min Sung Han ),윤정호 ( Jung Ho Yoon ),국은희 ( Eun Hee Kook ),전세용 ( Se Yong Jeon ),김철현 ( Cheol Hyeon Kim ) 대한내과학회 2011 대한내과학회지 Vol.80 No.2
The nodular form of muscular sarcoidosis is a rare malady that is often confused with a soft-tissue neoplasm or other lesion. Here, we present a case of nodular muscular sarcoidosis in the arms and legs of a 59-year-old woman. She presented at our hospital with a painless nodule in her left arm. Excision was performed and she was diagnosed with sarcoidosis. One year later, nodular sarcoidosis recurred in her arms and legs. After 2 months of steroid medication, the nodules disappeared. The patient has been followed for 2 years and no evidence of recurrence has been observed. (Korean J Med 2011;80:247-249)
휴먼 오피니언 자동 분류 시스템 구현을 위한 비결정 오피니언 형용사 구문에 대한 연구
안애림(Aelim Ahn),한용진(Yong-Jin Han),박세영(Se-Young Park),남지순(Jee-Sun Nam) 한국정보과학회 2011 한국정보과학회 학술발표논문집 Vol.38 No.1C
본 연구에서는, 웹 문서로부터 특정 상품에 대한 의견 문장을 분석하는 오피니언 마이닝(Opinion Mining) 연구의 일환으로, 특히 함께 공기하는 자질 명사에 따라 그 극성 값이 달라지는 ‘비결정 오피니언어휘’의 처리를 위해서 도메인을 ‘맛집’으로 한정하여 공기하는 도메인 키워드의 목록을 결정하고, 이를 부분문법그래프(Local Grammar Graphs) 방법론을 통해서 이들 간의 어휘·통사적 관계를 결정해 주었다.
휴먼 오피니언 자동 분류 시스템 구현을 위한 비결정 오피니언 형용사 구문 처리
안애림(Ae-Lim Ahn),한용진(Yong-Jin Han),박세영(Se-Young Park),남지순(Jee-Sun Nam) 한국정보과학회 2012 정보과학회 컴퓨팅의 실제 논문지 Vol.18 No.2
본 연구에서는 웹 문서에 실현된 사용자 의견문장을 분석하는 오피니언 마이닝(Opinion Mining) 연구의 일환으로, 특히 함께 공기하는 자질 명사에 따라 그 극성 값이 달라지는 '비결정 오피니언 어휘'의 처리를 위하여 도메인을 '맛집'으로 한정한 후 이러한 오피니언 어휘와 공기하는 도메인 키워드의 목록을 결정하고, 이를 부분문법그래프(Local Grammar Graphs) 모델을 이용하여 기술하였다. 이러한 비결정 오피니언 어휘에 대한 어휘·통사적 기술이 수행됨으로써 현 단계의 오피니언 자동 분류 시스템의 성능을 향상시킬 수 있음을 확인하였다. This study aims at classifying semantic polarity (i.e. Positive, Negative or Neutral) of opinion sentences from web documents, especially including "Non-deterministic" opinion words. To analyze their polarity in opinion sentences, we focus on the online reviews about restaurants and describe the relation of domain key words and non-deterministic opinion words by Local Grammar Graph(LGG) formalism.
불소가 첨가된 비정질 탄소 박막을 이용한 수직 액정 배향 효과
안한진 ( Han Jin Ahn ),김경찬 ( Kyung Chan Kim ),김종복 ( Jong Bok Kim ),황병하 ( Byoung Har Hwang ),백홍구 ( Hong Koo Baik ),이세종 ( Se Jong Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 2005 ELECTRONIC MATERIALS LETTERS Vol.1 No.1
Homeotropic orientations of nematic liquid crystal (NLC) are investigated on fluorinated diamond-like carbon (FDLC) films that are exposed to an Ar ion-beam. These novel investigations result in the realization of a completely dry processing technique for both the thin film deposition and alignment steps. FDLC films are selected on the basis of the characteristics of the homeotropic alignment layer with regard to the relationship between surface tension and LC orientation. Extreme hydrophobic property from the CFx bonding on the surface contributed largely to the uniform vertical LC alignment. Ion beam process which was treated after FDLC deposition generates suitable pretilt angle tram the surface normal. Selected pretilt angles in the range of 71~90˚could be obtained with ion beam irradiation. These pretilt angles had sensitive dependences on the thin film composition and the angle of ion-beam irradiation.
전세용 ( Se Yong Jeon ),김민수 ( Min Soo Kim ),안세한 ( Se Han Ahn ),국은희 ( Eun Hee Kook ),윤정호 ( Jung Ho Yoon ),한민성 ( Min Sung Han ),이재철 ( Jae Cheol Lee ) 대한내과학회 2009 대한내과학회지 Vol.77 No.2
Metastatic tumors to the myocardium proper are uncommon and difficult to diagnose because they have nonspecific signs and symptoms. Electrocardiogram (ECG) changes mimicking ischemic heart disease often develop when non-conducting tumor tissue replaces cardiac muscle. Hence, a high level of suspicion is required to differentiate ECG changes caused by myocardial metastasis from those caused by coronary heart disease in cancer patients. We describe a case of primary lung cancer with myocardial metastasis that showed diffuse ST segment elevation and T wave inversion on the ECG, with a relevant literature review. (Korean J 77:232-235, 2009)
초정밀 가공을 위한 진동절삭 시스템의 Tool holder 개발 및 평가
이세윤(Se-Yun Lee),현준안(Jun-Ahn Han),김지운(Ji-Woon Kim),곽용길(Yong-Kil Gwak),강동배(Dong-Bae Kang),안중환(Jung-Wahn Ahn) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.3
In light guide panels, the PMMA sheet that is used in liquid crystal displays plays an important role in scattering the incident light and requires very fine machining as the sheet is directly related to the optical characteristics of the panels. High speed end milling(HSE) and high speed shaping(HSS) processes that are widely adopted and applied to the precise machining of light incident plane through vibration-assisted HSS for increasing the optical quality by minimizing the above-mentioned problems. The cutting tool and the tool post presented in this paper are designed by the authors to increase the magnitude of the cutting stroke by adopting the resonant frequency without weakening the stiffness and to reduce vibrations during even high speed feeding. The dynamic haracteristics of thecutting tool and the tool post are evaluated through simulation and experiment as well. The results reveal very appropriate dynamic characteristics for vibration-assisted HSS.
공공발주 모듈러 공동주택의 제로에너지건축물 인증등급 달성을 위한 개선요소 및 증분비용 분석 사례 검토
이세연(Lee, Se-Yeon),정찬우(Jung, Chan-Woo),안용한(Ahn, Yong-Han) 대한건축학회 2023 대한건축학회논문집 Vol.39 No.12
This study examined the primary energy requirements and additional costs associated with different combinations of technology and improvement factors to achieve a zero-energy building (ZEB) grade for public order modular apartment houses. The analysis considered three stages of performance for six improvement factors. The findings revealed that individual enhancements to passive and active elements did not meet ZEB criteria. However, installing photovoltaic (PV) systems covering at least 40% of the rooftop area satisfied the ZEB 5th grade. To propose an effective combination of improvement factors for ZEB certification, the cost performance index was analyzed, and factors were prioritized accordingly. The analysis indicated incremental costs per unit area of 62,392 won for ZEB 5th grade, 96,380 won for ZEB 4th grade, and 120,389 won for ZEB 3rd grade. This study holds significance as it provides insights into energy performance and incremental costs during the introduction of zero-energy buildings and modular apartment houses.
TNF-α로 유도된 혈관내피세포의 혈관염증에 미치는 오적산(五積散)의 억제 효과
한병혁 ( Byung Hyuk Han ),윤정주 ( Jung Joo Yoon ),김혜윰 ( Hye Yoom Kim ),안유미 ( You Mee Ahn ),홍미현 ( Mi Hyeon Hong ),손찬옥 ( Chan Ok Son ),나세원 ( Se Won Na ),이윤정 ( Yun Jung Lee ),강대길 ( Ho Sub Lee ),이호섭 대한본초학회 2018 大韓本草學會誌 Vol.33 No.4
Objectives : Ojeoksan, originally recorded in an ancient Korean medicinal book named “Donguibogam” and has been used for the treatment of circulation disorder of blood which was called blood accumulation (血積) in Korean medicine. Therefore, this study was carried out to investigate the beneficial effect of OJS on vascular inflammation in HUVECs. Methods : We evaluated the effect of OJS on the expression of cell adhesion molecules and protective role in HUVEC stimulated by TNF-α by using Western blot. Results : Pretreatment with OJS decreased the adhesion of HL-60 cells to TNF-α-induced HUVEC. OJS suppressed TNF-α-induced expression level of cell adhesion molecules such as intracellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1(VCAM-1), and endothelial cell selectin (E-selectin). Moreover, OJS significantly decreased TNF-α-induced production of intracellular reactive oxygen species (ROS); and inhibited the phosphorylation of IκB-α in the cytoplasm compared to the experimental group. Pretreatment with OJS inhibited the trans-location of NF-κB p65 to the nucleus. OJS also inhibited phosphorylation of MAPKs compared to the experimental group. OJS significantly increased the protein expression of Nrf2 and HO-1. Conclusions : Ojeoksan has a protective effect on vascular inflammation, and might be a potential therapeutic agent for early atherosclerosis.