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SDSS 자료를 이용한 z<0.01 필드은하의 자외광 특성
이웅,이수창,김석,이영대,박민아,이원형,Lee, Ung,Lee, Su-Chang,Kim, Seok,Lee, Yeong-Dae,Park, Min-A,Lee, Won-Hyeong 한국천문학회 2012 天文學會報 Vol.37 No.2
Sloan Digital Sky Survey (SDSS) DR7 분광자료를 이용하여 z < 0.01에 존재하는 필드(field) 은하 505개를 선별하였다. SDSS의 컬러 영상을 이용하여 필드은하들의 형태(morphology)를 타원은하/왜소타원은하, 렌즈은하/왜소렌즈은하, 나선은하, 그리고 불규칙은하로 분류하였으며, 이들 은하들에 대한 측광을 수행하였다. 한편, Galex Evolution Explorer (GALEX) 자외광 영상으로부터 선별된 은하들에 대한 자외광 측광도 수행하였다. 서로 다른 환경에 있는 은하들의 최근 별탄생 활동이 어떻게 변화하는지 파악하기 위하여 처녀자리은하단 (Virgo cluster)에 있는 은하들과 비교하여 필드은하들의 자외광-가시광 색-등급 분포를 조사하였다. 처녀자리은하단 은하들에 비하여 필드은하들은 작은 자외광-가시광색지수를 가지는 만기형 은하들의 비율이 높았다. 특히, 조기형 필드은하들의 색지수 값이 처녀자리은하단 조기형 은하들에 비해 전반적으로 더 작은 값을 나타내고, 이 특징은 질량이 작은 왜소은하에서 더욱 크게 나타남을 알 수 있었다. 한편, 환경적 효과를 거의 받지 않는 필드은하들은 환경적 효과가 큰 은하단 은하들의 진화 연구에서 환경적 효과의 크기 및 기작을 규명하는 기본 자료로 사용될 수 있음을 토의하고자 한다.
이웅,권미경,성기영,조백호,김기청,Lee, Ung,Kwon, Mi-Kyung,Seong, Ki-Young,Cho, Baik-Ho,Kim, Ki-Chung 한국식물병리학회 1999 식물병연구 Vol.5 No.1
Frost injury of crops is closely related to the epiphytic population dynamics of ice nucleation-active (INA) bacteria, and the injury can be reduced by decreasing the INA bacterial population. In order to predict the epiphytic population of INA bacteria on crops, a rapid and accurate detection method has to be developed. In the previous report, we produced some antibodies against INA proteins purified from the outer membrane of INA bacteria. However it was difficult to produce the antibodies because the purification procedures of the INA proteins were complicated, and the final yield was too low. We designed a specific peptide from the N-terminal region of INA protein by computer analysis and synthesized the peptide in vitro in this experiment. The peptide sequence was Asp-Ser-Por-Leu-Ser-Leu-His-Ala-Asp, that is corresponding to the highly conserved region in several INA proteins, with predicted beta turn, coiling, and hydrophilic region. A polyclonal anti-INA peptide antiserum produced specifically recognized INA bacteria as few as 10 colony-forming units (CFU) in the ELISA reactions and did not respond to other non-INA bacteria. Serological specificity of the anti-INA peptide antiserum will facilitate the forecasting of the INA bacterial population dynamics on crops.
이웅,Lee, Woong 한국재료학회 2018 한국재료학회지 Vol.28 No.11
Finite element analyses are carried out to understand the piezoelectric behaviors of ZnO nanowires. Three different types of ZnO nanowires, with aspect ratios of 1:2. 1:31, and 1:57, are analyzed for uniaxial compression, pure bending, and buckling. Under the uniaxial compression with a strain of $1.0{\times}10^{-4}$ as the reference state, it is predicted that all three types of nanowires develop the same magnitude of the piezoelectric fields, which suggests that longer nanowires exhibit higher piezoelectric potential. However, this prediction is not in agreement with the experimental results previously reported in the literature. Such discrepancy is understood when the piezoelectric behaviors under bending and buckling are considered. When only the strain field due to bending is present in bending or buckling, the antisymmetric nature of the through-thickness stain distribution indicates that two piezoelectric fields, the same in magnitude and opposite in sign, develop along the thickness direction, which cancels each other out, resulting in a zero net piezoelectric field. Once additional strain contribution due to axial deformation is superposed on the bending, such field cancelling is compensated for due to the axial component of the piezoelectric field. Such numerical predictions seem to explain the reported experimental results while providing a guideline for the design of nanowire-based piezoelectric devices.
양극성장애에 대한 Valproic Acid와 Olanzapine 치료 중 발생한 호산구증가증과 전신증상을 동반한 약물발진(DRESS) 증후군 1예
이웅,임세원,Lee, Ung,Lim, Se-Won 대한생물정신의학회 2017 생물정신의학 Vol.24 No.3
Drug rash with eosinophilia and systemic symptoms (DRESS) syndrome is a potentially life-threatening, medication-induced hypersensitivity reaction with long latency. It is characterized by fever, rash, leukocytosis with eosinophilia, atypical lymphocytosis, and internal organ involvement. The most common causes of DRESS syndrome are sulfonamides and anticonvulsants such as carbamazepine and lamotrigine. However, valproic acid and olanzapine could develop DRESS syndrome. We report a case of DRESS syndrome associated with valproic acid and olanzapine in a 41 years old male patient with bipolar disorder.
이웅,조성준,Lee, Ung,Cho, Sung Joon 대한생물정신의학회 2020 생물정신의학 Vol.27 No.2
Depressive disorder is a very common disease, clinical manifestations vary, and the mechanism is not clear. Therefore, a pharmacotherapy is very important to achieve sufficient therapeutic effect, but the choice of drug is not easy due to the occurrence of side effects of treatment and confusion with clinical features. It is easy to overlook the side effects of weight gain with antidepressants compared with antipsychotics, but they are frequently observed in clinical settings. The first-generation antidepressants have higher weight gains than selective serotonin reuptake inhibitors. Serotonin norepinephrine reuptake inhibitors are observed to have less weight gain, and dopamine norepinephrine reuptake inhibitors have weight loss effect due to decreased appetite. Mirtazapine, an atypical antidepressant, has a strong histamine H1 blockade, and gains weight gain from short-term use. The effects of desvenlafaxine, vortioxetine, and agomelatin on weight, which have recently been increasing in use, have not been largely identified. For better compliance, studies on weight gain due to the use of antidepressants are needed.
이웅,정민섭,박상혁,Lee, Woong,Jung, Min-Sub,Park, Sang-Hyuk 국제문화기술진흥원 2020 The Journal of the Convergence on Culture Technolo Vol.6 No.4
현재 우리나라 군대는 병역자원 감소 및 군 복무기간 단축으로 인한 현실적 위협으로 직면해 있는 환경에 처해있다. 안보를 최우선시하는 군사적 관점에 따라, 국방부를 비롯한 정부 기관 및 국제기관들이 인식을 같이 하고 있는 일반적으로 객관적인 내용 위주로 반영하여 미래 육군에 미치는 영향 및 시사점을 도출하고자 하였다. 즉, 본 연구는 국제질서를 바라보는 주류 관점(현실주의, 자유주의)의 인식 방향을 살펴보고, 국제질서 이론 및 전망에 대하여 국가안보에 기여하는 군 조직의 본질적 특성을 반영하는 군사적 합목적주의에 입각하여 한반도 미래 안보전략을 수립하는 방향과 큰 틀을 제시한다. Currently, the nation's military is facing a real threat due to a reduction in military service resources and shorter service periods. Based on the military view that puts security first, the military tried to draw its impact and implications on the future army by reflecting the general objective content that the Ministry of National Defense and other government agencies and international agencies share. In other words, this study looks at the direction of the perception of mainstream perspectives (realism, liberalism) on international order, and presents the direction and framework for establishing future security strategies for the Korean Peninsula on the basis of military relevance that reflects the essential characteristics of military organizations contributing to national security on the theory and prospects of international order.
실천공학 교육 방법론 : 이공계 대학생의 자기주도학습준비도 진단 및 요인분석 -한국기술교육대학교 재학생을 중심으로
임세영 ( Se Young Lim ),이웅일 ( Woong Il Lee ) 한국실천공학교육학회 2010 실천공학교육논문지 Vol.2 No.1
?In this study, the assessment and the factor analysis of the self-directed learning readiness for engineering students were conducted. As measurement tool was used the self-directed learning readiness scale of Guglielmino`s SDLRS questionnaire in Korean translation. It was surveyed under 519 students of Faculty of Engineering of Korea University of Technology and Education. Responded questionnaires were 496. As a result, seven factors were identified: ①openness to learning, ②initiative and inquiring mind, ③independence and basic learning skills, ④creativity, ⑤accepting responsibility for learning, ⑥love of learning, ⑦positive orientation of the future. And the scale was confirmed in validity. It was confirmed that the mean value of openness to learning and of love of learning were higher than average, while mean value of independence and basic learning skills, accepting responsibility for learning were lower than average. ,there was the difference in SDLRS by students` personal backgrounds, but there were statistically significant differences in seven factors.