기후변화의 영향평가를 위한 대순환모형과 지역기후모형의 비교 연구

이동근,정휘철,김재욱 한국환경영향평가학회 2006 환경영향평가 Vol.15 No.4

Impacts of global warming have been identified in many areas including natural ecosystem.A good number of studies based on climate models forecasting future climate have beenconducted in many countries worldwide. Due to its global coverage, GCM, which is a mostfrequently used climate model, has limits to apply to Korea with such a narrower andchanges with a climate model fully reflecting characteristics of Korean climate. In this respect,this study was designed to compare and analyze the GCM and RCM in order to determine asuitable climate model for Korea.In this study, spatial scope was Korea for 10 years from 1981 to 1990. As a research method,current climate was estimated on the basis of the data obtained from observation at the GHCN.Future climate was forecast using 4 GCMs furnished by the IPCC among SRES A2 Scenario asfor the purpose of comparing data obtained from observation with GCM and RCM.As a result of this study, average annual temperature of Korea between 1981 and 1990 wasfound to be around 12.03˚C, with average daily rainfall being 2.72mm. Under the GCM,average annual temperature was between 10.22 and 16.86℃, with average daily rainfallCorresponding Author: Jae-Uk Kim, Graduate School of Environmental Studies, Seoul National University, San 56-1, Shillim-dong, Gwanak-gu, Seoul, 151-742, Korea Tel: 82-2-880-4885 E-mail: japa95@hanmail.net

학생들의 Zeno의 역설(반분 역설과 아킬레스 역설) 과제 해결 과정에 대한 연구 : 학생들의 표현을 중심으로

이동근 대한수학교육학회 2019 학교수학 Vol.21 No.2

This study is a follow-up study of Lee (2019) and Lee (2018). This study is a case study based on 12 teaching experiment data on three high school students(second). It focuses on the 8th to 12th teaching experiment data related to the research topic. In particular, it discusses how students who accept potential Infinite perspective when they encounter the half paradox and the Achilles paradox. And analyzed how students solve the paradoxical situation. This study can provide information on how students with a conceptual idea solve their concerns about reachability. This seems to be the basis for learning studies related to students' infinite concepts. 본 연구는 학생들의 극한 문제의 풀이 과정에서 ‘대수적 절차’와 ‘그래프를 이용한 방식’의 연결에 대한 이동근(2019)의 연구와, 다양한 형태의 등비급수 과제들에 대한 학생들의 표현에 대하여 연구한 이동근(2018)의 연구에 대한 후속 연구로서 학생들의 ‘도달 가능성’에 대한 표현을 구성적 관점에서 분석한 연구이다. 본 연구는 세 명의 고등학생들을 연구 대상으로 하여 진행한 12차시의 교수실험 자료에 근거한 사례연구이며, 연구주제와 관련된 8차시에서 12차시까지의 교수실험 자료를 중심으로 논하고 있다. 특히 가무한 관점에서 무한을 받아들이는 학생들이 반분 역설과 아킬레스 역설을 접하였을 때 어떻게 받아들이는지와 또 어떻게 역설적 상황을 해결해가는지에 대하여 학생들의 표현을 중심으로 분석하였다. 본 연구는 가무한 개념을 가진 학생들이 ‘도달 가능성’에 대한 문제를 어떻게 해결해가는지에 대한 정보를 제공할 수 있으며, 이는 학생들의 무한 개념과 관련된 학습 연구에 기초가 될 수 있을 것으로 보인다.

고등학교 수학 수업에서 과정 중심 평가 수업을 위한 피드백 중심 수업 자료 개발에 관한 연구

이동근,한창훈 한국수학교육학회 2022 수학교육논문집 Vol.36 No.1

This study is a study that developed class materials that can apply Process-Focused Assessment to classes by paying attention to feedback using teacher learning community programs centered on teachers belonging to the same school in the field. In particular, this study was conducted with the aim of developing class materials applicable to actual classes. At this time, We thought about how to provide appropriate feedback when applying course-based evaluation in school field classes. It was conducted according to the procedure of data development research by Lee & Ahn(2021). As for the procedure of data development itself, an evaluation plan was established by establishing a strategy to reconstruct achievement standards and confirm understanding based on curriculum analysis. Next, an evaluation task, a scoring standard table, and a preliminary feedback preparation table were developed. In addition, based on these development materials, a learning guidance plan that can predict scenes when applying actual classes was developed as a result. This study has value as a practical study that can contribute to providing a link between theory and field schools. It is also meaningful in that it considered how the teacher would grasp when to provide feedback in performing rocess-Focused Assessment. Likewise, in providing feedback by teachers, it is meaningful in that it reflects in the data development how to prepare in advance and take classes according to the characteristics of the subject. Finally, it seems that the possibility of field application can be improved in that the results of the 4th class developed in this study are presented in a form applicable to the class directly in the field. 본 연구는 현장의 동일교 소속 교사들을 중심으로 교원학습공동체 프로그램을 이용하여 피드백에 주목하여 과정 중심 평가를 수업에 적용할 수 있는 수업 자료를 개발한 연구이다. 특히 실제 수업에 적용 가능한 수업 자료를 개발하는 것을 목적에 두고 진행한 연구이다. 이때 학교 현장 수업에서 과정 중심 평가를 적용할 때 어떻게 적절한 피드백을 제공할 것인지 고민하였다. 이동근, 안상진(2021)의 자료 개발 연구의 절차를 따라 진행하였으며, 자료 개발 자체의 절차는 교육과정 분석에 근거한 성취기준의 재구성과 이해도 확인 전략을 수립하여 평가계획을 수립하였다. 다음으로 평가과제와 채점 기준표 및 사전 피드백 준비표를 개발하였다. 또한 이들 개발 자료들에 근거하여 실제 수업적용 시의 장면을 예상할 수 있는 학습 지도안을 결과물로 함께 개발하였다.

[지역보도부문/기획다큐_제54회 이달의 방송기자상] 혈세는 거름이 아니다

이동근 (사)방송기자연합회 2013 방송기자 Vol.12 No.-

기술현황분석-건축용 재료로서의 타이타늄과 가공기술

이동근,이용태 재료연구소 2008 機械와 材料 Vol.20 No.3

플럭스(flux)를 이용한 타이타늄의 고효율 접합기술

이동근,이용태,Lee, Dong-Geun,Lee, Yong-Tae 재료연구소 2007 機械와 材料 Vol.19 No.2

산지 타당성 평가를 위한 산지특성 평가 지표 개선 연구 -가평을 중심으로-

이동근,백경혜,김호걸,김효민,허태철,주우영 한국산림과학회 2012 한국임학회 학술발표논문집 Vol.2012 No.-

소아청소년 갑상선 분화암의 치료 결과

이동근,홍종철,강명구,박헌수 대한이비인후과학회 2012 대한이비인후과학회지 두경부외과학 Vol.55 No.7

Background and Objectives Differentiated thyroid cancer (DTC) in children and adolescents is an advanced type of disease that has frequent recurrence and metastasis. But DTC in children and adolescents has a more favorable outcome than those in adults. We report the clinical features and treatment outcomes in children and adolescents who have undergone surgeries. Subjects and Method We studied 16 patients younger than 21 years old who were diagnosed as DTC from August 1995 to January 2011. We retrospectively reviewed for the following factors: clinical features, tumor size, multifocality, pathologic type, regional or distant metastasis, recurrence, complications, extent of surgery, postoperative I-131 therapy with medical records, imaging studies, and pathologic reports. Results The mean follow-up periods were 87 months. As an initial operation, a total thyroidectomy alone was performed on 4 patients, central compartment neck dissection on 7 patients, a modified radical neck dissection on 5 patients. On the pathologic reports, observed were 14 papillary thyroid cancer patients, 2 follicular thyroid cancer patients. Extrathyroidal extension was observed in 10 patients. Cervical lymph node involvement was noted in 11 patients. Two patients exhibited local lymph node recurrences, and one patient distant metastasis in the lung. After an additional operation and radioactive iodine therapy, they are alive at the present time, without recurrence. Conclusion Even with the limited number of cases in our study, we found that pediatric DTC has common extrathyroidal extension and lymph node metastasis. Careful surgical approach may protect postoperative complications. Regular follow up can detect recurrence earlier and could ensure disease free survival in pediatric DTC.

송전선로 건설에 따른 산림훼손의 최소화 관리방안

이동근,강현경 한국조경학회 2003 한국조경학회지 Vol.30 No.6

The purpose of this study was to minimize the forest disturbance around an entry road of a power transmission tower construction site between Taean and Sinsesan, Chungnam. The main study field was classified into existing materials and a GIS, remote sensing analysis, and a field examination. This information was used to identify the most suitable entry road using a degree of green naturality map, eco-naturality map, actual vegetation map, and a forest state map as the existing materials. Also, the study used an normalized difference vegetation index, altitude and slope map in order to make the evaluation materials which used an remote sensing image, and GIS. This data was used to choose an optimum area, and diagnosed the current condition of the vegetation with a field survey of the area. It analyzed vegetation structure, species diversity, the age of trees in a field examination. Subsequently, we proposed four area types based on the analysis results--preservation area, transplantation area, restoration area and development area. As a result, the preservation area was categorized into 8 grades, according to the degree of green naturality, large area of breast diameter at Pinus densiflora community, competition area of Pinus densiflora and Quercus spp. and Quercus spp. community of over 20 years old. A transplantation area established 46 optimum areas according to the GIS analysis and vegetation investigation results. Vegetation restoration plan for disturbance area should be made based on ecological value of existing vegetation to worthwhile area as Quercus spp. mixing forest proposed. The development area selected a ecological worthless place as an artificial forest where Pinus densiflora and Pinus thunbergii growth is poor. This research results suggest that restoration of vegetation will be possible in the real world. Also, ecological restoration guidelines will be made through building and analyzing data base and routine monitoring of transplantation and restoration area.

스카이브릿지로 연결된 벨트월이 있는 고층건물의 효율적인 동적해석

이동근,김현수,양아람,고현,Lee, Dong-Guen,Kim, Hyun-Su,Yang, Ah-Ram,Ko, Hyun 한국전산구조공학회 2009 한국전산구조공학회논문집 Vol.22 No.3

In the design of a sky-bridge, repetitive boundary nonlinear time history analyses are required to accurately predict dynamic behaviors of the connected buildings because the connection systems of a sky-bridge usually have high nonlinearity. If a conventional finite element model for entire high-rise buildings is used for repetitive boundary nonlinear time history analyses, computational efforts could be significant. In this study, an equivalent cantilever model considering the belt-wall effect has been proposed for an efficient dynamic analysis and a performance evaluation of vibration control of high-rise buildings connected by a sky-bridge. To verify the accuracy and efficiency of the proposed equivalent model, boundary nonlinear time history analyses of 49- and 42-story example buildings connected by a sky-bridge have been performed for wind excitation. Based on the analytical results, it has been verified that the proposed equivalent model can provide accurate dynamic responses of building structures connected by a sky-bridge with significantly reduced computational efforts.