Numerical study of particle dispersion from a power plant chimney

심정보,유동현,Shim, Jeongbo,You, Donghyun Korean Association for Particle and Aerosol Resear 2017 Particle and Aerosol Research Vol.13 No.4

An Eulerian-Lagrangin approach is used to compute particle dispersion from a power plant chimney. For air flow, three-dimensional incompressible filtered Navier-Stokes equations are solved with a subgrid-scale model by integrating the Newton's equation, while the dispersed phase is solved in a Lagrangian framework. The velocity ratios between crossflow and a jet of 0.455 and 0.727 are considered. Flow fields and particle distribution of both cases are evaluated and compared. When the velocity ratio is 0.455, it demonstrates a Kelvin-Helmholtz vortex structure above the chimney caused by the interaction between crossflow and a jet, whereas the other case shows flow structures at the top of the chimney collapsed by fast crossflow. Also, complex wake structures cause different particle distributions behind the chimney. The case with the velocity ratio of 0.727 demonstrates strong particle concentration at the vortical region, whereas the case with the velocity ratio of 0.455 shows more dispersive particle distribution. The simulation result shows similar tendency to the experimental result.

일본의 고등학교에 신설된 「지리총합」의 필수화 과정과 내용의 특성

심정보 ( Jeongbo Shim ),조철기 ( Chul-ki Cho ) 한국지리환경교육학회 2018 한국지리환경교육학회지 Vol.26 No.3

The purpose of this study is to analyze the designated process and the characteristics of a new compulsory subject “Chiri Sogo” (tentative name which means comprehensive geography), in Japanese high schools. In the Japanese high schools, the completion rate of geography was reduced dramatically due to “Gendai Syakai” (modern society) and “Sekaishi” (world history) being designated as mandatory at the end of the 1970s and in the late 1980s each. As a result, geographers have felt crisis since the mid and late 1990s. Since 2003, geographers have been involved in various activities such as promoting and studying the social importance of geography, centered on the Association of Japanese Geographers. Geography researchers also participated in the Science Council of Japan and made useful suggestions for reforming geography education. Finally, with the constant efforts of the geographers, “Chiri Sogo” was designated as a new compulsory subject in the high school curriculum in March 2018. This subject emphasizes the creation of a sustainable society from global and local perspectives. The key words of this subject are map, GIS, ESD, and disaster prevention. The instructional method of the subject is theme-oriented inquiry learning.

현대 초기 지리교과서에 반영된 일본의 이미지

심정보 ( Jeongbo Shim ) 한국지리환경교육학회 2021 한국지리환경교육학회지 Vol.29 No.1

The purpose of this study is to examine the perceptions and images of Japan in geography textbooks for elementary and secondary schools published after Korea’s independence from Japanese colonies. Japan described in the world geography textbooks for elementary and secondary schools in modern and contemporary Korea has both positive and negative images depending on the political situation. As a result of the study, it was revealed that the most negative images of Japan were found in geography textbooks in Korea at that time. These include the narrow insularism, the savage culture and belligerence, the expansion of territory and the war of aggression, and the invasion of the peace line surrounding Dokdo. In addition, they criticized Japan's aggression and described them as something to be wary of. As such, the description of negative content against Japan reflects the Koreans' anger against Japanese colonial rule immediately after independence. Also, the political conflict over sovereignty over Dokdo between Korea and Japan affected the descrption of geography textbooks.

사회과 지리 영역에서 지명교육의 현상과 필수지명의 선정

심정보 ( Jeong Bo Shim ) 한국지리환경교육학회 2007 한국지리환경교육학회지 Vol.15 No.2

This study examines the current status and problems of geographical names education and seeks ways to improve geographical names education in middle school social studies geography field. In South Korea, most geographical names are taught in the first year of middle school. However, according to the result of a questionnaire survey which asked third year middle school students about fundamental geographical names in Korea and the world, the score turned out to be surprisingly low. In order to solve this problem of geographical illiteracy, it is necessary to select minimum essential geographical names in geography education because it is basic and useful to know minimum essential geographical names in geography field and in this age of globalization and life-long learning. This paper suggests an example of minimum essential geographical names, based on their frequency of appearance in textbooks, social use and regional balance. However, the issue of selection and determination of minimum essential geographical names requires more discussion and further research from various perspectives.

일본의 사회과에서 독도에 관한 영토교육의 현황

심정보 ( Jeong Bo Shim ) 한국지리환경교육학회 2008 한국지리환경교육학회지 Vol.16 No.3

Since 2005 when Japan`s Shimane Prefecture established Takeshima Day, the political conflict between Korea and Japan has been deepening. In particular, in July 2008 when the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) first specified Takeshima in the teaching explanatory guidance (social studies), this move fueled a strong anti-Japanese sentiment among Koreans. Territory education in social studies in Japan is first conducted in a basic form beginning with the fifth school year in elementary school. Also, in middle school and high school, in the field of geography and citizenship, an intensive education on Dokdo is provided. Furthermore, research associations are formed in areas in the vicinity of the island, and supplementary textbooks are created, thus invigorating territory education on Dokdo. Japan`s territory education on Dokdo will be further reinforced from the long-term perspective.

번역 : 문부성과 조선총독부의 국민학교 국민과 지리에 특설된 「향토의 관찰」과 「환경의 관찰」의 비교 분석

심정보 ( Jeong Bo Shim ) 한국지리환경교육학회 2009 한국지리환경교육학회지 Vol.17 No.1

수처리 콘크리트 구조물의 부력편심모멘트 검토

심정보(Shim Jeong Bo) 대한토목학회 2008 대한토목학회 학술대회 Vol.2008 No.10

조선총독부 편찬 다나카 게이지의 초등지리서에 나타난 페스탈로치의 교육사상

심정보 ( Jeong Bo Shim ) 한국지리환경교육학회 2014 한국지리환경교육학회지 Vol.22 No.3

The purpose of this study is to explore the educational thought of Pestalozzi in elementary geography education of the Japanese colonial period. Tanaka Keiji applied Pestalozzi’s educational thought to the 『Elementary Geography Textbook』published by the Japanese Government-General of the Joseon of the early 1930’s. Many visual materials such as illustrations and maps were presented in the book. In addition, the content of Japanese geography was arranged from near to far and from northern to southern areas. The structure of the world geography was arranged from simple to complex and from southern to northern areas. It represents Tanaka Keiji’s careful consideration to help students to understand areas easily. However, these contents had not been included in the Japanese’s geography education until the late 1920’s in spite of his continuos argument. Finally, Tanaka’s idea was reflected to 『Elementary Geography Textbook』, written by him in the 1930’s, for public elementary school textbooks in colonial Joseon.

일본의 학습지도요령을 통해 본 중학교 사회과 지리의 동향

심정보 ( Jeong Bo Shim ) 한국지리환경교육학회 2013 한국지리환경교육학회지 Vol.21 No.2

This study aims to explore the current trend of Japanese middle geographic section in social studies curriculum. The findings of this study are as follows. First, the focuses of the middle social studies include the basic knowledge, concepts, acquisition of skills, language abilities of enhancing thinking, and respect for tradition and culture. Second, the main focuses of the geographic section are decision-making, expression, understanding of national land via dynamic geographic learning, enhancement of geographic skills, introduction of social participation perspectives, etc. Third, the features of contents present understandings of world and Japanese geography and introduce social participation perspectives in order to enhance civic consciousness. That aims to promote the independent life skills of Japanese with the approach of knowledge society.

근대 일본의 초등교원 양성 학교에서 페스탈로치 교수법의 도입과 지리교육

심정보 ( Jeongbo Shim ) 한국지리환경교육학회 2016 한국지리환경교육학회지 Vol.24 No.3

The purpose of the study is to examine the features by exploring the origin of Pestalozzi`s educational thought which was introduced to the geographic education of the modern Korea. Pestalozzi`s educational theory, as a western pedagogy, was first introduced in the modern Japan. The Japanese Ministry of Education in the 1870`s delegated three students to the college of education in the United States in order to investigate educational policies and institutions. Hideo Takamine among them studied teacher education, Pestalozzi`s thought, etc. in the Oswego College of Education in New York. After his return from abroad, he worked as principal of the Tokyo teacher institution. His student, Torasaburo Wakabayashi, put Pestalozzi`s teaching methods into practice. In 1883, Torasaburo Wakabayashi published 『Revised teaching methods(Kaihatsu Kyouju Jutsu)』 using Pestalozzi`s teaching methods by subject and 『Elementary Geography(Chiri Shougaku)』which is an innovative geographic textbook. He emphasized the use of intuition, observation, question and answer, and visual materials and maps.