• Journal of Wetlands Research
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• v.11 no.2
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• pp.1-7
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• 2009

In order to select the water flooding-tolerant trees among Korean oaks, we cultivated the sapling of 6 deciduous oak species, Quercus acutissima, Q. mongolica, Q. variabilis, Q. dentata, Q. aliena and Q. serrata, under the water flooding treatment and the control, and analysed the growth difference among them. For comparing the growth between treatment and control, we measured 13 morphological and ecological traits, such as leaf Leaf number, leaf length, leaf width, leaf area, shoot length, stem length, stem diameter, root length, plant length, leaf weight, stem weight, root weight, plant weight. Q. serrata have no growth difference between water flooding treatment and control, but the rest 5 species showed the growth reduction in water flooding treatment. Tolerance of oak species to water flooding was risen in order of Quercus acutissima, Q. mongolica, Q. variabilis, Q. dentata, Q. aliena and Q. serrata. Thus, among Korean deciduous oaks, it is desirable to plant Q. serrata for flood plain restoration of river.

• Korean Journal of Plant Taxonomy
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• v.36 no.4
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• pp.263-277
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• 2006

Anemone pendulisepala, recently described as a new species, is distributed in sympatry with A. reflexa, A. amurensis, and A. raddeana at Mt. taebeark and Mt. Baekdu. Anemone pendulisepala was previously proposed to be a hybrid species between A. reflexa and A. amurensis becaue it displavs overlapping features with them in involucre shape, petiole length, sepal apex and xylem shape, To verify the taxonomic status and to examine the hybridity of A. pendulisepala, sequences of ITS region of nuclear ribosomal DNA and the psba-trnH, rps16 and trnLF region of cpDNA from 36 accessions of 5 taxa including outgroup were analyzed. In maximum parsimony tree based on ITS sequences, A. pendulisepala had the same sequences of A. reflexa and was clustered with monophyletic A. amurensis, and then A. raddeana. Anemone pendulisepala was distinguished from the other taxa by having four base insertion in rps16 region, two species-specific bases and insertion in trnLF region. In the phylogenetic trees of combined cpDNA, A. pendulisepala showed monophyly with the bootstrap 100%. Anemone pendulisepala exhibited no polymorphism and shared no sequences with putative parental or related taxa examined in this study. Molecular data suggest that A. pendulisepala should be a distinct species, and no evidence of the hybridization was detectcd.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.1
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• pp.21-40
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• 2023

This study analyzed the cold air characteristics of the Nakdong Jeongmaek, which is advantageous for the formation of cold air that can flow into the city, in order to suggest the wind ventilation corridor plans, which have recently been increasing interest as a way to improve the urban thermal environment. In addition, based on the watershed analysis, specific cold-air watershed areas were established and management plans were suggested to expand the cold air function of the Nakdong Jeongmaek. As a result of the analysis of cold air in the Nakdong Jeongaek, cold air was strongly generated in the northern forest of the Jeongamek, and flowed into nearby cities along the valley topography. On average, the speed of cold air was high in cities located to the east of the Jeongmaek, while the height of cold air layer was high in cities located to the west. By synthesizing these cold air characteristics and watershed analysis results, the cold-air watershed area was classified into 8 zones, And the plans were proposed to preserve and strengthen the temperature reduction of the Jeongmaek by designating the zones as 'Conservation area of Cold-air', 'Management area of Cold-air', and 'Intensive management area of Cold-air'. In addition, in order to verify the temperature reduction of cold air, the effect of night temperature reduction effect was compared with the cold air analysis using weather observation data. As a result, the temperature reduction of cold air was confirmed because the night temperature reduction was large at the observation station with strong cold air characteristics. This study is expected to be used as basic data in establishing a systematic preservation and management plan to expand the cold air function of the Nakdong Jeongmaek.

• Journal of the Korean Association of Geographic Information Studies
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• v.25 no.2
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• pp.30-47
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• 2022

This study analyzed the characteristics of cold air flow according to spatial types in urban areas of Changwon-si, Gyeongsangnam-do. The spatial types were classified by cluster analysis considering the land use map, building information, and topographic characteristics produced on the Changwon biotope map. The amount of cold air and wind speed were derived by KLAM_21 modeling. As a result, spatial types were classified into a total of 14 types considering the density and height of buildings, land use types, and topographic characteristics. Cold air flow was found to generate cold air in the valley of the forest area outside urban area, move through roads and open spaces, and accumulate in the low-lying national industrial complex, and then spread cold air throughout the urban areas. There was a lot of cold air flow in the tall building area, and the cold air accumulation was less in the slope and ridge areas. The results of this study were able to understand the characteristics of cold air flow according to building density, land use type, and topography, which will be usefully used as basic data for urban wind road construction to mitigate climate and improve air quality in urban areas.

• Journal of Environmental Impact Assessment
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• v.24 no.2
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• pp.134-153
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• 2015

When making urban planning, it is important to understand climate effect caused by urban structural changes. Seoul city applies UPIS(Urban Plan Information System) which provides information on urban planning scenario. Technology for analyzing climate effect resulted from urban planning needs to developed by linking urban planning scenario provided by UPIS and climate analysis model, CAS(Climate Analysis Seoul). CAS develops for analyzing urban climate conditions to provide realistic information considering local air temperature and wind flows. Quantitative analyses conducted by CAS for the production, transportation, and stagnation of cold air, wind flow and thermal conditions by incorporating GIS analysis on land cover and elevation and meteorological analysis from MetPhoMod(Meteorology and atmospheric Photochemistry Meso-scale model). In order to reflect land cover and elevation of the latest information, CAS used to highly accurate raster data (1m) sourced from LiDAR survey and KOMPSAT-2(KOrea Multi-Purpose SATellite) satellite image(4m). For more realistic representation of land surface characteristic, DSM(Digital Surface Model) and DTM(Digital Terrain Model) data used as an input data for CFD(Computational Fluid Dynamics) model. Eight inflow directions considered to investigate the change of flow pattern, wind speed according to reconstruction and change of thermal environment by connecting green area formation. Also, MetPhoMod in CAS data used to consider realistic weather condition. The result show that wind corridors change due to reconstruction. As a whole surface temperature around target area decreases due to connecting green area formation. CFD model coupled with CAS is possible to evaluate the wind corridor and heat environment before/after reconstruction and connecting green area formation. In This study, analysis of climate impact before and after created the green area, which is part of 'Connecting green network across the north and south in Seoul' plan, one of the '2020 Seoul master plan'.

• Water for future
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• v.29 no.2
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• pp.191-198
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• 1996

Attempts were made to determine a proper length scale representing characteristics of icing geometry. It was difficult to determine a single length scale especially for glaze icings because of their shape complexity. However, use of icing length, which is defined as the length of icing normal to the wind, as a characteristic length is suggested rather than the cylinder or cable diameter.

• Explosives and Blasting
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• v.22 no.4
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• pp.1-6
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• 2004

In this study, dimension and scale factor of explosives were calculated. Proper dimension and scale factor were considered. Scale factor of 1/256 was obtained when scaled factor of the length was l/4. This value is similar to the ratio of explosives of model test and demolition structure. It seemed that scale factor of length should be larger than 1/4.

• KAPE Magazine
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• s.230
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• pp.4-6
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• 2015

어느덧 축산물품질평가원의 '매력적인 속살'. 10개 지원을 소개하겠다는 1년 장기 기획도 막바지에 다다르고 있다. 남은 지원의 수가 줄어듦에 따라 어디를 먼저 가야할지 소소한 고민이 더해진다. 이번 달은 부산경남지원이다. 세종시로 이전했으니 가볍게(?) 운전해서 다녀오자' 했다가 생각보다 먼 길에 피곤에 절은 상태로 취재를 시작했던 곳. 그럼에도 여러 지원을 취재하며 나름의 전문성을 쌓았다는 뿌듯함이 극에 달해 정신만은 '룰루랄라~'했던 지원이다. 그 이유로 이번 부산경남지원의 취재기를 풀어본다.

• Digital Contents
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• no.8 s.123
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• pp.72-75
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• 2003

과거 어린이들만의 전유물이자, 하층의 대중문화 장르로 인식되어 왔던 만화는 이제 더 이상 문화의 변두리 영역이 아니다. 현재 애니메이션은 문화 콘텐츠 산업의 허브이며, 진정한 고부가가치 산업으로 평가받고 있다.그러나 한국 창작 애니메이션의 갈 길은 아직도 미지수이다. 자체 매니아층이 생겨 재개봉에 들어가기도 했지만 기대를 불러왔던 '오세암'이 흥행에 실패해 조기 종영했고, 애니메이션의 블록버스터로 불리는 '원더풀데이즈'는 개봉 첫주 20만명의 관객을 동원하며, 바람을 일으켰지만 성공여부는 아직 더 두고봐야 할 것 같다.제 2의 부흥기를 맞이할 것이라는 기대와 달리 오세암과 원더풀데이즈 이후 다시 한번 과도기를 맞고 있는 한국 애니메이션 업계. 영화계의 '쉬리'와 같은 작품이 되겠다는 원더풀데이즈 제작사의 기대처럼 되살아날 수 있을지 점쳐본다.

• The Magazine for Energy Service Companies
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• s.61
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• pp.40-43
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• 2009

지난 9월 노동부와 한국산업인력공단은 '이달의 기능한국인'으로 (주)도암엔지니어링 오관준 대표를 선정했다. 1980년 방직공장의 보조 전기기사로 시작하여 전기분야에서 30여 년간 한 우물을 파며 자신의 기업을 제주도 최고의 전기종합업체로 키워낸 장본인이다. 오 대표는 자신의 30여 년 기능인으로서의 삶을 보람된 일도 많았지만 무엇보다 '고되고 힘들었다'고 표현했다. 기능한국인으로서의 기쁨보다는 그의 머릿속에는 오로지 사회전반으로 기능인을 활성화 시켜줬으면 하는 바람으로 꽉 들어차 있다.