• Korean Journal of Heritage: History & Science
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• v.52 no.1
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• pp.82-89
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• 2019

In this study observation records of the National Natural Environment Survey (2008-2012, 2014-2017) and the Korean Natural History Research Information System (KNHRIS) for the common kestrel (2013-2016) were consulted to determine the correlation of the distribution of kestrels in an area and the area's land use type. Distribution characteristics were studied based on data collected over the last 10 years (2008-2017). Findings show that the common kestrel is widely distributed between 4,407 sites registered in KNHRIS in the period of 2008-2012, 3,899 sites in 2014-2017, and 508 sites in 2013-2016. Relationship analysis was conducted for the altitude and urban planning factors of statistics based on a 2017 GIS check to determine the distribution characteristics. The birds' altitude was confirmed to range from 0 to 1,200 metersck but was most commonly observed at less than 100 meters. Above 200 meters, the rate of occurrence decreased rapidly. The rate of occurrence of the common kestrel was highest in Chungcheongnam-do province, followed by Gyeongsangbuk-do, Kyonggi-do, Jeollanam-do and Jeollabuk-do. As urban areas, green areas, commercial areas, and industrial areas the presence of swere positively correlated with the presence of kestrels, the rate of occurrence of the kestrel was higher in those regions. However, there was no significant relationship between the incidence of kestrels and housing construction or residential areas.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.1181-1185
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• 2009

Adaptive Nuero-Fuzzy Inference System(ANFIS) 모형은 인공신경망과 퍼지모형의 특징을 가지는 모형으로 자료간의 관계가 선형이 아닌 비선형관계를 가질 경우 매우 정확한 예측 모형을 구축할 수 있는 특징이 있다. 월강수량 예측이 관측된 기상자료들과 비선형 관계에 있다고 생각되어 ANFIS 모형을 이용하여 월강수량을 예측하였다. 본 연구의 대상 지점으로는 금강유역의 대전 지점으로 선정하였다. 금강유역은 우리나라의 한가운데 위치하여 평균적인 강수형태 및 특징을 보여 좋은 실험유역으로 생각되어 선정하였다. 금강유역의 기상청에서 운영하는 지상 유인관측소 중 비교적 금강유역을 대표하고 양질의 자료가 기록되어 있다고 판단되는 대전지점을 실험지점으로 생각되어 선정하였다. 기상청 대전 유인 관측소에는 총 39년치 기상 자료가 기록되어 있다. 기상청에서는 전국 주요 도시들을 대상으로 2003년부터 월간 예보를 하고 있다. 본 연구에서는 기상청 월간예보와 기상청 대전 유인관측소에서 관측된 5년 치 기상자료를 모델의 입력자료로 구성하였다. 적절한 입력변수 조합을 구성하기 위하여 반복해법을 적용하였다. 5년 치 자료 중 절반은 학습을 시키는데 사용하였고 나머지 절반을 이용하여 모형을 검증하였다. 여러 입력변수를 이용하여 모형의 학습시킨 결과 입력변수가 3개 일 경우 가장 높은 정확도를 보였다. 입력변수가 3개로 학습 시킨 ANFIS 모형과 기상청에서 제공하는 월간예보를 비교해본 결과 ANFIS 모형을 적용하여 월 강수량을 예측하는 것이 기상청에서 제공하는 월간예보보다 높은 정확도를 보이는 것을 확인할 수 있었다.

• Animal Systematics, Evolution and Diversity
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• v.11 no.3
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• pp.389-408
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• 1995

The complete larval development of Hemigrapsus penicillatus(De Haan, 1835) from hatching to first crab stage was obtained by culture in the laboratory. Under culture conditions with salinity 33.3% , temperature $25^{\circ}C$, and photophase 14/10 h light/dark, the megalopa and the first crab instar were attained in minimum of 18 and 29 days after hatching respectively. Five zoeal stages and a megalopal stage are described and illustrated in detail. Morphological characters of H. penicillatus larvae were compared with those of other members within the subfamily Varuninae. Morphological differences among H. penicillatus, H. sanguineus and H. sinensis in megalopal stage are tabulated.

• Animal Systematics, Evolution and Diversity
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• v.12 no.2
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• pp.91-99
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• 1996

The complete larval development of Philyra pisum De Hann, 1841 from hatching to the megalopal stage was obtained by culture in the laboratory. Two zoeal and one megalopal stages are described and illustrated . The frist zoea of the present species is very similar to those of other two Philyra species except for the reduced carapace spines. The first zoeae belonging to the subfamily Philyrinae can be divided into two groups based on the zoeal characteristics: the first group is composed of Arcania septemspinosa, A. undecimspinosa elongata, and Myra fugax, whereas the second group is composed of Philyra corallicola, P. syndactyla, and P. pisum.

• The Korean Journal of Zoology
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• v.38 no.4
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• pp.465-482
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• 1995

The 7 zoeal and 1 megalopal stages of Cha~bdi8 bimaculata (Miers, 1886) are descrihed and iflustrated in detail from larvae reared in lahoratory. Under isboratory conditions of 22$^{\circ}C$ temperature and 33.3~ salinity, the magalopa was attained in 32 days or more after hatching. The larval morphology of the first zoea of C. bimaculata are coincide with those of Charybdis species by hearing lateral spines on carapace, ~type antenna, A-type telson, 1,6 setae on the endoped of maxillule, and 6 setae on the endopod of maxilla. Morphological features of C. bimaculata larvae were compared to the previous descriptions of larvae of the other spedes helonging to the same genus.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.53-57
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• 2018

고도의 산업화에 따라 도시의 성장과 인구의 밀집으로 인하여 물의 수요가 증가하고 이에 따라 각종 오염원의 유입이 증가함에 따라서 적절한 수질 관리에 대한 필요성이 대두되고 있다. 그리고 산업이 다양화됨에 따라 배출되는 하 폐수의 특성도 다양해져 기존의 수질처리장은 효율적인 처리를 하는데 있어 많은 어려움이 발생되고 있다. 굴 패각은 하수처리의 담체로 이용할 경우 살수여상의 문제점 중 하나로 나타나는 막힘 현상을 다소 감소시킬 수 있고, 다공질체로서 표면적이 불규칙하고 비표면적이 크기 때문에 반응기내에 공기를 원활하게 공급할 수 있으며, 중금속 이온과 유기물에 대한 흡착 효율이 뛰어나 미생물이 쉽게 부착, 성장할 수 있는 장점을 가지고 있다. 천연광물질은 전 세계적으로 발견되어 활용된 역사가 짧지만, 그 특징은 산소결핍보충, 유해원소 흡착 성능, 반도체 작용, 인체 면역력 강화, 바이러스성 질병의 예방, 중금속 해독 등의 다양한 특징으로 환경호르몬 제고, 음이온 원적외선 발생으로 세포의 노화방지, 인체 노폐물 제거와 같은 특징을 지닌 매우 유용한 자원으로 확인되고 있으며, 수질정화 능력이 탁월한 것으로 보고 있다. 이에 본 연구는 어촌폐기물인 굴 패각과 수질정화에 탁월한 천연 광물질을 혼합하여 경제적이고, 효율성이 높은 다공성 수질개선 담체를 개발하고, 수목여과용 비점오염시설 장치에 적용하여 혼합 담체가 수처리 시설의 담체로서 사용이 가능한지, 수목여과용 비점오염시설 장치에 적용할 수 있는지 검토하고자 수행하였다. 이 연구는 2017년 중소기업청 기술개발사업에서 연구지원을 받아 연구되었습니다.

• Journal of the Korean Geographical Society
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• v.28 no.4
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• pp.321-355
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• 1993

This paper focuses on the geographical pattern of financial activities in the Korean urban system during 1975-1990, based on the assumption that financial activities can reveal control points in Korea's urban economy. In terms of spatial evolution of financial insitutions, different locational characteristics are revealed among different types of financial institutions, implying the role of urban hierarchy. Financial resources are highly concentrated in the capital region, Seoul and Kyonggi Province. Both centralization trends into the large metropolitan cities and relative declines of medium and small cities within the Korean urban system, have been experienced over the study period. Financial activities sustain relatively stable hierarchical structure in the urban hierarchy. Regarding the financial flows, dominant flow zones centered on major metropolitan cities are identified, clearly showing a prominant role of Seoul in financial flows in the entire urban system.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.6
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• pp.1439-1449
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• 2015

This study, based on the sociological crime theory, is to examine the relation between urban characteristics and the incidence of crime, helping establish effective crime prevention measures. For doing so, the study employs crime data from the Supreme Prosecutors' Office and socio-demographic data including the regional Statistical Yearbooks -both from 2005 to 2012- to build the study's panel data, and analyzes the panel model on the 16 subordinate districts in the city of Busan. To reduce the incidence of crime and prevent crimes from occurring based on the analysis results, first, prevention measures specific to each region by its attributes are needed rather than general ones; second, new institutional frameworks or policies are required for utilizing accurate crime data; third, interdisciplinary research in which various fields including urban engineering are associated to that of social science is necessary to further the study.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.75-83
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• 2007

Urbanized area has complex terrain with many flow paths. Almost stormwater is drained through pipe network because most area is impervious. And overland flow from the pipe network reform the surface flow. Therefore, it should be considered the drainage system and surface runoff both in urban inundation analysis. It is analyzed by using MIKE FLOOD integrated 1 dimension - 2 dimension model about Incheon Gyo urbanized watershed and compared with the results of 1 dimension model and 2 dimension model. At the result this approach linking of 2 dimension and 1 dimension pipe hydraulic model in MIKE FLOOD give accuracy that offers substantial improvement over earlier approach and more information about inundation such as water dapth, velocity or risk of flood, because it is possible to present storage of overland flow and topographical characteristic of area.

• Journal of Korean Society for Geospatial Information Science
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• v.4 no.1 s.6
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• pp.31-41
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• 1996

The analysis of environmental change followed by cultural development is useful for determining development plan hereafter. This study aimed for quantitative analysis about urban sprawl within 10 years, from 1984 to 1994, at Kwangju city, and to extract characteristics of change. For this purpose, we performed land cover classifications using Landsat TM data. And to evaluate influence of urbanization, we carried out surface temperature analysis using TM band 6 data. From the change analysis in land cover, it wa found that expansion of urban areas amounted to 3% and get accomplished by exploitation of farm land area, and that a rice paddy fields were changed to vinyl house areas considerably. In the regional aspect, development was concentrated on Kwangsan-ku which had been incorperated into Kwangju city in 1988. The results from temperature analysis showed that there was close correlation between surface temperature and land cover types, and that urbanization would influnce temperature to rise $0.3^{\circ}C$ in summer. As a results, we can prove that satellite data is very effective for environmental change analysis.