• 한국환경복원기술학회지
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• 제23권6호
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• pp.151-166
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• 2020

Various experience keywords were derived through text mining analysis of two National Ecological and Cultural Exploration Routes. The results of this study were drawn as follows: The interaction between the experience keywords was analyzed by the degree centrality, closeness centrality, and betweenness centrality value calculated through the centrality analysis of the research site experience keywords. First, In the text mining analysis, 'walking' appeared as the top keyword in the I, II, and III periods of the two target areas. The keywords related to the stay type of "rental cottage" and "recreational forest" were derived for Masil Road in relation to accommodation facilities. However, the keywords related to the accommodation were not derived in Gubul Road. Second, as a result of the centrality analysis, the degree centrality of the keywords "walking", "sea", "look", "salt flats" of Masil Road and "walking", "lake" and "park" of Gubul Road was high. The keywords located at the center are "walking" and "sea" in the Masil Road, and "walking" in the Gubul Road. As an influential keyword, Masil Road is "experience" and Gubul Road is "history". Third, According to the results of the analysis, the keywords that appeared at the top of the Gubul Road are derived from the keywords related to the 1 ~ 8 course, and it is judged that the visitors are visiting the 1 ~ 8 course trail evenly. However, the Gubul Road only appears in the top keyword only for a few courses. Through this, it seems that three courses are intensively visited as the main course of 6 Gubul Road, 6-1 Gubul Road, and 8 Gubul Road.

• Journal of Forest and Environmental Science
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• 제28권1호
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• pp.12-18
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• 2012

Like any other natural resources, forest flora may experience the extreme threat of elevated temperature and saline water submergence at different stages of their lives i.e. from germination to maturity due to climate change effects. The overall aim of the study was to measure the effect of higher temperatures along with saline water irrigation on survival and initial growth during seedling stage of Artocarpus chapalasha. The experiment was conducted in temperature- humidity-photoperiod regulated plant growth chamber during stipulated period to measure the growth performance of randomly selected seedlings. Within three different elevated temperatures viz. $30^{\circ}C$, $32^{\circ}C$ and $34^{\circ}C$, the seedlings were given three different saline conditions such as 0.5 g/L, 1.5 g/L and 2.5 g/L NaCl concentrations. Results found from the experiment was that, seedlings of Artocarpus chaplasha reared at different temperatures and saline water treatments showed stunted growth than reared at existing outdoor temperature ($26.31^{\circ}C$) irrigated with regular fresh water. Seedling growth at three different parameters such as height, collar diameter and number of leaves showed that with increasing temperature individuals respond negatively to increasing saline condition. The seedling's growth occurred at every day in height, collar diameter and leaf. However, growth rate reduced later during the observation. The combined effect of high salinity and higher elevated temperature results in seedling mortality. Therefore, Artocarpus chaplasha may not thrive at higher temperature and salinity intrusion at its early growing period in plantation and natural forest areas.

• 환경영향평가
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• 제14권6호
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• pp.387-402
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• 2005

In this study, we tried to predict the change of future land-cover and relationships between land-cover change and geo-spatial information in the Gongju area by using fuzzy logic operation. Quantitative evaluation of prediction models was carried out using a prediction rate curve using. Based on the analysis of correlations between the geo-spatial information and land-cover change, the class with the highest correlation was extracted. Fuzzy operations were used to predict land-cover change and determine the land-cover prediction maps that were the most suitable. It was predicted that in urban areas, the urban expansion of old and new towns would occur centering on the Gem-river, and that urbanization of areas along the interchange and national roads would also expand. Among agricultural areas, areas adjacent to national roads connected to small tributaries of the Gem-river and neighboring areas would likely experience changes. Most of the forest areas are located in southeast and from this result we can guess why the wide chestnut-tree cultivation complex is located in these areas and the possibility of forest damage is very high. As a result of validation using the prediction rate curve, it was indicated that among fuzzy operators, the maximum fuzzy operator was the most suitable for analyzing land-cover change in urban and agricultural areas. Other fuzzy operators resulted in the similar prediction capabilities. However, in the prediction rate curve of integrated models for land-cover prediction in the forest areas, most fuzzy operators resulted in poorer prediction capabilities. Thus, it is necessary to apply new thematic maps or prediction models in connection with the effective prediction of changes in the forest areas.

• 한국산림과학회지
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• 제84권3호
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• pp.394-405
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• 1995

온대 삼림지대에서 산화 적지나 개벌 적지에 왕성하게 번성하는 것이 ericaceous속이다. ericaceous속의 식물들은 성장이 빨라서 다른 종과의 경쟁에서 유리하고 또한 allelopathy 효과 때문에 침엽수 갱신에 영향을 미친다. Kalmia가 번성하는 지역에서는 삼림 갱신이 잘 되지 않거나 조림한 침엽수의 생장이 저조하였다. 이러한 생상 저해 현상은 서유럽의 Calluna - Sitca spruce - Scots pine 생태계와 미국의 북서 태평양 지역의 Gaultheria - cedar/hemlock 생태계에서도 나타나고 있다. 삼림이 파괴된 다음에 Kalmia - black spruce 생태계의 다양한 변화는 침엽수 생장을 저해하거나 갱신을 방해하는 원인으로 생각되어지고 있다. 양분경쟁에 대한 논쟁의 여지는 있으나 Kalmia는 black spruce 생장을 억제하는 주원인으로 작용한다. 여러 곳의 야외, 실내 및 온실에서 한 실험 결과는 이러한 결론을 뒷받침해 주고 있다. 본 논문에서는 Kalmia 잎으로부터 8가지의 폐놀물질을 분리동정해 냈으며 이들 중 4가지는 black spruce에 고도의 독성을 나타냈다. Kalmia 우점지역에서 allelopathic 영향을 적게 하므로써 black spruce의 갱신을 증진시키기 위한 여러 가지 방법에 대한 고찰을 하였다.

• 한국조경학회지
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• 제34권1호
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• pp.107-119
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• 2006

The Korea Water Resources Corporation(KOWACO) proposed bidding for an alternative design for Hwabuk Multi-purpose Dam in March of 2004. The site is located in Hakseong-ri, Goro-myeon, Gunwi-gun, Gyeongsangbuk-do and has adrainage area of $87.52km^2$. The purpose of this project is to establish an environmentally friendly plan for minimizing the damage that was caused by the construction of the Hwabuk Multi-purpose Dam. The design principle of KOWACO was the restoration of the natural environment, a harmonious landscape, and the creation of a space of regional and local culture. The basic concept of this project involves an ecological-restoration axis and a functional-connection axis. The site is divided into four spaces: (1) the space of memory and symbol, (2) the space of nature and ecology, (3) the space of regional and local culture, and (4) the space of the regional economy. There are four sub-spaces in the space of memory and symbol: the track forest, the time forest, the memory room, and the sun plaza. There are three sub-spaces in the space of nature and ecology: the habitat of aquatic birds, the wind forest, and the eco-corridor. There are five themed parks in the space of regional and local culture: the culture and relic room, the wildflower garden, the ecological pond, the insect observation park, and the pyogo maze. There are three areas in the space of the regional economy: the forest pension, the waterside pension, and the community center, as Dungdungi village was reorganized to serve as a lodging complex. These themed parks, working together, can offer an effective space for nature, culture, rest, and experience.

• Archives of Plastic Surgery
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• 제48권1호
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• pp.107-113
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• 2021

Background Applicants to integrated plastic and reconstructive surgery (PRS) residency in the United States spend exorbitant amounts of time and money throughout the interview process. Outside of first-hand experience through a visiting rotation, applicants utilize various resources in learning about a program. Today's applicants are "Millennials," the demographic cohort raised during the information age and proficient with digital technology. The authors evaluated whether programs have a presence on social media, and whether applicants are following these accounts. Methods An online survey was sent to applicants to a single integrated plastic surgery program evaluating basic demographics, social media utilization, and sources of information accessed throughout the residency application process. A manual search of popular social media platforms (Instagram, Facebook, and Twitter) was performed in October 2019. Accounts affiliated with integrated PRS programs were identified and analyzed. Results Eighty-four of 222 applicants (37.8%) completed the survey. Ninety-six percent of applicants were within the Millennial demographic. Ninety-six percent of applicants had some form of social media presence, with Facebook (90%) and Instagram (87%) being the most popular platforms. Seventy-three percent of applicants reported following a PRS residency social media account. As of October 2019, 59 integrated residency programs (73%) have active Instagram accounts. Conclusions Applicants still rely on the program website when researching potential residencies, but social media is being rapidly adopted by programs. Program social media accounts should be used as a dynamic form of communication to better inform applicants of program strengths and weaknesses.

• 한국산림과학회지
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• 제100권3호
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• pp.334-343
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• 2011

자연경관보전과 함께 휴양기능에 중점을 둔 독일의 자연휴양림(Naturpark)은 오랜 역사를 가진 성공적인 휴양공간이다. 본 연구에서는 지정배경과 성격, 현황, 휴양이용행태 등을 조사함으로써, 우리와 다른 휴양특성을 밝히고 이를 통해 우리나라의 휴양계획에서 고려하고 개선해야 할 점들을 찾고자 수행하였다. 91개 독일의 자연휴양림과 97개 한국의 자연휴양림을 연구대상으로 하였으며, 연구결과 독일의 자연휴양림은 다양하고 전문화된 휴양활동과 숲 교육프로그램을 제공하고 있음을 알 수 있었다. 이는 휴양이용객들의 구체적이고 다양한 휴양요구를 반증하는 것으로 이용객들의 많은 자연체험, 휴양체험으로 풀이될 수 있다. 지역사회에 기반을 둔 운영체제와 잘 개설된 다목적 임도는 독일 숲휴양활동의 중요한 근간으로 규명되었으며, 이는 휴양계획 수립시 반드시 고려할 점으로 사료된다.

• 한국융합학회논문지
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• 제13권4호
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• pp.451-460
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• 2022

본 연구는 서울시에 거주하는 중장년층의 도시숲 이용특성에 따른 긍정심리와 시민의식의 차이를 분석하기 위해 수행되었다. 연구목적을 달성하기 위해, 중장년층 성인 156명을 편의표집하였고, 수집된 자료는 SPSS 25.0 프로그램을 이용하여 기술통계, 집단별 차이검증, Schéffe 사후검증을 실시하였다. 주요 연구결과는 다음과 같다. 첫째, 회복탄력성과 낙관성 및 시민의식의 성별 차이는 유의하였으나 연령별 차이는 유의하지 않았다. 둘째, 도시숲 이용행태에 따라 자기효능감, 회복탄력성, 낙관성과 긍정심리 전체, 그리고 시민의식에 차이가 나타났다. 평균수명이 증가함에 따라 중장년층 인구에 대한 사회적, 정책적 지원이 필요한 만큼, 시민들의 심리사회적 건강 증진을 위해 도시숲 체험의 기회와 방법의 다양성을 적극적으로 모색해야 할 것이다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2022년도 춘계학술대회
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• pp.106-107
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• 2022

주변선박에 대한 선종 식별은 선박의 향후 이동 경로와 조종 특성을 유추할 수 있으므로 항해사와 VTS 관제사에게 모두 중요한 정보이다. 그러나 AIS메시지 전송 중 통신 문제, 항해사의 AIS 이용 미숙지로 인해 선박의 선종 확인이 불가능한 경우가 빈번하다. 따라서 이 연구는 AIS데이터를 학습 및 테스트 데이터셋으로 분할, 무작위의 숲 분류기(Random Forest Classifier)에 AIS데이터의 선박 특성(feature)과 선종을 훈련 및 예측하는 방법을 제시한다. 연구를 위해 2018년 한해 울산 앞바다 AIS데이터를 이용하였다. 이 방법을 사용하면 다수의 항해사 또는 VTS 관제사가 토론을 통해 선종예측 경험을 공유하는 것과 같은 기능을 할 수 있다.

• 농촌계획
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• 제21권2호
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• pp.189-199
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• 2015

This study made use of 9 types of utilizing idle farmland deducted from existing research in order to examine cases by type of idle farmland, and selected representative cases by type after analyzing contents of 165 available newspaper articles. Selected Cases were assorted into agricultural use and nonagricultural use, and agricultural use are as followed. (1)Community Service/Farming type is the case of Gimhae city reported on 'Busan Ilbo', (2)High Income/Farming type is the case of cooperative unit of Geumjeong crude drug in Yeongam appeared in 'Newsis', and the case of Omija industry in Mungyeong reported on 'Hankyoreh', (3)Tourism/Landscape/Farming type is the case of rape flowers and buckwheat flowers in Gupo village reported on 'Asia News Agency', (4)Stock Raising/Farming type is the case of growing foraging crops published in 'The Daejeon Ilbo', (5)Weekend farm type is the case of utilizing idle farmlands and creating weekend farm reported on 'Mediawatch', (6)High income/Forest type is creating Mulberry cultivation areas in Hamyang-Gun published in 'Yonhap News', (7)Ecology/Landscape/Forest type is forestation project of idle land reported on 'Newsis', (8)Agricultural Experience Study type is the case of managing agricultural experience study center in Dosun elementary center published in 'Sisajeju' and the case of non-agricultural application case, (9)Ecological Environment type is the case of wetland restoration of idle farmland in Gochang. This study investigated and arranged detailed contents by the literature search and interview investigation according to investigating items such as utilizing area, main agent, purpose, utilizing item, utilizing content, etc. by case. With that, it deducted implications as well as case characteristics, and finally suggested political proposals through the case analysis.