• 한국환경과학회지
• /
• 제19권4호
• /
• pp.459-481
• /
• 2010

This study was carried out to investigate the vascular flora of Mt. Munsu. The vascular plants collected in 13 times(from Mar. to Oct. 2009) were identified as 511 taxa in total, including 113 families, 332 genera, 445 species, 5 subspecies, 46 varieties, 5 forms. Among them, 6 taxa of the Korea Forest Service-designated rare & endangered plants and the Korean endemic plants were identified as 2 taxa. Based on the list of approved for delivering overseas of plants, 6 taxa were recorded in the investigated area. The Ministry of Environment-designated plants, which should be protected by the wildlife protection law, were identified as 2 taxa and 39 taxa of specially designated plants by the Ministry of Environment. The naturalized plants were identified as 53 taxa, and their naturalization ratio and urban index were found to be 10,3%, and 18.5% respectively. There existed many kinds of plants resources having conservational value like Ranunculus trichophyllus var. kadzusensis, Jeffersonia dubia etc, in this area, but there remains a fear of nature destruction's acceleration due to indiscriminate human development and access of a lot of visitors, so it is judged that there should be a management plan, such as a limit on the number of visitors or rest-year-system for restoration of nature.

• 한국조경학회지
• /
• 제33권3호
• /
• pp.18-30
• /
• 2005

Since the 1990s, with the beginning of local autonomy, most Korean cities have tried to establish and reinforce their own identity. The Law on the Planning and the Use of National Land, which took effect in January 2003, requires major and minor cities to manage and develop a city image and a marketing strategy to reflect their current condition. However, many cities continue to experience confusion in implementing urban landscape planning because no efficient and systematic method has been provided for the analysis of a city's image. The absence of systematic analysis methods makes it difficult not only to assess the current condition of a city accurately but also to choose an appropriate policy for the given city. Consequently, many cities suffer excessive trials and errors in implementing the correct policies for their city. The purpose of this study was to analyze the image: of Kongju, which has many historical properties. For this purpose, adjective questionnaires and multi-dimensional scaling (MDS) were made use of in order to assess the city image. The results of this study can be summarized as follows: 1. There are five properties that serve as landmarts lie symbolize Kongju: Muryeong royal tomb, Castle Kong, Mt. Gyeoiryong, Forest Museum, and Kongju National Museum. 2. Based on the citizen survey regarding the city type, Kongju is seen as a historical and an educational city. 3. Based on the image positioning (image spatial plot), Kongju is described as an old and familiar city. There we, however, no landmarks which are in accord with the image of Kongju. It is difficult to establish and reinforce the image of a city with a single element like a landmark However, with steady follow-up research, this study may serve as a systematic and logical model to improve the urban landscape and image.

• 농촌계획
• /
• 제26권1호
• /
• pp.123-136
• /
• 2020

The paradigm of rural development projects has shifted and expanded from agricultural production based on the way of improving the residential environments in order to achieve the quality of life staying in rural areas. The purpose of this study is to evaluate policy directions of rural development projects by investigating government projects conducted successively starting from the Participatory Government of President Roh in 2003 and to the present Government of President Moon. In consideration of administrative affairs, the projects include the Balanced National Development Project, Quality of Life Improvement and Regional Development for Rural Villages Projects. The study examined changes in visions and key agendas proposed in national affairs as well as those in the visions and strategies exhibited by local development project plans through various governments. The core contents examined are the project characteristics, transformation process through government changes, and the law of status pertaining to rural development projects. The direction of implementation for the rural development projects implemented by each government provide an opportunity of understanding the transformation process in each project that has been still effective currently. This study is expected to provide a basic set of data to be used for a proposal for new rural development projects while still being useful to be referred or integrated to other national and regional projects.

• 한국응용곤충학회지
• /
• 제30권1호
• /
• pp.86-93
• /
• 1991

솔껍질깍지벌레 성충의 탈피(우화 : eclosin) 및 우화후의 탈출 (emergence)습성이 실내조건에서 조사되었다. 수컷성충의 탈피는 일종 특정한 시간에 국한되지 않으며 갓 탈히한 성충은 실온에서 정지성충(pre-emergence adult)으로 0.5~2.5일 경화후 고치로부터 탈출하였다. 대부분의 수컷성충은 일조후 1시간 이내에 탈출하였으며 이러한 탈출현상은 광도가 높은 경우 더욱 빨리 진행되었다. 암텃성충은 우화후 곧 탈피장소에서 이동하며 대부분 일조후 3시간이내에 우화하였다. 수컷이 우화후 고치속에 일정기간 정치하여 있는 것은 갓 우화한 성충의 생리적 성숙을 돕고 또한 번식활동을 일중 특정한 시간에 하기 위한 것으로 풀이된다.

• 한국환경생태학회지
• /
• 제29권1호
• /
• pp.21-28
• /
• 2015

This study examined the habitat status of wild birds at closed-trails and the control group of opened-trails in the national park of the Baekdudaegan mountains. After evaluating each area based on this, it's aimed at being utilized as basic data for future national park management and opening of trails. Upon field investigations and analyzing existing literary materials, it was found that there were a total of 76 bird species living around the trails. Among them, it was confirmed that 60 species can breeding and 10 species are protected by law. Upon assessing the scores of each area according to the evaluation standards of this study, Area I had 7 scores, area II had 13 scores, area III had 5 scores, and area IV had 16 scores, showing that the control group open-trail area IV between Jeongryeongchi and Seongsamjae had the highest score, and that area III of Wolyeongdae~Chotdaebong~Daeyasan~Miljae~Wolyeongdae had the lowest score. Evaluation of closed-trail according to wild bird species (Avifauna) was attempted in this study, but there were more bird species living in open-trails, while also having higher evaluation scores. Therefore, if opening trail is needed in the future due to excessive desires of visitors or inevitable social demands, it is judged that various environmental factors including mammals highly affected by people should be evaluated to open up the sector with the lowest score. Also, it is judged that through methods such as reservation systems, the number of visitors should be controlled or night-time hikes should be prohibited so that nocturnal wildlife can freely use the trails.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2007년도 추계학술대회 논문집
• /
• pp.307-308
• /
• 2007

This work shows the experimental results obtained from ageing at a temperature of 100 C for 48, 70 and 312 h, although the application of AC electrical tension in samples and the measuring of current leakage are presented. The measurements in samples were carried out with samples prepared from the deformulated commercial materials and respectively reformulated into thin films. The obtained results showed the mechanisms of conduction of samples in low and high electric fields. It was also identified an electric tension transition showing that in low fields it prevails the Ohm's law conduction, and in high electric fields it prevails the conduction of space charge limited current (SCLC). These results can support the natural rubber formulation process having as their main objective the reducing of the mechanisms that occur under high conduction current in high electric fields, which leads the material to a dielectric breakdown. Raw Natural rubber in Brazil is extracted from rubber trees (Hevea brasiliensis) in farms in So Paulo State by using some new plantation technology in smaller spaces, with trees placed a few meters from each other. In the Amazon rain forest the rubber trees are found naturally and their spacing may be of hundreds of meters or even kilometers between them. It is necessary to research this raw material from different internationally standard clones to characterize dielectric and electric properties for industrial applications. Moreover, this natural material has a low commercial price when compared to the synthetic ones.

• 한국빅데이터학회지
• /
• 제3권2호
• /
• pp.11-18
• /
• 2018

본 연구는 빅데이터 품질 진단의 핵심 요소인 도메인 기반 품질 진단을 위한 도메인 자동 판별에 관한 연구다. 빅데이터의 가치와 활용도의 증가와 4차 산업혁명의 대두로, 법률, 의료, 금융 등 IT와 융합된 다양한 분야에서 빅데이터를 활용하여 새로운 가치를 창출하려는 노력을 진행중이다. 하지만, 신뢰도가 낮은 데이터에 기반한 분석은 과정과 결과 모두에서 치명적인 문제를 발생하며, 분석 결과에 따른 판단 또한 신뢰하기 어려워 진다. 이처럼 신뢰도가 높은 데이터의 필요성 또한 증가하였지만, 데이터의 품질 확보에 대한 연구와 그에 대한 결과는 미비하다. 본 연구는 데이터 품질 향상을 위한 진단 평가의 핵심적 요소인 도메인 기반 품질 진단에서, 수작업으로 진행되었던 도메인 판별 작업을 머신러닝을 이용하여 자동화 함으로써, 작업시간을 단축하는 것을 목표로 한다. 데이터 베이스에 저장된, 도메인이 판별되어 있는 데이터의 특성에 관한 정보들을 추출하여 변수화하고, 이를 머신러닝을 이용하여 도메인 판별을 자동화 한다. 이를 빅데이터 품질 진단에 활용하고, 품질 향상에 기여하도록 한다.

• 인간식물환경학회지
• /
• 제24권1호
• /
• pp.95-105
• /
• 2021

Background and objective: A biosphere reserve is a complex concept that combines the preservation of biodiversity and the sustainable development with the region, outstanding ecosystems with worth conserving in worldwide. The purpose of this study is to suggest the way of zoning that can perform the functions of conservation, development, and logistics support of biosphere reserves. Methods: To meet the purpose of this study, the designation criteria, restrictions, and permissions of the protected area specified in the law for domestic protected areas were reviewed to classify the functions of a biosphere reserve. Results: Through this classification, 10 domestic protected areas with high ecological protection value, such as the natural beauty of the ecosystem, biodiversity, and habitats for wild animals and plants were derived as the core areas of the biosphere reserves. Also, a total of 21 protected zones that can function as a buffer to protect the core of the natural ecosystem from indiscriminate development such as resource protection, recovery, pollution prevention, and improvement were derived as appropriate sites for a buffer. In the review process, issues such as different behavioral restrictions and ranges of permission due to the application of different laws were identified, if two or more protected areas exist within one of the protected areas, there is a protected area that does not meet the criteria for designating use zone, or where behavior restrictions do not meet the zoning criteria of biosphere reserve, under the laws of domestic protected areas. Conclusion: Although this study was not able to carefully review most of the laws on domestic protected areas that are linked to other laws, it was able to categorize appropriate domestic protected areas that can act as the core and buffer zones of biosphere reserves.

• 자원환경지질
• /
• 제57권2호
• /
• pp.119-128
• /
• 2024

호주, 캐나다 등에서는 우리나라와 달리 석재·골재를 광물자원 중의 하나로 취급한다. 이러한 이유로 지방의 주정부 단위에서 광물자원 및 지질정보를 취급하는 기관이 석재와 광물자원 관련 정보를 통합하여 제공하고 있다. 이들 국가에서 광물 및 석재·골재 자원과 관련하여 제공하는 정보는 인터랙티브 맵, 지질도, 탐사 데이터 셋, 3차원 지질모델, 광업권리, 광산 및 광산관련 보고서 또는 요약자료 등으로 지방정부 및 지질조사기관의 웹을 통해 이루어지고 있다. 반면 한국의 경우 국내 법률에 따라 석재·골재는 광물자원과 분리되어 별도로 관리되며, 이에 따라 관련 정보도 한국광해광업공단, 국토교통부, 산림청, 한국지질자원연구원 등 여러 기관으로 분산되어 관리되고 있으며, 통합된 정보를 제공하고 있지 못한 상황이다. 따라서 석재·골재 자원의 확보와 효과적 활용을 위한 종합정보관리체제의 구축을 위한 거버넌스 개편과 정보체계화 구축을 위한 정책 및 제도 개발이 필요한 상황이다.

• 한국산림과학회지
• /
• 제78권4호
• /
• pp.345-359
• /
• 1989

경북북부(慶北北部)와 남부지방(南部地方)소나무는 외부형태적(外部形態的)으로 차이(差異)가 있으므로 소나무 16개집단(個集團)과 곰솔 5개집단(個集團)의 동위효소(同位酵素) IDH, ME, PGI, ADH, GOT 및 LAP에 의한 종자(種子)의 megagametophyte tissue로 집단간(集團間)의 변이(變異)를 조사(調査)하였다.1. 6개(個)의 동위효소(同位酵素)에서 소나무는 13개(個)의 유전자좌중(遺傳子座中) 변이(變異)가 있는 8개(個) 유전자좌(遺傳子座)에서 24개(個)의 대립유전자(對立遺傳子) 변이(變異)가 있었고, 곰솔은 13개(個) 유전자좌중(遺傳子座中) 변이(變異)가 있는 6개(個) 유전자좌(遺傳子座)에서 18개(個)의 대립유전자(對立遺傳子)가 변이(變異)를 나타냈다. 2. 소나무의 유전자형(遺傳子型) 빈도(頻度)는 동위효소(同位酵素)에 따라 다소 차이(差異)는 있으나 대체로 Hardy-Weinberg의 평형법칙(平衡法則)을 따르고 있으며, 평형법칙(平衡法則)을 따르지 않는 일부집단(一部集團)은 fixation index 값이 높고 동형접합체(同型接合體)의 발생빈도(發生頻度)가 기대치(期待値)보다 높게 나타났다. 3. 소나무에서 상주(尙州), 영주(榮州) 및 봉화집단(奉化集團)을 제외(除外)하고 genetic distance에 의한 집단간(集團間)의 차이(差異)가 없었으나, 경북(慶北)의 북부지방(北部地方)과 태백산맥(太白山脈)의 소나무가 같은 group에 속하고 내륙지방(內l陸地方)인 성주(星州), 의성(義城) 및 금능(金陵)같은 group에 속하며, 경주(慶州)와 백암(白巖)은 각각(各各) 다른 group으로 구분(區分)되었다. 4. 외부형태적(外部形態的)으로 차이(差異)가 있는 경북(慶北) 북부지방(北部地方)과 남부지방(南都地方)의 소나무는 동위효소(同位酵素)에 의한 변이(變異)로서는 뚜렷한 차이점(差異點)을 찾아 볼 수가 없었다. 5. 소나무에서 한 개체당(個體當) 이형접합체(異型接合體)의 유전자좌(遺傳子座) 빈도(頻度)는 ME-A 및 ADH-B locus에서, 곰솔에서는 ADH-B, LAP-B 및 PGI-B에서 가장 높게 나타났으며, 그외(外) locus에서는 동형접합체(同型接合體)의 빈도(頻度)가 높게 나타났다.