• 복식문화연구
• /
• 제25권6호
• /
• pp.741-756
• /
• 2017

The natural resources of Jeju are recognized as the new regional image of that clean island. Reflecting these trends, this study is initiated to develop a textile design with the motive of persimmon, a natural resource of Jeju, and to apply it to infant's and children's clothes. Its purpose is to highlight the image of persimmon, a traditional dye, as a regional signature for Jeju. Product development procedure included, understanding the use of persimmon for fashion products, analyzing Infants' and Children's designer collections over the last three seasons (focused on 2014S/S, 2015S/S, and 2016S/S), and surveying the Children's Clothes market for persimmon dyeing in Jeju. The conclusion was that, the natural resources of Jeju are highly valuable, and should be applied to textile design and apparel products for children. Utilizing Jeju persimmon was actively studied, but, the market for the Jeju persimmon natural - dyeing products is extremely limited. Moreover, the apparel products for infants and children represent old-fashioned styles, despite their higher prices. Therefore, using the formative characteristics of persimmon for each theme was suggested for development of patterns for textile design. Pattern designs were expressed using textured textile screen-printing, embroidery and $appliqu{\acute{e}}$ for infants' and children's clothes. In this study, a total of 10 items were prepared as apparel products for infants and children. All items were designed considering mix-and-match, potential, with each other or with regular mass-market products. These results are expected to contribute to highlighting the unique image of Jeju and to help promote fashion culture products.

• 한국환경과학회지
• /
• 제32권11호
• /
• pp.767-775
• /
• 2023

This study was conducted to lay the foundation for considering the qualitative aspects of environmental resources by calculating the weight of each environmental resource to calculate the total amount of environmental resources in Jeju. By comparing and analyzing the results of the expert survey conducted in 2011 and the results of the expert survey conducted in 2011 and 2022, changes in experts' perceptions and implications over time were derived. In addition, based on the results of the recent survey, the weight according to the relative importance was calculated to lay the foundation for calculating the total amount of environmental resources in Jeju. The results of this study are expected to provide basic data necessary for the successful institutionalization of the total environmental resource system by providing a scientific basis for the calculation of the total environmental resource. As a result of comparing the survey conducted in 2011 to the survey conducted in 2022 to establish a total environmental resource management plan in Jeju Special Self-Governing Province, there was a difference in the relative importance of the environmental resource category. Although the ranking between categories did not change, it was confirmed that the relative importance of the natural and local resource environment decreased and the relative importance of the living environment field increased significantly. Over time, the importance of plants and wildlife increased, the importance of landscapes and topographic geology decreased, the importance of wetlands and caves increased, and the importance of Gotjawal, natural monuments, and cultural history decreased. In the living environment category, the importance of water pollution increased significantly, and in the humanities and social environment category, the importance of population increased and the importance of industry decreased. It is judged that most changes in item importance are largely influenced by changes in the background of the times and overall perception. It was confirmed that the importance of plants, wildlife, wetlands, and caves with relatively high awareness and the importance of water pollution, which is emerging as a regional problem, have all increased significantly due to structural problems of population age.

• 한국환경과학회지
• /
• 제32권6호
• /
• pp.441-451
• /
• 2023

This study examines the changes in environmental resource perception and residential areas on Jeju Island. This study focuses on Jeju Island, which has prepared a legal framework for the total amount of environmental resources. The study identifies Jeju residents and non-provincial citizens, analyzes the differences between them, and suggests the future direction of the total amount system for environmental resources. This study aims to provide essential data necessary for successfully implementing the assigned environmental resources. This will contribute to sustainable growth and preserving valuable environmental resources in an era where environmental importance is increasing. The findings indicate that both Jeju residents and non-provincial citizens are satisfied with the current environmental resources on the island. However, when comparing past and current environmental resources, Jeju residents generally indicated lower satisfaction over time, whereas non-provincial citizens perceived an improvement over time. While overall satisfaction with the natural and local environment remains high, there is a notable increase in perception regarding the ecological value of plants, wildlife, wetlands, and Gotjawal areas compared to the past. These findings emphasize the importance of incorporating these high-priority components into the total environmental resource system for future consideration.

• 한국응용곤충학회지
• /
• 제58권4호
• /
• pp.299-303
• /
• 2019

본 연구는 감귤의 해충인 귤굴나방(Phyllocnistis citrella Stainton) 의 포식 기생자 천적의 종류와 기생률을 조사하기 위하여 수행하였다. 2013~2014 제주 감귤원에서 발견된 귤굴나방 포식 기생자 천적은 좀벌상과에 속한 총 7종을 발견되었다. 그 중 좀벌과에 속한 Sympiesis striatipes가 73%, Quadrastichus sp.가 22%로 우점하였다. 나머지 종은 Neochrysocharis sp., Ageniaspis sp., Pnigalio sp., Holcopelte sp., Trichomalopsis sp. (Pteromalidae) 등이었다. 천적의 평균 기생률은 관행방제 과원에서 10.7%, 무농약 과원에서는 32.2% 이었다.

• 농촌계획
• /
• 제12권3호
• /
• pp.57-65
• /
• 2006

Stonewall in Jeju has been regarded as the one of the most esthetic landscape in rural regions. In addition, they have been played as a useful facility to protect houses or crops from strong winds, but also to indicate the boundary of ownership. In the recent research, stonewall has been appointed as the one of important components in rural landscape. Thus, stonewall in Jeju retains intrinsic and real value by many usages in rural regions. However, in spite of it's value, stonewall has been abandoned without any concerns and political measures. Now stonewall is urgently needed to be dealt by a certain political measure for protection. Therefore, the depth of concerns and systematic management measures for protection should be discussed and made, otherwise the destruction of these natural valuable structures will be continued. In this sense, the purpose of this paper, first of all, is to examine the status of stonewall in jeju. And then, with the result of this examination, political measures and suggestions to protect stonewall are proposed. Several areas such as Sungsan, Sinchon, and so on in Jeju are selected as the sample areas for this study, and examination are carried with a wide range of literature reviews and the GIS technology for data collection and analyses.

• 동력기계공학회지
• /
• 제19권4호
• /
• pp.76-81
• /
• 2015

The production of electricity from wind energy is noticed as economic power generation system in the natural resource. Lately, since lots of wind turbine have installed globally, the accidents have increased gradually. In this paper, we classified domestic information for 10 years, information of new energy and industrial technology development organization(NEDO) for 4years and caithness windfarms information forum(CWIF) for 15 years according to part and cause of wind turbine accident. We found that the main causes of accidents are storm, lightening and carelessness. The results of classifying and analyzing the informations, should be used to take measures on the accident prevention of wind turbine.

• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2019년도 학술발표회
• /
• pp.218-218
• /
• 2019

Jeju island has an area of $1,810km^2$ and is considered the largest island in South Korea. In Jeju Island the average annual precipitation is 1,957mm. About 54% of precipitation is estimated to be lost due to evapo-transpiration and direct runoff, and the remainder is recharged. Historically springs and puddles were the island's primary sources of water. However, after 1970 all sectors, including the urban and industrial sectors depended solely on groundwater as their water resource. As vast amount of water is being recharged the Island has many springs, especially near the coastlines. Historlcally, spring of Jeju Island formed village and make it possible to continue a life. Also it produces many values such as the spring related story, culture, tourism and ecosystems. Especially, the naturally rare phenomenon that about 900 springs appear over the whole area of Jeju Island makes it possible to call it as a natural heritage. As a result of this most springs have either been destroyed or been in the state of neglect. In some cases it has been observed that springs were preserved by nature, however majority of the cases saw springs losing their own nature as a result of abandonment. It was recorded that there were 911 springs in Jeju Island with most of them being distributed along the coast, which consequently increases their susceptibility to seawater intrusion. The objective of this study is therefore to analyze Eco-cultural and Engineering characteristics about springs in the island, highlighting its past utilization and reestablishing its potential as a source of spring.

• 대한화장품학회지
• /
• 제46권4호
• /
• pp.339-348
• /
• 2020

본 연구는 섬모시풀 70% 에탄올 추출물과 분획물에 대한 천연 화장품 소재의 가능성에 대해 조사하였다. 섬모시풀을 70% 에탄올 추출물과 헥산, 디클로로메탄, 에틸아세테이트, 부탄올 등의 순차적으로 용매별 분획을 제작하였다. DPPH과 ABTS 시험결과, 에틸아세테이트 분획물은 우수한 라디칼 소거 활성을 보였다. 항균활성은 Staphylococcus aureus, Staphylococcus epidermidis, Cutibacterium acnes와 항생제내성균주에 대해서 paper disc 방법, 최소저해농도 및 생육억제율을 조사하였다. 그 결과, S. aureus, S. epidermidis, C. acnes 균주에 디클로로메탄과 에틸아세테이트 분획물에서 추출물과 다른 분획물에 비해 우수한 항균력을 확인하였다. 또한, 에틸아세테이트 분획물은 lipopolysaccharide (LPS) 처리한 RAW 264.7 Cell에서 NO 생성 억제 활성을 확인하였다. 이로써 섬모시풀 추출물과 분획물은 세포독성이 없으며, 항산화, 항균 및 항염 효과를 보였다. 이 결과는 섬모시풀 추출물과 분획물이 항산화 활성을 가지는 효과적인 화장품 소재로 적용 가능하다는 것을 시사한다.

• 농촌계획
• /
• 제27권3호
• /
• pp.57-68
• /
• 2021

The purpose of this study was to examine the area of Woljeong-ri, Jeju, as a target site in order to derive the landscape features of Jeju Batdam, designated as an agricultural heritage. The summary of the research results is as follows. First, the Batdam of Woljeong-ri is closely related to the local natural envrionment, forming a unique landscape pattern in terms of shape and scale. Second, the site where drainage management is important due to its geological characteristics has a water resource management Batdam landscape for effective drainage management. Third, the farmers in Woljeong-ri, who have been engaged in agricultural activities for a long time, have implemented a utilization system that considers different land conditions. As a result, the landscape of Batdam in Woljeong-ri, Jeju, shows the characteristics of the landscape that is constantly evolving.

• 농업과학연구
• /
• 제45권3호
• /
• pp.499-508
• /
• 2018

To use mountain ginseng adventitious roots (MGAR), which is superior in functionality compared to ginseng, and to mass produce raw materials as a functional cosmetic material, the antioxidant and cosmeceutical activities of the extracts of MGAR at different ethanol concentrations (0, 20, 40, 60 and 80%) were compared and analyzed. At first, different ethanol concentrations were compared to determine the best solvent for the extraction of phenolic compounds from MGAR. An 80% ethanol extract with 10.07 mg of gallic acid equivalents/g sample and 0.94 mg of quercetin equivalents/g sample was the best solvent in the extraction of phenolic compounds. However, the 60% ethanol extract had the highest antioxidant activity, evident by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, Trolox equivalent antioxidant capacity (35.01 mM Trolox/g sample) and ferric reducing antioxidant power (460.94 mM $FeSO_4/g$ sample). However, the inhibitory activities of the 80% ethanol extract from the MGAR against tyrosinase and elastase were higher than those of the other extracts. The results of this study show that the extract of MGAR can be used as an easily accessible source of natural antioxidant and as a possible cosmetic ingredient in the cosmeceutical industry. However, the components responsible for the antioxidant and cosmeceutical activities of the MGAR extracts are currently unclear. Therefore, it is suggested that further studies should be carried out to isolate and identify the antioxidant and cosmeceutical components in MGAR.