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        검색결과 998

        1.
        2025.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 상록활엽수림이 존재하는 도서지역 중 제주도, 울릉도, 흑산도, 홍도, 완도 총 5개 도서를 대상으로 군집유 형을 분류하고 분류된 군집별 층위 구조와 환경 특성을 구명하고자 수행되었다. 야외조사는 2020년부터 2024년까지 식물사회학적 방법으로 총 143개의 조사구에서 식생조사를 진행하였으며, 조사된 자료는 클러스터 분석을 통해 군집유 형을 분류하였다. 그 결과, 후박나무군집, 종가시나무군집, 구실잣밤나무군집, 붉가시나무군집 총 4개의 군집유형으로 분류되었다. 분류된 군집의 중요치를 통한 층위 구조를 볼 때 모든 군집에서 현재의 구조가 당분간 유지될 것으로 판단되었으나, 아교목층과 관목층에서 후박나무, 까마귀쪽나무, 동백나무 등의 수종이 층위 경쟁을 하고 있어 상록활엽 수 임분의 천이과정을 이해하기 위해서는 경쟁 수종들의 장기 관찰이 필요할 것으로 판단되었다. 종다양도는 다른 군집에 비해 종가시나무군집에서 높게 나타났는데, 이는 종가시나무군집의 입지가 계곡성이기에 나타난 결과로 판단되 었다. 수관 계층에서는 종가시나무군집을 제외한 3개의 군집의 교목층 최저 수고가 낮게 나타났는데 이는 홍도, 흑산도 에 위치한 조사지의 입지가 해안가 급경사지에 위치하여 나타난 결과로 판단되었으며, 종가시나무군집은 수관 계층고 특징으로 인해 상대적으로 광 투과율이 높아 하층의 종다양도가 높게 나타난 것으로 판단되었다. 군집별로 해발고도, 방위, 위도 3가지의 환경인자가 통계적으로 유의미한 차이가 있었는데, 난온대지역의 상록활엽수림을 복원 또는 신규조 림 시에 해발고도, 방위, 위도를 고려하여 수종을 선택할 필요가 있다고 판단되었다.
        4,800원
        2.
        2025.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Damage to masonry walls can occur for various factors. It is often believed that heavy rains and increased rainfall cause soil and sand to flow into the stone masonry walls, leading to this damage. However, no research has definitively proven or analyzed this causal relationship.This study aims to evaluate the causes of damage to masonry walls due to severe rainfall and to propose preventive strategies to mitigate future risks. The assessment found that, as a form of cultural heritage, the stone masonry walls did not exhibit any structural or material issues that could compromise their stability. However, concerns were raised about potential problems arising from hydraulic pressure due to rising groundwater levels. Calculations and computer simulations confirmed that the risk of collapse increases with higher groundwater levels. Therefore, it is essential to carry out repairs and reinforcements to prevent a recurrence of this situation.
        4,000원
        4.
        2025.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The pioneering effort of Korea's distant water fisheries can be traced back to 1957 when Jinam-ho, affiliated with Jedong Industry Co., embarked on a tuna longline sea trial in the Indian Ocean. The success of this sea trial holds significant importance as it laid the groundwork for Korea to venture into the Pacific tuna fishing grounds, which were predominantly dominated by the United States and Japan at that time. The Korean distant water fisheries experienced remarkable growth in a short period, from the inception period in the 1950s, the pioneering period in the 1960s, the growth period in the 1970s, and the development period in the 1980s. However, a series of changes in the international situation, including the global oil crises of 1973 and 1978, the declaration of 200-nautical-mile zones by coastal states in 1977, and the adoption of the United Nations Convention on the Law of the Sea (UNCLOS) in 1982 and the United Nations Fish Stocks Agreement (UNFSA) in 1995, made a significant transformation in the Korean distant water fisheries inevitable. In particular, UNFSA grants the authority to conserve and manage fisheries resources to the Regional Fisheries Management Organizations (RFMOs), and stipulates that coastal states and fishing nations cooperate with each other through RFMOs. In order to reclaim the once vast fishing grounds and secure maritime territories, it is imperative to have both the keen attention of the fishing industries and the strategic support of the government. In addition, to secure competitiveness in the international community, we should faithfully fulfill the role as a responsible fishing nation and contribute to RFMOs by strengthening scientific activities.
        4,000원
        5.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study developed a model to predict employee turnover intention using data from the 2022 Korean Labor & Income Panel Study (KLIPS) with 2471 participants. CopulaGAN and Isolation Forests were employed for data augmentation and variable importance. A logistic regression model using the augmented data achieved an accuracy of 0.80, precision of 0.60, recall of 0.72, and an F1-score of 0.65. Key variables included Job Satisfaction, Wage Satisfaction, Work Hours, Job Stability, and Job-Related Training. The study highlights the potential of these techniques for enhancing turnover prediction and aiding proactive HR strategies.
        4,000원
        6.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study examines career trajectories among women with career breaks, using data from the 2019 National Survey of Women on Career Breaks (n=1,138). The data underwent preprocessing, including outlier detection, feature scaling, and class imbalance correction with SMOTEENN. Three machine learning models were evaluated, with the Random Forest model achieving the best performance. Key predictors included flexible leave policies, social insurance, remote work options, and job security. The findings highlight the importance of supportive organizational policies in retaining female employees. Future research should explore longitudinal impacts and additional variables like organizational culture.
        4,000원
        7.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was conducted to analyze New Zealand’s beekeeping industry and Manuka honey grading system to suggest characteristics and development plans for Korea’s honey grading system. Manuka honey in New Zealand is harvested from the Manuka tree (Leptospermum scoparium). It is known for its various bioactive properties, including antimicrobial activity and antioxidants. Since 2017, the New Zealand government has been implementing national certification and grading for all exported Manuka honey. For this purpose, compositions of Manuka honey across New Zealand have been investigated and four chemical indicators and one biological indicator have been established. Currently, Korea has been fully implementing a honey grading system since September 2023, which divides honey (acacia honey, chestnut honey, and miscellaneous honey) into 1+ grade, 1 grade, and 2 grade according to Enforcement Rules of the Livestock Act. The following seven indicators are used: carbon isotope consumption, moisture content, sugar ratio, hydroxytmethylfurfural, flavor, chromaticity, and defects, similar to Codex standards or European standards. However, details are modified to suit Korean conditions. To make the Korean honey grading system more stable, it is necessary to develop and introduce different indicators for honey functionality and honey grading system maturity. In addition, it is necessary to expand the participation of farmers in the honey grading system, secure consumer trust in the honey grading system, and continue to promote it.
        4,000원
        8.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The aim of this study was to evaluate the carbon storage capacity of broad-leaf forests in Republic of Korea through the analysis of studies related to carbon storage and carbon uptake, and to analyse the relationship between climatic factors affecting carbon storage capacity. We analysed the results of each previous study by summarising the research results of 55 previous studies collected through search, and organised the study area information and climate factors (elevation, average annual temperature, annual precipitation, etc.). And the carbon storage and net primary production of the above and below-ground and the whole plant were evaluated and the correlation with the climatic factors was statistically analysed. The analysis showed that the carbon storage of broad-leaved forests was positively correlated with altitude and negatively correlated with precipitation. These results mean that carbon accumulation in plants is more effective at higher altitudes with lower temperatures, and that broad-leaf forests are able to adapt and perform carbon storage functions in areas with low precipitation. Carbon uptake was negatively correlated with altitude and positively correlated with temperature. This means that the carbon absorption capacity of broad-leaved forests is greatly affected by temperature, and that the carbon absorption potential is greater in lowlands. Therefore, policies should be actively established to increase and preserve the carbon storage capacity of forests by considering the characteristics of the ecosystem functions of broadleaf forests and climate factors. The results of this study are expected to contribute to the understanding of the carbon cycle of broad-leaved forests and to the development of management measures, and to provide scientific data for carbon neutrality.
        4,000원
        9.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        이 연구의 목적은 우리나라 자립준비청년을 대상으로 한 정책의 현황 과 문제점을 파악하고 개선 방안을 논의하는 것이다. 자립준비청년은 원 가정에서 분리되어 국가의 보호를 받다가 성인이 되어 보호가 종료된 뒤 자립을 준비하고 실행하는 청년들을 말하며, 이들은 경제적, 교육적, 심 리적, 사회적으로 다양한 문제를 겪고 있다. 이들을 지원하기 위해 보건 복지부 중심의 자립지원정책이 2019년부터 본격화되었으나, 지금까지의 연구와 논의들은 자립지원정책을 통합적으로 살펴보지 못한 한계가 있 다. 본 연구는 정책자료와 학술자료를 바탕으로 자립지원정책의 현황과 문제를 종합적으로 분석했다. 분석 결과, 자립지원정책은 부처 간 지원 내용에서 차이가 있었고, 이는 자립준비청년 간 자립역량과 자립수준의 격차로 이어질 가능성을 확인했다. 특히, 현 정책은 청년이 된 이후의 지 원에 초점이 맞추어져 있고 청소년기부터 개인별 자립역량을 체계적으로 강화할 수 있는 로드맵이 부재했다. 이에 본 연구는 자립준비청년 지원 정책의 개선 방안으로, 자립지원 전달체계의 통합과 자립지원 방식의 다 각화를 제안하였다.
        9,200원
        10.
        2024.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aims to establish the concept of fish welfare and develop guidelines for its implementation in South Korean aquaculture. As global awareness of animal welfare grows, scientific evidence shows that fish are sentient beings capable of experiencing pain and that stress has led to increased demand for welfare standards in aquaculture. International organizations like WOAH and the EU have set welfare standards for farmed fish, emphasizing their importance for health, productivity, and food safety. However, in South Korea, fish welfare is still an emerging concept with limited research. This study systematically defines fish welfare, assesses its feasibility in domestic aquaculture, and proposes guidelines tailored to local conditions. The findings highlight the need for gradual implementation, considering the unique biological and environmental factors in fish farming.
        5,200원
        12.
        2024.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study integrates TabTransformer and CTGAN for predicting job satisfaction among South Korean college graduates. TabTransformer handles complex tabular data relationships with self-attention, while CTGAN generates high-quality synthetic samples. The combined approach achieves an accuracy of 0.85, precision of 0.83, recall of 0.82, F1-score of 0.82, and an AUC of 0.88. Cross-validation confirms the model's robustness and generalizability with a mean accuracy of 0.85 and a standard deviation of 0.008. The integration of TabTransformer and CTGAN enhances predictive accuracy and model generalizability, providing valuable insights for employment policy and research.
        4,300원
        15.
        2024.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        To analyse the relationship between above-ground carbon stocks, species diversity and broadleaved forests structural diversity of South Korean forests, we collected vegetation inventories from environmental impact assessment projects over the past 10 years. The available data were selected and organised including tree species, DBH and area each projects. The data was classified by forest type, aboveground carbon stocks were calculated and compared, and the correlation between aboveground carbon stocks and biodiversity and structural diversity was analysed. The results showed that above-ground carbon stocks were higher in mixed forests and broadleaved forests and lower in needleleaved forests, similar to previous studies. However aboveground carbon stocks of mixed forests were higher in natural forests than in plantations. Aboveground carbon stocks in broadleaved forests were higher in plantations than natural forests, and there was no statistical different of between natural and plantations in needleleaved forest. This could be the result of a variety influences including biological and environmental factors in the study area, and further research is needed to analyse the effects on carbon sequestration. Correlation analysis showed no correlation between biodiversity and above-ground carbon stocks, but a positive correlation between structural diversity and above-ground carbon stocks. This indicates that above-ground carbon stocks in forests are associated with unevenness diameters and the proportion and evenness of tree species by diameter. In addition, it has been analysed that the high succession stages in forest have higher species diversity and structural diversity, and greater efficiency in the utilization of resources required for plant growth, leading to increased plant productivity and storage. Considering that the study sites were young forests with an average DBH of 14.8~23.7 cm, it is expected that carbon stocks will increase as biodiversity and structural diversity increase. Further research is needed to develop techniques to quantitatively assess the relationship of diversity to carbon stocks for policy use in assessing and increasing carbon stocks in forests.
        4,200원
        16.
        2024.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Researching and estimating the ecological characteristics of target fish species is crucial for fisheries resource management. The results of these estimates significantly influence stock assessments and management reference points such as size limit and closed seasons. Recently, ecological characteristics have been changing due to overfishing, climate change, and marine pollution, making continuous estimation and monitoring essential. This study analyzed the ecological changes in small yellow croaker (Larimichthys polyactis) resources in Korea over 24 years (2000-2023) using biological data (growth and gonad traits). By estimating the annual length-weight relationship and length at maturity (L50 and L95), we interpreted the numerical trends of early maturation due to resource depletion. The parameter b of the length-weight relationship, indicating the nutritional status of the resources, showed a slight increase over the years, suggesting relatively good nutritional status (b > 3.0) during most periods. Trend analysis between length at maturity and biomass indicated that as biomass decreased, maturity length also decreased.
        4,000원
        17.
        2024.08 KCI 등재후보 구독 인증기관 무료, 개인회원 유료
        This study was attempted to investigate effects of ethical climate and workplace bullying on nurses’ turnover intention of nurses working in medium to large sized general hospitals in Korea. This study was conducted on 187 full-time nurses working in the general hospitals with more than 400 beds. Data were collected from the online communities of nurses using Google Foam from April 22 to April 24, 2024. The average values were 3.64±0.64 (out of 5 points) for ethical climate, 2.43±0.75 (out of 4 points) for workplace bullying, and 3.33±0.95 (out of 5 points) for nurses’ turnover intention. While ethical climate had a non-significant relationship with nurses' turnover intention, workplace bullying had a significant relationship with nurses' turnover intention. Nurses’ turnover intention was influenced by verbal attack, inappropriate task, working department, and educational level. These four variables can explain 53.0% of nurses' turnover intention. To prevent the turnover of nurses working at medium to large sized general hospitals, nursing managers need to pay more attention to nurses with low educational level and working at comprehensive wards and special wards. In addition, nursing managers should provide communication training to nurses and assign nursing tasks and working departments according to the nurses' abilities and wishes.
        4,300원
        18.
        2024.07 KCI 등재 구독 인증기관 무료, 개인회원 유료
        우리나라는 수출주도형 경제구조를 지니고 있어 세계 무역질서에 능동적으로 대 응할 필요가 있다. 중국의 G2 부상에 따라 미국은 중국을 견제하는 데 외교적 역량을 집중하고 있으며, 이는 지역 질서의 분절화 ․ 진영화로 나타나고 있다. 이러한 진 영화는 역내포괄적동반자협정(Regional Comprehensive Economic Partnership Agreement, RCEP), 포괄적 ․ 점진적환태평양경제동반자협정(Comprehensive and Progressive Agreement for Trans-Pacific Partnership, CPTPP), 인도태평양경 제프레임워크(Indo-Pacific Economic Framework, IPEF) 등 자유무역협정(FTA) 에서 본격화되고 있다. 우리나라의 통상정책은 중국이 주도하는 FTA인 RCEP에 가입한 이후 일본이 주 도하는 FTA인 CPTPP에 가입할 것인가? 그리고 미국이 주도하는 경제통상플랫폼 인 IPEF에 어느 분야에 참여할 것인가 하는 것이 당면한 과제가 되고 있다. 이러한 문제점을 인식하여 본 논문에서는 RCEP, CPTPP 및 IPEF의 효율적 추진 을 위해 그동안 추진되어왔던 통상정책의 방향 및 성과를 알아보고 RCEP, CPTPP 및 IPEF의 내용과 함께 추진 성과 제고를 위한 해양 ․ 수산분야의 환경조성 및 과제 를 알아보고자 한다.
        6,700원
        19.
        2024.07 KCI 등재 구독 인증기관·개인회원 무료
        P2E(Play-to-Earn)게임은 기존의 게임과 달리 게임을 통해 아이템 NFT, 가상자산(토큰) 획득으로 게임 이용자가 수익을 얻을 수 있는 게임의 한 종류다.1) 2023년도 국내에서 P2E게임 관련 판례가 확정되었고, 이에 따라 해외와 달리 국내에서 P2E게임은 전면 금지되고 있다. 기존 선행연구 에서 지속적으로 비판받아왔듯이, P2E게임에서 가상자산이 활용된다고 하 여, 가상자산의 사행적 측면을 혼재시켜, P2E게임을 사행성 게임물로 곧장 판단하는 것은 오도다. P2E게임 상에서 아이템의 NFT화와 게임 내 토큰 활용 과정을 면밀히 재검토한 결과, 선행연구에서 밝히고 있는 법리상의 문 제점에 더하여, P2E게임의 우연성 해소 가능성, 사행성 게임물과 P2E게임 의 본질적 차이(기대값), P2E게임과 가상자산의 분리 등의 새로운 문제점 을 발견할 수 있었다. 이에 따라, 본고에서는 국내 P2E 게임의 전면 금지의 배경이 된 최근 2 개의 판례를 비판적 검토함과 동시에 P2E게임에 대한 국내 선행 연구를 정리한 뒤, 우리나라 가상자산이용자보호법과 그 토대가 되는 EU의 MiCA 법, 그리고 프랑스 국내법인 SREN법을 살펴 우리나라에서 향후 P2E게임 이 허용될 가능성을 검토하고 그 방향성에 대한 논의를 담았다.
        20.
        2024.06 구독 인증기관 무료, 개인회원 유료
        3,000원
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