• 제목/요약/키워드: International Research

검색결과 19,075건 처리시간 0.044초

루미네선스 연대측정 상호비교를 위한 국제공동연구 결과 고찰 (Review of International Research Cooperation Results for Intercomparison of Luminescence Dating)

  • 김진철
    • 한국제4기학회지
    • /
    • 제34권1호
    • /
    • pp.31-40
    • /
    • 2024
  • 덴마크 리소(Risø) 연구소에서 진행한 국제 공동 연구 프로젝트인 루미네선스 연대측정 상호비교 프로젝트는 등가선량, 연간선량, 그리고 절대연대 결과를 동일 시료를 대상으로 실험실마다 도출하여 실험실 간에 결과 값의 상호 비교와 신뢰도를 평가한 프로젝트로 2006년도부터 2012년도까지 진행되었다. 이번 프로젝트에서는 전 세계 30개 실험실이 참여하였고 한국지질자원연구원(KIGAM)의 루미네선스 실험실도 포함된다. 프로젝트 종합 결과, 대체적으로 연대결과의 평균값은 약 13% 내의 실험실 간 과대산포(over-dispersion)값을 보인다. KIGAM에서 분석된 provided quartz를 통하여 얻어진 등가선량 값은 프로젝트 최종 등가선량 값과 거의 일치하는 결과를 보인다. 반면, self-extracted quartz로부터 얻어진 등가선량 값은 프로젝트 최종 결과 값과 약 0.9Gy의 차이를 보이는데 이는 분리된 석영의 입자 크기 차이 등에 기인한다고 생각된다. 이번 국제 공동 연구 프로젝트는 루미네선스 연대측정과 관련하여 진행된 첫 번째 대규모 국제 공동 연구로 국제적으로 루미네선스 연대측정의 신뢰도와 활용에 기여하였을 것으로 생각된다.

우리나라에 있어서 중소기업에 대한 무역금융으로서 국제팩토링의 발전방안에 관한 연구 (A Study on Development Strategies of International Factoring as trade financing in Korea)

  • 배정한
    • 무역상무연구
    • /
    • 제39권
    • /
    • pp.105-142
    • /
    • 2008
  • For many companies, selling in an international market place is the ultimate challenge. One of the greatest problems facing exporters is the increasing insistence by importers that trade be conducted on open account terms. This often means that payment is received many weeks or even months after delivery. Unsurprisingly, many organisations find that giving buyers credit in this way can cause severe cash flow problems. Further problems can arise if the importer delays payment beyond originally agreed terms or makes no payment at all because of financial failure. In particular, many SMEs find it difficult to finance their production cycle, since after goods are delivered most buyers demand 30 to 90 days to pay. Therefore, International factoring for SME has been developing very rapidly in the world trade financing markets. Functions of international factoring as trade financing is a comprehensive financial service that includes credit protection, accounts receivable bookkeeping, collection services and financing. Factoring can be a powerful tool in providing financing to high-risk, informationally opaque sellers. International factoring is very helpful for international exporters to get competitiveness in the world markets. In Korea, a few banks are operating international factoring. But International factoring in Korea could not play a key roll as general trade supporting service. So, This study is to suggest importances of international factoring development for trade development and to investigate real operation situations and problems by way of interviews with operators in banks that are operating international factoring and suggest development strategies for international factoring in Korea.

  • PDF

An Overview of Teff (Eragrostis teff Zuccagni) Trotter) as a Potential Summer Forage Crop in Temperate Systems

  • Habte, Ermias;Muktar, Meki S.;Negawo, Alemayehu T.;Lee, Sang-Hoon;Lee, Ki-Won;Jones, Chris S.
    • 한국초지조사료학회지
    • /
    • 제39권3호
    • /
    • pp.185-188
    • /
    • 2019
  • The production of traditional cool season grasses in temperate regions is becoming hampered during summer seasons due to water deficit. Thus, incorporating water use efficient warm season annual grasses are generally considered to fill the gap of summer season forage reduction that would offer considerable flexibility and adaptability to respond to forage demand. Teff (Eragrostis teff Zuccagni) Trotter) is, a C4 drought tolerant warm season annual grass primarily grown for grain production, recently gaining interest for forage production particularly during summer season. Previous reports have showed that teff is palatable and has comparable forage biomass and feed quality as compared to other warm season annual grasses which would make it an alternative forage. However, the available data are not comprehensive to explore the potential of teff as forage, hence further assessment of genotype variability and performance along with compatibility study of teff with forage production system of specific environment is key for future utilization.

The Southern World as a Destination of International Students: an Analysis of 50 Tertiary Education Institutions in Vietnam

  • Pham, Hiep-Hung;Vuong, Quan-Hoang;Dong, Thi-Kieu-Trang;Nguyen, Tien-Trung;Ho, Manh-Toan;Vuong, Thu-Trang;Hoang, Anh-Duc;Nguyen, Mai-Huong
    • Journal of Contemporary Eastern Asia
    • /
    • 제20권1호
    • /
    • pp.24-43
    • /
    • 2021
  • Traditionally, students from the Southern world tend to cross their national borders to study abroad. However, in recent times, we have observed a trend in which more and more students, both full-time and short-term, select Southern countries as destinations for overseas education. This paper contributes to the sparse literature on the above phenomenon, examining the case of Vietnam. We surveyed 50 universities and colleges about their international student profiles (including statistics and nationalities) and their strategies for attracting international students. The findings of this study provide implications for Vietnam's policymakers and university/college leaders and other Southern countries when implementing the internationalization of tertiary education.

지속가능성 매크로 트렌드(Macro trend) 키워드별 지속가능패션 연구동향 - 2017년부터 2021년까지 국내외 학회지를 중심으로 - (Examining Research Trends on Sustainable Fashion through Keywords Related to Sustainability Macro Trends - Focusing on Domestic and International Research from 2017 to 2021 -)

  • 박신주;고은주;김상진
    • 한국의류산업학회지
    • /
    • 제24권1호
    • /
    • pp.53-65
    • /
    • 2022
  • The fashion industry is facing numerous sustainability-related challenges due to growing consciousness about the egregious extent of global environmental problems. This study examines research trends on sustainable fashion based on five macro trends related to sustainable innovation in the fashion industry. Using the content analysis and network analysis methods, 115 research papers published in domestic and international journals from 2017 to 2021 were collected and analyzed. The study conclusions are as follows. First, majority of domestic papers(55.41%) focused on circular economy, whereas other topics such as consumer awareness(1.35%) and corporate social responsibility(2.70%), are yet to be thoroughly examined; majority of international papers(53.65%) focused on sharing economy and collaborative consumption, whereas other topics such as technological innovation(2.44%), are yet to be thoroughly examined. Second, domestic papers have found that many brands(68.57%) are applying the concept of circular economy, whereas international papers have found that many brands(51.56%) are applying the concept of sharing economy and collaborative consumption. The study results provide useful data for corporate management in the fashion industry.

건축유산의 디지털 기술 활용에 관한 국제 연구동향 분석: CIPA2023 국제심포지엄 사례를 중심으로 (Analysis of International Research Trends in the Utilization of Digital Technologies for Architectural Heritage: A Case Study of the CIPA2023 International Symposium)

  • 강혜리;이종욱
    • 건축역사연구
    • /
    • 제32권6호
    • /
    • pp.63-75
    • /
    • 2023
  • Based on my attendance at the CIPA International Symposium(CIPA2023) organized by the International Scientific Committee on Heritage Documentation(ICOMOS), this paper explored research cases applying digital technologies, including BIM, to architectural heritage. The researches presented at this symposium were categorized into specific areas: data acquisition, data management, data sharing&experience. Through this classification, an analysis of research cases in architectural heritage utilizing digital technology was conducted. By categorizing the 43 academic papers from the CIPA2023 based on research themes, trends in the digital architecture field were analyzed, providing insights into future research directions for the digital acquisition, management, sharing, and experiential aspects of Korean architectural heritage. In conclusion, it is deemed necessary to reference and supplement the methodologies, including algorithms, workflows, and approaches developed in each study, to effectively apply methodologies suitable for the characteristics of Korean architectural heritage and its data.

수정체 방사선 방호에 관한 규제기준 및 기술기준 검토 (Review on Regulatory and Technical Standards of Radiation Protection for Lens of the Eye)

  • 김시영;황석주;김재성;손중권
    • 방사선산업학회지
    • /
    • 제18권1호
    • /
    • pp.1-7
    • /
    • 2024
  • The International Commission on Radiological Protection (ICRP) lowered the annual equivalent dose limit of lens of the eye for radiation workers from 150 to 20 mSv in April 2011. This trend of lowering the equivalent dose limit for radiation workers has been observed worldwide, including international organizations such as the International Atomic Energy Agency (IAEA), International Organization for Standardization (ISO) and the European Commission (EC). In 2016, the Nuclear Safety and Security Commission of South Korea published research results that included a proposal for lowering the equivalent dose limit of lens of the eye for radiation workers in line with the ICRP recommendation. However, as of now, South Korea's Nuclear Safety Act and related regulations still specify an annual equivalent dose limit of lens of the eye as 150 mSv for radiation workers. The IAEA and ISO have issued guidelines regarding radiation protection for lens of the eye and recommended a dose level for the lens of the eye at 5 or 6 mSv per year for periodic monitoring of the equivalent dose for the lens of the eye.

Mixed Methods Research on the Intercultural Sensitivity of Summer Program Participants; Comparison of US Participants and Korean Language Partners

  • Soyoung Jeong
    • International Journal of Advanced Culture Technology
    • /
    • 제11권4호
    • /
    • pp.112-122
    • /
    • 2023
  • This study was conducted as part of a summer Korean language and culture program at a university in Korea, aimed at examining the changes in intercultural sensitivity among American students who participated in the program, as well as the Korean students who served as their language partners. The research utilized a mixed-method approach combining qualitative and quantitative analysis. To derive research findings, pre- and post-program Intercultural Sensitivity Scale surveys were administered to participating students and semi-structured interview data were collected from a randomly selected group of six students. The research findings indicated that among a total of twenty-seven students including both American and Korean students, significant changes in intercultural sensitivity were observed in the domain of Interaction Engagement. Furthermore, fourteen American students showed significant changes in their Interaction Confidence, while the Korean students who participated as language partners did not exhibit significant changes in the five subdomains of intercultural sensitivity.

Tokamak plasma disruption precursor onset time study based on semi-supervised anomaly detection

  • X.K. Ai;W. Zheng;M. Zhang;D.L. Chen;C.S. Shen;B.H. Guo;B.J. Xiao;Y. Zhong;N.C. Wang;Z.J. Yang;Z.P. Chen;Z.Y. Chen;Y.H. Ding;Y. Pan
    • Nuclear Engineering and Technology
    • /
    • 제56권4호
    • /
    • pp.1501-1512
    • /
    • 2024
  • Plasma disruption in tokamak experiments is a challenging issue that causes damage to the device. Reliable prediction methods are needed, but the lack of full understanding of plasma disruption limits the effectiveness of physics-driven methods. Data-driven methods based on supervised learning are commonly used, and they rely on labelled training data. However, manual labelling of disruption precursors is a time-consuming and challenging task, as some precursors are difficult to accurately identify. The mainstream labelling methods assume that the precursor onset occurs at a fixed time before disruption, which leads to mislabeled samples and suboptimal prediction performance. In this paper, we present disruption prediction methods based on anomaly detection to address these issues, demonstrating good prediction performance on J-TEXT and EAST. By evaluating precursor onset times using different anomaly detection algorithms, it is found that labelling methods can be improved since the onset times of different shots are not necessarily the same. The study optimizes precursor labelling using the onset times inferred by the anomaly detection predictor and test the optimized labels on supervised learning disruption predictors. The results on J-TEXT and EAST show that the models trained on the optimized labels outperform those trained on fixed onset time labels.