• Title/Summary/Keyword: National Research Foundation of Korea

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Review of Food Science Research in Korea with a Special Emphasis on Funding by Korea Science & Engineering Foundation (KOSEF)

  • Min, Tae-Sun;Park, Kun-Young;Lee, Chan
    • Preventive Nutrition and Food Science
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    • v.10 no.4
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    • pp.382-390
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    • 2005
  • This study evaluated trends in research funding and the present status of food science in Korea with a special emphasis on funding by Korea Science and Engineering Foundation (KOSEF). The proportion of research funds allocated to food science has increased every year in agricultural science. The numbers of group-based programs of KOSEF have been increasing since 1980' and the ratio of individual-based programs decreased in . this-field. Researchers in the food science field ranges. from 46 to 50 years of age, with a mean age of 47. Mid- to long-term research master plans will be required to encourage food science research in Korea.

Analysis on online marketing of tobacco product in Korea: current issues and future directions for tobacco control (온라인 담배 마케팅 분석을 통한 담배규제정책의 향후 과제 : 온라인 담배 판매 및 광고를 중심으로)

  • Yang, Yu Seon;Cha, Jung Lim;Kong, Jae Hyung;Hwang, Ji Eun;Choi, Jung Mi;Lee, Joung Eun;Oh, Yu Mi
    • Korean Journal of Health Education and Promotion
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    • v.33 no.5
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    • pp.71-81
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    • 2016
  • Objectives: Tobacco marketing encourages smoking initiation of non-smokers, especially adolescents, and it hinders quit intention of those who smoke or who attempt to quit smoking. Article 13 of the WHO Framework Convention on Tobacco Control(WHO FCTC) requests a comprehensive ban on tobacco advertising, promotion and sponsorship(TAPS). Ratified the Convention in 2005, Korea has partially implemented the provisions. However, online marketing regulations are still insufficient. Methods: Based on relevant national and international regulations, this research designed monitoring mechanism for online tobacco marketing and studied 1,404 websites to identify current situation of online sales and advertisement of tobacco in Korea. Results: This study found that online trade of tobacco products are overtly conducted, while tobacco advertising with flavoring and misleading descriptors are also prevalent. Also, online tobacco marketing facilitate adolescents' access to tobacco product and that advertising and promotion activities lead to tobacco purchase without difficulties. Conclusions: Fundamental solution to prevent online tobacco advertisement and promotion is banning online sales of tobacco and conducting a regular monitoring for compliance. Korean government should consider establishing an official surveillance system for online tobacco advertisement, followed by a comprehensive ban on TAPS to fulfill its obligation as a Party to the FCTC.

Effect of a Sunken Mat Foundation on the Horizontal Design Spectrum of a Structure (깊게 파인 온통기초가 구조물의 수평방향 설계스펙트럼에 미치는 영향)

  • Kim, Yong-Seok
    • Journal of the Earthquake Engineering Society of Korea
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    • v.25 no.4
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    • pp.169-177
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    • 2021
  • In this paper, horizontal seismic responses of a structure built on a sunken mat foundation were compared with those built on a solid embedded mat foundation to investigate the effect of a sunken mat foundation on the horizontal response of a structure. Seismic analyses of a structure laid on the embedded mat foundation were performed by utilizing a pseudo-3D finite element software of P3DASS. Three bedrock earthquake records downloaded from the Pacific Earthquake Engineering Research Center database were scaled to reproduce weak-moderate earthquakes. Weak, medium, and stiff soil layers were considered for the seismic analyses of the structure-foundation-soil system. Parametric studies were performed for foundation radius, foundation embedment depth, and shear wave velocity of a soil layer to investigate their effect on the seismic response spectrum. The study result showed that the design spectrum of a structure built on a sunken mat foundation was similar to that with a solid embedded mat foundation showing a slight difference due to almost the same seismic base motion beneath both embedded foundations.

Dynamic Stability Analysis of Floating Transport Wind-Turbine Foundation Considering Internal Fluid Sloshing Effect (내부 유체 슬로싱 효과를 고려한 부유이송 해상풍력 기초의 동적 안정성 해석)

  • Hong, Seokjin;Kim, Donghyun;Kang, Sinwook;Kang, Keumseok
    • KEPCO Journal on Electric Power and Energy
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    • v.2 no.3
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    • pp.461-467
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    • 2016
  • In order to install the floating transport type wind-turbine foundation, water pumping is used to sink the foundation. During this process, its mass and center of gravity, and buoyancy center become continuously changed so that the dynamic stability of the floating foundation become unstable. Dynamic stability analysis of the floating foundation is a complex problem since it should take into account not only the environmental wave, wind, and current loads but also its weight change effect simultaneously considering six-degree-of-freedom motion. In this study, advanced numerical method based on the coupled computational fluid dynamics (CFD) and multi-body dynamics (MBD) approach has been applied to the dynamic stability analysis of the floating foundation. The sloshing effect of foundation internal water is also considered and the floating dynamic characteristics are numerically investigated in detail.

First Report of Bacterial Wilt by Ralstonia pseudosolanacearum on Peanut in Korea (Ralstonia pseudosolanacearum에 의한 땅콩 풋마름병 발생 보고)

  • Choi, Soo Yeon;Kim, Nam Goo;Kim, Sang-Min;Lee, Bong Choon
    • Research in Plant Disease
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    • v.28 no.1
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    • pp.54-56
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    • 2022
  • A peanut plant showing wilt and browned symptom was found in the field of Gochang, Korea, in July 2021. The symptomatic peanut plant was collected from the field and isolation of the pathogen caused the wilt symptom was performed using the collected sample on TZC media. The dominated colony on media was isolated colony on media was isolated and subcultured of purification. The pure cultured bacteria was identified as Ralstonia solanacearum by sequencing of 16S rRNA gene. Multiplex polymerase chain reaction using phylotype-specific primer set identified isolate as phylotype I (R. pseudosolanacearum). Phylogenetic tree was constructed based on 16S rRNA sequence and it was closed with R. pseudosolanacearum. Pathogenicity of the isolates was assessed by soil drenching inoculation on 4-week-old peanut plant. The wilt symptom was successfully reproduced by inoculation of the isolates after 14 days. This is first report of bacterial wilt caused by R. pseudosolanacearum on peanut in Korea.

Design and analysis of offshore wind structure

  • Young-Suk You;Min-Young Sun;Young-Ho Lee
    • Advances in Computational Design
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    • v.8 no.3
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    • pp.191-217
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    • 2023
  • The objective of this study was to evaluate the foundation structure of a 3.6-MW wind turbine generator (WTG) installed offshore in Western Korea. The ultimate limit state (ULS) and fatigue limit state (FLS) of the multi-pile steel foundation (MSF) installed at the Saemangeum offshore wind farm were structurally investigated using the finite element (FE) software, ANSYS Workbench 19.0. According to the ULS analysis, no plastic deformation was found in any of the components constituting the substructure. At the same time, the maximal stress value reached the calculation limit of 335 MPa. According to the FLS results, the stress concentration factor (SCF) ranged from 1.00 to 1.88 in all components. The results of this study can be applied to determine the optimal design for MSFs.

Quantitative Definitions of Collaborative Research Fields in Science and Engineering

  • Schwartz, Mathew;Park, Kwisun;Lee, Sung-Jong
    • Asian Journal of Innovation and Policy
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    • v.5 no.3
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    • pp.251-274
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    • 2016
  • Practical methodology for categorizing collaborative disciplines or research in a quantitative manner is presented by developing a Correlation Matrix of Major Disciplines (CMMD) using bibliometric data collected between 2009 and 2014. First, 21 major disciplines in science and engineering are defined based on journal publication frequency. Second, major disciplines using a comparing discipline correlation matrix is created and correlation score using CMMD is calculated based on an analyzer function that is given to the matrix elements. Third, a correlation between the major disciplines and 14 research fields using CMMD is calculated for validation. Collaborative researches are classified into three groups by partially accepting the definition of pluri-discipline from peer review manual, European Science Foundation, inner-discipline, inter-discipline and cross-discipline. Applying simple categorization criteria identifies three groups of collaborative research and also those results can be visualized. Overall, the proposed methodology supports the categorization for each research field.