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- 저자 : 金裕振 (검색결과 9 건)
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다양한 알코올에 의해 일어나는 수용액내 CTAB 나노구조의 변이에 관한 연구
金裕振 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-
When the amphiphilic molecules are dissolved in water at the concentration above the critical micelle concentration(CMC), the phenomenon of micelle formation takes place. In this study the structures of the Cetyltrimethyl-ammonium Bromide(CTAB) micelles were investigated using SANS. These have received a considerable academic and industrial interests due to their special properties and various applicabilities. Although it has been well known that micelle of various forms can be formed, there are a lot of problems still not clearly confirmed about the detailed shapes, the size distribution of micelles, and inter-, intra- micelle interactions. For the present structure analysis, "Core and shell model" was introduced, in which the structure is consist of a "core" containing the surfactant hydrocarbon chains, a "shell" containing the charged head groups, a fraction of counter-ions, and water. It was possible to obtain structural information including the location of the alcohols in hydrocarbon core, hydrophilic shell and aqueous solvent media.
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Navigating the Hydroelectric Dam Disputes in the Mekong River: A Psychological Game Theory Analysis
금유진,김종섭 한국동남아학회 2023 동남아시아연구 Vol.33 No.4
The hydroelectric dam dispute in the Mekong River has escalated, posing threats to dam development, economic growth, and regional security. In pursuit of understanding the pivotal factors impeding sustainable dam construction, this study performs a comparative analysis of three mainstream hydroelectric dams in Laos: Xayaburi, Don Sahong, and Pak Beng Dams. The psychological game theory (PGT) proves instrumental in dissecting the fundamental rationale underpinning each country’s strategic yet occasionally irrational decision. By applying PGT to the three dams, this study uncovers that political asymmetry, mainly due to the inclusion of a powerful country, prompts participants to shift from a neutral to a fearful state of mind, leading to a seemingly irrational decision; the cessation of the Pak Beng Dam. The research findings hold substantial implications for hydroelectric dam discourse, as they open the avenue for fostering sustainable dam development, enhancing economic development, and bolstering regional security in the Mekong River.
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金裕振 弘益大學校 科學技術硏究所 2003 科學技術硏究論文集 Vol.14 No.-
When the detailed concentration gradient of organic matters is studied by X-ray scattering technique, scattering length density difference which arises from the electron density gradient is small and as a result only a limited information can be obtained. Whereas the scattering length density gradient of nucleus which is measured by Small Angle Neutron Scattering(SANS) can be made large enough for the fine structures to be determined using the isotope labeling. A wide range of the utilization program of 30MW research reactor, HANARO, SANS is currently in running at Korea Atomic Energy Research Institute. As a part of efforts to make most of the facilities, instrument has been recently installed and the corresponding instrumental / interpretational techniques are being developed for the future operation. The works done at HANARO for monochromation and calibration of neutron beam to achieve the optimum experimental condition were discussed.
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S자 다중 균형 모형 적용을 통한 조혼에 관한 양적 연구 – 지역별 (남아시아, 아프리카, 중남미) 비교 분석을 중심으로
금유진,김종섭 한국외국어대학교 중남미연구소 2023 중남미연구 Vol.42 No.1
This research conducts a quantitative and comparative case study in three regions to examine the causes of girls’ early marriage which have been accelerated by COVID-19. Early marriage severely infringes on girls’human rights, but it is still rampant in developing countries, particularly in South Asia, Africa, and Latin America. In this study, a case study on three countries (Bangladesh, Niger, Honduras) in each region is conducted to find the root cause of early marriage and provide effective policy suggestions to it, using the quantitative and comparison perspective and multi equilibria model. This S-shaped model explains the multi-equilibrium status that cultural norms in one community can be placed in, by utilizing the coordinating relationship between expectations and the actual value of early marriage. This study discloses four social factors (passive government attitudes, ineffective law, traditional gender-discriminatory culture, and high centripetal force by community) that are commonly observed in all three countries. The dominant two factors, government attitudes and the cohesive community, have a more significant impact on lowering people’s perceptions of early marriage. In conclusion, this research provides an implication that the government’s active participation in the community-unit approach is effective to eradicate the prevalent early marriage. 본 연구는 최근 COVID-19 팬데믹으로 인해 더욱 가속화된 조혼에 대한 해결 방법을 고안하기 위해 대표적인 세 지역의 비교 사례 연구를 진행하여 그 원인과 해결책을 제시하고자 한다. 조혼은 여아의 인권을 심각하게 침해하는 오래된 관습이지만, 남아시아, 아프리카, 중남미 등 개발도상국에서 여전히 만연하게 보고되고 있다. 본 연구는 조혼의 원인을 찾고 해결책을 제시하기 위해 지역 비교 관점과 다중 균형 모형을 사용하여 각 지역의 대표적인 3개국(방글라데시, 니제르, 온두라스)에 대한 양적 비교 연구를 진행하였다. 다중 균형 모형인 S자 모형은 기대치와 실제값이 조정되는 메커니즘을 이용하여, 사회공동체의 문화적 규범이 놓일 수 있는 다중 균형 상태를 설명한다. S자 모형으로 분석한 결과, 세 지역에서 공통적으로 4가지의 사회 요인(미온적인 정부 태도, 효과적이지 않은 법, 전통적 문화 규범, 높은 공동체적 응집성)이 조혼을 강화해온 것으로 나타났다. 그리고 4가지 요인 중 정부 태도와 전통적 문화 규범이 조혼에 대한 인식을 낮추는 데 더욱 효과적임이 분석되었다. 따라서, 본 사례 비교 연구는 효과적인 조혼 근절에 있어서 정부의 적극적인 해결 의지에 공동체 단위의 접근이 수반되어야 할 것을 중요한 시사점으로 제시한다.
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