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NONRELATIVISTIC LIMIT OF CHERN-SIMONS GAUGED FIELD EQUATIONS
Chae, Myeongju,Yim, Jihyun Korean Mathematical Society 2018 대한수학회논문집 Vol.33 No.3
We study the nonrelativistic limit of the Chern-Simons-Dirac system on ${\mathbb{R}}^{1+2}$. As the light speed c goes to infinity, we first prove that there exists an uniform existence interval [0, T] for the family of solutions ${\psi}^c$ corresponding to the initial data for the Dirac spinor ${\psi}_0^c$ which is bounded in $H^s$ for ${\frac{1}{2}}$ < s < 1. Next we show that if the initial data ${\psi}_0^c$ converges to a spinor with one of upper or lower component zero in $H^s$, then the Dirac spinor field converges, modulo a phase correction, to a solution of a linear $Schr{\ddot{o}}dinger$ equation in C([0, T]; $H^{s^{\prime}}$) for s' < s.
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이정원(Jungwon Lee),선인경(Inkyoung Sun),김왕동(Wangdong Kim),박병원(Byeongwon Park),임덕순(Deok Soon Yim),김기국(Kikook Kim),김지현(Jihyun Kim),이향희(Elly Hyanghee Lee),전병우(Byung Woo Jeon),이선아(Suna Lee),민지혜(Jeehye Min),이종일 과학기술정책연구원 2020 정책연구 Vol.- No.-
The Korean government has introduced Official Development Assistance (ODA) Partnership Programs as part of efforts to increase the efficiency of ODA programs while addressing segmentations between grants and concessional ODA programs and projects. This research has significance in the development cooperation policy in Korea, given that the research addresses the confusion related to concepts and challenges regarding ODA Partnership Program, and it also provides policy recommendations to address such challenges. The research on the “Planning of ODA Partnership Program in STI” is conducted with two purposes: the first is to increase the effectiveness of Korea’s ODA programs and to revitalize integrated ODA programs, by analyzing the status and the challenges about current ODA integration policies and programs of the government. The second is to proactively respond to the demands of the Korean government in development cooperation policy and programs by providing planning cases of ODA partnership program in STI. The research consists of two parts: in the first part, the main challenges in ODA integrated policies and programs are identified through conducting in-depth interviews with practical experts from public agencies and universities in the development cooperation community. The research team also conducted a survey to further clarify the issues and to develop policy recommendations to address such challenges. Survey questions are elaborated on the basis of results of the in-depth interviews, and the survey was targeted the experts from implementing agencies of ODA projects and government officials from ODA related ministries. Based on the interview and survey results, policy recommendations for integrated ODA policy and programs are suggested. The second part is how to plan ODA Partnership Program in STI, which can be used by relevant ministries and implementing agencies of ODA projects. The research team developed a guideline for the planning of ODA Partnership Program in STI, which includes process and methodology for the program planning. Based on the guideline, pilot cases of ODA Partnership Programs in STI are developed targeting six countries such as Laos, Sri Lanka, Azerbaijan, Indonesia, Cambodia and Tunisia. The research emphasizes that partnership in STI ODA programs is one of the key policy directions in the development cooperation for the successful transition to the problem-solving ODA programs. With several findings and implications from reviewing challenges and limitations of the current policies regarding ODA Partnership Programs, the research provides policy recommendations about how to implement ODA Partnership Programs in an effective manner. The research also provides useful results for the practitioners of aid projects. The guideline in the research provides the procedures for planning an ODA Partnership Program from the perspective of practitioners. Another contribution of the research also can be found in the problem-solving oriented planning with a top-down approach and the systematic planning procedures for an ODA Partnership Program. The usefulness of the research can be found that pilot cases of ODA Partnership Programs are developed by applying the methodology for ODA Partnership Programs in STI. It is expected that the pilot programs are good references for the government and practitioners in the development and implementation of their future ODA Partnership Programs in STI.
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김종훈(Jonghun Kim),변주영(Juyoung Byon),이민영(Minyeong Lee),송진경(Jinkyung Song),이영은(Youngeun Lee),임지현(Jihyun Yim),유인삼(Insam Yoo),김은희(Eunheui Kim) 전남대학교 수산과학연구소 2002 수산과학연구소논문집 Vol.11 No.-
The distributions of drug resistance bacteria were investigated in 28 sites of the southern coastal sea water of korea. Drug resistance bacteria were isolated using the sea water nutrient agar media containing the 10㎍/㎖ of ampicillin(AM), 25 ㎍/㎖ of streptomycin(SM), and 250㎍/㎖ of sulfonamide(SA). Over 30% of total bacteria showed AM and SM resistance in 8 and 7 sampling sites, respectively but SA resistance only in 2 sites. Two hundreds and ninty isolates were divided to 6 types of resistance pattern from 1 to 6 kind of drugs. Over 60% of the resistance bacteria showed multiple resistant to more than 3 drugs. About 70% of multiple drug resistance bacteria had the transferable resistance marker and the markers were AM, kanamycin, oxytetracyclin resistance. The resistance bacteria to oxytetracycline or oxolinic acid appeared around fish farms developed well.
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