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( Sojin Lim ) 이화여자대학교 통일학연구원 2021 Journal of peace and unification Vol.11 No.1
This study examines whether North Korea can be a part of the SDG process as a fragile state under sanctions. The paper focuses on the accountability mechanism of the SDG implementation process, and analyses how North Korea has engaged in the process and what needs to be addressed to achieve ‘leave no one behind’ principle of the SDGs. The findings of the study reveal that North Korea can engage in the SDG process, but only when a culture of accountability develops in its society and government structure. This study suggests employing the concept of ‘transitional accountability’. Finally, the study argues that a constructive accountability approach can be more effective than a punitive one, especially in fragile states under sanctions.
국내 R&D 제조기업의 효율성 결정요인에 대한 연구: R&D 및 특허효과를 중심으로
임소진 ( Lim Sojin ) 한국지식경영학회 2021 지식경영연구 Vol.22 No.4
투입 증대를 통한 경제성장 전략은 급격히 변화하는 경제환경과 맞물리면서 한계를 보이면서 기업의 투입 대비 효율성에 대한 관심이 증가하고 있다. 본 연구는 국내 제조기업 중 연구개발 투자액 상위 938개 기업의 2005~2018년 패널데이터를 활용하여 기업의 효율성을 측정하고, 효율성에 영향을 주는 요인을 분석하였다. 분석 결과, 기업의 혁신을 위한 투입인 연구개발집중도와 연구개발 성과인 특허가 모두 기업의 효율성을 높이는 것으로 나타났다. 이 밖에 기업의 규모, 부채비율, 수익성 등도 기업의 효율성에 유의미한 영향을 주었다. 분석결과를 통해 본 연구는 기업의 낮은 효율성을 극복하기 위한 지식경영 관점에서의 시사점을 제시하였다. In that economic growth strategy through maximizing input would not working anymore in the rapidly changing economic environment, now we should focus on the improvement of firms’ efficiency. This study estimate the efficiency and determinants of the efficiency using the panel data of 938 Korean manufacturing firms which ranked in high R&D investment firms during 2005~2018. We found that both R&D intensity as R&D input and patent stock as R&D output increase the efficiency of firms independently. And firm size, debt ratio, profitability also affect the firm’s efficiency.
임소진(Sojin Lim) 한국혁신학회 2021 한국혁신학회지 Vol.16 No.3
본 연구는 2000~2012년 기간 동안 국내에서 특허를 보유한 6,139개 기업(55,874개 관측치)을 대상으로 거시환경, 산업 및 기업의 특성이 기업의 특허활동 및 전략 선택에 미치는 영향을 구조방정식을 활용하여 분석하였다. 분석 결과, 경제 환경, 산업의 경쟁강도 및 성장율, 기술의 진부화율 및 복잡성, 그리고 기업의 자산 및 R&D 투자 규모 등의 요인이 기업의 특허활동 및 특허출원 성향, 방어출원 경향성, 특허기술의 융합성 및 권리성, 출원특허의 품질 등에 복합적인 영향을 미치고 있는 것으로 확인되었다. This study examines the effects of macroeconomic environment, industrial and technological features, and firm’s characteristics on firm’s patent activity and strategy using 6,139 Korean firms(55,874 observations) during the period of 2000~2012. It shows that economic trend, competitive strength in industry, growth rate of industry, obsolescence rate and complexity of technology, firm’s size and R&D investment affect firm’s patent activity and propensity to patent, defense patent strategy, the technological and claim’s width of patent, and patent’s quality.
Sojin Jeong,Jihye Kim,Hanul Cho,Hwakyeung Jeong,Byungman Kang,Sang Ho Lim 한국분석과학회 2024 분석과학 Vol.37 No.2
We present a rapid method for the determination of Cs, Sr, and Ba, heat generators found in highly active liquid wastes, by gas-pressurized extraction chromatography (GPEC) using a column containing a cationexchange resin. GPEC is a microscale column chromatographic technique that uses a constant flow rate of solvent (0.07 mL/min) with pressurized nitrogen gas supplied through a valve. In particular, because this method uses a small sample volume (a few hundred microliters), it produces less chemical waste and allows for faster separation compared to traditional column chromatography. In this study, we evaluated the separation of Cs, Sr, and Ba using GPEC. The eluate from the column (GPEC or conventional column chromatography) was quantitatively analyzed using inductively coupled plasma-mass spectrometry to measure the column recovery and precision. The column reproducibility of the proposed GPEC system (RSDs of recoveries) ranged from 2.7 to 4.1 %, and the column recoveries for the three elements ranged from 72 to 98% when aqueous HCl was used as the eluent. The GPEC results are slightly different in efficiency and separation resolution compared to those of conventional column chromatography because of the differences in the eluent flow rate as well as the internal diameter and length of the column. However, the two methods had similar recoveries for Cs and Sr, and the precision of GPEC was improved by two-fold. Remarkably, the solvent volume required for GPEC analysis was five times lower than that of the conventional method, and the total analysis time was 11 times shorter.
Sojin Jeong,Hanul Cho,Byungman Kang,Jihye Kim,Sang Ho Lim 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.2
During the initial cooling period of spent nuclear fuel, Cs-137 and Sr-90 constitute a large portion of the total decay heat. Therefore, separating cesium and strontium from spent nuclear fuel can significantly decrease decay heat and facilitate disposition. This study presents analytical technique based on the gas pressurized extraction chromatography (GPEC) system with cation exchange resin for the separation of Sr, Cs, and Ba. GPEC is a micro-scaled column chromatography system that allows for faster separation and reduction volume of elution solvent compared to conventional column chromatography by utilizing pressurized nitrogen gas. Here, we demonstrate the comparative study of the conventional column chromatography and the GPEC method. Cation exchange resin AG 50W-X12 (200~400 mesh size) was used. The sample was prepared at a 0.8 M hydrochloric acid solution and gradient elution was applied. In this case, we used the natural isotopes 88Sr, 133Cs, and 138Ba instead of radioactive isotopes for the preliminary test. Usually, cesium is difficult to measure with ICP-OES, because its wavelengths (455.531 nm and 459.320 nm) are less sensitive. So, we used ICP-MS to determine the identification and the recovery of eluate. In this study, optimized experimental conditions and analytical result including reproducibility of the recovery, total analysis time and volume of eluents will be discussed by comparing GPEC and conventional column chromatography.