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Head-space GC-MS를 활용한 마늘추출물 함유 유기농자재 중 Allylmethyl Sulfide, Dimethyl Disulfide 및 Dipropyl Sulfide 분석
임성진 ( Sungjin Lim ),오영탁 ( Youngtak Oh ),김진효 ( Jinhyo Kim ),최근형 ( Geunhyoung Choi ),박병준 ( Byungjun Park ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.3
BACKGROUND: Garlic (Allium sativum) contains polyphenols and sulfur compounds that are recognized as antioxidant, antithrombotic, anticancer, antibacterial, antimicrobial, nematicidal, and insecticidal activity. For this reason, the Environmentally-friendly Agriculture Promotion Act allowed the garlic extract as commercial biopesticide material for crop protection, nine commercial biopesticides containing A. sativum extract have been marketed in Korea. METHODS AND RESULTS: The determination of allylmethyl sulfide (AMS), dimethyl disulfide (DMDS), and dipropyl sulfide (DPS) in biopesticides containing A. sativum extract was developed and validated by gas chromatography (GC) mass spectrometry (MS) with head-space sampler. The developed method was validated, and the limit of quantification (LOQ) and recovery rates of AMS, DMDS, and DPS were 0.08, 0.32, and 0.09 mg/L and 90.3-91.3, 86.2-88.3, and 87.6-89.5%, respectively. From the nine commercial biopesticide samples, contents of AMS, DMDS, and DPS were analyzed using the developed method and results showed <LOQ, <LOQ-20.0 mg/L, and <LOQ, respectively. CONCLUSION: The developed method would contribute to manufactures producing commercial biopesticides and the quality control of biopesticides containing A. sativum extract.
임성진 ( Sung Jin Lim ),한문수 ( Mun Soo Han ),이민규 ( Min Kyu Lee ),박동현 ( Dong Heun Park ),권순영 ( Soon Young Kwon ),오경호 ( Kyoung Ho Oh ) 대한갑상선학회 2021 International Journal of Thyroidology Vol.14 No.1
Thyroid tuberculosis with papillary thyroid carcinoma is very rare. The current study shows the case of a 67-year-old female who was admitted to Ansan Hospital of Korea University, with her thyroid nodules showing signs of malignancy under ultrasonography. A histopathological examination proved the coexistence of papillary thyroid carcinoma (PTC) and thyroid tuberculosis (TB). A total thyroidectomy and excision of the enlarged left neck level II lymph node were performed. This report presents a rare case of coexistence of PTC and thyroid TB. Further investigation is needed to evaluate the possible role of PTC in thyroid mycobacterial infection.
임성진(Sung Jin Lim),채용배(Yong Bae Chae),이상호(Sang Ho Lee),정신택(Shin Taek Jeong),조홍연(Hong Yeon Cho) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
Numerical investigations have been carried out to analyze flow field characteristics around manganese nodule mining device in deep sea. Flow field is largely affected by moving mining device. With the operation of the mining device complicated flow variation remarkably generated from the rear of mining device depends on moving speed of the mining device. Turbulent kinetic energy behind the mining device gradually increases with the velocity of mining device. The nodule particles behavior is also predicted.
임성진(Sung-Jin Lim),채승훈(Seung-Hoon Chae),반성범(Sung Bum Pan) 한국정보기술학회 2010 한국정보기술학회논문지 Vol.8 No.11
The fingerprint information can cause serious problems when it has been compromised. Because it's a limited biometrics. Recently, there is an increasing study of the fuzzy fingerprint vault system to protect fingerprint information. The study on the problem of fingerprint alignment using geometric hashing technique carried out. This paper proposes a hardware architecture fuzzy fingerprint vault system based on geometric hashing. The proposed architecture consists of software and hardware module. The hardware module has charge of matching between enrollment hash table and verification hash table. We also propose the hardware architecture using parallel process for high-speed process of fuzzy fingerprint vault. Based on the experimental results, the execution time of the proposed system with 36 real minutiae is 0.24 second when 200 chaff minutiae, 0.53 second when 400 chaff minutiae. In the same condition, we confirmed that the proposed system using parallel process takes 0.01 second and 0.03 second, respectively.
UPLC를 활용한 데리스 추출물 함유 유기농자재 중 Rotenone과 Deguelin 정량분석
임성진 ( Sung Jin Lim ),김진효 ( Jin Hyo Kim ),최근형 ( Geun Hyoung Choi ),박병준 ( Byung Jun Park ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.1
BACKGROUND: Three commercial biopesticides containing derris extract, which is permitted as a commercial biopesticide substances by the Environmentally-friendly Agriculture Promotion Act, have been marketed in Korea. But, the quantitative analytical method of active substances for crop protection in biopesticides containing derris extract has not known. METHODS AND RESULTS: Solid phase extraction (SPE) cartridge clean-up method for the quantitative analysis of rotenone and deguelin in biopesticides containing derris extract was developed and validated by ultra-performance liquid chromatography (UPLC). The clean-up method was established using hydrophilic lipophilic balance (HLB) SPE cartridges for the bioactive substances in biopesticides containing derris extract, and the eluate was analyzed to quantify the rotenone and deguelin by the UPLC. LOQ and recovery rates of rotenone and deguelin were 0.085 and 0.044 mg/L, 95.7 and 93.3%, respectively. The content of rotenone and deguelin in three biopesticides containing derris extract were analyzed by the developed method, the results showed 0.001-0.236 and <LOQ-0.258%, respectively. CONCLUSION: The developed method could be applicable to determine the active substances and to control the quality of commercial biopesticide containing derris extract.
일본 지자체 민관파트너십(PPP)사업의 추진유형과 시사점 - 일본 요코하마시를 사례로 -
임성진 ( Sung-jin Lim ),나주몽 ( Ju-mong Na ) 전남대학교 지역개발연구소 2016 지역개발연구 Vol.48 No.1
현재 우리사회는 소득수준, 복지, 여가 등에 대한 기대수준이 향상되고 지방화, 분권화가 급속히 이루어지고 있다. 하지만 사회간접자본 시설에 대한 국민적 수요가 증가하는 데 반해 정부재정은 이러한 요구를 수용하기 어려운 상황에 처해있다. 이에대해 일본의 요코하마시는 민관파트너십을 통해 민간부문의자본, 지식, 노하우를 활용하여 민관협력사업의 효율과 효과를 증대시키며 사회기반시설을 확충·개수·운영·관리를 한다. 본 연구는 일본 요코하마시의 민관파트너쉽 사례를 소개하고 우리나라의 민관협력제도에 적용하는 데 도움을 주고자 한다. 이를 위해 일본의 PPP의 유형과 내용, 시설 소유, 자금조달, 수입측면, 행정개입정도, 도입사례를 살펴보았다. 일본의 민관파트너쉽은 지방정부에서의 적용성이 높고, 지역특성을 최대한 활용한 복합개발 및 수법의 다양성이 있으며, 사업의 명확한 역할정립으로 단기성과보다는 지속가능성을 고려하였다. 일본의 사례를 통해 PPP는 단순히 민간의 자본을 유치하여 사회기반시설을 조성하는 것에 그치지 않고 민간의 창의와 효율을 유입시키는 의의도 지닌다... In our current society, the level of expectation about income level, welfare, leisure, etc. has been elevated. In addition, localization and decentralization are other obvious features in this society. However, while public demands for ``SOC facilities`` are increasing, government finances cannot afford to accommodate these demands. To solve this problem, Yokohama city, Japan, uses public private partnerships(PPP). Private sector capital, knowledge, and know-how can help to increase efficiency and effectiveness of PPP projects, and through these partnerships Yokohama city has been able to expand and administer its infrastructure. This study introduces the case of a PPP in Yokohama city, Japan and also uses its implications to help S. Korea to apply Yokohama``s example to their PPP policy. In order to achieve this, our study investigates Yokohama``s PPP; the types and contents, facilities, funding, income, degree of administrative interventions, and cases of inducements. Some features of Yokohama``s PPP are as follows. It is easy to apply to local government. It makes the utmost use of regional characteristics which leads to mixed-use development and diversity of business. It allots each part a clear role in businesses for sustainability rather than short-term achievement. Through the case of Yokohama, we see that PPP has a significance not only for building up social infrastructure by attracting
조명 제어용 170W급 LLC 공진형 하프브리지 컨버터의 효율 특성
임성진(LIM Seongjin),김성완(KIM Sungwan),김창선(KIM Changsun),유진호(You Jinho),천승환(Cheon Seunghwan) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
In this paper, the 170W LLC half bridge DC-DC converter is designed for the lighting management system. The power conversion circuit consists of PFC and isolated LLC resonant converter. The topology of LLC half bridge resonant converter provides ZVS characteristic. And the stresses of voltage and current is smaller than that of the general resonant converters. So we can expect the higher efficiency. The optimal conditions for high efficiency were investigated through by experiment.