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W/O 에멀젼의 주요 구성 성분들이 모사 헤미셀룰로오스 가수분해액에 있는 초산의 제거에 미치는 영향
임성진 ( Sung Jin Lim ),이상철 ( Sang Cheol Lee ) 한국화학공학회 2014 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.52 No.6
Acetic acid is the most abundant and serious ethanol fermentation inhibitor in dilute-acid hemicellulosic hydrolysates. A mixture of xylose, acetic acid and sulfuric acid was chosen as a simulated hemicellulosic hydrolysate so as to find an optimal separation system to selectively remove acetic acid from the hydrolysates. In order to attain the purpose, emulsion liquid membrane was applied to removal of acetic acid from the simulated hemicellulosic hydrolysate. The effects of main constituents of water-in-oil (W/O) emulsion, such as amine extractant type, surfactant composition, additive type, and type and concentration of stripping agent, on extraction of acetic acid, xylose, and sulfuric acid in the simulated hemicellulosic hydrolysate were investigated. Under specific experimental conditions, degree of extraction of acetic acid was higher than 95% while loss of xylose was insignificant, which means that the current emulsion liquid membrane can be an economically feasible process.
유류저장시설 인근 농경지 중 Benzene, Toluene, Ethylbenzene 및 Xylene (BTEX) 잔류량 모니터링
임성진 ( Sung Jin Lim ),김진효 ( Jin Hyo Kim ),최근형 ( Geun Hyoung Choi ),조남준 ( Nam Jun Cho ),홍진환 ( Jin Hwan Hong ),박병준 ( Byung Jun Park ) 한국환경농학회 2014 한국환경농학회지 Vol.33 No.4
BACKGROUND: Benzene, toluene, ethylbenzene and xylene (BTEX), which are volatile aromatic hydrocarbons and main constituents of gasoline, are neuro.carcinogenic organic pollutants in soil and groundwater. Korea Ministry of Environment has established the maximum permissible level of BTEX in arable soil to 1, 20, 50 and 15 mg/kg, respectively. METHODS AND RESULTS: To understand an arable soil contamination by BTEX, we collected 92 samples from the arable lands around oil reservoir, and analyzed the BTEX residue using a GC.MS with head.space sampler. A linear correlation between BTEX concentration and peak areas was detected with coefficient correlations in the range of 0.9807.0.9995. The method LOQ of BTEX was 0.002, 0.014, 0.084, and 0.038 mg/kg, respectively. Recoveries of 0.5 mg/kg BTEX were found to be 73.7.96.9%. The precision was reliable since RSD percentage (0.7.7.5%)was below 30, which was the normal percent value. Also, BTEX in all samples were detected under the LOQ. CONCLUSION: These results showed that the investigated arable soils around airport and oil reservoir in Korea were not contaminated by oils.
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.
포도 및 복숭아 과수원 토양 및 과실 중 잔류성유기염소계 농약류 잔류량 조사
임성진(Sung-Jin Lim),박정훤(Jeong-Hwon Park),노진호(Jin-Ho Ro),오영탁(Young-Tak Oh),주형곤(Hyeong-Gon Joo),이민호(Min-Ho Lee),윤효인(Hyo-In Yoon),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),박병준(Byung-Jun Park) 한국농약과학회 2018 농약과학회지 Vol.22 No.4
This study was conducted to investigate residual organochlorine pesticides in grape and peach orchard and fruits. Extraction and clean-up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in orchard soil and fruits. Recovery and limit of detection (LOD) of ROCPs in soil and fruits were 76.4-101.2 and 76.4-90.4%, 0.01-0.08 and 0.2-0.4 μg/kg, respectively. Detected ROCPs in grape and peach orchard soil was 2,4-DDT, 4,4-DDE, 4,4-DDT, and endosulfan sulfate, the residues were 3.3, 2.3-7.1, 4.5, and 19.2-73.4 μg/kg, respectively. But four pesticides in all fruit samples were not detected. These results showed that ROCPs residues in grape and peach orchard soil had no effect on safety of agricultural products.
LC-QTOF-MS를 활용한 현미 중 동물용의약품의 정량 분석
임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),노진호(Jin-Ho Ro),주형곤(Hyeong-Gon Joo),이민호(Min-Ho Lee),윤효인(Hyo-In Yoon),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),김단비(Dan-Bi Kim),박병준(Byung-Jun Park) 한국농약과학회 2017 농약과학회지 Vol.21 No.3
SPE cartridge clean-up method for simultaneous determination of veterinary pharmaceuticals (VPs) in brown rice was developed and validated by LC-QTOF-MS. The clean-up method was established with HLB (500 mg, 6 mL) cartridges for VPs in brown rice, and the eluate was analyzed to quantify the compounds by LC-QTOF-MS. The developed method was validated, and the recovery, RSD, and LOQ of VPs were 70.3-112.0%, 1.1-5.7%, and 0.076-7.6 μg/kg, respectively. These results showed that the developed method for simultaneous determination of VPs contribute to monitoring of it in agricultural environment and agriculture product.
농업용수 중 잔류성유기염소계 농약류의 잔류량과 수서생물 영향 평가
임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),김승용(Seung-Yong Kim),노진호(Ji n-Ho Ro),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),김상수(Sang-Su Kim),박병준(Byung-Jun Park) 한국농약과학회 2017 농약과학회지 Vol.21 No.2
This study was conducted to investigate residual organochlorine pesticides (OCPs) in agricultural waters. Extraction and clean-up method were developed using the liquid-liquid extraction for OCPs in water. Limit of detection (LOD), recovery, and relative standard deviation (RSD) of OCPs and in agricultural waters ranged from 0.001-0.004 μg/L, 73.7-110.9%, and 0.9-4.2%, respectively. The residues of OCPs in agricultural water were analyzed by the developed method, and α-endosulfan, β-endosulfan, and endosulfan sulfate were detected at 0.11-0.18, 0.08-0.12, and 0.11-0.13 μg/L, respectively. The detection number of three compounds in agricultural water were 8 (9.1%), 10 (11.4%), and 20 (22.7%) among 88 samples, respectively. These results showed that endosulfans were detected in agricultural waters and the continuous monitoring of them will be conducted.
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
국내에 사용되어 금지된 유기염소계 농약류의 다중분석법과 모니터링
임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),양지연(Ji-Yeon Yang),노진호(Jin-Ho Ro),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),문병철(Byeong-Chul Moon),박병준(Byung-Jun Park) 한국농약과학회 2016 농약과학회지 Vol.20 No.4
This study was conducted to investigate residual organochlorine pesticides in green house soil and oriental melon, green pepper, and lettuce. The majority of them were designated as persistent organic pollutants (POPs) by the international community at the Stockholm Convention on Persistent Organic Pollutant. Extraction and clean-up method were developed using the QuEChERS method for residual organochlorine pesticides (OCPs) in soil and oriental melon, green pepper and lettuce. Recovery of OCPs in greenhouse soil and oriental melon, green pepper, and lettuce ranged from 73.3-110.6%. Limit of detection (LOD) of OCPs in soil and 3 crops were 0.01-0.08 and 0.11-0.17 μg/kg. The residues of OCPs in oriental melon, green pepper and lettuce greenhouse soil were analyzed by the developed method, and dieldrin, β-endosulfan and endosulfan sulfate were detected at 1.4-72.5, 0.1-78.7 and 0.0-214.1 μg/kg, respectively. The detection frequency of 3 compounds in soils were 52 (29.7%), 34 (19.4%) and 57 (32.6%) among 175 samples, respectively. However, these compounds were not detected in all crop samples. The residue level in 3 crops were lower than 1/58.8 of maximum residue level of them. These results showed that the OCPs residue in oriental melon, green pepper, and lettuce greenhouse soil were not as high as crop safety threatening.
임성진(Sung-Jin Lim),이강수(Kang-Soo Lee),정혜란(Hye-Ran Jung),김영근(Young-Geun Kim),송미선(Mi-Sun Song),조재영(Jae-Young Cho) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.6
전라북도 장수군 오미자 자생지 토양 및 환경특성을 평가하기 위해 식생, 입지환경 및 토양조사를 수행한 결과는 다음과 같다. 오미자는 고도 500~700 m의 준산간지 산록 북서쪽 방향의 계곡에 자생하고 있으며, 경사도는 17.6~36.4%, 토층은 마사토와 부엽토가 쌓여 배수가 용이한 지반이 형성된 지역에 주로 분포하는 것으로 나타났다. 오미자 자생지 식물상은 34과 55종으로 나타났다. 갯버들은 거의 모든 조사지점에서 분포하였으며, 칡, 싸리, 옻나무, 쑥과 같은 식물의 세력이 자생지 내에서 왕성한 것으로 나타났다. 오미자 자생지 토양의 화학적인 지표는 우리나라 일반 오미자 인공재배 토양과 비교시 식물영양물질이 풍부하고 완충능력이 더 우수한 것으로 조사되었다. 따라서 오미자 인공재배 적지 분석 및 기후변화에 따른 재배지역 이동에 따른 재배기술 확립시 자생지 토양특성을 고려한 합리적인 토양관리가 필요할 것으로 판단된다. This study was carried out to investigate soil and environment characteristics of Schizandra Chinensis Baillon habitat as a part of establishment of conservation plan for important medicinal crop resources in Jangsu-gun, Jeollabuk-do. These habitats are mostly located on the slopes of mountains facing northwest at an altitude of 500 m to 700 m with angles of inclination ranging from 17.6 to 36.4%. Average yearly precipitation and temperature of Schizandra Chinensis Baillon habitat were 1,493.4 mm and 16.9℃, respectively. The number of plant species growing in Schizandra Chinensis Baillon habitat was found 55 species. Salix gracilistyla, Lespedeza bicolor, and Artemisia princeps var. were shown higher density and coverage. Chemical quality of Schizandra Chinensis Baillon habitats soils was relatively higher than artificial cultivation soil.