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임성진(Sungjin Lim),박근수(Kunsoo Park) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅰ
사전식 압축 방식이라 불리는 LZ-압축은 빠르고도 좋은 압축률을 가지고 있기 때문에 널리 이용되고 있다. 그래서 LZ-압축 방식을 이미지 압축에 적용하는 시도가 이루어지고 있으나 아직 명확하게 정의가 이루어지지 않거나, 정확한 실험 결과가 제시되지 않은 경우가 많다. 이 논문에서는 기존의 정사각형을 시용한 압축 과정 중 다소 모호했던 파싱 과정을 명확히 하며, 매칭에 사용된 정사각형들이 겹쳐지는 비율에 관한 확률적 분석 및 실험 결과를 제시한다. 또한 Test Image Set에 관한 정확한 압축률을 제시한다. 특히 이 논문은 정사각형들이 겹쳐지는 비율에 관한 최초의 확률적 분석을 제시하고 있다.
비교란 Lysimeter를 활용한 논 토양에서의 살충제 Carbosulfan 용탈특성 구명
임성진 ( Sungjin Lim ),오영탁 ( Youngtak Oh ),김남희 ( Namhee Kim ),양지연 ( Jiyeon Yang ),최근형 ( Geunhyoung Choi ),류송희 ( Songhee Ryu ),문병철 ( Byeongchul Moon ),박병준 ( Byungjun Park ) 한국환경농학회 2016 한국환경농학회 학술대회집 Vol.2016 No.-
This study was conducted to investigate the leaching characteristics of insecticide carbosulfan using undisturbed lysimeter. Soil horizons of sandy loam, loam, and silty clay loam lysimeter were composed of 6, 6, and 5, and clay contents were ranged from 53.1-63.2, 40.2-47.7, and 32.6-39.2 %, respectively. Bulk densities of each lysimeter were 1.38, 1.30, and 1.35 Mg/m3, respectively. Carbosulfan was treated to each lysimeter at 14 days after rice planting, and water was supplied according to rice cultivation method. Pore volumes of sandy loam, loam, and silty clay loam lysimeter were calculated to 718.9, 764.2, and 735.9 L, and pore volume numbers of supplied water for rice cultivation were 2.1, 1.6, and 1.3, respectively. Movement of carbosulfan in each lysimeter was investigated through the residue of carbosulfan in 30, 55, 85, and 125 cm soil water from topsoil and leaching water. Liquid chromatography (LC)-mass spectrometry (MS)-MS was used for carbosulfan analysis in water sample. Recovery and limit of quantitation (LOQ) of carbosulfan in water were 101.1-106.4% and 50 ng/L. Changes of moisture tension, humidity, and temperature in sandy loam, loam, and silty clay loam lysimeter was not significantly different. Weight of silty clay loam lysimeter was higher than other lysimeter because of less leaching. Leaching volume decreased with increasing clay content of paddy soil, and the volume of sandy loam, loam, and silty clay loam lysimeter were 1964.7, 1868.4, and 1265.6 L, respectively. Total leaching content of carbosulfan (treatment content 1541 mg) during experiment period in sandy loam, loam, and silty clay loam lysimeter were 30.7, 19.4, 23.5 ng, respectively. The content in three lysimeter was not significantly different. However, carbosulfan in soil horizon of sandy loam, loam, and silty clay loam paddy soil were detected at 2222.1, 2146.0, and 166.3 ng, respectively. These results showed that the movement of carbosulfan in sandy loam, loam, and silty clay loam paddy soil was very low, and the movement in silt clay lam paddy soil was relatively lower than sandy loam and loam paddy soil.
비교란 Lysimeter를 활용한 밭 토양에서의 살균제 Flutolanil 용탈특성 구명
임성진 ( Sungjin Lim ),박정훤 ( Jeonghwon Park ),오영탁 ( Youngtak Oh ),주형곤 ( Hyeonggon Joo ),이민호 ( Minho Lee ),윤효인 ( Hyoin Yoon ),최근형 ( Geunhyoung Choi ),류송희 ( Songhee Ryu ),박병준 ( Byungjun Park ) 한국환경농학회 2018 한국환경농학회 학술대회집 Vol.2018 No.-
This study was conducted to investigate the leaching characteristics of fungicide flutolanil in paddy soil using undisturbed lysimeter. Soil horizons of sandy loam, loam, and silty clay loam lysimeter were composed of 6, 6, and 5, and clay contents were ranged from 53.1-63.2, 40.2-47.7, and 32.6-39.2 %, respectively. Bulk densities of each lysimeter were 1.38, 1.30, and 1.35 Mg/m3, respectively. Flutolanil was treated to each lysimeter at 15 days after rice planting, and water was supplied according to rice cultivation method. Pore volumes of sandy loam, loam, and silty clay loam lysimeter were calculated to 718.87, 764.15, and 735.85 L, and pore volume numbers of supplied water for rice cultivation were 0.98, 1.08, and 0.24, respectively. Movement of flutolanil in each lysimeter was investigated through the residue of it in 30, 55, 85, and 125 cm soil water from topsoil and leaching water. Gas chromatography (GC) was used for flutolanil analysis in water sample. Recovery and limit of quantitation (LOQ) of flutolanil in water were 72.8-84.0% and 3 μg/L. Changes of moisture tension, humidity, and temperature in sandy loam, loam, and silty clay loam lysimeter was not significantly different during experiment period. Weight of silty clay loam lysimeter was higher than other lysimeter because of less leaching. Leaching volume of sandy loam, loam, and silty clay loam lysimeter were 705.9, 828.7, and 174.5 L, respectively. Total leaching content of flutolanil (treatment content 770.57 mg) during experiment period in sandy loam, loam, and silty clay loam lysimeter were 5.66, 15.76, and 21.05 mg, respectively. These results showed that the movement of flutolanil in sandy loam and silty clay loam paddy soil was high.
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 ( Sungjin Lim ),오영탁 ( Youngtak Oh ),구명화 ( Myounghwa Ku ),주형곤 ( Hyeonggon Joo ),이민호 ( Minho Lee ),윤효인 ( Hyoin Yoon ),최근형 ( Geunhyoung Choi ),류송희 ( Songhee Ryu ),박병준 ( Byungjun Park ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
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 mg/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 mg/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.
임성진(Sungjin Lim),원명주(Myoungju Won),황민철(Mincheol Whang) 한국HCI학회 2014 한국HCI학회 학술대회 Vol.2014 No.2
본 연구는 사람들에게 알려진 유명인에 대한 공감정도에 눈이 어떤 영향을 미치는지를 평가하고자 하였다. 두 사람간의 인터랙션 내에서 확인할 수 있는 감성, 즉 사회감성 중 공감도를 눈을 통해 확인하고자 하였다. 최근 감성 판별을 위해 얼굴 전체 패턴을 연구하는 사례는 많으나, 눈에 집중한 연구는 아직 미비한 상태이다. 본 연구는 주관설문을 통해 평가하였고, 공감하는 정도와 감성 판단에 영향을 미치는 영역에 대한 질문을 제시하였다. 120 명의 피험자가 참여하였으며, 자극으로 제시된 사진은 인지도가 높은 유명인, 낮은 유명인, 일반인으로 남녀 각각 2 명씩이고, 그 결과 사람들에게 잘 알려진 유명인일 수록 그 사람의 눈을 통한 공감도가 높았으나, 시선이 머무는 영역이나 시간은 큰 차이를 보이지 않았다. 이러한 세부적인 사항은 실감적 요인이 적용될 수 있는 아바타나 미래의 로봇, 가상현실 컨텐츠를 구현하여 효과적인 서비스를 제안 할 수 있을 것이다. The aim of this study was to investigate the decision elements of emotion through eye expression. The study is focused to find the empathy emotion through eye. To distinguish the level of the empathy, a questionnaire was designed to analyze difference among three groups; well-known, known and unknown group. Participating in the study were 150 respondents. In this paper, we analyzed the result to verify that the well known’s eyes effected to feel empathy more than unknown’s. This study is expected to apply marketing system using the expression of eye’s, efficient service of emotional avatar or robot, virtual reality system.