http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
연구논문 : 유통 절임배추의 중금속, 잔류농약 및 식중독 안전성 조사
정선옥 ( Sun Ok Jung ),정지헌 ( Ji Hun Jung ),김성단 ( Sung Dan Kim ),이현경 ( Hyun Yung Lee ),박성규 ( Sung Kyu Park ),이병훈 ( Byung Hun Lee ),이정숙 ( Jeong Sook Lee ),김수진 ( Soo Jin Kim ),김동규 ( Dong Gyu Kim ),유인실 ( In 한국식생활문화학회 2015 韓國食生活文化學會誌 Vol.30 No.6
In recent years, consumers have become more interested in convenient lifestyles, leading to increased use of salted cabbages for preparation of kimchi. This study aimed to investigate the safety of heavy metals, pesticide residues, and foodborne pathogens in commercial salted cabbages in Seoul from August to November, 2014. The survey, which was conducted to determine whether or not salted cabbages were prepared under the highest sanitary conditions, showed that Seoulites are interested in purchasing hygienic and safe salted cabbages. The average amounts (range) of Pb and Cd found in 30 salted cabbage samples were 0.007 (0.000~0.063) mg/kg and 0.004 (0.000~0.012) mg/kg, respectively. The cabbages were analyzed for residues from 285 types of pesticides using the multiresidue method. Residues for pesticides were not detected. Major foodborne pathogens, specifically Escherichia coli, Salmonella spp., Listeria monocytogenes, Campylobacter jejuni, Staphylococcus aureus, Vibrio parahaemolyticus, Enterohemorrhagic Escherichia coli, Bacillus cereus, Clostridium perfringens and Norovirus, were also not detected.
정선옥 ( Sun-ok Jung ),이춘영 ( Chun-yeong Lee ),류회진 ( Hoe-jin Ryu ),최희진 ( Hee-jin Choi ),김지영 ( Ji-young Kim ),최채만 ( Chae-man Choi ),황인숙 ( In-sook Hwang ),신용승 ( Yong-seung Shin ) 한국산업보건학회 2023 한국산업보건학회지 Vol.33 No.1
Objectives: In this study, the safety of alcohol-based hand sanitizers (ABHSs) for quasi-drugs and cosmetics was investigated by analyzing the ethanol content, which is an active ingredient with a sterilizing effect, and methanol, which is toxic. Methods: Forty-one ABHSs were purchased at large supermarkets and online stores. Ethanol quantification was performed by gas chromatography-flame ionization detector, and methanol quantification was performed by headspace-gas chromatography-mass spectrometry. Results: The ethanol content of ABHS in quasi-drugs was 49.6-67.8%, which was suitable for standard manufacturing procedures for external disinfectants, and the ethanol content of ABHS in cosmetics was 9.1-61.3%. The methanol content of ABHS in quasi-drugs ranged from not detected(N.D.)-131.8 ppm, which was suitable for the methanol detection standard of ethanol raw materials in the Korean Pharmacopoeia. The methanol content of ABHS in cosmetics was 23.4-859.7 ppm, which was suitable for the detection limit of methanol in cosmetics. Conclusions: The ethanol and methanol content of ABHS was judged to be safe. When selecting an ABHS to be used for sterilization, it seems necessary to check the content of ethanol, an active ingredient, and use it according to its intended purpose.
Effect of light illumination and camera moving speed on soil image quality
정선옥,조기현,정기열,Chung, Sun-Ok,Cho, Ki-Hyun,Jung, Ki-Yuol Institute of Agricultural Science 2012 Korean Journal of Agricultural Science Vol.39 No.3
Soil texture has an important influence on agriculture such as crop selection, movement of nutrient and water, soil electrical conductivity, and crop growth. Conventionally, soil texture has been determined in the laboratory using pipette and hydrometer methods requiring significant amount of time, labor, and cost. Recently, in-situ soil texture classification systems using optical diffuse reflectometry or mechanical resistance have been reported, especially for precision agriculture that needs more data than conventional agriculture. This paper is a part of overall research to develop an in-situ soil texture classification system using image processing. Issues investigated in this study were effects of sensor travel speed and light source and intensity on image quality. When travel speed of image sensor increased from 0 to 10 mm/s, travel distance and number of pixel were increased to 3.30 mm and 9.4, respectively. This travel distances were not negligible even at a speed of 2 mm/s (i.e., 0.66 mm and 1.4), and image degradation was significant. Tests for effects of illumination intensity showed that 7 to 11 Lux seemed a good condition minimizing shade and reflection. When soil water content increased, illumination intensity should be greater to compensate decrease in brightness. Results of the paper would be useful for construction, test, and application of the sensor.
Effect of light illumination and camera moving speed on soil image quality
Sun-Ok Chung(정선옥),Ki-Hyun Cho(조기현),Ki-Yuol Jung(정기열) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.3
Soil texture has an important influence on agriculture such as crop selection, movement of nutrient and water, soil electrical conductivity, and crop growth. Conventionally, soil texture has been determined in the laboratory using pipette and hydrometer methods requiring significant amount of time, labor, and cost. Recently, in-situ soil texture classification systems using optical diffuse reflectometry or mechanical resistance have been reported, especially for precision agriculture that needs more data than conventional agriculture. This paper is a part of overall research to develop an in-situ soil texture classification system using image processing. Issues investigated in this study were effects of sensor travel speed and light source and intensity on image quality. When travel speed of image sensor increased from 0 to 10 ㎜/s, travel distance and number of pixel were increased to 3.30 ㎜ and 9.4, respectively. This travel distances were not negligible even at a speed of 2 ㎜/s (i.e., 0.66 mm and 1.4), and image degradation was significant. Tests for effects of illumination intensity showed that 7 to 11 Lux seemed a good condition minimizing shade and reflection. When soil water content increased, illumination intensity should be greater to compensate decrease in brightness. Results of the paper would be useful for construction, test, and application of the sensor.
박태일,정선옥,김영진,김현순,서재환,박기훈,김정곤,윤성중,Park, Tae-Il,Jeoung, Sun-Ok,Kim, Young-Jin,Kim, Hyun-Soon,Seo, Jae-Hwan,Park, Ki-Hun,Kim, Jung-Gon,Yun, Song-Joong 한국식물생명공학회 2007 식물생명공학회지 Vol.34 No.3
Barley anther culture is hard working to plating picking out anther from the glume and demand long time comparing to be short available development stage for effective culture. Also, it has been treatment massive materials due to low plantlet comparing to get desirable plants intensively. Consequently, this experiment was carried out trying to be more high barley anther culture effectively in terms of save plating effort. Plating materials and culture temperature affected anther culture efficiency are among the inoculation tissues or organs such as anthers, spikelets and whole panicles, culture efficiency was higher with spikelets in two-rowed than six-rowed barley due primarily to a lower contamination, and calli were induced within 30 to 50 days. Callus induction and plant regeneration rates were higher in cultures at $25^{\circ}C$ than at $15^{\circ}C$ and $20^{\circ}C$. Days to callus induction were 25 to 50 days at $25^{\circ}C$ and 50 to 60 days at $20^{\circ}C$.
모델 전공 대학생들에게 내재된 자기결정성,정서조절능력, 진로탄력성의 관계
박순희(Sun-Hee Park),정선옥(Sun-Ok Jung) 학습자중심교과교육학회 2024 학습자중심교과교육연구 Vol.24 No.2
목적 이 연구는 모델 전공 대학생들에게 내재된 자기결정성, 정서조절능력, 진로탄력성의 관계를 알아보기 위해 실시하였다. 방법 이를 위하여 국내 대학 모델 전공 대학생 206명(남자: 74명, 여자: 132명)이며, 편의표본추출법을 활용해 표본을 취합하였다. 이후 취합된 자료는 SPSS 22.0과 AMOS 21.0을 통해 빈도분석(frequency analysis), 기술통계(descriptive statistics), 탐색적 요인분석(exploratory factor analysis), 확인적 요인분석(confirmatory factor analysis), 내적 일관성계수((Cronbach's α) α), 상관관계(correlation analysis), 경로분석(path analysis), Hayes(2013)의 PROCESS macro 매개모형(mediation) 검증 기법을 활용한 부트스트래핑(bootstrapping)을 통해 매개효과 검증을 실시하였다. 모든 통계적 유의성은 α=.05를 기준으로 설정하였다. 결과 첫째, 관계성과 유능감이 정서조절능력에 정적인 영향을 미쳤다. 둘째, 관계성과 정서조절능력이 진로탄력성에 정적인 영향을 미쳤다. 셋째, 정서조절의 매개효과 검증에서는 관계성, 유능감과 진로탄력성의 관계에서 정서조절이 매개효과가 있음을 확인하였다. 결론 모델과(科) 대학생들의 유연한 진로변경과 진로 변경 적응력 향상을 위해 정서조절 관리와 긍정적인 대인관계 형성 함양에 대한 다각적인 논의가 필요함을 시사한다. Objectives This research was conducted to explore the relationship between Self-Determination, emotional reg-ulation ability, and career resilience among model major university students. Methods This research was conducted to explore the relationship between Self-Determination, emotional regu-lation ability, and career resilience among model major university students. The collected data were then analyzed using SPSS 22.0 and AMOS 21. The data were analyzed using frequency analysis, descriptive statistics, ex-ploratory factor analysis, confirmatory factor analysis, internal consistency coefficient ((Cronbach's α)α), correla-tion analysis, path analysis, and bootstrapping using Hayes' (2013) PROCESS macro mediation test technique. All statistical significance was set at α=.05. Results The results are as follows: First, connectedness and competence had a positive influence on emotional regulation ability. Second, connectedness and emotional regulation ability had a positive influence on career adaptability. Third, in the mediation analysis of emotional regulation, it was confirmed that emotional regulation played a mediating role in the relationship between connectedness, competence, and career adaptability. Conclusions These findings highlight the importance of multidimensional discussions on emotional regulation management and fostering positive relationships for enhancing the flexible career development of model major university students.