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Acidithiobacillus ferrooxidans와 Acidithiobacillus thiooxidans를 활용한 고농도 비소 함유 광석 내 중금속 용출 거동 연구
김가희,김리나,김관호,유광석,Kim, Gahee,Kim, Rina,Kim, Kwanho,You, Kwang-suk 한국자원리싸이클링학회 2021 資源 리싸이클링 Vol.30 No.2
To investigate the potential for leaching of heavy metals by bacteria from ores stacked on actual mining sites, leaching tests of a complex metallic ore (Pb-Zn-As ore) were conducted over 60 days using acidophile bacteria Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans under initial acidic conditions. Initially, a small amount of heavy metals was leached due to the initial acidic conditions. After 20 days, when A. thiooxidans in the reactor was adapted to the ore, the amount of leached heavy metals rapidly increased; the concentrations of leached arsenic, iron, and zinc reached a maximum of 2800, 3700, and 2500 mg/L, respectively. On the other hand, in the presence of A. ferrooxidans or in the control test without bacteria, heavy metals, except zinc, were barely detected in leaching. Through this study, it was confirmed that (i) bacteria could leach heavy metals at mining sites under acidic conditions and (ii) leaching of heavy metals from a high arsenic-containing ore by A. thiooxidans was more significant than that by A. ferrooxidans.
한국관련 내외신기사의 제목 및 내러티브 비교분석: 미군 성폭력사건 관련 기사를 중심으로
김가희 ( Kim¸ Gahee ),박은숙 동국대학교 영어권문화연구소 2014 영어권문화연구 Vol.7 No.1
The purpose of this paper is to compare and analyze the headlines and the narratives of the domestic and foreign news articles related with the U.S. soldier's rape case. The basic premise of this study shows that there are distinct differences between domestic and foreign news reports on the basis of same case that was happened in Korea. The information on the verdict of this rape case is the point to be specially considered. That is, this can be a good opportunity to closely examine news frames and narratives of domestic and foreign news writing. Especially the contents of the verdict of this case are expected to be translated faithfully to the original. To do this, this study compared and analyzed two domestic and two foreign news articles. One of two foreign articles was based on the news report contributed by Yonhap News Agency. The other does not have any stakes in this case considering the place where it happened is Korea and the sex offender was the U.S. soldier on duty. The study is introducing ‘Institutional Translation’ which has not been studied through and through in order to help to figure out why different news sources translate information in various ways.
김가희 ( Gahee Kim ),이병숙 ( Byoungsook Lee ) 아시아문화학술원 2018 인문사회 21 Vol.9 No.5
본 연구는 초점집단 면담과 질적내용분석을 적용하여 간호사-의사 협력에 대한 당사자들의 인식을 기술하고 이해하기 위한 연구이다. 연구 참여자는 대학병원에 근무 중인 10명의 간호사와 8명의 의사이다. 질적내용분석은 간호사-의사 협력의 의미, 영향 요인, 그리고 협력의 중요한 상황의 세주제를 중심으로 이루어졌다. 연구결과, 세 주제는 7개의 범주, 16개의 하위범주 및 32개의 주요 개념으로 범주화되었다. 이 중 간호사-의사 협력의 의미에는 함께 환자를 돌보는 것과 동반자 관계를 형성하는 것의 두 범주가, 영향 요인에는 서로에 대한 인식과 태도, 지지적 업무환경 및 전문인으로서의 역량과 의식의 세 범주가, 협력이 중요한 상황에는 문제 상황에서 효과적인 대처가 필요할 때와 대상자가 의료서비스의 문제를 제기할 때의 두 범주가 포함되었다. 결론적으로 참여자들에 있어 간호사-의사 협력은 파트너십을 가지고 함께 환자를 돌보는 것으로서 직무환경과 당사자들의 역량 및 태도에 영향을 받으며, 환자의 문제 상황에서 특히 중요함을 알 수 있었다. This study aimed to describe and understand nurses' and physicians' perceptions about nurse-physician collaboration. Focus group interviews and a qualitative content analysis were used for this study. The participants of four focus group interviews were ten nurses and eight physicians working at an university hospital. Three themes for the interview questions were for data collection and analysis. Seven categories, 16 subcategories, and 32 concepts were extracted. Theme of the meaning of nurse-physician collaboration had two categories, caring patients together and making partnership. Theme of the influencing factors for the collaboration had three categories, perception and attitude toward each other, supportive work environment, and competences and spirit as a professional. Theme of the important situations for the collaboration had two categories, when the problem situation needs effective management and when the clients claim problems or insufficiency of the services. In conclusion, the participants perceived the nurses-physician collaboration as the efforts of caring patients together with partnership and being influenced by work environments and the competences and attitudes of the professionals. The collaboration was particularly important in the situations of patients’ serious problems.
일부 중학생의 생활습관, 식습관, 음식 선호도 및 섭취빈도가 단맛의 민감도와 최적당도에 미치는 영향
김가희(Kim Gahee),이홍미(Lee Hongmie) 韓國營養學會 2007 Journal of Nutrition and Health Vol.40 No.6
This study was conducted to determine factors affecting detection threshold and the optimally-preferred concentration for sweet taste, since investigation into factors decreasing sensitivity or increasing preference for sweet taste is important to prevent overconsumption of simple sugar. Subjects were 70 first-grade middle school students in the Gyeonggi-Do. The detection threshold concentration of sucrose solution and the optimally-preferred sucrose concentration of omija jelly were determined by sensory evaluation. A self-administered questionnaire was used to obtain the information regarding health-related lifestyle practices, dietary habits, preference for and eating frequency of Westernized foods and frequencies of eating foods other than home-made. The detection threshold concentration of sucrose solution and the optimally-preferred sucrose concentration of omija jelly of the subjects were 0.204% and 14.44%, respectively. Subjects who exercise less (< 30 minutes/week except PE class), skipping meals (≥ 3/week), type of breakfast rather than traditional Korean meal and frequent eating out and buying foods from school tuck-shop tended to have higher sweet taste threshold. There was significant positive correlation between the sucrose threshold concentration and fried chicken preference or eating frequency of hamburger. Those who exercise less (< 30 minutes/week except PE class) did have significantly higher optimally-preferred sweetness of omija jelly, which tended to be higher in the subjects who had more (≥ 4 out of 10) behavioral or psychological stress symptoms and who had early getting-up time (before 7 am). There was significant positive correlations between the optimally-preferred sweetness of omija jelly and pizza preference, instant noodle eating frequency or sum of eating frequencies of five fast foods. From the results of this study, it was suggested that middle school students should make efforts to stop skipping meals, exercise more, eat Korean traditional breakfast and reduce the frequencies of eating out and using instant/fast foods in order to prevent overconsumption simple sugar.
비료제조업의 국내와 EU 최적가용기법 기준서 비교·분석
서경애,김가희,김은석,석희정,신수정,김영란,강필구,Seo, Kyungae,Kim, Gahee,Kim, Eunseok,Seok, Heejeong,Shin, Sujeong,Kim, Younglan,Kang, Philgoo 한국환경과학회 2020 한국환경과학회지 Vol.29 No.3
The integrated permit system is applied to class 1 and 2 atmospheric and water pollutant discharge facilities in 19 sectors. The fertilizer sector should receive a permit for a period of four years, from 2019 to 2023. The purpose of this study is to investigate the differences between the Korean Best Available Techniques (BAT) reference document (K-BREF) and the European Union BAT reference document (EU-BREF) in terms of the process and emission characteristics of fertilizer manufacture. K-BREF is written by focusing on products, whereas EU-BREF is produced on focusing on manufacture process. There are five types of BATs(best available techniques economically achievable) in Korea. These BATs selected mainly to recover and reuse raw meterials and save energy. The number of BATs and BAT-AELs(BAT associated emission level) in K-BREF is smaller than that in EU-BREF. We suggest that BATs and those environmental management parameters in Korea need to further reflect the emission characteristics in the fertilizer sector.