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박상일,정경훈,김해연,백계진,Park San Ill,Cheong Kyung Hoon,Kim Hai Yeon,Paik Ke Jin 한국환경보건학회 2005 한국환경보건학회지 Vol.31 No.4
The purpose of this investigation was to evaluate removal efficiency of $NH_4-N$ using the soil column. Soil, oyster shell and natural zeolite were used as a supporting media of soil column. Removal efficiencies of $NH_4-N$ were $35.9\%,\;41\%\;and\;93.4\%$ for the soil column packed with soil, natural $zeolite(20\%)$ and oyster $shell(20\%)$ at HRT of 72 hours, respectively. The addition of $20\%$ oyster shell to the soil accelerated nitrification in soil column. The influent ammonia nitrogen was mostly converted to nitrate nitrogen in the soil column and little ammonia nitrogen was found in the effluent. When the influent $NH_4-N$ concentration was 200 mg/l, the NIL-N removal was decreased at HRT of 48 hours, while nitrification was significantly increased after mechanical aeration. It was suggested that nitrification from higher $NH_4-N$ concentration was more affected by aeration in soil column process. The number of nitrifiers was approximately in a level of about $10^6\;MPN/g{\cdot}soil$ in the soil column mixed with oyster shell ($20\%$).
04 포스터 발표 : 환경 화학 분야(PC) ; PC-02 : 쪽파 중 Cyhalothrin과 Diflubenzuron의 잔류 특성
박효경 ( Hyo Kyoung Park ),노현호 ( Hyun Ho Noh ),이재윤 ( Jae Yun Lee ),김진찬 ( Jin Chan Kim ),정혜림 ( Hye Rim Jeong ),이정우 ( Jung Woo Lee ),진미지 ( Me Jee Jin ),권찬혁 ( Chan Hyeok Kwon ),손영욱 ( Yoeng Uk Son ),경기성 ( Ke 한국환경농학회 2015 한국환경농학회 학술대회집 Vol.2015 No.-
이 연구는 우리나라 대표 조미 채소인 쪽파 중 cyhalothrin(1% EC)과 diflubenzuron(25% WP)잔류특성을 구명하여 소면적 재배 작물의 농약에 대한 안전성을 확보하기 위하여 수행하였다. 포장시험은 쪽파 전문 재배 단지인 충남 예산군 소재 시설단지 내 농가 포장을 임차하여 수행하였으며, 수확 21일전 7일 간격 2회 살포구 등 약제 살포일을 달리하여 4개의 처리구(21-14, 14-7, 10-3,7-0)를 배치하였다. Cyhalothrin과 diflubenzuron은 각각 1,000과 2,500배 희석하여 200 L/10a의 액량으로 살포하였으며, 수확 당일 살포한 처리구는 약제 살포 3시간 경과 후 시료를 채취하였다. 쪽파 중 cyhalothrin과 diflubenzuron의 검출한계는 각각 0.004와 0.02 mg/kg이었으며, 회수율은 각각 92.7-99.3과 84.4-96.1%이었다. 쪽파 중 cyhalothrin의 수확 21일전과 7일전 2회 살포 처리구의 잔류량은 각각 0.014-0.019와 0.248-0.299 mg/kg이었으며, diflubenzuron의 경우 각각 0.38-0.59와2.22-2.89 mg/kg으로 수확일에 근접한 농약 살포가 수확물 중 최종 잔류량에 큰 영향을 미치는 것으로 판단되었다. Lambda-cyhalothrin은 약제 살포 후 빠르게 감소한다는 선행 연구 결과와 유사하였으며(Seenivasan 등, 2009), diflubenzuron의 경우 광분해에 안정하고 가수분해가 거의 없는 물리화학적 특성 때문에 잔류량이 높았다고 판단되었다.
정구영,박성오,이계호,Chung, Koo-Young,Park, Sung-Oh,Lee, Ke-Ho 한국응용생명화학회 1980 Applied Biological Chemistry (Appl Biol Chem) Vol.23 No.4
Using Streptomyces chibaensis, which produces a strong inulin-hydrolyzing enzyme, the optimum cultural conditions and composition of the medium for the production of inulase were studied. 1. The highest enzyme activity was obtained at pH 7.5 after 84 hours culture at $30^{\circ}C$. 2. None of carbon source better than inulin was found. 3. $(NH_4)_2HPO_4$ and corn steep liquor were favourable inorganic and organic nitrogen sources for the production of inulase. 4. $KCl,\;MgSO_4\;and\;FeSO_4$ as the metallic salts were effective for the enzyme production at their concentrations of 0.01, 0.05 and 0.0001%, respectively. 5. The highest production of inulase was obtained from the medium of inulin 1.0% and corn steep liquor 2.0% concentrations, respectively. 강력(强力)한 inulin 분해력(分解力)을 가진 Streptomyces chibaensis균주(菌株)를 이용하여, 효소생산(酵素生産)에 효과적인 배양조건 및 배지조성을 검토(檢討)하여 다음과 같은 결과를 얻었다. 1. 효소생산배지(酵素生産培地)의 최적 초기 pH는 7.5였으며, 이 조건하에서 $30^{\circ}C$에서 84시간 배양했을 때 가장 높은 효소역가를 나타냈다. 2. Inulase를 다량생산(多量生産)하기 위한 배지의 탄소원(炭素源)으로서는 다른 탄소원(炭素源)에 비하여 inulin이 가장 효과적이었다. 3. 무기질소원(無機質素源)으로는 $(NH_4)_2HPO_4$가 inulase생산(生産)에 가장 효과적(效果的)이었고, 유기질소원(有機窒素源)으로는 corn steep liquor가 효과적(效果的)이었다. 4. 무기염(無機鹽)으로 KCI 0.01%, $MgSO_4$ 0.05%, 그리고 $FeSO_4$ 0.0001% 첨가하였을 때 가장 효과가 컸다. 5. 탄소원(炭素源)(inulin) 1%와 질소원(窒素源)(corn steep liquor) 2%의 비율(比率)로 혼합(混合)하여 만든 배지(培地)에서 가장 효소생산(酵素生産)이 높았다.
일부 경북지역 산업장의 제특성에 따른 건강진단과 보건관리 실태
김상순,김정남,박정,김옥란,차경미,곽오계,박경민,최연희,백경신,Kim, Sang-Soon,Kim, Jung-Nam,Park, Jung,Kim, Ok-Ran,Cha, Kyung-Mi,Kwak, Ou-Ke,Park, Kyung-Min,Choi, Yoon-Hee,Bak, Kyung-Shin 한국지역사회간호학회 1993 지역사회간호학회지 Vol.4 No.1
The purpose of this study was to find the status of health examination and health management of industrial companies located in Taegu and Kyung book areas. It will provide basic information for the provision of effective health management of industrial workers. 49 companies were selected as a study sample group, and data was collected by using a structured Questionnaire which was developed by the members of the Community Health Nursing Academy of Korean Nursing. The health managers of the companies filled out the Questionnaire. The data was gathered from Dec 20, 1992 to Jan 20. The results of the study was as follows : 1. The Study sample showed 85.7% manufacturing companies having 300 or more workers. 2. All the companies had health managers, and companies which had 1,000 or more workers had industrial physicians and nurses. Only 12.2% of the industrial physicians were full time employees, and almost all industrial nurses were full time employees. Except for industrial physicians and nurses, the proportion of hygienists (6.1%), nurses aids (4.1%), and environmental engineers (22.4%) with full time employment statuss was very low. The mean age of industrial physicians was 49.2 while that of industrial nurses was 27.2. The length of work experiences currently ranges for 1 to 3 years for all health workers: physicians, nurses, hygienists, and environmental engineers. 3. Health examination and follow up care 94.31% took general health examinations. Of those, the proportion of the workers, who were determined as C grade(in need of close examination) was 43.86%. The proportion of the workers who were determined as D grade was 22.19%. 13.28% of the workers evaluated at the D grade were taken as a gauge for temporary leave from work. While 8.7% and .09% of them were taken as gauge for a change in job, and or shortening work hours respectively. The proportion of workers who must have taken special examination was 65.04% and of those the proportion of the workers who actually took, the examination was 98.55%. 75% of the workers who were recommended for follow up care were given follow up care. The special examinations were done the most frequently to detect the effects of physical agents (59.2%). Direct notice to individual workers was used the most frequently as a method of notification after a special examination (61.2%). The length of time taken to receive the result of a special examination was less than 1 month (38.9%) and 36.7% had taken up to two months (36.7%.). Most results of special examination were obtained within 2 months. The referral rate of consulting special examination by health managers was estimated at 95.9%. 4. 89.8% of the companies had. their own company dispensaries and 75.5% of those. had separate dispensaries. 32.7% of the companies designated local clinics for health management of workers. Industrial nurses performed health examination the most frequently(1.4 points). Health appraisal for work places were. done the least(0.83 points).
알루미늄 부식을 적용한 활성슬러지법에서 질소 및 인 제거
최형일,정경훈,박상일,백계진,Choi Hyung Il,Cheong Kyung Hoon,Park Sang Il,Paik Ke Jin 한국환경보건학회 2005 한국환경보건학회지 Vol.31 No.2
A laboratory experiment was performed to investigate simultaneous removal of phosphorus and nitrogen from raw sewage by intermittently aerated activated sludge process packed with aluminum and silver plate. Two continuous experimental process, i.e. an intermittently aerated activated sludge process, and an intermittently aerated activated sludge process with an aluminum and silver plate packed into the reactor were compared. The pitting corrosion of aluminum does not affect the performance of the biological treatment. The amounts of Al eluted from aluminum plate 17 mg to 60.6 mg in this experimental conditions, and Al/P mole ratio were from 3.31 to 11.25. The total nitrogen removal efficiency in Run E were $60.6\%$ at the HRT of 12 hours. The effluent $PO_4-P$ concentration as low as $1.0\;mg/\iota$ could have been obtained during the continuous experiment in Run E at HRT of 12 hours.
남경동(Kyung Dong Nam),윤계숙(Ke Sook Yoon),정혜선(Hye Seon Chung),박순애(Soon Ae Park),장부영(Boo Young Jang),김혜란(Hye Ran Kim),엄현신(Hyun Sin Ohm),성영희(Young Hee Sung) 한국간호행정학회 2005 간호행정학회지 Vol.11 No.2
The Purpose of this study was to development a verbal abuse scale for operating room nurses in Korea, Method: To achieve the purpose of the study, a questionnaire was developed to interview 30 nurses and distributed to 761 nurses who working at 28 general hospital in Korea from september 7 to November 25, 2004. Item analysis and factor analysis were carried out to validate violence predicting scale. Cronbach`s Alpha coefficient was used to test reliability of the scale. The data were analyzed by using SPSS/WIN 11.5 program. Result: As a result of the item analysis and factor analysis, 17 items were selected from the total of 30 items, and four factors were labeled as ``self esteem abuse by nurses(7 items)``, ``self esteem abuse by physicians(6items)``, ``sexual abuse by physicians(2 items)``, colleague abuse by physicians(2 items)`. Four factors were explained by 60.8% out of the total variance. The first factor explained 35.456%, second factor explained 12.401% and third factor explained 6.637%. And fourth factor explained 6.304%, Reliability of the factors were tested by Cronbach`s Alpha coefficient and result was 0.885. Conclusion: The scale was identified to be a tool with a high degree of reliability and validity. Therefore, this scale can be effectively utilized for assessment of verbal abuse for operating room nurses by nurses and physicians in Korea.
04 포스터 발표 : 환경 화학 분야(PC) ; PC-03 : 미나리 중 Cyhalothrin과 Diflubenzuron의 잔류 특성
노현호 ( Hyun Ho Noh ),이재윤 ( Jae Yun Lee ),박효경 ( Hyo Kyoung Park ),김진찬 ( Jin Chan Kim ),정혜림 ( Hye Rim Jeong ),이정우 ( Jung Woo Lee ),진미지 ( Me Jee Jin ),권찬혁 ( Chan Hyeok Kwon ),손영욱 ( Yoeng Uk Son ),경기성 ( Ke 한국환경농학회 2015 한국환경농학회 학술대회집 Vol.2015 No.-
소면적 재배 작물인 미나리 중 cyhalothrin(1% EC)과 diflubenzuron(25% WP)의 잔류특성을 구명하여 미나리에 대한 시험 농약의 안전성을 확보하기 위하여 이 연구를 수행하였다. 포장시험은 논 미나리보다 잔류량이 높을 것으로 예상되는 시설하우스의 밭 미나리를 이용하였다. 처리구는 수확 21일전부터 수확 예정 당일까지 7일 간격으로 2회 살포하는 조합으로 시험 농약을 살포하였다. 미나리 중 cyhalothrin과 diflubenzuron의 검출한계는 각각 0.004와 0.02 mg/kg이었으며, 회수율은 각각 94.9-101.2와 76.0-79.1%이었다. 미나리 중 cyhalothrin과 diflubenzuron의 수확 21일전7일 간격 2회 살포한 처리구의 잔류량은 각각 0.105-0.114와 4.74-5.83 mg/kg이었으며, 수확 7일전 7일 간격 2회 살포한 처리구의 잔류량은 각각 0.422-0.553과 12.62-13.32 mg/kg으로 수확일에 인접하여 농약을 살포할수록 높은 잔류량을 보였으나 살포 후 시간이 경과할수록 잔류량은 감소하였다.