실내공기 오염물질의 국내.외 사무실 농도실태

정지연,Jeong, Ji-Yeon 대한산업보건협회 2005 산업보건 Vol.208 No.-

토끼에서 Pasteurella multocida 감염에 의한 뇌막뇌염과 폐렴 증례보고

정지연,이경현,최은진,김하영,손준형,소병재,정지열,Jeong, Jiyeon,Lee, Kyunghyun,Choi, Eun-Jin,Kim, Ha-Young,Sohn, Jun Hyung,So, ByungJae,Jung, Ji-Youl 대한수의학회 2018 大韓獸醫學會誌 Vol.58 No.1

Eight rabbits exhibited head tilt and subsequently died. At necropsy, three rabbits had crusty deposits in ears and four had reddish lungs. The main histopathological features were severe diffuse suppurative meningoencephalitis (75.0% of rabbits), fibrinopurulent pneumonia (37.5%), and otitis externa (37.5%). Pasteurella multocida (P. multocida) was isolated from brains, ears, and lungs. The capsular serogroups of the isolates were untypable. Based on histopathological features and bacterial analysis results, the rabbits were diagnosed as P. multocida infection. P. multocida infections might result in considerable economic loss in commercial rabbit production facilities in Korea.

새만금 방조제 외해역의 저서생물 군집 변화

정지연,권효근,장정렬,최강원,Jung, Ji-Yeon,Kwon, Hyo-Keun,Jang, Jeong-Ryeol,Choi, Kang-Won 한국관개배수위원회 2010 한국관개배수논문집 Vol.17 No.2

This study was carried out to investigate the changing of benthic macrobenthos community in Saemangeum subtidal area. The distribution of macrobenthic community is important to assume the benthic environment in study area. Macrobenthic community was investigated three times in 2007 (March, June and September) in the Saemangeum subtidal area. The mean density of macrobenthos was $345{\sim}838ind./m^2$ and the most dominant taxa was benthic polychaete. Opportunistic species such as E.cordatum, T.fragilis, H.filiformis, and Tharyx sp. were shown high appearance rate in study area. The dominance of these opportunistic species suggest that the benthic environment of study area was unstable due to environmental disturbance. But, there are only few point that these species were recorded high densities, and also equilibrium species was dominant, too. It means disturbance and un stability of benthic environment in Seamangeum was not serious yet. so the dynamics and trends of these opportunistic species should be concerned.

국내 농업의 선진화를 위한 LOK(Linked Open Knowledge) 구축 방안 연구

정지연(Jee-Yeon Jeong),정성훈(Seong-Hun Jeong),이새봄(Sae-Bom Lee),정재진(Jae-Jin Jung) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.9

농업과 ICT(Information & Communication Technology)의 융합기술은 미래농업의 주요 요인으로 지목되고 있는 가운데 식량부족 및 식품 안전성 문제의 대안 책으로 주목받고 있다. 최근 들어, 국내 및 국제농업분야에서는 농작물 생육환경에 대해 ICT기술 중 빅데이터를 이용하여, 농업분야 환경을 개선하고자한다. 그러나 아직까지 국내 농업분야에서는 빅데이터 활용도가 낮으며, 농가별로 폐쇄적으로 운영하여 생육환경 데이터가 공유되지 않고 있다. 따라서 세계 10대 유망상업 중 하나로 꼽히는 빅데이터 활용과 더불어 개방형 지식 서비스화 할 수 있는 LOK(Linked Open Knowledge) 시스템이 필요하다. 본 연구는 국내외 생육환경과 빅데이터의 연구현황을 분석하고 국내 농업의 선진화 방안으로 농업 내의 빅데이터 구축 및 활용을 통한 농작물에 대한 LOK의 필요성을 알아보고, 제언하고자 한다. The convergence technology of ICT(Information & Communication Technology) in agriculture is the main key of the future agricultural industry. Recently, many that by using big data it can improve crop growth-circumstance and agricultural Industry. However, the data of crop growth-circumstance has been not shared and operated separately by individual farm. Therefore, it is necessary to build the LOK(Linked Open Knowledge) system for Quality of Farming & Farm product. We research previous studies for big data and development of the corp growth-circumstance using big data system case. Also, we suggest to build LOK system for improving the domestic agricultural industry.

간호사고와 관련판례에 대한 임상간호사의 지각

정지연(Ji Yun Jeong),이명하(Myung Ha Lee) 한국간호행정학회 1999 간호행정학회지 Vol.5 No.3

선명화 기법을 이용한 TextFuseNet 성능 향상

정지연(Ji-Yeon Jeong),천지은(Ji-Eun Cheon),정유철(Yuchul Jung) 한국컴퓨터정보학회 2021 한국컴퓨터정보학회 학술발표논문집 Vol.29 No.1

藥水에 서 分離한 大陽園群의 一部重金屬및 抗生齊l 耐性에 關한 硏究

鄭止淵(Jee Yeon Jeong),鄭文植(Moon Shik Zong) 한국환경보건학회 1989 한국환경보건학회지 Vol.15 No.1

The purposes of this study were to find out the heavy metal and antibiotic resistant coliform bacteria from mineral water and the resistant factors. For the experiment, mineral water samples were taken from A area and B area during the period from march to July, 1988. The results of the experiment were as follows; 1. From mineral water, eleven resistant coliforms and one susceptible coliform were isolated. 2. All resistant isolates harbored diverse plasmids of ranged ca. 14-54kb. 3. Susceptible coliform harbored a on1y plasmid of ca. 2.8 kb. 4. All resistant isolates harbored common size of plasmid of ca. 14kb. 5. As a result of the transformation and agarose gel electrophoresis experiments, resistant factor was R-plasmid. In conc1usion, It is suggested that heavy metal contamination of mineral water is the selective pressure for the plasmid encoding the tolerance. Heavy metal resistance, in some case , is present with antibiotic resistance. Therefore, heavy metal contamination of minera1 water induces antibiotic resistant bacteria.

우레탄 폼 제조방식에 따른 작업자의 디이소시아네이트 노출수준 평가

정지연 ( Jee Yeon Jeong ),박성욱 ( Sung Wook Park ),이지은 ( Jee Eun Lee ),이광용 ( Gwang Yong Lee ) 한국산업위생학회 2012 한국산업보건학회지 Vol.22 No.3

Objectives: Polyurethanes are usually formed by the reactions of liquid diisocyanate components with liquid polyol resin components. Although polyurethanes have advantageous properties, such as their versatility, the manufacturing process generates diisocyanates, which can cause asthma and respiratory irritation in exposed workers. This study compared the differences in diisocyante concentrations between two different (molded foam and slabstock foam) polyurethane foamanufacturing methods. Materials and Methods:: Active samples and direct reading samples of diisocyanates (MDI, TDI) were collected in five polyurethane foam manufacturing companies. Results:: Workers` exposure concentrations of diisocyanate (GM: 4.078 ppb, range: 1.190~23.770 ppb) in a slabstock foam manufacturing company were much higher than those (GM: 0.011 ppb, range: 0.001~0.055 ppb) in molded foam manufacturing companies. The results of the direct reading samples of diisocyanate indicated that the rapid reaction zone of the slabstock foam processes emitted large amounts of diisocyanates. Conclusions: The exposure levels of diisocyanates for all molded foam workers were much lower than the occupational exposure standard (5 ppb); however, exposure levels for many slabstock foam workers exceeded the standard.

광원색이 직물의 색 변화에 미치는 영향

정지연 ( Ji Yeun Jeong ),이은경 ( Eun Kyung Lee ) 대한가정학회 2010 Family and Environment Research Vol.48 No.5

Although design, color, and material are important elements in stage costumes, stage lightning also plays significant role in the presentation of stage costumes. Costumes color, material and perception can be significantly influenced by visual effects. Stage illumination can be arranged or managed so that colors are closely related to or enhanced or change the effects of costume colors on the runway or display at specific times. The results of this thesis are as follow; 1) Fabric tone, name, brightness, and chroma of colors were changed by the colors of stage lighting. 2) An achromatic color was changed to a chromatic color after being combined with colors of stage lighting. 3) Stage illuminations can make fabric, colors look similar to stage colors. 4) Plain satin silk fabric which reflects light shows high brightness and chroma after being influenced by stage lighting its shining effects and color changes were clear and apparent. 5) Velvet pile fabric which absorbs light shows low brightness and chroma after being influenced by stage lightning its shining effects and changes of colors were not clear and apparent. In conclusion, natural lights did not significantly influence fabric colors and perception, while artificial lights had wide range of effects on fabric colors and perception.

조선전기 壹岐 지역의 조선통교 현황에 대한 연구

정지연(Jeong, Ji-Youn) 한일관계사학회 2017 한일관계사연구 Vol.57 No.-

본 논문은 조선전기 壹岐 지역의 조선통교 현황을 시기별, 통교자별, 교역품목별로 살펴봄으로써 그동안 주목받지 못했던 壹岐 지역의 통교실태를 파악하는데 목적이 있다. 『조선왕조실록』의 壹岐 관련 통교기사를 정리하여 분석한 결과 아래와 같은 특징이 확인된다. 조선전기 壹岐 지역의 조선통교 횟수는 총 610건이고, 통교자 명의는 68명이다. 壹岐 지역 통교자들은 성종대에 가장 활발하게 통교를 하였으며, 세조대·세종대·단종대 순으로 통교가 빈번하게 이루어졌다. 壹岐 지역 통교자들은 다섯 가지 그룹으로 분류가 가능하다. 첫 번째는 『해동제국기』에 壹岐지역을 分治하는 자들로 기재된 志佐, 佐志, 呼子, 鴨打, 鹽津留등의 諸酋使그룹이다. 두 번째는 壹岐의 代官으로, 여기에는 志佐氏가 지배한 壹岐唯多只郷의 代官인 眞弓氏와 呼子氏가 지배한 壹岐小于郷의 代官인 牧山氏가 해당된다. 세 번째는 사원에서 통교한 자들로, 松林院과 觀音寺 등의 주지 또는 승려의 신분으로 통교하고 있다. 네 번째는 倭司正이나 倭護軍, 萬戶등과 같이 조선의 관직을 받은 受職人그룹이며, 다섯 번째는 위 그룹의 통교자와 친인척 관계인 자들이나, 기타 壹岐지역의 지역명만 기재된 통교자들이다. 이들의 헌상품목은 크게 염료, 광산물, 한약재, 동물, 공예품 등으로 분류된다. 유황을 중심으로 한 일본 국내산 광산물 외에 염료나 약재 등의 남해산물도 많이 볼 수 있다. 壹岐 지역 통교자들의 헌상품을 받은 조선에서 회사품목으로 준 물품들은 피복류, 음식류, 동물류, 佛具류 등이다. 壹岐 지역은 조선에서 일본으로 오고가는 관문에 위치하였고, 왜구의 거점지로 인식되었던 곳 중 하나이기 때문에 壹岐 지역의 세력가들에게 통신사행에 대한 호송을 요청해야만 했다. 이에 조선 사행의 왕래시에 壹岐 지역 세력가에게 물품을 내려주고 護送 등을 요청하는 형식의 물품교류도 존재하였다. 이상, 壹岐 지역의 통교 현황에 대해 시기별, 통교인물별, 교역품목별로 나누어 살펴보았다. 향후 壹岐 지역 이외에 五島, 對馬島, 九州등 일본 각 지역의 통교현황에 대한 연구가 더해진다면, 조선전기 일본 제지역의 조선통교의 특징을 규명하는데 일조할 수 있을 것으로 기대한다.