http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
지경희(Kyunghee Ji),문남미(Nammee Moon),송영주(Youngjoo Song),김재곤(Jaegon Kim) 한국방송·미디어공학회 2004 한국방송공학회 학술발표대회 논문집 Vol.2004 No.-
이벤트 리포팅은 MPEG-21 멀티미디어 프레임워크에서 디지털 아이템에 대한 이벤트 및 관련정보를 획득할 수 있는 방법 및 인터페이스를 제공한다. 본 논문에서는 방송ㆍ통신 융합 환경에서 MPEG-21 이벤트 리포팅 서비스를 제공하기 위하여 이벤트 리포팅 메시지 구조를 설계하고 이를 기반으로 이벤트 리포팅 시스템을 구현한다.
내분비계 장애물질이 어류의 HPG, HPT, HPA 축에 미치는 연계영향
장솔,지경희,Jang, Sol,Ji, Kyunghee 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.3
Objectives: The objective of this review was to summarize the primary role of three representative endocrine axes in aquatic vertebrates and discuss the effects on endocrine systems and their interactions in teleost fish after exposure to environmental contaminants. Methods: We summarized individual traits and mechanisms for hormonal and transcriptional interactions between the hypothalamic-pituitary-gonad (HPG), hypothalamic-pituitary-thyroid (HPT), and hypothalamic-pituitary-adrenal (HPA) axes in fish. We also provided a brief discussion on the effects of nonylphenol-induced toxicity on endocrine systems and their interactions in fish as a demonstration of holistic explanation. Results: Currently-available data showed that thyroid dysfunction is associated with reproductive toxicity due to changes in steroidogenic gene expressions and sex hormone levels as well as gonad glands in fish. As an example, we demonstrated that exposure to nonylphenol could induce estrogenicity in male fish by decreasing thyroid hormones, which contributes to increased aromatase expression. Although the mechanisms are complicated and involved in multiple ways, a number of studies have shown that sex steroids influence the HPT axis or the HPA axis in fish, indicating bi-directional crosstalk. Critically missing is information on the primary target or toxicity mechanisms of environmental contaminants among the three endocrine axes, so further studies are needed to explore those possibilities. Conclusions: This review highlights the interactions between the HPG, HPT, and HPA axes in fish in order to better understand how these endocrine systems could interact with each other in situations of exposure to endocrine disrupting chemicals.
디지털 콘텐츠 커머스를 위한 이벤트 리포트 요구 자동 생성기 구현
이창민(Changmin Lee),지경희(Kyunghee Ji),문남미(Nam-mee Moon),강정원(Jungwon Kang) 한국멀티미디어학회 2006 한국멀티미디어학회 학술발표논문집 Vol.2006 No.1
현재 디지털 콘텐츠 e-비즈니스의 중심은 유비쿼터스 환경을 위한 u-커머스로 이전 중이다. MPEG-2l은 디지털 콘텐츠의 보호와 전달을 위한 Multimedia Framework를 제공하며. MPEG-2l Part 15 Event Reporting은 디지털 콘텐츠 커머스에 가장 적합한 저작권 보호 및 기술적 문제에 관련된 각종 기술 요소를 제공한다. 본 논문에서는 MPEG-21이 적용된 디지털 콘텐츠 커머스 환경을 위한 Event Report Request의 자동 생성기 구현을 위해 Digital Item의 구조를 분석하고, 그 결과를 바탕으로 Event Report Request 자동 생성기의 구조를 설계하고 구현한다.
환경성질환과 환경유해인자의 연관성을 규명하기 위한 독성 연구 고찰
가유진(Yujin Ka),지경희(Kyunghee Ji) 한국환경보건학회 2021 한국환경보건학회지 Vol.47 No.6
Background: The occurrence of environmental disease is known to be associated with chronic exposure to toxic chemicals, including waterborne contaminants, air/indoor pollutants, asbestos, ingredients in humidifier disinfectants, etc. Objectives: In this study, we reviewed toxicological studies related to environmental disease as defined by the Environmental Health Act in Korea and toxic chemicals. We also suggested a direction for future toxicological research necessary for the prevention and management of environmental disease. Methods: Trends in previous studies related to environmental disease were investigated through PubMed and Web of Science. A detailed review was provided on toxicological studies related to the humidifier disinfectants. We identified adverse outcome pathways (AOPs) that can be linked to the induction of environmental diseases, and proposed a chemical screening system that uses AOP, chemical toxicity big data, and deep learning models to select chemicals that induce environmental disease. Results: Research on chemical toxicity is increasing every year, but there is a limitation to revealing a clear causal relationship between exposure to chemicals and the occurrence of environmental disease. It is necessary to develop various exposure- and effect-biomarkers related to disease occurrence and to conduct toxicokinetic studies. A novel chemical screening system that uses AOP and chemical toxicity big data could be useful for selecting chemicals that cause environmental diseases. Conclusions: From a toxicological point of view, developing AOP related to environmental diseases and a deep learning-based chemical screening system will contribute to the prevention of environmental diseases in advance.
환경성 내분비계장애물질(EDCs)의 우선관리순위 결정법 개발 및 적용
임미영(Miyoung Lim),박지영(Ji Young Park),지경희(Kyunghee Ji),이기영(Kiyoung Lee) 한국환경보건학회 2018 한국환경보건학회지 Vol.44 No.1
Background: Exposure to endocrine disrupting chemicals (EDCs) has been considered one of the main causes of a range ofendocrine diseases in modern society. An EDC priority list considering exposure, toxicity, and societal concern should be established for EDC management. Methods: The chemical ranking and scoring (CRS) system forEDCs was based on exposure, toxicity,and societal concern. The exposure score system was based on usage, circulation volume, bioaccumulation, and detection in consumer products. The toxicity score system was based on carcinogenicity and reproductive and developmental toxicity. The societal concern score system was based on domestic or international regulations and mass mediareports. Results: A total of 165 EDCs wereconsidered in the CRS system. The top-fivepriority EDCs were Bis(2-ethylhexyl) phthalate (DEHP), Benzene, Bisphenol A, Dibutyl phthalate (DBP) and Trichloroethylene. Phthalates, bisphenols and parabens were identified as priority chemical groups. Conclusion: We developed a CRS system forEDCs to identify priority EDCs for management. Thiswill be afoundation to provide anEDC management plan based on scientific decision-making.
물 환경 잔류 의약물질 혼합노출에 따른 생태독성의 연구 동향
이고운(Gowoon Lee),이새람(Saeram Lee),지경희(Kyunghee Ji),김필제(Philje Kim),최경호(Kyungho Choi) 서울대학교 보건환경연구소 2012 보건학논집 Vol.49 No.2
A number of pharmaceuticals have been detected in the ambient water worldwide. One of the potential public health concerns relating to pharmaceuticals in water is the ecotoxicological consequences of the combined exposure. Due to the physiologically active nature, pharmaceuticals may influence the toxicity of other pharmaceuticals or different groups of water contaminants through various modes of interaction. In this review, major approaches that have been used to estimate the toxicity of mixtures, e.g., dose addition and response addition, are introduced. In addition, published works related to mixture exposure studies of pharmaceuticals were identified and reviewed to understand the current status of knowledge and research trend on this issue. Most studies are focused on multiple pharmaceuticals that were detected in high frequencies and concentrations. Several but limited number of studies were conducted to test the hypotheses that are based on pharmacological functions of given chemicals. Suggestions for future research direction on mixture pharmaceuticals study were made.
화학물질 독성 빅데이터와 심층학습 모델을 활용한 내분비계 장애물질 선별 방법: 세정제품과 세탁제품을 중심으로
이인혜(Inhye Lee),이수진(Sujin Lee),지경희(Kyunghee Ji) 한국환경보건학회 2021 한국환경보건학회지 Vol.47 No.5
Background: The number of synthesized chemicals has rapidly increased over the past decade. For many chemicals, there is a lack of information on toxicity. With the current movement toward reducing animal testing, the use of toxicity big data and deep learning could be a promising tool to screen potential toxicants. Objectives: This study identified potential chemicals related to reproductive and estrogen receptor (ER)- mediated toxicities for 1135 cleaning products and 886 laundry products. Methods: We listed chemicals contained in cleaning and laundry products from a publicly available database. Then, chemicals that potentially exhibited reproductive and ER-mediated toxicities were identified using the European Union Classification, Labeling and Packaging classification and ToxCast database, respectively. For chemicals absent from the ToxCast database, ER activity was predicted using deep learning models. Results: Among the 783 listed chemicals, there were 53 with potential reproductive toxicity and 310 with potential ER-mediated toxicity. Among the 473 chemicals not tested with ToxCast assays, deep learning models indicated that 42 chemicals exhibited ER-mediated toxicity. A total of 13 chemicals were identified as causing reproductive toxicity by reacting with the ER. Conclusions: We demonstrated a screening method to identify potential chemicals related to reproductive and ER-mediated toxicities utilizing chemical toxicity big data and deep learning. Integrating toxicity data from in vivo , in vitro , and deep learning models may contribute to screening chemicals in consumer products.
한국의 의료폐기물 발생 및 처리의 공간적 분포에 관한 연구
오세은,이진헌,안호기,김기연,박석환,하권철,지경희,황성호,윤오섭,홍영습,이은일,김판기,이경무,Oh, Se-Eun,Lee, Jinheon,Ahn, Hoki,Kim, Ki-Youn,Park, Seokhwan,Ha, Kwonchul,Ji, Kyunghee,Hwang, Sungho,Yoon, Oh-Sub,Hong, Young-Seoub,Lee, Eunil,Kim, 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.6
Objectives: In Korea, the system of management of medical waste largely relies on the incineration method. Our study aimed to identify any regional imbalances between the generation and treatment of medical waste, and provide reference data for future policy in Korea. Methods: We analyzed data on the amount of medical waste from 2,000 hospitals in 2012, 2013, and 2014 obtained from the Korea Environment Corporation. In the Arc GIS program (version 10.2.3), the addresses of hospitals and incinerators were transformed into map coordinates. The amount of waste generated by each hospital and the amount incinerated were represented by density and size of a triangle symbol, respectively. Results: As of 2014, the total amount of medical waste from the top 2,000 hospitals was 136,073 tons, out of which about half (49%) was generated in the capital area. Eleven incineration companies (three in the capital area, two in the Chungcheong Provinces area, one in the Jeolla Provinces area, and five in the Gyeongsang Provinces area) treated this waste. For the years 2012, 2013, and 2014, about 60% of the medical waste generated from the hospitals in the capital area was treated within the capital area and about 40% was transported to other areas, especially the Gyeongsang Provinces area, for treatment. On the other hand, about 90% of the medical waste incinerated in the capital area originated from the capital area. Conclusion: Our results suggest a spatial imbalance between the generation and treatment of medical waste in Korea and warrants multilateral policies, including the expansion of on-site treatment, strengthening regulation of the containment of medical wastes, promoting reductions in medical waste and more.