http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
허재원(Jae-Won Hur),최은혁(Eun-Hyeok Choi) 한국조명·전기설비학회 2021 조명·전기설비학회논문지 Vol.35 No.11
As SF₆ gas is designated as a substance that emits greenhouse gases, its use should be gradually reduced or banned. Accordingly, the development of eco-friendly insulating media is urgently required. In this paper, the surface discharge breakdown voltage of various solid insulators was measured in dry air, which is an eco-friendly insulating medium. In addition, the radiated electromagnetic waves emitted during insulation breakdown were measured. As a result, surface discharge breakdown voltage appeared in a linear form. It confirms that the radiation electromagnetic wave of the solid insulation material could be distinguished in the early, middle, and late stages at the time of insulation breakdown. Therefore, by using the results of this paper, it would be possible to use it in the design of electrical equipment using eco-friendly insulating materials.
폐흡충의 이배체와 삼배체 vasa 유전자 분석 및 특징
이근희,유학선,허재원,유성숙,최선희,박상균,이선주,정동일,공현희,옥미선,정해진,Lee, Keun-Hee,Yu, Hak-Sun,Hur, Jae-Won,Yu, Sung-Suk,Choi, Sun-Hee,Park, Sang-Kyun,Lee, Sun-Joo,Chung, Dong-Il,Kong, Hyun-Hee,Ock, Mee-Sun,Jeong, Hae-Jin Korean Society of Life Science 2007 생명과학회지 Vol.17 No.4
폐흡충은 국내를 비롯한 아시아에서 폐흡충증을 일으키는 중요한 기생충이다. 이러한 폐흡충은 이배체 와 삼배체가 국내에 알려져 있다. 이배체 폐흡충은 양성생식을 하고 삼배체 폐흡충은 단위생식을 하는 것으로 알려져 있다. 그러나 이러한 원인에 대하여서는 알려진 바가 없다. 생식유전자 중 초파리에서 최초 분리되었고 포유동물에서도 그 기능이 밝혀진 vasa 유전자가 가장 유명하다. 이 유전자는 생식세포의 분화에 관여하며 종에 따라서는 정자생성에도 관여하는 것으로 알려져 있다. 이번 연구는 삼배체 폐흡충의 단위생식과 vasa 유전자와의 관계를 규명해 보고자 하였다. 폐흡충의 이배체와 삼배체 성충으로부터 vasa 유전자 전체의 염기서열을 얻을 수 있었다. 두 염기서열의 경우 8개의 ATP-binding domain이 관찰되었고 helicase가 결합할 것으로 예상되는 RGG motif도 관찰되었다. 총 622아미노산 서열로 구성될 것으로 보이며 이배체는 69.018 kDa, 삼배체는 68.930 kDa 크기의 단백질을 만들 것으로 예상되었다. Vasa 재조합 단백질은 GST와 fusion되어 93 kDa 크기에서 관찰되었다. mRNA의 발현은 이배체에 비해 삼배체가 다소 높았다. Anti-Pw-VASA항체를 이용한 면역조직화학법을 수행한 결과 이배체와 삼배체는 다른 기관에서는 면역반응력을 보이지 않고 고환에서만 면역반응력을 볼 수 있었다. 결과를 종합해 보면 vasa 유전자는 이배체 삼배체 모두 가지고 있었으며 정상적으로 발현되었다. In this study, we isolated, characterized, and compared the vasa homologous genes of diploid and triploid Paragonimus westermani and localized VASA homologous proteins in both lung fluke types. Open reading frames of Pw-vasa-2n and Pw-vasa-3n were of 1812 bp, and encoded deduced proteins of 622 amino acids with calculated molecular weights of 69.0 kDa and 68.9 kDa and pI's of 9.11 and 9.03, respectively. A comparison of these two VASA deduced protein sequences showed that only 6 of the 622 amino acids differed. The deduced sequences of Pw-VASA-2n and Pw-VASA-3n contained eight consensus sequences characteristic of the DEAD-box protein family and their N-terminal regions contained four arginine-glycine-glycine (RGG) motifs. These two lung fluke VASA-like proteins were more similar to those of other VASA proteins than to those of other DEAD-family proteins isolated from several organisms (planarian, zebra fish, mouse, and human). vasa homologous gene transcription and VASA protein expressions in triploid type lung flukes was slightly stronger than in the diploid type. Immunostaining showed that testes and a portion of the ovaries of both diploid and triploid lung flukes reacted strongly to anti-Pw-VASA antibody.
최은혁(Eun-Hyeok Choi),허재원(Hur Jae-Won) 한국조명·전기설비학회 2021 한국조명·전기설비학회 학술대회논문집 Vol.2021 No.11
This paper describes the fundamental insulation characteristics of Imitation-Air (N₂:O₂ =79[%]:21%[%]) under an uniform field using electrodes of point, plane and rod.. From the fundamental insulation characteristics of Imitation-Air, we verify replaceability of Imitation-Air according to gas pressure and gap as well as gas pressure to replace 1 atm SF6 gas when eco-friendly Imitation-Air is applied to insulation design of various HV power equipment instead of SF6 gas.
대도시주변 농촌지역의 생활편익시설 이용실태 분석에 관한 연구 : 성주군을 사례로
이성근,이관률,허재원 영남대학교 지역발전연구소 2000 영남지역발전연구 Vol.26 No.-
The purpose of this study is to analyze the use of community services and facilities in rural areas of Sungju County in Taegu Metropolitan Areas. This study gives policy implication such as principles, guidelines and criteria for metropolitan area planning. In this study, there are four levels of living hierarchy systems as follows; The lowest level is a small living boundary system such as Eup-Myon. The second level is a middle range living boundary system such as 3~4 Eup-Myon. The third level is a county. The highest level is a metropolitan area. The living boundary system of Sungju County has two regions. One is the Nakdong River territory; the other is the Kaya Mountain-cultural territory. The results of a survey(1999) about using the living and convenient facilities of Sungju's residents are as follows; Sungju's residents have access to 60.6% of their living services and facilities in the intra Sungju County. whereas, 34.4% of their services and facilities are located in the central city, Taegu. So, the degree of interaction between Taegu Metropolitan City and Sungju County is very high. The rate of self-sufficiency of Sungju County is 60.6%. The rate of dependency on Taegu is 34.4%. Compared to 1995, this is a 1.5% increase in self sufficiency and a 6.5% decrease in dependency on Taegu. Singju County is especially dependent on taegu for education, wedding and hospital facilities. In conclusion, to develop Sungju County, there must be a focus and priority on enhancement of regional education, and the development of each regional growth center.