http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
백금 촉매에 망간과 바륨을 첨가한 CDPF 시스템의 카본 산화 특성
정종우(Jongwoo Jeong),최병철(Byungchul Choi),임명택(Myung Taeck Lim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Catalytic activity over Pt/Al₂O₃, Pt-Mn/Al₂O₃ and Pt/Ba-Al₂O₃ catalysts for oxidation of carbon black simulating the soot of diesel particulate matters to CO₂ has been investigated with model gases of diesel emission. Two stages of catalyst with the strategies of promoting the catalytic activity for carbon oxidation and total catalytic oxidation for partial oxidized products, simultaneously, was composed of the oxidation catalyst for carbon black and the Pt catalyst. The catalytic oxidation for carbon black to CO₂ was accelerated by activated oxidants and some exothermic reaction over the oxidation catalyst which lies in upstream of two stages. Two stages of catalyst composed of Pt/Al₂O₃ in upstream and Pt-Mn/Al₂O₃ with carbon black in downstream showed high catalytic oxidation activity for carbon black to CO₂ with 80% consumption rate of carbon black to total loaded carbon black in the range of 350-500℃.
이중층 워시코트 Rh-Pd-Pt 삼원촉매의 열적 열화에 따른 반응 특성
최병철(Byungchul Choi),정종우(Jongwoo Jeong),손건석(Geonseog Son),정명근(Myunggun Jung) 한국자동차공학회 2006 한국 자동차공학회논문집 Vol.14 No.1
The research was conducted to characterize of Rh-Pd-Pt TWC with a double-layer washcoat for gasoline vehicle. The physical characteristics on surface of catalyst were inspected by BET, SEM and TEM. The characteristics of catalytic reaction were examined by the TPD/TPR and CO-pulse chemisorption. The catalyst 6Hx(0.35×11×3) showed superior conversion performance after hydrothermal aging process, which was due to small difference of the surface area between the fresh and the aged catalyst. The CO-chemisorption and surface area were superior in the 600 cpsi catalyst than other catalysts, this catalyst also shown the higher conversion efficiency of the exhaust emissions. From the TPR test, the conversion performance of the aged catalyst was decreased by the agglomeration and sintering of the PM and metal oxides. From the TPD result, it was found that the NO chemisorption was happed on the bottom-layer washcoat with Pd, and the NO chemisorption was re-happened on the upper-layer washcoat with Pt and Rh in the desorption process.
정지범(Jibom Jung),황희승(Hee-seung Hwang),이다민(Damin Lee),김희수(Heesoo Kim),정진협(Jin-Hyeop Jeong),정종우(Jongwoo Jung) 국립공원연구원 2021 국립공원연구지 Vol.12 No.1
본 논문은 국내 해양 생물다양성의 보고인 한려해상국립공원의 2019~2020년 절지동물(십각류) 동물상 조사 결과에 대한 종 목록 및 특이사항을 제시하였다. 통영, 거제, 사천, 남해, 여수의 20곳에서 총 24과 39속 57종의 십각류를 발견하였다. 해당 종들의 조사지역별 서식 여부는 기질 특성에 따라 차이를 보였다. 한편, 본 연구를 통해 국내에서 2과 3속 8종 35개체의 십각류 기생성 만각류가 서식하는 것을 확인하였고 이 중 2종은 신종 후보종, 6종은 미기록종으로 간주되며 한려해상국립공원 지역의 추가적인 조사를 통해 해당 분류군의 국내 다양성 현황을 확인해야 한다. This paper presents a species list and remarks on the results of the 2019-2020 decapod fauna survey conducted in Hallyeohaesang National Park, a report of Korean marine biodiversity. A total of 57 species, 39 genera, and 24 families of decapods were found in 20 locations of Tongyeong, Geoje, Sacheon, Namhae, and Yeosu. The species composition in each survey area was different according to the characteristics of the substrate. On the other hand, through this study, the presence of 35 rhizocephalans (decapod parasitic barnacles) of 8 species, 3 genera, and 2 families in Korea was found. Among them, 2 species are considered new species candidates, and 6 species are considered unreported species. The biodiversity of rhizocephalans in Korea should be confirmed through additional investigations of these areas.