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극서환경용 포스페이트 도입 화학혼화제 모르타르 특성 평가
기전도 ( Ki Jun-do ),김광기 ( Kim Kwang-ki ),김정진 ( Kim Jung-jin ),박순전 ( Park Soon-jeon ),김정선 ( Kim Jung-sun ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2
Performances such as retention, setting time and strength generation of mortar with phosphate-introduced chemical admixture, domestic and foreign admixtures are evaluated to find one that meets over 3 hours retention in extremly hot weather condition in this study .
전혜원(Hye Won Jeon),김정선(Jun Sun Kim),이대영(Dae Young Lee) 대한설비공학회 2020 대한설비공학회 학술발표대회논문집 Vol.2020 No.6
This study aimed to analyze the performance and utilization of SDP(Super Absorbent Polymer) applied technology of polymer hygroscopic material. As SDP is a polar material that adsorbs polar molecules such as water molecules and odor molecules, it is 5 times superior in moisture absorption ability compared to the existing inorganic dehumidifying materials and that can be used semi-permanently by repeating moisture absorption and moisture resistance in response to ambient humidity. Also, SDP regenerates at a low temperature and has a very fast moisture absorption rate which can dramatically increase energy efficiency if applying it to systems such as dehumidifiers and dehumidifiers. In addition, it functions as an antibacterial and antifungal due to the characteristics of the electrolyte polymer. Currently, it has been developed as a sheet material and will expand the field of application.
심지 길이 및 개수가 C-형강 저면관수재배시 꽃고추의 생육에 미치는 효과
소인섭(So In Sup),김정선(Kim Jeong Sun),송환준(Song Hwan Jun),정연옥(Jeong Yeon Ok),서수진(Seo Soo Jin),박중춘(Park Joong Choong),허무룡(Huh Moo Ryong) 한국인간·식물·환경학회 2007 인간식물환경학회지 Vol.10 No.3
매트재배와 C-형강재배에서 공히 심지길이에서 20㎝가 모든 토양에서 양호한 생육결과를 나타내었고, 토양별로는 유비토실이 모든 심지길이 처리에서 제일 좋은 결과를 보였다. 하지만 펄라이트와 코이어의 혼용처리비율간에는 심지길이에 따라 생육량이 변화는 경향을 보였다. 관수방법에 따른 생장량의 비교에서 같은 처리조건에서 매트관수가 C-형감심지재배 보다 지상부 건물중이 무거웠으나 초장이나 열매의 생육량은 두 처리간에 큰 차이는 나타나지 않았다. 하지만 분지수에 있어서는 유비토실이 사용시 C-형강재배에서가 매트재배에서보다 1개 정도 많은 수치를 보였다. The best growth was showed on 20cm wick length with mat and C-channel culture in all treatments, Tosilee including fertilizer resulted in best growth. However, the growth increment changed as according to wick length within the mixing ratio of perlite and coir. Comparison of growth increment as according to irrigation methods, shoot dry weight was heavier with mat than that of C-channel, but there was not different shoot height and fruit growth between mat and C-channel. However, lateral shoot number was about 1 more with C- channel than mat culture at the Tosilee including fertilizer. Tosilee including fertilizer resulted in more growth within all wick length than Tosilee not including fertilizer, specially shoot dry weight was 4 time heavier with 20cm wick length. 20cm wick length showed best growth.
광합성세균 Rhodopseudomonas palustis 분리 및 IAA와 Carotenoid 생성에 관한 연구
김유경,조영윤,강호준,김정선,양성년,좌창숙,Kim, Yu-Kyoung,Cho, Young-Yun,Kang, Ho-Jun,Kim, Jung-Sun,Yang, Sung-Nyun,Jwa, Chang-sook 한국유기농업학회 2017 韓國有機農業學會誌 Vol.25 No.4
본 연구에서는 제주도 한라산 중산간 습지대 28개소에서 IAA 및 carotenoid 생성능이 우수한 광합성 세균 1종을 최종 선발하였으며, 16S rRNA 염기서열 분석과 생리학적 특성을 조사한 결과 Rhodopseudomonas palustris JK-1 균주로 동정하였다. JK-1 균주의 최적배양조건을 선발하기 위하여 pH, 온도, 빛 및 통기 등을 포함한 여러 가지 요인들이 균주의 생장과 IAA 및 carotenoid 등 광합성색소 생성에 미치는 영향을 조사하였다. 시험결과 JK-1 균주는 명/혐기조건에서 균생장, IAA 및 광합성색소 생성이 양호하였으며 암/혐기조건에서 균생장, IAA 및 광합성색소 형성이 모두 크게 억제되었다. 명/혐기조건에서 균생장, IAA 및 carotenoid 등 광합성색소의 생산을 위한 최적 pH, 온도 및 배양회전속도는 각각 7, $30^{\circ}C$, 150 rpm, 9, $30^{\circ}C$ 및 150 rpm, 그리고 6, $25^{\circ}C$ 및 50 rpm이었다. 그리고 명/호기조건(0.5~1 vvm)에서는 명/혐기조건(0 vvm)보다 균생장 및 IAA 합성이 양호하였으나 광합성색소 형성은 크게 억제되었다. 따라서 최적배양조건은 명/혐기조건에서 pH 7, 온도 $30^{\circ}C$ 및 회전속도 100 rpm을 선발하였으며, IAA 합성을 유도한 배양액을 생육촉진 효과검증에 이용하였다. 시험결과 R. palustris JK-1 균주를 열무에 3% (v/v) 처리 시 지상부 및 지하부 건물중이 무처리 및 배지처리구 대비 각각 20~58% 및 40-28% 증가하였다. The JK-1 isolate which was the best producer of indole-3-acetic acid and carotenoid among the 388 strains isolated from 28 wetlands in Jeju, was identified to be Rhodopseudomonas palustirs belongs to a typical group of non sulfur purple bacteria based on 16S sRNA sequencing. This study investigated the effect of different cultural conditions of pH, temperature, agitation, light and aeration on growth, IAA and carotenoid production of photosynthetic bacterium JK-1 for optimization of IAA and carotenoid production. It was found that growth, IAA, carotenoid, and bacteriochlorophyll production with light (3,000~3,500 Lux) and agitation (100 rpm) showed better results than those with dark/static or dark/agitation (100 rpm) in anaerobic conditions. The optimal pH, temperature and agitation speed for cell growth were 7, $30^{\circ}C$, 150 rpm, for IAA production were 9, $30^{\circ}C$, 150rpm and for carotenoid production were 6, $25^{\circ}C$, 50 rpm, cultured for 72 h under anaerobic light, respectively. The growth and IAA production were high in aerobic culture compared with anaerocic culture, whereas carotenoid and bacteriochlorophyll content were decreased extremely in aerobic condition (0.5~1 vvm). Subsequently, the optimal culture conditions for JK-1 were selected with pH 7, $30^{\circ}C$ and 100 rpm under anaerobic light and the effect on plant growth was tested by pot assay. Inoculation of JK-1 with 3% (v/v) level caused increase in shoot and root dry weigh that varied from 20%~58% to 40%~28% in young radish in camparison to uninoculated treatment at 50 days of growth. The study suggests that the JK-1 isolate may serve as efficient biofertilizer inoculants to promote plant growth.
Si 기판에서 원자층 화학 기상 증착법으로 제조된 Al<sub>2</sub>O<sub>3</sub> 및 ZrO<sub>2</sub> 유전 박막의 결정학적 특성 및 계면 구조 평가
김중정,양준모,임관용,조홍재,김원,박주철,이순영,김정선,김근홍,박대규,Kim, Joong-Jung,Yang, Jun-Mo,Lim, Kwan-Yong,Cho, Heung-Jae,Kim, Won,Park, Ju-Chul,Lee, Soun-Young,Kim, Jeong-Sun,Kim, Geun-Hong,Park, Dae-Gyu 한국재료학회 2003 한국재료학회지 Vol.13 No.8
Crystallographic characteristics and interfacial structures of $Al_2$$O_3$and $ZrO_2$dielectric films prepared by atomic layer chemical vapor deposition (ALCVD) were investigated at atomic scale by high-resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS)/electron energy-loss spectroscopy (EELS) coupled with a field-emission transmission electron microscope. The results obtained from cross-sectional and plan-view specimens showed that the $Al_2$$O_3$film was crystallized by annealing at a high temperature and its crystal system might be evaluated as either cubic or tetragonal phase. Whereas the $ZrO_2$film crystallized during deposition at a low temperature of ∼$300^{\circ}C$ was composed of both tetragonal and monoclinic phase. The interfacial thickness in both films was increased with the increased annealing temperature. Further, the interfacial structures of X$ZrO_2$$O_3$and $ZrO_2$films were discussed through analyses of EDS elemental maps and EELS spectra obtained from the annealed films, respectively.