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6-benzylaminopurine의 엽면살포가 나도풍란 유묘의 생장 및 개화에 미치는 영향 분석
안지애,황정은,박형빈,박환준,김성준,이창우,이병두,백주형,김남영,김평범 한국환경복원기술학회 2023 한국환경복원기술학회지 Vol.26 No.6
Sedirea japonica is one of the critically endangered species in South Korea mostly due to artificial harms such as illegal collection and habitat destruction. Therefore, artificial propagation through improving germination rate, increasing growth, and controlling flowering is meaningful for the conservation and reintroduction of S. japonica. It is suggested that cytokinins are one of the multi-factors that contribute to plant growth and floral responses. Especially, exogenous cytokinins have been known to induce or promote shoot growth or earlier flowering in orchids. Therefore, it was investigated how the application of 6-benzylaminopurine (BA) influenced the growth and inflorescence of S. japonica. A foliar spray containing BA at 100, 200, 300, and 400 ppm was applied from 1st July to 30th December 2021. Leaf length, leaf length growth rate, leaf width, and width and length ratio were measured as growth-related factors. Visible inflorescence rate, inflorescence length, the number of flowers per inflorescence, and the distance between the stalks were measured as flowering-related factors. Growth-related factors except for leaf growth rate were not affected by BA treatments, while leaf growth rate was significantly increased by 200 ppm of BA treatment. The visible inflorescence rate increased by 200 ppm of BA treatment, and there seems an optimal concentration and threshold of BA treatment. An iterative experiment with more seedlings and measurement factors would be helpful to figure out the effects of exogenous BA treatment on S. japonica, and it can be applied for mass propagation.
안지애,장한나,한승현,Asia Khamzina,손요환 한국산림과학회 2020 Forest Science And Technology Vol.16 No.1
Afforestation of the desiccated Aral Sea Bed is needed for the rapid introduction of vegetation and rehabilitation of the soil environment. The present study aimed to detect the soil amelioration effect by afforestation of the Aral Sea Bed with respect of changes in topsoil properties and enzyme activities. In August and November 2018, soils were sampled from the barren areas and from areas afforested in 1991, 2005, 2009, 2010, and 2013. The exchangeable base cation concentrations (Ca2þ, Kþ, Mg2þ, and Naþ), cation exchange capacity (CEC), plant-available P concentration, electrical conductivity, pH, and enzyme activities (acid phosphatase, b-glucosidase, and N-acetyl-glucosaminidase) were analyzed in the surface soil (0–10 cm). Base cation concentrations, CEC, and electrical conductivity decreased following afforestation possibly because of root absorption. The observed increase in soil pH could be affected by both root absorption and decomposition of plant residues. Enzyme activities, which are early indicators of soil recovery, might have been increased by afforestation through the release of nutrients from litter and root exudates. Our findings indicate that the establishment of vegetation through afforestation can provide supportive microenvironments for plants and microorganisms by decreasing soil salinity and activating soil microbial enzymes; these effects of afforestation are amplified over time.
차세대 에너지 산업에서의 열역학 심포지엄 : G-14 ; Phenol의 oxidative carbonylation에 의한 diphenyl carbonate(DPC)합성
안지애,이경희 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
Poly carbonate(PC)의 합성법으로 쓰이고 있는 phogene process는 phosgene 자체의 맹독성과 부식성등의 문제등으로 유지비용에 큰 투자가 요구되며 환경에 유해한 문제점을 가지고 있다. 이런 문제점 해결을 위해 nonphosgene process가 요구되었고 DPC는 그 중간체 물질이다. DPC 합성 방법중 반응이 한 단계로 진행되고 반응식상 물이 유일한 부산물인 페놀의 산화카르보닐화 반응을 실험하였다. Homogeneous screen test 결과 Pd(OAc)2 와 Cu(OAc)2 가 반응성이 가장 좋았으며 heterogeneous 실험시 Pd/C이 Pd(OAc)2 보다 더 좋은 반응성을 보이는 것을 확인하였다. TBAB를 넣지 않으면 반응을 하지 않는것과 소량의 phONa를 첨가하면 반응성이 약간 상승하는 것을 확인하였다. Carbon위의 Pd 분산도가 DPC 합성반응에는 큰 영향을 주지 않았으며 반응 생성물인 물의 제거가 선택도와 반응성에 큰 영향을 가져다 주었다. 물을 제거하기위해 molecular sieve 사용시 반응성이 크게 증가 하였으며 오랜시간 반응시 반응성이 떨어지는 것을 막아주었다.
6-benzylaminopurine의 엽면살포가 나도풍란 유묘의 생장 및 개화에 미치는 영향 분석
안지애 ( Jiae An ),박형빈 ( Hyeong-bin Park ),김평범 ( Pyoung-beom Kim ),박환준 ( Hwan-joon Park ),김성준 ( Seongjun Kim ),이창우 ( Chang-woo Lee ),이병두 ( Byoung-doo Lee ),백주형 ( Ju-hyoung Baek ),김남영 ( Nam-young Kim ),황정 한국환경복원기술학회 2023 한국환경복원기술학회지 Vol.26 No.6
Sedirea japonica is one of the critically endangered species in South Korea mostly due to artificial harms such as illegal collection and habitat destruction. Therefore, artificial propagation through improving germination rate, increasing growth, and controlling flowering is meaningful for the conservation and reintroduction of S. japonica. It is suggested that cytokinins are one of the multi-factors that contribute to plant growth and floral responses. Especially, exogenous cytokinins have been known to induce or promote shoot growth or earlier flowering in orchids. Therefore, it was investigated how the application of 6-benzylaminopurine (BA) influenced the growth and inflorescence of S. japonica. A foliar spray containing BA at 100, 200, 300, and 400 ppm was applied from 1st July to 30th December 2021. Leaf length, leaf length growth rate, leaf width, and width and length ratio were measured as growth-related factors. Visible inflorescence rate, inflorescence length, the number of flowers per inflorescence, and the distance between the stalks were measured as flowering-related factors. Growth-related factors except for leaf growth rate were not affected by BA treatments, while leaf growth rate was significantly increased by 200 ppm of BA treatment. The visible inflorescence rate increased by 200 ppm of BA treatment, and there seems an optimal concentration and threshold of BA treatment. An iterative experiment with more seedlings and measurement factors would be helpful to figure out the effects of exogenous BA treatment on S. japonica, and it can be applied for mass propagation.
실외 실험적 온난화 처리에 따른 활엽수 4개 수종 묘목의 생리적 반응
안지애 ( Jiae An ),한승현 ( Seung Hyun Han ),장한나 ( Hanna Chang ),박민지 ( Min Ji Park ),손요환 ( Yowhan Son ) 한국임학회 2016 한국산림과학회지 Vol.105 No.4
본 연구는 실외 실험적 온난화 시스템 내에서 적외선등을 이용하여 온난화 처리를 한 다음 발아 당년의 활엽수 4개 수종(물푸레나무, 느티나무, 거제수나무, 굴참나무) 묘목의 생리적 반응을 알아보고자 수행되었다. 적외선등은 2015년 4월부터 가동되었으며, 온난화 처리구 내의 묘목들은 대조구에 비해 2.7°C 높은 대기온도 하에서 생육되었다. 기공전도도, 증산속도 및 순광합성률은 동년 7월과 9월에, 엽록소 함량은 7월과 10월에 각각 측정하였다. 온도 증가에 대한 묘목의 생리적 반응은 수종과 측정 시기에 따라 다른 결과를 나타내었다. 즉 기공전도도(mmol·m<sup>-2</sup>·s<sup>-1</sup>)는 물푸레나무(대조구:158.97±42.76; 온난화 처리구:42.07±8.24), 느티나무(대조구:170.53±27.22; 온난화 처리구: 101.17±42.27), 거제수나무(대조구:249.93±47.39; 온난화 처리구:150.73±26.52)에서 온난화 처리에 의해 감소하였다. 그리고 증산속도(mmol·m<sup>-2</sup>·s<sup>-1</sup>)도 물푸레나무(대조구:4.08±0.62; 온난화 처리구:1.74±0.39), 느티나무(대조구:4.32±0.44; 온난화 처리구:3.24±1.14), 거제수나무(대조구:6.21±0.38; 온난화 처리구:4.66±0.28)에서 대조구에 비해 온난화 처리구에서 낮은 값을 나타내었다. 한편, 굴참나무의 경우 기공전도도와 증산속도의 처리 간 차이가 유의하지 않았다. 엽록소 함량은 대부분의 수종에서 온난화 처리에 의해 증가하였으나, 순광합성률은 모든 수종에서 처리 간의 차이가 통계적으로 유의하지 않았다. 이는 온난화 처리의 영향이 미미하여 순광합성률의 변화에까지 영향을 미치지 못하였기 때문인 것으로 판단된다. This study was conducted to investigate the physiological responses of newly-germinated seedlings of Fraxinus rhynchophylla Hance, Zelkova serrata (Thunb.) Makino, Betula costata Trautv. and Quercus variabilis Blume to open-field experimental warming. The seedlings in the warmed plots were warmed with 2.7°C higher air temperature than those in the control plots using infrared heaters since April, 2015. Physiological responses (stomatal conductance, transpiration rate, chlorophyll content and net photosynthetic rate) to experimental warming varied with the species and the time of the measurement. Stomatal conductance (mmol·m<sup>-2</sup>·s<sup>-1</sup>) tended to decrease for F. rhynchophylla (Control: 158.97±42.76; Warmed: 42.07±8.24), Z. serrata (Control: 170.53±27.22; Warmed: 101.17±42.27) and B. costata (Control: 249.93±47.39; Warmed: 150.73±26.52). Transpiration rate (mmol·m<sup>-2</sup>·s<sup>-1</sup>) also decreased for F. rhynchophylla (Control: 4.08±0.62; Warmed: 1.74±0.39), Z. serrata (Control: 4.32±0.44; Warmed: 3.24±1.14) and B. costata (Control: 6.21±0.38; Warmed: 4.66±0.28). However, warming exhibited only minimal effects on stomatal conductance and transpiration rate of Q. variabilis seedlings. Chlorophyll content increased by the warming treatment while the effect of warming was not significant on net photosynthetic rate, since the warming treatment had a weak influence for changing net photosynthetic rate.
연구논문 : 해외 한식당 마케팅 커뮤니케이션 매체 및 한식당 이용에 대한 태도 분석 -한식당 이용 경험 및 국가별 차이를 중심으로-
안지애 ( Jee Ahe Ahn ),양일선 ( Il Sun Yang ),신서영 ( Seo Young Shin ),이해영 ( Hae Young Lee ),정유선 ( Yoo Sun Chung ) 한국식생활문화학회 2012 韓國食生活文化學會誌 Vol.27 No.6
The purpose of this study was to propose effective marketing communication strategies for overseas Korean restaurants through a multilateral comparison analysis of American, Chinese, and Japanese consumers` attitudes towards communication media and Korean restaorants. The survey was written in English, Chinese, and Japanese, with guideline for surveyors, and conducted using both online and offline methods. Samples were collected from five major cities - Los Angeles, New York, Tokyo, Beijing and Shanghai, which are the foothold for the globalization of Korean food. When it comes to attitudes towards communication media, word-of-mouth showed a high mean value, indicating it as the most useful and reliable media recognized by consumers who visited Korean restaurants. Furthermore, the necessity of recognizing the importance of visual communication in the physical environment of Korean restaurants and specialized websites, featuring restaurants and gourmet food, was observed. Consumers in all three nations chose word-of-mouth as the most useful and reliable media for learning about Korean restaurants. In addition, American consumers highly depended on signage and restaurant exteriors. Chinese consumers highly recognized the usefulness and reliability of offline media, such as newspapers, magazines, and events, while Japanese consumers considered online media, such as gourmet websites, blogs and social networks, as useful and reliable sources. A significmuly positive attitude and high value was observed in all who had visited Korean restaurants, American and Japanese consumers had a significantly higher rate of intention to visit Korean restaurants in the future and to tell others about their satisfaction with Korean restaurants. Meanwhile, the average rate of prior preference for Korean restaurants (when choosing restaurants) was the lowest in all three countries. This study is useful for both the Korean government and food enterprises abroad to plan and develop marketing communication strategies properly for overseas Korean restaurants.