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일본잎갈나무림과 침활혼효림의 입지환경이 산양삼 종묘의 초기 생육에 미치는 영향
김기윤 ( Kiyoon Kim ),엄유리 ( Yurry Um ),정대희 ( Dae-hui Jeong ),어현지 ( Hyun-ji Eo ),전권석 ( Kwon-seok Jeon ),김현준 ( Hyun-jun Kim ) 한국산림과학회 2020 한국산림과학회지 Vol.109 No.3
This study investigated the environmental location effects that Larix kaempferi and mixed forests had on the early growth of wild-simulated ginseng (Panax ginseng C. A. Meyer) seedlings. Experimental plots were created in Larix kaempferi and mixed forests, and confirmed the location environments and growth characteristics of wild-simulated ginseng seedling. Our results showed that the soil properties, such as soil organic matter, total nitrogen, and cation exchangeable capacity were significantly higher in the mixed forest soil compared to the Larix kaempferiforest soil. Likewise, the growth characteristics of wild-simulated ginseng seedlings were significantly higher in mixed forestsd compare to the Larix kaempferi forest. Correlation analysis between tree species ratio, soil properties, and growth characteristics in the experimental plots determined that the soil properties and growth characteristics had significant positive correlation with the broad-leaved forest percentage. Growth characteristics of the wild-simulated ginseng seedlings were shown to have a significant positive correlation with organic matter, total nitrogen, and cation exchange capacities. This study has clearly demonstrated that the tree species ratio, and soil properties in Larix kaempferi and mixed forests were significantly correlated with the early growth of wildsimulated ginseng seedlings. These results could help to improve the selection of suitable cultivation sites for wild-simulated ginseng.
AR 초기 이용자들의 속성이 AR콘텐츠 채택과 이용에 미치는 영향에 관한 탐색적 연구 - AR콘텐츠 이용자들의 이용 인식과 이용 경험을 중심으로
김기윤(Kiyoon Kim) 한국콘텐츠학회 2020 한국콘텐츠학회논문지 Vol.20 No.4
본 연구에서는 VR/AR의 실제 이용자가 많지 않은 상황에 주목하여 스마트폰을 활용하여 쉽게 접할 수 있는 AR콘텐츠에 대한 이용자들의 채택 및 이용 과정을 기술 채택 및 이용 확산의 관점에서 탐색하였다. 그 결과 AR콘텐츠 ‘필요성’에 영향을 미치는 요인은 ‘즐거움’과 ‘만족감’의 요인으로 나타났으며, ‘혁신성’과 ‘유사미디어 이용경험’, ‘AR이용기간’의 요인들은 영향을 미치지 않는 것으로 나타났다. 아울러 AR콘텐츠의 이용 경험에 따른 ‘즐거움’, ‘만족감’, ‘필요성’에 대한 차이를 검증한 결과 즐거움과 만족감만이 이용 경험에 따른 차이를 나타내어 AR콘텐츠의 이용경험이 ‘필요성’과는 관련이 없는 것으로 분석되었다. 즉, 20대 이용자들은 즐거움과 만족감이 기대될 때, AR콘텐츠를 적극적으로 이용하는 것으로 해석될 수 있으나, AR콘텐츠에 대한 이용자들의 인식이 유희적 수준에 머물러 있음을 확인할 수 있다. 따라서 본 연구를 통해 초기 AR콘텐츠 이용자들의 인식 및 이용 행태의 경향성을 분석해본 바, 초기 이용자 집단의 이해에 중요한 시사점이 될 수 있을 것으로 판단된다. Focusing on the situation where there are not many actual users of VR / AR, this study, from the viewpoint of technology adoption and use, explores the adoption-and-use process of AR contents that can be easily accessed by using smartphones. As a result, the factors influencing the necessity of AR contents were ‘enjoyment’ and ‘satisfaction’, and other factors, such as ‘innovativeness’, ‘the experience of using similar media’, and ‘the number of AR usage’, did not have significant impact on the necessity of AR contents. In addition, as a result of verifying level differences in ‘enjoyment’, ‘satisfaction’ and ‘necessity’ according to the experience of using AR content, only the ‘enjoyment’ and ‘satisfaction’ showed that there are differences. In other words, it can be interpreted that the users in their 20s actively use AR content only when they expect to have fun and satisfaction. To sum up, this study can provide an important implication for understanding the tendency of early AR content users perception and usage behavior.
신북방정책 대상국 유형분석 및 EDCF 해외농업개발·협력분야 연계전략에 대한 연구
김기윤(Kiyoon Kim),송양훈(Yanghoon Song) 국제개발협력학회 2021 국제개발협력연구 Vol.13 No.4
연구목적: 본 연구는, 상업적 목적의 해외농업 ‘개발’(경제부처)과 인도주의적 목적의 농업농촌분야 개발‘협력’(외교부)의 연계를 위하여, 신북방정책 대상국의 구매력, 농업생산, 민간투자, 농업기반시설을 대표하는 지표들을 분석하여 군집별 세부전략의 필요성을 밝히고, 수출입은행의 대외경제협력기금(EDCF)과 신북방정책의 연계방안을 제안하는 것을 목표하였다. 연구의 중요성: 코로나19 사태와 세계 각국의 외교적 갈등, 이에 따른 세계화의 퇴행은 농식품 분야에 있어 식량수입의존도가 높은 한국에게 위협적으로 다가온다. 적극적으로 대응하기 위해서는 안정적인 해외농업생산 및 식량반입-유통 기반확보를 통한 위기의 극복이 필요하다. 따라서 북방국가들의 경제, 농업부문의 특성을 반영하여 세부적인 해외농업개발사업과 공적개발원조(ODA)의 연계방안을 새롭게 제시할 필요성이 있다. 연구방법론: 신북방정책 대상 국가들의 경제 수준, 농업 및 유통경쟁력, 그리고 민간투자 매력도와 관련한 12개 변수들로 계층적 군집분석(Cluster Analysis)과 일원 분산분석(One Way ANOVA)을 실시하였다. 연구결과: 분석결과 총 6개의 군집을 도출할 수 있었다. 이후 러시아, 중국, 우크라이나를 제외한 3개 군집에 대해 경제적, 정치적, 농업기술·환경적 특성을 파악하였고 12가지 지표 중 민간투자매력도와 농업기반시설 현황이 통계적으로 유의미한 군집별 차이를 보여주는 것을 확인하였다. 결론 및 시사점: (A) 군집은 중앙아시아 내륙국가 (B) 카스피해 인접 농업국가(C) 안정적인 신흥경제성장국으로 특징지었다. 이러한 군집별 특성에 따라 대외경제협력기금을 활용한 신북방정책 연계전략을 제시하였다. (1) 농업 전략 군집에 따라 집중지원분야를 선정, (2) 새로운 융자상품을 만들어 융자접근성을 향상, (3) 마지막으로 시장자본 차입 후 정부자금으로 이차보전을 통해 중상위소득국에 저양허성 지원을 가능하게 하는 개발금융을 제안하였다. Purpose: The purpose of this study is to propose differentiated strategies for EDCF to engage in the New Northern Policy of Korea through Cluster Analysis, which ocnsiders the target countries’ purchasing powers, agricultural production, private investment and agricultural infrastructure, in connection between Overseas Agricultural Development efforts of economic ministries for commercial purposes and International Development Cooperation efforts in agriculture for humanitarian purpose (Ministry of Foreign Affairs). Originality: Korea’s food security is threatened by COVID-19, diplomatic conflicts and associated recent recess of globalization. To cope with the situation, a stable channel of food provision through overseas farms, marketing channels and infrastructure such as grain elevators is necessary. Therefore, reflecting on the differences in the target countries’ overall economy and agricultural sector is necessary, to link Korea’s commercial agricultural investment overseas and international development cooperation efforts for agriculture such as ODA. Methodology: 12 variables that represent target countries’ economic capacity, competitiveness of agricultural sector and food marketing, and attractiveness of private investment are used for Cluster Analysis and One Way ANOVA. Result: 6 clusters are identified, grouping the target countries into Russia, China, Ukraine and other 3 country groups. Then, more detailed analyses are done to identify the characteristics of groups’ economical, political and agricultural aspects. Among the 12 variables, private investment attractiveness and agricultural infrastructure are found to be statistically significant variables that differentiate the clusters or groups. Conclusions and Implication: Group (A) are Central Asian land-locked countries. Group (B) are agricultural countries around Caspian Seas. Group (C) are identified as emerging countries with stable economic growth. According to these characteristics, strategies of EDCF are proposed for the New Northern Policy. They are; (1) focusing on specific subsectors of agriculture, (2) improving financial accessibility of investing companies through offering new financial services, (3) providing Development Finance that allows low-concessional loans for middle-upper countries through supporting the interest difference using government budget.
적변에 따른 연근별 산양삼 생육특성과 진세노사이드 함량
김기윤(Kiyoon Kim),어현지(Hyun-Ji Eo),김현준(Hyun-Jun Kim),엄유리(Yurry Um),정대희(Dae-Hui Jeong),허정훈(Jeong-Hoon Huh),전권석(Kwon-Seok Jeon) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.5
The aim of this study was to investigate the growth characteristic and ginsenoside contents of 7 and 13 year-old wild-simulated ginseng (Panax ginseng C.A. Meyer) according to rusty root. The root growth characteristics of wild-simulated ginseng were did not shows significant difference according to the rusty root. The results of ginsenoside contents of wild-simulated ginseng according to rusty root, ginsenoside Rb1 and Rg1 of 7 year-old wild-simulated ginseng were had shows a significantly higher in rusty root compare to general root. On the other hand, ginsenodie Rc, Rd, Re and Rg2 were significantly higher in gerneral root. In the case of 13 year-old wild-simulated ginseng, the contents of ginsenoside did not shows to significant difference according to rusty root. The results of correlation analysis between growth characteristics and ginsenoside content of general root, the ginsenoside Rb2, Rc, Rd, Rf, Rg1 were positive correlation with root length, while as the ginsenoside Rd of rusty root was shows significantly negative correlation with root length. The results of this study was might be able to improve awareness of consumer related to rusty root of wild-simulated ginseng. Moreover, might be help to provide useful information on the establish quality standard and distribution system of wild-simulated ginseng.