• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2001년도 The 8th International Symposium
• /
• pp.92-92
• /
• 2001

• 동아시아경상학회지
• /
• 제8권1호
• /
• pp.41-55
• /
• 2020

Purpose - This paper tries to analyze the factors affecting the utilization of electronic trade of small and medium enterprises and examine how these factors affect the performance of small and medium enterprises. In addition, the leading factors affecting the level of e-trade utilization of small businesses were analyzed by dividing them into external environmental factors affecting the external business and internal resources of the companies themselves Research design, data, and methodology - With a sample of 223 small and medium-sized export firms from South Korea, this study investigates the antecedents of the utilization level of e-Trade such as information exchange, innovation orientation, absorptive capacity and trust by hierarchical regression analysis. Results - The results show that innovation orientation was shown to have a positive effect on e-trade utilization and absorptive capacity has a positive effect on e-trade utilization. Also, information exchange with stakeholders has a positive impact on e-trade utilization. Conclusions - Internal and external factors of companies have a positive effect on the utilization of e-trade. It also showed that the increased utilization of electronic trade had a positive effect on trade performance. Thus, the findings provide policy-makers with implications of the importance of activating e-trade, and furthermore, significant implications for exporter performance.

• 융합경영연구
• /
• 제8권1호
• /
• pp.36-49
• /
• 2020

Purpose - This study investigates factors that affected the utilization of trade support policies and further analyzed how the utilization of trade support policies affected export performance. Research design, data, and methodology - With a sample of 223 small and medium-sized export firms from South Korea, this study examines the determinants of the utilization level of trade support system such as export market orientation, learning orientation, network capability and environmental uncertainty by regression analysis. Results - Export market orientation have a positive effect on the utilization of the trade support system and there is positive relationship between learning orientation and the utilization of trade support system. And network capabilities have had a positive impact on the utilization of the trade support system but there is no relationship between environmental uncertainty and the utilization of trade support system. The utilization of the trade support system had a positive effect on export performance. Conclusions - The internal and external factors of the organization have affected small and medium-sized export firms use of trade support systems. The utilization of trade support system can enhance positive export performance by providing valuable information and resource to external knowledge and also to complementary resources from the external partners.

• 자원리싸이클링
• /
• 제29권6호
• /
• pp.15-26
• /
• 2020

최근 미세플라스틱의 발생 측면에서 폐플라스틱의 친환경적 처리에 대한 관심이 증대하고 있다. 이에, 폐플라스틱의 재활용이 폐기물 간소화, 이산화탄소 배출 감소 및 부가가치 제품 재생산의 이점을 제공하기 때문에 매우 중요하다고 할 수 있다. 특히, 친환경적인 폐플라스틱의 재활용을 위해서는 물리적 선별방법을 통해야 하며, 그 중에서도 폐플라스틱내의 재질별 분리가 가능한 부유선별이 물질재활용 측면에서 매우 효과적인 분리방법으로 잘 알려져 있다. 따라서, 본 총설에서는 혼합 폐플라스틱의 효과적인 재질 분리를 하기 위한 부유 선별의 연구 동향을 조사하였다. 추가적으로 보고된 연구결과들을 통하여 플라스틱의 원재료인 폴리머로부터 기능성 신소재로서의 활용에 대한 접근방법을 요약 정리하였다.

• 기술혁신연구
• /
• 제8권1호
• /
• pp.125-153
• /
• 2000

This study empirically examined the relationships between the growth stage of ventures and their business characteristics such as KSFs, environmental attributes, CEO roles, and utilization of external resources, based on data from 2,515 Korean ventures. ANOVA results of this study revealed that 1) Key success factors appeared different across the different growth stage of Korean ventures. Financial resources were most critical in the early stage of growth, while the foreign technology licensing appeared to be most important for the success of ventures at later growth stage; 2) As the Korean ventures grew, their environments became more dynamic and hostile; 3) Strategic and external activity roles of top management were critical in younger ventures, while roles for marketing and production were important in older ventures; and 4) Utilization of external resources were more frequent at the later stage of ventures than at the early stage of growth. Based on the research, this study offered several managerial, theoretical, and policy implications.

• 한국농공학회:학술대회논문집
• /
• 한국농공학회 2003년도 학술발표논문집
• /
• pp.291-294
• /
• 2003

The Water resources utilization pattern of Jangsung reservoir was studied. The observed precipitation and existing reservoir operation data such as irrigation amount, reservoir storage, river maintenance requirement, flood control discharge were collected for ten years period and analyzed. Major findings of this study are as follows: The observed average, minimum, maximum annual precipitation were 905.1mm, 1,977.3mm, 1,554.3mm during study period, respectively. The average annual irrigation amount was 554.5mm, irrigation amount of drought years of '92 and '94 was 604.6mm, 679.2mm, respectively. However, irrigation amount of extended drought year '95 was 384.9mm. It showed that supplying capacity of Jangsung reservoir was limited when consecutive 2 year drought occurred. The main water resources usage of Jangsung reservoir was irrigation, but flood control discharge exceed irrigation amount exceptionally when high precipitation occurred. The reservoir operation record revealed that discharge for river maintenance was delivered even drought years.

• 농촌지도와개발
• /
• 제17권4호
• /
• pp.877-895
• /
• 2010

Recently, many of rural villages are pursuing rural tourism to attract citizens and increase nonfarm income. A key of rural village plan utilizing rural amenity resources is to make sustainable villages considering regional character and potential for development that will work for the residents. In this study, we analyzed Rural Amenity Design Competition winning works which will be possible solutions to make proper plans for rural village and applied these contents to study areas. Three villages were selected as study areas and more than two types of amenity utilization were settled for planning direction for each village to have specialized and unique plan. Through Rural Amenity Design Competition which is being held annually, we will be able to get more data throughout rural area and verify trend of rural village planning. By selecting theme of the competition reflects needs of the time, more detailed and original ideas on amenity village planning can be drawn and this will contribute to proper and stable village planning.

• Journal of the Korean Wood Science and Technology
• /
• 제45권1호
• /
• pp.96-106
• /
• 2017

본 연구는 hydrodistillation 방법으로 추출한 새덕이 잎 정유의 화학적 조성과 항산화활성을 조사하였다. 새덕이 잎 정유의 화학적 조성은 GC/MS로 분석하였다. 새덕이 잎 정유의 주요 구성성분은 cis-ocimene (11.00%), trans-ocimene (9.65%), elemol (9.15%), ${\beta}$-elemene (8.75%), germacrene-D (7.55%), trans-caryophyllene (5.90%), ${\gamma}$-elemene (5.40%), ${\tau}$-muurolol (4.95%)인 것으로 나타났다. 새덕이 잎 정유의 항산화 활성은 총 페놀함량 분석, DPPH radical 소거활성, ABTS radical 소거활성, ferric reducing antioxidant power (FRAP) 분석을 통해 평가하였다. 정유의 총 페놀 함량은 $136.7{\pm}0.13\;mg\;GAE/g$으로 분석되었으며, 50% DPPH radical을 소거하는데 필요한 정유의 효과 농도($EC_{50}$ value)는 $639.33\;{\mu}g/m{\ell}$로 나타났다. 또한, ABTS radical 소거활성은 농도 의존적으로 나타났으며, FRAP value는 $31.21{\pm}0.12{\mu}M$ $FeSO_4{\cdot}7H_2O/g$이었다. 이러한 결과는 새덕이 잎 정유가 건강에 대해 중요한 이점과 기능을 가질 수 있는 항산화 활성을 가지고 있다는 것을 제안한다.

• Animal Bioscience
• /
• 제35권11호
• /
• pp.1711-1724
• /
• 2022

Objective: The present study was to evaluate the effects of different rapeseed meal substitution (RSM) and glutamine (Gln) supplementation on growth performance, intestine morphology, and intestinal mucosa barrier of broilers. Methods: Four hundred and twenty Qiandongnan Xiaoxiang Chicken at 1 day of age with similar weight were chosen and were randomly assigned into 7 groups, consisting of 10 replicates per group and 6 broilers per replicate. Three groups were provided with diets separately containing 0%, 10%, and 20% RSM, and the other four groups were fed with diets separately supplemented with 0.5% and 1% Gln based on the inclusion of 10% and 20% RSM. At 21 and 42 days of age, 10 broilers per group were chosen to collect plasma and intestinal samples for further analysis. Results: The results showed that 10% RSM decreased average daily feed intake (ADFI) and average daily weight gain (ADG) of broilers at 21 days of age (p<0.05). Furthermore, both ADFI and ADG of broilers at 21 and 42 days of age were decreased by 20% RSM, while feed conversion ratio (FCR) was increased (p<0.05). Besides, 10% RSM resulted in lower intestinal villus height and the ratio of villus height to crypt depth, deeper crypt depth (p<0.05), combined with the lower mRNA expressions of occludin, claudin-1, and zonula occludens-1 (ZO-1) in broilers at 21 days of age (p<0.05). Similar results were also observed in broilers at 21 and 42 days of age fed with 20% RSM. However, 1% Gln improved the growth performance of broilers fed with 10% and 20% RSM (p<0.05), ameliorated intestine morphology and elevated mRNA expressions of occludin, claudin-1 and ZO-1 (p<0.05). Conclusion: In conclusion, the increasing inclusion of RSM resulted in more serious effects on broilers, however, 1.0% Gln could reverse the negative effects induced by the inclusion of RSM.

• 자원리싸이클링
• /
• 제13권6호
• /
• pp.43-48
• /
• 2004

본 연구는 NdFeB 영구자석 폐 스크랩 분말을 600$^{\circ}C$에서 산화배소한 후, 초산을 사용한 약산침출을 수행하여 네오디뮴을 선택적으로 분리하고자 하였다. 산화배소된 스크랩 분말의 초산침출 결과, 네오디뮴의 침출율 90% 이상을 얻기 위한 조건은 반응온도 80$^{\circ}C$, 반응시간 3시간 그리고 광액농도 35%이었다. 초산 침출용액으로부터 분별결정화에 의한 네오디뮴아세테이트 회수 시, 증발후 여액의 네오디뮴 조성은 243 g/l 네오디뮴아세테이트의 초산에 대한 용해도(260 g/l)에 근접하는 것을 알 수 있으며, 침출용액으로부터 네오디뮴아세테이트 결정회수를 위한 최적 조건은 온도 100$^{\circ}C$ 이상에서 초기 침출용액 부피에 대하여 약 1/5 정도 농축하는 것이 적절하였다. 이 때 침출용액 대비 약 67.5%의 네오디뮴을 분리하였으며, 농축여액에 잔존하는 나머지 네오디뮴은 옥살산과 반응시켜 전량 회수할 수 있었다.