• Journal of Animal Science and Technology
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• 제57권5호
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• pp.20.1-20.8
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• 2015

Background: In order to prepare for the regulation about the limit of manure production, the status of manure management and the amount of nutrients in the compost discharged from Hanwoo breeding farm shall be known. This study aimed to find the practical amount of nutrients (volatile solids, VS; total nitrogen, T-N; total phosphorus, T-P) in manure, and compost samples collected from 40 Hanwoo breeding farms and the loss of the nutrients was calculated during the composting period, which supports to develop nutrient loading coefficients (NLCs) for each nutrient. Results: Although the addition of bedding materials for composting caused the increase of the VS amount before composting, the comparison of VS, N, and P amounts in between manure and compost showed the lower VS by 4 % as well as T-N and T-P amounts by 69 and 40 %, respectively, of which values were corresponded with the NLCs of 0.96, 0.31, and 0.60 for VS, N, and P, respectively, based on the questionnaire, and sample analyses. Considering with the environmental impacts including land application from Hanwoo manure, P loss should be zero before and after composting. In this regard, nitrogen loss of 50 % occurs and VS was increased by 30 %. In addition, feasible cases for the calculations based on the notification from Ministry of Environment were compared with this study. Conclusions: The development of NLCs from Hanwoo manure in this study implies that the loss of nutrients in manure occurs during the composting or storing period. The mass balances of N and P from livestock manure to land application may be overestimated over the practical values. It is necessary to build up the database about each livestock category other than Hanwoo.

• 한국식품조리과학회지
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• 제32권3호
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• pp.299-306
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• 2016

Purpose: Curcuma aromatica Salisb., commonly known as turmeric, has long been used as a powerful health-promoting anti-inflammatory or antioxidant that supports cellular health of the human body. The objective of this study was to compare the antioxidant and antimicrobial activities of the samples with or without fermentation. Methods: Antioxidant activities of the samples were compared using total phenol, flavonoid contents, 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) cation radical scavenging activity and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. Antimicrobial activities were also examined using the paper disc method and minimum inhibitory concentration (MIC). Results: Organic acid content of the C. aromatica Salisb. fermented with Aspergillus oryzae (FCAS) showed a significantly higher value of 0.41% than that of the typical sample without fermentation (CAS) which showed a value of 0.27% (p<0.001). Total phenol and flavonoid contents of the CAS and FCAS did not show significant differences. However, ABTS cation radical scavenging activity and DPPH radical scavenging activity were significantly increased in the samples with fermentation (p<0.001, p<0.01), respectively. The samples of the disc showed inhibited growth of gram positive Bacillus cereus (FCAS 3.70 cm and CAS 2.73 cm) and Staphylococcus aureus (FCAS 2.70 cm and CAS 1.97 cm). MIC of the FCAS (0.25-0.50, 0.5-1.00 mg/mL) was higher than that of the CAS (1.00-2.00, 2.00-3.00 mg/mL), respectively. Conclusion: C. aromatica Salisb. with fermentation showed higher antioxidant and antimicrobial activities in this study. Thus we conclude that fermentation can be a helpful process for more effective application of C. aromatica Salisb. with fermentation in the health-promoting food industry.

• 한국문헌정보학회지
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• 제55권3호
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• pp.321-342
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• 2021

본 연구는 변화하는 연구 환경을 대비하고 연구의 전 과정을 체계적으로 지원하기 위해 '연구 수명주기(research lifecycle)'를 기반으로 대학도서관 연구지원서비스 모형을 개발하는 것을 목적으로 한다. 연구목적 달성을 위해 먼저 문헌고찰과 서비스 수요자 대상 설문조사를 통해 연구의 각 단계에서 지원해야 할 연구지원서비스의 요소를 구성하였다. 다음으로 효과적인 서비스 운영을 위해 서비스 제공자를 대상으로 설문조사와 심층면담을 실시하였다. 그 결과 20개 핵심 요소를 포함한 6단계의 50개 요소로 구성된 '연구지원서비스 요소 모형'과 정부 및 유관기관, 대학도서관, 대학 내 기관 간 유기적인 체계로 구성된 '연구지원서비스 운영 체계 모형'을 제안하였다.

• 멤브레인
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• 제33권6호
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• pp.383-389
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• 2023

폴리에틸렌 글라이콜 다이아크릴레이트 (polyethylene glycol diacrylate, PEGDA) 하이드로젤을 정삼투 (forward osmosis, FO) 분리막의 지지체로 사용하여 고성능의 FO 분리막을 제조하였다. 친수성의 PEGDA를 자외선 조사를 통한 중합과 그에 따른 상분리를 이용하여 다공성으로 구조화하였고, 매우 높은 친수성을 가진 하이드로젤 지지체를 얻을 수 있었다. 제조된 친수성 PEGDA 지지체 위에 높은 수투과도와 염 선택도를 확보하기 위해서 일반적인 계면중합 방식이 아닌 톨루엔을 유기 용매로 사용한 계면중합 방식(TIP)으로 선택층을 도입하였다. 제조된 PEGDA 지지체 기반 분리막은 1.0 M NaCl 유도 용액과 증류수 유입수를 통한 FO 성능 측정에서 상용 HTI 분리막들에 비해서 매우 높은 수투과도와 낮은 염 선택도를 나타내었다. 본 연구를 통해, 기존의 소수성 지지체를 추가적으로 개질하는 방식이 아닌 새로운 물질과 제조방식을 사용한 FO 지지체의 가능성을 제시하고자 한다.

• 한국환경과학회지
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• 제33권6호
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• pp.417-425
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• 2024

This study investigated the effects of various planting models on the joint cultivation of eggplant (Solanum melongena) and marigold (Tagetes erecta)to enhance sustainable rooftop urban farming. Rooftop agriculture is increasingly valued to boost the food supply and benefit the environment. Integrating such practices into urban planning is viewed as a way to sustainably manage resources and improve the food-energy-water cycle in cities. The experiment was conducted on a rooftop in Chungju, South Korea from May to August. Four different planting setups were used: central eggplant with peripheral marigold (SET), eggplant with a protective net (SIC), central marigold with peripheral eggplant (TES), and control with only eggplant (CON S). These models tested the effects of companion planting versus monoculture using a lightweight soil mix ideal for rooftops made from cocopeat and perlite and enriched with organic fertilizer. Measurements focused on soil conditions and plant health and assessed soil temperature, moisture, conductivity, plant height, width, and leaf size. The results indicated that the SET modelyielded the best growth. This setup benefited from marigold pest control properties and its ability to improve soil conditions by enhancing moisture and nutrient levels and aiding eggplant growth. These findings underscore the potential of mixed planting on rooftops and suggest that such approaches can be effectively incorporated into urban agriculture to boost yield and environmental sustainability. This study supports the idea that diverse planting methods can significantly affect plant growth and promote urban greening and food security.

• 한국컴퓨터정보학회논문지
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• 제29권7호
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• pp.129-137
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• 2024

사회적 기업은 경제적 목적과 사회적 목적을 동시에 달성해야 하는 이중적 구조로 인해 높은 비용구조와 비효율적 운영, 대부분 인적 자원과 물적 자원이 부족한 상태에 놓여 있다. 이러한 문제를 해결하기 위하여 사회적 기업 간의 자원 및 정보 공유 등의 협업은 중요한 관리적 문제로 주목받고 있다. 이러한 사회적 기업 간의 공동 프로젝트 추진, 자원 부족(자금, 기술, 인력, 장비 등)의 문제 해결, 기업간 의사소통 채널 구축 및 유기적 정보공유 등을 원활하게 지원하는 수단으로서 온라인 플랫폼(online platform)의 구축 및 운영이 중요시되고 있다. 이러한 배경에 따라 본 연구는 사회적 기업의 협업을 지원하는 온라인 플랫폼의 요구특성이 기업의 특성(일반 특성, 협업 특성)에 따라 어떻게 달라지는가를 실증적으로 규명한 결과, 규모에 따라 통계적으로 유의한 수준에서 차이가 존재하고 있음을 확인할 수 있었다. 이러한 결과는 향후 국내 사회적 기업의 협업 지원 온라인 플랫폼의 관리방안 도출, 플랫폼을 이용한 협업 증대 방안 모색 등에 있어서 유용하게 활용될 수 있을 것으로 기대된다.

• 유통과학연구
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• 제12권4호
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• pp.65-72
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• 2014

Purpose - Because of the emphasis on the necessity of academic-industrial cooperation between companies and universities, there are various ongoing academic-industrial cooperation programs led by the government. As government actively supports such cooperation as policy,and universities vitalize new technology development, academic-industrial cooperation between companies and universities is being recognized as an important growth engine for companies the competitiveness of academic-industrial cooperation is also attracting more interest. The government has vitalized human resource fostering, practical R&D, and technology transfer to companies since 2012 by executing a "leading university fostering project for academic-industrial cooperation." Based on an organic interlink among universities, industry, and research institutes, the government also created and is promoting several models of such cooperation between companies and universities to support shared growth of industry and local universities. The purpose of academic-industrial cooperation is growth and benefit fromtechnology development, technical cooperation, and technology transfer between companies and universities. Research design, data, and methodology - As more academic-industrial cooperation efforts are ledby companies due to the limitation in technology-focused commercialization cooperation, the academic-industrial cooperation system became fragmented and it is losing the potential for future advancement. Specifically, as differences between universities grow, academic-industrial cooperation between companies and universities based on new technology from universities is finding difficulty advancing,while systematic support from companies to enhance the performance of businesses created by academic-industrial cooperation is also insufficient. Accordingly, this study established a growth model for the advancement of academic-industrial cooperation between companies and universities and suggested a plan to strengthen the competitiveness and promote the future advancementof academic-industrial cooperation between companies and universities by analyzing the current situation of such cooperation and diagnosing its issues. Results - This study explored the concept and current status of academic-industrial cooperation relationships and analyzed related issues. For such cooperative organizations to be competitive, the employment environment of professional human resources for academic-industrial cooperation should be improved and measures to secure professional resources should be taken as early as possible. Though the academic-industrial cooperation now is being led by government, there is a limitation based on business models, which require creation of profit; however, an academic-industrial cooperation model still cannot stand alone without the support of government. This study also pointed out that a having only a plan to build competitiveness of companies and universities for academic-industrial cooperation is not sufficient. Conclusions - In order to increase the competitiveness of academic-industrial cooperation, a detailed growth-sharing model for academic-industrial cooperation should be developed, and there should be more joint development processes for the advancement of such cooperation in which the need for technology development can be verified in advance. In addition, beyond focusing on technology-focused academic-industrial cooperation, a network between companies and universities searching for ideas for academic-industrial cooperation in the fields of human and social aspects should be created. A new academic-industrial model linking current cooperation between companies and universities to the local area should be built based on such academic-industrial cooperation in human and social fields.

• 한국조리학회지
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• 제19권4호
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• pp.25-39
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• 2013

본 연구는 조리 외식전공 대학생을 대상으로 청년사업가를 위한 성장요인이 창업역량과 창업의도에 미치는 영향력을 조사하고 전공적합성에 따른 조절효과에 대한 실증분석을 실시하였다. 총 327명의 표본을 대상으로 측정항목의 신뢰성과 타당도를 분석하고 구조방정식을 통해 2개의 가설을 검증하였으며, 최종모형 적합도는 $x^2$=495.217(p<.001), df=231, CMIN/DF 2.144, GFI .902, AGFI .878, NFI .911, CFI .954, RMSEA .067 등으로 조사되었다. 연구결과, 청년사업가의 성장요인과 창업역량과의 영향 관계에서 성장요인 중 정책지원(${\beta}$=.457, p<.001), 기술지식(${\beta}$=.244, p<.01), 역할모델(${\beta}$= .242, p<.05) 등이 창업역량에 정(+)의 영향력을 미치는 것으로 조사되었으며, 창업역량(${\beta}$= .787, p<.001)은 창업의도에 정(+)의 영향관계를 주는 것으로 조사되어, 성장요인과 창업역량, 그리고 창업의도간의 유기적인 인과관계를 검증하였다. 또한 창업역량과 창업의도간의 관계에서 전공적합성의 조절효과를 검증한 결과 전공적합도가 높을수록 창업의도를 높이는 요인으로 분석되어 조절효과가 존재하는 것으로 조사되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권5호
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• pp.3243-3254
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• 2013

It is well known that increased incidences of lung, skin, and bladder cancers are associated with occupational exposure to PAHs. Animal studies show that certain PAHs also can affect the hematopoietic and immune systems and can produce reproductive, neurologic, and developmental effects. As a consequence, several studies have been attempted to investigate the fate of PAHs in atmospheric environment during the past decades. However, there is still a lack of information in regard to the atmospheric concentration of PAHs during the "Bon Fire Night". In this study, twenty-three polycyclic aromatic hydrocarbons and twenty-eight aliphatics were identified and quantified in the $PM_{10}$ and vapour range in Birmingham ($27^{th}$ November 2001-$19^{th}$ January 2004). The measured concentrations of total particulate and vapour (P+V) PAHs were consistently higher at the BROS in both winter and summer. Arithmetic mean total (P+V) PAH concentrations were $51.04{\pm}47.62$ ng $m^{-3}$ and $22.30{\pm}19.18$ ng $m^{-3}$ at the Bristol Road Observatory Site (BROS) and Elms Road Observatory Site (EROS) respectively. In addition arithmetic mean total (P+V) B[a]P concentrations at the BROS were $0.47{\pm}0.39$ ng $m^{-3}$ which exceeded the EPAQS air quality standard of 0.25 ng $m^{-3}$. On the other hand, the arithmetic mean total (P+V) aliphatics were $81.80{\pm}69.58$ ng $m^{-3}$ and $48.00{\pm}35.38$ ng $m^{-3}$ at the BROS and EROS in that order. The lowest average of CPI and $C_{max}$ measured at the BROS supports the idea of traffic emissions being a principle source of SVOCs in an urban atmosphere. The annual trend of PAHs was investigated by using an independent t-test and oneway independent ANOVA analysis. Generally, there is no evidence of a significant decline of heavier MW PAHs from the two data sets, with only Ac, Fl, Ph, An, 2-MePh, 1+9-MePh, Fluo and B[b+j+k]F showing a statistically significant decline (p<0.05). A further attempt for statistical analysis had been conducted by dividing the data set into three groups (i.e. 2000, 2001-2002 and 2003-2004). For lighter MW compounds a significant level of decline was observed by using one-way independent ANOVA analysis. Since the annual mean of $O_3$ measured in Birmingham City Centre from 2001 to 2004 increased significantly (p<0.05), it may be possible to attribute the annul reduction of more volatile PAHs to the enhanced level of annual average $O_3$. By contrast, the heavier MW PAHs measured at the BROS did not show any significant annual reduction, implying the difficulties of 5- and 6-ring PAHs to be subject to photochemical decomposition. The deviation of SVOCs profile measured at the EROS was visually confirmed during the "Bonfire Night" festival closest to the $6^{th}$ November 2003. In this study, the atmospheric PAH concentrations were generally elevated on this day with concentrations of Fl, Ac, B[a]A, B[b+j+k]F, Ind and B[g,h,i]P being particularly high.

• 벤처창업연구
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• 제6권1호
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• pp.133-158
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• 2011

2030년대는 BT시장이 활짝 열리는 시대로 고도화된 IT기술, 데이터 해석기술, 집적회로개발기술, 생화학기술 등 모든 영역의 기술이 필요할 것이며, 앞으로의 기술개발은 융합을 전제로 하여 IT와 BT의 융합이 관건이 될 것으로 기술개발의 시너지를 내기 위해서는 관련 산업과 대학이 물리적으로 적정한 위치에 임해야 할 것이다. 우리나라에는 2009년 말 현재 819개의 산업클러스터가 만들어졌으며, 한국산업단지공단이 집적화 된 산업단지에 여러 가지 지원시설, 지원제도 등을 제공하고 있으나 기술융합을 위한 지식재산서비스에 관한 지원제도는 미미하거나 거의 없는 실정에 있다. 이를 위해 우리나라 산업단지의 현재기능을 살펴보고 문제점을 분석하여 산업클러스터 내의 기업들이 서로 유기적인 협력을 통하여 융합기술 개발의 시너지 효과를 극대화 할 수 있는 길을 모색하며, 특히 한국산업단지공단에 꼭 필요하다고 판단하는 지식재산 관련 지원제도(지식재산지원본부)의 기능과 조직구성에 대한 개념과 산업클러스터 내의 기업에게 지식재산전략 수립을 지원할 수 있는Flow를 제안하여 산업클러스터의 지식재산서비스 지원방안을 제시하였다. 또한 정부에서 다양하게 시행되고 있는 지식재산 관련 제도와 정책이 산업단지공단에 입주해 있는 중소기업에게 가시적인 효과를 기대할 수 있는 방안을 제시하였다.