• Korean Journal of Plant Resources
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• v.32 no.5
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• pp.433-441
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• 2019

This study describes a preliminary evaluation of the anti-inflammatory activity and anti-atopic activity of Phormium tenax leaf extracts. P. tenax leaf was extracted using 70% ethanol and then fractionated sequentially with n-hexane, methylene chloride, ethyl acetate, n-butanol. In order to effectively screen for anti-inflammatory agents, we first investigated the inhibitory effects of P. tenax leaf crude extracts and solvent fractions on production of pro-inflammatory factors[nitric oxide(NO), prostaglandin $E_2(PGE_2)$, inducible nitric oxide synthase(iNOS) and cyclooxygenase-2(COX-2)] and pro-inflammatory cytokines [tumor necrosis $factor-{\alpha}(TNF-{\alpha})$, interleukin-6(IL-6) and $interleukin-1{\beta}(IL-1{\beta})$] in lipopolysaccharide(LPS)-stimulated RAW 264.7 cells. In addition, we also evaluated of their inhibitory effect on the atopic dermatitis-like inflammatory markers such as macrophage-derived chemokine(MDC) and thymus and activation-regulated chemokine(TARC) in HaCaT cells. Among the five solvent fractions of P. tenax, methylene chloride and ethyl acetate fractions inhibited production of pro-inflammatory factors and pro-inflammatory cytokines in a dose dependent manner, respectively. These fractions were also showed inhibitory activity for MDC and TARC expression levels in $IFN-{\gamma}-stimulated$ HaCaT cells, respectively. These results suggest that P. tenax have significantly effects of anti-inflammatory activity and anti-atopic activity that might be beneficial for the topical treatment of inflammatory skin disorders.

• Journal of the Korea Organic Resources Recycling Association
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• v.31 no.3
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• pp.43-53
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• 2023

This batch experiment evaluated the impacts of major plant nutrient releases by applying the modified Hyperbola model on the leachates and N₂O emissions from incorporated rice hull biochar with organic fertilizer materials. The treatments consisted of the control as incorporated with organic fertilizer materials, the incorporated rice hull biochar with organic fertilizer materials, and the incorporated plasma-activated rice hull biochar with organic fertilizer materials under redox conditions. The results indicated that the maximum release amount of NH₄-N was 3486.3 mg L^-1 in the control, and their reduction rates of NH₄-N, NO₃-N, PO₄-P, and K were 8.0%, 17.5% 44.3.0% and 8.7%, respectively, relative to the control. In the control, the highest soluble amount of PO₄-P was 681.0 mg L^-1. The estimations for accumulated NH₄-N, NO₃-N, PO₄-P, and K-releases in all the treatments were significantly (p<0.01) fitted with a modified Hyperbola model. For greenhouse gas emissions, the lowest cumulative N₂O was 340.4 mg kg^-1 in the soil incorporated with plasma-activated rice hull biochar, and the reduction rates were 27.8% and 86.4% in the rice hull biochar and plasma-activated rice hull biochar treatments, respectively, compared to the control. Therefore, it concluded that the incorporated rice hull biochar can be especially useful for controlling PO₄-P release and N₂O emissions for bio-fertilizer applications.

• Journal of the Korean Society of Food Culture
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• v.25 no.3
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• pp.350-356
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• 2010

When extracts of KMG (Korean mountain ginseng) leaf tea and fermented KMG leaf tea were compared, the fermented KMG leaf tea extract showedhigher activity at each stage of density. Among the material groups, the KMG extract hadthe least profound SOD-like activity, and similar SOD-like activities were noted in the fermented KMG, KMG leaf tea, and fermented KMG leaf tea extracts. With regard to nitrite scavenging ability at a pH of 1.2, the KMG, fermented KMG, and KMG leaf tea groups exhibited similar results, and at pH 3.0, the KMG and KMG leaf tea extract groups exhibited more profound nitrite scavenging ability compared to the fermented groups. In the case of HeLa cell treatments, the KMG and fermented KMG leaf tea extracts exhibited cancer cell propagation restraint rates in excess of 30%, at a density of 1 mg/mL. And MCF-7 cells treated with fermented KMG and KMG leaf tea showedsimilar propagation restraint rates at more than 27% of cancer cells, at a density of 1 mg/mL. Among the materials, the KMG extract hadthe lowest cancer cell propagation restraint rate at 21%, and the fermented KMG leaf tea extract had the highest rate at more than 70%.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.419-422
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• 2012

본 연구는 기술개발지원사업의 선정 평가지표를 개발하고, 사례에 적용하여 그 타당성을 파악하고 있다. 개발된 선정평가지표의 기업선정순위와 기존 선정평가지표의 기업선정순위를 비교하여 성과를 낸 기업의 순위를 어떤 선정평가지표가 더 정확히 유추해 냈는지를 확인하고 있다. BSC 및 AHP기법을 이용하여 기술개발지원사업 선정평가지표를 개발하였다.

• KIPE Magazine
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• v.16 no.1
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• pp.21-25
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• 2011

로봇산업은 통섭(統攝, Consilience)의 시각에서 접근해야 할 대표적인 미래지향형 산업이다. 로봇은 단일 제품을 이루는 부품의 설계, 생산, 유통, 관련 소프트웨어, 서비스/콘텐츠 제작 운용뿐 아니라, 건설, 의료, 국방 등 제조영역을 너머 타산업과 융합해야함은 물론이고, 산 학 연 관의 전 분야에서 협력이 필요한 산업이다. 이 글은 제조용 로봇의 주요 기술 동향과 (재)경남테크노파크 로봇 메카트로닉스센터의 로봇기업지원 현황을 중심으로 우리나라 제조용 로봇산업에 대해서 접근한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.80-81
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• 2023

세계적으로 전기차 보급이 빨라지면서 한국 배터리 업계는 공격적인 생산시설 투자와 지속적인 기술개발을 통한 제품 신뢰성을 확보로 가파른 성장세 시현 중 ... 국제 전기차 판매량은 2019년 212만대에서 2020년 299만대로 늘어났으며, 2021년 상반기에도 전년 동기대비 168% 늘어난 263만대를 기록하는 등 성장세 지속... 성장을 주도하는 곳은 독일, 프랑스, 영국 등 유럽 지역으로 전기차 판매 침투율이 2019년 2~3%대에서 2021년 상반기에는 10% 중후반 수준으로 상승...

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.6 no.3
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• pp.19-42
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• 2011

This research focuses on the case studies for operating scheme of technology venture incubation centers located at science parks, technology parks, and foreign universities. Technology venture incubation centers in foreign countries commonly vitalize local economy, create job markets, and promote new venture industry. There is a distinct difference in many ways between foreign and domestic incubation centers. Foreign countries consider the position of incubation centers at national policy level. They characterize the operation of incubation centers into technology fields. They install the networks cooperating with experts and promote the management. Tenant companies moved in incubation centers enhance the degree of completion through industry-university cooperation. Universities and research centers utilize the results of R&D to make the business, accelerate to venture establishment with technical skills, and foster technology entrepreneurs by spin-offs. Through case studies we propose implications helpful to manage domestic technology incubation centers and management methods to be successful centers.

• Journal of the Korean institute of surface engineering
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• v.56 no.6
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• pp.451-456
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• 2023

Transparent conducting films having a three layered structure of ZnO/Cu/ZnO (ZCZ) were deposited onto the glass substrates by using RF and DC magnetron sputtering at room temperature. The emissivity and opto-electrical properties of the films were investigated with a varying thickness(5, 10, 15 nm) of the Cu interlayer. With increasing the Cu thickness to 15 nm, the films showed a enhanced electrical properties. Although ZnO 30/Cu 15/ZnO 30 nm film shows a lower resistivity of 5.2×10^-5 Ωcm, it's visible transmittance is deteriorated by increased optical absorbtion of the films. In addition, X-ray diffraction patterns indicated that the insertion of Cu interlayer improve the grain size of ZnO films, which is favor for the electrical and optical properties of transparent conducting films. From the observed low emissivity of the films, it is concluded that the ZCZ thin films with optimal thickness of Cu interlayer can be applied effectively for the car's window coating materials.

• 한국디지털정책학회:학술대회논문집
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• 2006.12a
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• pp.237-255
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• 2006

국내 정부부처 및 지역자치단체에서 수행하고 있는 연구개발 프로젝트의 선정과 평가에 관한 연구는 광범위하게 이루어지고 있다. 그러나 각 정부 부처별로 실시하는 평가프로세스와 지표의 경우 부처별 특성과, 과제의 특성을 반영하기 위한 프로세스와 지표를 개별적으로 보유하고 있으나, 과제의 평가를 수행하는 조직의 규모나 지역적 특색을 반영하기 어렵다.본 연구는 C 지역의 테크노파크(TechnoPark) 사업자가 수행하는 지역 자치단체 중심 R&D 프로젝트의 특성과 지역적인 특색을 반영한 평가관리 시스템을 개발하고자 한다. 본 연구에서는 먼저 국내 출연연구기관 및 정부부처에서 수행하는 평가시스템의 특성을 파악하고, 각 기관에서의 평가프로세스와 평가지표들을 조사하여 공통적/개별적 특성을 분류하였다. 분류된 프로세스와 지표들과 C 지역의 지역/산업적 특색을 분석하고 C 지역에서 수행한 3년간의 모든 과제에 대한 분석을 수행하여 지역적인 특색을 반영한 평가프로세스와 지표를 도출하였다. 또한 연구개발 프로젝트의 선정평가를 위한 사전 기술성 평가를 위한 기술가치평가와, 프로젝트의 수행결과 이후 나타나는 부가적인 효과를 분석하기 위하여, 프로젝트단위의 균형성과지표를 적용하여 프로젝트의 사후/추적관리 방안을 제시하고자 한다.

• Journal of the Korean Institute of Educational Facilities
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• v.15 no.4
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• pp.14-25
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• 2008

The Purpose of this study is to find out the renewal methods of Dae-jun railway station areas, focusing on the domestic/foreign case studies of the railway station areas and the possibility of the Industry-University-Institute collaboration in this area. As a result, this study shows that the revitalization for the impact area around rail transit station in the aspect of urban spatial structure, mixed land use, type of facilities and exchanging transit system of mass traffic etc, as well as such non-physical aspects as Industry-University-Institute collaboration and administrative planning. It does so by strengthening ties between hardware and software studies of urban planning and University Facilities planning. Finally this study suggested the strategy for the renewal of impact area around the rail transit stations.