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        검색결과 10

        1.
        2022.03 구독 인증기관 무료, 개인회원 유료
        WAIS in South Korea and WEU Inc. in Philadelphia hosting the 22nd World Peace Island Forum: Remembering Jeju King Cherry Trees Bio-diplomacy (1943) in Washington D.C. and the first Korean Congress Democracy (1919) in Philadelphia which organized by the Korean Provisional Government from March 22 to 24, 2022. We want to propose cultural historic events which connect American and Korean society, such as the Trip to Faith and Liberty Hall that relate to the integration processes of Korean and American Democracy. Dean Max Friedman of American University calls the Jeju King cherry trees cultural event bio-diplomacy among world citizens. In addition, the Korean embassy evaluated the cherry tree event as a new kind of bio-diplomacy approach which paves the way for understanding different cultures in different countries. The aim of this paper is to share present contexts and meanings about both the first Korean Congress Democracy (1919) and Bio-diplomacy (1943). We had also the 2022 GAN Korea Jeju to Philadelphia Webinar Conference: Diversity as a New Diversity for Global Ageing Network in New Normal: Jeju Village Healing, PASSi Asian Culture, Japanese Indigenous Peace Culture, and Busan Smart Health Care approach.
        4,000원
        2.
        2019.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The Fisher House, the first Korean Legation in the USA was located at 1513 O Street in Washington, D.C. This house was a three-story brick building with a height of 12.2m(8.84m up to the eaves) and a mansard roof. Facing the street, it is 7.32m (24 feet) wide and 23.6m(77.4 feet) depth. There is a long hallway after the entrance and a parlor with a grand fireplace next to it. This long hallway leads to a central hallway with another fireplace and a central staircase connecting the 2nd and 3rd floors. After the stairs a dining room is with a fireplace in the middle, which then leads to a pantry for dishes and the kitchen. It can also be argued that The Fisher House was the first Western-style residence for Koreans who were officially dispatched from the government. On the other hand, when living in The Fisher House, Park Jung-yang, who was sent on the three premises of the Yeonjak, directly experienced how the United States sought independence from the U.K. through the Declaration of Independence, Mount Vernon, the Washington monument, the Arlington National Cemetery, and battlefields. Even though he was summoned back to Korea by China in less than a year, Park Jung-yang actively supported the independence movement when he became acting prime minister in 1896. In this regard, The Fisher House arguably is the birthplace of Korea’s independence movement.
        4,000원
        3.
        2014.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The Korean Legation in Washington, D.C., is a proof that Emperor Kojong of Chosun Dynasty tried to establish relationship with the U.S. in 1891, that was before the declaration to establish Korean Empire. In that sense, the building is a historic place. The legation building is a symbolic place attesting to the turbulent history at the time of 1890 to 1910, when Korea had to suffer the forced treaty with Japan in 1905 and the annexation into Japan, and then to the 20th century up to the present time, 2014. The legation building can be turned into a space to host well-planned exhibits to show Korea's history and culture to local residents, foreign visitors to Washington, D.C., and overseas Koreans. The followings are the basic principles for the future use of the legation in line with the basic direction. The building's use should not be limited to museum, but should be flexible to accommodate various different practical usage. It is necessary to make the Korean Legation building that can incorporate the characters and the history through modern interpretation of the historicity of the place, the Korean culture, and historical events. The future usage of the Korean Legation building should enhance the value as a cultural heritage by linking the interpretation of the historical events and real life shown through exhibits, performance and people.
        4,300원
        4.
        2014.07 구독 인증기관 무료, 개인회원 유료
        미국 D.C. 연방항소법원의 Verizon 판결은 ISP에 대한 FCC의 관할권을 인정하고, 나아가 오픈 인터넷 정책이 가져올 선순환 효과를 일응 인정하였다는 점에서 매우 큰 의미를 지니지만, 한편 망 중립성을 구현함에 있어 ISP를 보편적 역무 제공자로서 취급해서는 안 된다는 과제를 남 겼다. 우리나라는 전기통신사업법에 방송통신위원회 의 관할권 및 보편적 역무 제공자로서의 취급에 관한 명문 규정이 마련되어 있어 망 중립성에 관 하여 실질적인 논의에 집중할 수 있는 환경이 마 련되었다. 비록 국내 인터넷 시장 환경이 미국에 비하여 경쟁적이기는 하나, 마찬가지로 경쟁적인 시장 환경을 갖추고 있는 EU에서도 적극적인 망 중립성 정책이 채택되고 있는 점을 감안하면 Verizon 판결의 의미를 축소하기는 어렵다. 오히 려 헌법적⋅경쟁법적⋅형사법적 관점에서 망 중립 성을 통해 추구할 수 있는 가치를 면밀히 검토해야 한다. 아울러 ISP와 CP 사이의 비용부담 문제로 나타 나고 있는 현재의 망 중립성 분쟁을 해결하기 위해 서는 QoS 및 전송차등화에 대한 적극적인 연구가 필요하다. QoS 보장 서비스가 망 중립성을 해한다 는 단편적인 시각에서 벗어나, 경쟁과 혁신을 촉진 할 수 있는 규제의 방향을 검토하는 것이 보다 현 실적인 접근법이라고 생각된다.
        5,400원
        5.
        2008.10 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        TiAlN films were deposited on WC-5Co substrates with different buffer layers by D.C. magnetron sputtering. The films were evaluated by microstructural observations and measuring of preferred orientation, hardness value, and adhesion force. As a process variable, various buffer layers were used such as TiAlN single layer, TiAlN/TiAl, TiAlN/TiN and TiAlN/CrN. TiAlN coating layer showed columnar structures which grew up at a right angle to the substrates. The thickness of the TiAlN coating layer was about 1.8μm, which was formed for 200 minutes at 300˚. XRD analysis showed that the preferred orientation of TiAlN layer with TiN buffer layer was (111) and (200), and the specimens of TiAlN/TiAl, TiAlN/CrN, TiAlN single layer have preferred orientation of (111), respectively. TiAlN single layer and TiAlN/TiAl showed good adhesion properties, showing an over 80N adhesion force, while TiAlN/TiN film showed approximately 13N and the TiAlN/CrN was the worst case, in which the layer was destroyed because of high internal residual stress. The value of micro vickers hardness of the TiAlN single layer, TiAlN/TiAl and TiAlN/TiN layers were 2711, 2548 and 2461 Hv, respectively.
        4,000원
        7.
        2001.07 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Antibacterial activities in each part of watercress(Oenanthe javanica D.C.) grown under different culture conditions were measured to determine the possibility to use watercress as a resource to develop the antibacterial substance. The leaves of watercress were extracted with methanol and the methanol extract was further fractionated with various organic solvents. Antibacterial activities against Shigella dysenteriae ATCC 9361 in all fractions were determined according to the agar diffusion method using paper disc. Methanol extract of watercress leaves was more effectively inhibited the growth of the tested bacteria than the extracts of roots or stems at the concentration of 0.5 g eq./disc, and the extract of watercress from Hwasoon was the most effective one as compared to others. Phenolic and neutral fractions fractionated from methanol extract of watercress had a considerable inhibiting activity on the growth of the bacteria, but acidic and basic fractions did not show any inhibitory effect. Minimum inhibitory concentrations of phenolic and neutral fractions against Shigella dysenteriae ATCC 9361 were 400 μg/disc and 550 μg/disc, respectively.
        4,000원
        8.
        2001.07 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Chemical properties of the different parts of watercress(Oenanthe javanica D.C.) grown and harvested from the culture fields under different cultivating methods were studied. In proximate analyses of watercress in parts, moisture contained more in stem than in root or in leaf, but crude protein and crude lipid contents were lower in stem than in root or in leaf. Crude ash in root contained up to about double amount in leaf or stem. Major mineral elements detected in watercress were Fe, Mg, Ca, and K, and their contents in root was higher than those in stem or leaf. Especially, Fe in root was significantly higher than that in stem or in leaf. Total free sugar composed mainly with fructose and glucose, was the highest in watercress from Hwasoon and followed the watercress from Jeonju and Donggok in order. Free sugar content was highest in leaf and the lowest in root. Major water-soluble vitamins were vitamin C, thiamin and biotin and the content of vitamin C was higher than others. These vitamins contained more in leaf than in stem or root. Niacin contained 6.09 mg/100 g in leaf of watercress from Hwasoon, which was much higher than others, but it was not detected in stem of watercress from Jeonju. Organic acids detected were oxalic acid, citric acid and malic acid and other 12 organic acids were not detected. In fatty acid composition, there were significant differences among watercresses from different parts and different culture fields. Linoleic acid, linolenic acid and palmitic acid were major fatty acids contained in watercress and it took about 80% of the total content. Amino acid content in leaf was higher than that in root and in stem. Glutamic acid and proline were major amino acids in stem of watercress from Jeonju and in stem of watercresses from Hwasoon and Donggok, respectively. In leaves of all three watercresses glutamic acid content was the highest.
        4,000원
        9.
        2019.12 KCI 등재 서비스 종료(열람 제한)
        Zanthoxylum piperitum D.C. (ZP) peels has been used as a natural spice and herb medicine for hypertension reduction, for strokes, and for its anti-bacterial and anti-oxidant activity. However, the anti-inflammatory mechanisms employed by ZP have yet to be completely understood. In this study, we elucidate the anti-inflammatory mechanism of ZP in lipopolysaccharide (LPS)-induced RAW264.7 cells. We evaluated the effects of ZP in LPS-induced levels of inflammatory cytokines, prostaglandin E2 (PGE2), and caspase-1 using ELISA. The expression levels of inflammatoryrelated genes, including cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS), were assayed by Western blot analysis. We elucidated the effect of ZP on nuclear factor (NF)-κB activation by means of a luciferase activity assay. The findings of this study demonstrated that ZP inhibited the production of inflammatory cytokine and PGE2 and inhibited the increased levels of COX-2 and iNOS caused by LPS. Additionally, we showed that the anti-inflammatory effect of ZP arises by suppressing the activation of NF-κB and caspase-1 in LPS- induced RAW264.7 cells. These results provide novel insights into the pharmacological actions of ZP as a potential candidate for development of new drugs to treat inflammatory diseases.
        10.
        2003.03 KCI 등재 서비스 종료(열람 제한)
        초임계추출(SFE)를 이용한 초피나무 과피 중 신미성분의 최적추출조건을 조사하였다. 최적 추출 압력은 300kg/cm2 이었으며 온도는 60℃, 추출 부피는 12 ml, flow rate는 3m/min 그리고 modifier로 사용한 methanol의 함량비율은 20%였다. 추출시간은 초반 20분 안에 대부분의 신미성분이 추출되었다. 또한 용매추출법과 비교한 결과 추출효능이 약 40%정도 향상되었고 시간은 20분으로 단축되었으며 유기용매 methanol은 12 ml밖에 소요되지 않을 뿐만 아니라 주요한 추출용매로 무독성 액화CO2를 사용하기에 독성 유기용매의 다량 사용을 피할 수 있는 친환경적이고 경제적인 방법으로 생각되어 진다.