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        검색결과 2,998

        1121.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to identify the characteristics of landscape elements and landscape management plans, by comparing and analyzing those plans within the preservation management plan of the 4 provincial parks in Jeollabuk-do Province. A landscape management plan includes both natural and cultural landscape plans, in similar proportions. While a forest’s vegetation landscape is presented as the main focus of natural landscape management, temple landscape and landscape control points (LCPs) are the main focus of cultural landscape management. Analysis of the specific plans by the landscape management strategies, shows that an enhancement approach was incorporated into most of them, while reduction, avoidance, compensation and remediation approaches were also included in part. Management of natural landscape elements such as vegetation and forests is included in the plans, which aim to improve the negative factors and conditions that impair the landscape, by means of reduction, remediation, and compensation. Cultural landscape management such as LCP management, and management of temple landscape and other scenic elements, can usually be categorized as either enhancement or avoidance strategies. The objective of such plans appears to be the improvement of negative landscapes, through management strategies of reduction, remediation, avoidance, and compensation, while also managing the positive landscape elements with enhancement strategies. Historic-cultural landscape elements were revealed to be highly prioritized in provincial parks, as these landscape types were managed in every park in this study. Vegetation landscape management was concentrated at Mt. Moaksan, and this indicates that the importance of vegetation landscape is relatively low within the natural landscapes of the Jeollabuk-do provincial parks. Overall, management in each park appears to be focused on a unique landscape type characteristic of that park, such as vegetation, topographical, or facilities landscape.
        4,000원
        1122.
        2016.12 구독 인증기관 무료, 개인회원 유료
        Abstract: This research of technology development for Hanok will study for large space Hanok over lOmeters, the New Hanok style public building, the residential efficiency upgrading about "Technology Development of Design and Construction for Large space Hanok over lOmeters." The technology development for large space Hanok will maintain the traditionality and will develop long-distance intercolurnniation over 1 Ometers through modem technology development. Also, the technology development for large space Hanok will develop the structure for the New Hanok style over 10 meters high and optimal construction technology. Moreover, the technology development for large space Hanok will standardize the developed large space Hanok technology. The New Hanok style public building will succeed the value of Hanok and technology and material will be free to use. So, the New Hanok style public building will be the public building constructed as modernized Hanok. And the New Hanok style public building will maximize the social ripple effect by satisfying the ease of user and various functions . Before, Hanok building and that sort of thing was established through the development of elements technologies of Hanok and test construction in the residential efficiency upgrading of Hanok. From now on, the existing constructed elements technologies of Hanok and test construction will be monitored for administering and improving and will make the related guidelines, effective maintenance and management system. Thus, this research expects the spread of Hanok and industrialization of Hanok through the application expansion of Hanok. Keywords : Large Space, Multi Layered,
        4,800원
        1123.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Landscapes are dynamic and therefore they experience frequent changes over time. This research analyzed the landscape changes and spatial characteristics of woodlands in an urban fringe landscape to provide information for the sustainable landscape ecological planning. The results showed that the studied landscape changed between 2002 and 2014 mainly due to new road construction and residential development. Several landscape ecological indicators were used to assess the woodland changes and the overall effect of woodland changes on the landscape structure. The results of the landscape ecological analysis revealed a decrease in patch size of less 5ha (n=13) and between 5ha and 9.9ha (n=2). AWSI decreased from 4.03 in 2002 to 3.89 in 2014, and MND increased from 38.41m in 2002 to 49.12m in 2014, and SDI of land cover type decreased from 1.16 in 2002 to 0.18 in 2014. The results suggest that woodlands have become smaller and more isolated. The shape of the woodlands has also become simpler and more regular. These spatial woodland changes adversely impact the biodiversity. For further information on landscape ecological conditions, a more comprehensive analysis based on more landscape ecological metrics and ecological information such as habitats and species surveys is needed in future studies.
        4,000원
        1124.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        해양구조물에 전기 안전사고가 급증하면서 전력시스템 고조파 분야가 최근 많은 관심 받고 있다. 이것은 주로 비선형 (또는 고조파 생성) 부하가 일반적인 산업플랜트 전력시스템에서 계속 증가되고 있기 때문이다. 해양플랜트에서는 전력시스템의 안전설계로 인하여 고조파 문제의 발생률은 낮지만, 고조파 문제에 대한 인식은 전력시스템 설계의 신뢰성을 향상시키는데 여전히 도움이 될 수 있다. 전력시스템에 고조파 문제가 드물게 발생되는 경우, 이는 생성된 고조파의 크기 혹은 전력시스템의 공진 때문이다. 이 고조파 비교분석에 관한 연구는 전력부하를 고려한 부유식 액화천연가스 생산·저장·하역 (FLNG) 설비의 하역 운전 시나리오에 대한 전기적인 구성으로 비교분석하였다. 전기적인 네트워크 구성은 전기적인 네트워크 부하 흐름에서 볼 수 있다. 본 연구는 해양플랜트 전력시스템의 안전을 보장하기 위해 전기 모터 시스템의 고조파 효율에 초점을 맞추어 전력시스템 성능을 시뮬레이션을 통해 검증하였다. 또한, 본 연구의 설계분야에서도 운전 및 유지·보수의 향상시키기 위해 FLNG 설비의 전력시스템을 분석하였다.
        4,000원
        1125.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구의 목적은 새로운 사고의 위기가 국내 해양안전에 미치는 영향을 분석하기 위함이다. 새로운 사고 위기는 세계 해상운송에서 새롭거나 드물게 또는 예측하지 못한 사건들로부터 유추한 것으로 사전 연구에서 46명의 전문가를 통해서 식별한 것이다. 새로운 해양사고의 위기를 식별하기 위하여 해양안전심판원(KMST)의 통계 데이터를 계산에 사용하였고, IMO의 공식안정성평가기법인 위기지수(RI) = 빈도지수(FI) + 심각성지수(SI)의 개념을 계산에 적용하였다. 통계적인 사고 데이터로부터 FI와 SI의 가중치를 계산한 후 가장 순위가 높은 시나리오를 식별하고 새로운 사고 위기와 시나리오 사이의 관계를 분석하였다. 분석 결과, 가장 순위가 높은 시나리오의 근본적인 원인은 “첨단기술 개발”이었고, 그 결과 “화물 작업 시간 단축”이 발생하는 것으로 나타났다. 이러한 결과는 사전 연구에서 46명의 전문가에 의해 식별한 “영업 경쟁” 및 “선원 문제” 등과 차이가 있음을 보였다.
        4,000원
        1126.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aims to survey current chicken industry and the status of technology based on the KAFACI project on the promotion of good management for increased productivity of market oriented small scale chicken producers in Nigeria. The agricultural sector has been identified as a virile sector with varieties of opportunities for the much sought diversification of revenue base and employment generation in Nigeria despite the dominance of smallholder farmers. The chicken enterprise has being a component of the livestock industry showing increasing importance. Growing entrepreneurships for sustainable growth of the industry requires investigating the prevailing environment in market-oriented chicken production in Southwest Nigeria. This study investigated the production practices, constraints of market oriented smallholder chicken farmers. Data were generated through farm survey of 240 farmers selected by multi-stage sampling techniques from 5 out of 6 states in the Southwest. Data were analyzed using descriptive statistics. The study shows a population of famers dominated by male 76.7% and average year of education of 13.88years. Foundation stock of birds are prominently sourced from commercial hatcheries (75.8%) and reared under intensive management system (87.8%). Majority of the farmers (46.7%) are into rearing of layers, broilers and cockerels with an average stock size of 449, 157 and 158 birds respectively. Birds are fed twice daily (74.8%) on compounded ration by 95.4% of the farmers. Major production constraints are high feed cost (32.1%), shortage of capital (30.0%) and poor access to market (25.4%). However, 96.7% of the farmers considered the enterprise profitable.
        4,000원
        1127.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        목 적: KR-8100P, Nvision K-5001, KR-1W로 측정한 굴절이상도를 자각식 굴절검사와 비교하여 정확 도를 평가하였다. 방 법: 근시성 난시안인 20 ~ 29세 성인 42명(84안, 23.90±2.39세)을 대상으로 내부형 자동굴절계 (KR-8100P), 개방형 자동굴절계(Nvision K-5001), 파면수차계(KR-1W)를 이용하여 굴절이상을 각각 측정 하였고, Power vector를 이용하여 등가구면굴절력을 나타내는 M 성분과 원주굴절력 J0 와 J45 성분으로 변 환하여 분석하였다. 검사기기 측정값의 정확도는 자각식 굴절검사를 기준으로 각각의 기기에서 측정한 값을 비교 분석하였다. 결 과: KR-8100P와 자각식굴절검사의 M, J0, J45 각각의 차이값의 평균은 -0.34±0.42 D, 0.06±0.22 D, -0.08±0.15 D로 모든 성분에서 유의한 차이가 있었고(p<0.05), Nvision K-5001과 자각식굴절검사의 M, J0, J45 차이값은 0.20±0.47 D, -0.03±0.22 D, -0.01±0.16 D로 M 성분에서 차이가 있었고(p<0.05), J0, J45 에서는 차이가 없었다(p=0.17, p=0.68). KR-1W와 자각식굴절검사의 M, J0, J45 차이값은 -0.14±0.39 D, -0.02±0.18 D, -0.02±0.14 D로 M 성분은 차이가 있었고(p<0.05) J0 와 J45 에서는 차 이가 없었다(p=0.43, p=0.05). 각각의 기기로 측정한 M, J0, J45 성분들의 정확성계수는 KR-8100P에서는 0.823, 0.431, 0.294, Nvision K-5001에서는 0.921, 0.431, 0.313, KR-1W에서는 0.764, 0.352, 0.274로 나타났다. 결 론: 자각식 굴절검사를 기준으로 비교한 자동굴절계의 정확도는 KR-1W가 KR-8100P와 Nvision K-5001보다 더 높았고, 검사값의 차이가 통계적으로 유의한 것으로 나타났지만 임상적으로 판단할 때 차이 가 있다고 할 수 없는 정도이기 때문에 자동굴절계는 모두 자각식 굴절검사를 위한 예비검사에 적합하다고 생각된다.
        4,200원
        1128.
        2016.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Hepatocellular carcinoma (HCC) is a representative inflammation-associated cancer and known to be the most frequent tumor. However, the preventive agents for hepatocarcinogenesis are unsatisfactorily identified. We investigated the protective effect of steamed and freeze-dried mature silkworm larval powder (SMSP) on diethylnitrosamine (DEN)-induced hepatotoxicity in mice and compared the effect of three silkworm varieties: white-jade, golden-silk, and light-green strains. The mice were fed with diet containing 0.1, 1, and 10 g/kg of three types of SMSP for two weeks while DEN (100 mg/kg, i.p.) was injected 18 h before the end of this experiment. Liver toxicity was determined as serum indicator, histopathological examination, and expression of inflammatory enzyme. Pretreatment with SMSP reduced necrotic and histopathological changes induced by DEN in the liver. The measurement of serum biochemical indicators showed that pretreatment with SMSP also decreased DEN-induced hepatotoxicity, the levels of alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST). In addition, SMSP inhibited the expressions of inflammatory enzymes, cyclooxygenase-2 and inducible nitric oxide synthase. White-jade SMSP showed the most effective hepatoprotective results against hepatotoxicity among the three silkworm strains used in this study. SMSP may have a protective effect against acute liver injury by inhibiting necrosis and inflammatory response in DEN-treated mice.
        4,000원
        1129.
        2016.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        해적은 오래된 개념이며 그 역사는 인간이 바다를 운송수단으로 사용하기 시작한 시점까지 거슬러 올라간다. 특히 범죄행위는 1958년 제네바협약 이전에 국제 관습법에 의해서 처음으로 다뤄지기도 하였다. 소말리아 연안의 해적에 대한 대응조치는 국제적 및 국내적 조치로 구성이 된다. 해군, 제150/제151 합 동임무부대, 국내조치, 선제조치 및 새로운 해운기지 건설 등의 노력으로 소말 리아 연안 해적활동 대응에 큰 기여를 해 왔다. 이 논문은 이러한 대응조치가 효과적인지에 대해 초점을 맞추며 기소에 직면한 상황들에 대해 좀 더 고찰해 보고자 한다. 그리고 해적의 개념, 소말리안 연안 해적의 근본적인 원인, 소말 리아 해적이 가져온 영향, 해적문제의 법적 고찰, 국제사회에 의한 대응 및 기 타 권고사항 등에 대해서 살펴보고자 한다.
        9,300원
        1130.
        2016.10 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        We present an optical imaging survey of AKARI Deep Field South (ADF-S) using the Korea Microlensing Telescope Network (KMTNet), to find optical counterparts of dusty star-forming galaxies. The ADF-S is a deep far-infrared imaging survey region with AKARI covering around 12 deg2, where the deep optical imaging data are not yet available. By utilizing the wide-field capability of the KMTNet telescopes (∼4 deg2), we obtain optical images in B, R and I bands for three regions. The target depth of images in B, R and I bands is 24 mag (AB) at 5, which enables us to detect most dusty star-forming galaxies discovered by AKARI in the ADF-S. Those optical datasets will be helpful to constrain optical spectral energy distributions as well as to identify rare types of dusty star-forming galaxies such as dustobscured galaxy, sub-millimeter galaxy at high redshift.
        4,000원