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        검색결과 530

        421.
        2019.10 서비스 종료(열람 제한)
        이 연구에서는 강교량 노후화의 주요 원인인 부식손상에 대하여 현재 작성 중인 강교량 방식 가이드라인을 소개하고자 한다. 강교량 방식 가이드라인은 최근 연구 성과 및 최신 기술 등을 바탕으로 강재의 부식과 방식, 강교량의 부식 상태 조사 및 평가, 강교량의 보수 도장 및 방식대책, 강교량의 폐합 단면 및 폐합 부재의 부식상태 조사 및 평가, 방식대책으로 구성 되어 있다. 이처럼 가이드라인은 강교량의 일반적인 부식, 방식을 포함하여 인력점검이 어려운 부재, 폐합 부재의 부식조사, 평가법 등까지 실무에서 활용할 수 있도록 개발 중이다.
        422.
        2019.04 서비스 종료(열람 제한)
        A damage case of parallel strand cable anchorage was introduced, in which 7 strands were slipped from each wedge at the anchorage of the cable stayed bridge in service. Also, a cable damage detection scheme was proposed on the basis of tension force measurement and model updating method by least square estimation to minimize tension variation. The proposed scheme has been verified from analytical simulations and the actual damage case. The damaged cable leading to tension variation more than noise level of cable force measurement was successfully detected with 7~8 strands damage indication of 2% error in the actual strand slippage case.
        423.
        2018.11 KCI 등재 서비스 종료(열람 제한)
        기후변화는 홍수의 가장 큰 원인이 되는 극치강우의 빈도와 크기에 매우 큰 영향을 미치고 있다. 특히, 우리나라에서 발생하는 대규모 재해는 강우에 의한 홍수피해가 대부분을 차지하고 있다. 이러한 홍수피해는 기후변화에 의한 극한강우의 발생 빈도가 높아짐에 따라 새로운 재해양상으로 전개되고 있다. 하지만, 미래 기후변화 시나리오 자료는 해상도의 한계로 인하여 중소규모 하천 및 도시유역에 요구되는 수준의 자료 수집이 불가능한 상태이다. 이러한 문제점을 개선하기 위하여 본 연구에서는 전지구모형에서 생산된 기후변화 시나리오에 대해서 여러 단계의 통계적 상세화 기법을 통하여 우리나라 전역에 대하여 미래 시나리오에 대한 빈도해석이 가능하도록 각 지점의 특성에 따라 시간적으로 상세화하기 위해 개발된 방 법 및 과정을 소개하였다. 이를 통해, 시간상세화 자료를 토대로 미래 강우에 대한 빈도해석과 기후변화에 따른 방재성능 목표강우량을 산정하는데 활용할 수 있도록 하였다.
        424.
        2018.08 서비스 종료(열람 제한)
        인재는 고등학교 인재 대열의 건설과 발전에서 있어서 핵심 요소이며 일류 대학과 일류 학과를 설립하는 데 있어서 새로운 시대적 요구인 동시에 인재의 질은 고등 학교 학과의 발전 수준을 결정한다. 과학 기술 연구의 심화에 따라, 학제적 연구는 과학의 빠른 발전을 추진한다. 본 문은 디지털 미디어 학원에서 구축한 디지털 미디어 기술과 디지털 미디어 아트라는 두가지 신흥 학제적 분야적 분야를 예로 신흥 학제적 분야적 분야에 창의인재 유치와 양성 방면에서 존재하는 문제점을 분석하고 인재 유치 및 양성 대책을 적극 모색하며 나라의 인재 양성 특히는 문화 창의성 산업의 인재 양성 프로젝트를 위해 유익한 계시와 도움을 제공한다.
        425.
        2018.05 KCI 등재 서비스 종료(열람 제한)
        Purpose – The purpose of this study is to explore the introduction and activation of smart training for the effective training of vocational ability development of companies in the 4th industrial revolution era, we analyze the present status of smart training introduction and related difficulties and propose concrete activation plan. Research design, data, and methodology – Through the online survey, we tried to confirm the recognition of corporate about smart training. Questionnaires include what are the benefits, expectations, and difficulties of smart training, etc. The survey was conducted from August 21, 2017 to September 4, 2017. A total of 69 companies participated in the questionnaire. The questionnaire results were analyzed through frequency analysis and contents analysis. Based on the results of the questionnaire, we found out the cause of inhibition of smart training activation and suggested activation strategies. Results – The main reason for the provision of smart training is the expectation of the training performance and the recognition that it is possible to provide training in a flexible manner. The effectiveness of smart training operation was evaluated as a high level of contribution to the development of creative training course and the capacity of training institute. As a result of checking factors that hinders the activation of smart training, the most important reason is that the time and cost burden of the training institutes is excessive. The lack of expertise in the design of smart training courses and the burden of employers and trainees. Conclusions – In order to activate smart training, it is necessary to find solutions to the obstacles at the internal or external level of training institutions. The internal barriers to the training organization are lack of internal competence for preparation and course management. In this regard, we need to consider providing consulting, best practices or guidance in the process of designing and operating smart training. On the other hand, as an external obstacle factor, it is necessary to provide incentives to participate in smart training. In addition, further research is needed on strategies that can lead to participation in smart training from the viewpoint of employers and learners.
        427.
        2017.05 서비스 종료(열람 제한)
        When adopting drain close system, the temperature of emission gas at the boiler exit is set high by spraying and evaporating drained water on quencher tower. According to applying drain close system boiler and power generation efficiency were decreased. In case of the water close system is not applied to treat the wastewater from incineration facility, the economizer outlet temperature can be reduced to 190∼220℃. And this leads to the increased ability of boiler's heat recovery. However, the temperature of emission gas at economizer exit should be set at 250℃ or higher if applying drain close system (minor conditions can affect as well). Boiler efficiency and generation efficiency can be improved by comparing the temperature of emission gas at economizer exit at 190℃ without the introduction of drain close system and 250℃ with drain close system. There are three types of white plume reduction equipment: one is offline type to blow air into chimney through heat source and exchange points after heating the air by using steam from equipment like boiler; another is in-line type to blow air into chimney through heat exchanger of combustion emission gas (mainly boiler exit); and the other is to blow air into chimney through hot wind burner by using fuels including kerosene. At a facility with white plume reduction equipment equipped with 5℃ of outdoor temperature and 60% of humidity, power generation volume and generation efficiency can be improved by using leftover steam for steam turbine from suspension of using white plume reduction equipment.
        428.
        2017.02 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study is to evaluate the effect of horticultural therapy program introducing logotherapy to relieve senior citizens from loneliness and helplessness. 24 senior citizens registered in C Senior Welfare Center located in Chung-cheongbuk-do were selected to be subject of this study. 12 senior citizens were assigned to the experimental group and went through a horticultural therapy program, the other 12 senior citizens were assigned to the control group, and no specific program was applied. As a result, the experimental group which went through a horticultural therapy program shown a statistical significance in relieving their loneliness and helplessness, while the control group did not show any statistical significance. In this respect, this study concludes that horticultural therapy introducing logotherapy, can be useful for senior citizens to relieve their loneliness and helplessness.
        429.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        최근 새만금 농업용지에 아그로파크 개념을 적용하기 위한 시도가 이루어지고 있어 새만금 간척지에 현실적 이고 적합한 아그로파크 개념을 반영한 농업용지를 개발할 필요가 있다. 그러나, 현재의 새만금 토지이용계획 상 주요 11개 단지들은 네덜란드의 아그로파크처럼 같은 장소에서 서로 다른 기능들이 공간적으로 네트워크로 연결된 개념보다는 각각의 기능을 가진 독립된 공간처럼 단지별로 나누어져 있어 단지들 간 종합적으로 연결된 개념으로 보기 힘들다. 따라서, 본 연 구에서는 새만금 농업용지에 아그로파크를 도입할 수 있는 두가지 방안을 제시하였다. 첫째, 현재의 토지이용계획을 고려하 지 않았을 때, 어느 특정 구역에 자원 순환 등의 연결고리를 갖고 생산, 가공, 유통이 한 곳에서 이루어질 수 있는 아그로파 크를 조성하여 확대할 수 있도록 토지이용계획이 수정될 수 있는 방안이다. 이 경우 농업용지는 지속적으로 아그로파크들의 확장에 따라 단계적으로 확대 개발될 수 있고, 장기적인 관점이 필요한 방안이다. 둘째, 현재의 토지이용계획을 고려할 때, 아그로파크 기능 발휘를 위해 농업용지 각 단지별로 연계 가능 기능들을 연결하는 방안으로, 아그로파크 시범단지를 조성하 는 것을 제시하였다. 두 경우 모두 아그로파크 기능 발휘를 위해 새만금 농업용지 종합관리센터가 구축되어야 한다. 향후 성공적인 아그로파크 조성을 위해 이 두가지 방안에 대한 세부 계획과 설계 기술 개발을 위해 지속적인 연구가 필요하다.
        430.
        2016.11 서비스 종료(열람 제한)
        온실가스인 이산화탄소는 다른 온실가스에 비해 Global Warming Potential(GWP)가 가장 낮지만 배출량이 전체 온실가스 중 88 %의 비중을 차지하고 있다. 많은 국가에서 기후변화에 관심을 가지고 이산화탄소 저감에 대한 연구개발이 활발히 일어나고 있다. 본 연구에서는 암모늄 화합물을 이용하여 이산화탄소를 포집하고 산업폐기물의 금속이온을 이용하여 무기재료인 탄산칼슘을 생성하는 다양한 방법을 소개한다. 탄산칼슘 생성을 위해 칼슘이온이 포함된 탈황석고, 폐시멘트를 이용하였다. 결과에서 이산화탄소 포집 성능 및 최종생성물의 결정구조를 확인하였으며, 이산화탄소 loading 값  는 약 2.0의 값을 가진다. X-Ray Diffraction, Scanning Electron Microscope의 분석을 통하여 탄산칼슘이 생성되었음을 확인하였으며, 결정구조는 Vaterite가 생성됨을 확인할 수 있다. 효과적인 공정을 위하여, 생성물을 생성한 후 용액을 회수하여 재이용할 수 있어 연속적인 공정이 가능하다. 회수된 용액의 재이용의 가능성을 보기위하여 이산화탄소를 재흡수 시키면서 같은 공정을 2cycle씩 진행하여, 연속적인 공정의 잠재성을 확인하였다.
        431.
        2016.10 서비스 종료(열람 제한)
        By amending of the special law on the safety management of the facility, coastal structures(breakwaters) have been incorporated into kinds of facilities. In this paper, an inspection manual for the coastal structures(breakwaters) will be introduced.
        432.
        2016.10 서비스 종료(열람 제한)
        By amending of the special law on the safety management of the facility, underground structure have been incorporated into kinds of facilities. In this paper, an inspection manual for the underground structure will be introduced.
        436.
        2016.08 KCI 등재 서비스 종료(열람 제한)
        In this study, green design introducing nature into the commercial place is viewed how it gives not only psychological and emotional values to the customers but also economic value to commercial business self. Because economic value is to be difficult, complex and inaccurate in figure, this study was investigated for economic values of introduction of naturality by conversions of brand values. Also this study investigated how customers give economic benefits to the brand attitude and brand royalty when they were conscious of the introduction of the naturality in family restaurant and how customers expressed brand loyalty by revisits and recommended to others. For the analogical interpretation, it were clarified with three hypotheses. The first hypothesis was visual factors will have positive effects to brand attitude and brand loyalty and the second hypothesis was that, among customer evaluation factors, introductions of naturality will affect more to the brand attitude and brand loyalty than visual factors. The third hypothesis was family restaurants of natural stlye would have introduced green design factors which were represented by plants and naturality. The results of this study were as follows: The first hypothesis was verified that visual factor was influenced for positive effect on higher brand attitude and brand loyalty of customers. The second hypothesis was investigated that recognition of natural elements were influenced for positive effect on higher brand attitude and brand loyalty of customers. Thirdly, the restaurants of natural stlye were explained by natural elements factors and has more positive relations to the brand attitude and brand loyalty than other type for introducing plants. Finally, this study was propsed that introducing natural plants in commercial family restaurant was to estimate brand asset values and to have motive to practice green design with natural elements, speciality natural plants.
        437.
        2016.06 KCI 등재 서비스 종료(열람 제한)
        Forest service government has been prepared a Forest welfare voucher service system base on published law on th Promotion Welfare Forest. The purpose of this research is study on domestic situation and set on direction of voucher service before started it. In particular, voucher service will be implemented to Forest service government’s recreation facilities area, awareness of voucher service system of its users and operators need to be reveal, and also other government’s similar voucher operator’s opinions also investigate. From those results, it find out introduction factors of forest welfare services voucher system. Recognition investigating survey result shows that the ordinary people are interested in programs, the forest recreation experts are interested in 'Construction and utilization of forest infrastructure', other voucher's experts are interested in 'Training', and ordinary people are interested in 'voucher programs'. So each respondents’ results are different in important factors of introducing welfare service voucher system.
        438.
        2016.05 KCI 등재 서비스 종료(열람 제한)
        The objective of this study is to introduce a program for environmental conservation in environment-friendly agriculture. For this, we first analyze a performance condition of environment-friendly agricultural districts and zones. And then we survey difficulties on implementation and main points for spread of environmentfriendly agriculture. Finally we forecast an effectiveness and realizability on program for environmental conservation in environment-friendly agriculture. As a result, it is necessary to plan policies on qualitative as well as quantitative growth in environment-friendly agriculture. The results of this study will be meaningful to make policies on spread of environment-friendly agriculture.
        440.
        2015.10 서비스 종료(열람 제한)
        Ministry of Land, Infrastructure and Transport(MOLIT) publishes Yearbook of Road Bridge and Tunnel Statistics once every year. Also, Korea Institute of Civil Engineering and Building Technology(KICT) is operating the website based on GIS to provide the status information of bridges and tunnels on the road. In this paper introduces road Bridge and Tunnel Information(BTI) system that offers the base data for the effective maintenance of bridges and tunnels on the road.