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        검색결과 75

        3.
        2023.01 KCI 등재 구독 인증기관·개인회원 무료
        생물환경조절학회지 31권 4호에 게재된 논문의 사사가 잘못 기재되어 있어 바로 잡습니다.
        4.
        2022.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        국내외로 첨단 ICT 융합기술이 농업 분야에 적용되기 시작 하면서, 시설원예 설비들이 고도화되고, 스마트팜 구축 기술 및 인력이 축적되기 시작하였다. 그러나 우리나라 농촌의 경 우, 농업생산 연령의 고령화, 국내 농촌 인구의 지속적인 유출, 저출산 등으로 인하여 스마트팜 확대 및 적용에 어려움이 많 은 실정이다. 따라서 공간 및 시간에 구속을 받지 않는 간편한 농업인 교육 프로그램이 필요하며, 최근 부상하고 있는 시뮬 레이션 기술을 활용한다면 농업 교육용 시뮬레이션 툴 개발도 가능할 것으로 판단된다. 온실 환경 제어 모델을 이용한 시뮬 레이션은 다양한 지역과 기상 조건 하에서 대상 온실의 열과 물질에너지의 상호작용을 합리적으로 예측할 수 있게 해준다. 본 연구에서는 온실 환경 제어 모델을 활용하여 외부 기상 데 이터를 통해 온실의 환경 변화를 예측하고 가상의 환경 제어시스템을 통해 환경 제어 시 필요한 에너지값들을 시뮬레이션 할 수 있었다. 이러한 결과를 통해 이용자가 직접 맞춤형 환경 제어를 할 수 있도록 편의성을 고려한 사용자 인터페이스를 구축할 것이며, 실제 파프리카 재배 온실의 제어 요소들을 반 영할 수 있도록 설계될 것이다. 농업용 교육 시뮬레이션 툴을 최근 활발하게 연구가 이루어지고 있는 작물 생육 모델링 기 술 및 전산유체역학 기술과 융합하면 더욱 타당한 결과를 보 일 것이다.
        4,300원
        5.
        2022.10 구독 인증기관·개인회원 무료
        Identifying plausible scenarios is necessary to evaluate the performance of the repository reliably over a very long period. All features, events, and processes (FEPs) expected in the repository should be comprehensively well-defined and structured into scenarios based on the relation analysis. A platform for the FEP DB management and relation analysis is needed to facilitate the efficient composition of the scenarios. For this purpose, the CYPRUS program was developed, but abandoned due to suspended FEPs and scenario research. Thus, it became necessary to build a new easy-tomaintain platform that inherits the legacy of CYPRUS and reflects the latest research. The data structure and user interface configuration were derived to develop a new platform. The new platform provides extensive data such as the assessment context, the FEP DB, the interaction between FEP contents, the relevance to other project FEPs, the influence on performance, the scenarios for the TSPA, the AMF, and the PA Data. The platform displays the long-term evolution FEPs developed by KAERI, the international and major project FEPs in table format. The correlation between FEP items is composed of a detailed interaction matrix and visualized as the chord diagram or arc diagram. The relevance and linkages between the project FEP items are mapped and presented in the form of network diagrams and network tables. The platform designed in this study will be used to manage the FEP DB, analyze and visualize the relationship between the FEP and scenarios, and finally construct the performance assessment scenarios. It is expected that the platform itself will be used as a part of the knowledge management system and facilitate efficient collaboration and knowledge exchange among experts.
        6.
        2022.10 구독 인증기관·개인회원 무료
        The bilateral nuclear cooperation agreement provides the basis for technical and economic exchanges and research and development cooperation in the nuclear industry, while also having an important role in the peaceful use of nuclear power. The government of Republic of Korea has signed the supplementary and additional arrangements with the United States, Canada, and Australia to specify detailed procedures necessary for the implementation of the agreement. Currently, items under the bilateral nuclear cooperation agreement (i.e., obligated items) are managed through official documents and e-mails, and it is difficult for the government to systemically track item inventory and identify the person in charge. Another issue is the discrepancy of information between the annual report on obligated items and the report under the import and export procedure. In order to solve these problems, the government is establishing an import and export management system for obligated items to enhance transparency and national reliability in Korea. The ultimate purpose of this project is to not only faithfully fulfill the obligations under the bilateral nuclear cooperation agreement, but also to increase the efficiency of implementation work through systematization of databases and management of obligated items. In this paper, an improved management procedures are suggested by analyzing the required functions and problems. Also, this paper provides a conceptual design that can be applied to the management system for it obligated items by identifying and analyzing practical problems in the import and export management of mandatory items. As a result, key considerations and the conceptual design proposal for the ‘export and import management system for items subject to the nuclear bilateral cooperation agreement’ are derived. The result will be supplemented through continuous discussions with facility operators and the government to be utilized for detailed system design.
        8.
        2022.05 구독 인증기관·개인회원 무료
        Since July 2021, the Korea Radioactive Waste Agency has been conducting a safety case development study for the Korean deep geological repository program. The safety case includes generating scenarios in which radioactive materials from spent nuclear fuel repository reach the human biosphere by combining selective FEPs (Features, Events, and Processes). This safety case should be able to transparently explain the process in which conclusions have been drawn not only to stakeholders but also to the public by presenting safety arguments. The scenario development stage consisting of FEP screening, scenario generation, and uncertainty analysis procedures should have a database management system. Database management system was performed in countries such as Sweden, which obtained approval for the construction of spent nuclear fuel repositories, and the United States, where various preliminary research was carried out. Korea Atomic Energy Research Institute also has experience in designing and operating its own database, which has conducted preliminary research on disposal of the spent nuclear fuel. Currently, the safety assessment of the Korean spent nuclear fuel repository is in the early stages of research, but it is necessary to set up a basic framework for database design while the collection of FEP data from domestic and international preliminary studies is under development, and it is advantageous for efficient database construction and operation. Therefore, this paper presents the current status of database design considering completeness and transparency from the FEP screening stage to the scenario development stage in the safety assessment process of the Korean spent nuclear fuel repository. In this process, the functional requirements that the database should provide, the database schema capable of implementing them, and simple examples are presented together. The objectives of this database design are flexible FEPs management, high integrity and consistency, and expandability for linking with the safety case database. The FEP data to be inputted into the database includes a list of major opened FEPs, including International FEPs from Nuclear Energy Agency, which were referred for PFEPs (Project-specific FEPs), and PFEPs applied to POSIVA's Olkiluoto repository. As an additional function, queries from the database are used to visually express the process of deriving scenarios through Rock Engineering System, a widely known scenario generation methodology.
        9.
        2022.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aims to propose a conceptual design of information displays for supporting responsive actions under severe accidents in Nuclear Power Plants (NPPs). Severe accidents in NPPs can be defined as accident conditions that are more severe than a design basis accident and involving significant core degradation. Since the Fukushima accident in 2011, the management of severe accidents is increasing important in nuclear industry. Dealing with severe accidents involves several cognitively complex activities, such as situation assessment; accordingly, it is significant to provide human operators with appropriate knowledge support in their cognitive activities. Currently, severe accident management guidelines (SAMG) have been developed for this purpose. However, it is also inevitable to develop information displays for supporting the management of severe accidents, with which human operators can monitor, control, and diagnose the states of NPPs under severe accident situations. It has been reported that Ecological Interface Design (EID) framework can be a viable approach for developing information displays used in complex socio-technical systems such as NPPs. Considering the design principles underlying the EID, we can say that EID-based information displays can be useful for dealing with severe accidents effectively. This study developed a conceptual design of information displays to be used in severe accidents, following the stipulated design process and principles of the EID framework. We particularly attempted to develop a conceptual design to make visible the principle knowledge to be used for coping with dynamically changing situations of NPPs under severe accidents.
        4,300원
        10.
        2021.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In system design, it is not always possible that all decision makers can cooperate fully and thus avoid conflict. They each control a specified subset of design variables and seek to minimize their own cost functions subject to their individual constraints. However, a system management team makes every effort to coordinate multiple disciplines and overcome such noncooperative environment. Although full cooperation is difficult to achieve, noncooperation also should be avoided as possible. Our approach is to predict the results of their cooperation and generate approximate Pareto set for their multiple objectives. The Pareto set can be obtained according to the degree of one's conceding coupling variables in the other's favor. We employ approximation concept for modelling this coordination and the mutiobjective genetic algorithm for exploring the coupling variable space for obtaining an approximate Pareto set. The approximation management concept is also used for improving the accuracy of the Pareto set. The exploration for the coupling variable space is more efficient because of its smaller dimension than the design variable space. Also, our approach doesn't force the disciplines to change their own way of running analysis and synthesis tools. Since the decision making process is not sequential, the required time can be reduced comparing to the existing multidisciplinary design optimization. This approach is applied to some mathematical examples and structural optimization problems.
        4,000원
        12.
        2021.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        PURPOSES : The purpose of this study is to contribute to the utilization of standards while considering the possible upgrade of a local system as a subject of the application. Therefore, this study aims to explore the possible application of LandInfra for a local road management (maintenance) system in the context of enabling the basis of 3D geospatial road information management in Korea. METHODS : Based on a review of related literature and international standards, an analysis of the current system is performed. After reviewing the LandInfra standard, an examination of corresponding classes between each data model (HMS and LandInfra) is performed for the mapping process. After the mapping process, a data model of the LandInfra-based HMS pavement data model is proposed. RESULTS : To apply the LandInfa to the HMS pavement part, an examination of each data model is performed. After this procedure, a LandInfra-based HMS pavement database schema is proposed in the context of enabling 3D geospatial road information management and maintenance, particularly for pavement management information. CONCLUSIONS : This paper presents how the LandInfra international open geospatial standard can be applied to the local road management system (HMS pavement part). As a result of this study, the LandInfra standard could be applied to the HMS; however, an encoding of the standard is required for conformance. Thus, further studies would be the encoding of the proposed data model for conformance with InfaGML encoding standards. In addition, a system prototype may be needed for complete application.
        4,000원
        13.
        2019.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 보는 대상이 아닌 시점으로서의 역할이 중시되고 있는 누정의 경관적 역할 및 관리 등에 살펴볼 목적으로 진행된 것이다. 전라남도 무안군 식영정을 대상으로 연구를 진행했으며, 그 결과는 다음과 같다. 1. 식영정 주변의 공간구성 및 수목배치 등에 따른 경관변화를 검토한 결과, 부지경계부에 식재되어 있는 작은 수목과 펜스 설치 그리고 주변부 외래수종으로 인한 이미지 변화 및 시야차단에 의한 경관훼손이 일어나고 있는 것으로 나타났다. 2. 새로 조성된 초가 쉼터의 부적절한 위치로 인해 시야가 차단되는 것으로 나타나 누정주변의 공간구성요소 배치 등에 개선이 필요한 것으로 분석되었다. 3. 식영정과 이산마을 그리고 영산강과 주변 산들의 상호 연계성 및 구성요소 변화 등에 대한 조사분석 결과, 식영정으로 접근하는 방식 및 연결동선에 변화가 생겼다는 사실이 확인되었다. 4. 무안 식영정의 경우, 주변구성요소의 배치 및 접근동선의 변화에 따라 누정 및 조망되는 경관이 크게 달라진다는 사실을 확인할 수 있었다.
        4,000원
        17.
        2018.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 논문에서는 마리나 항의 상하가 시설 및 장비의 형태를 분석하고 마리나 이용 대상 선박을 기준으로 기 설치된 마리나의 상하가 시설(리프트 피어)과 장비(마린 모바일 리프트)에 대한 분석을 통해 상하가 시설 및 장비의 설치기준을 마련했다. 국내에서 운항중인 선박 총톤수에 따라 요구되는 리프트 피어의 내부 간격은 35톤 선박은 5.50 m, 50톤 선박은 6.20 m이며, 이를 상하가하기 위한 마린 모바일 리프트의 내측 폭은 35톤 선박은 6.10 m, 50톤 선박은 6.80 m가 필요하다. 국내 마리나에 설치된 리프트 피어는 목표한 선박을 인양할 수 있는 곳은 2곳으로 나타났으며, 그 외 다른 마리나의 리프트 피어 내부 간격은 0.35 ~ 0.50 m가량 좁았다. 또한 운용 중인 마린 모바일 리프트 중 목표한 선박을 상하가하기 위해 필요한 내측 폭을 확보한 장비는 2개로 나타났으며, 그 외 마린 모바일 리프트 내측 폭이 0.3 ~ 0.6 m가량 부족했다.
        4,000원
        18.
        2018.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Currently, the commercialization of the 5th Generation (5G) service is becoming more prevalent in domestic communication network technology. This has reduced communication delay time and enabled large-capacity data transmission and video streaming services in real-time. In order to keep pace with these developments, K-water has introduced a smart process control system in water purification plants to monitor the status of the water purification process. However, since wireless networks are based on the public Long Term Evolution (LTE) network, communication delay time remains high, and high-resolution video services are limited. This is because communication networks still have a closed structure due to expense and security issues. Therefore, with 5G in its current form, it is very difficult to accommodate future services without improving the infrastructure of its communication networks. In recognition of these problems, this study implemented the authentication and management function of wireless networks on a wired network management system in the K-water Bansong water purification plant. The results confirmed that wired Local Area Network (LAN) services give a higher security performance than an expensive commercial wireless LAN system. This was achieved by using an Internet Protocol (IP) address management system of wired networks and the packet filtering function of the Layer2 (L2) switch. This study also confirmed that it is possible to create a wireless LAN service that is 3.7 times faster than the existing LTE communication network.
        4,000원
        19.
        2017.07 구독 인증기관·개인회원 무료
        The “Signature” project is the result of several years of study and research in the field of interdisciplinary artistic fields and phenomenology of contemporary fashion, identity, body as a means in fashion and performative arts, and the post-human condition of the body in performance. In contemporary fashion, the clothing item is morphed into a completely new identity. The real body is transformed by clothes, as well as by other forms (prosthetics, plastic surgery), called human extensions. The evolution of the body and clothes enshrining it represents a spectre of methods, theories and styles in line with every author presented in the “Signature” project. For them, the body should be in harmony with its inner and outer surrounding, since it has a need to intervene and change its nature. We live in a hyper-consumerist society in which everything is reduced to recycled, revitalised images of past historical styles. It all becomes personal styles and yet it still represents in our “spectacle” society. At the Signature exhibition of the Arts Association and Lidija Fistrek as a author, held at the Technical Museum in Zagreb in 2013 and 2016 at the Design Week in Zagreb, four Croatian fashion designers’, performance artist’s, sculptures, music producers works were presented. To these designers, clothing represents a medium, which enters visually into our consciousness and becomes significant as we communicate in nonverbal manners. The approach to clothing and bodies as mediums vividly shows how each author leaves his/her recognisable signature. The body itself, and its personal lifestyle-reflecting appearance, is already visually pre-construed. It needs to dress, to change styles, to intervene and redesign its own „nature” according to changes in the inner and outer environment. Fashion designers use the body surface in various ways as a territory for inscription, which erases in a rather appealing way the boundaries of belonging and offers an opportunity to leave a personal signature mark on their original work.
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