• Nuclear Engineering and Technology
• /
• 제40권6호
• /
• pp.517-526
• /
• 2008

The widespread concern regarding the management of spent fuel that mainly contributes to nuclear waste has led to the development of the sodium-cooled fast reactor (SFR) as one of the most promising future types of reactors at both national and international levels. Various reactor deployment scenarios with SFR introductions with different conversion ratios in the existing PWR-dominant nuclear fleet have been assessed to optimize the SFR deployment strategy to replace PWRs with the view toward a reduction in the level of spent fuel as well as efficient uranium utilization through its reuse in a closed fuel cycle. An efficient reactor deployment strategy with the SFR introduction starting in 2040 has been drawn based on an SFR deployment strategy in which burners are deployed prior to breakeven reactors to reduce the amount of PWR spent fuel substantially at the early deployment stage. The PWR spent fuel disposal is reduced in this way by 98% and the cumulative uranium demand for PWRs to 2100 is projected to be 445 ktU, implying a uranium savings of 115 ktU. The SFR mix ratio in the nuclear fleet near the year 2100 is estimated to be approximately 35-40%. PWRs will remain as a main power reactor type until 2100 and SFRs will support waste minimization and fuel utilization.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 1999년도 추계종합학술대회 논문집
• /
• pp.426-429
• /
• 1999

Many similar class components are stored in object-storage but the object-storage has needed the retrieval function of correct component for reuse. Accordingly this paper designed the class component retrieval viewer of the object-storage by using the improved spreading activation strategy. Object-storage has made up of information of inheritance relation, superclass, subclass, and we defined the queries about each class function. Also we specified connectionist relaxation of the each class and query, finally we gained retrieval result which showed highest activation value order of class component information including the query function.

• 상하수도학회지
• /
• 제25권6호
• /
• pp.959-970
• /
• 2011

The frequent occurrence of sewer flooding and the intermittent discharge of non-point pollutions into the receiving water body are emerging issues recently due to the climate change and urbanization. These problems might be solved by introducing a multifunctional storage facility. Unlike a single-purpose storage facility, a multi-purpose storage facility should be operated at an instant to meet for flood prevention, reduction of non-point pollution and/or rainwater reuse. Considering various operational combinations it is suggested that prevention of sewer flooding coupled with reduction of non-point pollution is the most effective operational strategy for a multi-functional storage facility.

• 농촌계획
• /
• 제20권1호
• /
• pp.161-173
• /
• 2014

This study aimed to adaptive reuse plan a take advantage of Suncheon Bay Garden Expo 2013. Detailed objectives included: to identify and foster cultural and ecological resources in Suncheon Bay and Garden Expo Site; and to search and propose characterized program in the site for efficient utilization; and to revitalize a site for the vitalizations of the region where garden culture and garden industries for strengthening local competitiveness. The study was multi-phased. The first stage included basic surveys such as site status and environmental context analysis, and questionnaires and similar case studies, and the second stage was to review the direction of preliminary planning, develop associated industries and strategies for regional revitalization and review and incorporate project details. And the third stage aimed to develop a comprehensive plan from spatial plans and program plans and suggest plans to vitalize the operation of the site. The results of the study are as follows: First, the characterization strategy is 'healing experience tourism', 'healing garden', 'healing herbal care' are suitable for the site and regional revitalization. Second, the dimension of 2013 Suncheon Bay Garden Expo which was distinguished into four areas, in consideration of the characteristics and contents of the garden expo site for efficient operation and maintenance. Four area are as follows: the park oriented area, the experiential tourism oriented area, the existing conservation oriented area, and the area for associated industries. Third, the practice of private and public partnerships is needed in order to efficiently manage and operations. The significance of this study is that it is seeking to take advantage of the Garden Expo site and set the plan by existing resources and in consideration of local characteristics, in conjunction with area to envision and proposed management plan. Some problems are remained which have not been able to deal with details program and organization and financial planning programs for the operation of the site. This is for further study.

• 한국컴퓨터정보학회논문지
• /
• 제28권1호
• /
• pp.71-78
• /
• 2023

본 논문에서는 함정 전투관리체계 소프트웨어 중 하나인 TV비디오 소프트웨어의 구조를 분석하고, 함정 하드웨어 단종대체로 인한 소프트웨어 수정을 최소화하는 표준 아키텍처를 제안한다. 하드웨어 변경에 따른 TV비디오 소프트웨어의 가변요소와 공통요소를 휘처 기반 재사용 방법(FORM:Feature-Oriented Reuse Method)을 통해 함정 전투관리체계와 통신하고 TV화면을 전시하는 공통 부분과 운용자와 TV카메라 사이의 통신을 하는 가변부분을 분리하여 함정 하드웨어 단종대체 시 수정되는 클래스가 최소화 되도록 클래스 구조를 새롭게 설계하였다. 또한, Strategy 디자인 패턴을 적용하여 하드웨어 단종대체 시 하드웨어 종속 API를 직접 사용하는 클래스를 효율적으로 추가 및 수정하고, 단종품과 대체품 모두 사용가능한 소프트웨어가 되도록 설계하였다. 마지막으로 기존 TV비디오 소프트웨어와 제안하는 TV비디오 소프트웨어의 신뢰성시험 수행 시간 및 기능시험 수행 시간을 측정하여 비교하였고, 최종적으로 하드웨어 단종대체 비용이 감소된 것을 확인하였다.

• Journal of Information Technology Applications and Management
• /
• 제15권4호
• /
• pp.61-76
• /
• 2008

As XBRL applications for sharing the contents and semantics of business reports get activated, it is increasingly necessary to reuse components systematically by the standardization in the national level. The current standardization of Korean electronic documents follows the "Guideline for XML Documents Development", which aims to maximize the reusability of components by providing a business library as well as the UN/CEFACT core components methodology. XBRL takes the same approach with the standardization of electronic documents in that their components (concepts and their structures) are defined using XSD. In XBRL, however, concept are restricted to specific types and diverse relationship types can be defined for associating the concepts to themselves and other additional information. As a result, there are some issues that may not be solved by just applying the guideline to XBRL. This paper presents a basic method for applying the methodology to XBRL applications in order to realize the systematic reusing and standardization of XBRL documents in the national level. For case analysis, FSS (Financial Supervisory Service) income statement is employed to demonstrate the possibility of the method.

• 상하수도학회지
• /
• 제24권2호
• /
• pp.157-164
• /
• 2010

Seawater desalination has vest interest in terms of ultimate water resources for the countries suffering lack of water supply. Water demand is steadily increasing due to the population growth and industrialization in Asia. The objectives of this study are to prospect the desalination market in Asia countries including China, India and Singapore, and to propose possible strategies of getting through Asia water market. Water supply in China is increasing up to $5,322,060m^3$/d in 2015. Northeast coastal areas such as Tianjin, Shandong, Hubei, and Liaoning are expected rapid increase for water demand. The investment of water supply in India would be 1.74 billion dollars during 2006 to 2015. Chennai, Kutch, and Pondicherry have possibility in introducing seawater desalination plants. Singapore is focusing on water reuse, and operating three NEWater plants (water reuse plants). BOT with total solution providing financing, construction, operation etc. is an adequate strategy to getting through China water market, while desalination plant project connecting with power plant is desirable in India. The cooperative system with Korea and Singapore creates synergy effect regarding planning and operating experience of Singapore and EPC ability of Korea.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제14권8호
• /
• pp.3437-3456
• /
• 2020

The computational science and engineering field, which combines basic science and computing technology, has emerged as a third scientific methodology, following theories and experiments. This study aimed to identify factors and relationships that affect the continued use of the computational science and engineering (CSE) platform for its successful operation, utilization, and diffusion. To that end, the quality factors of the platform were derived by combining the information system success model and the technology acceptance model. These factors affected user satisfaction and intention to reuse through users' perceived usefulness and perceived ease of use of the platform. An empirical analysis was conducted through a questionnaire survey of 373 users of the EDISON platform, a representative CSE platform in Korea. The results revealed that all quality factors have a positive influence on perceived usefulness and perceived ease of use. Specifically, information quality has a significant influence on perceived ease of use, and system quality has a significant influence on perceived usefulness. Perceived ease of use has a greater impact on user satisfaction than perceived usefulness, and satisfaction affects intention to reuse. The results can contribute to the development of CSE platforms and the development strategy to expand the number of users.

• 디지털콘텐츠학회 논문지
• /
• 제19권5호
• /
• pp.907-916
• /
• 2018

본 연구는 중국 인터넷 엔터테인먼트 개인방송 콘텐츠 수용에 대한 탐색적 연구이다. 시청자 만족에 영향을 미치는 요인을 이론적으로 검토한 후, 이들 요인과 시청자 만족이 재이용의도에 미치는 영향관계를 분석하였다. 설문을 수거하여 분석한 연구결과, 첫째, 정보 시스템 품질은 인터넷 개인방송의 시청만족에 유의한 영향을 미치는 것으로 나타났다. 둘째, 간접경험, 오락추구, 사회적 관계는 인터넷 개인방송의 시청만족에 유의한 영향을 미치는 것으로 나타났다. 셋째, 인터넷 개인방송의 시청만족이 재이용의도에 상당히 유의한 영향을 미치는 것으로 나타났다. 이들 결과는 인터넷 개인방송을 운영하는 회사의 마케팅 전략 수립과 진행자가 갖춰야할 요건의 준비에 도움이 될 것으로 기대된다.

• 한국콘텐츠학회논문지
• /
• 제20권1호
• /
• pp.202-216
• /
• 2020

본 연구에서는 대리운전업종에서 고객과의 관계를 강화하기 위한 전략으로의 마일리지프로그램에 대한 고객들의 효용과 가치를 연구하였다. 이를 위해 대리운전업을 20여년 운영해온 D사를 중심으로 1회 이상 서비스를 이용한 고객 1000명을 대상으로 설문을 진행하였으며, 성실한 설문 응답자 309명을 대상으로 분석을 실시하였다. 연구를 위해 마일리지 이용특성을 다섯 가지(정서적 혜택, 이용편리성, 경제적 유용성, 취득노력, 혜택의 다양성). 매개변수 두 가지(브랜드태도, 브랜드충성도)로 설정하였으며, 종속변수는 재이용의도로 설정하였다. 가설 검정 결과 정서적 혜택과 이용편리성, 경제적 유용성은 매개변수인 브랜드태도와 브랜드 충성도에 유의미한 결과를 보였고, 취득노력과 혜택의 다양성은 유의미한 결과를 나타내지 못하였다. 본 연구의 결과는 대리운전업에서는 고객과의 관계강화 전략을 위하여 고객들에게 정서적 혜택, 이용 편리성, 경제적 유용성을 강화하기 위해 노력해야 함을 밝혔다.