• Title/Summary/Keyword: Operation Strategies

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Development of a Prototype for the Digitalized Nuclear Power Plant's Main Control Room (원자력발전소 디지털형 주제어실 모형 개발)

  • Jung, Yeon-Sub;Cho, Sung-Jae
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.9 no.4
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    • pp.145-152
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    • 2009
  • Domestic Kori-1 MCR was partially modified in 2007 and will be renovated entirely in 2013. Digital devices partially replacing original analog devices have been introduced and standard alone computer systems such as SPDS have been integrated into the plant computer. Upgrading KSNP's MCR based on the ditalization is planned for 2015. However, the site engineers and operators are reluctant to the advanced systems. Therefore, a prototype for the KSNP's advanced MCR has been developed to increase the acceptance level of the operators and field engineers and also, to evaluate user interfaces and I&C architecture. For enhancing support of the operators' work, a P&ID based display system composed of multi-layers, which are linked through a context sensitive menu each other, has been adopted. The $1^{st}$ layer displays a simplified P&ID, the $2^{nd}$ layer control related diagrams such as controllers and logic diagrams, the $3^{rd}$ layer trends, etc. The end point view of MCR for KSNP is also suggested considering reliability and operability of the digital systems. Additionally, modernization strategies over the overhaul periods, that do not have much impact on operation and configuration efforts are suggested.

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A Study on Communication Safety and Evaluation Tool in Railway Communication System (열차제어시스템 통신 안정성 및 평가 도구 연구)

  • Kim, Sung-Un;Seo, Sang-Bo;Song, Seung-Mi;Jo, Chan-Hyo;Hwang, Jong-Gyu;Jo, Hyun-Jeong
    • Journal of the Korean Society for Railway
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    • v.11 no.4
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    • pp.349-356
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    • 2008
  • Put Safety-critical systems related to the railway communications are currently undergoing changes. Mechanical and electro-mechanical devices are being replaced by programmable electronics that are often controlled remotely via communication networks. Therefore designers and operators now not only have to contend with component failures and user errors, but also with the possibility that malicious entities are seeking to disrupt the services provided by theirs systems. Recognizing the safety-critical nature of the types of communications required in rail control operations, the communications infrastructure will be required to meet a number of safety requirements such as system faults, user errors and the robustness in the presence of malicious attackers who are willing to take determined action to interfere in the correct operation of a system. This paper discusses the safety strategies employed in the railway communications and proposes a security mechanism for Korean railway communication system. We present the developed communication safety evaluation tool based on the proposed security mechanism and also evaluate its protecting capability against the threats of masquerading, eavesdropping, and unauthorized message manipulation.

A Study on the Differentiation Strategy of Public Libraries through Strategic Competition Analysis: The Case of Public Libraries in Jung-Gu, Incheon (전략경쟁분석을 통한 공공도서관의 차별화 전략방안 연구 - 인천 중구의 공공도서관을 중심으로 -)

  • Noh, Dong-Jo;Kim, Gi-Young
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.31 no.1
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    • pp.257-284
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    • 2020
  • The purpose of this study is to derive differentiation strategy through strategy competition analysis on public libraries in order to enhance the competitiveness and efficiency of libraries. To that end, this study conducted a status analysis, management resources analysis, external and internal environment analysis on four public libraries located in Jung-gu, Incheon to identify the situation of strategy competition, and conducted a competitor analysis, customer segment analysis, and customer value analysis of four public libraries through various library related statistical data, national library operation evaluation data, library user satisfaction surveys, and interview with chief librarian and senior librarians. As the result, this study suggests three differentiation strategies by library. First of all, the four public libraries need to provide customized services targeting different target users within the region. Secondly, public libraries need to develop active library services that directly visit passive users, who are information have-nots, considering geographical accessibility and the composition of the population in the region. Last, public libraries should form a cultural community that cooperate with the local community and develop various programs that reflect the identity of the region.

Proposal Strategy and Performance Analysis of Electronic Human Resources Management Pilot Project (건설근로자공제회 전자인력관리(전자카드제)시범사업 성과 분석 및 추진전략 도출)

  • Kim, Inchie;Chin, Sangyoon;Kim, Seongah;Kim, Yeasang;Lee, Sangjun;Park, Soohun
    • Korean Journal of Construction Engineering and Management
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    • v.19 no.4
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    • pp.3-11
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    • 2018
  • The Construction Workers Mutual Aid Association is carrying out a number of strategic tasks with the goal of "contributing to improving employment and stabilizing the return of workers to construction workers through employment welfare and retirement deduction services." One of them is the retirement deduction system. The retirement allowance system is a system for the retirement income and livelihood security of construction workers who are not adequately protected by the Labor Standards Act, such as retirement allowances due to the nature of day labor. The Construction Workers Mutual Aid Association has promoted the introduction of electronic manpower management. For the efficient management of the pilot sites and the plans for the future, comprehensive evaluation of the pilot sites as well as the evaluation of the status and operation results of each pilot project site are needed. Therefore, in this study, we will develop performance indicators to evaluate the current state of electronic manpower pilot projects and analyze the actual situation of pilot project sites through actual application, and try to derive future implementation strategies.

A Study on Gilles Clement's Garden View and the 'Garden in motion' - Centering on Conceptual Comparison with William Robinson's Wild Garden - (질 클레망의 정원관(庭園觀)과 '움직이는 정원'에 대한 연구 - William Robinson의 Wild Garden과의 개념비교를 중심으로 -)

  • Kwon, Jin-Wook
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.36 no.2
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    • pp.46-53
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    • 2018
  • The background of this study was to consider regenerative environmental characteristics and develop foundations for conceptual grounds and applications in embodying sustainable garden designs demanded in our age. In doing so, this study aimed to have a conceptual understanding of Clement's garden theory influenced by Robinson's naturalistic distinction and compared it with Robinson's wild garden, and the results are as follows: First, for Clement, garden design included an ecological process to settle in the target site as aesthetics of space being formed by the movement of plants. In this sense, making a 'garden in motion' implies to design possibilities to adapt to nature based on trust in it and allow plant seeds not to be planned but to naturally go and find appropriate habitats. Second, the views to wildness can be separated into microscopic and macroscopic views and each has its own expressive characteristics. Robinson's gardens are small and subordinate and play mollification functions for existing spaces. On the contrary, Clement's gardens are the subject of the space, represent macroscopic strategies, and have top-down approaches embodied as infrastructure to play central roles in the ecology. Third, Robinson's and Clement's views to the operation of garden spaces acknowledge the inseparable relationship between nature's autonomy and gardens' wildness and deliver a value that the preservation of nature is a prerequisite to coexistence with the life we desire. Their gardens are analogized by interventions of environmental possibilism and ecological standpoints mediated by plants based on the perspective of environmental determinism.

Evaluation of Customer's Patronage Behaviors and Satisfaction Levels towards Service Quality Dimensions of University Residence Hall Foodservice (대학교 기숙사 급식소의 이용실태 조사 및 운영형태별 서비스 품질 영역에 대한 고객 만족도 평가)

  • Yang, Il-Sun;Weon, Chi-Hyun;Kang, Hye-Seung
    • Journal of the Korean Society of Food Culture
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    • v.15 no.2
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    • pp.79-94
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    • 2000
  • The purposes of this study were to : (a) analyze university students' perception and patronage behaviors to the service quality dimensions, and (b) assist university residence hall foodservices in formulating improved managerial strategies. Questionnaires were hand delivered and mailed to 1,210 university students residing in the residence hall and 13 foodservice managers. A total of 1,011 was usable; resulting in 83.6% response rate. The survey was conducted between October, 1998 and May, 1999. Statistical data analysis was completed using the SAS/Win 6.12 for Descriptive Analysis, $x^2-test$, T-test, ANOVA, and Stepwise Multiple Regression. Forty-seven percent of the respondents indicated that 'taste' was their first priority when choosing a menu. The reasons behind choosing residence hall foodservice were 'location', 'board plan', 'price', 'taste', 'opening hours', and 'menu variety'. The main reasons of dissatisfaction with the residence hall foodservice were 'board plan', 'taste', 'menu variety'. The overall satisfaction score was 2.99 out of 5. The satisfaction score of ${\ulcorner}convenience{\lrcorner}$, ${\ulcorner}food\;quality{\lrcorner}$ and ${\ulcorner}menu\;variety{\lrcorner}$were 3.25, 2.94 and 2.76, respectively. Generally, male students were more satisfied than females. Graduate students and students living in residence halls over six semesters were the most dissatisfied with the residence hall foodservice. Residence hall students were dissatisfied with the variables ${\ulcorner}menu\;variety{\lrcorner}$ and ${\ulcorner}facilities{\lrcorner}$in 'self-operated' operations, whereas ${\ulcorner}food\;quality{\lrcorner}$, ${\ulcorner}menu\;variety{\lrcorner}$ and ${\ulcorner}price{\lrcorner}$ in 'contracted' operations. Foodservice operations with 'less than 1,000 meals serving per day' was the highest satisfaction score(3.36) among other serving sizes. Meal price with 'less than 1,300 won' was most satisfied with students. When overall customer satisfaction and service quality dimensions were analyzed by Stepwise Multiple Regression ${\ulcorner}food\;quality{\lrcorner}$(p<.001), ${\ulcorner}price{\lrcorner}$(p<.001), ${\ulcorner}facilities{\lrcorner}$(p<.001), ${\ulcorner}convenience{\lrcorner}$(p<.001), ${\ulcorner}menu\;variety{\lrcorner}$(p<.001), ${\ulcorner}manager's\;attitude{\lrcorner}$(p<.0l), and ${\ulcorner}atmosphere{\lrcorner}$(p<.01), in decreasing order, significantly impacted on ${\ulcorner}overall\;customer\;satisfaction{\lrcorner}$.

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International case studies for deep sea water industry -Focusing on the Taiwan case- (해양심층수 산업 해외 사례 연구 -대만 사례의 분석과 시사점을 중심으로-)

  • Ju, HyunHee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.10
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    • pp.537-547
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    • 2016
  • Deep Sea Water (DSW) has been exploited mainly by industry in a few countries including the U.S., Japan, Taiwan, and Korea. The development strategy of these states has pursued various goals based on their unique industrial environments and visions. Among them, Taiwan recently started their DSW industrialization, but has rapidly developed a variety of technologies and products. On the contrary, the Korean DSW industry has remained stagnant in the initial and growing stages for years, and now appears to need new plans and strategies for further development. The current literature lacks the strategy and policies required to foster the development of the domestic DSW industry. Relying upon the case of advanced foreign DSW industries, this study delineates the current status of the Korean DSW industry and discusses its future direction. Taiwan in particular has moved forward with policy development, financial and operation systems. This study attempts to provide a set of guidelines for the Korean DSW industry by focusing on the case of its Taiwanese equivalent. The Taiwanese strategical plans include premium drinkable water, government driven industrialization, diversification of DSW technologies and development of value-added products. This study provides a new direction for the DSW industry.

Legal and Policy Tasks for Raising a Climate Fund in Response to a New Climate Regime (신기후체제 대응을 위한 기후기금 조성의 법·정책적 과제)

  • Ku, Ji Sun;Park, Chul Ho
    • Journal of Climate Change Research
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    • v.9 no.2
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    • pp.181-195
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    • 2018
  • On December 12, 2015, the Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC) adopted the Paris Agreement, in which several developed and developing countries all committed to participating in the reduction of greenhouse-gas (GHG) emissions. South Korea has submitted an intended nationally determined contribution (INDC) proposal with a target to cut down 37% greenhouse gas business as usual (BAU) until 2030 in preparation for the 2030 GHG BAU. Under the post-2020 regime, which will be launched from 2021 as the agreement entered into force early, it is expected that efforts to support GHG reduction and adaptation to climate change in developing countries will be accelerated with the utilization of technologies and financial resources of developed countries. South Korea has established the Basic Plan for Climate Change Response and the Basic National Roadmap for Greenhouse Gas Reductions by 2030 to promote the response to climate change at the government level. The Ministry of Science and ICT, as the National Designated Entity designated by the UNFCCC, has come up with middle and long-term strategies for climate technology cooperation. South-Korea has an abundance of energy-consuming industries to support its export-oriented industrial structure; it is thus expected that achieving the GHG reduction target will incur a considerable cost. Moreover, in order to meet the reduction target (11.3%) of the intended nationally determined contribution proposed by South Korea, it is necessary for South Korea to actively promote projects that can achieve GHG reduction achievements, and financial resources are needed as leverage to reduce risks that can occur in the early stages of projects and attract private sector investment. This paper summarizes the theoretical discussions on climate finance and conducted a comparative analysis on the status of the funds related to climate change response in the UK, Germany, Japan and Denmark. Through this, we proposed the legal and policy tasks that should be carried forward to raise public funds that can be used for creation of new industries related to climate change as well as to reduce GHG emissions in South Korea. The Climate Change Countermeasures Act, which has been proposed by the National Assembly of South-Korea, stipulates the establishment of funds but there is no additional funding except for general account. In this regard, it is also possible to take measures such as the introduction of carbon tax or the collection and use of royalties through technology research and development projects for climate change, such as Industrial Technology Innovation Promotion Act. In addition, since funds are used in various fields such as domestic greenhouse gas reduction, technology development, and overseas projects, it is necessary to establish a system in which various ministries cooperate with the operation of the fund.

The Study of Basic Direction and Successful Fixation Way for Enhancing Educational Capacity of General High School in Gyeongsangbuk-do (경상북도 일반고의 교육역량 제고를 위한 기본방향과 성공적인 정착방안 탐색)

  • Chung, Il-Hwan
    • Korean Journal of Comparative Education
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    • v.24 no.3
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    • pp.1-23
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    • 2014
  • The purpose of this study is to analyze some problems of general high school and provide some promotion ways of general high school in Gyeongsangbuk-do in long and short term perspective, considering necessity for consolidating educational capacity of general high school which is in disadvantage due to high school diversity and special high school promotion policy. For this, first, the study explores educational policy basis of Park Geun-hye's government, educational policy direction of Gyeongsangbuk-do, educational situation of general high school in Gyeongbuk area, and main contents of educational capacity consolidation way of general high school. Main tasks of Gyeongsangbuk-do general high school educational capacity reconsideration based on the educational capacity consolidation way of Ministry of Education are (1) enlargement of autonomy for formation and operation of focused curriculum by guidance, (2) enlargement of guidance and vocational education for general high school student, (3) consolidation of support program for student at risk, and (4) consolidation of support for general high school High-up program. For these main tasks are fixed and operated in school successfully, the fixation of school responsible management system based on geological environment and trait of each general high school, the application of whole quality control in school management, and the formation of cooperative school organizational culture should be constructed. And specific practice tasks and strategies for Gyeongsangbuk-do general high school educational capacity reconsideration (the cultivation of grobal democratic citizen, human being image in 2009 revised curriculum, and 'talented people with new thinking and genuine mind' of Gyeongsangbuk-do) are provided.

Characteristics of Occupational Exposure to Benzene during Turnaround in the Petrochemical Industries

  • Chung, Eun-Kyo;Shin, Jung-Ah;Lee, Byung-Kyu;Kwon, Ji-Woon;Lee, Na-Roo;Chung, Kwang-Jae;Lee, Jong-Han;Lee, In-Seop;Kang, Seong-Kyu;Jang, Jae-Kil
    • Safety and Health at Work
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    • v.1 no.1
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    • pp.51-60
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    • 2010
  • Objectives: The level of benzene exposure in the petrochemical industry during regular operation has been well established, but not in turnaround (TA), where high exposure may occur. In this study, the characteristics of occupational exposure to benzene during TA in the petrochemical companies were investigated in order to determine the best management strategies and improve the working environment. This was accomplished by evaluating the exposure level for the workers working in environments where benzene was being produced or used as an ingredient during the unit process. Methods: From 2003 to 2008, a total of 705 workers in three petrochemical companies in Korea were studied. Long- and short-term (< 1 hr) samples were taken during TAs. TA was classified into three stages: shut-down, maintenance and start-up. All works were classified into 12 occupation categories. Results: The long-term geometric mean (GM) benzene exposure level was 0.025 (5.82) ppm (0.005-42.120 ppm) and the short-term exposure concentration during TA was 0.020 (17.42) ppm (0.005-61.855 ppm). The proportions of TA samples exceeding the time-weighted average, occupational exposure level (TWA-OEL in Korea, 1 ppm) and the short-term exposure limit (STEL-OEL, 5 ppm) were 4.1% (20 samples of 488) and 6.0% (13 samples of 217), respectively. The results for the benzene exposure levels and the rates of exceeding the OEL were both statistically significant (p < 0.05). Among the 12 job categories of petrochemical workers, mechanical engineers, plumbers, welders, fieldman and scaffolding workers exhibited long-term samples that exceeded the OEL of benzene, and the rate of exceeding the OEL was statistically significant for the first two occupations (p < 0.05). Conclusion: These findings suggest that the periodic work environment must be assessed during non-routine works such as TA.