• Title/Summary/Keyword: Operational practices

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EXTENSION OF OPERATIONAL LIFE-TIME OF WWER-440/213 TYPE UNITS AT PAKS NUCLEAR POWER PLANT

  • Katona, Tamas Janos;Ratkai, Sandor
    • Nuclear Engineering and Technology
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    • v.40 no.4
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    • pp.269-276
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    • 2008
  • Operational license of WWER-440/213 units at Paks NPP, Hungary is limited to the design lifetime of 30 years. Prolongation by additional 20 years of the operational lifetime is feasible. Moreover, enhancement of the reactor thermal power by 8% will increase both the net power output and the competitiveness of the plant. Paks NPP is a pioneer considering the power up-rate and preparation of long-term operation of WWER-440/213 design. Systematic preparatory work for long-term operation of Paks NPP has been started in 2000. A regulatory framework and a comprehensive engineering practice have been developed. According to the authors view, creation of a gapless engineering system via consequent application of best practices, and feed-back of experiences together with proper consideration of WWER-440/V213 features are the decisive elements of ensuring the safety of long-term operation. That systematic engineering approach is in the focus of recent paper. Key elements of justification and measures for ensuring the safety of long-term operation of Paks NPP WWER-440/213 units are identified and discussed. These are the assessment of plant condition and review of adequacy of ageing management programmes, also the review, validation and reconstitution of time limited ageing analyses as core tasks of licence renewal.

Derivation of a new dose constraint applicable to radioactive discharges from Korean nuclear power plants through retrospective dose assessment

  • Kim, Soyun;Cheong, Jae Hak
    • Nuclear Engineering and Technology
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    • v.54 no.10
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    • pp.3660-3671
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    • 2022
  • A new methodology to derive a dose constraint for radioactive effluent from a unit of nuclear power plant (NPP) through retrospective assessment was developed to reflect operational flexibility in line with international standards. The new dose constraint can retain the safety margin between the offsite dose and the past dose constraints. As case studies, the new approach was applied to 24 Korean NPPs to address the limitations of the existing seven dose constraints that do not fully comply with current international radiation protection standards. Therefore, an effective dose constraint for Korean NPPs was proposed as no less than 0.15 mSv/y, which is comparable to the international practices and previous studies (0.05-0.3 mSv/y). Although the lower bound of the equivalent dose constraint was calculated as 0.17 mSv/y, it is not proposed in this study since the compliance with the derived effective dose constraint can prevent accompanied equivalent doses to any organs from exceeding equivalent dose limits. The new framework and the case studies are expected to contribute toward and support the revision of existing dose constraints for radioactive effluent from NPPs, ensuring better compliance with the current international safety standards as well as reflect the operational flexibility in practice.

The Effect of Container Shipping Supply Chain Integration on Operational Performance: The Mediating Role of Information Sharing

  • Jun-Seung Kim;Miao Su;Keun-Sik Park;Sae-Yeon Roh
    • Journal of Korea Trade
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    • v.27 no.1
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    • pp.19-41
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    • 2023
  • Purpose - Conventional supply chains (SCs) must identify facilitating roles, such as port or terminal operators, shipping companies, and freight forwarders in executing the various logistical activities that support the organizational strategies of shippers. Meanwhile, supply chain collaborative practices can engender a willingness to share relevant and mutually helpful information. To this end, this study seeks to identify the impact of supply chain integration (SCI) on information sharing (IS) and the operational performance (OP) of Korea's container-shipping industry from the perspective of social capital. Design/methodology - We established the research model for this study based on previous studies. In administering the survey, we obtained 149 valid responses from employees working in liner-shipping companies and freight forwarders in Korea. With the collected questionnaires, the study's hypotheses were tested using SPSS 26.0 and AMOS 26.0 Findings - The results indicate the existence of a mediated relationship where the impact of SCI on OP is mediated by IS. The effect of external integration (EI) on OP is fully mediated by information quality (IQ) and information-sharing content (ISC). Furthermore, EI, IQ and ISC partially mediate the relationship between internal integration (II) and OP. Originality/value - This study expands SCI contexts, where ISC and IQ respectively serve as bridges between EI and OP which has crucial implications for container-shipping companies in terms of improving their performance.

Unlocking Digital Transformation: The Pivotal Role of Data Analytics and Business Intelligence Strategies

  • Edwin Omol;Lucy Mburu;Paul Abuonji
    • International Journal of Knowledge Content Development & Technology
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    • v.14 no.3
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    • pp.77-91
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    • 2024
  • This article aims to comprehensively analyze the crucial role played by data analytics and business intelligence (BI) strategies in propelling digital transformation within diverse industries. Through an extensive literature review and examination of real-world case studies, the study employs a systematic analysis of scholarly works and industry reports. This approach provides a panoramic view of how organizations utilize data-driven insights for competitive advantages, improved customer experiences, and fostering innovation. The findings underscore the pivotal significance of data analytics and BI strategies in influencing strategic decision-making, enhancing operational efficiency, and ensuring long-term sustainability across various industries. The study stands out in its originality by offering a unique synthesis of insights derived from scholarly works and real-world case studies, contributing to a holistic understanding of the transformative impact of data analytics and BI on contemporary business practices. While the study provides valuable insights, limitations include the scope of available literature and case studies. The implications call for further research to explore emerging trends and evolving challenges in the dynamic landscape of data analytics and BI. The practical implications highlight the tangible benefits organizations can derive from integrating data analytics and BI strategies, emphasizing their role in shaping strategic decisions and fostering operational efficiency. In a broader context, the study delves into the social implications of the symbiotic relationship between data analytics, BI, and digital transformation. It explores how these strategies impact broader societal and economic aspects, influencing innovation and sustainability.

A Multi-Group Analysis of Risk Management Practices of Public and Private Commercial Banks

  • REHMAN, Khurram;KHAN, Hadi Hassan;SARWAR, Bilal;MUHAMMAD, Noor;AHMED, Wahab;REHMAN, Zia Ur
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.893-904
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    • 2020
  • The study examines the relationship between credit risk and operational risk (understanding of risk management, risk identification, risk assessment and control, and risk monitoring) on risk management practices followed by private and public sector commercial banks. The cross-sectional data method was used to check the impact of risk management practices. Data was collected from the bank employees and a total of 284 respondents were finally selected for further analysis. Measurement Invariance of Composite Models analysis is used to test the quality of the measurement model for sub-samples, and multi-group analysis is used for path analysis in sub-sample through PLS-SEM. The findings of the study as the total sample show that both types of banks are managing adequate and significant risk management practices. On the other hand, sub-groups' results show private sector banks are more momentous than public sector banks. Risk identification is significantly different at the sub-group level, which shows public sector banks are more concentrating on this type of risk. Understanding of risk management has no significant effect on both types of banks and risk assessment & control for public sector banks, and there is a difference in the risk management practices among private and public sector commercial banks.

Aviation Accident Investigation Organization and Assistance to Aircraft Accident Victims and Their Families for Air Operation Accident (항공 사고 조사 기구와 항공운항사고 시 희생자 및 그 유가족 지원에 대하여)

  • Lee, Hak-Bong;Song, Byeong-Heum;Byeon, Sun-Cheol
    • 한국항공운항학회:학술대회논문집
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    • 2016.05a
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    • pp.95-98
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    • 2016
  • It is true that Aircraft accident investigation organization of Republic of Korea does not have independent role structurally and administratively. Also, in the event of an aviation accident it does not take the appropriate response and post-institutional measures for victims and their families support. With aware of this fact and to improvement this research paper present approach direction and suggestion of issues and implications for those by researching the operational practices of the United State's Victim Family support.

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A Study on the direction of building the Defence Logistics System in the future (미래 국방 군수시스템 구축 방향 연구)

  • 최종근;최상영
    • Journal of the military operations research society of Korea
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    • v.28 no.1
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    • pp.1-16
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    • 2002
  • The object of this study is to suggest the direction of building the defence logistics system of Korea Armed Forces in the future. For the purpose of this, we surveyed the best practices among the enterprises and U.S. Defence which reformed successfully the physical distribution and logistic in recent year. Also, we analyzed our current logistics system and suggested the vision, operational concept, and the way of building this system. This system is expected to reduce the total logistics cost, speed up the logistics velocity and increase the efficiency of the combat support.

Operational Assessment of Foodservice Information Systems in Hospital Foodservice Operations (병원 영양부서의 급식정보시스템 수행도 평가)

  • Choe, Seong-Gyeong;Kim, Jeong-Ri;Gwak, Dong-Gyeong
    • Journal of the Korean Dietetic Association
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    • v.8 no.4
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    • pp.387-397
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    • 2002
  • Foodservice information systems management practices were assessed in hospital foodservice operations. A total of 46 dietetic departments were responded for the study and their practices of foodservice information systems were analyzed. The respondents were questioned about general characteristics of respondents as well as hospital foodservices implementation status of information systems. Statistical data analysis was completed using the SPSS package program for descriptive analysis, factor analysis, t-test and ANOVA test. 43.2% of total respondents gained informations by benchmarking of other hospital foodservice operations, but 7.8% gained through career education. They expected the enhanced efficiency of their tasks through implementing information systems. Based on factor analysis, information systems were divided into 6 management areas such as database management, meal management, nutrition management, purchasing management, production management and foodservice management. The average implementing scores were : database management 3.77, meal management 3.26, nutrition management 3.52, purchasing management 3.26, production management 2.73 and foodservice management 3.70 (score 1 indicates very poor and score 5 is very good). Among database management areas, standard recipe database and food item specifications database build-up scores(3.91) were relatively very high, but meal assessment and foodservice management reporting scores(2.43) were very low. The results suggest that it is necessary to build up automated foodservice management reporting system for the improvement of efficiency and productivity of operational tasks.

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Analysis of Current Operational Practices and Issues of Contract-Managed Foodservice Companies in Republic of Korea (위탁급식 전문업체의 운영 현황 조사 및 현안과제 분석)

  • Eom, Yeong-Ram;Ryu, Eun-Sun
    • Journal of the Korean Dietetic Association
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    • v.9 no.3
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    • pp.197-208
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    • 2003
  • This study was surveyed to provide the information on current operational practices and issues of contract-managed foodservice companies. Questionnaires were distributed to 79 contract-managed foodservice companies (eight large-size, 48 mid-size, 23 small-size companies) from March to May in 2002. The contract-managed foodservice companies provided averages of 269,184 (range 140,036-503,500), 14,837 (range 450-75,269), and 4,065 (range 930-8,050) meals daily from large, medium, and small-size companies, respectively. The companies managed to averages of 268.2 (160-619) foodservice contracts at large-size companies, 21.9 (5-63) contracts at mid-size companies, and 4.7 (1-10) contracts at small-size companies. The average numbers of dietitians were 298.6 (range 104-671) in large-size companies, 22.2(6-86) in mid-size companies, and 3.8(1-9) in small-size companies. The averages of sales were 156.5 billion at large-size companies, 6.7 billion at mid-size companies, and 1.7 billion at small-size companies in 2001. The contract was two types including management fee contract(5%), and profit and loss contract(95%). The cost ratios for office foodservice were 59.5% at food cost, 24.2% at labor cost, 6.3% at profit, and 10.1% at other cost. For hospital foodservice, the ratios were 54.0% at the food cost, 34.6% at labor cost, 3.0% at profit, and 11.8% at other cost. For high school foodservice, the ratios were 62.2% at the food cost, 21.5% at labor cost, 5.4% at profit, and 11.2% at other cost. When the contractors managed to the foodservice, the most important matters were the sanitation management and customer satisfaction. Also, the difficult problems were excess investment of equipments and low meal prices.

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Legal framework and practices of public order management in England and Wales (잉글랜드와 웨일즈의 공공질서 관리 관련 법적 틀 및 법집행 형태)

  • Jung, Jeyong;Ellis, Tom
    • Korean Security Journal
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    • no.54
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    • pp.203-222
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    • 2018
  • Public order management is one of the most important areas in policing. Drawing on the legal framework and policy, this study aims to assess practices of criminal justice practitioners, especially, police and prosecutors, in England and Wales. Using qualitative interviewing, four main themes are identified: (1) an emphasis on a right to protest, (2) police practices on public order management, (3) the development of police/prosecutor liaison, and (4) the value of video evidence. Based upon these findings, several legal, policy and practice implications are drawn. These implications involve a wide range of aspects concerning strategic, operational, and tactical interventions by the police, as well as collaboration between police and prosecutors. Although the criminal justice context in England and Wales is very different to South Korea, some practices and distinctions can be useful to consider in the Korean context. This study suggests that more gains can be made if legislation, policy, and practice across criminal justice nodes can be coordinated and approached holistically.