• 제목/요약/키워드: Operational practices

검색결과 154건 처리시간 0.027초

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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    • 제54권10호
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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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    • 제27권1호
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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.

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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    • 제7권11호
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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.

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

  • 이학봉;송병흠;변순철
    • 한국항공운항학회:학술대회논문집
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    • 한국항공운항학회 2016년도 춘계학술대회
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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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미래 국방 군수시스템 구축 방향 연구 (A Study on the direction of building the Defence Logistics System in the future)

  • 최종근;최상영
    • 한국국방경영분석학회지
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    • 제28권1호
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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.

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

  • 최성경;김정리;곽동경
    • 대한영양사협회학술지
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    • 제8권4호
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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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위탁급식 전문업체의 운영 현황 조사 및 현안과제 분석 (Analysis of Current Operational Practices and Issues of Contract-Managed Foodservice Companies in Republic of Korea)

  • 엄영람;류은순
    • 대한영양사협회학술지
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    • 제9권3호
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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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잉글랜드와 웨일즈의 공공질서 관리 관련 법적 틀 및 법집행 형태 (Legal framework and practices of public order management in England and Wales)

  • 정제용
    • 시큐리티연구
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    • 제54호
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    • pp.203-222
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    • 2018
  • 공공질서 관리는 형사 사법 제도에서 중요한 부분 중 하나이다. 본 연구는 법적 틀과 정책에 기반하여 영국 잉글랜드와 웨일즈의 형사 사법 기관들의 공공질서 관리 관련 법집행 형태를 평가하고자 한다. 질적 인터뷰를 통해, 다음의 4가지 주제를 발견하였다. (1) 집회시위권에 대한 강조, (2) 공공질서 관리에 대한 경찰 법집행 형태, (3) 경찰/검찰의 협업, 그리고 (4) 비디오 증거의 가치. 이러한 결과를 토대로 몇 가지 법적, 정책 및 법집행 관련 함의가 도출되었다. 이러한 함의는 경찰과 검찰의 협력뿐만 아니라 경찰의 전략적, 운영적, 전술적 개입에 관한 다양한 측면을 포함하고 있다. 잉글랜드와 웨일즈의 형사 사법 제도의 맥락은 한국과 다르지만, 일부 법집행 형태와 우수한 점은 한국적 맥락에서도 고려될 수 있을 것이다. 본 연구는 형사 사법 정부 기관간에 법률, 정책 및 법집행이 전체론적으로 조정되고 접근될 수 있다면 더 많은 효과를 얻을 수 있다고 제안한다.

Developing Intelligent Control Modules with LonTalk Protocol for Intelligent Building System & Home Automation

  • Hong, Won-Pyo;Kim, Dong-Hwa;Lee, Sung-Hak
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2002년도 학술대회논문집
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    • pp.355-361
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    • 2002
  • There are many economic and operational reasons to integrate fire alarm signaling system with other building automation system. Integration of this requires open network with for the standard communication protocol and careful design practices. The important point for this is also the development of intelligent control modules for replacing the conventional zone adapter in fire system. Therefore, this paper proposes an new conceptual design of the open distributed fire alarm signaling system for the integration of BAS, a new intelligent control modules with LonTalk protocol and a new control modules for power line communication. Newly proposed additions to LonWorks network make it very well suited for integrating fire systems with other building automation sub-systems and another BAS with low cost. Additionally, it is very important that best design practices, test procedures and building codes need to be modernized to accommodate integrated building systems.

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Marketing Practices and Value-Added Fish Product in East Indonesia

  • HIDAYAT, Sopian;PABUAYON, Isabelita M.;MUAWANAH, Umi
    • Asian Journal of Business Environment
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    • 제10권2호
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    • pp.33-41
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    • 2020
  • Purpose: This study assesses the marketing practices and value-added fish products under the Coral Reef Rehabilitation and Management Program (COREMAP) in East Indonesia. Research design, data and methodology: This study gathered qualitative and quantitative data through i) focus group discussions (FGD) with fishers, traders and COREMAP officers, ii) surveys and iii) interviews with fishermen and traders. This study surveyed 714 households (365 in COREMAP and 349 in non-COREMAP) and 33 traders (17 in COREMAP and 16 in non-COREMAP) using structured questionnaires between January and March 2016. This study used Shepherd's Index to estimate the marketing efficiency for each stage of the marketing channel. For value-added fish products, the value is determined by the difference between processed output and the raw product used. Results: Marketing cost in the non-COREMAP area was more efficient than in COREMAP as indicated by lower operational cost and higher selling price. However, no value-added fish products were produced in the non-COREMAP area. This study noted a lower catch in COREMAP area, which implies COREMAP program successfully reduced fishing pressure. Conclusions: This study identified poor infrastructure and the limited market as the major problems in developing value-added fish products in both COREMAP and non-COREMAP area.