• Title/Summary/Keyword: economy evaluation

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A Proposal for a Classification System and Evaluation Standards for Ensuring the Safety of Transport Ventilator in Korea (국내 운반형인공호흡기 안전성 확보를 위한 분류체계 및 평가기준 제안)

  • Kim, Ji-Hyun;Cho, Sung-Ku
    • The Korean Journal of Health Service Management
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    • v.11 no.4
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    • pp.189-202
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    • 2017
  • Objectives : This study aims to present a new classification system using evaluation standards to ensure the safety of transport ventilators used in Korea. Due to the rapid advancement of technology, various types of ventilators have been developed and as the range of application increases, so does demand. With quick access to information and a growing economy, the technology used in Korean hospitals is equivalent to that of other countries; however, regulatory and safety consciousness are still lagging in Korea. Methods : Based on researching overseas cases, reference data and standards for improving the current system in Korea are proposed. Results : According to the review of transport ventilator use in Korea, it was found that concerns about safety is due to the absence of a standardized classification system for evaluating the safety and effectiveness of transport ventilators. Conclusions : In order to improve the safety of patients and the quality of medical care, it is essential to establish guidelines and assessment standards guaranteeing the safety of transport ventilators in Korea. Clear definitions and classifications for devices must precede the application of such standards. In addition, effective evaluation standards should be developed in order to resolve problems and improve upon the current system through continuous validation.

Computationally Effective Optimization of Hybrid Vehicle Powertrain Design Using Characteristic Loss Evaluation (특성 손실 평가를 통한 하이브리드 자동차 동력전달장치의 빠른 설계 최적화)

  • Park, Seho;Ahn, Changsun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.23 no.6
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    • pp.591-600
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    • 2015
  • The efficiency of a powertrain system of hybrid vehicle is highly dependent on the design and control of the hybrid powertrain system. In other words, the optimal design of the powertrain systems is coupled with optimal control of the powertrain system. Therefore, the solution of an optimal design problem for hybrid vehicles is computationally and timely very expensive. For example, dynamic programming, which is a recursive optimization method, is usually used to evaluate the best fuel economy of certain hybrid vehicle design, and, thus, the evaluation takes tens of minutes to several hours. This research aims to accelerate the speed of efficiency evaluation of hybrid vehicles. We suggest a mathematical treat and a methodological treat to reduce the computational load. The mathematical treat is that the dynamics of system is discretized with sparse sampling time without loss of energy balance. The methodological treat is that the efficiency of the hybrid vehicle is inferred by characteristic loss evaluation that is computationally inexpensive. With the suggested methodology, evaluating a design candidate of hybrid powertrain system is taken few minutes, which was taken several hours when dynamic programming is used.

A Study on Dry Bulkers' Optimal Deadweight and Speed under Certain Available Cargo Lot Sizes (선적화물량에 따른 살적화물선의 최적적화중량준 및 속력의 결정에 관한 연구)

  • 이명진
    • Journal of the Korean Institute of Navigation
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    • v.8 no.1
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    • pp.17-48
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    • 1984
  • The economy of ship's size and speed is affected by the freight rates, sailing distances, cargo handling rates, fuel oil prices and even interest rates of the borrowed funds. It can be a step more powerful measures if the economic evaluation model takes in a cargo lot size which prevails in the shipping markets. This paper has dealt with hypothetical cargo lots which happen to the market with uniform distribution in probability. The evaluation models are either profit maximization method or cost minimization method. The former compares among different voyages in profitability to the invested funds, the later defines the transportation efficiency in ton-mile unit and be used in comparing two or more transportation means. This paper adopted both of above methods to derive out ships economical evaluation contours for the various ship's speed and deadweight for certain cargo lot sizes, which can be used as important managerial decision data in purchasing ships or selecting a most profitable one among the proposed voyages. This evaluation contours will also be efficiently used in appraising so called "handy size ships" in connection with port water depth and conditions of voyage tracks.ge tracks.

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Seismic Performance Evaluation Methodology for Nuclear Power Plants (원전 구조물의 내진성능 평가 방법론 고찰)

  • Ann, Hojune;Kim, Yousok;Kong, Jung Sik;Choi, Youngjin;Choi, Se Woon;Lee, Min Seok
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.14 no.2
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    • pp.32-40
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    • 2018
  • Since 2000, the frequency of earthquakes beyond the 5.0 magnitude quake has been increasing in the Korean peninsula. For instance, the 5.0-magnitude earthquake in Baekryong-do in 2003 has occurred, and recent earthquake with Gyeongju(2016) and Pohang(2017) measured respectively magnitude of 5.2 and 5.8 on the Richter scale. As results, the public concern and anxiety about earthquakes are increasing, and therefore it is necessarily required for social infrastructure to reinforce seismic design and energy production facilities directly related to the national economy and security. This study represents the analysis of seismic performance evaluation methodology such as Seismic Margin Assessment (SMA), Seismic Probabilistic Risk Assessment (SPRA), High Confidence Low Probability Failure (HCLPF) in nuclear power plants in order to develop optimal seismic performance improvement. Current methodologies to evaluate nuclear power plants are also addressed. Through review of the nuclear structure evaluation past and current trend, it contributes to be the basis for the improvement of evaluation techniques on the next generation of nuclear power plants.

A Study on Service Improvement Plan of Technology Trade Platform (기술거래플랫폼 서비스 개선방안에 대한 연구)

  • Cho, Gyu-Dae;Hong, Jae-Bum
    • Asia-Pacific Journal of Business
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    • v.13 no.3
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    • pp.209-225
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    • 2022
  • Purpose - The domestic technology trading market is composed of a technology trading platform with the participation of technology trading institutions. The institution that operates the technology trading platform provides various support for technology transaction. The purpose of this study is to suggest improvement plans through analysis of the services provided by the technology trading platform. Design/methodology/approach - TA model was built based on existing research and the importance and satisfaction of each evaluation item of the model were identified through the hierarchical analysis process and expert opinion gathering. Then importance-satisfaction correlation analysis was applied. Findings - As a result of analyzing the importance of the technology trading platform, supply technology information, technology value evaluation, and demand technology information are in order. Technology marketing and demand technology information are areas that require focus management and there are differences according to experience and low-skilled people suggest the need to improve technology value evaluation service. Research implications or Originality - This study is significant in that it evaluated the operational performance of a technology trading platform that had not been addressed for 15 years and suggested improvement measures. Initially a series of technology transaction processes such as technology value evaluation technology matching and technology commercialization support were expanded from simple information on previous technology and this study includes these changes.

A Study on CK-1 using the IPA Method : Focused on Experts educate on Social Economy G Univ. (IPA를 활용한 지방대학 특성화사업 분석 : G대학교 사회적경제 전문인력 양성사업을 중심으로)

  • Maeng, Hae-Yeong
    • The Journal of the Korea Contents Association
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    • v.19 no.7
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    • pp.314-322
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    • 2019
  • The purpose of this study is to analyze the importance and performance of CK-1, The research subjects were self-enrolled questionnaires for students who took social economics subjects and analyzed the importance and performance using IPA. As a result of the research, it is necessary to establish the basis of social economic specialization in order to achieve the goal of CK-1, and it is necessary to establish educational curriculum related to industry and academy in addition to cultivating creative talents. And to improve the importance of these programs and improve their performance in order to enhance the undergraduate education and attract the creative economy. The implications of this study are as follows: The results of the evaluation to achieve the goals of CK-1 recognize that the importance and the performance of the social economy students are high. However, It is necessary to make efforts to improve the university constitution, to improve the education of the undergraduate education, and to attract the creative economy in order to characterize the local university targeted by the Ministry of Education and the project team.

The Effectiveness of Service Characteristics of Car Sharing on User Evaluation and Net Benefit (카 쉐어링 서비스 특성이 사용자 평가와 순 편익에 미치는 영향)

  • Sohn, Bongjin;Choi, Jaewon;Kwon, Hyuk-Jun
    • The Journal of Society for e-Business Studies
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    • v.23 no.2
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    • pp.1-20
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    • 2018
  • Car Sharing Service is provided with sharing the vehicleas you can use it anywhere and anytime. The paper verified the factors impact between providing infrastructure characteristics such as scarcity, system quality and service quality and user evaluation factors based on DeLone & McLean IS Success Model. User evaluation factors have an influence on net benefit. D&M IS model mainly proved inner organization impact. The research collected experienced car sharing service, we analyzed the 224 respondents. The result of the hypothesis follows. The scarcity of time is negatively related to perceived social support and app trust. Provisional coupon is positively related to perceived social support and app trust. But, scarcity of quantity is not related to user evaluation factors. Most of the system qualities are related to app trust, however, privacy concern isn't related to app trust. the paper's demographic characteristic is lack of experience frequency. User evaluation factors that are perceived social support and app trust are positively related to user satisfaction and WoM intention. User satisfaction is individual impact and WoM intention is organization impact. Two factors are the net benefit in car sharing service. The area of sharing economy should more study about correlation among experimental various factors. Thus, the paper has different significant from antecedent research. because of trying to experimental analysis.

A study on Development of the Adequacy Evaluation Indicators for the Regional Industries (지역산업 육성정책의 적정성 평가지표 개발에 관한 연구)

  • Park, Sang-Ok;Won, You-Ho;Lee, Joo-Hyung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.10
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    • pp.5260-5267
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    • 2013
  • In order to create a successful regional development model, there should be an effort to foster a strategic industry which boosts a geographical features of rural areas. Because, It must be clear that the strategic industry chosen between choice and concentration of the development of the local industry development which boosts the local economy revitalization. The local government should have continual concern and roles to fulfil political subjects and keep estimating about the possibility that there could be the sustainable development by Task Ahead of the local industry. This study's indicators were established for the adequacy evaluation of the industrial policy by focusing on domestic regional development's success example. Next, Conjoint analysis was conducted on the Experts. On the basis of this analysis, the weights of indicators are derived. And this study suggest the reasonable evaluation system to take Sustainable industry plan of regional strategic. Consequently, 'Regional development' sector separate 3 categories which are 'Local economy', 'Human Resource Development', 'local marketing' and 9 indicators were derived. 'Industrial development' sector derived 9 indicators about 'Construction of infrastructure', 'Technical development' and 'business support'. Looking through the implications of this study. First, the problem needed to be supplemented based on the Diversity and concreteness of Evaluation system when government assesses regional industry development policy. Second, local government have to strategically consider the possibility of convergence between industries and easiness of network in a broad region. Finally, Foundation and support of the professional manpower and companies for the regional industries must be established.

A Feasibility Evaluation on the Outsourcing of Quality Testing and Inspection

  • Choi, Minsoo;Kim, Moohan
    • Architectural research
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    • v.9 no.1
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    • pp.47-52
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    • 2007
  • The purpose of this research is to evaluate the feasibility of outsourcing test/inspection activity in construction work. This research conducted a questionnaire of interested parties as well as a survey by Analytic Hierarchy Process (AHP) with experts on quality control. For the evaluation by AHP, five criteria were adopted and a number of pair-wise comparisons were conducted through two stages. Finally, the weighting coefficient to approve the outsourcing was calculated at 0.606 and it therefore appeared more reasonable to permit rather than prohibit outsourcing. According to the AHP result, it was found that outsourcing would be necessary to enhance the objectivity and specialties of quality testing and inspection, even though somewhat undesirable in terms of enhancing a sense of responsibility and systemically conducting the testing and inspection.

Use of Methods and Evaluation Systems of the Impact Mitigation Principle in German EIA (독일 환경영향평가에서의 자연환경의 평가절차)

  • Peters, Wolfgang
    • Journal of Environmental Impact Assessment
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    • v.2 no.2
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    • pp.49-53
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    • 1993
  • Before the EIA was established in the Federal Republic of Germany, the impact mitigation principle - a planning instrument, which has its legal foundation in the German nature conservation legislation already had {and still has} the function to valuate environmental impacts. The valuation principles and methods which have been developed in correlation to this instrument are now also used in the EIA. Particularly for the valuation of alternating effects on the different ecological landscape functions and for the valuation of ecological mitigation and compensation measures this valuation methods are used. These methods base on a special kind of modelling nature and environment Following the aim of the nature conservation act, which is to save the capacity of the landscape to perform its essential functions, not the ecological factors (soil, water, air etc.) itselfs are evaluated but the ecological functions of the landscape, which are based on the ecological factors.

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