• Title/Summary/Keyword: Quantitative criteria

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Establishing Quantitative Standards for Residual Alkaline Phosphatase in Pasteurized Milk

  • Kim, Dong-Hyeon;Chon, Jung-Whan;Lim, Jong-Soo;Kim, Hong-Seok;Kang, Il-Byeong;Jeong, Dana;Song, Kwang-Young;Kim, Hyunsook;Kim, Kwang-Yup;Seo, Kun-Ho
    • Food Science of Animal Resources
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    • v.36 no.2
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    • pp.194-197
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    • 2016
  • The alkaline phosphatase (ALP) assay is a rapid and convenient method for verifying milk pasteurization. Since colorimetric ALP assays rely on subjective visual assessments, their results are especially unreliable near the detection limits. In this study, we attempted to establish quantitative criteria for residual ALP in milk by using a more objective method based on spectrophotometric measurements. Raw milk was heat-treated for 0, 10, 20, 30, and 40 min and then subjected to ALP assays. The quantitative criteria for residual ALP in the milk was determined as 2 μg phenol/mL of milk, which is just above the ALP value of milk samples heat-treated for 30 min. These newly proposed methodology and criteria could facilitate the microbiological quality control of milk.

Design the generation process of software quantitative evaluation index using ISO/IEC 25023 (ISO/IEC 25023을 활용한 소프트웨어의 정량적 평가지표 생성 프로세스 설계)

  • Kim, Suwook;Lee, Jongmin;Park, Yoohyun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.5
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    • pp.508-515
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    • 2019
  • Although various quantitative indexes are used as criteria for deciding the success of software R & D projects, it is somewhat difficult to find which quantitative indexes are appropriate. In this paper, we propose a quantitative evaluation index generation process for software product development using ISO / IEC25023, which is used as a standard of software quality level, to provide criteria for quantitative evaluation index of software development. The proposed process consists of two stages. In the first step, quality characteristics and subcharacteristics of ISO / IEC25023 standard specification are derived and in the second stage, we derive an evaluation indicator guides that matches the quality characteristics and sub characteristics. The proposed quantitative evaluation index generation process is expected to be helpful for the selection of quantitative evaluation indexes according to the characteristics of software development projects.

A study on quantitative risk assessment for railway Tunnel fire (철도터널에서 차량화재시 정량적 위험도 평가에 관한 연구)

  • Yoo, Ji-Oh;Nam, Chang-Ho;Jo, Hyeong-Je;Kim, Jong-Won
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.12 no.4
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    • pp.307-319
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    • 2010
  • As we learned in Daegu subway fire accident, fire in the railway tunnel is prone to develop to large disaster due to the limitation of smoke control and smoke exhaust. In railway tunnel, in order to ensure fire safety, fire prevention and fighting systems are installed by quantitative risk assessment results. Therefore, in this research, developed the program to establish quantitative risk assessment and suggested quantitative safety assessment method including fire scenarios in railway tunnel, fire and evacuation analysis model, fatality estimate model and societal risk criteria. Moreover, this method applys to plan preventing disaster for Honam high speed railway tunnel. As results, we presented the proper distance of escape route and societal risk criteria.

Criteria-based quantitative analysis of product usability

  • Park, Kyung S;Lim, Chee Hwan
    • Journal of the Ergonomics Society of Korea
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    • v.14 no.2
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    • pp.63-73
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    • 1995
  • An approach to quantitative evaluation of product usability during the design and implementation phases of the product life cycle is presented. The evaluation starts by defining a set of usability characteristics, viz. physical, cognitive and affective characteristic. Each of these characteristics is assessed by a set of usability criteria, such as functionality, visual clarity, learmability, etc. The usability criterion is then evaluated by a checklist consisting of a detailed questionnaire. The fuzzy weighted-checklist method with linguistic variables is used for quantitative analysis. Also, the method for quantifying usability improve- ments in iterative design processes is considered. This analysis procides a quantit- ative measure, which reflects the degree of excellence of product usability during the design and development phases.

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A Study of Reliability Index Correlation Analysis in Reservoir Water-supply (저수지 용수공급량에 따른 신뢰도 지표인자의 상관관계 해석)

  • Park Ki-Bum
    • Journal of Environmental Science International
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    • v.14 no.3
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    • pp.289-296
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    • 2005
  • In this study aims is water supply criteria relations for evaluating the possible performance of water resources systems. These measures describe how likely a systems is to fail(reliability), how quickly it recovers from failure(resiliency), and how severe the consequences of failure may be(vulnerability). The performance of a criteria evaluating with a variety of operating policies illustrates their use. As a result study frequency reliability and quantitative reliability is linear relations and quantitative reliability is high reliability for equality water supply policy. As reliability and vulnerability are in inverse proportion to each other. Therefore these criteria relation analysis can be for Imha dam to variety water supply policy.

The Development of Evaluation Model for New Business Projects Using AHP and Case Study of Telecommunication Equipment Company (AHP를 이용한 신규사업과제의 평가모형 개발 및 통신장비회사의 사례연구)

  • 조성백;한인구
    • Journal of the Korean Operations Research and Management Science Society
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    • v.27 no.1
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    • pp.53-73
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    • 2002
  • The launch of a new business is crucial to the future growth and profitability of a company. A new business project typically requires a large amount of resources while it has a high possibility of failure. The evaluation of new business opportunities is therefore quite a critical decision-making to companies. This evaluation includes screening of a large number of criteria at a time which often makes desision-making very complicated. Management should evaluate the business alternatives in a sound and consistent manner that is hard to achieve because the new business evaluation is a typical semi/unstructured decision-making problem. The difficulty in such an evaluation will increase if it is required for management to consider both quantitative and qualitative criteria simultaneously. Under these circumstances, this study has proposed a decision-making framework that utilizes analytical hierarchy process(AHP). This study has identified a set of criteria essential to the new business evaluation and suggested a systematic framework for it. Both qualitative and quantitative evaluations are incorporated into the single framework in this study.

A Study on Cost-Benefit Analysis for Value of Preventing a Statistical Fatality (개인생명가치추정을 통한 안전개선 비용효과 분석에 관한 연구)

  • Park Chan-Woo;Kim Sang-Am;Wang Jong-Bae;Hong Seong-Ho;Kwak Sang-Log
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.186-191
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    • 2004
  • Whenever some new measure to promote safety is being considered, one major input into the decision making process is to be some formal assessment of the costs and benefits involved. What levels of safety do many stakeholders believe the railway should deliver? This paper is a contribution to the efforts to answer the question. In this study, under Willing-To-Pay(WTP) based value of preventing a fatality(VPF) approach, we will study how much people are willing to trade off safety against other desirable things, summarize accepted quantitative criteria for safety quantitative criteria for safety decision, describe differences between these criteria and some current risk control actions, and present an outline of work under way to address issues related to cost-benefit analysis(CBA).

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A Study of Development of the School Library Evaluation Criteria (학교도서관 평가지표 개발 연구)

  • Kwak, Chul-Wan;Noh, Young-Hee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.2
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    • pp.183-196
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    • 2009
  • The purpose of this study is to develop school library evaluation criteria by individual provincial office of education. Data was collected from several school library evaluation criteria. Based upon the data new evaluation criteria were developed in order to increase student academic achievement and apply various school environment. Evaluation items were divided into three items: library programs, school support, service. Evaluation methods were identified into survey method, statistics method, and applied standard statistics method. From three methods, applied standard statistics method was selected. This method included quantitative items and qualitative items. Quantitative items have two criteria from budget, three criteria from collection, and three criteria from use. Qualitative items have two criteria: collection and book usage.

A Quantitative Evaluation on Developmental Organization of Technical Proposals (기술제안서의 개발조직 부문에 관한 정량적 평가)

  • Choo, Kyung-Kyun;Kwon, Young-Kap;Rhew, Sung-Yul
    • Journal of Information Technology Services
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    • v.3 no.1
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    • pp.21-41
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    • 2004
  • The technical proposal suggested and published by MIC(Ministry of Information and Communication, henceforth MIC) contains too general assessment elements, which causes qualitative and subjective assessment of technical proposals. Thus, in terms of the technical proposal assessment. It lacks In fairness, validity and accuracy. Furthermore, it has a great deal of difficulty in assessment caused by the inconsistency between proposal planning and assessment methods. Also, each company has different writing format, so it is impossible to make use of its maneuvering data for the assessment. To overcome these weaknesses, our research focused on a quantitative evaluation on development organization, which is a part of organizational and administrative part of the technical proposal suggested and published by MIC. In this research, we divided development organization for the technical proposal into organization, teams, and team members, and then studied addition, deletion and merging for the assessment criteria. For the related study, we chose especially CMM(Capability Maturity Model) from a lot of international and national references, which is a model measuring the maturity of organization, and then we focused on Small-CMM which is available in the small-sized organization. We also suggested input form, description method, assessment elements for the quantitative assessment in the chosen developmental organization, and finally we proposed standard referencing criteria for the assessment. Our study concludes that our assessment method are valid and available in comparison with the previous Delphi method through a validity evaluation test.

Consistency issues in quantitative safety goals of nuclear power plants in Korea

  • Kim, Ji Suk;Kim, Man Cheol
    • Nuclear Engineering and Technology
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    • v.51 no.7
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    • pp.1758-1764
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    • 2019
  • As the safety level of nuclear power plants (NPPs) relates to the safety of individuals, society, and the environment, it is important to establish NPP safety goals. In Korea, two quantitative health objectives and one large release frequency (LRF) criterion were formally set as quantitative safety goals for NPPs by the Nuclear Safety and Security Commission in 2016. The risks of prompt and cancer fatalities from NPPs should be less than 0.1% of the overall risk, and the frequency of nuclear accidents releasing more than 100 TBq of Cs-137 should not exceed 1E-06 per reactor year. This paper reviews the hierarchical structure of safety goals in Korea, its relationship with those of other countries, and the relationships among safety goals and subsidiary criteria like core damage frequency and large early release frequency. By analyzing the effect of the release of 100 TBq of Cs-137 via consequence analysis codes in eight different accident scenarios, it was shown that meeting the LRF criterion results in negligible prompt fatalities in the surrounding area. Hence, the LRF criterion dominates the safety goals for Korean NPPs. Safety goals must be consistent with national policy, international standards, and the goals of other counties.