• Title/Summary/Keyword: quantitative evaluation method

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A Study on Construction Evaluation Criteria for Securing the Objectivity in Public Construction (공공공사 시공평가 항목의 객관성 확보를 위한 주요 개선 항목 도출에 관한 연구)

  • Seo, Se Deok;Kim, Ok Kyue;Park, Hyung Keun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.39 no.6
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    • pp.913-921
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    • 2019
  • The government introduced the comprehensive evaluation bidding system with the goal of pursuing the best value and the global standard in 2016. However, for the evaluation criteria on the construction evaluation reflected to the comprehensive evaluation bidding system, the problems of the objectivity insufficiency, the inclusion of multiple subjective evaluation items, and the irrationality of the weight for each evaluation item are continue to be presented. The central office group, the local government, the relevant industry, and the expert group share recognition, but the solution is not derived. Hence, the major evaluation items to be improved were derived with the characteristics analyzed to secure the objectivity of the construction evaluation. For the analysis method, the standard deviation and the Fleiss Kappa analysis method were used by utilizing the characteristics that the construction evaluation criteria consist of all 4-point measures (good, average, insufficient, and poor). According to the result, the 10 evaluation items of the total 25 construction evaluation items were derived as the evaluation items to be improved. It was found in the analysis on the major characteristics of the derived evaluation items that the qualitative evaluation criteria such as 'Very Suitable' and 'Suitable' were commonly included in the detailed evaluation guidelines. Hence, as far as the future construction evaluation standards are concerned, the qualitative evaluation standards are sublated, and the improvement should be made mainly for the quantitative evaluation criteria enabling the objectivity assurance.

A Study on the Improvement of Condition Evaluation Method through Correlation Analysis between Evaluation Items of Reinforced Concrete Buildings (철근콘크리트 건축물의 평가항목간 상관관계 분석을 통한 상태평가방법 개선에 관한 연구)

  • Woo, Hye-Sung;Yi, Waon-Ho;Hwang, Kyung-Ran;Lee, Kwan-Hyeong
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.25 no.3
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    • pp.92-99
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    • 2021
  • In the case of precise safety inspection and precise safety diagnosis of a building, a condition evaluation must be conducted to determine the safety grade. Since 2004, an evaluation method using fuzzy theory has been introduced for quantitative condition evaluation,and the relationship and importance of reinforced concrete members using fuzzy theory have been applied. Generally, fuzzy theory is a method used to deal with ambiguous expressions with unclear correlations, but at the time of development, it seems that it was developed by applying fuzzy theory as an alternative in a situation where inspection and diagnosis result data were insufficient. Therefore, it is necessary to verify the relationship and importance of evaluation items derived based on the current fuzzy theory using actual inspection and diagnosis result data.In this study, the correlation between the evaluation items was derived by using the results of 19 precision safety inspections and 9 precision safety inspections and the performance score function formula, and using this, a reasonable durability score calculation formula of the member was presented.

Validation of One-Step Real-Time RT-PCR Assay in Combination with Automated RNA Extraction for Rapid Detection and Quantitation of Hepatitis C Virus RNA for Routine Testing in Clinical Specimens

  • KIM BYOUNG-GUK;JEONG HYE-SUNG;BAEK SUN-YOUNG;SHIN JIN-HO;KIM JAE-OK;MIN KYUNG-IL;RYU SEUNG-REL;MIN BOK-SOON;KIM DO-KEUN;JEONG YONG-SEOK;PARK SUE-NIE
    • Journal of Microbiology and Biotechnology
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    • v.15 no.3
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    • pp.595-602
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    • 2005
  • A one-step real-time quantitative RT-PCR assay in combination with automated RNA extraction was evaluated for routine testing of HCV RNA in the laboratory. Specific primers and probes were developed to detect 302 bp on 5'-UTR of HCV RNA. The assay was able to quantitate a dynamic linear range of $10^7-10^1$ HCV RNA copies/reaction ($R^2=0.997$). The synthetic HCV RNA standard of $1.84{\pm}0.1\;(mean{\pm}SD)$ copies developed in this study corresponded to 1 international unit (IU) of WHO International Standard for HCV RNA (96/790 I). The detection limit of the assay was 3 RNA copies/reaction (81 IU/ml) in plasma samples. The assay was comparable to the Amplicor HCV Monitor (Monitor) assay with correlation coefficient r=0.985, but was more sensitive than the Monitor assay. The assay could be completed within 3 h from RNA extraction to detection and data analysis for up to 32 samples. It allowed rapid RNA extraction, detection, and quantitation of HCV RNA in plasma samples. The method provided sufficient sensitivity and reproducibility and proved to be fast and labor-saving, so that it was suitable for high throughput HCV RNA test.

A Study on The Improvement for Professor Research Achievement Evaluation Applying a Case Study of Foreign Universities (외국대학 사례 조사를 통한 교수 연구업적평가 개선방안에 관한 연구)

  • Ji Hei Kang;Jongwook Lee;Yong Hwan Kim;Younghee Noh
    • Journal of Korean Library and Information Science Society
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    • v.53 no.4
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    • pp.211-232
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    • 2022
  • Research performance evaluation has been based heavily on quantitative criteria. Various limitations however were revealed and the demand for excellence in research quality was growing and the importance of qualitative evaluation factors was increasing as well. The study investigates and introduces cases for improving research evaluation that have appeared around the world since 2010. To extract qualitative factors that can be introduced in research achievement evaluation in Korea this study investigated and organized the performance evaluation cases of foreign universities and proposed the introduction of the evaluation method in Korea. Qualitative evaluation factors were extracted by analyzing achievement evaluation documents evaluation procedures and evaluation standards of top 10 universities around the world. As a results this study proposes the use of various performance evaluation documents mulch-faceted evaluation and multi-level performance evaluation process and various qualitative performance evaluation standards. In traditional bibliometrics, while the degree of citation was measured when generating research evaluation indicators, future indicators may reflect recommendation scores as indicators, or include industrial connectivity and utilization in education / industry. It is hoped that the performance evaluation method will be balanced through this paper and ultimately the professor's research achievement evaluation will be a process that can help individuals grow into excellent researchers and develop the research environment.

A Study on Business Process Based Asset Evaluation Model and Methodology for Efficient Security Management over Telecommunication Networks (정보통신망의 효율적 보안관리를 위한 비즈니스 프로세스 기반의 자산평가모델 및 방법론에 관한 연구)

  • Woo, Byoung-Ku;Lee, Gang-Soo;Chung, Tai-Myoung
    • The KIPS Transactions:PartC
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    • v.10C no.4
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    • pp.423-432
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    • 2003
  • It is essential suity management and standardized asset analysis for telecommunication networks, however existing risk analysis methods and tools are not enough to give shape of the method to evaluate value and asset. they only support asset classification schemes. Moreover, since the existing asset classification schemes are to evaluate comprehensive general risk, they are not appropriate for being applied telecommunication networks and they can´t offer any solutions to an evaluator´s subjectivity problem. In this paper, to solve these problems, we introduce the standardized definition of asset evaluation model new asset classification scheme, two-dimensional asset process classification scheme to consider business process and asset, various evaluation standards for quantitative value and qualitative evaluation. To settle an valuator´s subjectivity problem, we proposed $\beta$-distribution Delphi method.

Development of an Evaluation Chart for Landslide Susceptibility using the AHP Analysis Method (AHP 분석기법을 이용한 급경사지재해 취약성 평가표 개발)

  • Chae, Byung-Gon;Cho, Yong-Chan;Song, Young-Suk;Seo, Yong-Seok
    • The Journal of Engineering Geology
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    • v.19 no.1
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    • pp.99-108
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    • 2009
  • Since the preexisting evaluation methods of landslide susceptibility take somehow long time to determine the slope stability based on the field survey and laboratory analysis, there are several problems to acquire immediate evaluation results in the field. In order to overcome the previously mentioned problems and incorrect evaluation results induced by some subjective evaluation criteria and methods, this study tried to develop a method of landslide susceptibility by a quantitative and objective evaluation approach based on the field survey. Therefore, this study developed an evaluation chart for landslide susceptibility on natural terrain using the AHP analysis method to predict landslide hazards on the field sites. The AHP analysis was performed by a questionnaire to several specialists who understands mechanism and influential factors of landslide. Based on the questionnaire, weighting values of criteria and alternatives to influence landslide triggering were determined by the AHP analysis. According to the scoring results of the analysed weighting values, slope angle is the most significant factor. Permeability, water contents, porosity, lithology, and elevation have the significance to the landslide susceptibility in a descending order. Based on the assigned scores of each criterion and alternatives of the criteria, an evaluation chart for landslide susceptibility was suggested. The evaluation chart makes it possible for a geologist to evaluate landslide susceptibility with a total score summed up each alternative score.

A Study on the School Library Staffs' Perceptions of School Library Evaluation (학교도서관 운영평가에 대한 학교도서관 전담인력의 인식 분석)

  • Kang, Bong-Suk
    • Journal of Korean Library and Information Science Society
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    • v.50 no.1
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    • pp.293-312
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    • 2019
  • The purpose of this study is to find ways to improve the evaluation system of school library operation whose participation rate is getting lower. We conducted analyzing the current status of operating evaluation of school libraries through literature search. In doing so, questionnaire method was conducted to inquire the recognition of the 205 staff members of school libraries. The outcome of the survey shows that the participation rate of operating evaluation of school libraries decreased from 22.2% in 2009 to 7.2% in 2017. The validity of the quantitative evaluation method was significantly low at 2.84 and the validity of the qualitative evaluation method was 2.97. The average score of the validity index for 'Establishing the annual operation plan' was the highest at 3.90, and that of 'Community service' was the lowest at 2.27. The biggest reason for not participating in the evaluation was due to the staff's high workload. There is a need to seek ways to improve the evaluation index and ways to participate since the result shows very low awareness of the school library evaluation. Through this study, it is expected that the school library evaluation will become the foundation for effective revitalization of school library operation.

A Study on the Performance Evaluation of Repair Material and Method for Reinforced Concrete Structure by tong Term Exposure Experiment (장기폭로실험에 의한 철근콘크리트 구조물 보수재료 · 공법의 성능평가에 관한 연구)

  • Kim Moo-Han;Kim Yong-Ro;Kim Jae-Hwan;Ho Jang-Jong;Cho Bong-Suk
    • Journal of the Korea Concrete Institute
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    • v.16 no.5 s.83
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    • pp.659-666
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    • 2004
  • In this study, for the establishment of the performance evaluation methods and the quality control standard of durability recovery method, the quantitative exposure data by long term exposure test under the coast and air environment is accumulated and analyzed. Investigating and evaluating the result of exposure test during 18 months of exposure age under the coastal and normal atmosphere environment, micro crack, swelling and spatting of surface coating material crack of repair standards of repair material and method through continuous exposure test in the future.

Evaluation of Relationship between Radiation Dose and Image Quality according to Source to Image Receptor Distance in Rib Series Radiography (늑골 방사선검사 시 X선관 초점-영상수신체간 거리에 따른 환자선량과 화질의 연관성 평가)

  • Joo, Young-Cheol;Jung, Young-Jin
    • Journal of radiological science and technology
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    • v.41 no.5
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    • pp.391-396
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    • 2018
  • The purpose of this study was to compare and analyze the patient dose according to the distance between the X-ray tube focus and the image receptor, and to propose a new method for quantitatively evaluating the image quality. Using this quantitative evaluation method, the optimal distance for increasing x-ray image quality with low radiation dose was estimated between source and image receptor in Rib series radiography. Phantom images were obtained by changing the distance between focus and image receptor (100 cm and 180 cm). The patient radiation dose was estimated using entrance surface dose and dose area product. In order to evaluate image quality objectively, a non - reference image evaluation method was employed with paper and salt noise and Gaussian filter. As a result of this study, when the SID was changed from 100 cm to 180 cm, the entrance surface dose decreased by 4 ~ 5 times and the dose area product decreased by 3 times. In addition, there is no significant difference in image quality between of SID 180 cm and SID 100 cm. In conclusion, it was demonstrated that performing the rib series radiography at SID 180 cm is an optimal method to reduce the exposure dose and improve the image quality.

Study on the Valuation Method for Redeveloped Area of Industrial Heritage (산업 유산 재생지역에 대한 가치 평가 방법에 대한 연구)

  • Sun, Li;Pan, Young-Hwan
    • Journal of the Korea Convergence Society
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    • v.11 no.2
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    • pp.117-126
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    • 2020
  • Objective evaluation of the resources of industrial heritage regeneration area is an important prerequisite for design and improvement. The purpose of the study is to comprehensively evaluate the value of the industrial heritage regeneration area. This study identifies the method (model), combining the qualitative factor and quantitative factor. (1) Establish an evaluation system (AHP Hierarchy) based on the resources of regeneration area; (2) Choose an evaluation way based on the type of resource; (3) Calculate the value and total value of various resources in the area. The research is a case study of Canal 5 resort. It expounds the using process of the method and gets the rank and total value of each type of resource in this area, the factors influencing the value (mainly concerned with income), etc. The conclusion is that the value of the reclaimed land should be composed of both the use value and the non-use value; the same factor has different influence on different resources; different factors influence one resource to different extents.