• Title/Summary/Keyword: Weight Evaluation Index

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An Evaluative Study of the Operational Safety of High-Speed Railway Stations Based on IEM-Fuzzy Comprehensive Assessment Theory

  • Wang, Li;Jin, Chunling;Xu, Chongqi
    • Journal of Information Processing Systems
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    • v.16 no.5
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    • pp.1064-1073
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    • 2020
  • The general situation of system composition and safety management of high-speed railway terminal is investigated and a comprehensive evaluation index system of operational security is established on the basis of railway laws and regulations and previous research results to evaluate the operational security management of the high-speed railway terminal objectively and scientifically. Index weight is determined by introducing interval eigenvalue method (IEM), which aims to reduce the dependence of judgment matrix on consistency test and improve judgment accuracy. Operational security status of a high-speed railway terminal in northwest China is analyzed using the traditional model of fuzzy comprehensive evaluation, and a general technique idea and references for the operational security evaluation of the high-speed railway terminal are provided. IEM is introduced to determine the weight of each index, overcomes shortcomings of traditional analytic hierarchy process (AHP) method, and improves the accuracy and scientificity of the comprehensive evaluation. Risk factors, such as terrorist attacks, bad weather, and building fires, are intentionally avoided in the selection of evaluation indicators due to the complexity of risk factors in the operation of high-speed railway passenger stations and limitation of the length of the paper. However, such risk factors should be considered in the follow-up studies.

A Study on Comparison and Evaluation of various Strength in Seoul Granite (서울화강암의 암석강도 측정치의 비교 평가 연구)

  • 윤지선;김두영;정흥모
    • Tunnel and Underground Space
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    • v.5 no.2
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    • pp.144-154
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    • 1995
  • In this paper, we make a study on comparison and evaluation of the seoul granite properties, which are unit weight, uniaxial compressive strength, Brazilian tensile strength and, point load strength. The typical result are as follow- 1. From the measured value of point load strength anisotropy index, the seoul granite is considered to be homogeneous. 2. There is a linear relationship between uniaxial compressive strength and size corrected point load strength index. 3. Brazilian tensile strength and size corrected point load strength index are closely tied together.

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Preliminary Study to Develop the Instrument of Korean Medical Pattern Identification and Functional Evaluation for Five Organ (한의 오장변증진단평가 도구 개발을 위한 기초 연구)

  • Jang, Eunsu;Yun, Yong Gi;Yoo, Ho Rhyong;Yoo, Jeong Eun;Kim, In Chang;Park, Ji-Yeun;Jung, In-Chul
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.31 no.2
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    • pp.126-137
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    • 2017
  • This study was aimed to develop the instrument of Korean medical pattern Identification and Functional Evaluation for Five Organ. This study followed seven steps, consisted of first composition of research members, second set-up of the aim, third review for advanced research, fourth finding an important index, fifth puting on the weight for index, sixth advice from linguist and last development of draft of questionnaire. Twenty two in and out researchers joined and put the weight on each question. We developed a draft version of questionnaire of Korean medical pattern identification and functional evaluation for five organ. Most questions between pattern identification and functional evaluation of five organ have similar weight, but several ones have difference in order. Generally, specific symptom represented specific location or related with pain have relatively higher weight on pattern identification, and weakness question gained weight on functional evaluation. We develop the questionnaire of Korean medical pattern identification and functional evaluation for five organ. Following study, which will evaluate the reliability and validity, is needed.

Comparison of OECD Nations through a Comprehensive Evaluation Index for Low-Carbon Green Growth

  • Yoo, Eui Sun;Park, Sung Hyun;Lee, Min Hyung
    • STI Policy Review
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    • v.1 no.2
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    • pp.51-68
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    • 2010
  • This paper compares OECD nations by developing a comprehensive evaluation index that examines the efforts and achievements of countries toward Low-Carbon Green Growth. The input-process-output of a Low-Carbon Society system is in dynamic competition with that of a High-Carbon Society system. The model used in this study of the comprehensive evaluation index for Low-Carbon Green Growth was comprised of Large indices such as Input, Process, and Output. The Input and Output consisted of 'Social-economic' and 'Physical-ecological' Middle indices while the Process was made up of 'Stimulation mechanisms' and 'Participation of stakeholders and Knowledge flow' Middle indices. In order to calculate the comprehensive evaluation index, our model gave a weight to each indicator/index and applied a weighted arithmetic mean. Korea ranked $15^{th}$ out of 30 OECD nations in the comprehensive evaluation that analyzed Input ($14^{th}$), Process ($18^{th}$), and Output ($17^{th}$). The top five nations were Switzerland, Sweden, Denmark, Germany, and France; while Japan was $8^{th}$ and the USA $26^{th}$.

Study of Seismic Resistance Performance Evaluation Method for Existing Mid-Low Story RC Structure Buildings by Applying Fuzzy Theory (퍼지이론을 적용한 기존 중저층 철근콘크리트 건축물의 내진성능평가기법 연구)

  • Kim, Dong-Hee;Kim, Hyun-Su
    • Journal of Korean Association for Spatial Structures
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    • v.17 no.2
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    • pp.53-62
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    • 2017
  • This study aims to establish a seismic resistance performance evaluation method that makes sure to secure the seismic resistance performance of the existing mid-low story reinforced concrete structures. This study focuses on the development of the seismic resistance performance evaluation method for the overall seismic resistance performance evaluation on the buildings by applying fuzzy theory. This seismic resistance performance evaluation method considers the mutual relations among the type of force, the type of member, the type of story, and the states of deterioration of the buildings. The total seismic resistance performance index from this method was calculated by the intensity weight of each evaluation item, fuzzy measure, fuzzy integration. Moreover, the evaluation methodology was established in this study to identify the performance level of the Immediate Occupancy, Life Safe, Collapse Prevention by applying the fuzzy theory.

Integrated Evaluation of Level of Service for Urban Streets Considering Sustainability (지속가능성을 고려한 도시부 도로의 서비스수준 통합 평가 연구)

  • Choi, Yongseok;Kim, Eungcheol
    • International Journal of Highway Engineering
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    • v.14 no.6
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    • pp.75-84
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    • 2012
  • PURPOSES : This paper aims to improve the evaluation method of the Level of Service(LOS) for urban streets presented by the current Korean Highway Capacity Manual(KHCM) and suggest its utilization plan as a part of the methods to evaluate the sustainability of a transportation policy. METHODS : This paper carried out a research in 3 steps to develop a new evaluation method. First of all, this paper reviewed the previous studies related to the LOS of urban streets and the socially requested items for a sustainable transportation system. Then this paper derived an index and weight through expert questions to select an evaluation index. Lastly, this paper compared the results according to the existing evaluation methods with the new evaluation methods through case studies. This paper used an Analytic Hierarchy Process(AHP) for importance analysis and weight selection between new evaluation items and indices, and applied a Grey System Theory(GST) for a synthetic and integrated evaluation between the selected evaluation indices. RESULTS : As a result of evaluating the LOS according to the existing evaluation methods and the integrated evaluation methods using a GST through case studies, it was analyzed that new methods' results are less than or equal to the existing evaluation methods; and as a result of applying a weight between evaluation indices according to AHP, it was noticed that the total score seems to rise more when the LOS in the existing evaluation is calculated lower. It was analyzed that the LOS calculated by reflecting the newly established evaluation items and the importance between indices in this study has difference from the LOS of the existing urban streets. CONCLUSIONS : It is expected that this evaluation method can diagnose the current conditions when establishing a future sustainable traffic system and can be used for the measurement of the sustainability effects of the improvement plans and so on.

A Study on the Fire Fighting General Index for Fire Fighting of Crowded Wooden Building Cultural Asset (군집 목조 건축문화재의 화재대응을 위한 소방방재 종합지수 연구)

  • Kwon, Heung-Soon;Lee, Jeong-Soo
    • Journal of architectural history
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    • v.21 no.2
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    • pp.37-52
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    • 2012
  • This research has set up the fire fighting general index for Fire fighting of Crowded Wooden Building Cultural Asset which is composed of traditional wooden building instinct or complex. The results of this study are as follows. First, Fire fighting general index for crowded wooden building cultural asset, it is necessary to set fire fighting priority by considering fire risk and cultural asset characteristic and establish the system to cope with fire disaster in the most effective way by arranging facilities with restricted resource. Second, Fire risk is the index to draw fire and spread risk of cultural asset by applying index calculation processes such as fire load, burning velocity and ignition material spread characteristic to various aspects such as individual building and complex and combining their results. Cultural asset importance index consists of individual building evaluation, publicity security degree, area importance evaluation and historical landscape degree evaluation. Third, for each index combination process, weight of each index is drawn on the basis of AHP analysis result that is performed to the specialists of related fields. The formula to apply and combine it is prepared to apply the model to include meaning of each index and comparative importance degree.

A Study on the Korean Standard -Quality Excellence Index(KS-QEI) (KS제품 품질우수성지수(KS-QEI)에 관한 연구)

  • Yoo, Choon-Burn;Kim, Jun-Ho;Kim, Tai-Kyoo
    • Journal of Korean Society for Quality Management
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    • v.34 no.4
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    • pp.1-12
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    • 2006
  • The 'KS-QEI' is the quality evaluation model developed both by Korean Standard Association(KSA) and this research team, reflecting the characteristic of KS products' quality and the customers' demand factors. KS-QEI is a general index measuring and announcing KS products' quality excellency through the evaluation of its real user including customers and specialists. This index aimed to evaluate and announce the quality level of KS product annually which was the motivation of products' quality improvement to enterprises and guaranteed the products' reliability to customers. Ultimately, by competing in good faith among domestic enterprises and preparing foundation of continuous research and investment inducement, it was expected to improve the Korean industry's competitive power. This study was intended to develop improved KS-QEI by analysing 2006 research result, to which it had applied ameliorated and enlarged index in 2005. Especially, it established the weight by Analytic Hierarchy Process(AHP), which led to estimate weight mathematically by comparing and evaluating the importance and difficulty by its index. And this paper analyzed the research result by using multi-variate statistical methods.

Assessment of Anthropometric Obesity Indexes by Correlation with Body Composition (비만치료에 유용한 단순비만지표의 선별)

  • Ryu, Su-Min;Shin, Seung-Uoo;Kim, Kil-Soo;Shim, Woo-Jin
    • Journal of Korean Medicine for Obesity Research
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    • v.6 no.1
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    • pp.69-80
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    • 2006
  • Object : Waist circumference(WC), waist-hip ratio(WHR), waist-stature ratio(WSR), and body mass index(BMI) are commonly used for evaluating obesity. This Research were done to determine what is more sensitive obesity indexes(WC, WHR, WSR, BMI) Correlated with body composition such as body fat mass, body fat(%), visceral fat area, and fat free mass. And what is more sensitively correlated obesity indexes with % changes of body composition during weight reduction treatment. Methods : This clinical retrospective research were carried out 127 cases of female obese outpatients with weight reduction treatment during 1 month. Bioelectrical impedence analysis(for body composition) and body size(for anthropometric obesity indexes) were estimated in pre-treatment and post-treatment to evaluate the obesity indexes. Pearson correlation coefficients were used to select useful obesity index. Result & Conclusion : BMI is useful index for diagnosis and evaluation of obesity. WSR is sensitively correlated with visceral fat area and body fat(%). So, WSR is useful index for evaluating abdominal obesity and risk factors of metabolic syndrome. WC is correlated with both body fat mass and fat free mass. WHR is not optimal for diagnosis and evaluation of obesity.

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A Study of the Evaluation Scale of Traffic Noise base on Sound Quality Index (음질을 기초한 교통소음의 척도화에 관한 연구)

  • Hur, Deog-Jae;Jo, Kyoung-Sook
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2006.05a
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    • pp.1280-1284
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    • 2006
  • This paper describes the methodology for environmental assessments of traffic noise sources. An attempt is made to establish evaluation scale relationships between noise quality Parameters and subjective degrees annoyance. Subjective experimental was conducted to determine the subjective degrees annoyance that scaling score compare with reference and varieties noise source about modified traffic noises with $40{\sim}85dB$. Also a correlation analysis between noise rating index and satisfactory percentage of the noise dose response curves varied with response was conducted. As a result of study, subjective annoyance degree has not correlation of proportional linearity to the A weight noise level, but has correlation of proportional linearity to the index composed to loudness and tonality. It is suggested to be resonable level 4.9 (equivalence about 53dB) index on the out door noise limits for traffic noise and to be 6 step scale base on the linearity for evaluation traffic noise.

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