• Title/Summary/Keyword: Analytical criteria

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Prioritizing Service Supply-Chain Performance Measures Using Multi-Criteria Decision-Making Methodologies

  • ABBAS, Haidar;ALAWI, Alamir Al;MAKTOUMI, Khadija Al
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.843-851
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    • 2020
  • This study focuses on identifying and prioritizing the broader performance measures for the service supply chains by taking the case of Majan Electricity Company, Sohar, in the Sultanate of Oman. For an examination of the uniformity of ultimate objectives and the priorities therein, two strata of respondents with a total of fourteen respondents were approached for their valuable insights. Suitable structured instruments were personally administered to elicit the insightful and worthy responses. The two multi-criteria decision-making techniques, namely, the Fuzzy Analytical Hierarchy Process and the Best-Worst Method were used to reach a meaningful prioritization of the identified and refined broader performance measurement dimensions. The results show that there exists a minor gap between the two respondents' groups in terms of their prioritizations. The major finding points to the difference in terms of the topmost priorities as revealed by the two set of respondents. For one group of respondents, the customer satisfaction matters the most, whereas for the other group, it is the overall profitability that matters the most. This gap against the utopian state assists in concluding that there is a requirement to reorient the employees so as to have a shared and common understanding of the organizational priorities.

DECISION SUPPORT SYSTEM FOR SUBURBAN STATION REHABILITATION

  • TaeHoon Hong;Sangyoub Lee
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.855-861
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    • 2005
  • Every public agency governing infrastructure has to plan effectively for rehabilitation of existing facilities within the constraints of the capital program. Numerous technical, social, political, financial, and management constraints govern the decision to rehabilitate a facility. However, without a systematic procedure for selecting facilities for rehabilitation, within the prevailing constraints, it is possible that the funds available for rehabilitation might be suboptimized. Therefore, a decision support system that assists the user in selecting facilities for rehabilitation while considering the technical, social, financial, and political and management constraints will be useful in the decision-making process. This paper compares the Analytical Hierarchy Process (AHP) with the Swing Weight method used to prioritize functional criteria for suburban station rehabilitation. This paper also contains a brief discussion about the relevance of the Multi Attribute utility theory in developing a decision model for the problem at hand. The results of this paper provides the user with a decision support system that would prioritize the stations in order of their weights obtained by a systematic evaluation of various criteria and sub-criteria involved in the decision making process

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Decision Method of Optimal Engine System for High-Speed Ship by Analytical Hierarchy Process (AHP 기법에의한 고속선의 최적 기관 시스템 결정법)

  • H.B. Ro
    • Journal of Advanced Marine Engineering and Technology
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    • v.22 no.3
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    • pp.381-395
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    • 1998
  • The purpose of this study is to determine the optimal gas turbine system for special purpose ships. First we generate critical evaluation criteria an construct their hierarchical structure. The criteria consist of qualitative ones as well as the economic factor. Then AHP is applied to solve the decision making problem AHP gibes good results different from those only by the economic evaluation methods. And during the analysis, the procedure produces many useful informations to the decision making. The results shows that AHP is an appropriate method for these kinds of problems such as the system selection.

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Optimal Design of Geodtic Network (측지망의 최적화 설계에 관한 연구)

  • Yun, Hong-Sic;Cho, Jae-Myoung;Cho, Hyun-Joon;Sung, Woo-Jin
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2010.04a
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    • pp.151-155
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    • 2010
  • This paper describe the optimal design of geodetic network by analytical technique based on the quality criteria of network. We described an example of geodetic network design taking into account the precision, reliability and strength that are the main criteria of network design. The main goal of this paper is to evaluate the criteria to design the geodetic network coinciding with the criteria of geometrical strength and high reliability. From this study, the result shows relatively weaker strength in marginal part than the center of network. This indicated that the precision of observation in marginal part is relatively lower than the center.

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Analysis of the Priority Decision for Establishment Criteria of Environmental Sculptures in Urban Areas (대도시 옥의 환경조형물의 설치기준에 대한 우선순위 분석)

  • Lee, Sang-Seol;lee, Jeong
    • Journal of Environmental Science International
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    • v.9 no.6
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    • pp.489-494
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    • 2000
  • This research focused on the priotity decision for establishment sriteria on the effects which environmental sculptures in urban area. The analysis performed in this study used the AHP(Analytic Hierarchy Process) that is recognized as a useful decision-making tool to select and evaluate alternatives through pairwise comparison in the context of hierarchical decision structure. The results obtained from the analysis drawn by collecting the professional opinions of 5 experts for environmental sculptures are as follows: 1. The orders of establish criteria priorities on environmental sculptures were harmony of environment> symbol> public> function. The harmony of environment was the most important priority because it showed the highest weight of criteria. 2. The alternative priorities of environmental sculptures were the meaning of work>setting place> social contribution> physical quality .The meaning of work showed the highest change in the weight of alternative. 3.The sensitivity analysis of environmental sculptures demonstrated that the rate of change in the alternative priorities of the public was stabilized although the criteria importance varied, while the harmony of environment, the symbol intimated and function of priorities has their rates of weight changed if the criteria priorities were high.

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Classification of honeydew and blossom honeys by principal component analysis of physicochemical parameters

  • Choi, Suk-Ho;Nam, Myoung Soo
    • Korean Journal of Agricultural Science
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    • v.47 no.1
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    • pp.67-81
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    • 2020
  • The physicochemical parameters of honey are used to determine the botanic origin of honey and to specify the composition criteria for honey in regulations and standards. The parameters of honeydew and blossom honeys from Korean beekeepers were determined to investigate whether they complied with the composition criteria for honey in the food code legislated by Korean authority and to establish the parameters which should be subjected to principal component analysis for improved differentiation of honeys. The fructose and glucose contents of the honeydew honey did not comply with the composition criteria. The ash content of the honey was closely correlated with CIE a* and CIE L* The principal component analysis of fructose to glucose ratio, CIE a*, CIE L*, ash content, free acidity, and fructose and glucose contents enabled classification of honeydew, chestnut, multifloral, and acacia honeys. Additional advantage of the principal component analysis (PCA) is that the physicochemical parameters, such as fructose to glucose ratio (F/G) and color, can be determined using the analytical instruments for composition criteria and quality control of honey. This study suggested that composition criteria for honeydew honey should be established in the food code in accordance with international standards. The principal component analysis reported in this study resulted in improved classification of the honeys from Korean beekeepers.

Validation of an Extraction Method for the Determination of Airborne MWFs using Alternative Solvents (대체용매를 이용한 금속가공유 측정방법 타당성 평가)

  • Jeong, Jee Yeon;Baek, Nam Won
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.16 no.2
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    • pp.91-100
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    • 2006
  • The purpose of this study was to validate alternative method by using non-carcinogenic, and less toxic solvents than NIOSH analytical method 5524 for measuring the airborne MWFs in workplaces. In laboratory tests, the ETM solvents(mixture of same volume for ethyl ether, toluene, and ethanol) were selected. The alternative method of analyzing MWFs, referred to as the ETM solvent extraction method, showed 0.04 mg/sample as LOD, and 0.15 mg/sample as LOQ. The analytical precision (pooled CV, coefficient of variation) of the ETM solvent extraction method for analyzing the straight, soluble, semisynthetic, and synthetic metalworking fluid was 1.5%, 2.0%, 2.6%, 1.6%, respectively, which was similar to the precision (2.6%) of NIOSH analytical method (NIOSH 0500) for total dust. The analytical accuracy by recovery test, spiked mass calculated as extractable mass, was almost 100%. As the result of storage stability test, metalworking fluid samples should be stored in refrigerated condition, and be analyzed in two weeks after sampling. The 95% confidence limit of the estimated total standard error for the ETM solvent extraction method for analyzing the straight, soluble, semisynthetic, and synthetic metalworking fluid was ${\pm}12.6%$, ${\pm}12.5%$, ${\pm}14.0%$, and ${\pm}13.6%$, respectively, which satisfied the OSHA sampling and analytical criteria.

Development and validation of an analytical method to quantify baphicacanthin A by LC-MS/MS and its application to pharmacokinetic studies in mice

  • Jeon, So Yeon;Kim, San;Park, Jin-Hyang;Song, Im-Sook;Han, Young Taek;Choi, Min-Koo
    • Analytical Science and Technology
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    • v.35 no.2
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    • pp.60-68
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    • 2022
  • In this study, we developed and validated a sensitive analytical method to quantify baphicacanthin A in mouse plasma using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The standard calibration curves for baphicacanthin A ranged from 0.5 to 200 ng/mL and were linear, with an r2 of 0.985. The inter- and intra-day accuracy and precision and the stability fell within the acceptance criteria. Besides, we investigated the pharmacokinetics of baphicacanthin A following its intravenous (5 mg/kg) and oral administration (30 mg/kg). Intravenously injected baphicacanthin A showed biphasic elimination kinetics with high clearance and volume of distribution values. Furthermore, baphicacanthin A showed a rapid absorption but low aqueous solubility (182.51±0.20 mg/mL), resulting in low plasma concentrations and low oral bioavailability (2.49 %). Thus, we successfully documented the pharmacokinetic properties of baphicacanthin A using this newly developed sensitive LC-MS/MS quantification method, which could be used in future lead optimization and biopharmaceutic studies.

Recent Advances in a Microfluidic Paper-based Analytical Devices and its Point of Care Testing Applications (종이기반 미세유체 분석소자를 활용한 현장검사 기술과 그 응용)

  • Yoo, Yong Kyoung;Kim, Cheonjung;Lee, Junwoo;Lee, Jeong Hoon
    • Ceramist
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    • v.21 no.3
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    • pp.293-301
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    • 2018
  • Paper-based analytical devices (${\mu}PAD$) are highly advantageous for portable diagnostic systems owing to their low costs and ease of use. ${\mu}PADs$ are considered as the best candidates for realizing the World Health Organization (WHO) ASSURED criteria: affordable, sensitive, specific, user-friendly, rapid and robust, equipment-free, and deliverable to end users. However, they have several limitations such as low sensitivity and accuracy. This article reports a mini review for a micro-fluidic paper-based analytical devices (${\mu}PAD$), especially for addressing low sensitivity and accuracy issues.

Tension stiffening effect of RC panels subject to biaxial stresses

  • Kwak, Hyo-Gyoung;Kim, Do-Yeon
    • Computers and Concrete
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    • v.1 no.4
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    • pp.417-432
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    • 2004
  • An analytical model which can simulate the post-cracking nonlinear behavior of reinforced concrete (RC) members such as bars and panels subject to uniaxial and biaxial stresses is presented. The proposed model includes the description of biaxial failure criteria and the average stress-strain relation of reinforcing steel. Based on strain distribution functions of steel and concrete after cracking, a criterion to consider the tension-stiffening effect is proposed using the concept of average stresses and strains. The validity of the introduced model is established by comparing the analytical predictions for reinforced concrete uniaxial tension members with results from experimental studies. In advance, correlation studies between analytical results and experimental data are also extended to RC panels subject to biaxial tensile stresses to verify the efficiency of the proposed model and to identify the significance of various effects on the response of biaxially loaded reinforced concrete panels.