Compare of Evaluation Methodology of Activity of Metakaolin

2014 ◽  
Vol 1020 ◽  
pp. 76-79
Author(s):  
Yun Fen Hou ◽  
Si Ru Zhao ◽  
Bo Chao Xu

The activity of metakaolin which is thermal activated by kaolin originated from Shandong Zaozhuang in different temperature for 2h is evaluated by mortar strength method and acid-alkali dissolution method. The results show that metakaolin has good pozzolanic activity which is affected by calcined temperature mainly. The mortar strength method is much exact but need more time, and the acid-alkali dissolution evaluation method only need one day to two days. By comparing the results of mortar strength and the acid-alkali dissolution, it is found that the two evaluation methodologies of activity have correlation which means that acid-alkali dissolution evaluation method of metakaolin can be used instead of mortar strength method.

2013 ◽  
Vol 664 ◽  
pp. 1146-1150
Author(s):  
Jiong Zhou ◽  
La Li

The ecoenvironment of regional finance's evaluation methodology is the hot issue in recent years. This paper systematic sorted these evaluation methodologies and its research and application situation. It illustrates the contents of the single evaluation method and the comprehensive evaluation method, then comparative analysis from perspective, data dependence and operation complexity. And it make the difference and characteristics between using single and comprehensive evaluation method clear. Finally, put forward some thoughts for the regional financial ecoenvironment's evaluation.


2021 ◽  
Vol 11 (14) ◽  
pp. 6499
Author(s):  
Matthias Frankl ◽  
Mathieu Hursin ◽  
Dimitri Rochman ◽  
Alexander Vasiliev ◽  
Hakim Ferroukhi

Presently, a criticality safety evaluation methodology for the final geological disposal of Swiss spent nuclear fuel is under development at the Paul Scherrer Institute in collaboration with the Swiss National Technical Competence Centre in the field of deep geological disposal of radioactive waste. This method in essence pursues a best estimate plus uncertainty approach and includes burnup credit. Burnup credit is applied by means of a computational scheme called BUCSS-R (Burnup Credit System for the Swiss Reactors–Repository case) which is complemented by the quantification of uncertainties from various sources. BUCSS-R consists in depletion, decay and criticality calculations with CASMO5, SERPENT2 and MCNP6, respectively, determining the keff eigenvalues of the disposal canister loaded with the Swiss spent nuclear fuel assemblies. However, the depletion calculation in the first and the criticality calculation in the third step, in particular, are subject to uncertainties in the nuclear data input. In previous studies, the effects of these nuclear data-related uncertainties on obtained keff values, stemming from each of the two steps, have been quantified independently. Both contributions to the overall uncertainty in the calculated keff values have, therefore, been considered as fully correlated leading to an overly conservative estimation of total uncertainties. This study presents a consistent approach eliminating the need to assume and take into account unrealistically strong correlations in the keff results. The nuclear data uncertainty quantification for both depletion and criticality calculation is now performed at once using one and the same set of perturbation factors for uncertainty propagation through the corresponding calculation steps of the evaluation method. The present results reveal the overestimation of nuclear data-related uncertainties by the previous approach, in particular for spent nuclear fuel with a high burn-up, and underline the importance of consistent nuclear data uncertainty quantification methods. However, only canister loadings with UO2 fuel assemblies are considered, not offering insights into potentially different trends in nuclear data-related uncertainties for mixed oxide fuel assemblies.


2021 ◽  
Vol 6 ◽  
pp. 35-38
Author(s):  
Rashid Kafiatullin

Oil reservoir pressure maintenance pumps are often pushed to operate significantly outside of their original design parameters. This can cause operating problems which impact their reliability and efficiency. The author offers the evaluation methodology for energy parameters and energy saving potential of oil reservoir pressure maintenance pumps in order to develop major pump parameters like efficiency, pressure, and specific electric power. The methodology was tested on 42 pump units. The values of variations of basic parameters indicate the energy saving potential of pump units.


Author(s):  
Michael Shaughnessy

From 1980 to 2000, there were many articles written on the subject of software review and evaluation. Upon initial investigation of educational software methodologies, it appears that there are as many evaluation methodologies as there are authors presenting them. Several articles (methodology analyses) have been written describing these evaluation techniques (Bryson & Cullen, 1984; Eraut, 1989; Holznagel, 1983; Jones et al., 1999; McDougall & Squires, 1995; Reiser & Kegelmann, 1994, 1996; Russell & Blake, 1988). Each of these articles describes various methodologies and presents the most current evaluation methodology available, but fails to provide a complete history of the types of evaluation methodologies. These analyses of evaluation methodologies focus on the individual methodology, but refrain from putting individual methodologies into a greater systematic context.


2017 ◽  
Vol 893 ◽  
pp. 389-394
Author(s):  
Zai Bo Li ◽  
Tu Sheng He ◽  
Xu Guang Zhao ◽  
San Yin Zhao

In order to establish a rapid evaluation method of steel slag cementitious activity, extraction test of steel slag in EDTA-NaOH solution have been investigated and the relationship between extraction characteristics and cementitious activity expressed as mortar strength has been analyzed. Results show that the linear relationship between the quantity extracted from steel slag and the mortar compressive strength is significant. According to the analysis results of mineral composition and microscopic morphologies, EDTA-NaOH solution can selectively extract the silicate and aluminate minerals of steel slag, which could be used as a rapid evaluation method of steel slag cementitious activity.


2013 ◽  
Vol 13 (4) ◽  
pp. 326-335 ◽  
Author(s):  
Jean Scholtz ◽  
Catherine Plaisant ◽  
Mark Whiting ◽  
Georges Grinstein

Evaluation of software can take many forms ranging from algorithm correctness and performance to evaluations that focus on the value to the end user. This article presents a discussion of the development of an evaluation methodology for visual analytics environments. The Visual Analytics Science and Technology Challenge was created as a community evaluation resource. This resource is available to researchers and developers of visual analytics environments and allows them to test out their designs and visualization and compare the results with the solution and the entries prepared by others. Sharing results allows the community to learn from each other and to hopefully advance more quickly. In this article, we discuss the original challenge and its evolution during the 7 years since its inception. While the Visual Analytics Science and Technology Challenge is the focus of this article, there are lessons for many involved in setting up a community evaluation program, including the need to understand the purpose of the evaluation, decide upon the right metrics to use, and the appropriate implementation of those metrics including datasets and evaluators. For ongoing evaluations, it is also necessary to track the evolution and to ensure that the evaluation methodologies are keeping pace with the science being evaluated. The discussions on the Visual Analytics Science and Technology Challenge on these topics should be pertinent to many interested in community evaluations.


Author(s):  
Прокудін Г. С. ◽  
Коп’як Н.В. ◽  
Кузьмич В.П.

The article addresses the problems of the evaluation methodology improvement of the transport service efficiency and quality provided to passengers on suburban bus routes in accordance with the modern management system requirements. The purpose of the study is to provide practical recommendations to motor transport enterprises following which they can improve the level of service provided to suburban bus route passengers, as well as to provide a structured approach that will allow transport organizations to respond objectively and reasonably to requests resulting from new passenger transportation needs. For a comprehensive assessment of quantitative and qualitative transport service indicators, the evaluation method of the transport service efficiency is proposed. This approach makes it possible to reflect the transport service level both through the prism of enterprises` operation efficiency and the quality of transport service provision. The results of the study are of practical importance in the application of such methods in motor transport enterprises` activity providing the necessary information for management in modern business conditions.


Author(s):  
Akihito Otani ◽  
Izumi Nakamura ◽  
Tomoyoshi Watakabe ◽  
Masaki Morishita ◽  
Tadahiro Shibutani ◽  
...  

Abstract A Code Case, JSME S NC1, NC-CC-008, in the framework of JSME Nuclear Codes and Standards has been published. New seismic evaluation methodology for piping by utilizing advanced elastic-plastic response analysis method and strain-based fatigue criteria has been incorporated into the code case. It can achieve more rational seismic design than the current rule. This paper demonstrates validity and applicability of fatigue evaluation method proposed in the code case. Experimental results of a shaking table test for a piping model is used for comparing the evaluation by the current rule with one by the code case. As a result, it is confirmed that the code case can provide a rational and conservative result in the fatigue evaluation of piping. Moreover, cycle counting in the fatigue evaluation was examined for further progress of the code case.


2012 ◽  
Vol 8 (4) ◽  
pp. 1-21 ◽  
Author(s):  
D. Venkata Subramanian ◽  
Angelina Geetha

A Knowledge Management (KM) System plays a crucial role in every industry as well as in Higher Learning Institutions. Based on the earlier research works, the authors have identified the gaps, and challenges in order to develop a comprehensive KM System framework, Hybrid Evaluation method which are helpful to assess any given KM system. The primary goal of this research paper is to propose the methodology for ranking and rating of the KM system using Multi-dimensional Metric Model, Metric Database and Weighted Arithmetic Mean (WAM) method. This paper first provides the background for KM System Technology Framework and then enlists some of the significant research works, carried out in the past two decades especially on the KM Success Factors and Models, which support and validate their success. Secondly, this paper describes and illustrates how a Multi-dimensional Metric Model and Metric Database can be formed. Finally, this paper discusses how the KM Systems are evaluated and ranked for their effectiveness through the proposed evaluation methodology.


2013 ◽  
Vol 4 (3) ◽  
pp. 66-78 ◽  
Author(s):  
Eugenijus Kurilovas ◽  
Silvija Serikoviene

The paper aims to analyse and propose e-textbooks and other learning objects (LOs) quality evaluation methodology, i.e., quality model, and simple and effective expert evaluation methods, thus improving solution of educational tasks using informatics engineering methods. Qualitative learning material is one of the main factors of learning quality. Therefore, evaluation of e-textbooks and other LOs quality is one of the most relevant education problems. The problem is relevant for all participants of the educational sector – for educational institutions (e.g. schools) that have to select qualitative learning material for their needs, for education policy makers who need clear quality criteria while implementing e-textbooks and other LOs tenders, for authors of learning material (e.g. publishers) who need to know quality requirements to create e-textbooks and other LOs etc. It is obvious that some e-textbooks and other LOs could be very qualitative against some quality criteria, and the others – against the other criteria, and vice versa. Therefore, e-textbooks and other LOs quality evaluation is a typical case where one should apply multiple criteria decision analysis (MCDA) theory. In the work, MCDA principles are applied to create an objective rank of LOs alternatives according to their quality, and to evaluate each alternative’s quality against ”ideal” quality. In the work, e-textbooks and other LOs reusability and quality criteria system (i.e. model) is presented, as well as created expert quality evaluation method based on fuzzy numbers theory.


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