scholarly journals The method of using the method of composite indicators, and the method of randomized aggregates for quality evaluation of objects

Author(s):  
Л.А. Чудовская ◽  
М.М. Галилеев

В статье представлен сравнительный анализ уровня качества древесно-стружечных плит. Разработана методика построения сводного показателя качества. Моделируя неопределенность выбора весовых коэффициентов из класса допустимых векторов этих коэффициентов заданием гауссовых функций принадлежности, получаем случайный вектор весовых коэффициентов, дающий при подстановке в формулу сводного показателя рандомизированный (случайный) сводный показатель, который характеризует качество объекта с учетом неопределенности задания коэффициентов. Разброс значений рандомизированных сводных показателей будет оцениваться стандартными отклонениями соответствующих случайных величин. Автоматизированная подсистема оценки позволяет выводить результат оценки качества. Для оценивания качества ДСП результаты получены в виде отсортированных таблиц по значениям отдельных и сводных показателей качества ДСП. Привлечение дополнительной информации о сравнительной важности для потребителя отдельных показателей качества ДСП позволяет уточнить результаты анализа, существенно уменьшая разброс в оценке усредненных сводных показателей качества. На примере анализа уровня качества древесно-стружечных плит, отвечающих требованиям соответствующих нормативных документов, при помощи построения рандомизированных сводных показателей, апробирована работа методики, позволяющей проводить оценку качества исследуемых объектов. The article presents a carried out comparative analysis of a level of quality of the wood-shaving plates. The technique of constructing the composite indicator of quality is shown. Modeling the uncertainty of the choice of weighting coefficients from the class of admissible vectors of these coefficients with assignment of the Gaussian membership functions, we obtain a random vector of weight coefficients, which gives by substituting into the formula rollup randomized (random) a summary indicator that describes the quality of the object with the uncertainty of the job factors. The scatter of the values of randomized aggregates will be measured standard deviations of the respective random variables. Automated evaluation system allows you to display the result of evaluating quality. To estimate the quality of the wood-shaving plates by the results obtained in a sorted table according to the values of individual and composite indicators, quality chipboard. Attracting additional information about the relative importance to consumers of selected indicators of the quality of the wood-shaving plates allows you to refine the results of the analysis, substantially reducing the variation in the estimates of the average aggregated quality indicators. So, analysis of the level of quality of the wood-shaving plates that meets the requirements of the normative documents, with the help of constructing randomized aggregates, tested working methodology, allowing to assess the quality of the inspected objects.

Author(s):  
Baoquan Wu

Teaching quality evaluation of physical education usually involves multiple influence factors with grey and uncertain information. This brings about limitations to effective evaluation of teaching quality of physical education in colleges and universities. Thus, this paper draws merits from previous research and proposes a teaching quality evaluation system and model of physical education in colleges and universities. First, based on real situations, grey categories of evaluation state for physical education teaching quality are established. The definite weighted functions of grey category of evaluation state are confirmed. Specific steps of the teaching quality evaluation model based on grey clustering analysis are accounted for. Finally, a case study is introduced to verify the model. This model enlightens a new way to evaluate teaching quality of physical education in colleges and universities.


Author(s):  
Qigan Shao ◽  
Sung-Shun Weng ◽  
James J.H. Liou ◽  
Huai-Wei Lo ◽  
Hongbo Jiang

In China, with the acceleration of urbanization, people pay more attention to the quality of urban environment. Air pollution, vegetation destruction, water waste and pollution, and waste sorting have restricted the sustainable development of urban environment. It is important to evaluate the impact of these environmental concerns as a prerequisite to implement an effective urban environmental sustainability policy. The aim of this paper is to establish a system for evaluating sustainable urban environmental quality in China. We extracted six dimensions and 29 criteria for assessing urban sustainable environment. Then, a fuzzy technique and the best worst method were applied to obtain the weights for the dimensions and criteria. Next, grey possibility values were applied to evaluate the sustainable environmental quality of five cities: Beijing, Shanghai, Shenzhen, Guangzhou, and Hangzhou in China. A sensitivity analysis was performed to identify how the ranking of these five cities changed when varying the weights of each criterion. The results show that pollution control, the natural environment, and water management are the three most important dimensions for urban environmental quality evaluation. We suggest that controlling pollutant emissions, strengthening food waste management, improving clean production processes, and utilizing heat energy are the effective measures to improve the urban environment and achieve sustainable urban environmental development.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Xuan Zhang

An efficient and effective mechanism is required for quality education in schools, colleges, and universities. After the pandemic worldwide, every organization worked online from home instead of on the site. The educational institutes started online classes using various platforms. The quality of education using online classes is affected by numerous factors, including hardware, software, and the internet. Therefore, in this paper, the quality evaluation of internet education using a regression algorithm is proposed. The proposed system optimizes the hardware design and functions of the client end of the internet education of colleges and universities. It determines the time response data sequence of the grey prediction model and ensures that the proposed scheme’s prediction accuracy is high. By adopting the logistic regression, the rules for the overall evaluation of the education quality are formulated. The database of the rules for the overall evaluation of the education quality of the internet of colleges and universities is generated. Experimental results show that the response time of the education quality evaluation system is about 1.3 sec. The probability of failure is very low than the existing literature.


Author(s):  
Bin Lu

This study aims at investigating the difference between attitude towards the construction of quality monitoring system on linguistic landscape of Chinese tourism, and the current situation on regional special linguistic landscape program. By analyzing the degree of participation in serving for improvement the quality of local linguistic landscape, this survey carries out quantitative analysis of attitude research on constructing the benchmark indicators, program management, process control and quality evaluation; explores a sustainable development mode on linguistic landscape assessment for national tourism; promotes the formulation, implementation and promotion of the quality monitoring system on linguistic landscape tourism from 520 feedbacks of respondents. And the objectives of this research were to 1) to investigate the attitudes towards social influence and implementation of series of Standards and Guidance for English Translation and Usage in Public Service(2017-2019); 2) to study the factors that influence different attitudes and opinions; 3) to explore quality evaluation system of linguistic landscape, and promote linguistic landscape evaluation indicators and modes. The conclusion is that the governments should construct the common understanding of program mode and collaborative development on quality monitoring system.


2019 ◽  
pp. 14-17
Author(s):  
V.P. PROZHERIN ◽  
V.L. YALUGA ◽  
A.L. DIDIKINA ◽  
E.N. TURENKOVA ◽  
O.P. VASILIEVA ◽  
...  

Рассмотрены результаты оценки качества молока холмогорских коров. Целью исследований явилось изучение способа формирования контрольной суточной пробы молока у подконтрольных животных. Для этого было организовано и проведено 744 сеанса доения коров при привязном содержании, кормлении по графику и трехкратном доении. Было установлено, что суточный удой молока у подконтрольных коров составил 28,8 кг, при этом наибольшее количество молока (14,1 кг, или 49) было получено в среднем за утренний сеанс доения. На основании лабораторных исследований выявлено, что при удое 28,80,41 кг молока за контрольные сутки средние показатели селекционного контроля качества молока коров по массовой доле жира были достаточно высокими (3,950,05), а по массовой доле белка (3,060,01) значительно ниже стандарта породы (3,30). В то же время повышенной жирномолочностью (4,850,06) характеризуется молоко, полученное за дневной сеанс доения, что достоверно выше (Р0,001) показателей содержания жира в молоке за утренний и вечерний сеансы доения, соответственно, на 1,49 и на 0,71. Средние показатели белковомолочности молока были установлены пониженными за дневной сеанс и составили 3,020,01, что достоверно ниже на 0,03 (при Р0,05) средних показателей за утренний сеанс и на 0,08 белка (Р0,001) средних показателей за вечерний сеанс доения коров. Проведенными исследованиями доказано, что достоверность результатов оценки качественных показателей молока коров за контрольные сутки, а впоследствии и за лактацию, во многом определяется способом формирования пробы молока для лабораторного анализа. Для достижения селекционных целей при работе с холмогорской породой крупного рогатого скота была разработана и апробирована автоматизированная система селекционного контроля качества молока коров.The study analyses results of evaluation of selected milk quality from Kholmogori cows. The goal of theresearch was to study the method of forming the average daily milk sample of the cows under control. To this end 744 milking sessions of dairy cows on fixedtime scheme of feeding, in confinement housing system with 3 milkings a day were held. The results of the study showed that daily milk performance of Kholmogori cows in the research was 28,8 kg, while most of the milk (14,1 kg or 49) was milked in the morning milking session. On the base of the laboratory analysis it was found that while the average daily performance was 28,80,41 kg, the mean characteristics of selected milk quality of Kholmogori cows in fat were quite high (3,950,05), and the protein outcome was lower than average in the breed (3.30). At the same time milk in the midday session had higher outcome of fat (4,850.06), which is reliably higher (P0,999) than characteristics of fat content in morning and evening milkings, 1,49 and 0,71 higher respectively. It is remarkable that average characteristics of milk protein were set lower for the midday milking and were 3,020,01, which is reliably 0,03 lower (P0.999) than average figures for the evening milking. The research proved that reliability ofresults estimation of the selected quality milk for the test day, and subsequently for the lactation largely depends on the method of forming the daily milk sample for the laboratory analysis.For the selection purposes an automated evaluation system for selected milk quality of Kholmogori dairy cattle was developed and tested.


2016 ◽  
Vol 38 (0) ◽  
pp. 0-0
Author(s):  
Jan Krupa ◽  
Izabela Cichocka

Purpose. The article shows the importance of health tourism, including spa tourism, as well as current trends in the development of health resorts and sanatorium facilities. Method. The existing data from a survey carried out in health resorts in the years 2011-2013 were used, using standardized evaluation questionnaires. Findings. The data illustrates the level of visitors’ satisfaction with the quality of services and range of offers in selected sanatoriums. The visitors generally assessed the medical and nursing care, the range and quality of treatment services and rehabilitation as good, while in the assessment of local conditions and food as well as the tourist attractiveness of the destination, they reported varied opinions over the analyzed years. Research and conclusion limitations . Limitations of the research and analysis and the comparability of data between the sanatoriums primarily result from a diverse number of respondents in particular locations and differences in the construction of the research tool which was the questionnaire. Furthermore, the opinions of the visitors may be biased and some of them may not have comparison with conditions prevailing in other spa facilities in Poland. Practical implications. The opinions and comments of the respondents can provide additional information for the management of health resorts and local authorities in terms of taking care of the quality of services. Originality. The article presents the most important trends in health tourism, including spa tourism, which was observed in the studied health resorts and sanatoria facilities, as well as the visitors’ feelings about the quality of services and the attractiveness of the range of treatment, rehabilitation and prevention. Type of paper. The article is empirical.


2020 ◽  
Vol 15 (6) ◽  
pp. 1934578X2093164
Author(s):  
Huiwei Bao ◽  
Huailei Yang ◽  
Feng Wang ◽  
Kaixuan Zhou ◽  
Yanan Yang ◽  
...  

Pharbitidis Semen is a traditional Chinese medicine(TCM) with a long history for treatment of edema and fullness, fecal and urinary retention, phlegm and retained fluid, and abdominal pain due to parasitic infestation. Since Pharbitidis Semen is distributed throughout the country, the quality of the medicine from different origins may be varied. Moreover, the reported method could not control the quality comprehensively. In this article, a fingerprint of Pharbitidis Semen has been established based on a high-performance liquid chromatography (HPLC) method. In addition, the contents of the 2 main effective components were determined simultaneously. The reference HPLC fingerprint was obtained according to the chromatograms of test samples. The similarity values were calculated by the Similarity Evaluation System for Chromatographic Fingerprint of TCM (2004 A edition). Cluster analysis of 10 batches of samples was performed using statistical software (SPSS 20.0). The HPLC fingerprints of 10 batches of Pharbitidis Semen showed 25 well-resolved common peaks in each chromatogram. Two of these peaks were assigned to protocatechuic aldehyde and caffeic acid. As a result, HPLC fingerprint similarities of 10 batches of samples were more than 0.99. Pharbitidis Semen from different habitats could be divided into 3 or 2 groups. The results of cluster analysis showed that samples classified into 1 group were associated with their habitats and breeds. At the same time, quantification results showed that the contents of protocatechuic aldehyde and caffeic acid were in the range of 0.026-0.088 and 0.019-0.053 mg/g−1 respectively. HPLC fingerprint combined with multicomponent quantification and data analysis techniques can be an efficient and useful method for monitoring the quality of Pharbitidis Semen. This study also provides a practical strategy for overall quality evaluation and control of traditional Chinese medicines.


2014 ◽  
Vol 1065-1069 ◽  
pp. 1559-1563
Author(s):  
Yu Bin Hou ◽  
Yun Liu ◽  
Yan Jie Li

Cement mixing pile is widely used in weak subgrade treatment and the quality of it has a direct bearing on the treatment effect of weak subgrade. Core drilling method is an effective method of testing quality of cement mixing pile. However, there are certain deficiencies in quality evaluation method of this kind of piles during practical application. In this paper, auxiliary evaluation criterion, established through standard test pile and combining with subgrade testing engineering is applied to the quality evaluation on test pile with construction deficiency after being combined with existing evaluation system. The result shows that the adoption of evaluation result of improved quality evaluation system can well reflect the pile construction quality of the test pile under complicated soil layer condition and is a reliable method of pile quality evaluation.


2020 ◽  
pp. 1-11
Author(s):  
Bin Li ◽  
Yanying Fei ◽  
Hui Liu

The teaching quality is the core of sustainable development in colleges and universities. The constructing scientific and reasonable teaching quality evaluation system is the key of teaching quality evaluation. This paper takes the quality of graduates as the core content, establishes a results-oriented teaching quality evaluation system in colleges and universities, and finds that the academic level of graduates and the level of competition in career selection are two quantitative dimensions reflecting the quality of graduates. Based on this, this paper establishes the evaluation model of the developmental potential index and gives the reference of the norm of teaching effect evaluation for self-evaluation. Finally, this paper discusses the components of graduate quality and the way to construct the evaluation system.


1990 ◽  
Vol 112 (1) ◽  
pp. 63-68 ◽  
Author(s):  
K. J. Dooley ◽  
S. G. Kapoor

Following Part 1 of this work, which discussed the theory behind the design of an Enhanced Quality Evaluation System (EQES), Part 2 addresses the construction of the rule base which classifies how the transfer function of the process has changed and also details the least squares algorithms used to estimate the magnitude and time of occurrence of the change. An example showing how EQES could be used to improve the quality of a turning process is given. Also shown are results of a physical experiment which used EQES to monitor changes in force signals from an end milling process.


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