International Journal of Metrology and Quality Engineering最新文献_第3页

Impact of implementing quality control systems in laboratories associated with teaching and research institutions − The case study of the laboratory for macromolecules and colloids in the petroleum industry 在与教学和研究机构相关的实验室中实施质量控制系统的影响-石油工业中大分子和胶体实验室的案例研究

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022004

E. Vianna, Vlademir Vitaliano de Figueiredo, C. M. D. da Silva, L. Bertolino, L. Spinelli

{"title":"Impact of implementing quality control systems in laboratories associated with teaching and research institutions − The case study of the laboratory for macromolecules and colloids in the petroleum industry","authors":"E. Vianna, Vlademir Vitaliano de Figueiredo, C. M. D. da Silva, L. Bertolino, L. Spinelli","doi":"10.1051/ijmqe/2022004","DOIUrl":"https://doi.org/10.1051/ijmqe/2022004","url":null,"abstract":"The competitiveness between institutions and companies generates the need to cheapen products and services and facilitate their production. Thus, several companies establish partnerships with specialized university laboratories in order to promote the optimization of their processes. These laboratories, in order to guarantee their reliability, often resort to the application of technical standards and the obtaining of international certifications. This paper aims to discuss the relevance of international certifications by research laboratories by report a case study from a laboratory of the Federal University of Rio de Janeiro. The results of the implementation of the quality management system of Laboratory for Macromolecules and Colloids in the Petroleum Industry (LMCP) are presented, where excellent satisfaction results were obtained, as well as a very small number of failures, demonstrating that the system is effective, which generates more and more customers and carry out increasingly sophisticated research. As perspectives it is expected that the quality management system can increase the number of collaborations and high-quality service delivery between industry and the LMCP.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57886397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absolute salinity determination by oscillation-type densimetry and refractometry 用振荡式密度法和折射法测定绝对盐度

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022007

A. Furtado, Andreia Napoleão, J. Pereira, S. Moura, R. Quendera, O. Pellegrino

引用次数: 0

Study on quantification scheme of weight coefficient for electrical fire risk assessment of high-rise building 高层建筑电气火灾风险评估权重系数量化方案研究

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022010

Lei Su, Fan Zhang, Fan Yang, Lei Zhang, Yu Shen, Chongwen Wei, Zhichun Yang

{"title":"Study on quantification scheme of weight coefficient for electrical fire risk assessment of high-rise building","authors":"Lei Su, Fan Zhang, Fan Yang, Lei Zhang, Yu Shen, Chongwen Wei, Zhichun Yang","doi":"10.1051/ijmqe/2022010","DOIUrl":"https://doi.org/10.1051/ijmqe/2022010","url":null,"abstract":"Electrical fire is a very important fire type in high-rise building fire. Therefore, it has high research value for risk assessment of electric fire in high-rise buildings. However, it is difficult to accurately obtain the weight index coefficient of electrical fire risk assessment by single qualitative or quantitative risk assessment method, so the reliability and objectivity of electrical fire risk assessment cannot be guarantee. In order to solve this problem, a method of using numerical simulation to obtain different types of fire risk data is proposed. Then, taking fire risk influencing factors as the research object, a comprehensive fire risk evaluation system is established. Through the comprehensive evaluation system, the electrical fire risk data are evaluated to determine the electrical fire risk weight coefficient. The results show that the fire risk quantification scheme of weight coefficient proposed in this paper can eliminate the subjectivity of traditional expert ratings. The proposed evaluation standard is a comprehensive evaluation system based on the numerical simulation and analytic hierarchy process. Above mentioned method can improve the reliability and accuracy of the weight coefficient of electrical fire risk assessment, and provide a theoretical basis for the research and classification of fire risk.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57886508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Research on the enhancement of machine fault evaluation model based on data-driven 基于数据驱动的机械故障评估模型增强研究

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022011

Peng Cui, Xuan Luo, Xiaobang Li, Xinyu Luo

引用次数: 2

Series arc fault identification based on complete ensemble empirical mode decomposition with adaptive noise and convolutional neural network 基于自适应噪声和卷积神经网络的全集合经验模态分解串联电弧故障识别

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022013

Tongtong Shang, Wei Wang, Jigang Peng, Bingyin Xu, Haiyang Gao, Guoliang Zhai

{"title":"Series arc fault identification based on complete ensemble empirical mode decomposition with adaptive noise and convolutional neural network","authors":"Tongtong Shang, Wei Wang, Jigang Peng, Bingyin Xu, Haiyang Gao, Guoliang Zhai","doi":"10.1051/ijmqe/2022013","DOIUrl":"https://doi.org/10.1051/ijmqe/2022013","url":null,"abstract":"The effective identification of series arc faults is of considerable significance for preventing fires in residential buildings. Series arc fault currents and load currents have a similar waveform, and the fault features and nonfault features are superimposed on the current signal. Fault features are deeply hidden, making it difficult to identify them. This work proposes a method based on complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) preprocessing and a one-dimensional convolutional neural network (1DCNN). The CEEMDAN algorithm is used to decompose the collected current signals. Then, the intrinsic mode function (IMF) components with no representational significance are eliminated by calculating the Spearman correlation coefficient before inputting it into the 1DCNN. The experimental results showed that the accuracy of the method for the measured load is 99.3%. Compared with the method that directly uses original current signals as model inputs, the recognition accuracy of the algorithm was significantly improved. Therefore, the proposed algorithm can be used for series arc fault identification in residential building power distribution systems.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57886594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A double integration method for generating exact tolerance limit factors for normal populations 正态总体精确公差极限因子的二重积分法

International Journal of Metrology and Quality Engineering Pub Date : 2022-01-01 DOI: 10.1051/ijmqe/2022015

Pilsang Kang

{"title":"A double integration method for generating exact tolerance limit factors for normal populations","authors":"Pilsang Kang","doi":"10.1051/ijmqe/2022015","DOIUrl":"https://doi.org/10.1051/ijmqe/2022015","url":null,"abstract":"This article introduces a new method for generating the exact one-sided and two-sided tolerance limit factors for normal populations. This method does not need to handle the noncentral t-distribution at all, but only needs to do a double integration of a joint probability density function with respect to the two independent variables “s” (standard deviation) and “x” (sample mean). The factors generated by this method are investigated through Monte Carlo simulations and compared with the existing factors. As a result, it is identified that the two-sided tolerance limit factors being currently used in practical applications are inaccurate. For the right understanding, some factors generated by this method are presented in Tables along with a guidance for correct use of them. The AQL (Acceptable Quality Level) is a good, common measure about quality of a product lot which was already produced or will be produced. Therefore, when performing sampling inspection on a given lot using a tolerance limit factor, there is a necessity to know the AQL assigned to the factor. This new double integration method even makes it possible to generate the AQLs corresponding to the one-sided and two-sided tolerance limit factors.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57886646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Volunteerism in the last year as a moderator between empathy and altruistic social value orientation: an exploratory study. 去年志愿服务在共情与利他主义社会价值取向之间的调节作用:一项探索性研究

IF 1

International Journal of Metrology and Quality Engineering Pub Date : 2021-08-03 eCollection Date: 2022-01-01 DOI: 10.5114/cipp.2021.108258

Iwona Nowakowska

{"title":"Volunteerism in the last year as a moderator between empathy and altruistic social value orientation: an exploratory study.","authors":"Iwona Nowakowska","doi":"10.5114/cipp.2021.108258","DOIUrl":"10.5114/cipp.2021.108258","url":null,"abstract":"Background: Volunteerism is a sustained prosocial activity, and young adults are one of the most important targets for organizations recruiting volunteers. Empathy and altruistic social value orientation measured by a decomposed game are dispositional traits that might foster engagement in volunteerism.Participants and procedure: Using a self-report online-based questionnaire study on two groups of young adults (aged 18-35, N = 224 non-volunteers and N = 178 volunteers in the last year) the relationship between empathy and altruistic social value orientation in both of these groups was explored.Results: The results showed that volunteers scored significantly higher on empathy and altruistic social value orientation than non-volunteers. In non-volunteers, empathy is positively linked to altruistic social value orientation, whereas for volunteers the relationship is inversed.Conclusions: The results provide evidence that volunteers, when high on empathy, might not necessarily be ready to share financial resources with others, as operationalized by a decomposed game.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"8 1","pages":"10-20"},"PeriodicalIF":1.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10653356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79898319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Characterization of NIS neutron irradiation facility for calibration and metrological application NIS中子辐照设备的校准和计量应用特性

International Journal of Metrology and Quality Engineering Pub Date : 2021-01-01 DOI: 10.1051/IJMQE/2021007

A. El-Sersy, E. Sayed, S. H. Nagib, R. H. Bakr, R. Mahmoud

{"title":"Characterization of NIS neutron irradiation facility for calibration and metrological application","authors":"A. El-Sersy, E. Sayed, S. H. Nagib, R. H. Bakr, R. Mahmoud","doi":"10.1051/IJMQE/2021007","DOIUrl":"https://doi.org/10.1051/IJMQE/2021007","url":null,"abstract":"In this study, the Neutron Irradiation Facility (NIF) of the National Institute of Standards (NIS) was characterized for metrological applications to improve the accuracy of the calibration process. The NIS neutron irradiation facility consists of a 5 Ci Am-Be and 0.1 μg Cf-252 sources. The flux and dose rate of the Am-Be source was calculated by using MCNP5 code simulation at different distances from the source. The dose rate delivered by the source was determined using NM2-neutron monitor at different source-to-detector distances. A comparison between the measured and the calculated dose rate was performed and the deviation between them was explained in the skeletal arrangement of room scattering contribution. A shadow cone was designed and constructed to determine the scattering contribution at different source-to-detector distances. The optimum source-distance used for calibration was specified. It was found that the Am-Be calculated flux vary with distances from about 107–104 (n/cm2.S−1). The measured and the calculated dose rates were in agreement up to 150 cm distance from the source center after which the measured dose was greater than that calculated. The determined neutron scattering calculated from the measured-to-calculate dose ratio increased from 7% to 25% with increased distances from 150 to 300 cm. Moreover, the standard dose used in the calibration should be measured by a standard neutron monitor at each distance due to the higher value of the room scattering contribution where the optimum distance for calibration was 150 cm. The combined uncertainty of the measured neutron dose was 4.04%.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57885942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design parameters analysis and verification of angular vibration sensor based on magnetohydrodynamics 基于磁流体力学的角振动传感器设计参数分析与验证

International Journal of Metrology and Quality Engineering Pub Date : 2021-01-01 DOI: 10.1051/IJMQE/2020017

Wang Kundong, Youwei Ma, Wu Jianming, Zhu Qinghua, Gu Yue, Hongli Qi

引用次数: 2

Early warning signals of failures in building management systems 楼宇管理系统故障的早期预警信号

International Journal of Metrology and Quality Engineering Pub Date : 2021-01-01 DOI: 10.1051/IJMQE/2021009

J. J. Mesa-Jiménez, L. Stokes, Qingping Yang, V. Livina

{"title":"Early warning signals of failures in building management systems","authors":"J. J. Mesa-Jiménez, L. Stokes, Qingping Yang, V. Livina","doi":"10.1051/IJMQE/2021009","DOIUrl":"https://doi.org/10.1051/IJMQE/2021009","url":null,"abstract":"In the context of sensor data generated by Building Management Systems (BMS), early warning signals are still an unexplored topic. The early detection of anomalies can help preventing malfunctions of key parts of a heating, cooling and air conditioning (HVAC) system that may lead to a range of BMS problems, from important energy waste to fatal errors in the worst case. We analyse early warning signals in BMS sensor data for early failure detection. In this paper, the studied failure is a malfunction of one specific Air Handling Unit (AHU) control system that causes temperature spikes of up to 30 degrees Celsius due to overreaction of the heating and cooling valves in response to an anomalous temperature change caused by the pre-heat coil in winter period in a specific area of a manufacturing facility. For such purpose, variance, lag-1 autocorrelation function (ACF1), power spectrum (PS) and variational autoencoder (VAE) techniques are applied to both univariate and multivariate scenarios. The univariate scenario considers the application of these techniques to the control variable only (the one that displays the failure), whereas the multivariate analysis considers the variables affecting the control variable for the same purpose. Results show that anomalies can be detected up to 32 hours prior to failure, which gives sufficient time to BMS engineers to prevent a failure and therefore, an proactive approach to BMS failures is adopted instead of a reactive one.","PeriodicalId":38371,"journal":{"name":"International Journal of Metrology and Quality Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57886556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2