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41.
介绍了质量体系在质量管理中的作用及地位 ,分析了质量体系在运行过程中存在的问题 ,提出了企业获取认 证后进一步提高质量体系运行有效性的方法及途径 相似文献
42.
The influences of vegetation on intraseasonal oscillation (ISO) were examined using the Community Atmosphere Model version 3 (CAM3). Two 15-year numerical experiments were completed: the first was performed with a realistic vegetation distribution (VEG run),and the second was identical to the VEG run except without land vegetation (NOVEG run). Generally speaking, CAM3 was able to reproduce the spatial distribution of the ISO, but the ISO intensity in the simulation was much weaker than that observed in nature: the ISO has a relatively much stronger signal. A comparison of the VEG run with the NOVEG run revealed that the presence of vegetation usually produces a weak ISO. The vegetation effects on ISO intensity were significant over West Africa and South Asia, especially in the summer half-year.Vegetation also plays an important role in modulating ISO propagation. The eastward propagation of the ISO in the VEG run was clearer than that in the NOVEG run over the West African and Maritime Continent regions. The northward propagation of the ISO in the VEG run was more consistent with observation than that in the NOVEG run. 相似文献
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45.
文章进行了钢材的防腐机理研究,并结合ISO 12944标准的要求,以龙湾项目合同要求为基础,从腐蚀环境、保护期望年限、涂料体系和漆膜厚度四个方面对整个龙湾项目的防腐涂装体系进行了细致的分析. 相似文献
46.
讨论电子企业在实施ISO9000质量管理体系时面对的挑战与问题,从应用角度提出探索性的看法与建议;为应对激烈的市场竞争,企业需要严密的质量体系与规范的管理制度。 相似文献
47.
新闻纸的白度、色度与不透明度 总被引:1,自引:0,他引:1
本文通过对目前新闻纸市场上新闻纸的白度、色度和不透明度的调查,结合本厂的实践提出了对新闻纸的ISO白度、CIE白度、L^*、a^*、b^*值和不透明度的合理控制范围。 相似文献
48.
本文从必要性和现实意义两方面介绍了防腐蚀企业引入ISO9000的重要性,对已取证企业如何做好质量管理体系的运行也做了简要论述。 相似文献
49.
Statistical testing for sufficient control chart performances during monitoring of grouped processes
Kevin Nikolai Kostyszyn Tobias Claus Brandstätter Thomas Vollmer Robert Schmitt 《Quality and Reliability Engineering International》2021,37(6):2555-2567
With ISO 7870-8, a standardized application of charting techniques for short runs and small mixed batches was presented in 2017. Similar to various scientific approaches, it requires that sample values from grouped processes follow nearly identical distributions. In practice, however, there tend to be differences between distribution parameters. Moreover, equal parameters do not ensure that distributions are properly aligned to the center line and control limits of the chart. These facts can lead to undesired control chart performances which can be expressed by average run lengths (ARL) during in-control and out-of-control conditions. In this work, a statistical test for sufficient control chart performances during monitoring of grouped processes based on preliminary samples is proposed. Control chart performances are defined as sufficient when they deviate within acceptable ranges from usual performances during single process monitoring in mass production. The ARL resulting from estimated distributions and planned production sequences is used as test statistic and calculated via the Markov chain approach. Exemplary tests are executed for scenarios with individuals and cumulated sum (CUSUM) charts. A simulative determination of error rates resulting from the ARL-based testing demonstrates its effectiveness in testing for sufficient control chart performances compared to an indirect testing with Levene's test and a one-way analysis of variance (ANOVA). 相似文献
50.
The aim of this study was to assess whether the systematical application of the following ISO quality management system standards: ISO 9001 (Quality Management System), ISO 22000 (Food Safety Management System), ISO 14001 (Environment Management System), ISO 13425 (Medical Device Quality Management System), ISO 27001 (Information Security Management System) and ISO 16949 (Automotive Quality Management System) have had an effect on the emergence of industrial property rights in Turkey. Information was collected about the number of ISO standard certification documents that Turkish organizations received in respect of these standards between the period of 2007 and 2013. For the same period, information about the number of granted patents, petty patents, trademarks and industrial designs in Turkey were also collected. The information was analyzed by year, industrial property right type and ISO standard. A Spearman correlation analysis was also conducted to determine the strength of association between the number of certification documents and the number of granted industrial property rights. The analysis showed that some of the ISO standards had either a positive or negative linear relationship with one or more of the granted industrial property right types. Although the total number of certification documents had decreased over the time period of the study, the number of granted industrial property rights in Turkey had increased over the same period indicating that the adoption of quality managment system standards may have led to an increase in national innovation in Turkey. This observation may help to improve innovation in other countries similar to Turkey. 相似文献