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Research on Condenser Deterioration Evolution Trend Based on ANP-EWM Fusion Health Degree
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作者 Hong Qian Haixin Wang +1 位作者 Guangji Wang Qingyun Yan 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第4期679-698,共20页
This study presents a proposed method for assessing the condition and predicting the future status of condensers operating in seawater over an extended period.The aim is to address the problems of scaling and corrosio... This study presents a proposed method for assessing the condition and predicting the future status of condensers operating in seawater over an extended period.The aim is to address the problems of scaling and corrosion,which lead to increased loss of cold resources.The method involves utilising a set of multivariate feature parameters associated with the condenser as input for evaluation and trend prediction.This methodology offers a precise means of determining the optimal timing for condenser cleaning,with the ultimate goal of improving its overall performance.The proposed approach involves the integration of the analytic network process with subjective expert experience and the entropy weightmethod with objective big data analysis to develop a fusion health degreemodel.The mathematical model is constructed quantitatively using the improved Mahalanobis distance.Furthermore,a comprehensive prediction model is developed by integrating the improved Informer model and Markov error correction.This model takes into account the health status of the equipment and several influencing factors,includingmultivariate feature characteristics.This model facilitates the objective examination and prediction of the progression of equipment deterioration trends.The present study involves the computation and verification of the field time series data,which serves to demonstrate the accuracy of the condenser health-related models proposed in this research.These models effectively depict the real condition and temporal variations of the equipment,thus offering a valuable method for determining the precise cleaning time required for the condenser. 展开更多
关键词 CONDENSER health degree improved Mahalanobis distance GC-Informer model Markov error correction
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2014-2018年山东省卫生资源配置状况及公平性分析 被引量:2
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作者 陈静静 周波 《大众科技》 2020年第4期134-137,共4页
目的:分析2014-2018年山东卫生资源配置的公平性,为优化山东卫生资源配置和布局提供参考依据。方法:运用卫生资源集聚度方法评价山东卫生资源配置的公平性。结果:按经济发展程度将山东省划分为3大区域,2018年山东省卫生资源集聚度与人... 目的:分析2014-2018年山东卫生资源配置的公平性,为优化山东卫生资源配置和布局提供参考依据。方法:运用卫生资源集聚度方法评价山东卫生资源配置的公平性。结果:按经济发展程度将山东省划分为3大区域,2018年山东省卫生资源集聚度与人口集聚度比值在0.745~1.572之间。2014-2018年间山东省卫生资源集聚度与人口集聚度比值由高到低排列,顺序为Ⅰ类地区>Ⅱ类地区>Ⅲ类地区,整体变化幅度较小。其中执业(助理)医师和注册护士的配置差异较大,且2014-2018年间配置状况并未有明显改善。结论:山东卫生资源配置总体公平性较好,但不同经济区域间存在差异,经济发展水平是影响卫生资源配置公平性的重要因素,经济发展较好区域卫生资源优于经济落后区域。执业(助理)医师和注册护士明显向经济较发达地区倾斜。 展开更多
关键词 卫生资源配置 集聚度 公平性 山东
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