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Semi-supervised Dynamic Soft Sensor Based on Complementary Ensemble Empirical Mode Decomposition and Gated Recurrent Units

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Semi-supervised Dynamic Soft Sensor Based on Complementary E...

第31届中国过程控制会议（CPCC2020）

作者： guo runyuan LIU Han XIE guo ZHANG Youmin School of Automation and Information Engineering Xi’an University of Technology

[Objectives] Noise, redundancy and dynamic characteristics in complex industrial process data have been regarded as the key factors that affect the prediction accuracy of data-driven soft sensor models. In this paper, a semi-supervised dynamic soft sensor method is proposed to capture the dynamic characteristics of variable data while removing the noise and redundancy of the data to establish an accurate dynamic soft sensor prediction model. [Methods] First, auxiliary variable signals are decomposed effectively by complementary ensemble empirical mode decomposition(CEEMD), and the noise is eliminated based on the intrinsic mode functions(IMFs) obtained by the decomposition. Then, using the isometric feature mapping(Isomap) method to perform feature transformation of the remaining intrinsic mode functions, the variable data are reconstructed to remove the internal redundancy and noise. Finally, the preprocessed and serialized data are used to build a deep learning model based on a semi-supervised deep gated recurrent unit network aided multilayer perceptron(SSDGRU-MLP). To ensure effective training of the proposed SSDGRU-MLP model, callback functions and dropout technology are adopted. After the above offline procedures, a semi-supervised dynamic soft sensor prediction model can be obtained. Then, by importing the new serialized dataset into the established soft sensor model, the predicted values of the primary variable can be obtained through propagation over time and network depth. Since power plant air preheater is a dynamic system with complex and variable operating conditions, the semi-supervised dynamic soft sensor method proposed in this paper is used to predict rotor thermal deformation in the air preheater. So, the effectiveness and superiority of the new dynamic soft sensor are verified by this real industrial case. In our experiments, four auxiliary variables(gas temperature of the flue inlet, gas temperature of the flue outlet, air temperature of the air

关键词： dynamic soft sensor complementary ensemble empirical mode decomposition deep learning gated recurrent unit semi-supervised and dynamic modeling isometric feature mapping

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钛钢复合板焊接有限元模拟研究进展

焊管 2016年第8期39卷 54-57页

作者：汪强郭润元曾良程逞杨军国家石油天然气管材工程技术研究中心陕西宝鸡721008 宝鸡石油钢管有限责任公司钢管研究院陕西宝鸡721008 西安理工大学自动化与信息工程学院西安710048 宝鸡石油钢管有限责任公司输送管公司陕西宝鸡721008

为了深入分析钛钢复合板不同焊接方式下焊接过程的残余应力变化,以有限元数值模拟在钛钢复合板焊接方面的研究现状为基础,结合目前钛钢复合板焊接中的常用方法及工艺特点,分析了钛钢复合板焊接过程有限元模拟的研究进展和发展趋势,分析... 详细信息

为了深入分析钛钢复合板不同焊接方式下焊接过程的残余应力变化,以有限元数值模拟在钛钢复合板焊接方面的研究现状为基础,结合目前钛钢复合板焊接中的常用方法及工艺特点,分析了钛钢复合板焊接过程有限元模拟的研究进展和发展趋势,分析认为,后期钛钢复合板焊接有限元模拟研究应考虑将实际熔焊工艺中的组合焊纳入研究范畴,并开展不同组合坡口下的多层多道焊接过程模拟,从而得到更为合理的焊接参数。

关键词：钛钢复合板焊接有限元模拟熔焊

Changes in terrestrial surface dry and wet conditions on the Loess Plateau(China) during the last half century

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Journal of Arid Land 2013年第1期5卷 15-24页

作者： YuBi YAO runyuan WANG JinHu YANG Ping YUE DengRong LU guo,Ju XIAO Yang WANG LinChun LIU China Meteorological Administration Key Laboratory of Arid Climate Change and Reducing Disaster Lanzhou 730020 China Gansu Province Key Laboratory of Arid Climate Change and Reducing Disaster Lanzhou 730020 China Lanzhou Institute of'Arid Meteorology China Meteorological Administration Lanzhou 730020 China Meteorological Bureau of Dingxi City Dingxi 743000 China Gansu Meteorological Information Center Lanzhou 730020 China New Technology Application Research and Development Centre of Ningxia University Yinchuan 750021 China

This paper, using a revised Penman-Monteith model, computed the terrestrial surface humidity index of the Loess Plateau （China） based on climatic factors of monthly mean temperature, maximum temperature, minimum temperature, relative humidity, precipitation, wind speed and sunshine duration observed on the plateau from 1961 to 2008. The temporal-spatial distribution, anomaly distribution and sub-regional temporal variations of the terrestrial surface dry and wet conditions were analyzed as well. The results showed a decreasing trend in the annual average surface humidity from the southeast to the northwest in the research anna. Over the period of 1961-2008, an aridification tendency appeared sharply in the central interior region of the Loess Plateau, and less sharply in the middle part of the region. The border region showed the weakest tendency ol; aridification. It is clear that aridification diffused in all directions from the interior region. The spatial anomaly distribution of the terrestrial surface dry and wet conditions on the Loess Plateau can be divided into three key areas： the southern, western and eastern regions. The terrestrial annual humidity index displayed a significantly descending trend and showed remarkable abrupt changes from wet to dry in the years 1967, 1977 and 1979. In the above mentioned three key areas for dry and wet conditions, the terrestrial annual humidity index exhibited a fluctuation period of 3-4 years, while in the southern region, a fluctuation period of 7-8 years existed at the same time.

关键词： dry and wet conditions spatial distribution temporal variation Penman-Monteith model Loess Plateau

High-throughput sequencing analysis of differential microRNA expression in the process of blocking the progression of chronic atrophic gastritis to gastric cancer by Xianglian Huazhuo formula(香连化浊方)

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Journal of Traditional Chinese Medicine 2024年第4期44卷 703-712页

作者： guo Yuxi LI Ze CHENG Nan JIA Xuemei WANG Jie MA Hongyu ZHAO runyuan LI Bolin XUE Yucong CAI Yanru YANG Qian Department of spleen and stomach diseases First Affiliated Hospital of Hebei University of Traditional Chinese MedicineShijiazhuang 050000China Department of Traditional Chinese Medicine Hebei General HospitalShijiazhuang 050051China Department of Gastroenterology the First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405China College of Integrative Medicine Hebei University of Chinese MedicineShijiazhuang 050011China

OBJECTIVE:To explore the mechanism of Xianglian Huazhuo formula(香连化浊方,XLHZ)blocking the development of chronic atrophic gastritis(CAG)to gastric cancer(GC)through bioinformatics analysis and in ***:Pathological morphology of gastric mucosa of rats were ***-throughput sequencing was used to analyze the miRNA expression profile of gastric *** miRanda,miRDB and miRWalk databases were used to predict the differential target *** Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment analysis were performed for differential target ***-time quantitative reverse transcription polymerase chain reaction(qRTPCR)was used to verify the differentially expressed miRNAs and target *** blot,EdU,wound healing and flow cytometry were used to observe the effect of XLHZ on epithelial-mesenchymal transition(EMT)markers,proliferation,migration,apoptosis and cell cycle of CAG cells in ***:A total of five differentially expressed miRNAs and four differential target genes were screened in this *** analysis showed that the target genes were enriched in regulation of neuron development,regulation of transcription factor activity and regulation of RNA *** pathways database differences in gene enrichment of target genes in the Wnt signaling pathway,Phospholipase D signaling pathway and mitogen-activated protein kinase signaling *** confirmed that miRNAs and its target genes were consistent with the screening *** vitro,our study revealed that XLHZ could increase the expression of Ecadherin,decrease the expression of transforming growth factorβ1,vimentin andβ-catenin,inhibite the proliferation and migration of CAG cells,cause cell cycle arrest at G0/G1 and G2/M phase,induce the apoptosis of CAG cells,and prevent the progression of CAG to ***:This study provided a new idea for the mechanism of blocking the progression of CAG to GC by XLHZ,which may be related to the expression

关键词： high-throughput nucleotide sequencing gastritis,atrophic stomach neoplasms microRNAs Xianglian Huazhuo formula

基于Sentinel-1 SAR数据的鄱阳湖水体提取方法对比研究

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水文 2024年第5期44卷 68-74页

作者：郭丽清况润元江西理工大学土木与测绘工程学院江西赣州341000

遥感水体提取技术在水体规划与监测中发挥着关键作用。针对Sentinel-1 SAR数据的水体提取,首先分析水体及其周围主要地物的后向散射特性,其次引入纹理、地形特征,对比分析阈值法、分类器法和面向对象法的水体提取效果,最后针对鄱阳湖的... 详细信息

遥感水体提取技术在水体规划与监测中发挥着关键作用。针对Sentinel-1 SAR数据的水体提取,首先分析水体及其周围主要地物的后向散射特性,其次引入纹理、地形特征,对比分析阈值法、分类器法和面向对象法的水体提取效果,最后针对鄱阳湖的典型水体环境,提出不同方法的应用策略,以便更有效地提取水体。研究表明:多特征融合提取可减少水体信息的混淆;RF算法对细小水体和边界的提取相对精细,总体精度高达97.8%;针对含有植被的浅水区,SDWI、Otsu等阈值法展现出更好的识别能力;水面上的船体对水体提取的完整性造成影响。研究探讨了Sentinel-1 SAR数据在鄱阳湖水体提取中的方法适用性,以期为鄱阳湖的水资源监测提供技术支持。

关键词： Sentinel-1 SAR 水体提取鄱阳湖阈值法分类器法

集装箱式锂离子电池储能系统消防安全早期预警方法

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储能科学与技术 2024年第5期13卷 1595-1602页

作者：李润源郭傅傲赵钢超上海勘测设计研究院有限公司上海200335

为了降低集装箱式锂离子电池储能系统火灾发生概率,提出消防安全早期预警方法。分析锂离子电池储能系统的生热过程,确定温度、电压等因素与储能系统消防安全的影响关系。采集电压、电流、温度、声信号等电池储能系统工作数据,检测表面... 详细信息

为了降低集装箱式锂离子电池储能系统火灾发生概率,提出消防安全早期预警方法。分析锂离子电池储能系统的生热过程,确定温度、电压等因素与储能系统消防安全的影响关系。采集电压、电流、温度、声信号等电池储能系统工作数据,检测表面健康程序,根据工作数据与表面健康状态的变化规律,综合考虑影响因素,预测储能系统的运行走势,设置电池储能系统消防安全早期预警等级,完成电池储能系统消防安全的早期预警。通过性能测试实验得出结论:与传统预警方法相比,优化设计方法的误警率和漏警率降低了0.90%以上,不同预警等级下,该方法仅出现1个预警错误,而且不同表面破损位置下的预警准确率达到了99.7%,具备有效性和可靠性。

关键词：集装箱式电池锂离子电池储能系统消防安全早期预警

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甲状腺癌术后声带麻痹患者的神经肌肉电刺激结合嗓音训练对嗓音功能的影响

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系统医学 2023年第11期8卷 138-142页

作者：李润元郭小梅张俊莲内蒙古医科大学附属肿瘤医院头颈外科内蒙古呼和浩特010010 呼和浩特赛道康复医疗中心内蒙古呼和浩特010000

目的探究甲状腺癌术后声带麻痹患者的神经肌肉电刺激结合嗓音训练对嗓音功能的影响。方法选取内蒙古医科大学附属肿瘤医院2017年3月-2023年3月收治的80例甲状腺癌术后声带麻痹患者作为研究对象,按照随机数表法分为对照组(40例)与观察... 详细信息

目的探究甲状腺癌术后声带麻痹患者的神经肌肉电刺激结合嗓音训练对嗓音功能的影响。方法选取内蒙古医科大学附属肿瘤医院2017年3月-2023年3月收治的80例甲状腺癌术后声带麻痹患者作为研究对象,按照随机数表法分为对照组(40例)与观察组(40例),对照组采用嗓音训练,观察组采用神经肌肉电刺激结合嗓音训练。比较两组患者噪音障碍指数量表(Voice Handicap Index, VHI)评分、嗓音嘶哑评估量表(Grade Roughness Breathiness Asthenia Strain, GRBAS)评分、声带活动与声门闭合情况、嗓音声学值。结果干预前,两组各项VHI评分比较,差异无统计学意义(P>0.05);干预后,观察组的生理、功能、情感评分[(8.33±1.75)分、(7.75±1.25)分、(10.21±1.56)分]均低于对照组(11.75±1.92)分、(9.85±1.10)分、(14.92±1.85)分,差异有统计学意义(t=8.326、7.977、12.310,P0.05);干预后,观察组GRBAS评分低于对照组,差异有统计学意义(t=9.805、11.497、16.087、8.645、10.010,P0.05);干预后,观察组声带活动与声门闭合评分高于对照组,差异有统计学意义(t=9.810,P0.05);干预后,观察组嗓音声学值优于对照组,差异有统计学意义(P<0.05)。结论在甲状腺癌术后声带麻痹患者治疗中实施神经肌肉电刺激结合嗓音训练干预能有效改善患者嗓音障碍,提升嗓音功能。

关键词：甲状腺癌声带麻痹神经肌肉电刺激嗓音训练

基于增强CT图像和Swin Transformer网络的食管癌T分期智能诊断模型的构建与评估

同方期刊数据库博看期刊评论

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陆军军医大学学报 2023年第16期45卷 1770-1778页

作者：王润媛陈星材吴蔚姚洁郭美马晋峰曹锡梅粘永健吴毅崔慧林山西医科大学基础医学院组织胚胎学教研室太原030001 陆军军医大学(第三军医大学)生物医学工程与影像医学系数字医学教研室重庆400038 陆军军医大学(第三军医大学)第一附属医院胸外科重庆400038 陆军军医大学(第三军医大学)第一附属医院心外科重庆400038 山西省肿瘤医院普外科太原030013

目的基于增强CT图像和Swin Transformer网络,拟构建食管癌T分期智能诊断模型。方法收集2018年1月至2022年4月在陆军军医大学第一附属医院和山西省肿瘤医院胸外科经病理证实为食管癌的150例患者的45000张术前增强CT图像。经过UperNet Swi... 详细信息

目的基于增强CT图像和Swin Transformer网络,拟构建食管癌T分期智能诊断模型。方法收集2018年1月至2022年4月在陆军军医大学第一附属医院和山西省肿瘤医院胸外科经病理证实为食管癌的150例患者的45000张术前增强CT图像。经过UperNet Swin网络自动分割和肿瘤体积的计算,使用ResNet50、Swin Transformer和VIT 3个网络进行食管癌T分期智能诊断模型的构建。使用精准率、召回率、F1-score、特异度以及阴性预测值(negative predictive value,NPV)等指标在150例内部数据集上评价模型性能,描绘混淆矩阵和ROC曲线。结果在3个食管癌T分期诊断的模型中,Swin Transformer模型结合肿瘤体积、病理信息等特征的分期诊断效果最好,T1~T4期的精准率分别为1.00、0.67、0.83、1.00,AUC为0.861,优于ResNet50和VIT分期诊断模型,它们的精准率分别为0.13、0.27、0.59、0.81和0.03、0.14、0.56、0.75,AUC分别是0.611和0.542。结论与ResNet50和VIT网络比较,Swin Transformer网络能够更精准进行食管癌智能T分期诊断。

关键词：深度学习食管癌增强CT Swin Transformer T分期诊断

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西北地区典型地物光谱数据库建设

干旱气象 2010年第3期28卷 363-366页

作者：张凯郭铌王润元王小平王胜中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室中国气象局干旱气候变化与减灾重点开放实验室甘肃兰州730020 中国科学院寒区旱区环境与工程研究所甘肃兰州730000

使用FieldSpecProFR2500便携式光谱仪,在甘肃典型区域,测定了一些特色农作物和典型植被的反射光谱。利用计算机编程技术,建立了西北地区典型地物光谱数据库。文章主要介绍了光谱数据的采集,数据库系统的建立过程以及数据库的应用和存在... 详细信息

使用FieldSpecProFR2500便携式光谱仪,在甘肃典型区域,测定了一些特色农作物和典型植被的反射光谱。利用计算机编程技术,建立了西北地区典型地物光谱数据库。文章主要介绍了光谱数据的采集,数据库系统的建立过程以及数据库的应用和存在的一些问题。

关键词：西北地区典型地物光谱数据库