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基于ACMD与K-SVD的滚动轴承微弱故障特征诊断

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轴承 2025年第03期 97-103页

作者：牛柱强张玮许书庆张成城胡鑫磊中核核电运行管理有限公司苏州微著设备诊断技术有限公司

针对强背景噪声下滚动轴承故障特征难以提取的问题，提出了一种基于自适应啁啾模态分解（ACMD）和K-奇异值分解（K-SVD）的故障特征提取方法。采用ACMD自适应地将原始信号分解为不同的本征模态分量，提出一种新的衡量信号故障特征的信... 详细信息

针对强背景噪声下滚动轴承故障特征难以提取的问题，提出了一种基于自适应啁啾模态分解（ACMD）和K-奇异值分解（K-SVD）的故障特征提取方法。采用ACMD自适应地将原始信号分解为不同的本征模态分量，提出一种新的衡量信号故障特征的信号特征因子筛选包含故障信息丰富的模态分量作为训练信号，利用KSVD字典学习针对训练信号训练字典库，结合正交匹配追踪算法对原始信号进行重构得到稀疏信号，通过进一步的包络谱分析获取故障特征频率并作出故障诊断。仿真信号和试验研究表明，基于ACMD与K-SVD的方法能够有效提取强背景噪声下的滚动轴承故障特征，确定轴承故障类型。

关键词：滚动轴承故障诊断特征提取信号处理奇异值分解

Evidence of active oviposition avoidance to systemically applied imidacloprid in the Colorado potato beetle

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Insect Science 2024年第5期31卷 1543-1554页

作者： Alitha Edison Anja Michelbach Dominique Sowade Hanna Kertzel Luise Schmidt Martin Schafer Maximilian Hackhausen Raif Nauen Pablo Duchen shuqing xu Institute for Evolution and Biodiversity University of MunsterHufferstraBe 1Munster48149Germany Institute of Organismic and Molecular Evolution(iomE) University of MainzHanns-Dieter-Husch-Weg 15Mainz55128Germany Current address:Department of Cell and Tissue Dynamics MunsterGermany Crop Science Division Research and Development DepartmentBayer AGMonheimGermany

Agricultural pests can develop behavioral resistance to insecticides by choosing to feed or oviposit on insecticide-free *** young larvae have relatively low mobility,oviposition preferences from female adults may play a critical role in shaping the evolu-tionary trajectory of pest *** oviposition avoidance of insecticide-treated hosts was found in different agriculture pests,it remains unclear whether female adults actively choose to occupy insecticide-free *** address this question,we investigated feeding and oviposition preferences between imidacloprid-treated and imidacloprid-free plants in the Colorado potato beetle,Leptinotarsa decemlineata Say,a major potato *** performed behavioral choice assays on two strains that differed in both fecundity and insecticide *** found that one strain preferred to feed on the insecticide-free plants and that this preference is not ***,the other strain chose plants for feeding and oviposition *** analyses of the moving patterns of the beetles suggested that the oviposition preference in the first strain is likely due to active learning.

关键词： Colorado potato beetle host preferences imidacloprid insecticide resis-tance oviposition pesticide avoidance

NaMYB8 regulates distinct,optimally distributed herbivore defense traits

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Journal of Integrative Plant Biology 2017年第12期59卷 844-850页

作者： Martin Schafer Christoph Brutting shuqing xu Zhihao Ling Anke Steppuhn lan T.Baldwin Meredith C.Schuman Department of Molecular Ecology Max-Planck-Institute for Chemical EcologyHans-Knoll-Str.807745 JenaGermany Molecular Ecology Dahlem Centre of Plant Sciences(DCPS)Institute of BiologyFreie Universitat(FU)BerlinHaderslebener Str.912163 BerlinGermany

When herbivores attack, plants specifically reconfigure their metabolism. Herbivory on the wild tobacco Nicotiana attenuata strongly induces the R2R3 MYB transcriptional activator MYB8, which was reported to specifically regulate the accumulation of phenolamides （PAs）. We discovered that transcriptional regulation of trypsin protease inhibitors （TPIs） and a threonine deaminase （TD） also depend on MYB8 expression. Induced distributions of PAs, TD and TPIs all meet predictions of optimal defense theory： their leaf concentrations increase with the fitness value and the probability of attack of the tissue. Therefore, we suggest that these defensive compounds have evolved to be co-regulated by MYB8.

关键词： Figure TPI NaMYB8 regulates distinct,optimally distributed herbivore defense traits

Invest in Guizhou,Invest in the Future

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International Understanding 2001年第2期 24-27页

作者： Guo shuqing Translated by Dai xu

In order to let our foreign friends know more about China’s western development program, the Editorial Department has requested local government leaders to write special articles on general development plans of western provinces. We will publish the articles in succession to serve the demand of foreign friends. Here we’d also like to express our sincere thanks to the leaders who have echoed us with their contributions. The following article written by Mr. Guo shuqing, Vice Governor of Guizhou Province is about the investment environment of the province and published with the author’s consent.

关键词： than very

Effect of Sulphur in Rainfall, Irrigation Waterand Perco colating Water on Soil Sulphur in Jiangxi Province

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Pedosphere 2000年第2期10卷 177-182页

作者： LIU CHONGQUN CAO shuqing and xu JUNXIANG(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Narolng 210008 China) Institute of Soil Science the Chinese Academy of Sciences P.O. Box 821 Nanjing 210008 China

Ten rainfall and irrigation water-collecting posts were set up in different ecotype districts of JiangxiProvince, China, to quarterly measure S content in rainfall and irrigation water. A rainwater chemicalcomposition- collecting device was used to collect the sulphur in rainfall land the amount of sulphur adsorbedon the resin column in the device was determined. The soil percolating water was gathered using 6 lysimeters,built up according to the profile sequence of the red soil derived from red sandstone and the red soil derivedfrom Quaternary red clay, separately. On the lysimeters peanuts, soybean and radish were grown in *** treatments were designed: without S addition and with S addition at a rate of 14 kg S ha-1. The SO24contents in rainfall, irrigation water and soil percolating water were determined by the *** results in 1997 showed that the average annual S content in rainwater was 28.13 kg S ha-1, theaverage S content in irrigation water was 1.7 mg S L-1 , and the average content of in soil percolationwater was 2.30 kg S ha-1 year-1 and 4.70 kg S ha-l year-1 in treatments without and with sulphurapplication, respectively. In Jiangxi Province, apart from the losses by runoff and leaching, the sulphur inrainfall available to crops is 7.3 kg S ha-1 year-1 and additional S application is required. When rice isgrown , however, irrigation water can supply 6.9 kg S ha-1, which, along with the sulphur in rainfall, canalmost meet the S requirement of one cropping of rice.

关键词： irrigation water Jiangxi Province rainfall soil percolation water sulphur

Relationship between chronic diarrhea with normal colonoscopy findings and terminal ileum lesions

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Chinese Medical Journal 2014年第16期127卷 2915-2917页

作者： LI Hongling WANG Changcheng LIU shuqing xu Dongsheng ZHANG Ju CHEN hongmei Department of Gastroenterology the Affiliated Huai'an Hospital ofXuzhou Medical College Huai'an Jiangsu Provinc 223002 China

Background The causes and mechanisms of chronic diarrhea are *** study aimed to explore the relationship between chronic diarrhea with normal colonoscopy findings and terminal ileum *** All cases were collected from January 2009 to June *** 40 patients in the patient group had chronic diarrhea with normal colonoscopy *** who had hyperthyroidism,diabetes,chronic pancreatitis,cirrhosis,atrophic gastritis,short bowel syndrome and connective tissue diseases had been *** control group contained 40 healthy individuals without *** of the terminal ileum was applied in both groups,with the endoscope inserted into terminal ileum for more than 20 *** patients diagnosed of chronic diarrhea with terminal ileum lesions were treated with metronidazole and probiotics for 10-14 *** Before treatment there were significant differences in endoscopy findings of the terminal ileum between the two groups （P 〈0.05）.In the patient group,endoscopy showed congestion,edema,erosion and ulcers in 29 cases,hyperplasia and enlargement of lymphoid follicles in 10 cases with a maximal diameter of 7-8 mm,and 1 case showed normal endoscopy *** treatment,35 patients recovered from diarrhea,and terminal ileum lesions disappeared in 30 cases as determined by *** the control group,endoscopy showed scattered hyperplasia of lymphoid follicles in 5 cases,and the follicles were small with the maximal diameter being 3 *** was no hyperemia,edema,erosion or *** Chronic diarrhea patients with normal colonoscopy findings may have lesions in the terminal ileum that can be detected by endoscopy; including hyperemia,erosion,ulcers and lymphoid follicle *** effect is good with metronidazole and probiotics.

关键词： chronic diarrhea normal colonoscopy terminal ileal lesion

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职业安全健康教育研究与实践

工业安全与环保 2017年第6期43卷 39-41页

作者：许曙青江苏联合职业技术学院南京工程分院

本文基于职业院校开展职业安全健康教育的实证研究,突出"责任关怀",通过科研引领、校企合作研发教材、建设精品课程资源、强化教学团队和安全实训基地建设、完善安全机制等途径,推进了职业安全健康教育纳入课堂,融入专业实践活动,衔接... 详细信息

本文基于职业院校开展职业安全健康教育的实证研究,突出"责任关怀",通过科研引领、校企合作研发教材、建设精品课程资源、强化教学团队和安全实训基地建设、完善安全机制等途径,推进了职业安全健康教育纳入课堂,融入专业实践活动,衔接岗位实践,提升职业院校学生职业安全健康素养,提升服务企业的能力,促进了社会和谐稳定发展。

关键词：职业安全健康教育工作情境实践导向

职业院校学生职业安全健康应急救护体系建立与实施

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工业安全与环保 2017年第4期43卷 40-43页

作者：许曙青江苏省南京工程高等职业学校南京211135 江苏联合职业技术学院南京工程分院南京211135

为提高从业者的职业安全健康意识,提升应急救护技能,降低意外造成的危害,在分析职业安全健康应急救护现状的基础上,探讨职业安全健康应急救护的内涵及意义,通过职业安全健康应急救护内容体系、组织体系、评价体系的构建,促进职业安全健... 详细信息

为提高从业者的职业安全健康意识,提升应急救护技能,降低意外造成的危害,在分析职业安全健康应急救护现状的基础上,探讨职业安全健康应急救护的内涵及意义,通过职业安全健康应急救护内容体系、组织体系、评价体系的构建,促进职业安全健康应急救护体系的完善,同时通过职业安全健康应急救护的实施途径与方法的探索,以期为从业者应急救护能力的提升搭建平台,提高自救与互救能力,促进安全素养的提升。

关键词：职业安全健康应急救护体系构建途径与方法

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基于加权投票的主动密度峰值数据聚类算法

计算机应用与软件 2023年第10期40卷 297-306页

作者：张苏颖许曙青江苏联合职业技术学院南京工程分院江苏南京210035 南京理工大学计算机学院江苏南京210000

针对传统方法缺乏对查询标准的全面考虑,并且反复运行半监督聚类来更新标签等问题,提出一种基于加权投票一致性的主动密度峰值数据聚类算法。提出一个同时考虑代表性和信息性的主动密度峰聚类算法,选取有代表性的实例捕捉数据模式,查询... 详细信息

针对传统方法缺乏对查询标准的全面考虑,并且反复运行半监督聚类来更新标签等问题,提出一种基于加权投票一致性的主动密度峰值数据聚类算法。提出一个同时考虑代表性和信息性的主动密度峰聚类算法,选取有代表性的实例捕捉数据模式,查询信息实例以减少聚类结果的不确定性。设计快速更新策略,有效地更新了标签。提出一个结合局部和全局不确定性的主动聚类集成框架,并引入加权投票一致性方法对聚类结果进行优化整合。在数据集上的实验结果证明了该方法能有效解决传统方法问题,并具有良好的聚类性能。

关键词：半监督主动峰值聚类加权投票查询选择