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Journal of Integrative Agriculture 2024年第6期23卷 1979-1993页

作者： ping liao Ting Zeng Mengyang Huangfu Cairong Zheng Jiequn Ren Changyong Zhou Yan Zhou Integrative Science Center of Germplasm Creation in Western China(CHONGQING)Science City Citrus Research InstituteSouthwest UniversityChongqing 400712China National Citrus Engineering Research Center Citrus Research InstituteSouthwest UniversityChongqing 400712China Chongqing Three Gorges Academy of Agricultural Science Chongqing Three Gorges UniversityChongqing 404020China

Citrus yellow vein clearing virus(CYVCV)is a new citrus virus that has become an important factor restricting the development of China’s citrus industry,and the CYVCV coat protein(CP)is associated with viral *** this study,the Eureka lemon zinc finger protein(ZFP)ClDOF3.4 was shown to interact with CYVCV CP in vivo and in *** expression of ClDOF3.4 in Eureka lemon induced the expression of salicylic acid(SA)-related and hypersensitive response marker genes,and triggered a reactive oxygen species burst,ion leakage necrosis,and the accumulation of free ***,the CYVCV titer in ClDOF3.4 transgenic Eureka lemon plants was approximately 69.4%that in control plants 6 mon after inoculation,with only mild leaf chlorotic spots observed in those transgenic *** together,the results indicate that ClDOF3.4 not only interacts with CP but also induces an immune response in Eureka lemon by inducing the SA *** is the first report that ZFP is involved in the immune response of a citrus viral disease,which provides a basis for further study of the molecular mechanism of CYVCV infection.

关键词： citrus yellow vein clearing virus coat protein ClDOF3.4 plant immune response

Cinnamaldehyde targets SarA to enhance β-lactam antibiotic activity against methicillin-resistant Staphylococcus aureus

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mLife 2024年第2期3卷 291-306页

作者： Jianguo Li Tingyin Lu Yuefei Chu Yuejun Zhang Jing Zhang Wenzhen Fu Jian Sun Yahong Liu Xiao-ping liao Yu-Feng Zhou State Key Laboratory for Animal Disease Control and Prevention South China Agricultural UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation South China Agricultural UniversityGuangzhouChina Yantai Fushan Center for Animal Disease Control and Prevention YantaiChina

Methicillin-resistant Staphylococcus aureus(MRSA)is a current global public health problem due to its increasing resistance to the most recent antibiotic *** critical approach is to develop ways to revitalize existing ***,we show that the phytogenic compound cinnamaldehyde(CIN)and β-lactam antibiotic combinations can functionally synergize and resensitize clinical MRSA isolates to β-lactam therapy and inhibit MRSA biofilm *** studies indicated that the CIN potentiation effect on β-lactams was primarily the result of inhibition of the mecA expression by targeting the staphylococcal accessory regulator *** alone or in combination with β-lactams decreased sarA gene expression and increased SarA protein phosphorylation that impaired SarA binding to the mecA promoter element and downregulated virulence genes such as those encoding biofilm,α-hemolysin,and *** of SarA-mecA binding thus interfered with PBP2a biosynthesis and this decreased MRSA resistance to β-***,CIN fully restored the anti-MRSA activities of β-lactam antibiotics in vivo in murine models of bacteremia and biofilm ***,our results indicated that CIN acts as a β-lactam adjuvant and can be applied as an alternative therapy to combat multidrug-resistant MRSA infections.

关键词： cinnamaldehyde MRSA SarA β-lactamresistance

社会计算驱动的巩固拓展脱贫攻坚成果长效机制研究

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福建金融管理干部学院学报 2024年第2期 101-109页

作者：廖萍萍史晓丹中共福建省委党校经济学教研部福建福州350108

在信息化与数字化基础上,将社会计算这一研究与治理社会问题的新方法应用于构建巩固拓展脱贫攻坚成果长效机制上,凸显利用大数据和人工智能算法解决多主体相关、多因素叠加的、复杂的相对贫困问题的优势,有机整合巩固与拓展机制,在巩固... 详细信息

在信息化与数字化基础上,将社会计算这一研究与治理社会问题的新方法应用于构建巩固拓展脱贫攻坚成果长效机制上,凸显利用大数据和人工智能算法解决多主体相关、多因素叠加的、复杂的相对贫困问题的优势,有机整合巩固与拓展机制,在巩固中拓展、以拓展促巩固,促进帮扶对象精准化、帮扶措施多元化、脱贫动力内生化、扶贫决策动态化自动化、多方参与联动及智能化协调,为巩固拓展脱贫攻坚成果长效机制的研究和实践提供一种新思路。

关键词：脱贫攻坚信息化数字化社会计算长效机制

基于灵敏度分析的动车组车体结构模态提升研究

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城市轨道交通研究 2024年第5期27卷 45-50,56页

作者：杜彦品廖平赵景忠徐志鹏中车南京浦镇车辆有限公司南京210031

[目的]为全面了解车体零件尺寸参数对车体模态的影响,对动车组车体模态灵敏度进行分析,以提升车体主要振动频率。[方法]根据灵敏度计算结果,制定了8种单变量厚度提升方案,进行车体结构主要模态对比分析;在此基础上,对主要振动模态影响... 详细信息

[目的]为全面了解车体零件尺寸参数对车体模态的影响,对动车组车体模态灵敏度进行分析,以提升车体主要振动频率。[方法]根据灵敏度计算结果,制定了8种单变量厚度提升方案,进行车体结构主要模态对比分析;在此基础上,对主要振动模态影响最大的零件进行两两组合,在质量增加不大的前提下,制定了3种提升方案来研究多变量厚度变化对车体主要振动模态的影响。[结果及结论]侧顶板、圆顶板、侧墙板、侧墙梁柱、车顶弯梁、波纹地板和底架边梁的厚度对车体主要振动模态的灵敏度较高;增加以上单变量影响因素的厚度和多变量影响因素的厚度,车体结构主要振动模态频率相对于原结构均有一定提升;与单变量厚度影响因素方案相比,多变量厚度提升方案的各振动模态频率均有所上升,但变化幅值较小,大大低于2个单变量厚度影响因素单独对车体模态影响的叠加。

关键词：动车组车体结构灵敏度模态

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Paper evolution graph: multi-view structural retrieval for academic literature

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Frontiers of Information Technology & Electronic Engineering 2019年第2期20卷 187-205页

作者： Dan-ping liao Yun-tao QIAN College of Computer Science and Technology Zhejiang University

Academic literature retrieval concerns about the selection of papers that are most likely to match a user's information needs. Most of the retrieval systems are limited to list-output models, in which the retrieval results are isolated from each other. In this paper, we aim to uncover the relationships between the retrieval results and propose a method to build structural retrieval results for academic literature, which we call a paper evolution graph(PEG).The PEG describes the evolution of diverse aspects of input queries through several evolution chains of papers. By using the author, citation, and content information, PEGs can uncover various underlying relationships among the papers and present the evolution of articles from multiple viewpoints. Our system supports three types of input queries: keyword query, single-paper query, and two-paper query. The construction of a PEG consists mainly of three steps. First, the papers are soft-clustered into communities via metagraph factorization, during which the topic distribution of each paper is obtained. Second, topically cohesive evolution chains are extracted from the communities that are relevant to the query. Each chain focuses on one aspect of the query. Finally, the extracted chains are combined to generate a PEG, which fully covers all the topics of the query. Experimental results on a real-world dataset demonstrate that the proposed method can construct meaningful PEGs.

关键词： Paper evolution graph Academic literature retrieval Metagraph factorization Topic coherence

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光学相干层析成像在生物医学中的研究进展

激光与光电子学进展 2024年第12期61卷 51-60页

作者：颜佳涛唐云袁锐邹鹏辉廖萍李菁锋彭旭翔湖南科技大学物理与电子科学学院智能传感器与新型传感材料湖南省重点实验室湖南湘潭411201 谢菲尔德大学电子与电气工程系英国谢菲尔德S102TN

光学相干层析成像(OCT)是近年来发展迅速的一种无损低相干生物医学成像技术。由于能够检测生物组织的微观结构信息,其为生物医学基础和临床研究带来了极大的便利。OCT在眼科中从最初黄斑结构的探索到评估视网膜和脉络膜血管系统,实现了... 详细信息

光学相干层析成像(OCT)是近年来发展迅速的一种无损低相干生物医学成像技术。由于能够检测生物组织的微观结构信息,其为生物医学基础和临床研究带来了极大的便利。OCT在眼科中从最初黄斑结构的探索到评估视网膜和脉络膜血管系统,实现了动态结构与静态组织的对比。此外基于光源突破性的发展,OCT系统可能成为皮肤科、胃肠疾病和心血管疾病等多个临床领域的标准检查方法。本文回顾OCT的发展历程,并对各个类别的OCT系统进行介绍,对其成像原理、性能、优缺点等进行描述和对比,最后总结和展望该技术在生物医学的应用。

关键词：光学相干层析成像生物医学光学无损检测三维重建生物组织

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悬挂式单轨车车体结构轻量化措施探讨

轨道交通装备与技术 2024年第1期32卷 41-45页

作者：杜彦品廖平邓锐中车南京浦镇车辆有限公司江苏南京210031

文章通过调研国内外悬挂式单轨车车体的轻量化技术及其发展现状,结合某单轨车的车体结构设计,探讨车体轻量化措施。针对悬挂式单轨车车体轻量化问题,分别从铝合金型材设计、结构优化和新型轻量化材料运用3个方面,详细阐述了悬挂式单轨... 详细信息

文章通过调研国内外悬挂式单轨车车体的轻量化技术及其发展现状,结合某单轨车的车体结构设计,探讨车体轻量化措施。针对悬挂式单轨车车体轻量化问题,分别从铝合金型材设计、结构优化和新型轻量化材料运用3个方面,详细阐述了悬挂式单轨车在车顶、侧墙、底架和端墙等车体主要部件采取的轻量化方案,最后总结得出车体轻量化的有效措施。研究成果对今后悬挂式单轨车体轻量化设计具有一定的工程运用指导意义。

关键词：悬挂式单轨车体轻量化车顶侧墙端墙

Least-Squares Solution with the Minimum-Norm for the Matrix Equation A^TXB+B^TX^TA = D and Its Applications

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Acta Mathematicae Applicatae Sinica 2007年第2期23卷 269-280页

作者： An-ping liao Yuan Lei Xi-yan Hu Coilege of Mathematics and Econometrics Hunan University Changsha 410082 China Department of Mathematics and Information Sciences Changsha University Changsha 410003 China

An efficient method based on the projection theorem, the generalized singular value decomposition and the canonical correlation decomposition is presented to find the least-squares solution with the minimum-norm for the matrix equation A^TXB＋B^TX^TA = D. Analytical solution to the matrix equation is also derived. Furthermore, we apply this result to determine the least-squares symmetric and sub-antisymmetric solution of the matrix equation C^TXC = D with minimum-norm. Finally, some numerical results are reported to support the theories established in this paper.

关键词： Matrix equation minimum-norm solution generalized singular value decomposition canonical correlation decomposition

Outlier Detection and Forecasting for Bridge Health Monitoring Based on Time Series Intervention Analysis

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Structural Durability & Health Monitoring 2022年第4期16卷 323-341页

作者： Bing Qu ping liao Yaolong Huang College of Civil Engineering Putian UniversityPutian351100China

The method of time series analysis,applied by establishing appropriate mathematical models for bridge health monitoring data and making forecasts of structural future behavior,stands out as a novel and viable research direction for bridge state ***,outliers inevitably exist in the monitoring data due to various interventions,which reduce the precision of model fitting and affect the forecasting ***,the identification of outliers is crucial for the accurate interpretation of the monitoring *** this study,a time series model combined with outlier information for bridge health monitoring is established using intervention analysis theory,and the forecasting of the structural responses is carried *** are three techniques that we focus on:(1)the modeling of seasonal autoregressive integrated moving average(SARIMA)model;(2)the methodology for outlier identification and amendment under the circumstances that the occurrence time and type of outliers are known and unknown;(3)forecasting of the model with outlier *** method was tested with a case study using monitoring data on a real *** establishment of the original SARIMA model without considering outliers is first discussed,including the stationarity,order determination,parameter estimation and diagnostic checking of the *** the time-by-time iterative procedure for outlier detection,which is implemented by appropriate test statistics of the residuals,is *** SARIMA-outlier model is subsequently ***,a comparative analysis of the forecasting performance between the original model and SARIMA-outlier model is carried *** results demonstrate that proper time series models are effective in mining the characteristic law of bridge monitoring *** the influence of outliers is taken into account,the fitted precision of the model is significantly improved and the accuracy and the reliability of the forecast are strengthened.

关键词： Structural health monitoring time series analysis outlier detection bridge state assessment bridge sensor data stress forecasting

ON THE LEAST SQUARES PROBLEM OF A MATRIXEQUATION

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Journal of Computational Mathematics 1999年第6期17卷 589-594页

作者： An-ping liao(College of Science, Hunan Normal University, Changsha 410081, China) 湖南师范大学理学院湖南长沙 410081

Least squares solution of F=PG with respect to positive semidefinite symmetric P is considered,a new necessary and sufficient condition for solvablity is given,and the expression of solution is derived in the some special cases. Based on the expression, the least spuares solution of an inverse eigenvalue problem for positive semidefinite symmetric matrices is also given.

关键词： least squares solution matrix equation inverse eigenvalue problem positive semidefinite symmetric matrix