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Effect of dissolved oxygen on electrochemical corrosion behavior of 2205 duplex stainless steel in hot concentrated seawater

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Journal of Materials Science & Technology 2021年第7期66卷 177-185页

作者： hongtao zeng Yong Yang Minhang zeng Moucheng Li Institute of Materials School of Materials Science and EngineeringShanghai UniversityShanghai 200072China

The corrosion behavior of 2205 duplex stainless steel was investigated in hot concentrated seawater with different dissolved oxygen(DO) concentration by electrochemical measurement techniques and surface analysis methods. DO obviously enhances the cathodic reaction process, the formation of passive film and polarization resistance. With increasing the DO concentration from 0.34 to 3.06 mg L^(-1), the relative contents of Fe_(2)O_(3) and Cr_(2)O_(3) and the Cr-enrichment gradually enlarge in the passive film. The higher DO concentrations result in lower defect densities and thicker of space charge layers in the passive films,whichmayeffectively inhibit the intrusion of aggressive chloride ions. The increment inDOconcentration clearly increases the pitting potential, but decreases the repassivation potential. It may weaken both the occurrence and repassviation tendencies of stable pitting corrosion.

关键词： Dissolved oxygen Pitting corrosion 2205 duplex stainless steel Hot concentrated seawater Passivation

Ti-Al反应扩散机制及动力学研究进展(下)

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稀有金属材料与工程 2024年第6期53卷 2067-2082页

作者：张建宇陈亚宇杨国强吕征刘宏基马鹏辉曾洪涛李河宗河北工程大学机械与装备工程学院河北邯郸056038 河北工程大学河北省智能工业装备技术重点实验室河北邯郸056038 河北工程大学材料科学与工程学院河北邯郸056038

通过Ti和Al制备的Ti-Al系金属间化合物及复合材料由于具有优异的物理、化学和力学性能,在航空航天、汽车以及其它领域具有良好的应用前景。这些材料包括TiAl_(3)、γ-TiAl和α_(2)-Ti_(3)Al等金属间化合物,以及Ti/Al、Ti/α_(2)-Ti_(3)A... 详细信息

通过Ti和Al制备的Ti-Al系金属间化合物及复合材料由于具有优异的物理、化学和力学性能,在航空航天、汽车以及其它领域具有良好的应用前景。这些材料包括TiAl_(3)、γ-TiAl和α_(2)-Ti_(3)Al等金属间化合物,以及Ti/Al、Ti/α_(2)-Ti_(3)Al、Ti/γ-TiAl、Ti/TiAl_(3)、Ti/TiAl_(3)/Al和Al/TiAl_(3)等金属-金属或金属-金属间化合物复合材料。在上述材料的制备过程中,会涉及到各种Ti-Al反应扩散过程。因此,对Ti-Al反应扩散机理及动力学的深入理解,有助于合理高效地制备Ti-Al系金属间化合物及复合材料。目前对Ti-Al反应扩散机理及动力学的研究非常广泛,但很多结论仍存在争议。本文(下)部分系统综述了Ti-Al反应扩散动力学的研究现状,并对其未来的研究方向进行了展望。

关键词： Ti-Al 反应扩散动力学固相反应固-液反应

氟碳型表面活性剂浓度对离子钯活化液活性的影响

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河北工业大学学报 2024年第4期53卷 67-75页

作者：曾洪涛刘艺哲王泽娟王艳辉赵雷杰陈兵华南理工大学化学与化工学院广东广州510641 河北工程大学机械与装备工程学院河北邯郸056038 台山市精诚达电路有限公司广东台山529223

采用离子钯活化液进行绝缘基材化学镀铜前的表面活化,探究不同浓度的氟碳型表面活性剂对离子钯活化液活化效果的影响。利用激光共聚焦显微镜(CLSM)分析化学镀铜后基材表面粗糙度,采用扫描电子显微镜(SEM)表征化学镀铜后的形态和结构,结... 详细信息

采用离子钯活化液进行绝缘基材化学镀铜前的表面活化,探究不同浓度的氟碳型表面活性剂对离子钯活化液活化效果的影响。利用激光共聚焦显微镜(CLSM)分析化学镀铜后基材表面粗糙度,采用扫描电子显微镜(SEM)表征化学镀铜后的形态和结构,结合X射线能谱仪(EDS)检测样品表面元素含量,对化学镀铜后的基材表面进行背光测试及电化学分析。结果表明:氟碳型表面活性剂存在临界浓度0.01 g/L,氟碳型表面活性剂浓度由0.001 g/L增加至0.01 g/L时,离子钯活化液活化效果随表面活性剂浓度的增加而提高,但氟碳型表面活性剂浓度由0.01 g/L继续增加至1 g/L时,离子钯活化液的活性效果反而降低,当氟碳型表面活性剂的浓度为临界浓度0.01 g/L时,离子钯活化液的活性最高,化学镀铜的效果最好。

关键词：离子钯活化液化学镀铜表面活性剂活化效果电化学分析

A Perspective on Rhythmic Gymnastics Performance Analysis Powered by Intelligent Fabric

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Advanced Fiber Materials 2023年第1期5卷 1-11页

作者： Dan Zhu Zhenyu Zhang Min Chen Pan Li Yuanzhuo Xiang Jingyu Ouyang Zhiheng Huang Xiaojuan Liu Fuhong Wang Maiping Yang hongtao zeng Ping Hong Lei Wei Chong Hou Guangming Tao School of Martial Arts and Performance Capital University of Physical Education and SportsBeijing 100191China Wuhan National Laboratory for Optoelectronics and School of Computer Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Sports Medicine and Mealth Chengdu Sport UniversityChengdu 610000China School of Physical Education Chaohu UniversityHefei 238000China School of Physical Education Huazhong University of Science and TechnologyWuhan 430074China Beijing Sport University Beijing 100091China School of Electronic and Electrical Engineering and School of Materials Science and Engineering Nanyang University of TechnologySingapore 639798Singapore School of Optics and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China

Performance analysis is an important tool for gymnasts and coaches to assess the techniques,strengths,and weaknesses of rhythmic gymnasts during *** have an accurate insight about the motion and postures can help the optimization of their performance and offer personalized ***,there are three primary limitations of traditional perfor-mance analysis systems applied in rhythmic gymnastics:(1)Inability to quantify anthropometric data in an imperceptible way,(2)labor-intensive nature of data labeling and analysis,and(3)lack of monitoring of all-round and multi-dimensional perspectives of the ***,an advanced performance analysis system for rhythmic gymnastics is proposed in this paper,powered by intelligent *** system uses intelligent fabric to detect the physiological and anthropometric data of the *** a variety of data are collected,the analysis component is implemented by artificial intelligence techniques resulting in behavior recognition,decision-making,and other functions assisting performance improvement.A feasible solution to implementing the analysis component is the use of the hyperdimensional computing *** addition,four typical applications are presented to improve training *** by intelligent fabric,the proposed advanced performance analysis system exhibits the potential to promote innovative technologies for improving training and competi-tive performance,prolonging athletic careers,as well as reducing sports injuries.

关键词： Rhythmic gymnastics Intelligent fabric Augmented reality Artificial intelligence

Genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize

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Journal of Genetics and Genomics 2024年第3期51卷 326-337页

作者： Lei Gao Haifang Jiang Minze Li Danfeng Wang hongtao Xiang Rong zeng Limei Chen Xiaoyan Zhang Jianru Zuo Shuhua Yang Yiting Shi State Key Laboratory of Plant Environmental Resilience College of Biological SciencesFrontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State Key Laboratory of Wheat&Maize Crop Science College of Life SciencesHenan Agricultural UniversityZhengzhouHenan 450002China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Suihua Branch of Heilongjiang Academy of Agricultural Machinery Sciences SuihuaHeilongjiang 152052China

Lipid remodeling is crucial for cold tolerance in ***,the precise alternations of lipidomics during cold responses remain elusive,especially in maize(Zea mays L.).In addition,the key genes responsible for cold tolerance in maize lipid metabolism have not been ***,we integrate lipidomic,transcriptomic,and genetic analysis to determine the profile of lipid remodeling caused by cold *** find that the homeostasis of cellular lipid metabolism is essential for maintaining cold tolerance of ***,we detect 210 lipid species belonging to 13 major classes,covering phospholipids,glycerides,glycolipids,and free fatty *** lipid metabolites undergo specific and selective alterations in response to cold stress,especially mono-/di-unsaturated lysophosphatidic acid,lysophosphatidylcholine,phosphatidylcholine,and phosphatidylinositol,as well as polyunsaturated phosphatidic acid,monogalactosyldiacylglycerol,diacylglycerol,and *** addition,we identify a subset of key enzymes,including ketoacyl-acyl-carrier protein synthase II(KAS II),acyl-carrier protein 2(ACP2),male sterility33(Ms33),and stearoyl-acyl-carrier protein desaturase 2(SAD2)involved in glycerolipid biosynthetic pathways are positive regulators of maize cold *** results reveal a comprehensive lipidomic profile during the cold response of maize and provide genetic resources for enhancing cold tolerance in crops.

关键词： Maize Cold stress Lipid metabolism Transcriptome Lipidomic

基于Community Intelligence的水电厂状态检修决策支持系统

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水力发电学报 2006年第3期25卷 130-135页

作者：曾洪涛李朝晖华中科技大学水电与数字化工程学院武汉430074

水电厂正在逐步从计划检修向状态检修过渡,如何实现维修人员、专家和计算机之间的协调是非常重要的。本文总结分布式智能技术发展提出了Community Intelligence(CI)的概念,并基于CI的元模型设计了水电厂状态检修决策支持系统,探讨了实... 详细信息

水电厂正在逐步从计划检修向状态检修过渡,如何实现维修人员、专家和计算机之间的协调是非常重要的。本文总结分布式智能技术发展提出了Community Intelligence(CI)的概念,并基于CI的元模型设计了水电厂状态检修决策支持系统,探讨了实现分布式协同诊断、维护、决策的原理和方法,详细介绍了系统的框架和功能以及软硬件实现方法。该系统已经在葛洲坝电厂投入运行,结果良好。

关键词：状态检修决策支持系统 CSCW CI-Agent

基于知识网格的电厂协同维护决策支持系统探讨

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电力系统自动化 2007年第4期31卷 85-90页

作者：郭江曾洪涛肖志怀武汉大学动力与机械学院湖北省武汉市430072

实现广域范围内的协同维护决策是维护领域的前沿研究课题之一。为了解决电厂维护领域中知识资源的共享和利用问题,在分析目前维护网络现状和需求的基础上,以实现群体协同维护决策为目标,建立了基于知识网格的多种知识、多类方法、多组... 详细信息

实现广域范围内的协同维护决策是维护领域的前沿研究课题之一。为了解决电厂维护领域中知识资源的共享和利用问题,在分析目前维护网络现状和需求的基础上,以实现群体协同维护决策为目标,建立了基于知识网格的多种知识、多类方法、多组信息和多方面资源支持的协同维护决策的体系结构,并对知识建模方法进行了研究。资源节点之间相互开放,共享资源信息,由知识网格平台统一管理和调度,相互协调,为不同电厂、制造商及研究单位提供所需的服务信息,有利于提高维护决策支持系统的诊断水平和处理能力、降低诊断和维修成本、提高诊断处理的效率,为逐步实现状态检修提供了一种切实可行的方法。

关键词：动力工程电厂状态检修知识网格维护决策支持系统群体智能

基于B/C/S的机组远程协作诊断决策支持系统

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华中科技大学学报（自然科学版） 2005年第6期33卷 70-72页

作者：郭江罗云赵向平曾洪涛华中科技大学水电与数字化工程学院湖北武汉430074 华中电网有限公司湖北武汉430077

分析了状态检修过程中远程协作诊断决策技术研究的必要性、意义和效益,提出了以B/C/S为基础的远程诊断决策体系的架构及其实现方案.系统采用现场总线技术组建现地监测诊断子系统,实现了分布式监测诊断和信息集成;采用B/C/S技术屏蔽了软... 详细信息

分析了状态检修过程中远程协作诊断决策技术研究的必要性、意义和效益,提出了以B/C/S为基础的远程诊断决策体系的架构及其实现方案.系统采用现场总线技术组建现地监测诊断子系统,实现了分布式监测诊断和信息集成;采用B/C/S技术屏蔽了软硬件平台、数据库及网络协议上的异构性,采用虚拟现实技术实现了知识的智能表达和交互,并融入多智能代理技术使之进一步具有诊断决策的智能性和自主性.

关键词：机组决策支持系统远程诊断多智能代理

Photoacoustic Spectrometry Investigation and Determination of Rare Earth Ions Ho3+ and Nd3+ in a Solution

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Chemical Research in Chinese Universities 1988年第2期 25-30页

作者： Yan hongtao, Deng Yanzhuo and zeng Yun’e(Department of Chemistry, the Centre of analysis and Measurement,Wuhan University, Wuhan)

A home-made high sensitive photoacoustic transducer was used to determine the photoacoustic signal in a solution. The photoacoustic spectra of Ho in different solvents were measured and comparedwith its absorption spectrum. The affection factors of photoacousticsensitivity are discussed. The trivalent rare earth ions Ho3+ and Nd3+in an aqueous acetonitrile solution were determined. The detection limit is 5×10-8 mol/L for Ho3+ and 1.0 ×10-7 mol/L for Nd3+, and corresponds to the absorbance of 1.5×10 and 6.3×***.

关键词： Photoacoustic spectrometry Rare earth