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High concentration xylene decomposition and diagnostic analysis by non-thermal plasma in a DBD reactor

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Plasma Science and Technology 2017年第6期19卷 60-65页

作者： zehua xiao Di XU Chunjing HAO Jian QIU Kefu LlU Department of Light Sources ＆ Illuminating Engineering Fudan University Shanghai 200433 People＇s Republic of China

Dielectric barrier discharge（DBD） is utilized to decompose xylene vapor in mobile gas under normal atmospheric *** plasma is generated by an AC power source with a frequency of 6 *** the experiment,the discharge power on the DBD reactor was calculated by a Lissajous figure,and the specific input energy（SIE） of different discharge voltage or residence time was *** concentrations of xylene,carbon monoxide and carbon dioxide in the gas were analyzed by gas *** spectra of DBD were diagnosed using a *** calculated the conversion rate（CR）,mineralization rate（MR） and carbon dioxide *** relationship between these quantities and the SIE was *** experimental results show that high concentration xylene can be decomposed mostly by DBD *** CR can reach as high as 90%with the main product of carbon dioxide.

关键词： dielectric barrier discharge specific input energy conversion rate mineralization rate carbon dioxide selectivity

Influence of electrical parameters on H2O2 generation in DBD non-thermal reactor with water mist

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Plasma Science and Technology 2017年第6期19卷 26-32页

作者： Di XU zehua xiao Chunjing HAO Jian QIU Kefu LIU Institute of Light Sources and Illuminating Engineering Fudan University Shanghai 200433 People＇s Republic of China

A dielectric barrier discharge（DBD） reactor is introduced to generate H2O2 by non-thermal plasma with a mixture of oxygen and water mist produced by an ultrasonic *** results of our experiment show that the energy yield and concentration of the generated H2O2 in the pulsed discharge are much higher than that in AC discharge,due to its high energy efficiency and low heating ***-sized liquid droplets produced by an ultrasonic atomizer in water mist have large specific surface area,which greatly reduces mass transfer resistance between hydroxyl radicals and water liquids,leading to higher energy yield and H2O2 concentration than in our previous *** influence of applied voltage,discharge frequency,and environmental temperature on the generated H2O2 is discussed in detail from the viewpoint of the DBD *** H2O2 concentration of 30 mg l^-1,with the energy yield of 2 gkW^-1h^-1 is obtained by pulsed discharge in our research.

关键词： hydrogen peroxide dielectric barrier discharge pulsed discharge non-thermal plasma electrical parameters

Artificial Intelligence Meets Flexible Sensors:Emerging Smart Flexible Sensing Systems Driven by Machine Learning and Artificial Synapses

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Nano-Micro Letters 2024年第1期16卷 235-273页

作者： Tianming Sun Bin Feng Jinpeng Huo Yu xiao Wengan Wang Jin Peng zehua Li Chengjie Du Wenxian Wang Guisheng Zou Lei Liu Department of Mechanical Engineering State Key Laboratory of Tribology in Advanced EquipmentKey Laboratory for Advanced Manufacturing by Materials Processing TechnologyMinistry of Education of PR ChinaTsinghua UniversityBeijing 100084People’s Republic of China College of Materials Science and Engineering Shanxi ProvinceTaiyuan University of TechnologyTaiyuan 030024People’s Republic of China

The recent wave of the artificial intelligence(AI)revolution has aroused unprecedented interest in the intelligentialize of human *** an essential component that bridges the physical world and digital signals,flexible sensors are evolving from a single sensing element to a smarter system,which is capable of highly efficient acquisition,analysis,and even perception of vast,multifaceted *** challenging from a manual perspective,the development of intelligent flexible sensing has been remarkably facilitated owing to the rapid advances of brain-inspired AI innovations from both the algorithm(machine learning)and the framework(artificial synapses)*** review presents the recent progress of the emerging AI-driven,intelligent flexible sensing *** basic concept of machine learning and artificial synapses are *** new enabling features induced by the fusion of AI and flexible sensing are comprehensively reviewed,which significantly advances the applications such as flexible sensory systems,soft/humanoid robotics,and human activity *** two of the most profound innovations in the twenty-first century,the deep incorporation of flexible sensing and AI technology holds tremendous potential for creating a smarter world for human beings.

关键词： Flexible electronics Wearable electronics Neuromorphic Memristor Deep learning

异质性环境规制工具与企业绿色创新激励——来自上市企业绿色专利的证据

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经济研究 2020年第9期55卷 192-208页

作者：李青原肖泽华武汉大学经济与管理学院 430072

环境规制如何释放制度红利,促进经济与环境协调发展?鲜有文献从微观企业和环境规制工具异质性的角度进行考察。本文以中国A股重污染行业上市企业2011—2017年的数据作为样本,研究发现:排污收费“倒逼”了企业绿色创新能力,这一“倒逼”... 详细信息

环境规制如何释放制度红利,促进经济与环境协调发展?鲜有文献从微观企业和环境规制工具异质性的角度进行考察。本文以中国A股重污染行业上市企业2011—2017年的数据作为样本,研究发现:排污收费“倒逼”了企业绿色创新能力,这一“倒逼”效应体现在外部压力和内部激励;环保补助却“挤出”了企业绿色创新能力,这一“挤出”效应体现在迎合政府和机会主义,在控制内生性、排除干扰性因素、改变变量定义等稳健性检验后,该结论依然成立。进一步研究发现,当企业资源基础较强时,排污收费对绿色创新的“倒逼”效应更加明显,但环保补助不存在这一现象;排污收费促进了企业绿色发明专利成果的产出,而环保补助却“挤出”了企业绿色发明专利和绿色实用新型专利成果的产出。本文发现了不同性质的环境规制工具对企业产生了截然相反的效果,对已有关于环境规制经济后果研究的争论提供了中国的微观证据,为如何实现环境保护与企业绿色竞争力提升的“双重红利”提供了理论支持。

关键词：异质性环境规制工具排污收费环保补助绿色创新

靛蓝胭脂红饱和吸附剂的介质阻挡放电异位再生研究（英文）

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靛蓝胭脂红饱和吸附剂的介质阻挡放电异位再生研究（英文）

重金属污染区与非污染区鸡眼草幼苗对锰胁迫的生理生化响应

第十八届全国等离子体科学技术会议

作者： Hao Chunjing xiao zehua Xu Di Liu Kefu 复旦大学

Adsorption,non-thermal plasma and their combinations have been widely studied for wastewater *** work aims at investigating plasma-material association for indigo carmine dyeing wastewater: in a first step,the material is used as an adsorbent until the complete coverage of adsorption sites;in a second step,the indigo saturated adsorbent is put into the discharge reactor from the oscillation reactor,the discharge is ignited on the material *** both steps,ectopic regeneration rate of deactivated adsorbent is *** ives of our approach are:(Ⅰ) the structural properties of virgin and DBD treated absorbent;(Ⅱ) the investigation of plasma interaction with indigo saturated materials(Ⅲ) the analysis of intermediate products between gas and liquid phase;(Ⅳ) a route for the indigo carmine degradation by DBD plasma in the regeneration of saturated absorbent has been proposed.A flat-plate reactor coated with adsorbent has been *** degradation mechanisms and products in the regeneration process were analyzed by FT-IR,BET,GC-MS,and *** results suggested that the C=C bonds in Indigo Carmine adsorbed by absorbent were cleaved by DBD plasma,and the remain intermediate products were identified in the cyclic adsorption in the aqueous *** adsorption capacity of adsorption/DBD treated absorbent could maintain relatively high level,which confirmed that the DBD treatment regenerated the absorbent for subsequent *** could be found that the degradation of Indigo Carmine and regeneration of exhausted absorbent were simultaneously carried out by DBD.

关键词： Indigo Carmine Adsorbent Ectopic regeneration regeneration mechanism

来源： cnki会议评论

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北方园艺 2020年第14期 118-128页

作者：李欣航肖泽华刘文胜中南林业科技大学生命科学与技术学院湖南长沙410004

为探明鸡眼草(Kummerowia striata)对锰胁迫适应的理化机制,以重金属污染区(湖南湘潭锰矿)与非污染区(中南林业科技大学校园)的鸡眼草种子为研究对象,采用培养皿滤纸法,比较研究了不同浓度锰胁迫对2个居群种子发芽、幼苗生长及幼苗生理... 详细信息

为探明鸡眼草(Kummerowia striata)对锰胁迫适应的理化机制,以重金属污染区(湖南湘潭锰矿)与非污染区(中南林业科技大学校园)的鸡眼草种子为研究对象,采用培养皿滤纸法,比较研究了不同浓度锰胁迫对2个居群种子发芽、幼苗生长及幼苗生理生化特性的影响。结果表明:1)随着锰浓度的升高,2个居群鸡眼草种子的发芽率、发芽势均呈逐渐降低的趋势,幼苗生长则呈现"低促高抑"现象,非污染区幼苗生长受到锰胁迫抑制作用高于污染区;2)随着锰浓度的升高,2个居群幼苗可溶性糖、可溶性蛋白质和脯氨酸含量均呈现先增加后下降的变化趋势;超氧化物歧化酶(SOD)活性基本无变化,过氧化物酶(POD)活性呈先增加后下降的变化趋势,丙二醛(MDA)含量则呈逐渐升高的趋势;3)根据抗锰隶属函数值的比较,鸡眼草对锰胁迫具有较强的耐性,污染区居群比非污染区居群具有更强的锰耐受性。

关键词：锰胁迫重金属污染区非污染区鸡眼草种子萌发生理生化

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环境DNA在两栖动物监测中的应用研究进展

生态学报 2023年第19期43卷 7861-7873页

作者：肖泽华董姗姗张振华章嫡妮宋志平生态环境部南京环境科学研究所、国家环境保护生物多样性与生物安全重点实验室南京210042 复旦大学生物多样性科学研究所上海200438

两栖动物是我国受威胁程度最高的动物类群,加强两栖动物资源调查和多样性监测,是开展两栖动物保护和濒危物种拯救行动的关键性基础工作。传统的两栖动物监测主要以形态学和声学为基础,耗时费力,且难以发现一些隐蔽性较强的稀有物种。基... 详细信息

两栖动物是我国受威胁程度最高的动物类群,加强两栖动物资源调查和多样性监测,是开展两栖动物保护和濒危物种拯救行动的关键性基础工作。传统的两栖动物监测主要以形态学和声学为基础,耗时费力,且难以发现一些隐蔽性较强的稀有物种。基于环境DNA(environmental DNA,eDNA)的调查方法以其快速、灵敏、高效、无创等独特优势,为两栖动物多样性监测及保护提供了新的工具。综述了eDNA在两栖动物多样性监测、外来入侵和珍稀濒危物种调查、物种丰度或生物量估测等研究领域的应用进展,分析了两栖动物eDNA产生、扩散、迁移和降解的动态变化特征及其关键影响因子,探讨了eDNA应用于两栖动物监测研究的局限性并提出了优化建议,同时对未来的研究方向进行了展望,以充分挖掘eDNA在两栖动物监测中的应用潜力,为两栖动物多样性保护和管理提供新的思路。

关键词：两栖动物环境DNA 生物监测生物多样性宏条形码

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电厂热工控制中DCS系统管理维护分析

今日自动化 2023年第2期 161-163页

作者：丁屾肖泽华广环投清新环保能源有限公司广东湛江524200

随着现代化科学技术手段的不断发展与进步,各种技术设备的创新与改革,也带动了电力相关行业的发展。正是在这样的时代发展背景中,DCS控制系统也逐渐成为电厂热工控制中比较重要的存在。基于此,从电厂热工控制系统中DCS的概述与应用必要... 详细信息

随着现代化科学技术手段的不断发展与进步,各种技术设备的创新与改革,也带动了电力相关行业的发展。正是在这样的时代发展背景中,DCS控制系统也逐渐成为电厂热工控制中比较重要的存在。基于此,从电厂热工控制系统中DCS的概述与应用必要性、DCS系统的应用、DCS系统管理维护研究3个层面展开了更为深入的研究与讨论,为我国现代化电厂热工控制工作效能的提升,奠定了更加良好的基础条件。

关键词：电厂热工控制 DCS系统管理维护

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城轨车辆车载式轨道检测系统设计

电力机车与城轨车辆 2023年第4期46卷 66-70页

作者：曾伟肖泽桦中车株洲电力机车有限公司湖南株洲412001

针对既有轨道检测系统不能实时监测轨道状态,且无法直接安装于城轨车辆的问题,文章根据实际需求分析轨道检测系统的技术要求,从硬件设计和电气控制设计方面阐述了城轨车辆车载式轨道检测系统的设计方案。样机试验结果表明,该城轨车辆车... 详细信息

针对既有轨道检测系统不能实时监测轨道状态,且无法直接安装于城轨车辆的问题,文章根据实际需求分析轨道检测系统的技术要求,从硬件设计和电气控制设计方面阐述了城轨车辆车载式轨道检测系统的设计方案。样机试验结果表明,该城轨车辆车载式轨道检测系统满足技术规范及轨道日常检测需求。

关键词：城轨车辆车载式轨道检测系统模块化轻量化设计