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Journal of Wuhan University of Technology(Materials Science) 2013年第2期28卷 269-273页

作者：赵晓燕 wang chenyi ZHAO Xiaohua SUN Zheng College of Petrochemical Engineering Changzhou University Changzhou Expansion New Stuff Technology Co. Ltd School of Materials Science and Engineering Changzhou University

Novel poly（thioether imide）s were synthesized by 2,5-dimercapto-l,3,4-thiadiazole, and aromatic heterocyclic chlorodiimids through nucleophilic!substitution reaction as alkali catalysts were presented. The poly（thioether imide）s exhibited good thermal property. The glass transition temperatures of polymers were around 373 ℃, and 10% weight loss temperatures were in the range of 450-500 ℃ in nitrogen/air atmosphere. Meanwhile, the chloroform dilute solutions of these polYmers could show strong UV-vis absorption peaks at about 289 nm. After being protonated by inorganic acids （HC1）, the new shoulder absorption peaks were observed at 350 nm. The PL absorption bands of polymer solutions were in the region of 350-550 nm, which showed the green-yellow fluorescence.

关键词： aromatic heterocyclic chlorodiimide thermal stability fluorescence protonation

Chaos Raman distributed optical fiber sensing

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Light(Science & Applications) 2023年第10期12卷 2105-2121页

作者： chenyi wang Jian Li Xinxin Zhou Zijia Cheng Lijun Qiao Xiaohui Xue Mingjiang Zhang College of Physics Taiyuan University of TechnologyTaiyuan 030024 ShanxiChina Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education Taiyuan University of TechnologyTaiyuan 030024 ShanxiChina College of Electrical Information and Optical Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032 ShanxiChina

The physics principle of pulse flight positioning is the main theoretical bottleneck that restricts the spatial resolution of the existing Raman distributed optical fiber sensing *** to the pulse width of tens of nanoseconds,the spatial resolution of the existing Raman distributed optical fiber sensing scheme with kilometer-level sensing distance is limited to the meter level,which seriously restricts the development of the optical time-domain reflection *** this paper,a chaos laser is proposed in the context of the physical principle of the Raman scattering effect,and a novel theory of chaos Raman distributed optical fiber sensing scheme is *** scheme reveals the characteristics of chaos Raman scattering light excited by a chaotic signal on the sensing ***,the chaos time-domain compression demodulation mechanism between the temperature variation information and chaos correlation peak is ***,the position of the temperature variation signal is precisely located using the delay time of the chaos correlation peak combined with the chaos pulse flight *** on this novel optical sensing mechanism,an experiment with 10 cm spatial resolution and 1.4 km sensing distance was conducted,and the spatial resolution was found to be independent of the sensing *** the limit of the existing spatial resolution theory,the spatial resolution of the proposed scheme is 50 times higher than that of the traditional *** scheme also provides a new research direction for optical chaos and optical fiber sensing.

关键词： fiber optical scattering

Electro-triggered Joule heating method to synthesize single-phase CuNi nano-alloy catalyst for efficient electrocatalytic nitrate reduction toward ammonia

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Nano Research 2023年第5期16卷 6632-6641页

作者： Zunjie Zhang Yang Liu Xiaozhi Su Ziwei Zhao Zhenkun Mo chenyi wang Yaling Zhao Ye Chen Shuyan Gao School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China School of Materials Science and Engineering Henan Normal UniversityXinxiang 453007China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China

Electrochemical nitrate reduction reaction(NO_(3)RR)has great potential for ammonia(NH_(3))synthesis benefiting from its environmental friendliness and ***-based alloys with elemental diversity and adsorption tunability are widely used as electrocatalyst to lower the reaction overpotential for NO_(3)RR ***,phase separation commonly found in alloys leads to uneven distribution of elements,which limits the possibility of further optimizing the catalytic ***,an electrotriggered Joule heating method,possessing unique superiority of flash heating and cooling that lead to well-dispersed nanoparticles and uniform mixing of various elements,was adopted to synthesize a single-phase CuNi nano-alloy catalyst evenly dispersed on carbon fiber paper,CFP-Cu_(1)Ni_(1),which exhibited a more positive NO_(3)RR initial potential of 0.1 V versus reversible hydrogen electrode(***)than that of pure copper nanoparticles at 10 mA·cm^(−2)in 0.5 mol·L^(−1)Na_(2)SO_(4)+0.1 mol·L^(−1)KNO_(3)***,CFP-Cu_(1)Ni_(1) presented high electrocatalytic activity with a Faradaic efficiency of 95.7%and NH_(3)yield rate of 180.58μmol·h^(−1)·cm^(−2)(2550μmol·h^(−1)·mg_(cat)^(−1))at−0.22 V *** calculations showed that alloying Cu with Ni into single-phase caused an upshift of its d-band center,which promoted the adsorption of NO_(3)−and weakened the adsorption of NH_(3).Moreover,the competitive adsorption of hydrogen ions was restrained until−0.24 *** work offers a rational design concept with clear guidance for rapid synthesis of uniformly dispersed single-phase nano-alloy catalyst for efficient electrochemical NO_(3)RR toward ammonia.

关键词： ammonia nitrate reduction reaction CuNi nano-alloy single-phase adsorption energy

Study on the Synergistic Catalytic Oxidation of Landfill Leachate by O3 /H2O2 System

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Meteorological and Environmental Research 2016年第4期7卷 56-58页

作者： Teng Lihua wang chenyi wang Jianping Zhejiang Wanli University Ningbo 315100 China Ningbo Academy of Ocean and Fishery Ningbo 315012 China

The characteristics of water quality had significant effects on the oxidative degradation of O_3/H_2O_2 *** this study,iron supported on activated carbon catalyst was prepared firstly,and then the treatment of landfill leachate by O_3/H_2O_2/catalyst system was analyzed,especially the roles of H_2O_2 in the oxidation of landfill leachate by O_3/H_2O_2 *** results showed that at room temperature,when the dosage of the catalyst was 1.0g,the removal rate of COD from the landfill leachate reached 79.8% after 50 ml of the landfill leachate(pH=3)was oxidized by O_3(its flow rate was 5g/h)for 50 *** 0.3ml of H_2O_2 was added to the landfill leachate,the removal rate of COD increased from 79.8%to 88.7%.It showed that the landfill leachate with the characteristics of complex composition and difficult biodegradation could be effectively degraded by the O_3/H_2O_2 system.

关键词： Landfill leachate Oxidative degradation O3/H2O2 system China

与Jurbanite固相平衡的酸性天然地表水中铝形态分布的计算机模拟

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计算机与应用化学 2005年第11期22卷 1018-1022页

作者：王趁义湖州师范学院化学系浙江湖州313000

基于热力学平衡计算,用计算机模拟研究了与Jurbanite固相平衡的酸性天然地表水中各种无机铝形态、有机铝形态、聚合铝形态随水溶液pH变化的关系,用文献提供的实际水样数据作为输入数据,比较了与酸性天然地表水中可能存在的固相矿物如Jur... 详细信息

基于热力学平衡计算,用计算机模拟研究了与Jurbanite固相平衡的酸性天然地表水中各种无机铝形态、有机铝形态、聚合铝形态随水溶液pH变化的关系,用文献提供的实际水样数据作为输入数据,比较了与酸性天然地表水中可能存在的固相矿物如Jurbanite,basaluminite,alunite和gibbsite相平衡的几种土壤溶液中的铝形态变化规律,重点放在易受酸沉降影响的Jur- banite上。在矿相Jurbanite存在的条件下,由模型预知,SO4 2-对铝的形态分布和总铝浓度有显著影响,而在所研究的pH范围内有机铝络合物和氟络合物的浓度相对较小。模型同时被用于文献中与Jurbanite固相平衡的土壤溶液中铝形态的计算,预测其浓度大小依次为总可溶性铝、无机铝和有机铝。然而,模型结果表明,Jurbanite受酸沉降影响溶解之后将显著地影响土壤溶液Al化学。

关键词：铝形态分布 Jurbanite固相平衡酸性天然水计算机模拟

Poly(aryl ether nitrile)s containing flexible side-chain-type quaternary phosphonium cations as anion exchange membranes

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Science China Materials 2020年第4期63卷 533-543页

作者： chenyi wang Zhengwang Tao Xiaoyan Zhao Jian Li and Qiang Ren Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Jiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsSchool of Materials Science and EngineeringChangzhou UniversityChangzhou 213164China

In order to effectively improve the properties of anion exchange membrane(AEM)materials,a series of novel poly(aryl ether nitrile)s with flexible side-chain-type quaternary phosphonium cations(PAEN-TPP-x)were designed and prepared on the basis of considering the influences of polymer backbone,cationic group species and the connection way between the cations and polymer *** synthetic method,structure and ion-exchange capacity,water absorption,swelling,hydroxide conductivity and alkaline stability of the obtained AEMs were studied.A comparative study with other reported AEMs was also performed for further exploration of the relationship between the structure and *** AEMs with flexible side-chain-type quaternary phosphonium cations displayed good comprehensive *** water uptakes and swelling ratios were in the range of 11.6%–22.7%and 4.4%–7.8%at 60℃,*** had hydroxide conductivity in the range of 28.6–45.8 mS cm^-1 at 60℃.Moreover,these AEMs also exhibited improved alkaline stability,and the hydroxide conductivity for PAEN-TPP-0.35 could remain 82.1%and 80.6%of its initial value at 60 and 90℃in 2 mol L^-1 NaOH solution for480 h,respectively.

关键词： anion exchange membrane poly(aryl ether nitrile)s quaternary phosphonium cations alkaline stability

聚丙烯酰胺铁的合成及其在煤泥助滤脱水中的应用

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工业水处理 2007年第8期27卷 43-44页

作者：王趁义湖州师范学院化学系浙江湖州313000

利用形成配合物的原理,合成了新型聚丙烯酰胺铁絮凝剂(PF),同时验证了PF在煤泥水处理中的絮凝助滤性能,浅析了其絮凝助滤机理。实验证明,与目前广泛使用的聚丙烯酰胺相比,PF对高浊度、高色度煤泥水有很好的絮凝处理效果,且产生的污泥体... 详细信息

利用形成配合物的原理,合成了新型聚丙烯酰胺铁絮凝剂(PF),同时验证了PF在煤泥水处理中的絮凝助滤性能,浅析了其絮凝助滤机理。实验证明,与目前广泛使用的聚丙烯酰胺相比,PF对高浊度、高色度煤泥水有很好的絮凝处理效果,且产生的污泥体积小,脱水性能好。

关键词：聚丙烯酰胺铁煤泥水絮凝和过滤脱水

H∞ control of Markovian jumping systems under Hybrid Attacks

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H∞ control of Markovian jumping systems under Hybrid Attack...

数字化转型能否缓解股票市场价值对内在价值的偏离程度?——基于区域数字经济发展视角的实证研究

第43届中国控制会议

作者： chenyi wang Yuan Liu Qiang Ling Dept.of Automation University of Science and Technology of China

This paper addresses the H control problem for a networked Markovian jump system subject to hybrid attacks that occurred in both the sensor-controller（S-C） network and the controller-actuator（C-A） *** the limited network bandwidth and the impact of dual-networked hybrid attacks simultaneously,two dynamic event-triggers are designed at the controller and the *** conditions to ensure the asymptotically mean-square stable（AMSS） with a desired Hperformance are *** further validate the effectiveness of the proposed control schemes,a simulation example is provided.

关键词： secure control Markovian jump systems cyberattacks H_∞ performance

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金融理论与实践 2023年第6期 11-21页

作者：王陈懿兰州财经大学会计学院甘肃兰州730000

数字经济的发展促进了数据要素在不同市场及市场中各个主体间的流动分配,数字化转型为企业与外部提供了信息沟通渠道,增强了企业数字治理能力。通过选取A股上市公司2014—2020年面板数据为研究样本,从微观主体和宏观区域双视角探寻数字... 详细信息

数字经济的发展促进了数据要素在不同市场及市场中各个主体间的流动分配,数字化转型为企业与外部提供了信息沟通渠道,增强了企业数字治理能力。通过选取A股上市公司2014—2020年面板数据为研究样本,从微观主体和宏观区域双视角探寻数字化转型能否缓解市场价值对内在价值的偏离程度。研究结果表明,企业数字化转型能显著降低股票市场价值对内在价值的偏离程度,在数字经济发展水平越高的地区,这种影响作用越显著;进一步研究表明,企业数字化转型能通过提升信息披露质量、提高公司业绩及抑制管理层机会主义行为,进而降低股票市场价值对内在价值的偏离程度。研究结论为企业、政府及市场投资者行为提供实践指导,对数字经济背景下如何提高我国证券市场有效性、提高资源配置效率具有现实意义。

关键词：数字化转型数字经济资本市场市场价值内在价值

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9,9-二(丙酸六氟丁酯)芴共聚物的合成及荧光性能

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高分子材料科学与工程 2020年第4期36卷 7-14页

作者：贾正李坚任强汪称意江苏省环境友好高分子材料重点实验室常州大学材料科学与工程学院江苏常州213164

采用迈克尔加成反应合成了含氟芴单体2,7-二溴-9,9-二(丙酸六氟丁酯)芴(FHFBP),进一步采用铃木反应制备了不同FHFBP结构单元含量的9,9-二(丙酸六氟丁酯)芴-9,9-二辛基芴共聚物(PF8FHFBP)。通过红外光谱、核磁氢谱、紫外光谱和荧光光谱... 详细信息

采用迈克尔加成反应合成了含氟芴单体2,7-二溴-9,9-二(丙酸六氟丁酯)芴(FHFBP),进一步采用铃木反应制备了不同FHFBP结构单元含量的9,9-二(丙酸六氟丁酯)芴-9,9-二辛基芴共聚物(PF8FHFBP)。通过红外光谱、核磁氢谱、紫外光谱和荧光光谱等方法对其结构和性能进行了表征。结果表明,成功合成了相对分子质量较高的含氟聚芴PF8FHFBP,并且在甲苯、四氢呋喃(THF)和氯仿等常用的有机溶剂中具有良好的溶解性。含氟侧链的引入有效地提高了聚合物的疏水性,但使得波长440nm处聚芴的荧光峰渐渐消失,在530nm附近出现了1个新的峰。可能是含氟侧链的引入使聚合物侧链产生结晶现象,主链之间更加致密的堆砌产生出激基缔合物,通过不同浓度共聚物溶液的荧光光谱与共聚物的差示扫描量热测试作了进一步分析讨论。

关键词：含氟聚芴铃木反应荧光光谱疏水性聚芴激基缔合物