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Electrochemical and electrochromic properties of P(carbazole-EDOT)Derivatives and its copolymer film with EDOT units

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Electrochemical and electrochromic properties of P(carbazole...

Tunable Three Dimensional Cytocompatible Micro-Environments Deigned by Controlled Alignment of PVDF Electrospun Fibers

河南省化学会2016年学术年会

作者： Bin Hu boshi tian Jin Liu Lin Jin Zhenling Wang The Key Laboratory of Rare Earth Functional Materials and Applications Zhoukou Normal University

Conductive polymers have attracted much attentions due to their potential applications in the fields of organic photovoltaics(OPVs), organic field effect transistors(OFETs), organic light-emitting diodes(OLEDs) or electrochromic devices(ECDs). As for electrochromic application, conjugated polymers possess numerous advantages such as facile synthetic access, vivid colours, fast response time environmental stability and solution processability. In this manuscript,4-[3,6-Bis-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-carbazol-9-yl]-benzoic acid ethyl ester(BCBA)was synthesized by simple chemical route, and its homopolymer and copolymer with 3,4-ethoxylene dioxy thiophene(EDOT) were obtained by electrochemical methods, and their structure and performance properties were characterized by NMR, MS, FT-IR, UV-vis spectroscopy and electrochemical station. The electrochemical results show that both the polymer display well-define electrochemical response. Spectroelectrochemical technique were performed to investigate the electrochemical and optical changes of the resulting polymer films, the bandgap of PBCBA films is found to be 2.52 eV, it can show yellow-green and purple color at different applied potentials, while P(BCBA-EDOT) films exhibit brown, green blue colors due to the existence of EDOT units, and its bandgap is 1.68 eV. What is more, both the polymer hold good optical contrast and response time,which make them potential application for ECDs.

关键词： Conductive polymers Electrochromism Carbazole

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Tunable Three Dimensional Cytocompatible Micro-Environments ...

聚丙烯酸/聚(N-异丙基丙烯酰胺)互穿网络水凝胶的制备及其性能

中国第四届静电纺丝大会(CICE2016)

作者： Lin Jin Qinwei Xu Bin Hu Jingbin Huang boshi tian Yilei Zhang Zhenling Wang The Key Laboratory of Rare Earth Functional Materials and Applications Zhoukou Normal University School of Mechanical & Aerospace Engineering Nanyang Technological University

Three dimensional（3D） aligned electrospun fibers hold a promising potential in a wide range of biomedical areas, including bio-sensors, controlled drug release and tissue engineering. Due to certain inherent technical challenges involved in fabrication, there has been a growing need for the fabrication of these fibers with tunable microarchitectures, porosity and overall morphology. Thus, it is highly desired to develop novel, cost-effective and easy to scale-up fabrication for 3D aligned electrospun fibers, especially in the purview of their usage in biomedical applications. Herein, we have developed a facile preparation of 3D PVDF aligned fibers（3D AFs） by an improved electrospinning technique. The obtained 3D AFs showed enhanced controllability on morphology, diameter and fiber density. Furthermore, the obtained 3D AFs showed an excellent in vitro biocompatibility, by facilitating adhesion and growth of human mesenchymal stem cells（h MSCs） within the 3D nanofiber micro-architectures. 3D AFs with aligned morphology enhanced the cellular activities and induced directional cell growth along the direction of nanofiber orientation, thereby providing an excellent cue for the anchorage and migration dependent h MSCs. More importantly, cell proliferation on the 3D AFs was found to be significantly higher than that on the nanofiber mats（NFMs）. Combined with controllable morphology and structure, we anticipate that this finding greatly enhances great potential applications of electrospun 3D AFs for therapeutically relevant 3D cell cultures, tissue engineering, diagnostics and other biomedical applications.

关键词： electrospinning PVDF h MSCs tissue engingeering

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精细石油化工 2010年第5期27卷 73-75页

作者：詹秀环田博士姚新建周口师范学院化学系河南周口466000

采用分步法制备了聚丙烯酸/聚N-异丙基丙烯酰胺互穿网络水凝胶,研究了该互穿水凝胶在不同温度和酸性条件下的溶胀性能。结果表明,该互穿水凝胶在pH=2的酸性条件下的吸水率为18 g/g,而在pH=10的碱性条件下吸水率达38 g/g,体现出明显地pH... 详细信息

采用分步法制备了聚丙烯酸/聚N-异丙基丙烯酰胺互穿网络水凝胶,研究了该互穿水凝胶在不同温度和酸性条件下的溶胀性能。结果表明,该互穿水凝胶在pH=2的酸性条件下的吸水率为18 g/g,而在pH=10的碱性条件下吸水率达38 g/g,体现出明显地pH敏感性能;同时,该互穿水凝胶兼具热缩温敏性能。

关键词：聚丙烯酸聚(N-异丙基丙烯酰胺) 互穿网络水凝胶温度敏感 pH敏感水凝胶

Crystal structure, morphology and luminescent properties of rare earth ion-doped SrHPO_4 nanomaterials

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Journal of Rare Earths 2015年第4期33卷 355-360页

作者：王梦楠田博士岳丹鲁伟于明丽李春阳李庆锋王振领 The Key Laboratory of Rare Earth Functional Materials and Applications Zhoukou Normal University Zhoukou 466001 China The College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou 450001 China Department of Applied Physics and University Research Facility in Materials Characterization and Device Fabrication The Hong Kong Polytechnic University Hong Kong China

Undoped and rare earth ions （Eu3＋, Ce3＋, Tb3＋） doped β-SrHPO4 nanomaterials were successfully prepared by a facile hydrothermal method. The crystal structure, morphology and luminescent properties were characterized by X-ray powder diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, photoluminescence （PL） spectra and lumi- nescence decay curves. The results indicated that the tmdoped and rare earth ions doped SrHPO4 nanomaterials （the doping concen- tration was not above 7%） were well crystallized, with the same crystal structure （^-SrHPO4）. Nevertheless, the doping of rare earth ions could lead to the changing of morphology from nanoflakes to nanocrystals. Under the excitation of UV light, rare earth ions （Eu3＋, Ce3＋, Tb3＋） doped I3-SrHPO4 nanocrystals exhibited the characteristic emission of Eu3＋, Ce3＋ and Tb3＋ ions, respectively. The luminescence decay curves of [3-SrHPO4：Eu3＋ and D-SrHPO4：Ce3＋,Th3＋ nanocrystals conformed to the double exponential fluores- cence decay, and the average lifetimes were 1.14 and 4.12 ms, respectively. The luminescence decay curve of 13-SrHPO4：Ce3＋ was fitted into a single exponential function, and the lifetime was about 0.78 ns.

关键词： β-SrHPO4 luminescent properties rare earth ion doping rare earths

Origin7.0在“PbI_2溶度积的测定”实验数据处理中的应用

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周口师范学院学报 2010年第5期27卷 76-78页

作者：田博士刘少华周口师范学院化学系河南周口466000

运用Origin7.0软件对"PbI2溶度积的测定"实验中的数据和实验结果进行处理和分析,解决了该实验中数据较多、不易处理及手工绘图误差大的问题,提高了实验结果的准确度.

关键词： Origin7.0 数据处理溶度积测定

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pH敏感水凝胶PMAA对布洛芬的控制释放

化工新型材料 2011年第6期39卷 92-94页

作者：田博士刘少华詹秀环王晓艺张彬姚新建王子云周口师范学院化学系周口466000

采用自由基聚合法制备了pH敏感水凝胶聚甲基丙烯酸(PMAA),研究了该凝胶在不同pH值溶液中的溶胀性能。结果表明,PMAA凝胶在pH=2时的溶胀率仅为2.6,而在pH=10时的溶胀率达15.8,具有明显的pH敏感性能。以疏水性布洛芬为模型药物,研究了PMA... 详细信息

采用自由基聚合法制备了pH敏感水凝胶聚甲基丙烯酸(PMAA),研究了该凝胶在不同pH值溶液中的溶胀性能。结果表明,PMAA凝胶在pH=2时的溶胀率仅为2.6,而在pH=10时的溶胀率达15.8,具有明显的pH敏感性能。以疏水性布洛芬为模型药物,研究了PMAA水凝胶作为药物载体对布洛芬的负载及释放性能,结果显示:PMAA凝胶的载药量约为12.9%(wt),布洛芬在模拟胃液(pH=1.2)中的累积释放量较小(26.5%),释放速率较慢;在模拟肠液(pH=7.5)中的累积释放量较大(61.6%),释放速率较快,体现了良好的pH敏感控制释放性能。

关键词：聚甲基丙烯酸(PMAA) 溶胀行为 pH敏感布洛芬控制释放

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虚拟化桌面云在民航气象业务的应用

气象水文海洋仪器 2023年第4期40卷 130-133页

作者：曹枝东田犁符博时苏秋波民航重庆空管分局重庆401120

为节约IT资源并实现用户主机集中统一管理,文章采用虚拟化桌面云技术,在远端的机房服务器上搭建虚拟化数据中心,根据业务实际需求分配虚拟服务器和虚拟用户主机的计算存储资源,在“云端”部署用户桌面应用程序,实现了业务网云桌面的快... 详细信息

为节约IT资源并实现用户主机集中统一管理,文章采用虚拟化桌面云技术,在远端的机房服务器上搭建虚拟化数据中心,根据业务实际需求分配虚拟服务器和虚拟用户主机的计算存储资源,在“云端”部署用户桌面应用程序,实现了业务网云桌面的快速交付和应用,用户在业务网任意位置均可访问属于自己的云桌面,便于开展航空气象预报预警服务。这种方式既确保用户能够便捷地访问云桌面应用,也保障了用户的数据安全性以及用户主机的运行稳定性。

关键词：虚拟化桌面云气象业务预报服务数据安全

基于燃煤智能发电ICS的主辅机一键启停APS技术应用分析

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能源科技 2021年第1期19卷 41-45页

作者：赵俊杰冯树臣田景奇杨如意赵博石胡勇刘强国电内蒙古东胜热电有限公司内蒙古鄂尔多斯017000 国电电力发展股份有限公司北京100101 华北电力大学能源与动力工程学院北京102206 中国石油大学(北京)机械与储运工程学院北京102249

针对燃煤火力发电站,基于ICS智能发电平台,分析APS一键启停技术的功能架构、特点和应用效果,通过机组整体和重要辅机一键启停、一键定期试验等功能,提升机组的整体智能化、安全性和经济性。结果表明,APS技术能有序地管理、控制和整合机... 详细信息

针对燃煤火力发电站,基于ICS智能发电平台,分析APS一键启停技术的功能架构、特点和应用效果,通过机组整体和重要辅机一键启停、一键定期试验等功能,提升机组的整体智能化、安全性和经济性。结果表明,APS技术能有序地管理、控制和整合机组SCS、MCS、FSSS、DEH、MEH等子控制系统,按预先设定的程序控制各设备以及基于5个断点的整机自动启动和自动停止。APS的功能架构包括:机组控制级、功能组控制级、功能子组控制级和设备驱动级4层结构。基于操作票、运行规程和面向对象的设计原理,可构建辅机或功能组一键启停,实现辅机运行标准化和自动化操作、故障自动处理、定期试验一键操作。

关键词：智慧电厂智能发电平台电气热控一体化控制辅机一键启停逻辑顺序控制

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高校校园声环境质量监测系统设计与实现

科技创新与应用 2024年第19期14卷 27-30页

作者：田晓东青岛黄海学院山东青岛266000

针对高校校园声环境质量监测与评价治理问题,采用模块化设计思路和大数据分析方法,设计实现高校校园环境噪声监测与分析系统,通过人机交互方式设定监测参数,以及监测数据的实时处理,为高校校园声环境监测和改善提供必要的依据和支撑。

关键词：声环境监测校园噪声监测数据采集