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超疏水耐酸碱改性纸张的制备与性能

高等学校化学学报 2024年第8期45卷 148-155页

作者：韩金娥王聃轲钮腾飞江南大学生命科学与健康工程学院无锡214122 江南大学化学与材料工程学院无锡214122

采用可见光促进的原子转移自由基聚合(ATRP)法,实现了叠氮基单体与含氟单体共聚,得到全氟辛酯叠氮苯酯共聚物,并将其应用于纸张表面改性,制成了超疏水耐酸碱改性纸张.研究了聚合物中各单体种类、比例及聚合物分子量对超疏水耐酸碱性能... 详细信息

采用可见光促进的原子转移自由基聚合(ATRP)法,实现了叠氮基单体与含氟单体共聚,得到全氟辛酯叠氮苯酯共聚物,并将其应用于纸张表面改性,制成了超疏水耐酸碱改性纸张.研究了聚合物中各单体种类、比例及聚合物分子量对超疏水耐酸碱性能的影响.此外,还表征了改性纸张的表面微观结构,研究了聚合物与纸张的连接方式,解释了改性纸张的超疏水耐酸碱性能原理.结果表明,当甲基丙烯酸-4-叠氮苯酯与甲基丙烯酸全氟辛酯的摩尔比为1∶4时,全氟辛酯叠氮苯酯共聚物-80改性后的纸张表现出极强的疏水性,水接触角达到165°,并在强酸(pH=1)或强碱(pH=13)环境下维持72 h无明显变化.制备的共聚材料在防水、耐酸碱应用中具有良好的应用前景.

关键词：叠氮单体含氟单体超疏水性耐酸碱改性纸张

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考虑动态曲线特征的退役锂离子电池分选方法

重庆理工大学学报（自然科学） 2023年第2期37卷 19-27页

作者：聂金泉黄燕琴高洋洋李银银王聃轲湖北文理学院汽车与交通工程学院湖北襄阳441053 纯电动汽车动力系统设计与测试湖北省重点实验室湖北襄阳441053 襄阳市公共检验检测中心湖北襄阳441000

退役锂离子电池成组时,单体电池间的性能差异会造成模组性能的快速衰减,使得模组循环使用寿命降低,甚至引发安全问题。为此,以100节退役锂离子电池为研究对象进行充放电实验和内阻测试,提出了一种退役电池一致性分选方法。运用能量差表... 详细信息

退役锂离子电池成组时,单体电池间的性能差异会造成模组性能的快速衰减,使得模组循环使用寿命降低,甚至引发安全问题。为此,以100节退役锂离子电池为研究对象进行充放电实验和内阻测试,提出了一种退役电池一致性分选方法。运用能量差表述电池极化差异,选用容量、能量差、充电电压、放电电压、充电内阻、放电内阻6个指标进行多参数预分选;综合考虑电压偏差与容量偏差,采用K-means算法进行动态曲线分选;针对K-means算法K值不确定的问题,分别对电压、能量曲线进行归一化处理,基于频率分布直方图和频率分布曲线分析确定K值。实验结果表明:该分选方法能有效地改善电池的不一致性,分选后的电池充电电压一致性提高60%~94%,放电电压一致性提高10%~41%,容量一致性提高54%~67%。

关键词：退役动力电池分选方法一致性

基于数字调节增量补偿的新能源汽车充电桩测试电源方法与装置研究

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汽车实用技术 2021年第18期46卷 6-10,14页

作者：李银银刘枫王聃轲罗世唯刘付洋襄阳市公共检验检测中心湖北襄阳441000

随着新能源汽车的发展,电动汽车的上下游设施和保障性基础设施的建设方面的问题也引起了研究人员的关注。目前的电动汽车充电桩测试设备价格高昂且操作不便,文章利用数字调节增量补偿原理设计的装置有效地解决了这些问题,利用了高准确度... 详细信息

随着新能源汽车的发展,电动汽车的上下游设施和保障性基础设施的建设方面的问题也引起了研究人员的关注。目前的电动汽车充电桩测试设备价格高昂且操作不便,文章利用数字调节增量补偿原理设计的装置有效地解决了这些问题,利用了高准确度的AD转换电路和数字同步跟踪放大器,保证了测试电源的准确稳定输出,在增量最大为±15%的时候,开关功率放大器实际输出功率只有满量程功率输出的15%,体积和重量和成本不到原设备的7%,满足目前所有的测试项目,为相关设备的大规模产业化提供了基础。

关键词：充电桩测试电源数字调节增量补偿高准确度

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氢燃料电池零部件研究进展综述

汽车实用技术 2022年第7期47卷 200-204页

作者：王聃轲程伟吴元元赵小扬张俊卓襄阳市公共检验检测中心湖北襄阳441000

世界正面临能源危机与环境危机,氢燃料电池因其高能量转化比和排放物只有水而受到追捧。近年来,氢燃料电池的安全性问题成为研究的重点。文章从氢燃料电池的主要部件研究进展及商业化情况、氢燃料与其他燃料的安全性对比进行介绍,重点... 详细信息

世界正面临能源危机与环境危机,氢燃料电池因其高能量转化比和排放物只有水而受到追捧。近年来,氢燃料电池的安全性问题成为研究的重点。文章从氢燃料电池的主要部件研究进展及商业化情况、氢燃料与其他燃料的安全性对比进行介绍,重点论述了氢燃料电池的质子交换膜、双极板和催化剂等主要零部件的不同种类、优劣势以及最新的研究进展,分析国内外氢燃料电池发展的重点以及安全性,在使用成本及研究技术上对国家未来氢能发展提出一定的建议。

关键词：氢燃料电池电池主要部件电池安全性

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A high-reliability optical network architecture based on wavelength division multiplexing passive optical network

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Optoelectronics Letters 2021年第7期17卷 422-426页

作者： CHEN Baoren HONG danke wang Li OU Yongtong TAN Yizhi LI Xuewu ZHONG Xinhui China Southern Power Grid Power Dispatching Control Center Guangzhou 510030China China Southern Power Grid Digital Grid Research Institute Co. Ltd.Guangzhou 511458China School of Information Engineering Guangdong University of TechnologyGuangzhou 510006China

A highly reliable wavelength division multiplexing passive optical network architecture for the fifth generation(5 G) applications is designed by combining a tree topology with a dual-fiber ring. While the tree topology ensures the transmission quality of the network, the dual-fiber ring topology allows one to achieve flexible switching between the nodes, which aims to provide fault protection and network reliability. The signal transmission under the normal and three types of protection modes are analyzed. The performance analysis verifies the feasibility of the proposed architecture.

关键词： network passive optical

Multi-region calcium imaging in freely behaving mice with ultra-compact head-mounted fluorescence microscopes

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National Science Review 2024年第1期11卷 161-173页

作者： Feng Xue Fei Li Ke-ming Zhang Lufeng Ding Yang wang Xingtao Zhao Fang Xu danke Zhang Mingzhai Sun Pak-Ming Lau Qingyuan Zhu Pengcheng Zhou Guo-Qiang Bi Department of Precision Machinery and Precision Instruments University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Interdisciplinary Center for Brain Information the Brain Cognition and Brain Disease Institute Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Faculty of Life and Health Sciences Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences School of Life Sciences University of Science and Technology of China Institute of Semiconductors Chinese Academy of Sciences Department of Modern Life Sciences and Biotecnology Xiongan Institute of Innovation Xiongan New Area Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions Suzhou Institute for Advanced Research University of Science and Technology of China Institute of Artiflcial Intelligence Hefei Comprehensive National Science Center

To investigate the circuit-level neural mechanisms of behavior, simultaneous imaging of neuronal activity in multiple cortical and subcortical regions is highly desired. Miniature head-mounted microscopes offer the capability of calcium imaging in freely behaving animals. However, implanting multiple microscopes on a mouse brain remains challenging due to space constraints and the cumbersome weight of the ***, we present TINIscope, a Tightly Integrated Neuronal Imaging microscope optimized for electronic and opto-mechanical design. With its compact and lightweight design of 0.43 g, TINIscope enables unprecedented simultaneous imaging of behavior-relevant activity in up to four brain regions in ***-of-concept experiments with TINIscope recorded over 1000 neurons in four hippocampal subregions and revealed concurrent activity patterns spanning across these regions. Moreover, we explored potential multi-modal experimental designs by integrating additional modules for optogenetics, electrical stimulation or local field potential recordings. Overall, TINIscope represents a timely and indispensable tool for studying the brain-wide interregional coordination that underlies unrestrained behaviors.

关键词： miniature microscope multiple sites calcium imaging multimodal integration hippocampus

Highly conductive and transparent metal-organic frameworks thin film

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Science China Materials 2019年第9期62卷 1350-1356页

作者： Zhuoyi Li Yi Guo Wen Ying danke Chen Xiaobin wang Xu Ma Xing Zhao Zheng Deng Xinsheng Peng State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University

Energy crisis has aroused global concern and needs to be solved immediately. A series of serious environmental problems caused by the unlimited use of trad让ional fossil fuels like petroleum and charcoal, such as rising sea levels and melting glaciers, have dangerously threatened human destiny [ 1 ]. It is an effective choice to look for new energy sources to replace the lim让ed fossil fuel reserves. Among these new energy sources, solar energy stands out and attracts tremendous attention because of its environmental friendliness, stability, renewability, and universality [2-5]. Transparent and conductive electrode is the vital part in photoelectric conversion devices [6]. Indium tin oxide (ITO) is the most popular transparent and conductive electrode material at present [7]. However, the limited reserves of indium, a component in ITO has resulted in the high price of ITO electrode, restricting its wide application.

关键词：金属有机骨架薄膜器件高导电性高导电率透光性透明导电复合薄膜 MOF

电解铁碳填料强化絮体污泥造粒及微生物群落研究

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干旱区资源与环境 2024年第6期38卷 148-158页

作者：肖飞邢丹轲赵峰德王世民塔里木大学水利与建筑工程学院阿拉尔843300

好氧颗粒污泥的形成速率是影响废水处理的关键,研究强化好氧颗粒污泥的启动具有现实意义。采用外接电源的序批式反应器(SBR),高径比(R_(H/D))为7.5,内接活性污泥和铁碳填料(施加0.6kg),以人工合成的废水为进水,分析运行过程中污泥形态... 详细信息

好氧颗粒污泥的形成速率是影响废水处理的关键,研究强化好氧颗粒污泥的启动具有现实意义。采用外接电源的序批式反应器(SBR),高径比(R_(H/D))为7.5,内接活性污泥和铁碳填料(施加0.6kg),以人工合成的废水为进水,分析运行过程中污泥形态、污染物去除性能、微生物群落变化及耦合工艺的机制。结果表明:60d后,有黄色的葫芦形(瓢形、花生形、梨形)颗粒生成;对废水中COD、TP和NH_(4)^(+)-N的平均去除率分别为90.44%、84.46%和93.20%;优势菌属为拜叶林克氏菌属(Beijerinckia,10.45%,固氮菌)、糖酵母属(Saccharimonadales,5.27%,反硝化菌)、动胶菌属(Zoogloea,38.81%)和聚磷菌(Candidatus_Accumulibacter,2.13%),间歇电解会使微生物菌群结构进化;电解有助于脱除填料外层的沉积物,释放微量的碳粒,加快好氧颗粒污泥的启动。增设外电解耦合铁碳填料的运行策略,可以有效地强化废水的脱碳除磷效果,也实现了不同类型微生物的富集。

关键词：好氧颗粒污泥 SBR 铁碳填料电解废水处理

Rhodamine B doped silica nanoparticle labels for protein microarray detection

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Science China Chemistry 2010年第4期53卷 747-751页

作者： wang Ying1, LI ZhongHui1, ZHONG WenYing2, LI Hui2, XU danke1 & CHEN HongYuan1 1Key Laboratory of Analytical Chemistry for Life Science, Ministry of Education School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China 2Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China 1. Key Laboratory of Analytical Chemistry for Life Science Ministry of Education School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China2. Department of Analytical Chemistry China Pharmaceutical University Nanjing 210009 China

A core-shell Rhodamine B-doped SiO2 nanoparticle was synthesized and its fluorescent intensity was found to be 1000 times higher than that of individual Rhodamine B molecule. The doped nanoparticles were further conjugated with streptavidin and the resulting nanoparticles were used in the detection of reverse-phase protein microarrays, in which human IgG of various concentrations was first immobilized on aldehyde-modified glass slides and then biotinlyated goat anti human IgG as well as the labeled nanoparticles were sequentially conjugated. The calibration curve is linear over the range from 800 fg to 500 pg and the limit of detection is 100 fg, which is 8 times lower than that of streptavidin-labeled Cy3 fluorescent dyes. The dyedoped SiO2 nanoparticles show potentials for the protein array detection.

关键词： Rhodamine B SiO2 nanoparticles protein detection protein microarrays