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Nano Research 2024年第6期17卷 5087-5094页

作者： chenhao Xiao Yaxiao Guo Jiayuan sun Tao Guo Xinyuan Jia Shinuo Guo Guancheng Wu Yue sun Zhaoyang Yao Yi Liu State Key Laboratory of Separation Membranes and Membrane Processes School of ChemistryTiangong UniversityTianjin 300387China Key Laboratory of Functional Polymer Materials College of ChemistryNankai UniversityTianjin 300071China School of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023China

Electrocatalytic nitrate reduction to ammonia(NO3−RR)for removing nitrate from wastewater is a promising but challengeable technology that is increasingly ***,we developed an efficient CuO_(x)and CoCuO_(x)composed hybrid catalyst(CoCuO_(x)@CuO_(x)/copper foam(CF)),characteristic of distinctive shell-core nanowires grown on CF substrate with CuO_(x)core and CoCuO_(x)*** built-in electric field formed at the interface of the CoO/Cu_(2)O heterostructure promotes NO3−adsorption by modulating the charge distribution at the interface,which greatly improves the ammonia yield rate and Faradaic ***−0.2 V *** hydrogen electrode(RHE),CoCuO_(x)@CuO_(x)/CF achieves not only an excellent ammonia yield rate of up to 519.1μg·h^(−1)·cm^(−2)and Faradaic efficiency of 99.83%at 1 mM NO3−concentration,but also excellent mechanical *** study provides a novel pathway to design electrocatalyst for the removal of nitrate from dilute nitric acid solutions(≤2 mM).

关键词： CoCuO_(x)@CuO_(x)/copper foam(CF) shell-core nanowires heterostructure low concentration nitrate electroreduction to ammonia

Optimizing the power conversion processes in diluted donor/acceptor heterojunctions towards 19.4%efficiency all-polymer solar cells

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Journal of Energy Chemistry 2024年第9期96卷 345-350页

作者： Liang Wang Chen Chen Zirui Gan chenhao Liu Chuanhang Guo Weiyi Xia Wei sun Jingchao Cheng Yuandong sun Jing Zhou Zexin Chen Dan Liu Wei Li Tao Wang School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070HubeiChina School of Materials and Microelectronics Wuhan University of TechnologyWuhan 430070HubeiChina

All polymer solar cells(all-PSCs)promise mechanically-flexible and morphologically-stable organic photovoltaics and have aroused increased interests very ***,due to their disorderly conformation structures within the photoactive film,inefficient charge generation and carrier transport are observed which lead to inferior photovoltaic performance compared to smaller molecular acceptor-based ***,by diluting PM6 with a cutting-edge polymeric acceptor PY-IT and diluting PY-IT with PM6 or D18,donor-dominating or acceptor-dominating heterojunctions were *** X-ray and multiple spectrometer techniques reveal that the diluted heterojunctions receive increased structural order,translating to enhanced carrier mobility,improved exciton diffusion length,and suppressed non-radiative recombination loss during the power *** the results,the corresponding PM6+1%PY-IT/PY-IT+1%D18 and PM6+1%PY-IT/PY-IT+1%PM6 devices fabricated by layer-by-layer deposition received superior power conversion efficiency(PCE)of 19.4%and 18.8%respectively,along with enhanced operational lifetimes in air,outperforming the PCE of 17.5%in the PM6/PY-IT reference device.

关键词： All-polymer solar cells Power conversion efficiency Structural order Charge generation

An epidermal electrode based triboelectric walking energy harvester for wearable wireless sensing applications

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Science China(Technological Sciences) 2024年第3期67卷 949-957页

作者： CHANG ShiYuan LIU FuHai CHEN JinKai XIA LianBin ZHOU Hao JIANG JingYang DONG Kang ZHANG chenhao WU Yun CHEN Jin XUAN Weipeng sun LingLing JIN Hao DONG ShuRong LUO JiKui Ministry of Education Key Laboratory of RF Circuits and Systems Hangzhou Dianzi UniversityHangzhou 310018China Special Equipment College Hangzhou Vocational&Technical CollegeHangzhou 310018China College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 330027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China

Harvesting bio-kinetic energy using a triboelectric nanogenerator(TENG) is one of the promising routes to solve the sustainable energy supply problem for wearable electronics. However, additional materials, complex fabricating processes or specific mechanical structures are needed for existing TENGs to harvest bio-kinetic energy. Besides, they need to be tightly attached to the human body, which may result in detachment and malfunction under tense human motion. Herein, an intrinsic epidermal electrode-based TENG(E-TENG) is proposed to harvest human walking energy. The wearing shoes and ground are used as tribo-materials, and the human epidermis is used as the back electrode of the E-TENG. Compared with the traditional TENGs,the E-TENG does not need any additional tribo-materials and complex mechanical structures. Under optimal conditions, the voltage output of E-TENG can reach 914 V. E-TENG has been used as a self-powered warning sensor and pedometer sensor for demonstration. Furthermore, E-TENG based self-powered wireless sensor system has been developed using a newly designed micro energy electronic switch(MEES). Ambient ultraviolet intensity, temperature and humidity information can be monitored and then transmitted to mobile phone every 3.5 min, demonstrating great potential for widespread wearable applications.

关键词： triboelectric nanogenerator wearable wireless sensing self-powered

基于拓扑分析的疏松砂岩气藏储层结构和润湿特性评价新方法

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天然气工业 2023年第10期43卷 94-102页

作者：孙晨皓李军董赛亮邹嘉玲油气资源与工程全国重点实验室·中国石油大学(北京) 中国石油大学(北京)地球科学学院中国石油大学(北京)克拉玛依校区

疏松砂岩气藏气水分布和运移关系复杂,储集岩孔隙结构特征、原位润湿特征和气水界面性质制约了天然气储量的有效动用,其中储层孔隙结构和润湿性的准确评价对气藏治水与高效开发具有重要意义。为了弥补传统评价方法在精度和尺度上的不足... 详细信息

疏松砂岩气藏气水分布和运移关系复杂,储集岩孔隙结构特征、原位润湿特征和气水界面性质制约了天然气储量的有效动用,其中储层孔隙结构和润湿性的准确评价对气藏治水与高效开发具有重要意义。为了弥补传统评价方法在精度和尺度上的不足,结合持续拓扑分析和三维CT无损成像技术,精细表征了疏松砂岩气藏储层的孔隙结构,并应用拓扑几何学Gauss—Bonnet定理拓展了孔隙尺度润湿机理,创新了原位润湿性评价方法,系统研究了双相润湿特征对气水赋存分布规律的影响机制,最后提出了基于拓扑分析的疏松砂岩气藏储集岩特性评价新方法。研究结果表明:①持续拓扑分析结果全面且精细地表征了疏松砂岩储集空间的孔隙结构及其高孔隙度、高渗透率的物性特征,并验证了该方法的适用性;②基于拓扑几何学的润湿性评价新方法定量表征了储集岩的原位润湿性,且误差在6%以内,相较于传统方法,精度提高了约11%;③强水湿体系中气体普遍赋存于大孔,部分孤立的气泡赋存于小孔,油湿体系中地层水大多赋存于大孔且极易建立优势渗流通道,从而导致开发初期气藏产水现象的发生。结论认为,该新方法可快捷、准确地识别与表征岩石的孔隙结构与原位润湿性,对推动储层表征技术的进步,预测天然气在疏松砂岩气藏的运移能力及提高气藏的治水稳产效果具有重要的理论和工程意义。

关键词：疏松砂岩孔隙结构润湿性拓扑分析物性评价天然气藏界面特性多相渗流

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燃煤电厂脱硫废水中硒元素脱除技术研究进展

化工进展 2017年第4期36卷 1460-1469页

作者：张胜寒孙晨皓陈玉强华北电力大学(保定)环境科学与工程学院河北保定071000

燃煤电厂烟气经过湿法脱硫处理后产生的废水会富集硒元素,破坏周边生态环境并导致地方病的发生。本文对现有的国内外脱硒技术及其在脱硫废水中的应用进行了综述,对比分析了各种技术的优缺点及在脱硫废水处理领域的应用前景,统计了各种... 详细信息

燃煤电厂烟气经过湿法脱硫处理后产生的废水会富集硒元素,破坏周边生态环境并导致地方病的发生。本文对现有的国内外脱硒技术及其在脱硫废水中的应用进行了综述,对比分析了各种技术的优缺点及在脱硫废水处理领域的应用前景,统计了各种方法的相关文献、专利及案例情况。总结得出现有脱硒效率较高的技术主要包括化学还原法、膜分离技术、生物处理法、絮凝沉淀法、离子交换树脂及吸附法,缺点是易受到p H和水中其它阴离子的干扰。分析表明,絮凝+生物联合处理技术是最具有实用前景的工艺。就目前国内形势而言,脱硫废水硒排放标准缺失,相关技术研究不足,综合考虑实际运行情况及处理成本等因素,絮凝沉淀法会是符合国内现状的一种行之有效的脱硒方法。

关键词：燃煤电厂脱硫废水硒元素脱除

多源异构数据分布下的配电网风险状态多维评估方法

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高电压技术 2023年第6期49卷 2297-2307页

作者：陈春黄俊贤孙辰昊曹一家李勇长沙理工大学电气与信息工程学院长沙410114 湖南大学电气与信息工程学院长沙410082

配电网运行风险状态的全面评估对电力系统的安全可靠运行具有重要意义。为此,综合考虑外部环境条件和内部电气参数,定义配电线路健康度和重要度,提出一种多源异构数据分布下的配电网风险状态多维评估方法。首先,健康度由外部环境信息分... 详细信息

配电网运行风险状态的全面评估对电力系统的安全可靠运行具有重要意义。为此,综合考虑外部环境条件和内部电气参数,定义配电线路健康度和重要度,提出一种多源异构数据分布下的配电网风险状态多维评估方法。首先,健康度由外部环境信息分析,离散环境特征通过改进的关联规则挖掘(associationrulemining,ARM)方法处理,从而能深入探索和分析稀有因子,并通过部件关键度度量(component importance measure,CIM)优化元素相对权重计算方法,进一步提高诊断准确度,连续特征由分层概率模糊推理系统(hierarchical probabilistic fuzzy inference system,HPFIS)处理,分层结构的应用减少了运算复杂性,概率模糊能具体诊断连续特征中的罕见元素。其次,重要度由电气参数分析,利用二阶锥规划和启发式规则(second order cone programming and heuristic rules,SOCPHR)的配电网故障恢复模型求解故障失电后果,继而反映内部用户对供电可靠性需求的差异。基于以上,构建了ARM-CIM-HPFIS-SOCPHR(ACHS)评估模型,最后,通过对39节点和84节点实际配电系统进行仿真验证,描述了风险状态二维映射图。研究表明所提方法能有效评估配电网运行风险状态,便于检查和维护。

关键词：配电网风险状态多维度评估健康度重要度多源异构数据

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关于民主生活会“批评难”问题的思考

安徽警官职业学院学报 2017年第3期16卷 114-117页

作者：孙晨昊中国人民武装警察部队学院河北廊坊065000

当前,一些单位民主生活会批评与自我批评的质量不高,直接影响了党组织自身建设。针对"批评难"这一顽症的主要表现、产生原因及解决途径进行探析并提出对策思考。

关键词：民主生活会批评难路径举要

Histone demethylase Bcjarl regulating pathogenic development and virulence of the gray mold fungus Botrytis cinerea

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Histone demethylase Bcjarl regulating pathogenic development...

On-chip ultrafast stackable dielectric laser positron accelerator

中国植物病理学会2019年学术年会

作者： Hou Jie Feng Huiqiang Chang Haowu Liu Yue Li Guihua Yang Song sun chenhao Zhang Mingzhe Yuan Ye sun Jiao Zhang Hao Qin Qingming College of Plant Sciences Jilin University College of Forestry BeiHua University College of Computer Science and Technology Jilin University

Histone 3 Lysine 4（H3K4） demethylation is ubiquitous in organisms;however,the roles of H3K4 demethylase JARID1（Jar1）/KDM5 in the development and pathogenesis of fungal pathogens remain largely ***,we demonstrate that Jar1/KDM5 in Botrytis cinerea,the gray mold fungus,plays crucial roles in these *** BcJAR1 gene was deleted in *** wild-type strain B05.10 and was reintroduced into the BcJAR1 deletion mutant to generate the complemented strains via Agrobacterium tumefaciens-mediated transformation（ATMT） *** roles of BcJAR1 in the fungus development and pathogenesis were investigated using approaches of genetics,molecular/cell biology,pathogenicity and transcriptomic *** findings demonstrate that Bcjar1 is a H3K4 demethylase and is functionally equivalent to ScJhd2,the sole H3K4 demethylase in Saccharomyces cerevisiae that belongs to the ***1 regulates H3K4 me3 and H3K4 me2/me3 methylation levels during vegetative and pathogenic development,*** of BcJAR1 impairs conidiation,appressorium formation and stress adaptation;abolishes infection cushion（IC） formation and virulence,but promotes sclerotium production,of the △BcJar1 ***1 mediates reactive oxygen species（ROS） production and proper accumulation and assembly of Sep4,a virulence determinant that initiates infection structure（IFS） formation and host *** cAMP partially restored the ability of appressorium formation,but failed to rescue IC formation of the △Bcjar1 mutants,suggesting that cAMP can trigger processes that bypass the defect resulting from the absence of the histone ***1 orchestrates global expression of genes related to ROS production,stress response,carbohydrate transmembrane transport,secondary metabolites,etc.,which are required for conidiation,IFS formation,host penetration,and virulence of the gray mold *** work systematically elucidates BcJar1 functions and provides novel insights

关键词： Botrytis cinerea H3K4 demethylase JARID1(Jar1)/KDM5 stress adaptation infection structures development and pathogenesis septin protein Sep4 reactive oxygen species cAMP signaling

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Chinese Physics B 2024年第3期33卷 350-354页

作者：孙斌何阳帆潘晨浩樊思劼王度王少义赵宗清 Department of Plasma Physics and Fusion Engineering School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China National Key Laboratory of Plasma Physics Research Center of Laser FusionChina Academy of Engineering PhysicsMianyang 621900China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China State Key Laboratory of High Field Laser Physics and Chinese Academy of Sciences Center for Excellence in Ultra-Intense Laser Science Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Department of Engineering Physics Tsinghua UniversityBeijing 100084China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China

We present a first on-chip positron accelerator based on dielectric laser *** innovative approach significantly reduces the physical dimensions of the positron acceleration apparatus,enhancing its feasibility for diverse *** utilizing a stacked acceleration structure and far-infrared laser technology,we are able to achieve a seven-stage acceleration structure that surpasses the distance and energy gain of using the previous dielectric laser acceleration ***,we are able to compress the positron beam to an ultrafast sub-femtosecond scale during the acceleration process,compared with the traditional methods,the positron beam is compressed to a greater *** also demonstrate the robustness of the stacked acceleration structure through the successful acceleration of the positron beam.

关键词： dielectric laser accelerator positron accelerator high gradient accelerator inverse Cherenkov effect

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层状双金属氢氧化物形成机理的研究现状

化工进展 2018年第1期37卷 128-139页

作者：张胜寒陈玉强姜亚青孙晨皓华北电力大学(保定)环境科学与工程系河北保定071000

近年来,层状双金属氢氧化物(LDH)凭借特殊的层状结构、极强的可调控性能、优异的环境兼容性及显著的应用效果等特点,在环保、催化、储能、传感等领域得到广泛关注。国内外多数研究集中于LDH可控合成工艺的改进完善及LDH的应用探索,但迄... 详细信息

近年来,层状双金属氢氧化物(LDH)凭借特殊的层状结构、极强的可调控性能、优异的环境兼容性及显著的应用效果等特点,在环保、催化、储能、传感等领域得到广泛关注。国内外多数研究集中于LDH可控合成工艺的改进完善及LDH的应用探索,但迄今对制备LDH时涉及其组成结构形貌的变化过程,即其形成机理的关注较少,相关机制解释模糊,深入研究其形成过程对于可控制备具有独特形貌和特定组成的LDH及开发更深层次的应用具有至关重要的作用。本文介绍了LDH层板形成机理的3个主要研究方向,即以二价金属氢氧化物的存在为基础、以三价金属氢氧化物的存在为基础和拓扑相变机制,并分别进行了阐述辨析及对比分析,发现LDH层板的形成是一个极其复杂的过程,多种机制往往共同作用,总结认为固液及液液反应在初期成核阶段占据主导地位,各自作用程度及不同层板构筑机制产生的主导作用易受到外界环境因素影响,而更为普遍的LDH形成机制解释需要归纳总结更多LDH层板构筑的区别和规律,宏观和微观上探索形成过程的内在机理及科学本质,以期为LDH开发拓展提供理论基础。

关键词：层状双金属氢氧化物形成机理氢氧化物拓扑相变化学反应