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Nano Research 2025年第1期18卷 164-172页

作者： Yuanlin Fu xiaoting yang Ya Yu Kang Zhou Xiaoyang Ye Aoxiang Zhang Xiaojiao Hou Bingbing Chen Fuqiang Fan Yuhang Li Yu Fu Department of Chemistry College of SciencesNortheastern UniversityShenyang 110819China Department of Physical Education Shen Yang Institute of Science and TechnologyShenyang 110167China Sungrow Power Supply Co. Ltd.Hefei 230088China

The electrochemical nitrate reduction reaction(eNO_(3)^(-)RR)is considered an effective approach for converting nitrate-containing wastewater to *** adsorption and activation of NO_(3)^(-)is the critical step for many materials and the high energy barrier inhibits the continuation of the reduction *** Co nanoparticles encapsulated in the carbon layer we prepared spontaneously react with NO_(3)^(-)and the resulting Co^(2+)is then reduced by electroreduction to Co^(0),which circulates *** resulted in overcoming the energy input required for NO_(3)^(-)adsorption and conversion,thereby increasing the catalytic *** the same time,the morphology of the catalyst reconstructed from a dodecahedron to an interwoven nanosheet structure and the increased surface area also gives it better *** obtained Co(OH)_(2)@Co-N-C has an excellent eNO_(3)^(-)RR of 2774.7μg·h^(-1)·cm^(-2)with a Faraday efficiency of 81.4%in neutral *** the same time,the material-modified electrode can run stably for more than 100 *** work provides a new idea for the design of Co-based catalysts for eNO_(3)^(-)RR.

关键词： electrochemical nitrate reduction reaction Co-based catalyst dynamic evolution of Co species morphological reconstruction

Anomalous magnetic property and broadband photodetection in ultrathin non-layered manganese selenide semiconductor

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Nano Research 2024年第9期17卷 8578-8584页

作者： Ye Zhao Ruilong yang Ke yang Jiarui Dou xiaoting yang Jinzhong Guo Guowei Zhou Xiaohong Xu School of Chemistry and Materials Science Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of EducationShanxi Normal UniversityTaiyuan 030006China Research Institute of Materials Science Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and TechonologyShanxi Normal UniversityTaiyuan 030006China

Two-dimensional(2D)semiconductors with intrinsic ferromagnetism are highly desirable for potential applications in nextgeneration spintronic and optoelectronic ***,controllable synthesis of intrinsic 2D magnetic semiconductor on a substrate is still a challenging ***,large-area 2D non-layered rock salt(α-phase)MnSe nanosheets were grown on mica substrates,with the thickness changing from 54.2 to 0.9 nm(one unit cell),by chemical vapour *** X-ray diffraction,Raman spectroscopy,transmission electron microscopy,and X-ray photoelectron spectroscopy measurements confirmed that the resulting 2Dα-MnSe nanosheets were obtained as high-quality single *** magnetic hysteresis loops and synchrotron X-ray measurements directly indicated the anomalous magnetic properties inα-MnSe *** analysis of the reasons for magnetic property revealed that the low-temperature phase transition,small number of stacking differences in crystals,and surface weak oxidation in(111)-orientedα-MnSe were the main ***,α-MnSe nanosheets exhibited broadband photoresponse from 457 to 671 nm with an outstanding detectivity and responsivity *** study presents the detailed growth process of ultrathin 2D magnetic semiconductorα-MnSe,and its outstanding magnetic properties and broadband photodetection,which provide an excellent platform for magneto-optical and magneto-optoelectronic research.

关键词： two-dimensional material anomalous magnetism broadband photodetection α-phase MnSe non-layered crystal

Lira-YOLO: a lightweight model for ship detection in radar images

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Journal of Systems Engineering and Electronics 2020年第5期31卷 950-956页

作者： ZHOU Long WEI Suyuan CUI Zhongma FANG Jiaqi yang xiaoting DING Wei Beijing Institute of Remote Sensing Equipment Beijing 100854China Xi’an High-tech Research Institute Xi’an 710025China School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu 611731China

For the detection of marine ship objects in radar images, large-scale networks based on deep learning are difficult to be deployed on existing radar-equipped devices. This paper proposes a lightweight convolutional neural network, LiraNet, which combines the idea of dense connections, residual connections and group convolution, including stem blocks and extractor *** designed stem block uses a series of small convolutions to extract the input image features, and the extractor network adopts the designed two-way dense connection module, which further reduces the network operation complexity. Mounting LiraNet on the object detection framework Darknet, this paper proposes Lira-you only look once(Lira-YOLO), a lightweight model for ship detection in radar images, which can easily be deployed on the mobile devices. Lira-YOLO's prediction module uses a two-layer YOLO prediction layer and adds a residual module for better feature delivery. At the same time, in order to fully verify the performance of the model, mini-RD, a lightweight distance Doppler domain radar images dataset, is constructed. Experiments show that the network complexity of Lira-YOLO is low, being only 2.980 Bflops, and the parameter quantity is smaller, which is only 4.3 MB. The mean average precision(mAP) indicators on the mini-RD and SAR ship detection dataset(SSDD) reach 83.21% and 85.46%, respectively,which is comparable to the tiny-YOLOv3. Lira-YOLO has achieved a good detection accuracy with less memory and computational cost.

关键词： lightweight radar images ship detection you only look once(YOLO)

Quantum dot microsphere laser levitated in the air

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Nano Research 2024年第12期17卷 10525-10528页

作者： Guihai Li Ruixiang Liu Lei Wang Jianshun Li Jingchun Li xiaoting yang Huaibin Shen Fengjia Fan CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China Key Laboratory for Special Functional Materials of Ministry of Education National&Local Joint Engineering Research Center for High-efficiency Display and Lighting TechnologyHenan UniversityKaifeng 475004China

Laser levitated in the air may open new application scenarios,such as quantum information processing,three-dimensional display,and ultra-sensitive gas sensing et ***,the solid-state levitated laser is yet to be ***,we develop a nebulization method to fabricate colloidal quantum dots self-assembled microspheres,which can be levitated by photophoresis provided by continuous wave lasers and photoexcited by pulsed *** levitated microspheres can serve as high-quality gain media and whispering gallery mode cavities simultaneously,allowing us to demonstrate the levitated solidstate laser for the first time.

关键词： colloidal quantum dot laser self-assembly whispering gallery mode photophoresis

The 2<i>D</i>MHD Systems with Vertical Dissipation and Vertical Dissipation Magnetic Diffusion

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American Journal of Computational Mathematics 2019年第2期9卷 81-96页

作者： xiaoting yang Department of Mathematics Jinan University Guangzhou China

In this paper, we study the global regularity of the classical solution of the 2D incompressible magnetohydrodynamic equation with vertical dissipation and vertical magnetic dissipation. We show that any solution of the second component (u2, b2) has a global L2r -bound, where r satisfies and the boundary does not grow faster than??as r increases.

关键词： MHD Equation Global Regularity Vertical Dissipation

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地理学视角下中外基础设施研究的比较与反思

地理学报 2023年第12期78卷 2958-2972页

作者：安宁杨宇杨晓婷华南师范大学地理科学学院亚洲地理研究中心广州510631 中国科学院地理科学与资源研究所中国科学院区域可持续发展分析与模拟重点实验室北京100101 中国科学院大学资源与环境学院北京100049 粤港澳大湾区战略研究院广州510070 华东师范大学地理科学学院上海200241

基础设施建设集中反映了人类改造和利用环境的过程,涉及复杂的人地互动关系。随着“一带一路”倡议持续推进,中国跨境基础设施活动在不同尺度空间范围内开始显著增长,引发了学者对相关议题的密切关注。本文比较了中外地理学研究对基础... 详细信息

基础设施建设集中反映了人类改造和利用环境的过程,涉及复杂的人地互动关系。随着“一带一路”倡议持续推进,中国跨境基础设施活动在不同尺度空间范围内开始显著增长,引发了学者对相关议题的密切关注。本文比较了中外地理学研究对基础设施相关议题的关注,反思了地理学视角下基础设施研究的重点议题,认为基础设施映射了人类改造和利用自然目的与方式的变化。当前国内地理学研究更注重基础设施的经济功能属性,而国外更关注基础设施所涉及人地关系中“人”与“地”的异质性。本文认为这种学术边界是由社会发展阶段对基础设施的不同诉求所导致的,其本质上是一脉相承的。在对国内外地理学有关基础设施研究差异进行对比的基础上,本文从更加动态、多维、系统以及关系化的本体观讨论了基础设施如何对人地关系进行校正和调节,并探讨了这一系统基础设施本体认知背景下基础设施涉及的核心地理学议题。从学理上来说,本文整合了地理学中国内外基础设施研究的本体差异,为国内外地理学研究进行有效的对话构建了一个统一的概念框架和本体基础。从应用价值来看,在中国“走出去”战略基础设施先行的背景下,本文对中国海外基础设施建设活动也具有借鉴价值。

关键词：基础设施地理学人类中心主义超人类地理学 “一带一路”倡议

On the Rule of Law Path for Inclusive Education to Empower Education Assistance for Persons with Disabilities

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The Journal of Human Rights 2024年第4期23卷 922-950页

作者： WANG Sufen yang xiaoting QIAN Chuijun Law School of Liaoning University 不详

Inclusive education is the mainstream of developing education for persons with disabilities *** advocates the recognition and protection of the right of persons with disabilities to receive inclusive education in mainstream *** the perspective of inclusive education,the educational assistance system for persons with disabilities represents a theoretical innovation in traditional educational support methods,playing a crucial role in integrating persons with disabilities into society,reversing their disadvantaged status,and maintaining educational *** present,China's legal system for inclusive education assistance for persons with disabilities needs improvement,and faces several obstacles,including conceptual“limited capacity”,“monotonous”subjects,“crowding-out”obstacles and supervision“absence”*** is urgent to begin with the transformation of the rule of law concept,clarify the legal positioning of multiple responsibility subjects,achieve mutual reinforcement of education law and education aid legislation,establish a supervision system for inclusive education assistance,and improve the legal framework for educational assistance for persons with *** will ensure that persons with disabilities can successfully realize their right to education,share in the benefits of social development,and ultimately contribute to achieving common prosperity.

关键词： inclusive education the right to education of persons with disabilities education assistance multiple responsible entities

跨境教育基础设施与中国城市空间的重构--基于粤港澳大湾区的案例分析

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地理科学进展 2022年第9期41卷 1731-1742页

作者：杨晓婷张博安宁华南师范大学地理科学学院亚洲地理研究中心广州510631 广州大学地理科学与遥感学院华南人文地理与城市发展研究中心广州510006 广东省城市与移民研究中心广州510006

跨境教育基础设施对不同尺度空间的修复作用已成为学界的关注热点之一,但大部分研究仍缺乏对于中国经验案例的探讨。为进一步发挥跨境教育基础设施在城市和区域建设中的积极作用,推动中西方有关这一新兴现象的理论和实践对话,论文以粤... 详细信息

跨境教育基础设施对不同尺度空间的修复作用已成为学界的关注热点之一,但大部分研究仍缺乏对于中国经验案例的探讨。为进一步发挥跨境教育基础设施在城市和区域建设中的积极作用,推动中西方有关这一新兴现象的理论和实践对话,论文以粤港澳大湾区为例,探讨了跨境教育基础设施在中国的发展情况及其空间效应。基于多案例观察发现,跨境教育基础设施对城市空间的影响主要体现在物质性、象征性和情境性3个维度。研究发现,这些跨境办学机构只能被视为一种教育飞地,对城市空间所产生的物质影响仅仅是体现在对城市基础设施的改善和周边社区的绅士化等方面,对于城市深层的发展格局和肌理重构缺乏实质性帮助。相较于对城市的物质性修复,这些跨境教育机构对于城市空间的象征性修复作用显然更加明显,对城市品牌营建、城市发展愿景的扶持以及城市文化软实力提升都有比较明显的作用。从情境性来看,跨境教育基础设施除了在校园尺度上提供了独特的境外学习情景模式之外,在与迁出地的联系以及与城市和社区尺度上的社会文化联系等情境性交流方面都比较缺乏。研究提供了对非新自由主义社会语境下跨境教育基础设施流动所产生的(城市)空间效应的反思,对现有的有关这一新兴现象的理论和概念分析框架进行了补充和对话,对跨境办学及其政策也提供了非教育学层面的反思,对于面向教育的区域与城市发展决策也具有参考价值。

关键词：教育基础设施城市地理跨境流动空间重构粤港澳大湾区

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基于改进NAD方法的频率域声波逆时偏移

地球物理学报 2022年第3期65卷 1071-1085页

作者：郎超刘少林杨晓婷徐锡伟北京信息科技大学理学院北京100192 应急管理部国家自然灾害防治研究院北京100085

逆时偏移成像具有高分辨率的特点,在频率域实施能提升偏移成像效率.数值求解波动方程是逆时偏移成像的关键环节,数值算法的优劣直接决定着偏移过程的计算效率与成像结果的质量.本文在频率域近似解析离散化(NAD)方法的基础上通过优化网... 详细信息

逆时偏移成像具有高分辨率的特点,在频率域实施能提升偏移成像效率.数值求解波动方程是逆时偏移成像的关键环节,数值算法的优劣直接决定着偏移过程的计算效率与成像结果的质量.本文在频率域近似解析离散化(NAD)方法的基础上通过优化网格差分模板系数构造改进NAD方法,保证数值离散精度的同时可缓解阻抗矩阵的病态程度,以此提高频率域正演模拟的计算效率并将该方法运用于频率域声波逆时偏移.通过分别对凹陷模型、Sigsbee2B模型以及Marmousi模型进行偏移成像且与四阶标准NAD方法和四阶普通有限差分方法进行比较,改进NAD方法在压制数值频散与提高成像效率方面的优势得到了充分体现.

关键词：频率域逆时偏移近似解析离散化阻抗矩阵数值频散

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考虑CCHP的工业大用户综合能源系统扩展规划

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电力建设 2021年第2期42卷 107-115页

作者：杨效婷舒隽华北电力大学电气与电子工程学院北京市102206

工业大用户是一个多能源综合供给系统,传统的工业大用户综合能源系统(integrated energy system,IES)规划忽略了多种能源的参与。计及冷热电联供系统(combined cooling, heating and power,CCHP),考虑多能梯级利用及其与可转移生产任务... 详细信息

工业大用户是一个多能源综合供给系统,传统的工业大用户综合能源系统(integrated energy system,IES)规划忽略了多种能源的参与。计及冷热电联供系统(combined cooling, heating and power,CCHP),考虑多能梯级利用及其与可转移生产任务的耦合关系,文章建立了工业大用户综合能源系统扩展规划模型。目标函数为系统综合成本最低,其中包括与售电公司交互成本、大用户自发电成本及生产任务转移成本,模型中考虑了多能耦合平衡约束、发电设备技术约束、可转移生产任务负荷调度约束等约束条件,优化CCHP的容量配置。该模型是一个混合整数线性规划(mixed integer linear programming,MILP)模型。最后通过算例对所提模型进行验证,结果表明在工业大用户综合能源系统规划中考虑CCHP能够提高用户用能的灵活性,有效降低综合成本。

关键词：冷热电联供系统(CCHP) 工业大用户综合能源系统(IES) 混合整数线性规划(MILP)