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Wafer‑Scale Vertical 1D GaN Nanorods/2D MoS_(2)/PEDOT:PSS for Piezophototronic Effect‑Enhanced Self‑Powered Flexible Photodetectors

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Nano-Micro Letters 2025年第3期17卷 102-116页

作者： Xin Tang Hongsheng Jiang Zhengliang Lin Xuan wang Wenliang wang Guoqiang Li State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Department of Electronic Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China

van der Waals(vdW)heterostructures constructed by lowdimensional(0D,1D,and 2D)materials are emerging as one of the most appealing systems in next-generation flexible ***,hand-stacked vdW-type photodetectors are not compatible with large-areaarray fabrication and show unimpressive performance in self-powered ***,vertical 1D GaN nanorods arrays(NRAs)/2D MoS_(2)/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays *** as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W^(−1)and a high detectivity of 1.2×10^(11)Jones,as well as a fast response speed of 54/71μs,thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II ***,the strain-tunable photodetection performances of device have been ***,the device at−0.78%strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W^(−1),a detectivity of 2.6×10^(11)Jones,and response times of 40/45μs,which are superior to the state-of-the-art self-powered flexible *** work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection,which performs well in flexible sensors.

关键词： Vertical nanorod arrays van der Waals heterostructure Piezophototronic effect Self-powered photodetection Flexible sensors

基于Cohen-Sutherland编码理论的光栅信号数字细分算法研究

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现代制造技术与装备 2022年第10期58卷 5-8,12页

作者：王朝峰张玉林江海山东省机械设计研究院济南250031

基于测量光栅的工作机理,对光栅莫尔波形的数字分割技术进行较为深入的探讨。文章重点对计算机软件中的细分进行深入分析,建立了以Cohen-Sutherland编码为基础的分区划分方法,并对其进行了详细分析。通过对通用齿轮测试机的实际测试,证... 详细信息

基于测量光栅的工作机理,对光栅莫尔波形的数字分割技术进行较为深入的探讨。文章重点对计算机软件中的细分进行深入分析,建立了以Cohen-Sutherland编码为基础的分区划分方法,并对其进行了详细分析。通过对通用齿轮测试机的实际测试,证明了这种细分方法可以达到800倍的细分,50格/毫米的精度可以达到0.025μm以上,相对于硬件产品的细分精度要精确1~2倍。该方法具有很强的灵活性,能够根据实际需求和计算机的配置情况,适当改进细分的精确性。

关键词：光栅信号数字细分编码算法

Silk damping in scalar-induced gravitational waves: a novel probe for new physics

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 79-85页

作者： Yan-Heng Yu Sai wang Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences

Silk damping is well known in the study of cosmic microwave background（CMB） and accounts for suppression of the angular power spectrum of CMB on large angular multipoles. In this article, we study the effect of Silk damping on the scalar-induced gravitational waves（SIGWs）. Resulting from the dissipation of cosmic fluid, the Silk damping notably suppresses the energydensity spectrum of SIGWs on scales comparable to a diffusion scale at the decoupling time of weakly-interacting particles. The effect offers a novel observable for probing the underlying particle interaction, especially for those mediated by heavy gauge bosons beyond the standard model of particles. We anticipate that pulsar timing arrays are sensitive to gauge bosons with mass ～10～3-10～4 GeV, while space-and ground-based interferometers to those with mass ～10～7-1012GeV, leading to essential complements to on-going and future experiments of high-energy physics.

关键词： scalar-induced gravitational waves Silk damping new physics

临空经济区产业选择研究——以重庆渝北区为例

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科技和产业 2022年第4期22卷 194-198页

作者：杨远源王超峰文亚淼中国民用航空飞行学院机场学院四川广汉618307 民航局第二研究所成都610041 成都民航空管科技发展有限公司成都610041

临空经济区在区域发展中扮演着增长极的角色,带动各类高附加值临空产业集聚发展,推动区域的产业结构升级。基于区域产业统计数据对渝北区产业进行分析,发现现区域中较少产业有空间集聚的特征,部分临空产业综合效益较低,区域产链的协同... 详细信息

临空经济区在区域发展中扮演着增长极的角色,带动各类高附加值临空产业集聚发展,推动区域的产业结构升级。基于区域产业统计数据对渝北区产业进行分析,发现现区域中较少产业有空间集聚的特征,部分临空产业综合效益较低,区域产链的协同性有待进一步提升。通过构建渝北区临空产业选择的指标体系,运用主成分分析的方法,得出渝北区应优先选择发展的临空产业。

关键词：临空产业区位熵主成分分析

Mechanism of inflammatory response and therapeutic effects of stem cells in ischemic stroke:current evidence and future perspectives

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Neural Regeneration Research 2025年第1期20卷 67-81页

作者： Yubo wang Tingli Yuan Tianjie Lyu Ling Zhang Meng wang Zhiying He Yongjun wang Zixiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Shanghai Engineering Research Center of Stem Cells Translational Medicine ShanghaiChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Institute for Regenerative Medicine Shanghai East HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghaiChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina

Ischemic stroke is a leading cause of death and disability worldwide,with an increasing trend and tendency for onset at a younger ***,in particular,bears a high burden of stroke *** recent years,the inflammatory response after stroke has become a research hotspot:understanding the role of inflammatory response in tissue damage and repair following ischemic stroke is an important direction for its *** review summarizes several major cells involved in the inflammatory response following ischemic stroke,including microglia,neutrophils,monocytes,lymphocytes,and ***,we have also highlighted the recent progress in various treatments for ischemic stroke,particularly in the field of stem cell ***,understanding the complex interactions between inflammation and ischemic stroke can provide valuable insights for developing treatment strategies and improving patient *** cell therapy may potentially become an important component of ischemic stroke treatment.

关键词： cell therapy immune cell inflammatory ischemic stroke stem cell

Assessing the corrosion protection property of coatings loaded with corrosion inhibitors using the real-time atmospheric corrosion monitoring technique

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 119-126页

作者： Xiaoxue wang Lulu Jin Jinke wang Rongqiao wang Xiuchun Liu Kai Gao Jingli Sun Yong Yuan Lingwei Ma Hongchang Qian Dawei Zhang School of Energy and Power Engineering Beihang UniversityBeijing 100191China Beijing Institute of Space Long March Vehicle Beijing 100076China National Materials Corrosion and Protection Data Center University of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Shanghai Spaceflight Precision Machinery Institute Shanghai 201600China

The atmospheric corrosion monitoring(ACM)technique has been widely employed to track the real-time corrosion behavior of metal ***,limited studies have applied ACM to the corrosion protection properties of organic *** study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors,both applied on ACM sensors,to observe their corrosion protection properties over *** with artificial damage via scratches were exposed to immersion and alternating dry and wet environments,which allowed for monitoring galvanic corrosion currents in *** the corrosion tests,the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy *** trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface *** alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic *** with the blank epoxy coating,the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.

关键词： atmospheric corrosion monitoring technology corrosion inhibitor coating carbon steel corrosion protection

南美桑托斯盆地深水区古拉绍-1井油气勘探发现及意义

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石油学报 2024年第2期45卷 339-347页

作者：何文渊黄先雄王红平汪望泉范国章丁梁波赵俊峰朱晓辉张勇刚庞旭李伟强左国平杨柳王朝锋中国石油国际勘探开发有限公司北京100034 中国石油杭州地质研究院浙江杭州310023

2021年,南美桑托斯盆地深水区风险探井古拉绍-1井获得重大原油发现,地层测试获得日产千吨高产油流,确定了巴西阿拉姆区块超大型油藏的勘探潜力,证实其具有规模商业开发前景。为了更好认识这一重大突破,在区域地质背景分析的基础上,结合... 详细信息

2021年,南美桑托斯盆地深水区风险探井古拉绍-1井获得重大原油发现,地层测试获得日产千吨高产油流,确定了巴西阿拉姆区块超大型油藏的勘探潜力,证实其具有规模商业开发前景。为了更好认识这一重大突破,在区域地质背景分析的基础上,结合油气勘探历程,对古拉绍-1井的构造-沉积背景、油气成藏条件以及油藏特点进行了详细分析。研究结果表明:①阿拉姆区块位于桑托斯盆地阿拉姆—乌拉普鲁(阿—乌)隆起带,与卢拉—苏格(卢—苏)隆起带的卢拉油田隔"湖"相望,具有相似的构造沉积背景;盆地中央大型古隆起为碳酸盐岩沉积提供了有利条件。②阿拉姆区块邻近主力生烃凹陷,油源充足。③继承性古隆起控制了湖相碳酸盐岩储层连片分布。④盐岩、盐上灰泥岩和泥岩对油藏形成了多重有效封盖。⑤盐下背斜圈闭规模大,为有利油气指向区。⑥古拉绍-1井油藏属于低CO_(2)、低H_(2)S中质油超压油藏。古拉绍-1井的成功钻探是巴西桑托斯盆地盐下核心区向外围区拓展取得的重大突破,是中国石油天然气集团有限公司(中国石油)坚持海外风险勘探的重大成功,是中国石油海外深水油气合作发展的又一成功实践,对巴西桑托斯盆地盐下油气勘探工作以及中国石油深水油气业务发展战略具有指导意义。

关键词：桑托斯盆地深水古拉绍-1井超大型油藏湖相碳酸盐岩

AlN含量对Ti(C,N)基金属陶瓷组织和性能的影响

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机械工程材料 2021年第3期45卷 6-10页

作者：王超锋陈义坤刘华臣杜学铭姚振华武汉理工大学材料科学与工程学院武汉430070 湖北中烟工业有限责任公司新型烟草制品工程中心武汉430040

研究了AlN添加量(0,1%,2%,3%,质量分数)对Ti(C,N)基金属陶瓷硬度、抗弯强度以及抗氧化性能的影响。结果表明:不同AlN添加量下的金属陶瓷主要由Ti(C,N)、Ni3Al和镍相组成;随着AlN添加量增加,金属陶瓷的硬度增大,抗弯强度先增大后减小,Al... 详细信息

研究了AlN添加量(0,1%,2%,3%,质量分数)对Ti(C,N)基金属陶瓷硬度、抗弯强度以及抗氧化性能的影响。结果表明:不同AlN添加量下的金属陶瓷主要由Ti(C,N)、Ni3Al和镍相组成;随着AlN添加量增加,金属陶瓷的硬度增大,抗弯强度先增大后减小,AlN添加量为2%时达到峰值;与未添加AlN相比,添加2%AlN金属陶瓷的氧化质量增加较慢,氧化膜结构更致密,抗氧化性能更好。

关键词： AlN添加 Ti(C N)基金属陶瓷硬度抗弯强度抗氧化性能

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang Wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model