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Rare Metals 2023年第1期42卷 146-154页

作者： Yun-Feng Wu ji-wei ma Yun-Hui Huang School of materials Science and Engineering Tongji UniversityShanghai201804China School of materials Science and Engineering Huazhong University of Science and TechnologyWuhan430074China

Designing highly active and durable electrocatalysts towards oxygen reduction reaction(ORR)plays a paramount importance for proton exchange membrane fuel ***-based binary alloys Pt-M(M=3d-transition metals)possessing excellent electronic and geometric properties have received increasing interests as highly active ***,we report a series of Pt_(x)Co/C(x=1,2,3)catalysts by a facile one-pot soft-chemistry *** the acidic conditions,the mass activities of PtCo/C,Pt_(2)Co/C and Pt_(3)Co/C are 0.526,0.462 and 0.441 A·mgPt^(-1),which are 2.60,2.31 and 2.22 times higher than that of Pt/C(0.200 A·mgPt^(-1)),*** specific activities of PtCo/C,Pt_(2)Co/C and Pt_(3)Co/C are 706.59,679.41 and 801.83μA·cm^(-2),which are accordingly 2.89,2.76 and 3.28 times higher than that of Pt/C(244.75μA·cm^(-2)).Notably,Pt_(3)Co/C shows a remarkable *** 5000 cycles of the accelerated durability testing,the mass activity and specific activity of Pt_(3)Co/C catalyst are 2.47 and 3.80 times higher than that of the commercial Pt/C,*** improved ORR activity and durability can be ascribed to the synergistic interaction between Pt and Co.

关键词： Proton exchange membrane fuel cells(PEMFCs) Pt_(x)Co/C catalysts Synergetic effect Oxygen reduction reaction(ORR) One-pot synthesis

High Energy Proton-Proton Elastic Scattering in the Pomeron Exchange Model

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Communications in Theoretical Physics 2002年第7期38卷 65-67页

作者： HU Zhao-Hui ZHANG jian ZHOU Li-Juan LIU ji-Feng ma wei-Xing Department of Information and Computing Science Guangxi University of Technology Liuzhou 545006 China Department of Physics Guangxi Normal University Guilin 541004 China Department of Information and Computing Science Guangxi University of Technology Liuzhou 545006 China Department of Physics Guangxi Normal University Guilin 541004 China Department of Information and Computing Science Guangxi University of Technology Liuzhou 545006 China Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100039 China Institute of Theoretical Physics the Chinese Academy of Scie

We study high energy proton-proton elastic scattering in the framework of Pomeron exchange model. The cross section of the process are calculated without any free parameters. Our finding is that Pomeron exchange theory gives perfect fits to total cross section at the energy of√s higher than 10 GeV and to differential cross section at the momentum transfer [t] less than 1.5 GeV2. For total cross section at lower energy √s ＜ 10 GeV and differential cross section at larger momentum transfer region of |t| ＞ 1.5 GeV2, the Pomeron exchange theory needs to be improved.

关键词： proton-proton elastic scattering, Pomeron exchange, cross section

A novel method to improve spatial resolution of acousto-optic deflector

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Optoelectronics Letters 2006年第1期2卷 34-36页

作者： WEN Tao ZHUANG Zhao-wen wei ji-bo ma Dong-tang College of Electronic Science and Engineering National University of Defense Technology Changsha 410073 China

In this paper, a novel method of laser beam deflecting is introduced to improve the spatial resolution of an acoustic-optic deflector (AOD). We use double AOD (DAOD) to control laser beam. Compared with single AOD, the double AOD can improve speed and precision of target tracking and pointing significantly. Finally, a method of calculating the static and dynamic number of resolvable points (NRP) is provided, and it is supported by the experimental data excellently.

关键词：光学偏转仪空间分辨率激光束靶点轨迹

Decreased levels of phosphorylated synuclein in plasma are correlated with poststroke cognitive impairment

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Neural Regeneration Research 2025年第9期20卷 2598-2610页

作者： Yi Wang Yuning Li Yakun Gu wei ma Yuying Guan Mengyuan Guo Qianqian Shao Xunming ji jia Liu Department of Clinical Laboratory Beijing Bo’ai HospitalChina Rehabilitation Research CenterCapital Medical UniversityBeijingChina Beijing Institute of Brain Disorders Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Advanced Innovation Center for Big Data-based Precision MedicineCapital Medical UniversityBeijingChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina

Poststro ke cognitive impairment is a major secondary effect of ischemic stroke in many patients;however,few options are available for the early diagnosis and treatment of this *** aims of this study were to(1)determine the specific relationship between hypoxic andα-synuclein during the occur of poststroke cognitive impairment and(2)assess whether the serum phosphorylatedα-synuclein level can be used as a biomarker for poststro ke cognitive *** found that the phosphorylatedα-synuclein level was significantly increased and showed pathological aggregation around the cerebral infa rct area in a mouse model of ischemic *** addition,neuronalα-synuclein phosphorylation and aggregation were observed in the brain tissue of mice subjected to chronic hypoxia,suggesting that hypoxia is the underlying cause ofα-synuclein-mediated pathology in the brains of mice with ischemic *** phosphorylatedα-synuclein levels in patients with ischemic stroke were significantly lower than those in healt hy subjects,and were positively correlated with cognition levels in patients with ischemic ***,a decrease in serum high-density lipoprotein levels in stroke patie nts was significantly correlated with a decrease in phosphorylatedα-synuclein *** ischemic stroke mice did not show significant cognitive impairment or disrupted lipid metabolism 14 days after injury,some of them exhibited decreased cognitive function and reduced phosphorylatedα-synuclein *** together,our results suggest that serum phosphorylatedα-synuclein is a potential biomarker for poststroke cognitive impairment.

关键词： biomarker high-density lipoprotein ischemic stroke phosphorylatedα-synuclein poststroke cognitive impairment

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简历背后的故事

科学新闻 2021年第2期23卷 60-61页

作者： wei ji ma 倪伟波纽约大学

根据我的简历,你可能会认为我成为终身教职的道路非常顺利:硕士学位,博士学位,两个博士后,教授职位。然而,真实的故事却更加曲折。在攻读物理专业研究生期间,我非常茫然,以至于为了逃避,我花在网络象棋、政治活动和志愿服务上的时间要...

根据我的简历,你可能会认为我成为终身教职的道路非常顺利:硕士学位,博士学位,两个博士后,教授职位。然而,真实的故事却更加曲折。在攻读物理专业研究生期间,我非常茫然,以至于为了逃避,我花在网络象棋、政治活动和志愿服务上的时间要比花在课业上的时间多。在获得博士学位后,我几乎离开了科学领域,去从事商业咨询或政治工作。最后我留下来了,但我换了专业。我和我的第一位博士后导师没有发表过一篇论文。在我第二次做博士后的时候,我总是觉得自己不如一个似乎想出所有好点子的同事。在那段时间里,我经常认为自己是唯一一个挣扎的人,而其他人都一帆风顺。

关键词：

Interaction of major facilitator superfamily domain containing 2A with the blood-brain barrier

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Neural Regeneration Research 2025年第8期20卷 2133-2152页

作者： Yilun ma Taiwei Dong Fei Luan Juanjuan Yang Feng Miao Peifeng wei College of Pharmacy and First Clinical Medical College Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina National Drug Clinical Trial Agency The Second Affiliated Hospital of Shaanxi University of Chinese Medicine/Xixian New District Central HospitalXi′anShaanxi ProvinceChina

The functional and structural integrity of the blood-brain barrier is crucial in maintaining homeostasis in the brain microenvironment;however,the molecular mechanisms underlying the formation and function of the blood-brain barrier remain poorly *** major facilitator superfamily domain containing 2A has been identified as a key regulator of blood-brain barrier *** plays a critical role in promoting and maintaining the formation and functional stability of the blood-brain barrier,in addition to the transport of lipids,such as docosahexaenoic acid,across the blood-brain ***,an increasing number of studies have suggested that major facilitator superfamily domain containing 2A is involved in the molecular mechanisms of blood-brain barrier dysfunction in a variety of neurological diseases;however,little is known regarding the mechanisms by which major facilitator superfamily domain containing 2A affects the blood-brain *** paper provides a comprehensive and systematic review of the close relationship between major facilitator superfamily domain containing 2A proteins and the blood-brain barrier,including their basic structures and functions,cross-linking between major facilitator superfamily domain containing 2A and the blood-brain barrier,and the in-depth studies on lipid transport and the regulation of blood-brain barrier *** comprehensive systematic review contributes to an in-depth understanding of the important role of major facilitator superfamily domain containing 2A proteins in maintaining the structure and function of the blood-brain barrier and the research progress to *** will not only help to elucidate the pathogenesis of neurological diseases,improve the accuracy of laboratory diagnosis,and optimize clinical treatment strategies,but it may also play an important role in prognostic *** addition,the effects of major facilitator superfamily domain containing 2A on blood-brain barrier lea

关键词： blood-brain barrier(BBB) caveolin-1 central nervous system docosahexaenoic acid endothelial cells lysophosphatidylcholine major facilitator superfamily domain containing 2A(MFSD2A) transcytosis

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and materials 2025年第2期32卷 498-503页

作者： Liang Chu Haoyu Shen Hudie wei Hongyu Chen Guoqiang ma Wensheng Yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

用于促进碱性介质中析氢反应动力学的异质结构电催化剂的合理设计

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电化学（中英文） 2024年第1期30卷 12-35页

作者：马海斌周晓延李嘉艺程洪飞马吉伟上海市金属功能材料研发与应用重点实验室同济大学材料科学与工程学院车用新能源研究所上海201804

在碱性介质中,由于电极材料的较高的稳定性,电催化析氢反应(HER)具有实现大规模制氢的巨大潜力。然而,即使对于最突出的铂催化剂,HER在碱性介质中的反应动力学也比在酸性介质中慢2–3个数量级,这是由于碱性环境下质子的浓度较低。异质... 详细信息

在碱性介质中,由于电极材料的较高的稳定性,电催化析氢反应(HER)具有实现大规模制氢的巨大潜力。然而,即使对于最突出的铂催化剂,HER在碱性介质中的反应动力学也比在酸性介质中慢2–3个数量级,这是由于碱性环境下质子的浓度较低。异质结构催化剂具有多种结构优势,研究表明,构建异质结构电催化剂是促进碱性HER动力学的有效策略。协同效应是异质结构的一个独特特征,这意味着一个功能活性位点作为水解离的促进剂,另一个活性位点则负责适度的氢吸附,从而协同提高HER催化性能。此外,异质结构中的每个构建模块都是可调节的,为构建最佳催化剂提供了更多的灵活性和可能性。同时,由于界面处两个组分之间存在费米能级差,可以合理地调控每个组分的电子结构,从而大幅度提高碱性介质中的HER催化性能。随着对纳米结构的深入理解,人们开发了更先进的设计策略来构建高性能异质结构电催化剂。本文综述了异质结构催化剂在碱性HER方面的最新发展,以及构建界面异质结构以促进碱性HER动力学性能的合理设计原则。我们首先介绍了HER在碱性介质中的基本反应途径,然后详细讨论了促进碱性HER动力学的新兴有效策略,包括协同效应、应变效应、电子相互作用、相工程和结构工程,最后提出了未来面向实际应用的新型异质结构催化剂设计所面临的挑战和研究机遇。

关键词：界面异质结构制氢水离解氢吸附协同效应

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“九五”以来我国教育现代化研究综述(下)

学科教育 2004年第12期 6-10页

作者：周稽裘马维娜江苏省教育科学研究院江苏南京210003

本文试图从历史行程与问题检讨、内在剖析与关联突显、观念把捉与策略操作等不同研究纬度 ,对“九五”以来的教育现代化研究进行回顾与梳理 ,并从“问题意识”出发 ,在批判性反思基础上。

关键词：教育现代化 “九五” 批判性反思 “问题意识” 研究综述中国历史突显关联梳理

Regulation and function of endoplasmic reticulum autophagy in neurodegenerative diseases

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Neural Regeneration Research 2025年第1期20卷 6-20页

作者： Xiu-Yun Zhao De-En Xu Ming-Lei Wu ji-Chuan Liu Zi-Ling Shi Quan-Hong ma Department of Neurology and Clinical Research Center of Neurological Disease the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Neuroscience&jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases Soochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology Jiangnan University Medical CenterWuxiJiangsu ProvinceChina

The endoplasmic reticulum,a key cellular organelle,regulates a wide variety of cellular *** reticulum autophagy,one of the quality control systems of the endoplasmic reticulum,plays a pivotal role in maintaining endoplasmic reticulum homeostasis by controlling endoplasmic reticulum turnover,remodeling,and *** this review,we briefly describe the endoplasmic reticulum quality control system,and subsequently focus on the role of endoplasmic reticulum autophagy,emphasizing the spatial and temporal mechanisms underlying the regulation of endoplasmic reticulum autophagy according to cellular *** also summarize the evidence relating to how defective or abnormal endoplasmic reticulum autophagy contributes to the pathogenesis of neurodegenerative *** summary,this review highlights the mechanisms associated with the regulation of endoplasmic reticulum autophagy and how they influence the pathophysiology of degenerative nerve *** review would help researchers to understand the roles and regulatory mechanisms of endoplasmic reticulum-phagy in neurodegenerative disorders.

关键词： autophagy endoplasmic reticulum endoplasmic reticulum autophagy endoplasmic reticulum quality control system endoplasmic reticulum receptors endoplasmic reticulum-associated degradation neurodegeneration neurodegenerative disease selective autophagy unfolded protein response