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Enhanced compression ductility of stoichiometric NiAl at room temperature by Y and Cu co-addition

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International Journal of Minerals,Metallurgy and Materials 2012年第4期19卷 348-353页

作者： Xing-hao Du Chong Gao Bao-lin wu yu-hua zhao Ji-jie Wang School of Materials Science and Engineering Shenyang Aerospace University Shenyang 110136 China

The combined effects of （Y, Cu） on the microstructttre and room-temperature mechanical properties of the NiA1 intermetallic com- pound under uniaxial compression stress were investigated. It is found that the co-addition of Y and Cu enlarges the difference between the inter- granular yield strength and the intragranular yield strength of NiA1 grains. Hence, for the resultant NiAI-（Y,Cu） alloy, a mechanically hierar- chical structure forms. This is beneficial to improve the room-temperature mechanical response of NiA1 alloys; as a result, the resultant alloy with 0.56at% （Y, Cu） exhibits a remarkably enhanced compression plasticity of about 11.2%.

关键词： intermetallics microalloying microstructure plasticity

miR-181b promotes angiogenesis and neurological function recovery after ischemic stroke

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Neural Regeneration Research 2023年第9期18卷 1983-1989页

作者： Li-Xia Xue Lin-yuan Shu Hong-Mei Wang Kai-Li Lu Li-Gang Huang Jing-Yan Xiang Zhi Geng yu-wu zhao Hao Chen Department of Neurology Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Emergency Medicine Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurosurgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina

Promotion of new blood vessel formation is a new strategy for treating ischemic ***-coding miRNAs have been recently considered potential therapeutic targets for ischemic ***-181b has been shown to promote angiogenesis in hypoxia and traumatic brain injury model,while its effect on ischemic stroke remains *** this study,we found that overexpression of miR-181b in brain microvascular endothelial cells subjected to oxygen-glucose deprivation in vitro restored cell prolife ration and enhanced *** rat models of focal cerebral ischemia,ove rexpression of miR-181b reduced infarction volume,promoted angiogenesis in ischemic penumbra,and improved neurological *** further investigated the molecular mechanism by which miR-181b participates in angiogenesis after ischemic stroke and found that miR-181b directly bound to the 3’-UTR of phosphatase and tensin homolog(PTEN) mRNA to induce PTEN downregulation,leading to activation of the protein kinase B(Akt) pathway,upregulated expression of vascular endothelial growth facto rs,down-regulated expression of endostatin,and promoted *** togethe r,these results indicate that exogenous miR-181b exhibits neuroprotective effects on ischemic stro ke through activating the PTEN/Akt signal pathway and promoting angiogenesis.

关键词： Akt angiogenesis endostatin ischemic stroke middle cerebral artery occlusion miR-181b neurological function recovery oxygen-glucose deprivation PTEN vascular endothelial growth factor

Edaravone rescues the lung by inhibiting lipid peroxidation and pro-inflammatory cytokines in a rat model

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Chinese Medical Journal 2014年第5期127卷 968-970页

作者： wu Zhouyang Ming yu Zhang zhao wu Jing wu Zhilin Yao Shanglong Department of Anesthesia and Critical Care Union Hospital Tongji Medical College Huazhong University of Science and TechnologyWuhan Hubei 430022 China

Acute lung injury/acute respiratory distress syndrome （ALI/ARDS） is a frequent complication in critically ill patients and cause significant mortality.1 Effects of reactive oxygen species （ROS） on alveolar epithelial cells are involved in the pathophysiology of ALI/*** can provoke DNA damage,lipid peroxidation,and activation of various genes coding for proteins involved in inflammation and cell damage.

关键词： acute lung injury edaravone free radical scavenger inflammation

A new horizon for neuroscience:terahertz biotechnology in brain research

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Neural Regeneration Research 2025年第2期20卷 309-325页

作者： Zhengping Pu yu wu Zhongjie Zhu Hongwei zhao Donghong Cui Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry Kangci Hospital of JiaxingTongxiangZhejiang ProvinceChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghaiChina National Facility for Protein Science in Shanghai Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina

Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain *** this article,we review the development of terahertz biotechnology and its applications in the field of *** evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease,cerebrovascular disease,glioma,psychiatric disease,traumatic brain injury,and myelin *** vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric *** the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood,the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic ***,the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical *** review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.

关键词： biological effect brain neuron neuropsychiatry neuroscience non-thermal effect terahertz imaging terahertz radiation terahertz spectroscopy terahertz technology

Fragment Angular Distributions for ^(40)Ar+^(197)Au Reaction

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Chinese journal of nuclear physics 1995年第1期17卷 21-23页

作者： Liu Guo-xing Chen Ke-liang yu Xian Zheng Ji-wen Jin Wei-yang Sun Tong-yu wu Ding-qing zhao Li-li Zang Xiang Yin Xin-min Qin Zhi (Institute of Modern Physics.Chinese Acaemy of Sciences.Lanzhou 730000) Inst of Modern Physics Chinese Acad of Sciences Lanzhou China

The fragment angular distributions for the 600 MeV 40Ar+197Au reaction aremeasured using off line γ-ray spectroscopy *** features of the fragment an-gular distributions and the reaction mechanisms for the produced fr... 详细信息

关键词： Fragment angular distribution Intermediate mass fragment

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao yu Yingjie Zhou Yao Lin Ying wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

Unraveling the significance of cobalt on transformation kinetics,crystallography and impact toughness in high-strength steels

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 380-390页

作者： Yishuang yu Jingxiao zhao Xuelin Wang Hui Guo Zhenjia Xie Chengjia Shang Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China

This work reveals the significant effects of cobalt(Co)on the microstructure and impact toughness of as-quenched highstrength steels by experimental characterizations and thermo-kinetic *** results show that the Co-bearing steel exhibits finer blocks and a lower ductile-brittle transition temperature than the steel without ***,the Co-bearing steel reveals higher transformation rates at the intermediate stage with bainite volume fraction ranging from around 0.1 to *** improved impact toughness of the Co-bearing steel results from the higher dense block boundaries dominated by the V1/V2 variant ***,the addition of Co induces a larger transformation driving force and a lower bainite start temperature(BS),thereby contributing to the refinement of blocks and the increase of the V1/V2 variant *** findings would be instructive for the composition,microstructure design,and property optimization of high-strength steels.

关键词： high-strength steel cobalt transformation kinetics crystallography impact toughness

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根皮素衍生化的研究进展

中草药 2017年第20期48卷 4353-4360页

作者：张宏宇周武喜赵余庆沈阳药科大学中药学院辽宁沈阳110016 沈阳药科大学基于靶点的药物设计与研究教育部重点实验室辽宁沈阳110016

根皮素是一种从苹果树根皮、果实及叶中分离得到的天然二氢查耳酮类化合物,在多种植物中也有发现。根皮素具有抗炎、抑菌、抗肿瘤、降血糖等药理活性,有广泛的应用前景。根皮素的衍生化有助于提高其生物活性及改善水溶性。对根皮素衍生... 详细信息

根皮素是一种从苹果树根皮、果实及叶中分离得到的天然二氢查耳酮类化合物,在多种植物中也有发现。根皮素具有抗炎、抑菌、抗肿瘤、降血糖等药理活性,有广泛的应用前景。根皮素的衍生化有助于提高其生物活性及改善水溶性。对根皮素衍生化的研究进展进行综述,为根皮素衍生物的研究利用提供参考。

关键词：根皮素衍生物结构修饰二氢查耳酮抗炎活性抑菌活性抗肿瘤活性

High-temperature-tolerant flexible supercapacitors: Gel polymer electrolytes and electrode materials

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Journal of Energy Chemistry 2025年第1期100卷 426-457页

作者： Chong Peng Xinyi Huang Mingwei zhao Shuling Liao Quanhong Yang Nianjun Yang Siyu yu School of Chemistry & Chemical Engineering Southwest University Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Department of Chemistry & IMO-IMOMEC Hasselt University

The development of flexible supercapacitors(FSCs) capable of operating at high temperatures is crucial for expanding the application areas and operating conditions of supercapacitors. Gel polymer electrolytes and electrode materials stand as two key components that significantly impact the efficacy of hightemperature-tolerant FSCs(HT-FSCs). They should not only exhibit high electrochemical performance and excellent flexibility, but also withstand intense thermal stress. Considerable efforts have been devoted to enhancing their thermal stability while maintaining high electrochemical and mechanical performance. In this review, the fundamentals of HT-FSCs are outlined. A comprehensive overview of state-of-the-art progress and achievements in HT-FSCs, with a focus on thermally stable gel polymer electrolytes and electrode materials is provided. Finally, challenges and future perspectives regarding HT-FSCs are discussed, alongside strategies for elevating operational temperatures and *** review offers both theoretical foundations and practical guidelines for designing and manufacturing HT-FSCs, further promoting their widespread adoption across diverse fields.

关键词： Flexible supercapacitors High-temperature tolerance Gel polymer electrolytes Electrode materials