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Crystallization and thermal fatigue of ZrTiCuNiBe bulk amorphous alloys heated by laser pulses

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Science China(Physics,Mechanics & Astronomy) 2010年第3期53卷 419-423页

作者： JING Qin, zhao liang, yuan Hui, ZHANG Bing, NIU RunBing, ZHANG Jin, LI Gong, MA MingZhen & LIU RiPing State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China State Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao China

The crystallization and thermal fatigue behavior of Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloys heated by laser pulses was investigated. The results showed that crystallization occurred even below the crystallization temperature Tx in a low cycle time. Cracks appearred before or after crystallization of the heated area in the sample. The crystallization degree increased with the heating temperature and cycles. An increase in the fatigue cracks number was also observed. The plastic deformation in the heated area of the sample surface occurred, and became more pronounced with cycles and heating temperature.

关键词： bulk amorphous alloy thermal fatigue crystallization plastic deformation

“Zero‑Strain” NiNb_(2)O_(6) Fibers for All‑Climate Lithium Storage

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Nano-Micro Letters 2025年第1期17卷 348-360页

作者： Yan zhao Qiang yuan Liting Yang Guisheng liang Yifeng Cheng Limin Wu Chunfu Lin Renchao Che College of Physics Donghua UniversityShanghai 201620People’s Republic of China School of Materials Science and Engineering Institute of Materials for Energy and EnvironmentQingdao UniversityQingdao 266071People’s Republic of China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

Niobates are promising all-climate Li^(+)-storage anode material due to their fast charge transport,large specific capacities,and resistance to electrolyte ***,their moderate unit-cellvolume expansion(generally 5%–10%)during Li^(+)storage causes unsatisfactory long-term ***,“zero-strain”NiNb_(2)O_(6) fibers are explored as a new anode material with comprehensively good electrochemical *** Li^(+)storage,the expansion of electrochemical inactive NiO_(6) octahedra almost fully offsets the shrinkage of active NbO_(6) octahedra through reversible O *** superior volume-accommodation capability of the NiO_(6) layers guarantees the“zero-strain”behavior of NiNb_(2)O_(6) in a broad temperature range(0.53%//0.51%//0.74%at 25//−10//60℃),leading to the excellent cyclability of the NiNb_(2)O_(6) fibers(92.8%//99.2%//91.1%capacity retention after 1000//2000//1000 cycles at 10C and 25//−10//60℃).This NiNb_(2)O_(6) material further exhibits a large reversible capacity(300//184//318 mAh g−1 at 0.1C and 25//−10//60℃)and outstanding rate performance(10 to 0.5C capacity percentage of 64.3%//50.0%//65.4%at 25//−10//60℃).Therefore,the NiNb_(2)O_(6) fibers are especially suitable for large-capacity,fast-charging,long-life,and all-climate lithium-ion batteries.

关键词： NiNb_(2)O_(6)porous fiber “Zero-strain”mechanism Electrochemical property Harsh-temperature operation Operando characterization

The dopaminergic system and Alzheimer's disease

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Neural Regeneration Research 2025年第9期20卷 2495-2512页

作者： Yuhan Zhang yuan liang Yixue Gu International Medical College Chongqing Medical UniversityChongqingChina College of Pharmacy Chongqing Medical UniversityChongqingChina Department of Neurology The First Affiliated Hospital of Chongqing Medical UniversityChongqing Key Laboratory of NeurologyChongqingChina

Alzheimer's disease is a common neurodegenerative disorder in older *** its prevalence,its pathogenesis remains unclea *** addition to the most widely accepted causes,which in clude excessive amyloid-beta aggregation,tau hyperphosphorylation,and deficiency of the neurotransmitter acetylcholine,numerous studies have shown that the dopaminergic system is also closely associated with the occurrence and development of this *** is a crucial catecholaminergic neurotransmitter in the human ***-associated treatments,such as drugs that target dopamine receptor D and dopamine analogs,can improve cognitive function and alleviate psychiatric symptoms as well as ameliorate other clinical *** r,therapeutics targeting the dopaminergic system are associated with various adverse reactions,such as addiction and exacerbation of cognitive *** review summarizes the role of the dopaminergic system in the pathology of Alzheimer's disease,focusing on currently available dopamine-based therapies for this disorder and the common side effects associated with dopamine-related *** aim of this review is to provide insights into the potential connections between the dopaminergic system and Alzheimer's disease,thus helping to clarify the mechanisms underlying the condition and exploring more effective therapeutic options.

关键词： adverse drug reaction Alzheimer's disease catecholamine dopamine receptor dopamine receptor heterodimers dopaminergic system neurodegenerative disease neurotransmitter signaling pathways traditional Chinese medicine treatment

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民族地区居民的生活满意度及影响因素研究

北方民族大学学报（哲学社会科学版） 2022年第1期 64-73页

作者：薛品赵亮员中国社会科学院民族学与人类学研究所北京100732 中国社会科学院大学社会学院北京102488

当前,满足人民群众对美好生活的向往已成为各级政府的执政目标。全面小康背景下,如何继续提高民族地区居民的生活满意度和获得感,是理论和实践层面的重大问题。本研究运用八个民族地区调查点的居民调查数据,呈现了现代化背景下民族地区... 详细信息

当前,满足人民群众对美好生活的向往已成为各级政府的执政目标。全面小康背景下,如何继续提高民族地区居民的生活满意度和获得感,是理论和实践层面的重大问题。本研究运用八个民族地区调查点的居民调查数据,呈现了现代化背景下民族地区居民的生活满意度及影响因素。研究发现,民族地区调查点居民的个体和家庭特征、城乡区域和就业等因素都会对生活满意度产生影响,需要从劳动就业、家庭生活等层面完善民族地区的社会政策,提升居民的生活满意度和获得感。

关键词：民族地区生活满意度获得感社会政策

表没食子儿茶素没食子酸酯对亚硫酸盐诱导的心肌细胞氧化损伤的抑制作用

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中国药理学通报 2011年第2期27卷 292-293页

作者：赵良渊张秋华山西医科大学药学院山西太原030001 山西大学环境与资源学院 030006

绿茶常被称为是天然的抗氧化剂,含有很多种酚类物质,其中以表没食子儿茶素没食子酸酯（EGCG）含量最高且生物活性最强。流行病学调查和实验室研究表明,EGCG具有清除自由基、抗氧化、抗癌、抗肿瘤等功效[1-2],

关键词：表没食子儿茶素没食子酸酯氧化损伤亚硫酸盐心肌细胞抑制作用自由基

A promising approach for quantifying focal stroke modeling and assessing stroke progression:optical resolution photoacoustic microscopy photothrombosis

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Neural Regeneration Research 2025年第7期20卷 2029-2037页

作者： Xiao liang Xingping Quan Xiaorui Geng Yujing Huang Yonghua zhao Lei Xi Zhen yuan Ping Wang Bin Liu Faculty of Health Sciences University of MacaoMacao Special Administrative RegionChina Center for Cognitive and Brain Sciences University of MacaoMacao Special Administrative RegionChina Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Emergency Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

To investigate the mechanisms underlying the onset and progression of ischemic stroke,some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral ***,these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied,although ischemic stroke is strongly *** this study,we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed *** observed the molding process in mice of different ages and presented age-dependent vascular embolism ***,we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a *** imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages,thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

关键词： age-dependent cerebral cortex ischemic stroke mouse model optical coherence tomography angiography photoacoustic microscopy photothrombosis vascular imaging

医药创新系统中的“R&D-大服务”联动:基于两个一类新药创新的研究

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中国软科学 2008年第8期 43-51页

作者：赵远亮周寄中许治中国科学院研究生院管理学院北京100049

本文通过两个新药创新案例剖析了医药创新系统中政府、科研、大学、企业等要素的联动关系,其本质上也即"R&D-大服务"的联动。在"R&D-大服务"联动中,当创新要素完备且充分联动时,创新系统发挥较好的功能,创新绩效较高;反之,亦反之。上述... 详细信息

本文通过两个新药创新案例剖析了医药创新系统中政府、科研、大学、企业等要素的联动关系,其本质上也即"R&D-大服务"的联动。在"R&D-大服务"联动中,当创新要素完备且充分联动时,创新系统发挥较好的功能,创新绩效较高;反之,亦反之。上述联动也存在于企业创新系统中,联动作用的发挥决定了企业创新的绩效。

关键词：医药创新 R&D 大服务联动

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人工湿地填料除砷效率及影响因素试验研究

长江科学院院报 2015年第6期32卷 42-48页

作者：吴敏赵良元冯雪长江科学院流域水环境研究所武汉430010 长江科学院流域水资源与生态环境科学湖北省重点实验室武汉430010

人工湿地是净化含砷水体的重要途径之一,而填料是决定人工湿地除砷效果的关键因素。通过填料如砾石、锰砂、沸石和陶粒的理化性质的测定,以及各种填料的吸附动力学、吸附等温线和吸附影响因素试验,研究了填料的除砷性能及影响因素。结... 详细信息

人工湿地是净化含砷水体的重要途径之一,而填料是决定人工湿地除砷效果的关键因素。通过填料如砾石、锰砂、沸石和陶粒的理化性质的测定,以及各种填料的吸附动力学、吸附等温线和吸附影响因素试验,研究了填料的除砷性能及影响因素。结果表明：4种填料均能在24 h内达到吸附平衡,一级动力学方程和二级动力学方程能很好地拟合其吸附过程;锰砂、陶粒、沸石和砾石最大吸附容量依次为36.62,25.39,11.96,7.04 mg/kg,Freundlich方程能较好地拟合填料的等温吸附过程;在0.25-0.50 mm范围内,粒径对锰砂和陶粒吸附砷影响不显著;溶液中氨氮浓度在0.50-2.50 mg/L范围内几乎不影响填料对砷的吸附;当砷初始浓度低于0.4 mg/L时,磷酸盐在0.25-0.50 mg/L范围内对填料吸附砷的影响不显著;砷初始浓度高于0.4 mg/L时,随着磷酸盐浓度从0.25 mg/L增加至0.50 mg/L时,陶粒对砷的最大吸附量降低了2.57 mg/kg,对锰砂的吸附量降低了1.85 mg/kg。

关键词：人工湿地填料除砷效率陶粒锰砂吸附量

新型饮用水除氟材料Bio-F的除氟特性和比较研究

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环境科学 2009年第4期30卷 1036-1043页

作者：朱迟赵良元袁恒杨菡影李昂王鹏杨劭华中师范大学湖北省城市水环境生态学重点实验室武汉430079 华中师范大学第一附属中学武汉430223

对3种传统除氟剂活性氧化铝、骨炭和改性沸石与自制的新型生物除氟剂Bio-F的除氟性能及影响因素（材料粒径、pH值、吸附时间、水样含氟浓度、其它离子、再生能力等）进行了比较,并模拟动态实验评估了这4种除氟材料对实际高氟地下水处理... 详细信息

对3种传统除氟剂活性氧化铝、骨炭和改性沸石与自制的新型生物除氟剂Bio-F的除氟性能及影响因素（材料粒径、pH值、吸附时间、水样含氟浓度、其它离子、再生能力等）进行了比较,并模拟动态实验评估了这4种除氟材料对实际高氟地下水处理的效果.结果表明,Bio-F生物除氟剂对F-的吸附过程符合Lagergren一级吸附动力学特征（R2=0.958 0）,吸附速率较快,且该过程属于吸热反应;Bio-F吸附F-符合Langmuir吸附等温模型（R2=0.999 2）,吸附容量高,静态吸附容量可达4.088 3mg.g^-1,分别约是活性氧化铝和改性沸石的1.8和5.8倍.4种除氟材料吸附容量与氟浓度正相关,与吸附剂粒径负相关.高浓度的CO3^2-、HCO3^-明显抑制Bio-F的除氟（p〈0.05）,但高浓度的Ca^2＋、NO3^-、HPO4^2-有利于Bio-F的除氟（p〈0.001）.Bio-F除氟最佳停留时间3-4 min,远远低于沸石20 min和活性氧化铝11 min.在pH 4.0-9.0范围内Bio-F可保持90%以上吸附F-的能力.再生性能稳定,10次再生后吸附容量变化不超过15%.Bio-F综合性能优于其它3种传统除氟剂,在我国广大农村地区推广有显著优越性.

关键词：饮水除氟除氟剂除氟特性吸附容量