检索结果-南通市图书馆

Relationship between microstructure and tensile properties on a near-β titanium alloy after multidirectional forging and heat treatment

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2019年第4期38卷 336-342页

作者： Zhi-Dan Lu Chang-Jiang Zhang zhao-xin du Jian-Chao Han Shu-Zhi Zhang Fei Yang Yu-Yong Chen Shanxi Key Laboratory of Advanced Magnesium-Based Materials School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024 China School of Materials Science and Engineering Inner Mongolia University of Technology Hohhot 010051China School of Mechanical Engineering Taiyuan University of Technology Taiyuan 030024 China Waikato Centre for Advanced Materials School of Engineering The University of Waikato Hamilton 3204 New Zealand School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China

In this study, a new near-beta titanium alloy, Ti- 4Al-1 Sn-2Zr-5Mo-8V-2.5Cr, was prepared by induction skull melting (ISM) and multidirectional forging. The effect of aging heat treat me rn on microstructure and ten sile properties of the alloy after solution treatment in the twophase (α+β) region was investigated. The microstructure results show that the globular primary ot phase (cxp) and the needle-like secondary y. phase (ots) are precipitated in the P matrix. The size of ots increases with the increase in aging temperature, while the con tent of ots goes up to a peak value and then decreases. The tensile testing results show that the strength increases first and then decreases with the in crease in temperature. The variation of ductility presents the opposite way compared with the trend of strength level. When aged at 500℃, the alloy exhibits an excellebalance of tensile strength (1529 MPa) and elongation (9.22%). And the relative mechanism of sirengthening and toughening was analyzed and discussed.

关键词： Near-β titanium alloy Multidirectional forging Heat treatment Microstructure Tensile properties

Preparation of FeCoNi medium entropy alloy from Fe^(3+)-Co^(2+)-Ni^(2+)solution system

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 92-101页

作者： Zongyou Cheng Qing zhao Mengjie Tao Jijun du xingxi Huang Chengjun Liu Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-carbon Steelmaking(Ministry of Education) Shenyang 110819China

In recent years,medium entropy alloys have become a research hotspot due to their excellent physical and chemical *** controlling reasonable elemental composition and processing parameters,the medium entropy alloys can exhibit similar properties to high entropy alloys and have lower *** this paper,a FeCoNi medium entropy alloy precursor was prepared via sol-gel and coprecipitation methods,respectively,and FeCoNi medium entropy alloys were prepared by carbothermal and hydrogen *** phases and magnetic properties of FeCoNi medium entropy alloy were *** showed that FeCoNi medium entropy alloy was produced by carbothermal and hydrogen reduction at 1500℃.Some carbon was detected in the FeCoNi medium entropy alloy prepared by carbothermal *** alloy prepared by hydrogen reduction was uniform and showed a relatively high ***,the hydrogen reduction product exhibited better saturation magnetization and lower coercivity.

关键词： medium entropy alloy sol-gel co-precipitation carbothermal hydrogen reduction

Defect Engineering:Can it Mitigate Strong Coulomb Effect of Mg^(2+)in Cathode Materials for Rechargeable Magnesium Batteries?

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing Fan Ruimin Li xin Zhang Wanyu zhao Zhenghui Pan Xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

在线全文

学校读者我要写书评

暂无评论

成套涂装线污染源内容及治理方法

现代涂料与涂装 2006年第9期9卷 32-33页

作者：赵新都江苏南方涂装环保股份有限公司南京210017

介绍了成套涂装线主要污染源的种类和相应的治理方法。

关键词：涂装线污染源治理方法

在线全文

学校读者我要写书评

暂无评论

成套涂装工艺选择与设备结构

现代涂料与涂装 2009年第4期12卷 18-22页

作者：赵新都江苏南方涂装环保股份有限公司江苏宜兴214242

介绍了成套涂装的工艺选择与设备结构。

关键词：成套涂装工艺选择设备结构

成套涂装装备应成为制造业节能减排、清洁生产的硬件保障

在线全文

学校读者我要写书评

暂无评论

现代涂料与涂装 2008年第10期11卷 35-36,43页

作者：赵新都江苏南方涂装环保股份有限公司南京210001

介绍了涂装装备制造商推广节能减排型涂装作业工艺的必要性和发展趋势。

关键词：涂装装备节能减排涂装作业环境保护

Highly mass activity electrocatalysts with ultralow Pt loading on carbon black for hydrogen evolution reaction

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 182-190页

作者： Shaorou Ke Yajing zhao xin Min Yanghong Li Ruiyu Mi Yangai Liu Xiaowen Wu Minghao Fang zhaohui Huang Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastersNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China

Pt-based nanocatalysts offer excellent prospects for various ***,the low loading of Pt with excellent performance for efficient and stable nanocatalysts still presents a considerable *** this study,nanocatalysts with ultralow Pt content,excellent performance,and carbon black as support were prepared through in-situ ***~2-nm particles uniformly and stably dispersed on carbon black because of the strong s-p-d orbital hybridizations between carbon black and Pt,which suppressed the agglomeration of Pt *** unique structure is beneficial for the hydrogen evolution *** catalysts exhibited remarkable catalytic activity for hydrogen evolution reaction,exhibiting a potential of 100 mV at 100 mA·cm^(-2),which is comparable to those of commercial Pt/C *** activity(1.61 A/mg)was four times that of a commercial Pt/C catalyst(0.37 A/mg).The ultralow Pt loading(6.84wt%)paves the way for the development of next-generation electrocatalysts.

关键词： hydrogen evolution reaction ultralow platinum in-situ synthesis ultrasound

Comparative proteomic analysis of plasma exosomes reveals the functional contribution of N-acetyl-alpha-glucosaminidase to Parkinson’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2998-3012页

作者： Yuan zhao Yidan Zhang xin Liu Jian Zhang Ya Gao Shuyue Li Cui Chang Xiang Liu Guofeng Yang Department of Geriatrics Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina Department of Neurosurgery The Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina

Parkinson’s disease is the second most common progressive neurodegenerative disorder,and few reliable biomarkers are available to track disease *** proteins,DNA,mRNA,and lipids carried by exosomes reflect intracellular changes,and thus can serve as biomarkers for a variety of *** this study,we investigated alterations in the protein content of plasma exosomes derived from patients with Parkinson’s disease and the potential therapeutic roles of these proteins in Parkinson’s *** a tandem mass tag-based quantitative proteomics approach,we characterized the proteomes of plasma exosomes derived from individual patients,identified exosomal protein signatures specific to patients with Parkinson’s disease,and identified N-acetyl-alpha-glucosaminidase as a differentially expressed protein.N-acetyl-alpha-glucosaminidase expression levels in exosomes from the plasma of patients and healthy controls were validated by enzyme-linked immunosorbent assay and western *** results demonstrated that the exosomal N-acetyl-alpha-glucosaminidase concentration was not only lower in Parkinson’s disease,but also decreased with increasing Hoehn-Yahr stage,suggesting that N-acetyl-alpha-glucosaminidase could be used to rapidly evaluate Parkinson’s disease ***,western blot and immunohistochemistry analysis showed that N-acetyl-alpha-glucosaminidase levels were markedly reduced both in cells treated with 1-methyl-4-phenylpyridinium and cells overexpressingα-synuclein compared with control ***,N-acetyl-alpha-glucosaminidase overexpression significantly increased cell viability and inhibitedα-synuclein expression in 1-methyl-4-phenylpyridinium-treated *** together,our findings demonstrate for the first time that exosomal N-acetyl-alpha-glucosaminidase may serve as a biomarker for Parkinson’s disease diagnosis,and that N-acetyl-alpha-glucosaminidase may reduceα-synuclein expression and 1-methyl-4-phenylpyridinium-induced n

关键词： biomarker diagnosis exosomes N-acetyl-alpha-glucosaminidase Parkinson’s disease proteomic α-synuclein

From text to image:challenges in integrating vision into ChatGPT for medical image interpretation

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第2期20卷 487-488页

作者： Shunsuke Koga Wei du Department of Pathology and Laboratory Medicine Hospital of the University of PennsylvaniaPhiladelphiaPAUSA

Large language models(LLMs),such as ChatGPT developed by OpenAI,represent a significant advancement in artificial intelligence(AI),designed to understand,generate,and interpret human language by analyzing extensive text *** potential integration into clinical settings offers a promising avenue that could transform clinical diagnosis and decision-making processes in the future(Thirunavukarasu et al.,2023).This article aims to provide an in-depth analysis of LLMs’current and potential impact on clinical *** ability to generate differential diagnosis lists underscores their potential as invaluable tools in medical practice and education(Hirosawa et al.,2023;Koga et al.,2023).

关键词： image diagnosis text