检索结果-南通市图书馆

Effect of Grain Boundary Engineering on the Work Hardening Behavior of AL6XN Super‑Austenitic Stainless Steel

Acta Metallurgica Sinica(English Letters) 2023年第4期36卷 681-693页

作者： X.J.Guan z.p.jia M.A.Nozzari Varkani X.W.Li Department of Materials physics and Chemistry School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Key Laboratory for Anisotropy and Texture of Materials Ministry of EducationNortheastern UniversityShenyang 110819China

To examine the influence of grain boundary engineering(GBE)on the work hardening behavior,the tensile tests were carried out on the non-GBE and GBE AL6XN super-austenitic stainless steel(ASS)samples with a comparable grain size at two strain rates of 10^(-2)s^(-1)and 10^(-4)s^(-1).The evolution of deformation microstructures was revealed by transmission electron microscopy(TEM)and quasi-in situ electron backscatter diffraction(EBSD)*** results show that the influence of GBE on the mechanical properties of AL6XN super-ASS is mainly manifested in the change of work hardening *** the early stage of plastic deformation,GBE samples show a slightly lowered work hardening rate,since the special grain boundaries(SBs)of a high fraction induce a higher dislocation free path and a weaker back stress;however,with increasing plastic deformation amount,the work hardening rate of GBE samples gradually surpasses that of non-GBE samples due to the better capacity of maintainable work hardening that is profited from the inhibited dislocation annihilation by *** a word,the enhanced capacity of sustained work hardening effectively postpones the appearance of necking point and thus efficaciously ameliorates the ductility of GBE samples under the premise of little changes in yield strength and ultimate tensile strength.

关键词： AL6XN super-austenitic stainless steel Grain boundary engineering Work hardening behavior Quasi-in situ observation Ductility

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A pathway to improve low-cycle fatigue life of face-centered cubic metals via grain boundary engineering

引用

Journal of Materials Science & Technology 2022年第18期113卷 82-89页

作者： X.J.Guan z.p.jia S.M.Liang F.Shi X.W.Li Department of Materials physics and Chemistry School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Key Laboratory for Anisotropy and Texture of Materials Ministry of EducationNortheastern UniversityShenyang 110819China

To probe a pathway to improve the low-cycle fatigue life of face-centered cubic(FCC)metals via grain boundary engineering(GBE),the tension-tension fatigue tests were carried out on the non-GBE and GBE Cu-16 at.%Al alloys at relatively high stress *** results indicate that the cyclic strain localiza-tion and cracking at grain boundaries(GBs)can be effectively suppressed,especially at increased stress amplitude,by an appropriate GBE treatment that can result in a higher resistance to GB cracking and a greater capability of compatible ***,the sensitivity of fatigue life to stress amplitude can be weakened by GBE,and the low-cycle fatigue life of Cu-16 at.%Al alloys is thus distinctly improved.

关键词： Cu-Al alloy Grain boundary engineering Fatigue life Crack nucleation Stress amplitude

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Review on Thermal Management of Li-ion Battery:from Small-Scale Battery Module to Large-Scale Electrochemical Energy Storage power Station

引用

Journal of Thermal Science 2025年第1期34卷 1-23页

作者： CHEN zhifeng jia Li YIN Liaofei DANG Chao REN Honglei zHANG zhiqiang Beijing Key Laboratory of Flow and Heat Transfer of phase Changing in Micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China

Li-ion battery is an essential component and energy storage unit for the evolution of electric vehicles and energy storage technology in the ***,in order to cope with the temperature sensitivity of Li-ion battery and maintain Li-ion battery safe operation,it is of great necessary to adopt an appropriate battery thermal management system(BTMS).In this paper,the current main BTM strategies and research hotspots were discussed from two aspects:small-scale battery module and large-scale electrochemical energy storage power station(EESpS).The practical application situation,advantages and disadvantages,and the future development trend of each heat dissipation method(air,liquid,pCM,heat pipe,hybrid cooling)were described in *** them,the air cooling and liquid cooling were reviewed in-depth based on the engineering *** pCM,heat pipe and hybrid cooling were reviewed extensively based on the latest *** research provides a comprehensive understanding for the BTMS in all scales.

关键词： battery thermal management cooling methods small-scale battery module large-scale electrochemical energy storage power station

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ti^(3+)/Ti^(4+)and Co^(2+)/Co^(3+)redox couples in Ce-doped Co-Ce/TiO2 for enhancing photothermocatalytic toluene oxidation

引用

Journal of Environmental Sciences 2025年第3期149卷 164-176页

作者： Guanghui Li Xiaolan Li Xinhui Hao Qiang Li Meng zhang Hongpeng jia Xiamen Key Laboratory of Materials for Gaseous pollutant Control Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key Laboratory of Urban pollutant Conversion Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China CAS Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China

Cerium and cobalt loaded Co-Ce/TiO_(2)catalyst prepared by impregnation method was investigated for photothermal catalytic toluene *** on catalyst characterizations(XpS,EpR and H2-TpR),redox cycle between Co and TiO_(2)(Co^(2+)+Ti^(4+)↔Co^(3+)+Ti^(3+))results in the formation of Co^(3+),Ti^(3+)and oxygen vacancies,which play important roles in toluene catalytic oxidation *** introduction of Ce brings in the dual redox cycles(Co^(2+)+Ti^(4+)↔Co^(3+)+Ti^(3+),Co^(2+)+Ce4+↔Co^(3+)+Ce3+),further promoting the elevation of reaction sites *** full spectrum irradiation with light intensity of 580mW/cm^(2),Co-Ce/TiO_(2)catalyst achieved 96%of toluene conversion and 73%of CO_(2)yield,obviously higher than Co/p25 and Co/TiO_(2).Co-Ce/TiO_(2)efficiently maintains 10-hour stability test under water vapor conditions and exhibits better photothermal catalytic performance than counterparts under different wavelengths *** catalytic reaction displays improved activities compared with thermal catalysis,which is attributed to the promotional effect of light including photocatalysis and light activation of reactive oxygen species.

关键词： photothermal catalysis Redox cycle Oxygen vacancy VOCs Titanium dioxide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fluorine-functionalized zirconium-organic cages for efficient photocatalytic oxidation of thioanisole

引用

Chinese Chemical Letters 2025年第1期36卷 632-636页

作者： jia-Ru Li Ning Li Li-Ling He Jun He School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhou 510006China School of Chemistry South China Normal UniversityGuangzhou 510006China

zirconium-based metal-organic cages(zr-MOCs)typically exhibit high stability,but their structural and application reports are scarce due to stringent crystallization *** have successfully fluorinated the classical zr-MOCs(zrT-3)for the first time,obtaining the fluorinated MOCs(zrT-3-F).Notably,zrT-3-F not only inherits the high stability of its parent structure,but also acts as a catalyst for the effective oxidation of benzyl thioether for the first *** reaction can reach a conversion rate of 99%in 6 h,and the selectivity reaches 95%,which far exceeds the non-fluorinated *** work proves that the specific functionalization of the classical zr-MOCs can further expand their application potential,such as catalysis.

关键词： Ultraviolet light Fluorine zirconium-based metal-organic cages Sulfide oxidation Multiphase photocatalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Optimizing cooling approach of spiral coil for an electromagnetic steel teeming system of ladle in continuous casting production

引用

Journal of Iron and Steel Research International 2025年第1期32卷 85-94页

作者： Ming He Qing-wei Wang Li-jia zhao Wang-zhong Mu Xing-an Liu Qiang Wang College of Horticulture Shenyang Agricultural UniversityShenyang110866LiaoningChina Key Laboratory of Electromagnetic processing of Materials(Ministry of Education) Northeastern UniversityShenyang110819LiaoningChina Key Laboratory of protected Horticulture(Ministry of Education) Shenyang Agricultural UniversityShenyang110866LiaoningChina Department of Materials Science and Engineering KTH Royal Institute of TechnologyStockholm10044Sweden

To address the current issues with the conventional slide gate system utilized in the steel teeming process,a unique electromagnetic induction controlled automated steel teeming(EICAST)technology has been *** means of spiral coil in this technology is directly related to its service ***,heat transfer processes of air cooling and spray cooling were compared and ***,the impacts of water temperature,water flow rate and air flow rate were examined in order to maximize the spray cooling *** maintain coil temperature at a low value consistently throughout the entire thermal cycle process of the ladle,a combined cooling mode was finally *** simulation was applied to examine the coil temperature variation with different cooling systems and *** coil operation,spray cooling is said to be more *** controlling the water flow rate and air flow rate,the spray cooling effect is ***,water temperature has little or no impact when using spray *** cooling during the secondary refining process and spray cooling prior to coil operation are combined to further lower coil *** the direction of the spray cooling is from bottom to top,the coil temperature is lowered below 165℃.A practical induction coil cooling plan was provided for the EICAST technology’s production process.

关键词： Electromagnetic induction controlled automated steel teeming technology Spiral coil Spray cooling Heat transfer Continuous casting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An Objective Synoptic Analysis Technique for the Identification of Tropical Cyclone Remote precipitation in China and Its Application

引用

Journal of Ocean University of China 2025年第1期24卷 13-30页

作者： jia Li DING Chenchen CONG Chunhua REN Fumin LIU Yanan School of Atmospheric Science Nanjing University of Information Science and TechnologyNanjing 210044China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China public Meteorological Service Center of CMA Beijing 100081China Shandong Meteorological Bureau Jinan 250031China Laboratory of Cloud-precipitation physics and Severe Storms(LACS) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

At present,the identification of tropical cyclone remote precipitation(TRp)requires subjective participation,leading to inconsistent results among different researchers despite adopting the same identification ***,establishing an objective identification method is greatly *** this study,an objective synoptic analysis technique for TRp(OSAT_TRp)is proposed to identify TRp using daily precipitation datasets,historical tropical cyclone(TC)track data,and the ERA5 reanalysis *** method includes three steps:first,independent rain belts are separated,and those that might relate to TCs'remote effects are distinguished according to their distance from the ***,the strong water vapor transport belt from the TC is identified using integrated horizontal water vapor transport(IVT).Third,TRp is distinguished by connecting the first two *** TRp obtained through this method can satisfy three criteria,as follows:1)the precipitation occurs outside the circulation of TCs,2)the precipitation is affected by TCs,and 3)a gap exists between the TRp and TC rain *** diagnosis analysis,compared with subjective TRp results and backward trajectory analyses using HYSpLIT,indicates that OSAT_TRp can distinguish TRp even when multiple TCs in the Northwest pacific are ***,we applied the OSAT_TRp to select typical TRps and obtained the synoptic-scale environments of the TRp through composite analysis.

关键词： tropical cyclone remote precipitation objective identification method

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synergistic promotion strategy of “dual-site” and “dual-path” to enhance the C–C coupling between CO_(2) and HCHO driven by photoelectrocatalysis

引用

Journal of Energy Chemistry 2025年第1期100卷 39-49页

作者： Hongqiang Yang jianfeng zheng Guoyu Wang Yifei Gao Yatao Yang jia Li Xiaojin Han Yan Cui zhanggen Huang National Key Laboratory of High Efficiency and Low Carbon Utilization of Coal Institute of Coal ChemistryChinese Academy of ScienceTaiyuan 030001ShanxiChina University of Chinese Academy of Science Beijing 100049China Shenyang University of Chemical Technology Shenyang 110142LiaoningChina

photoelectrocatalytic coupling CO_(2)and volatile organic compounds (VOCs) is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catalytic efficiency is always at the mercy of chemical inertness of CO_(2)and the competitive hydrogen evolution of ***,a modified g-C_(3)N_(4)/znAl-LDH z-scheme heterojunction catalyst with dual reaction site was rationally designed and precisely *** Faraday efficiency of ethanol reached 68.67%with a corresponding formation rate of 227.3μmol g^(-1)h^(-1).As revealed by in-situ characterizations and density functional theory calculations,CO_(2)and HCHO were absorbed at zn site and N site,***,*CO generated from CO_(2)and HCHO was converted to*CH_(3)O and*CHO on the dual-active-site *** detailed reaction mechanism experiments indicated that C–C coupling only occurred between*CO and*CH_(3)O in electrocatalysis *** from the“*CO+*CH_(3)O”path,another“*CO+*CHO”coupling path was also detected in photoelectrocatalytic *** selectivity of ethanol was significantly enhanced due to the synthesis of dual-site catalyst and the dual-path coupling path between CO_(2)and HCHO simultaneously driven by light and electricity.

关键词： g-C_(3)N_(4)/znAl-LDH heterojunction z-scheme C-C coupling Ethanol

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

引用

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

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ti_(3)C_(2)T_(x) Composite Aerogels Enable pressure Sensors for Dialect Speech Recognition Assisted by Deep Learning

引用

Nano-Micro Letters 2025年第5期17卷 1-15页

作者： Yanan Xiao He Li Tianyi Gu Xiaoteng jia Shixiang Sun Yong Liu Bin Wang He Tian peng Sun Fangmeng Liu Geyu Lu State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012People’s Republic of China School of Integrated Circuits Tsinghua UniversityBeijing 100084People’s Republic of China International Center of Future Science Jilin UniversityChangchun 130012People’s Republic of China

Wearable pressure sensors capable of adhering comfortably to the skin hold great promise in sound ***,current intelligent speech assistants based on pressure sensors can only recognize standard languages,which hampers effective communication for non-standard language ***,we prepare an ultralight Ti_(3)C_(2)T_(x)MXene/chitosan/polyvinylidene difluoride composite aerogel with a detection range of 6.25 pa-1200 k pa,rapid response/recovery time,and low hysteresis(13.69%).The wearable aerogel pressure sensor can detect speech information through the throat muscle vibrations without any interference,allowing for accurate recognition of six dialects(96.2%accuracy)and seven different words(96.6%accuracy)with the assistance of convolutional neural *** work represents a significant step forward in silent speech recognition for human–machine interaction and physiological signal monitoring.

关键词： pressure sensor Wearable sensor Ti_(3)C_(2)T_(x) composite aerogel Dialect speech recognition

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：