检索结果-南通市图书馆

Changes in microstructure and properties of weld heat-affected zone of high-strength low-alloy steel

Journal of Iron and Steel Research International 2024年第8期31卷 2041-2052页

作者： shu-jun jia Qi-lin Ma Yu Hou Ba Li He-song Zhang Qing-you Liu Central Iron and Steel Research Institute Co. Ltd.Beijing 100081China Collaborative Innovation Center for Steel Commonality University of Science and Technology BeijingBeijing 100083China Construction Project Management Branch of China National Petroleum Pipeline Network Group Co. Ltd.Langfang 065000HebeiChina

The evolution of the microstructure and toughness of APL5L X80 pipeline steel after thermal welding simulation was investigated by X-ray diffraction,electron backscatter diffraction,and transmission electron *** results indicated that primary heat-affected zones can be divided into weld,coarse-grained,fine-grained,intercritical,and sub-critical *** microstructure of the weld zone is mainly composed of bainitic ferrite and a small amount of granular bainite;however,the original austenite grains are distributed in the columnar *** structure of the coarse-grained zone is similar to that of the weld zone,but the original austenite grains are *** contrast,the microstructure in the fine-grained zone is dominated by fine granular bainite,and the effective grain size is only 8.15μm,thus providing the highest toughness in the entire heat-affected *** intercritical and subcritical zones were brittle valley regions,and the microstructure was dominated by granular ***,the martensite-austenite(M/A)constituents are present in island chains along the grain boundaries,and the coarse size of the M/A constituents seriously reduces the *** results of the crack propagation analyzes revealed that high-angle grain boundaries can significantly slow down crack growth and change the crack direction,thereby increasing the material *** impact toughness of the low-temperature tempering zone was equivalent to that of the columnar grain zone,and the impact toughness was between those of the critical and fine-grained zones.

关键词： Welding thermal simulation Impact toughness Crack propagation Martensite-austenite constituent High-strength low-alloy steel weld Heat-affected zone

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

Anti-corrosive and highly reversible zinc metal anode enabled by the phenolic resin coating

引用

Rare Metals 2024年第5期43卷 2115-2124页

作者： Ya-Ping Wang Ya-Di Yang shu-Qi Duan Li Wang jia-shuo Guo An-Qiang Pan School of Materials Science and Engineering Hebei University of TechnologyTianjin 300130China Key Laboratory of Special Functional Materials for Ecological Environment and Information(Hebei University of Technology).Ministry of Education Tianjin 300130China Key Laboratory for New Type of Functional Materials in Hebei Province Hebei University of TechnologyTianjin 300130China School of Materials Science and Engineering Central South UniversityChangsha 410083China

Aqueous zinc-ion batteries have attracted much attention due to their high theoretical capacity,low cost high safety,and ***,challenges such as dendrite growth and side reactions severely hinder the electrochemical performance of the Zn anode,leading to low Coulombic efficiency(CE)or even short circuits Herein,phenolic resin(PF)is used as a protective coating on the surface of the zinc metal *** PF layer can greatly improve the corrosion resistance of the Zn electrode in the ***,this artificial electrode/electrolyte interphase also elevates the nucleation barrier and restrains Zn^(2+)2D diffusion,regulating the zinc deposition/dissolution *** a result,PF@Zn symmetric cells exhibit superior performance than that of bare Zn symmetric cells,achieving a stable and dendrite-free cycle of 1400 ***,the carbon nanotube MnO_(2)||PF@Zn(CNT/MnO_(2)||PF@Zn)full cell also delivers a long cycle life with a high-capacity retention of about 180.0 m Ah·g^(-1)after 1400 cycles,far exceeding that of bare Zn *** work provides a facile strategy for achieving a dendrite-free and rechargeable zinc anode.

关键词： Rechargeable aqueous batteries Zn metal anode Phenolic resin Anti-corrosion

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 novel transcription factor FnMYB4 regulates pigments metabolism of yellow leaf mutants in Fragaria nilgerrensis

引用

Horticultural Plant Journal 2024年第5期10卷 1134-1150页

作者： shu jiang Yi Ji jingyu Yue Mingqian Wang Yumeifeng jia Li Xue jiajun Lei College of Horticulture Shenyang Agricultural UniversityShenyangLiaoning 110866China

The strawberry species Fragaria nilgerrensis Schlechtendal ex ***,renowned for its distinctive white,fragrant peach-like fruits and strong disease resistance,is an exceptional research *** a previous study,an ethyl methane sulfonate(EMS)mutant library was established for this species,resulting in various yellow leaf *** yellowing materials are not only the ideal materials for basic studies on photosynthesis mechanism,chloroplast development,and molecular regulation of various pigments,but also have important utilization value in ornamental plants *** present study focused on four distinct yellow leaf mutants:mottled yellow leaf(MO),yellow green leaf(YG),light green leaf(LG),and buddha light leaf(BU).The results revealed that the flavonoid content and carotenoid-to-chlorophyll ratio exhibited a significant increase among these mutants,while experiencing a significant decrease in chlorophyll and carotenoid contents compared to the wild type(WT).To clarify the regulatory mechanisms and network relationships underlying these mutants,the RNA-seq and weighted gene coexpression network(WGCNA)analyses were *** results showed flavonoid metabolism pathway was enriched both in MO and YG mutants,while the chlorophyll biosynthesis pathway and carotenoid degradation pathway were only enriched in MO and YG mutants,***,key structural genes and transcription factors were identified on metabolic pathways of three pigments through correlation analyses and quantitative ***,a R2R3-MYB transcription factor,FnMYB4,was confirmed to be positively correlated with flavonoid synthesis through transient overexpression,virus-induced gene silencing(VIGS),and RNA interference(RNAi),accompanying by reoccurrence and attenuation of mutant ***,dual-luciferase(LUC)and yeast one-hybrid assays confirmed the binding of FnMYB4 to the FnFLS and FnF3H promoters,indicating that FnMYB4 positively regulates flavonoid sy

关键词： Fragaria nilgerrensis Mutant Leaf yellowing RNA-seq Flavonoid MYB

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

Carbon felt electrode coated with WS2 enables a high-performance polysulfide/ferricyanide flow battery

引用

Rare Metals 2024年第10期43卷 5039-5047页

作者： Liang-Yu Li Su Yan Ying-jia Huang Fang-Fang Zhong jin-Chao Cao Mei Ding Chuan-Kun jia College of Materials Science and Engineering Changsha University of Science and Technology Institute of Energy Storage Technology College of Energy and Power EngineeringChangsha University of Science and Technology Binzhou Institute of Technology Weiqiao-UCAS Science and Technology Park

Polysulfide/ferricyanide flow batteries （S/Fe RFBs）,with the advantages of abundant earth reservation low cost,high safety,and environmental friendliness,have attracted significant interest and demonstrated noteworthy potential for practical ***,the battery performance,including the energy efficiency （EE）,voltage efficiency （VE）,and power density of the S/Fe RFBs remains low owing to the slow redox kinetics of polysulfide *** address these concerns,WS2was selected as the booster and deposited on a commercial carbon felt electrode （WS2–CF） to stimulate the redox reactions of polysulfide *** better hydrophilicity and smaller charge-transfer resistance,WS2–CF exhibits enhanced electrochemical activity toward polysulfide redox ***,the battery performance of S/Fe RFB with WS2–CF as the anode has been improved,with EE of 84%,VE of 84%,and a peak power density of 175.7 mW·cm-2,which are all higher than the cell only with the bare carbon felt （CF） as electrodes (76%,77% and 155.8 mW·cm-2,respectively).Furthermore,the cycling life of the S/Fe RFB with WS2–CF has been prolonged to 2200 cycles with a capacity retention of 96% a 40 mA·cm-2because of the good stability of WS2–CF as the ***,under the same conditions,the S/Fe RFB without WS2–CF terminated after 1500 cycles with a fast capacity *** successful utilization of WS2as a booster on an electrode provides an efficient strategy for obtaining advanced S/Fe RFBs for practical applications.

关键词： Carbon felt Energy storage Polysulfide/ferricyanide flow battery Tungsten disulfide

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Hepatic function of glucagon-like peptide-1 and its based diabetes drugs

引用

Medical Review 2024年第4期4卷 312-325页

作者： jia Nuo Feng Tianru jin Division of Advanced Diagnostics Toronto General Research InstituteUniversity Health NetworkTorontoONCanada Department of Physiology Temerty Faculty of MedicineUniversity of TorontoTorontoONCanada Banting and Best Diabetes Centre Temerty Faculty of MedicineUniversity of TorontoTorontoONCanada Division of Advanced Diagnostics Toronto General Research InstituteUniversity Health NetworkTorontoON M5G 1L7Canada Department of Physiology Temerty Faculty of MedicineUniversity of TorontoTorontoON M5G 1L7Canada Banting and Best Diabetes Centre Temerty Faculty of MedicineUniversity of TorontoTorontoONM5G 1L7Canada

Incretins are gut-produced peptide-hormones that potentiate insulin secretion,especially after food *** concept of incretin was formed more than 100 years ago,even before insulin was isolated and utilized in the treatment of subjects with type 1 *** first incretin,glucose-dependent insulinotropic polypeptide(GIP),was identified during later 1960’s and early 1970’s;while the second one,known as glucagon-like peptide-1(GLP-1),was recognized during 1980’***,GLP-1-based therapeutic agents[also known as GLP-1 receptor(GLP-1R)agonists,GLP-1RAs]are among the first line drugs for type 2 *** addition to serving as incretin,extra-pancreatic functions of GLP-1RAs have been broadly recognized,including those in the liver,despite the absence of GLP-1R in hepatic *** existence of insulin-independent or gut-pancreas-liver axis-independent hepatic function of GLP-1RAs explains why those therapeutic agents are effective in subjects with insulin resistance and their profound effect on lipid *** a brief review on the discovery of GLP-1,we reviewed literature on the exploration of hepatic function of GLP-1 and GLP-1RAs and discussed recent studies on the role of hepatic hormone fibroblast growth factor 21(FGF21)in mediating function of GLP-1RAs in animal *** was followed by presenting our perspective views.

关键词： FGF21 GLP-1 GLP-1R GLP-1RA

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

Modulating oxygen vacancy concentration for selective growth of semiconducting single-walled carbon nanotubes with narrow diameters

引用

Journal of Materials Science & Technology 2024年第7期174卷 44-54页

作者： Lei Yang Tingkai Zhao Abdul Jalil Huijun Luo Tao jiang Yuan shu Yazhou Yin Weiyu jia NPU-NCP Joint International Research Center on Advanced Nanomaterials&Defects Engineering Shaanxi Engineering Laboratory for Graphene New Carbon Materials and ApplicationsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Department of Physics Allama Iqbal Open University IslamabadPakistan

Semiconducting single-walled carbon nanotubes(s-SWCNTs)with narrow diameters are promising for future applications in many fields,especially in nanoelectronics and *** this study,the oxygen vacancy concentration modulating strategy was utilized for growing narrow diameters s-SWCNTs by the chemical vapor deposition(CVD)*** Fe_(0.01)Mg_(0.99)O solid solution based catalyst was syn-thesized to anchor the Fe particles and inhibit aggregation for growing SWCNTs with uniform ***_(2)was introduced into the catalyst to provide oxygen vacancies through H_(2)*** oxygen vacancies could form an oxidative environment during the growth of SWCNTs,and the chemically active metallic carbon nanotube caps are selectively etched away under this *** Fe/Ce molar ratio and H2 prereduction time were optimized to modulate the oxygen vacancy ***,us-ing the Fe_(0.01)Mg_(0.99)O/CeO_(2)(3)catalyst with 10 min of H_(2)prereduction time,high purity s-SWCNTs with diameters ranging from 1.41 to 1.71 nm and a content of 95.1%were obtained with high selectivity and carbon yield(1.33 wt%).The mechanism behind this phenomenon was elucidated through experimental characterizations and first-principle simulations,further expanding the understanding of the growth of s-SWCNTs through the modulation of oxygen vacancy concentration.

关键词： Semiconducting single-walled carbon nanotubes Oxygen vacancy concentration Fe_(0.01)Mg_(0.99)O/CeO_(2)catalyst

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

Accurate prediction of biliary atresia with an integrated model using MMP-7 levels and bile acids

引用

World Journal of Pediatrics 2024年第8期20卷 822-833页

作者： Yi-jiang Han shu-Qi Hu jin-Hang Zhu Xiao Cai Deng-Ming Lai Bao-Hai Chen Kun Zhu Qiao Tong Xin-Rui Zhou jia-Le Deng jin-Fa Tou Zhuo Fang Li-Zhong Du Department of Neonatal Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhouChina Department of Data and Analytics WuXi Diagnostics Innovation Research InstituteShanghaiChina Department of Information Center Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhouChina Department of Pathology Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhouChina Department of Neonatology Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhouChina

Background Biliary atresia(BA)is a rare fatal liver disease in children,and the aim of this study was to develop a method to diagnose BA *** We determined serum levels of matrix metalloproteinase-7(MMP-7),the results of 13 liver tests,and the levels of 20 bile acids,and integrated computational models were constructed to diagnose *** Our findings demonstrated that MMP-7 expression levels,as well as the results of four liver tests and levels of ten bile acids,were significantly different between 86 BA and 59 non-BA patients(P<0.05).The computational prediction model revealed that MMP-7 levels alone had a higher predictive accuracy[area under the receiver operating characteristic curve(AUC)=0.966,95%confidence interval(CI):0.942,0.989]than liver test results and bile acid *** AUC was 0.890(95%CI 0.837,0.943)for liver test results and 0.825(95%CI 0.758,0.892)for bile acid ***,bile levels had a higher contribution to enhancing the predictive accuracy of MMP-7 levels(AUC=0.976,95%CI 0.953,1.000)than liver test *** AUC was 0.983(95%CI 0.962,1.000)for MMP-7 levels combined with liver test results and bile acid *** addition,we found that MMP-7 levels were highly correlated with gamma-glutamyl transferase levels and the liver fibrosis *** The innovative integrated models based on a large number of indicators provide a noninvasive and cost-effective approach for accurately diagnosing BA in children.

关键词： Bile aid.Biliary atresia Diagnosis Liver fibrosis Liver test MMP-7

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

Multi-stable straw-like carbon nanotubes for mechanical programmability at microscale

引用

International Journal of Smart and Nano Materials 2024年第1期15卷 95-109页

作者： jia Liu Yong Ma Wanjie Ren Fei Pan shu Guo Yuli Chen Bin Ding National Key Laboratory of Strength and Structural Integrity Institute of Solid MechanicsBeihang University(BUAA)BejingPR China Institute of Extreme Mechanics Northwestern Polytechnical UniversityXi'anShaanxiPR China Fuselage Department Shanghai Aircraft Design and Research InstituteShanghaiPR China School of Vehicle and Energy Yanshan UniversityQinhuangdaoPR China

Inspired by macroscale 3D pixel mechanical metamaterials and microscale straw-like carbon nanotube,we propose a design of multi-stable straw-like carbon nanotubes(MSCNT)via optimizing the structure of a unit to obtain multiple stable states under dis-placement loading by molecular *** unit of MSCNT is mirror-symmetrically connected two truncated graphene cones with specific apex *** switching the LJ term in AIREBO potential,we verify that the bistability of unit is co-determined by snap-through instability and microscale ***,we examine the validity of the multi-stability of the unit cells arranged in series and in *** results indicate that the MSCNT can achieve mechanical programmability in microscale,which triggers many potential applications in need of customizing nanos-cale mechanical behaviors.

关键词： Multi-stable state straw-shaped carbon nanotube microscale adhesions mechanical programmability

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

Association between Gene Polymorphisms and SNP-SNP Interactions of the Matrix Metalloproteinase 2 Signaling Pathway and the Risk of Vascular Senescence

引用

Biomedical and Environmental Sciences 2024年第2期37卷 146-156页

作者： LIAO Zhen Yu YANG shuo HU Song LIU jia MAO Yong Jun SUN shu Qin Department of Geriatrics the Affiliated Hospital of Qingdao UniversityQingdao 266000ShandongChina Department of Critical Care Medicine the Affiliated Hospital of Qingdao UniversityQingdao 266000ShandongChina

Objective This study aimed to explore the association of single nucleotide polymorphisms(SNP)in the matrix metalloproteinase 2(MMP-2)signaling pathway and the risk of vascular senescence(VS).Methods In this cross-sectional study,between May and November 2022,peripheral venous blood of151 VS patients(case group)and 233 volunteers(control group)were *** SNPs were identified in five genes encoding the components of the MMP-2 signaling pathway,assessed through carotid-femoral pulse wave velocity(cf PWV),and analyzed using multivariate logistic *** multigene influence on the risk of VS was assessed using multifactor dimensionality reduction(MDR)and generalized multifactor dimensionality regression(GMDR)*** Within the multivariate logistic regression models,four SNPs were screened to have significant associations with VS:chemokine(C-C motif)ligand 2(CCL2)rs4586,MMP2 rs14070,MMP2rs7201,and MMP2 *** of the T/C genotype of MMP2 rs14070 had a 2.17-fold increased risk of developing VS compared with those of the C/C genotype,and those of the T/T genotype had a19.375-fold increased ***2 rs4586 and MMP-2 rs14070 exhibited the most significant *** CCL2 rs4586,MMP-2 rs14070,MMP-2 rs7201,and MMP-2 rs1053605 polymorphisms were significantly associated with the risk of VS.

关键词： Vascular senescence Pulse wave velocity(PWV) Single nucleotide polymorphism(SNP) Matrix metalloproteinase 2(MMP-2) Extracellular matrix(ECM) Structural degradation Multifactor dimensionality reduction(MDR)

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

Rare earth element-modified MOF materials:synthesis and photocatalytic applications in environmental remediation

引用

Rare Metals 2024年第4期43卷 1390-1406页

作者： shu-Kun Le Qi-Jie jin jia-Ao Han Hua-Cong Zhou Quan-Sheng Liu Fu Yang Jie Miao Pei-Pei Liu Cheng-Zhang Zhu Hai-Tao Xu Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Chemical Engineering CollegeInner Mongolia University of TechnologyHohhot010050China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212100China Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications MontrealQCJ3X 1P7Canada

Metal-organic framework-like materials(MOFs)have been developed in the fields of photocatalysis for their excellent optical properties and physicochemical properties,including environmental remediation,CO_(2)photoreduction,water splitting,and so *** their important roles in various fields,rare earth elements have received growing interests from *** MOFs with rare earth elements for modification allows broadening the absorption spectrum,while the active electrons on their empty 4f orbitals can act as traps to capture photoexcited carriers to inhibit the recombination of electron-hole pairs,thus promoting photocatalytic ***,rare earth elements modified MOFs provide an attractive way to achieve their high value *** this mini-review,the synthesis of rare earth element-modified MOFs photocatalysts and corresponding applications in the removal of antibiotics,CO_(2)reduction,and hydrogen production are constructively summarized and ***,the latest advancements and current difficulties of these materials as well as the application prospects are also provided.

关键词： Rare earth metals MOFs Photocatalytic CO_(2) reduction Environmental remediation Water splitting

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

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：