检索结果-南通市图书馆

The interaction between KIF21A and KANK1 regulates dendritic morphology and synapse plasticity in neurons

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 209-223页

作者： Shi-Yan Sun Lingyun Nie Jing Zhang Xue Fang Hongmei Luo Chuanhai fu Zhiyi Wei Ai-Hui Tang Hefei National Research Center for Physical Sciences at the Microscale CAS Key Laboratory of Brain Function and DiseaseMinistry of Education Key Laboratory for Membrane-less Organelles and Cellular DynamicsDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefeiAnhui ProvinceChina CAS Center for Excellence in Molecular Cell Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Neurobiology School of Life SciencesSouthern University of Science and TechnologyShenzhenGuangdong ProvinceChina Brain Research Center Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina

Morphological alterations in dendritic spines have been linked to changes in functional communication between neurons that affect learning and ***-4 KIF21A helps organize the microtubule-actin network at the cell cortex by interacting with KANK1;however,whether KIF21A modulates dendritic structure and function in neurons remains *** this study,we found that KIF21A was distributed in a subset of dendritic spines,and that these KIF21A-positive spines were larger and more structurally plastic than KIF21A-negative ***,the interaction between KIF21A and KANK1 was found to be critical for dendritic spine morphogenesis and synaptic *** of either KIF21A or KANK1 inhibited dendritic spine morphogenesis and dendritic branching,and these deficits were fully rescued by coexpressing full-length KIF21A or KANK1,but not by proteins with mutations disrupting direct binding between KIF21A and KANK1 or binding between KANK1 and *** down KIF21A in the hippocampus of rats inhibited the amplitudes of long-term potentiation induced by high-frequency stimulation and negatively impacted the animals’cognitive *** together,our findings demonstrate the function of KIF21A in modulating spine morphology and provide insight into its role in synaptic function.

关键词： actin cytoskeleton dendrite KANK1 KIF21A microtubule spine morphology spine synaptic plasticity talin1

Efficient Decarboxylative/Defluorinative Alkylation for the Synthesis of gem-Difluoroalkenes through an SN2’-Type Route

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2022年第3期40卷 323-328页

作者： Wei-long Xing Jia-Xin Wang Ming-Chen fu Yao fu Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Urban Pollutant ConversionAnhui Province Key Laboratory of Biomass Clean EnergyiChEMUniversity of Science and Technology of ChinaHefeiAnhui 230026China

An efficient decarboxylative/defluorinative alkylation for synthesizing gem-difluoroalkenes is described,providing a general method for installation of the challenging alkyl fragments containing a-electron-withdrawing groups into a-trifluoromethyl *** studies suggest that this process involves an SN2,-type synthetic route in the absence of transition-metal catalysts or ***,this protocol can easily be scaled up,and successfully applied to the modification of biologically active molecules,thus complementing methodologies that give access to structurally versatile gem-difluoroalkenes.

关键词： Decarboxylation!Defluorination Alkylation C-C coupling Carboxylic acids

Metallic Sb-stabilized porous silicon with stable SEI and high electron/ion conductivity boosting lithium-ion storage performance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第9期43卷 4234-4242页

作者： Jia-Guo Deng Hao-Qin Feng Yu-long Xu Si-Guang Guo Jian-Ping Li Kai-fu Huo Ji-jiang fu Biao Gao Pual-K.Chu The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology Wuhan University of Science and TechnologyWuhan 430081China Wuhan National Laboratory for Optoelectronics(WNLO) School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074China Department of Physics Department of Materials Science&Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China

Silicon(Si)has mild discharge potential and high theoretical capacity,making it a highly desirable material for lithium-ion batteries(LIBs).Nevertheless,the excessive volume expansion,poor ion/electron conductiv ity and unstable solid electrolyte interface(SEI)hinde practical application to ***,the metallic antimony(Sb)stabilized porous Si(SiDSb)composite was prepared by magnesiothermic reduction of Sb_(2)O_(3)and Mg_(2)Si and chemical etching to remove the by-product of *** highly conductive Sb nanodots embedded in the Si liga ments promote not only the formation of conductive and stable LiF-rich SEI,but also the electron/ion transpor ability of *** to the outstanding bulk/interface stability,excellent conductivity,as well as ideal porous structure,the SiDSb electrode demonstrates a capacity of820 mAh·g^(-1)after undergoing 320 turns at 1000 mA·g^(-1).Additionally,it exhibits a stable capacity of 675 m Ah·g^(-1)when tested at a higher current density of 5000 m A·g^(-1).The results reveal a viable solution to solve three problems at the same time,namely the poor conductivity,inferior SEI and excessive volume expansion of Si,boding well for the design of Si-based materials for high-energy LIBs.

关键词： Silicon Anodes Lithium-ion batteries Antimony Solid electrolyte interphase

MEASUREMENT OF PLASMA PARAMETERS IN THE EDGE REGION OF A TOKAMAK

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 1989年第3期6卷 130-134页

作者： QIN jiang WANG long Institute of Physics Academia SinicaBeijing

A space-time resolution measurement of plasma parameters in the edge region of CT-6B tokamak has been performed using Langmuir *** diffusion in the region is of an order of the Bohm *** propagation time of MHD perturb... 详细信息

关键词： TOKAMAK tokamak interior

Recycling water glass from wet reclamation sewage of waste sodium silicate-bonded sand

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Foundry 2019年第3期16卷 198-203页

作者： Li-chi Wang Wen-ming jiang Xiao-long Gong fu-chu Liu Zi-tian Fan State Key Lab of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology

Wet reclamation of waste sodium silicate-bonded sand produces much alkaline sewage and causes pollution. Recycling water glass from wet reclamation sewage of the waste sodium silicate-bonded sand can solve pollution issues and generate economic benefits. In this work, the wet reclamation sewage was filtered, and the filtrate was causticized with a quicklime powder to produce a lye. The effects of causticization temperature, causticization time, and the amount of quicklime powder on the causticization rate were studied. The lye was used to dissolve the silica in the filtration residue to prepare a sodium silicate solution. The effects of the mass of filtration residue, dissolution temperature, and dissolution time on sodium silicate modulus were studied. Finally, the recycled water glass was obtained by concentrating the sodium silicate solution, and the bonding strength of the recycled water glass was tested. The results showed that the causticization rate could be improved by increasing the amount of quicklime powder, causticization temperature, and causticization time, and the highest causticization rate was above 92%. Amorphous silica in the filtration residue dissolved in the lye. Increasing the amount of the filtration residue, dissolution temperature, and dissolution time could improve the sodium silicate modulus. The bonding strength of the recycled water glass was close to that of commercial water glass. The recycled water glass could be used as a substitute for the commercial water glass.

关键词： waste sodium silicate-bonded sand wet reclamation sewage treatment causticization recycling water glass

A Network-Level Connected Autonomous Driving Evaluation Platform Implementing C-V2X Technology

在线全文

学校读者我要写书评

暂无评论

China Communications 2021年第6期18卷 77-88页

作者： Siyu fu Wei Zhang Zhiyuan jiang School of Communication&Information Engineering Shanghai UniversityShanghai 200444China Shanghai Institute for Advanced Communication and Data Science(Shanghai University) Shanghai 200444China

With the emerging connected autonomous driving paradigm,more advanced applications leveraging vehicular communications are drawing tremendous *** order to analyze the feasibility and performance of these applications,it is necessary to build an evaluation platform that jointly considers vehicular communication,road traffic and vehicle *** article describes our recent progress on network-level autonomous driving simulator based on the Cellular-Vehicle-to-Everything(C-V2X)protocol,and a joint platform combined with SUMO and CARLA simulators for evaluating road traffic and vehicle *** demonstrate its effectiveness,this article implements a hybrid multi-intersection scheduling scheme on the platform,and shows the advantages of the scheme in terms of traffic efficiency and fault tolerance.A remote driving application based on CARLA,wherein the interplay between communication and computation is also investigated.

关键词： performance evaluation LTE-V2X SUMO CARLA multi-intersection remote driving

On Counting Certain Abelian Varieties Over Finite Fields

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2021年第1期37卷 205-228页

作者： jiang Wei XUE Chia fu YU Collaborative Innovation Center of Mathematics School of Mathematics and StatisticsWuhan UniversityWuhan 430072P.R.China Institute of Mathematics Academia Sinica and NCTS6th FloorAstronomy Mathematics BuildingNo.1Roosevelt Rd.Sec.4Taipei 10617TaiwanChina

This paper contains two parts toward studying abelian varieties from the classification point of *** a series of papers[***.,21,1607–1643(2016)],[Taiwan Residents ***.,20(4),723–741(2016)],etc.,the current authors and *** obtain explicit formulas for the numbers of superspecial abelian surfaces over finite *** this paper,we give an explicit formula for the size of the isogeny class of simple abelian surfaces with real Weil number q1/*** establishes a key step that extends our previous explicit calculation of superspecial abelian surfaces to those of supersingular abelian *** second part is to introduce the notion of genera and idealcomplexes of abelian varieties with additional structures in a general *** purpose is to generalize the previous work by the second named author[Forum Math.,22(3),565–582(2010)]on abelian varieties with additional structures to similitude classes,which establishes more results on the connection between geometrically defined and arithmetically defined masses for further investigations.

关键词： Mass formula abelian varieties over finite fields

Effect of welding heat input on microstructure and impact toughness in CGHAZ of X100Q steel

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2019年第6期26卷 637-646页

作者： Hui-bin Wang Fei-long Wang Gen-hao Shi Yu Sun jiang-cheng Liu Qing-feng Wang fu-cheng Zhang State Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004. Hebei China Technical Center Tianjin Pipe (Group) Co. Ltd. Tianjin 300301 China National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan University Qinhuangdao 066004 Hebei China

The coarse-grained heat-affected zones (CGHAZs) of X100Q steel were reproduced via simulating their welding thermal cycles with the varying heat input (Ef) from 10 to 55 kJ/cm in Gleeble3500 system. The microstructures were characterized, and the impact toughness was estimated from each simulated sample. The results indicate that the microstructure in each simulated CGHAZ was primarily constituted of lath-like bainite. With the decreased heat input and accordingly the lowered Ar3 (the onset temperature for this transition), the prior austenite grain and the bainitic packet/block/lath substructure were refined remarkably, and the impact toughness was enhanced due to the microstructure refinement. The bainitic packet was the microstructural unit most effectively controlling the impact properties in CGHAZ of X100Q steel, due to their close correlation with the 50% fracture appearance transition temperatures, their size equivalent to the cleavage facet and their boundaries impeding the crack propagation.

关键词： X100Q bainitic steel Coarse-grained heat-affected zone Impact property Bainitic substructure Fractography

Regularity of population occurrence and migration in the oriental armyworm, Mythimna separata(Walker)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2018年第7期17卷 1482-1484页

作者： jiang Xing-fu State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academyof Agricultural Sciences

The oriental armyworm,Mythimna separata（Walker）（Lepidoptera：Noctuidae）,is a major migrant pest of grain in China and other Asian countries,causing huge crop production and economic losses nationwide *** of the uniquely difficult aspects of managing *** arises from its long-distance migratory *** example,direction and timing of winds from its overwintering regions in the south largely determine where and when large influxes of migrants arrive in the north to oviposit,making prediction of infestations difficult.

关键词： Mythimna separata Regularity of population occurrence and migration in the oriental armyworm Walker