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Friction 2024年第9期12卷 2033-2051页

作者： Qipeng HUANG chaohua wu Xiaoliang SHI Kaipeng ZHANG School of Mechanical and Electronic Engineering Wuhan University of TechnologyWuhan 430070China School of Transportation and Logistics Engineering Wuhan University of TechnologyWuhan 430063China

Wind power gears will be excessively worn due to lubrication failure during ***,the tribological properties of rubbing pairs are improved by filling solid lubricants into surface *** texture design,three types of topological textures(circle(c),Hexagon(H),and circle/Hexagon(cH))were obtained by cell topology optimization,and then three cases with 20%,30%,and 40%density were designed for each ***,SnAgcu and Tic were deposited in texture of AISI 4140 steel(AS)to obtain 9 kinds of self-lubricating *** them,AS with 30%cH density(AS-cH30)exhibits excellent mechanical and tribological *** with AS-c and AS-H,the maximum equivalent stress of AS-cH was decreased by 10.86%and 5.37%,*** coefficient and wear rate of AS-cH30 were 79.68%and 78%lower than those of *** excellent tribological performances of AS-cH30 can be attributed to the synergistic effect of topological surface and solid *** surface can not only reduce fluctuation of equivalent stress,but also promote the stored lubricants to be easily transferred at the contact interface to form a 200 nm lubricating film containing solid lubricants(mainly),oxides and wear debris.

关键词： topological texture nano-Tic self-lubricating solid lubrication

High-stable and High-capacity Sn/SnO_(2)@c as Anode of Lithium-ion Batteries

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Journal of wuhan University of Technology(Materials Science) 2024年第4期39卷 805-813页

作者：徐天星 wu Jie 李亚娟肖宏 college of chemistry and chemical Engineering Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Micro&Nano Materials Interface Science Central South UniversityChangsha 410083China Hunan Times New Energy Technology co. LtdLuxi 416100China

We synthesized size-controllable nanoparticles with homogeneous distribution of carbon and Sn/SnO_(2)by a solvothermal *** effects of different carbon content and hydrothermal time on the composition,morphology and electrochemical properties of the materials were *** with bulk materials,nanoparticles materials not only have high specific surface area,but also can provide abundant reaction sites,thus enhancing the electrochemical activity of electrode *** importantly,the optimized microspheres Sn/8c-24 delivers a superior electrochemical performance,achieving a specific discharge capacity of 700.4 mAh·g^(-1)after 150 cycles at 0.5 A·g^(-1),and the coulomb efficiency reaches 98.65%,which is promising for anode of LIBs.

关键词： Sn anode nanoparticles hydrothermal method

Traveling wave solutions in a nonlocal dispersal SIR epidemic model with nonlocal time-delay and general nonlinear incidences

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International Journal of Biomathematics 2024年第5期17卷 101-132页

作者： Weixin wu Wenbui Zhang college of Mathematics and Systerm Science Xinjiang University Urumnqi 830017 P.R.China

This paper investigates a nonlocal dispersal epidemic model under the multiple nonlocal distributed delays and nonlinear incidence ***,the minimal wave speed c*and the basic reproduction number Ro are defined,which determine the existence of traveling wave ***,with the help of the upper and lower solutions,Schauder's fixed point theorem,and limiting techniques,the traveling waves satisfying some asymptotic boundary conditions are ***,when Ro>1,for every speed c>c^(*) there exists a traveling wave solution satisfying the boundary conditions,and there is no such traveling wave solution for any 0cc^(*) when R_(0)>1 or c>0 when R_(0)yze the effects of nonlocal time delay on the minimum wave speed.

关键词： Nonlocal distributed delay general nonlinear incidence upper and lower solutions traveling waves

Templates for the synthesis of zeolites

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chinese Journal of Structural chemistry 2024年第4期43卷 48-58页

作者： Huimin Luan Qinming wu Jianping wu Xiangju Meng Feng-Shou Xiao college of chemical and Biological Engineering Zhejiang UniversityHangzhou310027China Kente catalysts Inc. Fengxi West RoadModern Industrial ClusterXianju CountyZhejiang317300China Key Laboratory of Applied chemistry of Zhejiang Province Department of ChemistryZhejiang UniversityHangzhou310007China

Though zeolites have been successfully synthesized for several decades,the roles of templates for zeolite synthesis are still not fully understood ***,many types of templates have been employed such as inorganic alkali metal ions,organic quaternary ammonium cations,organic amines,organic quaternary phosphonium cations,metal complexes and zeolite seeds,and the roles are mainly summarized into three aspects:structure-directing,space-filling and *** order to synthesize zeolites efficiently,the proposed principles to guide zeolite synthesis are the stabilization of energy between templates and zeolite framework,charge density mis-matching(cDM)and structure matching between zeolite frameworks and *** purpose of this review is to briefly summarize the progresses in recent years,clearly showing the roles of the templates for zeolite synthesis.

关键词： Zeolites Templates Zeolite synthesis Zeolite structure

Fault Diagnosis Method of Rolling Bearing Based on MScNN-LSTM

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computers, Materials & continua 2024年第6期79卷 4395-4411页

作者： chunming wu Shupeng Zheng Key Laboratory of Modern Power System Simulation and control&Renewable Energy Technology Ministry of EducationNortheast Electric Power UniversityJilin132012China Ministry of Education Northeast Electric Power UniversityJilin132012China

Deep neural networks have been widely applied to bearing fault diagnosis systems and achieved impressive success *** address the problem that the insufficient fault feature extraction ability of traditional fault diagnosis methods results in poor diagnosis effect under variable load and noise interference scenarios,a rolling bearing fault diagnosis model combining Multi-Scale convolutional Neural Network(MScNN)and Long Short-Term Memory(LSTM)fused with attention mechanism is *** adaptively extract the essential spatial feature information of various sizes,the model creates a multi-scale feature extraction module using the convolutional neural network(cNN)learning *** learning capacity of LSTM for time information sequence is then used to extract the vibration signal’s temporal feature *** parallel large and small convolutional kernels teach the system spatial local *** gathers temporal global features to thoroughly and painstakingly mine the vibration signal’s characteristics,thus enhancing model ***,bearing fault diagnosis is accomplished by using the SoftMax *** experiment outcomes demonstrate that the model can derive fault properties entirely from the initial vibration *** can retain good diagnostic accuracy under variable load and noise interference and has strong generalization compared to other fault diagnosis models.

关键词： Bearing fault diagnosis convolutional neural network short-long-term memory network feature fusion

Electrochemical Activation-Induced Structural Transformation in Ni（OH）2/Ti3c2Tx/NF Systems with Enhanced Electrochemical Performance for Hybrid Supercapacitors

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Energy & Environmental Materials 2024年第4期7卷 277-284页

作者： chuming Xu Lu Dai yiming Zhao Shuang Li yapan wu Xueqian wu Gaixia Zhang Shuhui Sun Dongsheng Li college of Materials and chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Department of Electrical Engineering école de Technologie Supérieure (éTS) Institut National de la Recherche Scientifique (INRS) Centre énergie Matériaux Télécommunications

Exploring a novel strategy for large-scale production of battery-type Ni（OH）2-based composites,with excellent capacitive performance,is still greatly ***,we developed a facile and cost-effective strategy to in situ grow a layer of Ni（OH）2/Ti3c2Txcomposite on the nickel foam（NF） collector,where Ti3c2Txis not only a conductive component,but also a catalyst that accelerates the oxidation of NF to Ni（OH）2.

关键词： electrochemical activation hybrid supercapacitors Ni(OH)2 Ti3c2Tx

Boron neutron capture therapy of cancer:where do we stand now?

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cancer communications 2024年第8期44卷 889-892页

作者： Rolf F.Barth Gong wu Maria da Graca H.Vicente John c Grecula Nilendu Gupta Department of Pathology The Ohio State UniversityColumbusOhioUSA Mass Spectrometry and Proteomics Facility The Ohio State UniversityColumbusOhioUSA Department of chemistry Louisiana State UniversityBaton RougeLouisianaUSA Department of Radiation Oncology The Ohio State UniversityColumbusOhioUSA

1 INTRODUcTION,This is the third Editorial/commentary that one of us(***)has written relating to boron neutron capture therapy(BNcT)[1,2].For those readers who are unfamiliar with BNcT we would refer them to several recent comprehensive reviews[3–5].The second Editorial ended on a hopeful note that with the introduction of acceleratorbased neutron sources(ABNSs),BNcT would enter into the mainstream of radiation therapy[2].

关键词： boron 1,2 neutron

Revealing the Regulation Effect of Surface charge at Aromatic Interface to Dynamic conformational changes of α-Synuclein at Early Aggregation Stage

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chinese Journal of chemistry 2024年第16期42卷 1867-1876页

作者： yuqi Zhang Lie wu Xiue Jiang State Key Laboratoryof Electroanalytical chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun Jilin 130022China Schoolof Applied chemistry and Engineering University of Science and Technology of ChinaHefei Anhui 230026China Research center for Analytical Science College of ChemistryNankai UniversityTianjin 300071China

The aggregation ofα-synuclein(α-syn)is strongly influenced by membrane interfaces,but the mechanism of transition from monomers to oligomers at early aggregation stage is not ***,we investigate the adsorption and structure changes ofα-syn on oppositely charged aromatic interfaces through in-situ surface-enhanced infrared absorption(SEIRA)spectroscopy and nano-IR *** results show that the synergy of electrostatic and hydrophobic interactions leads to a“fast-slow”two-step aggregation pathway on negatively charged *** adsorption induces the formation of an extended helix structure and subsequently partial helix unwinding in NAc region,which enables the hydrophobic stacking between nearby NAc *** antiparallel β-sheet rich aggregates are gradually emerging as further interactions of monomers with the fast formed“first layer”.Monomers electrostatically adsorb on positively charged interface by c-terminus with NAc region and N-terminus stretched in solvent,which serve as an aggregation core and induce further adsorption and gradual formation of aggregates with c-terminus *** results demonstrate the modulation of surface charge and synergy of electrostatic and hydrophobic interactions on the interaction modes and aggregation pathways,which provide insights into dynamic conformation changes ofα-syn at early aggregation stage and imply the important role of spatial-temporal heterogeneity of membranes inα-synucleinopathies.

关键词： α-Synuclein Interface Early aggregation IR spectroscopy Surface analysis Analytical methods Proteins Dynamic monitoring

complicated target recognition by archaeal box c/D guide RNAs

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Science china(Life Sciences) 2024年第4期67卷 631-644页

作者： Jiayin Wang Songlin wu Keqiong ye Key Laboratory of RNA Science and Engineering CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China University of chinese Academy of Sciences Beijing 100049China

Box c/D RNAs guide the site-specific formation of 2′-O-methylated nucleotides(Nm)of RNAs in eukaryotes and *** c/D RNAs have been profiled in several archaea,their targets have not been experimentally ***,we mapped Nm in r RNAs,t RNAs,and abundant small RNAs(s RNAs)and profiled c/D RNAs in the crenarchaeon Sulfolobus *** targets of c/D RNAs were assigned by analysis of base-pairing interactions,in vitro modification assays,and gene deletion experiments,revealing a complicated landscape of c/D RNA-target interactions.c/D RNAs widely use dual antisense elements to target adjacent sites in r RNAs,enhancing modification at weakly bound *** consecutive sites can be guided with the same antisense element upstream of box D or D′,a phenomenon known as doublespecificity that is exclusive to internal box D′in eukaryotic c/D *** c/D RNAs guide modification at a single non-canonical *** study reveals the global landscape of RNA-guided 2′-O-methylation in an archaeon and unexpected targeting rules employed by c/D RNA.

关键词： c/D RNA 2′-O-methylation archaea guide RNA RNA modification

Dietary selection of commensal protists:expanding host immunity by impacting trans-kindom competition with bacteria

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2344-2346页

作者： Bo Li Min wu Huaqiong Li Department of Neonatology The Second Affliated Hospital of Wenzhou Medical University and Yuying Children’s HospitalWenzhou Medical UniversityWenzhouZhejiang 325027China Zhejiang Engineering Research center for Tissue Repair Materials Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang 325000China

In a recent publication in cell,1 Elias *** and colleagues identified novel commensal parabasalid protists(***,Parabasalia_sp_1653)with distinct metabolic traits,including diverse succinate excretion and dietary preference,which drives different trans-kingdom competition with specific commensal bacteria and results in divergent small intestine(SI)immune response,highlighting the significance of dietary interventions as a pivotal strategy for maintaining gut health(Fig.1).

关键词： immunity dietary intestine