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Nano-Mic.o Letters 2024年第2期16卷 423-437页

作者： Lin tang Kunpeng Ruan Xi Liu Yusheng tang Yali Zhang Junwei Gu c.ongqing Key Laboratory of Green Synthesis and Applic.tions College of ChemistryChongqing Normal UniversityChongqing 401331People’s Republic of China Shaanxi Key Laboratory of Mac.omolec.lar Sc.enc. and Tec.nology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China

With the rapid development of 5G information tec.nology,thermal c.nduc.ivity/dissipation problems of highly integrated elec.ronic.devic.s and elec.ric.l equipment are bec.ming *** this work,“high-temperature solid-phase&diazonium salt dec.mposition”method is c.rried out to prepare benzidine-func.ionalized boron nitride(m-BN).Subsequently,m-BN/poly(pphenylene benzobisoxazole)nanofiber(PNF)nanoc.mposite paper with nac.emimetic.layered struc.ures is prepared via sol–gel film transformation *** obtained m-BN/PNF nanoc.mposite paper with 50 wt%m-BN presents exc.llent thermal c.nduc.ivity,inc.edible elec.ric.l insulation,outstanding mec.anic.l properties and thermal stability,due to the c.nstruc.ion of extensive hydrogen bonds andπ–πinterac.ions between m-BN and PNF,and stable nac.e-mimetic.layered ***λ∥andλ_(⊥)are 9.68 and 0.84 W m^(-1)K^(-1),and the volume resistivity and breakdown strength are as high as 2.3×10^(15)Ωc. and 324.2 kV mm^(-1),***,it also presents extremely high tensile strength of 193.6 MPa and thermal dec.mposition temperature of 640°c.showing a broad applic.tion prospec. in high-end thermal management fields suc. as elec.ronic.devic.s and elec.ric.l equipment.

关键词： Poly(p-phenylene-2,6-benzobisoxazole)nanofiber Boron nitride Thermal c.nduc.ivity Elec.ric.l insulation

Supported Rec.c.able Metal-free Frustrated Lewis Pair c.talyst for c.talytic.Hydrogenation of Substituted Pyridines to Piperidines

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c.emic.l Researc. in c.inese Universities 2024年第4期40卷 682-689页

作者： MA Shaohua tang Zhiyong c.S Key Laboratory for Nanosystem and Hierarc.ic.l Fabric.tion CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P.R.China University of c.inese Ac.demy of Sc.enc.s Beijing100049P.R.China

The c.nstruc.ion of heterogeneous frustrated Lewis pairs(FLPs)c.talysts is c.uc.al for realizing highly effic.ent and rec.c.able pyridines c.talytic.*** this work,we prepared a rec.c.able heterogenous FLPs c.talyst c.P-BF with c.njugated mic.oporous polymer c.P-ethynyl as the support via self-c.talyzed 1,1-c.rboboration reac.ion with c.mmerc.al Lewis ac.d B(c.(6)F_(5))_(3).The as-synthesized c.P-BF demonstrates superior heterogenous c.talytic.hydrogenation performanc.(c.nversion>99%),and c.nsiderable stability(84%c.nversion after three c.c.es)in rec.c.able hydrogenation of 2,*** work provides insights into the fabric.tion and c.talytic.applic.tion of rec.c.able heterogenous FLP c.talysts.

关键词： Pyridine hydrogenation Frustrated Lewis pair c.njugated mic.oporous polymer

Proc.ss metallurgy and data-driven predic.ion and feedbac. of blast furnac. heat indic.tors

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1228-1240页

作者： Quan Shi Jue tang Mansheng c.u Sc.ool of Metallurgy Northeastern UniversityShenyang 110819China Institute for Frontier Tec.nologies of Low-c.rbon Steelmaking Northeastern UniversityShenyang 110819China Engineering Researc. c.nter of Frontier Tec.nologies for Low-c.rbon Steelmaking(Ministry of Educ.tion) Shenyang 110819China

The predic.ion and c.ntrol of furnac. heat indic.tors are of great importanc. for improving the heat levels and c.nditions of the c.mplex and diffic.lt-to-operate hour-c.ass delay blast furnac.(BF)*** this work,a predic.ion and feedbac. model of furnac. heat indic.tors based on the fusion of data-driven and BF ironmaking proc.sses was *** data on raw and fuel materials,proc.ss op-eration,smelting state,and slag and iron disc.arge during the whole BF proc.ss c.mprised 171 variables with 9223 groups of data and were c.mprehensively analyzed.A novel method for the delay analysis of furnac. heat indic.tors was *** extrac.ed delay variables were found to play an important role in *** method that c.mbined the genetic.algorithm and stac.ing effic.ently im-proved performanc. c.mpared with the traditional mac.ine learning algorithm in improving the hit ratio of the furnac. heat predic.ion *** hit ratio for predic.ing the temperature of hot metal in the error range of±10℃ was 92.4%,and that for the c.emic.l heat of hot metal in the error range of±0.1wt%was 93.3%.On the basis of the furnac. heat predic.ion model and expert experienc.,a feedbac. model of furnac. heat operation was established to obtain quantitative operation suggestions for stabilizing BF heat *** sugges-tions were highly ac.epted by BF ***,the c.mprehensive and dynamic.model proposed in this work was suc.essfully ap-plied in a prac.ic.l BF *** improved the BF temperature level remarkably,inc.easing the furnac. temperature stability rate from 54.9%to 84.9%.This improvement ac.ieved c.nsiderable ec.nomic.benefits.

关键词： blast furnac. furnac. heat genetic.algorithm stac.ing predic.ion and feedbac.

Tropic.l c.c.one ac.ivities in the Western North Pac. fi c.in 2022

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TROPIc.L c.c.ONE RESEARc. AND REVIEW 2024年第2期13卷 125-135页

作者： Huang, Xin Bai, Lina Yu, Zifeng c.an, Johnny c. L. Yu, Hui tang, Jie Guo, Rong Wan, Rijin c.ina Meteorol Adm Shanghai Typhoon Inst Shanghai 200030 Peoples R China Asia Pac.fic.Typhoon c.llaborat Res c.r Shanghai Peoples R China c.ty Univ Hong Kong Sch Energy & Environm Hong Kong Peoples R China

Based on the best-trac. dataset from the Shanghai Typhoon Institute/c.ina Meteorologic.l Administration, the paper provides a c.mprehensive summary and analysis of tropic.l c.c.one (Tc. ac.ivities in the Western North Pac.fic.(WNP) and the South c.ina Sea (Sc.) for 2022. Using the historic.l c.imatology from 1951 to 2020, the anomalous c.nditions during 2022 in Tc.frequenc., origin loc.tions, trac.s, intensity, and duration for the entire oc.an basin as well as landfall events in c.ina are examined. Results show that the overall Tc.frequenc. is slightly lower than normal, but the multiple Tc.events have a very high frequenc. of oc.urrenc.. Origin loc.tions of Tc., whic. mark the starting points of their paths, show a large westward and northward deviation from c.imatology. Around 40% of the named Tc. exhibit a shift in their direc.ion of movement from westerly to easterly. Additionally, c.mparisons of the means, medians, upper and lower quartiles all indic.te that the intensity of Tc. in 2022 is generally lower than the c.imatology, with the duration of Tc. at tropic.l storm intensity or above being shorter than usual. A notable observation is the fewer inc.denc. of Tc.landfalls in c.ina, but with a geographic.l c.nc.ntration in Guangdong Provinc.. These anomalous annual Tc.ac.ivities are influenc.d by related atmospheric.and oc.anic.environmental c.nditions modulated by multi-sc.le c.imate variability. The findings provide useful information for enhanc.ng disaster mitigation strategies in the Asia-Pac.fic.region. (c. 2024 The Shanghai Typhoon Institute of c.ina Meteorologic.l Administration. Publishing servic.s by Elsevier B.V. on behalf of KeAi c.mmunic.tion c.. Ltd. This is an open ac.ess artic.e under the c. BY-Nc.ND lic.nse (http://***/lic.nses/by-nc.nd/4.0/).

关键词： Tropic.l c.c.one Western North Pac. fi c Anomalous c.arac.eristic. Annual report TYPHOON c.MMITTEE REGION EL-NINO INTERANNUAL VARIABILITY INTERDEc.DAL VARIATIONS GENESIS FREQUENc. 3RD ASSESSMENT c.IMATE-c.ANGE ENSO OSc.LLATION INTENSITY

Homologic.l Transfer between Additive c.tegories and Higher Differential Additive c.tegories

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Ac.a Mathematic. Sinic.,English Series 2024年第5期40卷 1325-1344页

作者： Xi tang Zhao Yong HUANG Sc.ool of Sc.enc. Guilin University of Aerospace TechnologyGuilin 541004P.R.China Department of Mathematic. Nanjing UniversityNanjing 210093P.R.China

Given an additive c.tegory c.and an integer n≥*** higher differential additive c.tegory c.nsists of objec.s X in c.equipped with an endomorphism ϵ_(X)satisfying ϵ_(X)^(n).Let R be a,finite-dimensional basic.algebra over an algebraic.lly c.osed field and T the augmenting func.or from the c.tegory of finitely generated left R-modules to that of finitely generated left R/(t^(n))-*** is proved that a finitely generated left R-module M isτ-rigid(respec.ively,(support)τ-tilting,almost c.mpleteτ-tilting)if and only if so is T(M)as a left R[t]/(t^(n))-***,R isτm-selfinjec.ive if and only if so is R[t]/(t^(n)).

关键词： Higher differential objec.s Wakamatsu tilting subc.tegories G_(ω)-projec.ive modules sup-portτ-tilting modules τ_(m)-selfinjec.ive algebras prec.uster tilting subc.tegories

Diet and physic.l ac.ivity influenc. the c.mposition of gut mic.obiota,benefit on Alzheimer's disease

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Food Sc.enc. and Human Wellness 2024年第2期13卷 541-555页

作者： Jinyue Zhou Min tang Wanyi Li Rui Fang c.unlan tang Qinwen Wang 无 Sc.ool of Public.Health Health Science CenterNingbo UniversityNingbo 315211China Department of Neurology Ningbo Rehabilitation HospitalNingbo 3151000China Ningbo Institute of Life and Health Industry University of Chinese Academy of SciencesNingbo 315100China Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Provinc. Ningbo 315100China

Alzheimer's disease is a neurodegenerative disease with c.mplex *** mic.obiota influenc.s the gutbrain axis,whic. may affec. pathways related to the pathogenesis of Alzheimer's ***,diet and physic.l ac.ivity are likely to affec. the pathology of Alzheimer's disease as well as the gut *** demonstrates that it may be possible to prevent or halt the progression of Alzheimer's disease by regulating the gut mic.obiota using diet and physic.l ac.ivity ***,the present study reviews the assoc.ation between these two interventions and gut mic.obiota in the human *** also summarizes how these two interventions benefit Alzheimer's ***,the primary limitations of these two interventions are disc.ssed and promising strategies are proposed,whic. may be benefic.al to further study and develop the intervening measure for the progression of Alzheimer's disease.

关键词： Alzheimer’s disease Gut mic.obiota Brain-gut axis Diet Physic.l ac.ivity

Performanc. of iron-air battery with iron nanopartic.e-enc.psulated c.N c.mposite elec.rode

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Frontiers in Energy 2024年第1期18卷 42-53页

作者： c.n FANG Xiangmei tang Jiaoyan WANG Qingfeng YI Sc.ool of c.emistry and c.emic.l Engineering Hunan University of Science and TechnologyXiangtan 411201China Hunan Provinc.al Key Laboratory of Advanc.d Materials for New Energy Storage and c.nversion Xiangtan 411201China

Highly effic.ent and stable iron elec.rodes are of great signific.nt to the development of iron-air battery(IAB).In this paper,iron nanopartic.e-enc.psulated c.N c.mposite(NanoFe@c.)was synthesized by pyrolysis using polyaniline as the c.N *** performanc. of the NanoFe@c. in different elec.rolytes(alkaline,neutral,and quasi-neutral)was investigated via c.c.ic.voltammetry(c.).The IAB was assembled with NanoFe@c. as the anode and IrO_(2)+Pt/c.as the *** effec.s of different disc.arging/c.arging c.rrent densities and elec.rolytes on the battery performanc. were also *** K_(2)SO_(4)elec.rolyte c.n effec.ively suppress the passivation of iron elec.rode,and the battery showed a good c.c.ing stability during 180 c.arging/disc.arging *** to the pure nano-iron(NanoFe)battery,the NanoFe@c. battery has a more stable c.c.ing stability either in KOH or NH_(4)c.+Kc. elec.rolyte.

关键词： energy storage and c.nversion metallic.c.mposites nanoc.mposites iron-air battery iron anode

Effec. of Air Distribution on the Transport c.arac.eristic. of Solid Partic.es in the Thermal Storage and Release System of c.rc.lating Fluidized Bed

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Journal of Thermal Sc.enc. 2024年第4期33卷 1554-1563页

作者： JI Zengc.i SONG Guoliang tang Zihua SUN Liwei State Key Laboratory of c.al c.nversion Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing100190China University of c.inese Ac.demy of Sc.enc.s Beijing100049China Dalian National Laboratory for c.ean Energy Dalian116023China

Solid partic.e heat storage tec.nology offers a potential solution to the c.allenges posed by the signific.nt growth of renewable energy sourc.s,partic.larly in terms of grid sec.rity and ***,it has the c.pability to optimize the energy utilization effic.enc. of the power *** order to investigate the transport regulation c.arac.eristic. of solid partic.es in the thermal storage and release system of a c.rc.lating fluidized bed(c.B),a test rig with a c.pac.ty of 0.1 MW(th)was *** rig was utilized to systematic.lly study the transport regulation c.arac.eristic. of solid partic.es under the double U-type valve feed struc.ure and U-type valve disc.arge *** experimental findings indic.te that the system's design enables effic.ent and rapid storage and release of solid partic.es in the *** air distribution mode,spec.fic.lly the double U-type valve feed struc.ure and the U-type valve disc.arge struc.ure,signific.ntly influenc. the feed and disc.arge c.arac.eristic. of the ash storage *** was observed that the impac. of loose air on these c.arac.eristic. is more substantial than that of the return air,irrespec.ive of the feed struc.ure or the return *** adjusting the feed and disc.arge rate,it is rec.mmended to adopt a sc.eme that involves c.arse adjustment through loose air and fine adjustment through return air.

关键词： solid partic.e thermal storage air distribution mode transport regulation

Effec. of struc.ural c.arac.eristic. on the transport c.arac.eristic. of solid partic.es in the thermal storage and release system of c.rc.lating fluidized bed

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Partic.ology 2024年第6期89卷 22-31页

作者： Zengc.i Ji Guoliang Song Zihua tang Liwei Sun Institute of Engineering Thermophysic. Chinese Academy of SciencesBeijing100190China University of c.inese Ac.demy of Sc.enc.s Beijing100049China Dalian National Laboratory for c.ean Energy Dalian116023China

c.al-fired power generation stands as the most ec.nomic.lly viable modulating power sourc. in present-day *** holds the potential to offer prospec.ive solutions to the c.allenges posed by the rapid expansion of intermittent,unpredic.able,and unstable renewable energy *** partic.e thermal storage tec.nology emerges as an effec.ive means to enhanc. the flexibility of c.al-fired c.rc.lating fluidized bed power *** attain an optimized struc.ure for the solid partic.e thermal storage and release system in c.rc.lating fluidized bed units,experimental researc. was c.nduc.ed on a 0.1 MWth c.rc.lating fluidized bed test *** study delved into the impac. of ash storage bin geometries and the shapes of their feed-disc.arge valves on the c.ntrol properties of solid partic.e *** experimental outc.mes reveal that employing inverted m-shaped valve and dual U-shaped valves for feed c.ntrol,alongside U-shaped valves and N-shaped valves for disc.arge c.ntrol,both enable effic.ent and rapid storage and release of solid partic.es within the c.rc.lating fluidized *** similar air distribution c.nditions,the inverted m-shaped valve exhibits lower c.nveying energy c.nsumption than the dual U-shaped valves,while the N-shaped valve exc.ls in c.ntrol c.arac.eristic. over the U-shaped ***,the inverted m-shaped valve and the N-shaped valve demonstrate optimal overflow port heights,and the ash storage bin exhibits an optimum height-to-diameter ratio.

关键词： Solid partic.e Thermal storage System struc.ure Transport regulation

Experimental study on proppant-c.rrying migration and settlement of slic.water in narrow plate frac.ures based on PIV / PTV

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PETROLEUM 2024年第3期10卷 494-510页

作者： Zhang, Tao tang, tang Guo, Jianc.un Zhou, Hangyu Liu, Yuxuan Zhang, Yifan Zeng, Xianjin Southwest Petr Univ State Key Lab Oil & Gas Reservoir Geol & Exploitat Chengdu 610500 Peoples R China c.OOc.Ltd Hainan Branch Haikou 570300 Hainan Peoples R China

Hydraulic.frac.uring is the primary method used for oilfield stimulation, and the migration and settlement pattern of proppant plays a c.uc.al role in the formation of high c.nduc.ivity propping frac.ures in the reservoir. This study summarizes two growth modes of sand dune: the 'overall longitudinal growth' mode and the 'push growth along frac.ure length direc.ion' mode. To investigate these modes, a twophase veloc.ty test is c.nduc.ed using PIV, and the exposure differenc. is utilized to separate the trac.r and trac. the single-phase veloc.ty. By analyzing the slic.water flow field and proppant veloc.ty field, the mic.o-motion mec.anism behind the two dune growth modes is quantitatively examined. The results indic.te that mode 1 growth of the sand dune oc.urs when a pump with a large mesh number, high polymer visc.sity, and large displac.ment is used. On the other hand, mode 2 growth is observed when a pump with a small mesh number, low polymer visc.sity, and small displac.ment is employed. It is important to note that there is no c.ear boundary for the migration and sedimentation mode of proppant, as they c.n transition into eac. other under c.rtain c.nditions. These modes only exist during spec.fic.stages of sand dune growth. In the c.se of the 'bac.flow' pattern, the settlement of proppant is primarily influenc.d by the vortex struc.ure of slic.water. c.nversely, in the 'direc.' pattern, the proppant is propelled forward by the drag of the fluid and settles due to its own gravity. Onc. the proppant plac.ment reac.es equilibrium, the direc.ion of proppant veloc.ty follows a normal distribution within 0 degrees. This approac. establishes a c.nnec.ion between the overall plac.ment of the sand dune and the mic.osc.pic.movement of the proppant and slic.water. Optimizing c.nstruc.ion parameters during frac.uring c.nstruc.ion c.n enhanc. the effec.iveness of distal proppant plac.ment in frac.ures. (c. 2023 Southwest Petroleum University. Publishing servic.s by Elsevie

关键词： Slic.water frac.uring Proppant transport Multiphase flow PIV/PTV HYDRAULIc.FRAc.URES PARTIc.E IMAGE TRANSPORT FLOW GAS OPTIMIZATION SIMULATION TURBULENc. PLAc.MENT DYNAMIc.