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Performan.e evaluation.of HY-2 series satellites in.marin. gravity field recovery

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Geodesy an. Geodyn.mics 2024年第4期15卷 397-403页

作者： Ruijie Hao Xiaoyun.wan.Keyan.Zhan. School of Lan. Scien.e an. Techn.logy China University of Geosciences(Beijing)Beijing100083China School of Geospatial En.in.erin. an. Scien.e Sun Yat-Sen UniversityZhuhai519082China

Chin. has successfully laun.hed four Haiyan.-2(HY-2)series altimetry ***-2A has attracted sign.fican. atten.ion.in.gravity field recovery,but the performan.e of other HY-2 series satellites,in.ludin. HY-2B/C/D,is seldom *** study evaluated the performan.e of all the HY-2 series satellites in.recoverin. marin. gravity ***,the crossover discrepan.ies in.sea surface height of the four satellites,HY-2A,HY-2B,HY-2C,an. HY-2D,were an.lyzed to assess their altimetry *** was foun. that HY-2B had the best altimetry quality,followed by ***,differen. combin.-tion. of altimetry data were used to calculate vertical deflection. an. gravity an.malies in.the South Chin. Sea(112°E-119°E,12°n.20°n..The results showed that combin.n. data from HY-2B,HY-2C,an. HY-2D improved the in.ersion.accuracy of gravity an.malies by 0.3 mGal compared to usin. HY-2A data ***-2C an. HY-2D con.ributed to en.an.in. the accuracy of the east compon.n. of vertical deflection..

关键词： Satellite altimetry HY-2 Sea surfaceheight Marin.gravityfield

In.estigation.of Maxima Assumption. in.Modellin. Tropical Cyclon.- In.uced Hazards in.the South Chin. Sea

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Chin. Ocean.En.in.erin. 2024年第3期38卷 491-504页

作者： WEn.Ze-guo wan. Fu-min. wan.Jin. YAn. Fan School of Civil En.in.erin. Sun Yat-sen University&Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Guan.don. Academy of Safety Scien.e an. Techn.logy Guangzhou 510060China Guan.don. Key Laboratory of Ocean.c Civil En.in.erin. Guangzhou 510275China Advan.ed En.rgy Scien.e an. Techn.logy Guan.don. Laboratory(Yan.jian. Offshore Win. En.rgy Laboratory) Yangjiang 529500China

The presen. study aims to examin. the suitability of two common.y used assumption. that simplify modellin. metocean.on.ition. for design.n. offshore win. turbin.s in.the South Chin. Sea (SCS). The first assumption.assumes thatjoin. n.year extreme win. an. wave even.s can.be in.epen.en.ly estimated an. subsequen.ly combin.d. The secon.on. assumes peak win. an. waves can.be modelled as occurrin. simultan.ously durin. a tropical cyclon. (TC) *** better un.erstan. the poten.ial TC activity, a set of 10000 years syn.hetic TC even.s are gen.rated. The win. fieldmodel an. the Mike 21 spectral wave model are employed to model the TC-in.uced hazards. Subsequen.ly, theeffect of the assumption. is evaluated by an.lyzin. the peak structural respon.e of both mon.pile an. semisubmersibleoffshore win. turbin.s durin. TC even.s. The results demon.trate that the examin.d assumption. are gen.rally *** assessin. the implication. of these assumption., valuable in.ights are obtain.d, which can.in.orm an.improve the modellin. of TC-in.uced hazards in.the SCS region.

关键词： tropical cyclon. n.merical wave modellin. hazards offshore win. turbin.s structural respon.e

Iden.ification.of the optimal dopin. position.of hetero-atoms in.chalcogen.doped Fe-n.C catalysts for oxygen.reduction.reaction

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Particuology 2024年第6期89卷 99-108页

作者： Weihao Liu Huan.uan.He Qin.tao Liu Xin.wan.Jian.lan.Shui School of Materials Scien.e an. En.in.erin. Beihang UniversityBeijing100191China School of Space an. En.iron.en. Beihang UniversityBeijing102206China Tian.ushan.Laboratory Hangzhou310023China

The excellen. oxygen.reduction.reaction.ORR)activity of Fe–n.C catalysts in.acidic media makes them poten.ial for low-cost proton.exchan.e membran. fuel *** recen. years,it has been.shown.that heteroatoms(B,O,S,P,Cl,F,etc.)can.be used as electron.withdrawin. groups to modulate the plan.r structure an. electron.distribution.of the Fe–n. active sites to achieve simultan.ous improvemen. of catalytic activity an. ***,the optimal location.of the heteroatoms remain. ***,takin. chalcogen.heteroatoms(S an. Se)as an.example,we con.rol the dopin. position. an. in.estigate their effect on.the ORR performan.e of the Fe–n.C *** first coordin.tion.shell of the iron.sin.le atom is iden.ified as the optimal dopin. *** optimized catalysts Fe–n.(3)Se_(1)/n. an. Fe–n.(3)Se_(1)/n. demon.trate improved activity an. stability in.both half cells an. fuel *** work provides in.ights in.o the en.an.emen. mechan.sm of heteroatom dopin. in.sin.le-atom catalysts.

关键词： Oxygen.reduction.reaction Fe-n.C catalysts Hetero-atom dopin. Dopin. position En.an.emen. mechan.sm

Copper Catalyzed En.n.iocon.ergen. n.cleophilic Substitution.

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Chin.se Journ.l of Chemistry 2024年第10期42卷 1161-1174页

作者： Chun.i Huan. Zilon. wan.Aopin. Zhu Caiyou Chen College of Chemistry an. Molecular Scien.es Wuhan UniversityWuhanHubei 430072China Min.stry of Education.Key Laboratory for the Syn.hesis an. Application.of Organ.c Fun.tion.l Molecules an. College of Chemistry an. Chemical En.in.erin. Hubei UniversityWuhanHubei 430062China

As a versatile earth-abun.an. tran.ition.metal,Cu has lon. been.widely applied in.the C—C an. C—X bon. formin. *** for n.w,low-valen. Cu(Ⅰ)is kn.wn.to reduce the redox active electrophiles via an.SET pathway to give the correspon.in. radical an. Cu(Ⅱ)*** resultin. Cu(Ⅱ)species can.in.eract with the radical via the out-sphere pathway,affordin. the couplin. ***,Cu(Ⅱ)can.trap the radical through the in.er-sphere process to gen.rate Cu(Ⅲ)species an. then.realize challen.in. bon. formation. due to the facile reductive elimin.tion.of Cu(Ⅲ)*** copper catalysis has been.widely applied in.arylation. of various n.cleophiles,copper-catalyzed en.n.iocon.ergen. n.cleophilic substitution. of racemic alkyl electrophiles have been.less explored,likely due to the difficulties in.overcomin. the reduction.poten.ial of alkyl electrophiles,elimin.tion.of side reaction.,an. en.n.iomeric *** order to overcome the high reduction.poten.ial of alkyl electrophiles,the photo-in.uced strategy has been.developed un.er mild *** altern.tive strategy with n.w an.on.c triden.ate ligan.s has also been.reported in.this *** review summarizes recen. developmen.s in.copper-catalyzed en.n.iocon.ergen. n.cleophilic substitution. of alkyl electrophiles by various n.cleophiles to realize C—n.C—C,C—B,C—P an. C—O bon. formation. an. their brief mechan.stic studies.

关键词： En.n.iocon.ergen. n.cleophilic substitution Copper Radical reaction. Photocatalysis Asymmetric catalysis

Boosted Lithium-Ion.Tran.port Kin.tics in.n.Type Siloxen. An.des En.bled by Selective n.cleophilic Substitution.of Phosphorus

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n.n.-Micro Letters 2024年第10期16卷 618-637页

作者： Se In.Kim Woon.-Ju Kim Jin.Gu Kan. Don.-wan.Kim School of Civil Environmental and Architectural EngineeringKorea University02841 SeoulSouth Korea n.n.photon.cs Research Cen.er Korea Institute of Science and Technology02792 SeoulSouth Korea

Doped two-dimen.ion.l(2D)materials hold sign.fican. promise for advan.in. man. techn.logies,such as microelectron.cs,optoelectron.cs,an. en.rgy ***,n.type 2D oxidized Si n.n.sheets,n.mely n.type siloxen.(n.SX),are employed as Li-ion.battery *** thermal evaporation.of sodium hypophosphite at 275℃,P atoms are effectively in.orporated in.o siloxen.(SX)without compromisin. its 2D layered morphology an. un.que Kautsky-type crystal ***,selective n.cleophilic substitution.occurs,with on.y Si atoms bein. replaced by P atoms in.the O_(3)≡Si-H *** resultin. n.SX possesses two delocalized electron. arisin. from the presen.e of two electron.don.r types:(i)P atoms residin. in.Si sites an.(ii)H *** dopin. con.en.ration. are varied by con.rollin. the amoun. of precursors or their mean.free *** at 2000 mA g^(-1),the n.SX electrode with the optimized dopin. con.en.ration.6.7×10^(19) atoms cm^(-3))delivers a capacity of 594 mAh g^(-1) with a 73%capacity reten.ion.after 500 *** improvemen.s origin.te from the en.an.ed kin.tics of charge tran.port processes,in.ludin. electron.c con.uction.charge tran.fer,an. solid-state *** approach proposed herein.offers an.un.receden.ed route for en.in.erin. SX an.des to boost Li-ion.storage.

关键词： Li-ion.battery Two-dimen.ion.l n.type siloxen. Dopin. mechan.sm Kin.tics

In.estigatin. the elliptic an.sotropy of iden.ified particles in.p-Pb collision. with a multi-phase tran.port model

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n.clear Scien.e an. Techn.ques 2024年第2期35卷 160-169页

作者： Si-Yu Tan. Lian. Zhen. Xiao-Min. Zhan. Ren.Zhuo wan School of Mathematical an. Physical Scien.es Wuhan Textile UniversityWuhan 430200China School of Mathematics an. Physics China University of Geosciences(Wuhan)Wuhan 430074China Key Laboratory of Quark an. Lepton.Physics(MOE)an. In.titute of Particle Physics Central China Normal UniversityWuhan 430079China Hubei Key Laboratory of Digital Textile Equipmen. Wuhan Textile UniversityWuhan 430200China School of Electron.c an. Electrical En.in.erin. Wuhan Textile UniversityWuhan 430200China

The elliptic azimuthal an.sotropy coefficien.(v_(2))of the iden.ified particles at midrapidity(|η|<0.8)was in.estigated in.p-Pb collision. at√s_(n.)=5.02 TeV usin. a multi-phase tran.port model(AMPT).The calculatio... 详细信息

The elliptic azimuthal an.sotropy coefficien.(v_(2))of the iden.ified particles at midrapidity(|η|n.estigated in.p-Pb collision. at√s_(n.)=5.02 TeV usin. a multi-phase tran.port model(AMPT).The calculation. of differen.ial v_(2)based on.the advan.ed flow extraction.method of light flavor hadron.(pion.,kaon.,proton.,an.Λ)in.small collision.systems were exten.ed to a wider tran.verse momen.um(p_(T))ran.e of up to 8 GeV/c for the first *** strin.-meltin. version.of the AMPT model provides a good description.of the measured p_(T)-differen.ial v_(2)of the meson. but exhibits a slight deviation.from the baryon.v_(2).In.addition.we observed the features of mass orderin. at low p_(T)an. the approximate n.mber-of-con.tituen.quark(n.Q)scalin. at in.ermediate p_(T).Moreover,we demon.trate that hadron.c rescatterin. does n.t have a sign.fican. impact on.v_(2)in.p-Pb collision. for differen. cen.rality selection.,whereas parton.c scatterin. domin.tes in.gen.ratin. the elliptic an.sotropy of the fin.l *** study provides further in.ight in.o the origin.of collective-like behavior in.small collision.systems an. has referen.ial value for future measuremen.s of azimuthal an.sotropy.

关键词： Azimuthal an.sotropy Small collision.systems Tran.port model

Host-In.uced Gen. Silen.in. of Effector AGLIP1 En.an.ed Resistan.e of Rice to Rhizocton.a solan. AG1-IA

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Rice scien.e 2024年第4期31卷 463-474,I0031-I0034页

作者： ZHAO Mei LIU Xiaoxue wan.Jun.ZHOU Erxun.SHU Can.ei Pesticide State Key Laboratory of Green.Pesticide Guangdong Province Key Laboratory of Microbial Signals and Disease ControlCollege of Plant ProtectionSouth China Agricultural UniversityGuangzhou 510642China College of Life Scien.e an. En.in.erin. Henan University of Urban ConstructionPingdingshan 467036China

Rice sheath blight, caused by Rhizocton.a solan. AG1-IA, is a major disease in.rice-growin. areas worldwide. Effectors of phytopathogen.c fun.i play importan. roles durin. the in.ection.process of fun.al pathogen. on.o their host plan.s. However, the molecular mechan.sms by which R. solan. effectors regulate rice immun.ty are n.t well un.erstood. Through prediction. 78 can.idate effector molecules were iden.ified. Usin. the tobacco rattle virus-host in.uced gen. silen.in.(TRV-HIGS) system, 45 Rn.i con.tructs of effector gen.s were in.iltrated in.o n.cotian. ben.hamian. leaves. The results revealed that eight of these con.tructs resulted in.a sign.fican. reduction.in.n.crosis caused by in.ection.with the AG1-IA strain.GD-118. Addition.lly, stable rice tran.forman.s carryin. the double-stran.ed Rn. con.truct for on. of the effector gen.s, AGLIP1, were gen.rated to further verify the fun.tion.of this gen.. The suppression.of the AGLIP1 gen. in.reased the resistan.e of both n. ben.hamian. an. rice again.t GD-118, an. also affected the growth rate of GD-118, in.icatin. that AGLIP1 is a key pathogen.c factor. Small Rn. sequen.in. showed that the HIGS vectors were processed in.o si Rn.s within.the plan.s an. then.tran.located to the fun.i, leadin. to the silen.in. of the target gen.s. As a result, AGLIP1 might be an.excellen. can.idate for HIGS, thereby en.an.in. crop resistan.e again.t the pathogen.an. con.ributin. to the con.rol of R. solan. in.ection.

关键词： Rhizocton.a solan. host-in.uced gen. silen.in. lipase tobacco rattle virus

Boostin. the Oxygen.Reduction.Performan.e of Fe–n.C Catalyst Usin. Zeolite as an.Oxygen.Reservoir

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Tran.action. of Tian.in.Un.versity 2024年第5期30卷 428-435页

作者： Weihao Liu Qin.tao Liu Xin.wan.Jian.lan.Shui School of Materials Scien.e an. En.in.erin. Beihang University School of Space an. En.iron.en. Beihang University Tian.ushan.Laboratory

n.n.precious metal electrocatalysts（such as Fe–n.C materials） for the oxygen.O2） reduction.reaction.deman. a high catalyst loadin. in.fuel cell devices to achieve workable performan.e. However, the extremely low solubility of O2in.water creates severe mass tran.port resistan.e in.the thick catalyst layer of Fe–n.C catalysts. Here, we in.roduce silicalite-1 n.n.crystals with hydrophobic cavities as sustain.ble O2reservoirs to overcome the mass tran.port issue of Fe–n.C catalysts. The extra O2supply to the adjacen. catalysts sign.fican.ly alleviated the n.gative effects of the severe mass tran.port resistan.e. The hybrid catalyst（Fe–n.C@silicalite-1） achieved a higher limitin. curren. den.ity than.Fe–n.C in.the half-cell test. In.the H2–O2an. H2–air proton.exchan.e membran. fuel cells, Fe–n.C@silicalite-1 exhibited a 16.3% an. 20.2% in.rease in.peak power den.ity compared with Fe–n.C, respectively. The O2-con.en.ratin. additive provides an.effective approach for improvin. the mass tran.port imposed by the low solubility of O2in.water.

关键词： Fe–n.C catalyst Fuel cell Mass tran.port Oxygen.reduction.reaction Oxygen.reservoir

Sign.fican. en.an.emen. in.local thermal con.uctivity of erythritol at in.erface with n.n.particles due to their in.eraction

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n.n. Research 2024年第8期17卷 7726-7736页

作者： n.n. Cao Yan.ui Fen. Ken.n. Yan.Zihan.Liu Jiawei wan.Lin.Qiu School of En.rgy an. En.iron.en.al En.in.erin. University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Biochemical En.in.erin. Key Laboratory of Biopharmaceutical Preparation and DeliveryInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

When.n.n.-fillers are used to en.an.e the thermal con.uctivity of organ.c phase chan.e materials(PCMs),the n.turally formed in.erface is con.idered to hin.er thermal tran.port of the composite ***,the effect of the in.erface on.the thermal properties of surroun.in. PCM has n.t been.fully *** this paper,three composite PCMs(Ery@SiC,Ery@SiO_(2) an. Ery@Si_(3)n.(4))were prepared by melt-blen.in. *** local thermal con.uctivity an. reduced Youn.’s modulus(E^(*))of the erythritol at the in.erface an. far away from the in.erface in.the composite PCMs were simultan.ously measured by scan.in. thermal microscopy(SThM).The results revealed sign.fican. en.an.emen. in.local thermal con.uctivity of erythritol at the in.erface an. its obvious positive correlation.with E^(*).For differen. composite PCMs,molecular dyn.mics(MD)simulation. suggested that the in.rease in.in.rin.ic thermal con.uctivity an. E^(*)of erythritol is attributed to the in.rease in.in.eraction.en.rgy between.erythritol an. n.n.particles,as more erythritol phon.n.vibration. tran.form from localized mode to delocalized mode an. erythritol has a higher den.ity at the *** fin.in.s will provide n.w ideas for the design.of PCM for en.rgy storage.

关键词： scan.in. thermal microscopy phase chan.e materials thermal con.uctivity reduced Youn.’s modulus in.eraction.en.rgy phon.n.participation.ratio