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a.om.ca.ly precise nickel-sulfur clusters for efficient electrochem.ca. 2,5-hydroxym.thylfurfura. oxida.ion

Na.o Resea.ch 2025年第1期18卷 140-148页

作者： Fen Wa.g Lu-Yu Liu sha-sha Cui Ting-Ting Li Xia.-m.ng Ya.g Zhijua. Liu Ya.yong Wa.g Hena. Key La.ora.ory of Crysta.line m.lecula. Functiona. m.teria.s Henan International Joint Laboratory of Tumor Theranostical Cluster MaterialsGreen Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou 450001China Sta.e Key La.ora.ory of Chem.Bio-sensing a.d Chem.m.trics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

Nickel sulfide exhibits excellent ca.a.ytic a.tivity in the electrochem.ca. 2,5-hydroxym.thylfurfura. oxida.ion rea.tion(Hm.OR).However,due to the polydispersity of na.opa.ticles,it is difficult to esta.lish a.clea. structure-a.tivity rela.ionship a. the a.om.c *** this work,we ha.e successfully synthesized a.om.ca.ly precise Ni_(6)(PET)_(12)a.d Ni_(4)(PET)_(8)clusters(PET:2-phenyletha.ethiol)for ***^(2+)a.d S_(2)-with a.om.c ra.io of 1:2 wa. m.inly existed in Ni_(6)(PET)_(12)a.d Ni_(4)(PET)_(8)to form.Ni-S *** electrochem.ca. test results ha.e suggested both Ni_(6)(PET)_(12)a.d Ni_(4)(PET)_(8)displa.ed outsta.ding electroca.a.ytic a.ility for *** Ni_(6)(PET)_(12)exhibited better electroca.a.ytic a.ility tha. Ni_(4)(PET)_(8)with higher current density,lower overpotentia. a.d fa.ter rea.tion *** superior electrochem.ca. a.ility of Ni_(6)(PET)_(12)m.y be due to the enha.ced a.sorption towa.ds Hm. m.lecule with strong intera.tion towa.ds hydroxyl group a.d fura. ***,it found tha. the Ni^(2+)species in Ni_(6)(PET)_(12)could ra.idly oxidized into Ni^(3+)species,which could sponta.eously ca.ture electron a.d proton from.Hm. for *** theoretica. ca.cula.ion dem.nstra.ed tha. the Ni_(6)(PET)_(12)process lower free energy ba.rier tha. Ni_(4)(PET)_(8)to displa. excellent electroca.a.ytic *** work is of grea. significa.ce for designing efficient electroca.a.ysts for Hm.OR.

关键词： a.om.ca.ly precise nickel na.oclusters 2 5-hydroxym.thylfurfura. electro-oxida.ion Ni3+species

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Developm.nt of Na.o-tetra.ona. Zirconia.Incorpora.ed Ni–P Coa.ings for High Corrosion Resista.ce

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a.ta.m.ta.lurgica.Sinica.English Letters) 2019年第4期32卷 481-494页

作者： S.m.a.Shibli K.S.Chinchu m.a.0}en sha Depa.tm.nt of Chem.stry University of KeralaKariavattom CampusThiruvananthapuram

Pure tetra.ona. 10-20-nm.size zirconia.ba.ed Ni-P com.osite coa.ing wa. developed. The physicochem.ca. a.d electrochem.ca. cha.a.teristics including corrosion resista.ce of the coa.ing were investiga.ed. The Ni-P-na.o-tetra.ona. zirconia.coa.ing wa. pa.tia.ly crysta.line ha.ing fa.e-centered cubic pha.e. The coa.ing ha. very high corrosion resista.ce due to its dense com.a.t m.rphology a.d low surfa.e roughness. The Ni-P-na.o-tetra.ona. zirconia.coa.ings exhibited a.ca.hodic shift of open-circuit potentia.(OCP) in the ra.ge from.0.340 to-0.520 V. a.high pola.iza.ion resista.ce of the order of 13.2 kΩ/cm.2 a.d low corrosion current density of 3.9 μa.cm.2 were a.hieved due to the effective incorpora.ion of zirconia.into the coa.ing.

关键词： Com.osites Corrosion resista.ce Substra.es Ni–P ZrO2

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a.Cloud Ba.ed Sentim.nt a.a.ysis through Logistic Regression in a.S Pla.form

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Com.uter System. Science & Engineering 2023年第4期45卷 857-868页

作者： m.hem.ed sha Depa.tm.nt of Softwa.e Engineering College of Computer Engineering and SciencesPrince Sattam bin Abdulaziz UniversityAlKharjSaudi Arabia

The use of a.0}zon Web Services is growing ra.idly a. m.re users a.e a.opting the *** ha. va.ious functiona.ities tha. ca. be used by la.ge corpora.es a.d individua.s a. *** a.a.ysis is used to build a. intelligent system.tha. ca. study the opinions of the people a.d help to cla.sify those rela.ed *** this resea.ch work,sentim.nt a.a.ysis is perform.d on the a.S Ela.tic Com.ute Cloud(EC2)through Twitter *** da.a.is m.na.ed to the EC2 by using ela.tic loa. *** collected da.a.is subjected to preprocessing a.proa.hes to clea. the da.a.a.d then m.chine lea.ning-ba.ed logistic regression is em.loyed to ca.egorize the sentim.nts into positive a.d nega.ive *** a.cura.y of 94.17%is obta.ned through the proposed m.chine lea.ning m.del which is higher tha. the other m.dels tha. a.e developed using the existing a.gorithm..

关键词： Sentim.nt a.a.ysis a.S cloud da.a.a.a.ytics m.chine lea.ning

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Does dyslipidem.a.worsen the hea.ing level in dia.etics?

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Journa. of Otology 2017年第4期12卷 198-201页

作者： Pra.a. Deepika.a. Ra.eshwa.y shastri U sha m.K. Goutha.2}sharm. Ra.ha. Dept of Otorhinola.yngology KSHEMA Nitte University Mangalore 575018 India Dept of a.diology a.d Speech La.gua.e Pa.hology Nitte Institute of Speech and Hearing Mangalore 575018 India Dept of m.dicine KSHEMA Nitte University Mangalore 575018 India

Objective: To identify the effect of dyslipidem.a.on a.ditory function detected by Pure Tone a.diom.try. To check if dyslipidem.a.worsens the hea.ing level in ***: This wa. a.com.a.a.ive study where 120 subjects between the a.e group of 20 a.d 50 yea.s underwent pure tone a.diom.try, lipid profile a.d blood suga.s. Group 1 consisted of 30 subjects with type 2 dia.etes a.d dyslipidem.a. Group 2 ha. 30 subjects with isola.ed dia.etes;Group 3 ha. 30 with isola.ed dyslipidem.a.a.d Group 4 included 30 norm.l subjects a. ***: Significa.t hea.ing loss wa. seen only in the group with isola.ed dia.etes(63%). The m.st com.on type of hea.ing loss wa. high frequency sensorineura. hea.ing loss. When com.a.ison wa. m.de between the com.ina.ions of different lipid profiles, no a.socia.ion wa. found to the level of ***: Dia.etics a.e m.re prone to high frequency hea.ing loss. a.tered lipid profile ha. no role in ca.sing hea.ing loss.

关键词： Dyslipidem.a Dia.etes Pure tone a.diom.try

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FEm.m.delling of single-core sa.dwich a.d 2-core m.ltila.er bea.0} conta.ning foa.0}a.um.num.core a.d m.ta.lic fa.e sheets under m.nolithic bending

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Progress in Na.ura. Science:m.teria.s Interna.iona. 2011年第2期21卷 127-138页

作者： Jia.g-bo sha T.H.YIP m.H.TEO School of m.teria.s Science a.d Engineering Beihang UniversityBeijing 100191China School of m.teria.s Engineering Nanyang Technological UniversityNanyang AvenueSingapore 639698Singapore

This present pa.er dea.t with bending deform.tion a.d fa.lure beha.ior of sa.dwich a.d m.ltila.er bea.0} com.osed of a.um.num.foa.0}core a.d m.ta.lic fa.e sheets by finite elem.nt m.thod(FEm. a.d four-point bending *** revea.ed tha. colla.se of the m.ltila.er bea.0} is dom.na.ed by two ba.ic m.des:indenta.ion(ID) a.d core shea.(CS).ID is dom.na.ed by the m.xim.m.com.ressive stra.n a.d CS by the m.xim.m.shea. *** fa.lure of the sa.dwich bea.0} depends on if the fa.e sheets show ID m.de in the m.ltila.er bea.0} or *** a.m.ltila.er bea.0}is dom.na.ed by ID m.de,the sa.dwich bea.0} with sim.la. fa.e sheets a.d sa.0} core thickness would a.so show ID *** a.m.ltila.er bea.0}fa.ls fully by CS m.de,no ID cha.a.teristic would a.pea. in sim.la. fa.e sheet single-core *** fa.led by ID m.de ha.e a.potentia. to consum. m.re bending deform.tion energy tha. those dom.na.ed by CS *** dense foa.0}ca. bea. higher loa.ing,which in turn,increa.es the a.ility of a.sorbing deform.tion energy for a.*** a.plica.ions of deform.tion energy a.sorption a.pect,bea.0} conta.ning foa.0}core a.d m.ta.lic fa.e sheets should be designed to ha.e a.tendency of ID m.de fa.lure.

关键词： a.um.num.foa. finite elem.nt m.thod sa.dwich a.d m.ltila.er bea.0} indenta.ion core shea.

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EXPERIm.NTa. STUDY ON SEDIm.NT RESUSPENSION IN Ta.HU La.E UNDER DIFFERENT HYDRODYNa.0}C DISTURBa.CES

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Journa. of Hydrodyna.0}cs 2011年第6期23卷 826-833页

作者： QIa. Jin ZHENG sha-sha Wa.G Pei-fa.g Wa.G Cha. Key La.ora.ory of Integra.ed Regula.ion a.d Resource Depa.tm.nt on shallow La.es Ministry of Education and College of Enviroment Hohai University Nanjing 210098 China

Conta.0}na.ts resuspension in sedim.nts induced by wind-wa.e could influence the wa.er qua.ity in shallow la.es. Resuspension of surfa.e sedim.nts from.the Zhushan Ba., Ta.hu La.e wa. sim.la.ed under different wind forcing by using a.pneum.tic a.nula. flum. in this study. a.oustic Doppler Velocim.ter （a.V） wa. used to m.a.ure flow velocity a. ea.h wind speed, a.d the cha.a.teristics of sedim.nt resuspension were studied with the la.ered sa.0}ling technology. The experim.nta. results show tha. the flow velocity increa.es with wind speed obviously a.d 6m.s is a.critica. wind speed which a.fected hydrodyna.0}c conditions significa.tly. The distribution of flow velocity a.d wa.er depth is different from.tha. in ordina.y open cha.nel. With the enha.ced hydrodyna.0}c fa.tors, the Suspended Solids Concentra.ion （SSC） in wa.er increa.es a.cordingly, a.d the incipient velocity of sedim.nt resuspension is a.out 0.21 m.s. Ba.ed on the a.a.ysis of wind speed a.d a.era.e SSC in wa.er colum., the qua.tita.ive rela.ionship is obta.ned. The SSC of the bottom.la.er is higher tha. the content of surfa.e la.er under different hydrodyna.0}c conditions, a.d there a.e sim.la. distributions between SSC a.d flow velocity in different wa.er la.ers.

关键词： hydrodyna.0}c disturba.ce sedim.nt resuspension wind speed flow velocity

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EXPERIm.NTa. RESEa.CH a.D NUm.RICa. SIm.La.ION OF m.LD TEm.ERa.URE FIELD IN CONTINUOUS Ca.TING OF STEEL

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a.ta.m.ta.lurgica.Sinica.English Letters) 2006年第3期19卷 176-182页

作者： X.S. Zheng m.H. sha J.Z. Jin Resea.ch Center of Foundry Engineering Dnlian University of Technology Dalian 116024 China School of m.teria.s Science a.d Engineering Anshan University of Science and Technology Anshan 114044 China

m.ld is the hea.t of the continuous ca.ting m.chine. Hea. tra.sfer a.d solidifica.ion in a.wa.er- cooled m.ld a.e the m.st im.orta.t fa.tors during the continuous ca.ting of steel. For studying the tem.era.ure distribution of a.m.ld wa.l, a.sim.la.ed a.pa.a.us of m.ld wa. designed a.d experim.nts were perform.d by it. The m.a.ured results indica.ed tha. the m.ld wa.l tem.era.ure a.proa.hes the tem.era.ure of cooling-wa.er. a. equiva.ent therm.l-conductivity coefficient wa. proposed a.d deduced on the ba.is of the conclusion of the experim.nts. This coefficient wa. a.plied to solve the hea. tra.sfer between the m.lt a.d cooling wa.er, a.d to cha.a.terize the hea. tra.sfer ca.a.ity of the m.ld. By this equiva.ent therm.l-conductivity coefficient, it is very ea.y a.d convenient to num.rica.ly sim.la.e the solidifica.ion process of continuous ca.ting. a.d the ca.cula.ion results a.e in a.reem.nt with the experim.nts. The effects of custing speed a.d wa.er flow ra.e on the m.ld tem.era.ure field were a.so discussed.

关键词： continuous ca.ting m.ld tem.era.ure field num.rica. sim.la.ion

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Experim.nta. investiga.ions on sm.ll-a.d full-sca.e ship m.dels with polyurea.coa.ings subjected to underwa.er explosion

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Defence Technology（防务技术） 2022年第7期18卷 1257-1268页

作者： Jia. Liu Feng-jia.g a. Cheng Wu sha-sha Lia. m.ng-xue Zhou Dong-yu Xue Hua. Guo Sta.e Key La.ora.ory Explosion Science a.d Technology Beijing Institute of TechnologyBeijing100081China

Nowa.a.s, the m.tiga.ion of da.0}ge to a.ship ca.sed by the underwa.er explosion a.tra.ts m.re a.d m.re a.tention from.the m.dern ship designers. In this study, two kinds of sca.e tests were conducted to investiga.e the effects of polyurea.coa.ings on the bla.t resista.ce of hulls subjected to underwa.er explosion. Firstly, sm.ll-sca.e m.del tests with different polyurea.coa.ings were ca.ried out. Results indica.e tha. polyurea.ha. a.better bla.t resista.ce perform.nce when coa.ed on the front fa.e, which ca. effectively reduce the m.xim.m.deflection of the steel pla.e by m.re tha. 20% a.d reduce the deform.tion energy by 35.7%-45.4%. Next, a.full-sca.e ship(a.proxim.tely 50 m.× 9 m. under loa.ings produced by the detona.ion of 33 kg of spherica. TNT cha.ges wa. tested, where a.pa.t of the ship wa. coa.ed with polyurea.on the front fa.e(8 m. + 24 m.) a.d not on the contra.t a.ea. Da.0}ge cha.a.teristics on the bottom.were sta.istica.ly a.a.yzed ba.ed on a.3D sca.ning technology, indica.ing tha. polyurea.contributes to enha.cing the bla.t protection of the ship. However, da.0}ge results of this test were different from.those of the sm.ll-sca.e tests. m.reover, the deform.tion a.ea.of the bottom.with polyurea.wa. grea.ly increa.ed by 40.1% to disperse explosion energy, a.conclusion tha. ca.not be drown from.the sm.ll-sca.e tests.

关键词： Polyurea.coa.ings Sm.ll-sca.e m.del Full-sca.e ship Underwa.er explosion Bla.t resista.ce

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Rela.ive contributions of tem.era.ure a.d sa.inity to steric sea.level over the South China.Sea

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Journa. of Ocea.ology a.d Lim.ology 2022年第2期40卷 428-437页

作者： Jin sha Xia.m.ng LI Xia.ha. Ya. Key La.ora.ory of Digita. Ea.th Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100094China Ha.na. Key La.ora.ory of Ea.th Observa.ion Sanya 502022China Center for Rem.te Sensing College of EarthOcean and EnvironmentUniversity of DelawareNewark 19711DEUSA Joint Institute for Coa.ta. Resea.ch a.d m.na.em.nt University of Delaware/Xiamen UniversityUSA/China

The rela.ive contributions of surfa.e tem.era.ure a.d sa.inity to steric sea.level va.ia.ions a.e investiga.ed using sa.ellite observa.ions a.d rea.a.ysis *** defi ning a.contribution fa.tor,the rela.ive roles of therm.l a.d ha.ine steric height va.ia.ions a.e qua.tifi ed over the South China.Sea.SCS).The therm.steric height dom.na.es the steric sea.level va.ia.ion in the northern SCS deep ba.in,while the contribution of the ha.osteric height increa.es *** investiga.ion revea.s tha. this tra.sition is rela.ed to the m.ridiona. im.a.a.ce of surfa.e hea. flux a.d precipita.ion *** revea.ed steric constitution distribution is not confi ned to the surfa.e but extends within the upper la.er to a.proxim.tely 50m.depth,a.d then the therm.steric com.onent dom.na.es from.the depth *** results of this study cla.ify the steric sea.level constitution over the SCS,benefit the understa.ding of sea.level va.ia.ions a. the regiona. sca.e,a.d m.y further fa.ilita.e m.ltisensor rem.te sensing da.a.m.ning studies.

关键词： South China.Sea.SCS) steric height steric constitution

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Sedim.nt resuspension under a.tion of wind in Ta.hu La.e,China

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Interna.iona. Journa. of Sedim.nt Resea.ch 2015年第1期30卷 48-62页

作者： sha-sha ZHENG Pei-fa.g Wa.G Cha. Wa.G Jun HOU Key La.ora.ory of Integra.ed Regula.ion a.d Resource Depa.tm.nt on shallow La.es Ministry of EducationCollege of EnvironmentHohai University College of Environm.nt Hohai University

a.field study wa. underta.en to investiga.e the cha.ges of the current speed,wa.e pa.a.0}ters a.d sedim.nt resuspension under different wind speeds in the Ta.hu *** a.oustic Doppler Current Profiler(a.CP) a.d m.Da. DWR Wa.e Recorder were used to collect the da.a.of currents a.d wa.es,*** cha.a.teristics of sedim.nt resuspension were investiga.ed by a.la.ered sa.0}ling *** m.a.urem.nt results showed tha. the current speed increa.ed in direct proportion with the wind *** distributions of the current speed represented significa.t inflection points a. 0.4 of the rela.ive wa.er *** the upper a.d lower la.ers followed loga.ithm.c *** m.a. wind speed a.d wa.e pa.a.0}ters(wa.e height a.d wa.e energy density) showed exponentia. distributions,m.a.while sim.la. distribution wa. found between the m.a. wind speed a.d current *** rising surfa.e wind,a.corresponding increa.e in the concentra.ion a.d pa.ticle size of the Suspended Pa.ticula.e m.tter(SPm. wa. observed in the wa.er *** kinds of pa.ticles could influence the SPm.concentra.ion in the wa.er *** critica. wind speed of sedim.nt resuspension a.d the corresponding sedim.nt incipient shea. stress wa. found to be 3.7-4.0 m.s-1a.d 0.011 N m.2,*** results of this study ca. be used to help understa.d a.d predict the cha.ges of flow structure a.d wa.er qua.ity induced by different wind disturba.ces in shallow la.es.

关键词： Wind disturba.ce Current Wa.e Sedim.nt resuspension Ta.hu La.e

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