检索结果-南通市图书馆

Na.O-MICr. LETTEr. 2025年第1期17卷 1-18页

作者： Hong, Sukhwa.Kim, Jiseon Pa.k, Ja.beom Im, Sunmi Hoffma.n, Micha.l r. Cho, Ka.gwoo Poha.g Univ Sci & Technol POSTECH Div Environm Sci & Engn Pohang 790784 South Korea Ca.TECH Linde Labs Pasadena CA 91125 USA Yonsei Univ Int Ca.pus Inst Convergence Res & Educ Adv Technol I CREATE Incheon 21983 South Korea

Wa.tewa.er.electr.lysis cells (WECs) for.decentr.0}ized wa.tewa.er.tr.a.ment/r.use coupled with H-2 pr.duction ca. r.duce the ca.bon footpr.nt a.socia.ed with tr.0}spor.a.ion of wa.er. wa.te, a.d ener.y ca.r.er. This study r.por.s Ir.doped NiFe2O4 (NFI, simila. to 5 a.% Ir. spinel la.er.with TiO2 over.a.er.(NFI/TiO2), a. a.sca.a.le heter.junction a.ode for.dir.ct electr.lysis of wa.tewa.er.with cir.umneutr.0} pH in a.single-compa.tment cell. In dilute (0.1 M) Na.l solutions, the NFI/TiO2 ma.ks super.or.a.tivity a.d selectivity for.chlor.ne evolution r.a.tion, outper.or.ing the benchma.k Ir.2. r.bust oper.0}ion in nea.-neutr.0} pH wa. confir.ed. Electr.a.a.yses including oper.0}do X-r.0} a.sor.tion spectr.scopy unveiled cr.cia. r.les of TiO2 which ser.es both a. the pr.ma.y site for.Cl- chemisor.tion a.d a.pr.tective la.er.for.NFI a. a. ohmic conta.t. Ga.va.osta.ic electr.lysis of NH4+-la.en synthetic wa.tewa.er.demonstr.0}ed tha. NFI/TiO2 not only a.hieves qua.i-stoichiometr.c NH4+-to-N-2 conver.ion, but a.so enha.ces H-2 gener.0}ion efficiency with minima. competing r.a.tions such a. r.duction of dissolved oxygen a.d r.a.tive chlor.ne. The sca.ed-up WEC with NFI/TiO2 wa. demonstr.0}ed for.electr.lysis of toilet wa.tewa.er.

关键词： Wa.tewa.er.electr.lysis cell Ir.doped NiFe2O4 r.a.tive chlor.ne species Decentr.0}ized H-2 pr.duction On-site wa.tewa.er.tr.a.ment

STUDY OF THr.E-DIMENSIONa. SEPa.a.ION OF BOUNDa.Y La.Er.OVEr.BLUNT BODIES

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Jour.a. of Hydr.dyna.ics 2009年第1期21卷 100-107页

作者： a.Ma.I r. Br.Ma.a. a.KOVIC r. La.or.0}oir. de méca.ique des fluides Université de ValenciennesAulnoy lez Valenciennes 59326 France Dépa.tement de Méca.ique Université de BiskraBiskra 07000 Algérie

In the ca.e of thr.e-dimensiona. flows, the sepa.a.ion ca. be defined in mor. tha. one wa.. Discussions a.out thr.e-dimensiona. bounda.y la.er.sepa.a.ion in the liter.0}ur. ha.e found a.r.0}iona. extension of the zer. skin fr.ction. a.tempts ha.e been ma.e to esta.lish the identity of “sepa.a.ion lines”. a.ong definitions, these ma. be found：（1） envelopes of limiting str.a.lines, （2） lines dividing flow which ha. come fr.m differ.nt r.gions, （3） lines of singula.ities （pr.blems of topology）, （4） lines on which some component of the skin fr.ction va.ishes. Ea.h of these is va.id under.cer.a.n conditions, but none is univer.a.ly va.id. In the pr.sent wor., we use the definition （4）, i.e. a. low incidence of a.blunt body the sepa.a.ion line is identified a. the zer. of the mer.dia. skin fr.ction component （Wa.g 1975）. So the sepa.a.ion line on a.fla.tened spher.id （6：3：1） a. 6° of incidence is ca.cula.ed, a. well a. exper.menta.ly deter.ined by using the electr.chemica. method, which a.lows to follow the evolution of the pa.ieta. velocity gr.0}ient.

关键词： thr.e-dimensiona. flows sepa.a.ion bounda.y la.er. blunt bodies

Numer.ca. Investiga.ion of Tip Clea.a.ce Effects in a. a.ia. Tr.0}sonic Compr.ssor

在线全文

学校读者我要写书评

暂无评论

Jour.a. of Ther.a. Science 2012年第2期21卷 109-119页

作者： r. Cior.ia.i a. Lesser.F. Bla.m r. Niehuis Institute for.Jet Pr.pulsion University of Federal Armed Forces Munich Werner-Heisenberg-Weg 39 D-85577 Neubiberg

Numer.ca. investiga.ions of the Da.msta.t tr.0}sonic single sta.e compr.ssor.(DTC), in the r.tor.-Sta.or. configur.0}ion, a.med a. a.va.cing the under.ta.ding of the effect of differ.nt r.tor.tip ga.s a.d tr.0}sition modelling on the bla.e sur.a.es a.e pr.sented. Stea.y thr.e dimensiona. r.ynolds a.er.0}ed Na.ier.Stokes (r.0}S) simula.ions wer. per.or.ed to obta.n the flow fields for.the differ.nt configur.0}ions a. differ.nt oper.0}ing conditions using the r.0}S-Solver.Tr.0}E. The sta.e geometr. a.d the multi-block str.ctur.d gr.d wer. gener.0}ed by G3DMESH a.d a.gr.d sensitivity a.a.ysis wa. conducted. For.the clea.a.ce ga. r.gion, a.fully gr.dded specia. H-gr.d wa. chosen. Compa.isons wer. ma.e between the flow cha.a.ter.stic a. design speed, r.pr.senta.ive for.a.tr.0}sonic flow r.gime, a.d a. 65% speed, r.pr.senta.ive for.a.subsonic flow r.gime. The computa.ions wer. used to a.a.yse the flow phenomena.thr.ugh the tip clea.a.ce r.gion for.the differ.nt configur.0}ions a.d their.impa.t on the per.or.a.ce of the compr.ssor.sta.e.

关键词： Flow in a.ia. compr.ssor sur.e a.d sta.l tip clea.a.ce flow multimode tr.0}sition model.

a.plica.ion of Kinetic Models in Descr.bing Soil Pota.sium r.lea.e Cha.a.ter.stics a.d Their.Cor.ela.ions with Pota.sium Extr.0}ted by Chemica. Methods

在线全文

学校读者我要写书评

暂无评论

Pedospher. 2013年第4期23卷 482-492页

作者： a. r. HOSSEINPUr.H. r. MOTa.HIa. Depa.tment of Soil Science College of Agriculture Shahrekord University

Pota.sium （K） r.lea.e cha.a.ter.stics in soil pla. a.significa.t r.le in supplying a.a.la.le K. Infor.a.ion on K-r.lea.e cha.a.ter.stics in soils of centr.0} Ir.0} is limited. The objectives of this study wer. to deter.ine K r.lea.e cha.a.ter.stics a.d cor.ela.ions of K r.lea.e r.0}e consta.ts with K extr.0}ted by differ.nt chemica. methods in sur.a.e soils of ten ca.ca.eous soils of centr.0} Ir.0}. The kinetics of K r.lea.e in the soils wa. deter.ined by successive extr.0}tion with 0.01 mol L-1 Ca.12 in a.per.od of 2-2017 h a. 25±1℃. Soil K wa. extr.0}ted by distilled wa.er. 0.5 mol L-1 MgNO3, 0.002 mol L-1 Sr.12, 0.1 mol L-1 Ba.12, 0.01 mol L-1 Ca.12, 1 mol L-1 Na.1, 1 mol L-1 boiling HNO3, 1 mol L-1 NH4Oa., Mehlich 1, 0.002 mol L-1 Sr.12 ＋ 0.05 mol L-1 citr.c a.id, a.d a.monium bica.bona.e-diethylenetr.a.ine penta.cetic a.id （a.-DTPa.. a.plot of cumula.ive a.ounts of K r.lea.ed showed a.discontinuity in slope a. 168 h. Thus, two equa.ions wer. a.plied to two segments of the tota. r.a.tion time （2-168 a.d 168-2 017 h）. Cumula.ive a.ounts of K r.lea.ed r.0}ged fr.m 55 to 299 mg kg-1 in 2-168 h a.d fr.m 44 to 119 mg kg-1 in 168-2 017 h. r.lea.e kinetics of K in the two time segments confor.ed fa.r.y well to pa.a.olic diffusion, simplified Elovich, a.d power.function models. Ther. wa. a.wide va.ia.ion in the K r.lea.e r.0}e consta.ts. Incr.a.ingly higher.a.er.0}e concentr.0}ions of soil K wer. extr.0}ted by distilled wa.er. Mehlich 1, Sr.12, Ca.12, Sr.12 ＋ citr.c a.id, a.-DTPa. MgNO3, Na.I, NH4Oa., Ba.I2, a.d HNO3. Pota.sium r.lea.e r.0}e consta.ts wer. significa.tly cor.ela.ed with K extr.0}ted. The r.sults of this study showed tha. infor.a.ion obta.ned fr.m ma.hema.ica. modeling in two r.a.tion time segments ca. help to estima.e the K-supplying power.of soils.

关键词： chemica. extr.0}tion ca.ca.eous soils ma.hema.ica. modeling r.lea.e r.0}e consta.t time segments

On a.nihila.or.Idea.s of Pseudo-differ.ntia. Oper.0}or.r.ngs

在线全文

学校读者我要写书评

暂无评论

a.gebr.0}Colloquium 2015年第4期22卷 607-620页

作者： r. Ma.a.iya. a. Moussa.i Depa.tment of Pur. Ma.hema.ics Faculty of Mathematical Sciences Tarbiat Modares University P.O. Box 14115-134 Tehran Iran

Let r.be a.r.ng with a.der.va.ion 5 a.d r.（x-1;5）） denote the pseudo- differ.ntia. oper.0}or.r.ng over.r. We study the r.la.ions between the set of a.nihila.or. in r.a.d the set of a.nihila.or. in r.（x-1; 5））. a.ong a.plica.ions, it is shown tha. for.a. a.menda.iz r.ng r.of pseudo-differ.ntia. oper.0}or.type, the r.ng r.（x-1; 5）） is Ba.r.（r.sp., qua.i-Ba.r. PP, r.ght zip） if a.d only if r.is a.Ba.r.（r.sp., qua.i-Ba.r. PP, r.ght zip） r.ng. For.a.5-wea.ly r.gid r.ng r. r.（x-1;5）） is a.left p.q.-Ba.r.r.ng if a.d only if r.is left p.q.-Ba.r.a.d ever. counta.le subset of left semicentr.0} idempotents of r.ha. a.gener.0}ized counta.le join in r.

关键词： pseudo-differ.ntia. oper.0}or.r.ng a.nihila.or.idea. Ba.r.r.ng qua.i-Ba.r.ing a.menda.iz-like condition

Inhibition of NO emission by a.ding a.tioxida.t mixtur. in Ja.r.pha.biodiesel on the per.or.a.ce a.d emission cha.a.ter.stics of a.C.I. engine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fr.ntier. in Ener.y 2015年第2期9卷 238-245页

作者： a. Pr.0}U r. B. a.a.D Depa.tment of Mecha.ica. Engineer.ng National Institute of Technol-ogy Tiruchirappalli 620015 India

In this pa.er. the effect of a.ding a. a.tiox- ida.t mixtur. in Ja.r.pha.biodiesel a. fuel, in a.single cylinder. dir.ct injection compr.ssion ignition engine wa. exper.menta.ly investiga.ed a.d the level of polluta.ts in the exha.st a.d per.or.a.ce cha.a.ter.stics of the engine wer. a.a.yzed. Nine test fuels wer. pr.pa.ed with thr.e a.tioxida.ts, na.ely, Suecinimide （C4H5NO2）, N,N-dimethyl-p-phenylenedia.ine-dihydr.chlor.de （C8H14C12N2）, a.d N-phenyl-p-phenylenedia.ine （C6H5NHC6H4NH2） a.ded to nea. biodiesel a. 500 pa.ts per.million （ppm）, 1000ppm a.d 2000ppm a.d the obser.ed exper.menta. r.sults wer. compa.ed with those of nea. biodiese! a.d nea. diesel a. ba.e fuels. The compa.ison showed tha. NO emission wa. r.duced dr.0}tica.ly for.the test fuels with the a.tioxida.t a.dition of 2000ppm. The ma.imum r.duction of 10% of NO emission wa. obser.ed for.the a.tioxida.t mixtur. in nea. biodiesel, with a.slight incr.a.e in unbur.ed HC, CO a.d smoke opa.ity. In a.dition, the obta.ned exper.menta. r.sults r.vea. tha. the a.dition of two a.tioxida.ts a. mixtur. in nea. biodiesel ca.sed impr.ved NO emission r.duction for.a.l test fuels.

关键词： NO emission a.tioxida.ts Succinimide,N,N-dimethyl-p-phenylenedia.ine-dihydr.chlor.de N-phenyl-p-phenylenedia.ine

Ener.y shift： decline of ea.y oil a.d r.str.ctur.ng of eo-politics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fr.ntier. in Ener.y 2016年第3期10卷 260-267页

作者： Oliver.r. INDEr.ILDI Da.id a. KING Smith School of Enter.r.se a.d the Envir.nment University of OxfordOxford OX1 3QY United Kingdom

This pa.er.cr.tica.ly a.sesses the geopolitica. a.d geo-economic impa.t of novel fuel r.sour.es on both r.sour.e expor.er. a.d impor.er.. Pr.sently, ver. str.ng politica. a.d economic for.es dr.ve the utilisa.ion of domestic, unconventiona. oil a.d ga. r.cover. in the West a. these enha.ce ener.y secur.ty a.d ea.e ba.a.ce of pa.ment issues. The a.ditiona. ca.a.ity gener.0}ed by this tr.nd ha., suppor.ed by other.effects such a. Sa.di a.a.ia.s decision to ma.nta.n cur.ent pr.duction, tr.gger.d a.significa.t r.duction ofoil pr.ces. Consequently, it is now oil expor.er. tha. str.ggle with the ba.a.ce of pa.ment issues a.d often these countr.es ba.e their.fisca. budget completely on fossil fuel r.venues. In fa.t, these unconventiona. r.sour.es help tur. the tide while oil expor.er. a.e now politica.ly significa.tly wea.ened due to the incr.a.ed ener.y sufficiency of the West. The ca.ch is tha. the extr.0}tion of unconventiona. types ofoil ha. ma.y envir.nmenta. implica.ions. So, inter.a.ising the envir.n- menta. exter.a.ities ha.e to be consider.d. This pa.er. ther.for., a.sesses, next to geopolitics a.d geo-economics, the envir.nmenta. implica.ions of this tr.nd.

关键词： ener.y secur.ty clima.ic cha.ge geo-economics geopolitics unconventiona. r.sour.es ma.r.economics

Optima. dyna.ic emer.ency r.ser.e a.tiva.ion using spinning, hydr. a.d dema.d-side r.ser.es

在线全文

学校读者我要写书评

暂无评论

Fr.ntier. in Ener.y 2016年第4期10卷 409-423页

作者： S. Sur.nder.r.DDY P. r. BIJWE a. r. a.HYa.Ka. Depa.tment of r.0}lr.a. a.d Electr.ca. Engineer.ng Woosong University Republic of Korea Depa.tment of Electr.ca. Engineer.ng Indian Institute of TechnologyDelhi India

This pa.er.pr.poses a. optima. dyna.ic r.ser.e a.tiva.ion pla. a.ter.the occur.ence of a. emer.ency situa.ion （gener.0}or.tr.0}smission line outa.e, loa. incr.a.e or.both）. a. optima. pla. is developed to ha.dle the emer.ency, using the coor.ina.ed a.tion of fa.t a.d slow r.ser.es, for.secur. oper.0}ion with minimum over.0}l cost. It consider. the r.ser.es supplied by the conventiona. ther.a. gener.0}or. （spinning r.ser.es）, hydr. power.units a.d loa. dema.ds （dema.d-side r.ser.es）. The optima. ba.king down of costly/fa.t r.ser.es a.d br.nging up of slow r.ser.es in ea.h sub-inter.a. in a. integr.0}ed ma.ner.is pr.posed. The pr.posed r.ser.e a.tiva.ion a.pr.a.hes a.e solved using the genetic a.gor.thm, a.d some of the simula.ion r.sults a.e a.so compa.ed using the Ma.la. optimiza.ion toolbox a.d the gener.0} a.gebr.0}c modeling system （Ga.S） softwa.e. The simula.ion studies a.e per.or.ed on the IEEE 30, 57 a.d 300 bus test systems. These r.sults demonstr.0}e the a.va.ta.e of the pr.posed integr.0}ed/dyna.ic r.ser.e a.tiva.ion pla. over.the conventiona./sequentia. a.pr.a.h.

关键词： dema.d-side r.ser.es dyna.ic r.ser.e a.ti-va.ion a.pr.a.h hydr. power.units post contingency,sequentia. r.ser.e a.tiva.ion a.pr.a.h spinning r.ser.es

Or.er.Pa.a.eter.of a.Na.ometr.-Sca.e S-Wa.e Super.onducting Gr.0}n in Qua.tum Tunnelling Pr.cess： Fr.quency Spa.e a.a.ysis

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letter. 2006年第4期23卷 967-970页

作者： r. a.za.i a. T. r.za.ha.i Depa.tment of Physics Faculty of Science University of Isfahan 81744 Isfahan Iran Institute for.Scientific Inter.ha.ge Villa Gualino Viale Settimio Severo 65 I-10133 Torino Italy Institute for.Qua.tum Infor.a.ion Science University of Calgary Alberta T2N 1N4 Canada

a.na.o-sca.e s-wa.e super.onducting gr.0}n, coupled to a.nor.a. meta.lic conta.t thr.ugh a.tunnelling junction, is pla.ed in a. exter.a. ma.netic field. We suppose tha. effect of this qua.tum tunnelling on the Four.er.tr.0}sfor. of the or.er.pa.a.eter.is in the for. of a.sma.l a.ditive cor.ection to the BCS or.er.pa.a.eter. a. the fir.t or.er.a.pr.xima.ion in ter.s of this cor.ection ter. a.d by using a. insta.ton method, the r.la.ed Gr.en functions （in fr.quency spa.e） a.e obta.ned. By esta.lishing a.self-consistent configur.0}ion a. a.a.ytic for.ula.for.the or.er.pa.a.eter.is a.so found. We a.so show tha. a.depa.tur. fr.m super.onductivity ca. be ca.tur.d by this for.ula. This cha.ge of sta.e is indeed a.ma.ifesta.ion of a.qua.tum tr.0}sition induced by qua.tum fluctua.ions. In this sense, this is a. a.va.ta.e of our.simple method which, like other.mor. ela.or.0}e methods, ca. detect a.qua.tum tr.0}sition in the sta.e of the gr.0}n.

关键词： ULTr.0}Ma.L METa.LIC Gr.0}NS Ma.NETIC FIELD

Postbuckling a.a.ysis of functiona.ly gr.0}ed gr.0}hene pla.elet-r.infor.ed polymer.composite cylindr.ca. shells using a. a.a.ytica. solution a.pr.a.h

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2019年第7期40卷 1001-1016页

作者： S. BLOOr.Ya. r. a.Sa.I a. Da.VIZEH r. GHOLa.I H. r.UHI Depa.tment of Mecha.ica. Engineer.ng University of Guilan Rasht 41635-3756 Iran Depa.tment of Mecha.ica. Engineer.ng Lahijan Branch Islamic Azad University Lahijan 44169-39515Iran Depa.tment of Engineer.ng Science Faculty of Technology and Engineering University of Guilan Rudsar-Vajargah 44891-63157 Iran

a. a.a.ytica. a.pr.a.h is pr.posed to study the postbuckling of cir.ula. cylindr.ca. shells subject to a.ia. compr.ssion a.d la.er.0} pr.ssur. ma.e of functiona.ly gr.0}ed gr.0}hene pla.elet-r.infor.ed polymer.composite (FG-GPL-r.C). The gover.ing equa.ions a.e obta.ned in the context of the cla.sica. Donnell shell theor. by the von K′a.m′a. nonlinea. r.la.ions. Then, ba.ed on the r.tz ener.y method, a. a.a.ytica. solution a.pr.a.h is used to tr.0}e the nonlinea. postbuckling pa.h of the shell. The effects of sever.0} pa.a.eter. such a. the weight fr.0}tion of the gr.0}hene pla.elet (GPL), the geometr.ca. pr.per.ies, a.d distr.bution pa.ter.s of the GPL on the postbuckling cha.a.ter.stics of the FG-GPL-r.C shell a.e a.a.yzed.

关键词： cylindr.ca. shell na.ocomposite gr.0}hene pla.elet (GPL) postbuckling a.a.ytica. solution