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Study of boun.ary layer characteristics durin. the lan.fallin. of a n.sarg. cyclon.

TROPICAL CYCLOn. RESEARCH An. REVIEW 2024年第2期13卷 55-71页

作者： Pawar, Ran. P. Priyadarshin., Prajn. Dharmaraj, T. n.de, Dada P. Patil, mahen.ra n. Patil, Omkar m. Victor, n. Jen. Pawar, Sambhaji m. Kan.se, D. g. Pawar, Sun.l D. In.ian.In.t Trop meteorol Minist Earth Sci Pune Maharashtra India Bharati Vidyapeeths Dr Patan.rao Kadam mahavidya Dept Phys Sangli India IIg KSK Geomagnet Res Lab Allahabad Uttar Pradesh India San.ay g.odawat Un.v Kolhapur Dept Phys Kolhapur India

On. of the most importan. parameters in.meteorolog. is the mean.win. pro fi le in.the tropical cyclon. boun.ary layer. The vertical pro fi le of win. speed an. win. direction.were measured durin. the period of the n.sarg. cyclon. from may 31st, 2020, to Jun. 5th, 2020, usin. the n.wly in.talled Phased Array Doppler Sodar system at the Cen.er for Space an. Atmospheric Scien.e (CSAS), San.ay g.odawat Un.versity, Kolhapur (16.74 deg.ees n. 74.37 deg.ees E; n.ar In.ia ' s western.coast). Our an.lysis revealed that the maxim.m mean.win. speed was 17 m/s on.Jun. 3, 2020, at 10:00 IST. It also shows the chan.e in.win. direction.from southwest to southeast on.Jun. 2 an. 3, 2020. Daily hig.-resolution.rean.lysis data in.the domain. 0 - 25 deg.ees n. 65 - 110 deg.ees E, durin. the period from may 31st to Jun. 5th, 2020, revealed the variation.of the atmospheric pressure of the n.sarg. cyclon. from 1000 to 1008 hPa, sea surface temperature (SST) between.30 deg.ees C an. 31 deg.ees C, outg.in. lon.wave radiation.(OLR) between.100 an. 240 Wm-2 , win. speed between.3 an. 15 m/s, an. low values of vertical win. shear (VWS) were observed to the n.rth of n.sarg. track. These observation. may provide more in.ig.ts for the study of boun.ary layer turbulen.e durin. cyclon.c activities. (c) 2024 The Shan.hai Typhoon.In.titute of Chin. meteorolog.cal Admin.stration. Publishin. services by Elsevier B.V. on.behalf of KeAi Commun.cation.Co. Ltd. This is an.open.access article un.er the CC BY licen.e (http://***/licen.es/by/4.0/).

关键词： Phased Array Doppler Sodar Tropical cyclon. Atmospheric boun.ary layer Vertical turbulen.e in.en.ity VERTICAL WIn. SHEAR TROPICAL CYCLOn.S SODAR OBSERVATIOn. g.AVITY-WAVES PERSPECTIVES TEmPERATURE In.En.ITY mOn.OOn BEn.AL BAY

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Fuel cell stack desig.0}an. modellin. with a double-stag. boost con.erter coupled to a sin.le-phase in.erter

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CLEAn.En.Rg. 2024年第1期8卷 188-196页

作者： Eln.g., Basem E. Ismaiel, Ahmed m. man.our, Han. S. E. Abd-Alwahab, m. n. Suez Can.l Un.v Fac Engn Elect Engn Dept Ismailia 41522 Egypt

A comprehen.ive proton.exchan.e membran. fuel cell stack model was developed an. in.eg.ated with a two-stag. DC/DC boost con.erter. It was directly coupled to a sin.le-phase (two levels-four pulses) in.erter without a tran.former. The pulse-width modulation.sig.0}l was used to in.epen.en.ly reg.late every con.erter phase. The con.erter was modelled usin. a mATLAB (R)/Simulin. (R) en.iron.en. an. an.appropriate voltag. con.rol method. The an.lysis features of the sug.ested circuit were created an., throug. established experimen.s, the simulation.results were verified. A sin.le-phase (two levels-four pulses) in.erter con.rol circuit was tested an. it produced a pure sin.soidal waveform with voltag. con.rol. It matches the voltag. of the n.twork in.terms of amplitude an. frequen.y. A sin.soidal pulse-width modulation.approach was performed usin. a sin.le-phase (two levels-four pulses) pulse-width modulation.in.erter. The results demon.trated an.en.an.emen. in.the stan.ard of the output wave an. tun.d the dead time with a reduction.of 63 mu s compared with 180 mu s in.con.en.ion.l techn.ques. A comprehen.ive model of a proton.exchan.e membran. fuel cell stack is in.eg.ated with a sin.le-phase (two levels-four pulses) in.erter without a tran.former. Pulse-width modulation.is used to in.epen.en.ly reg.late every con.erter phase. As a result, the dead time is reduced compared to con.en.ion.l techn.ques. g.aphical Abstract

关键词： PEm fuel cell pulse-width modulation sin.le-phase in.erter an. double-stag. DC/DC boost con.erter PERFORmAn.E SYSTEm

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Experimen.al validation.of double-fed in.uction.g.n.rator in.oscillatin. water column.usin. circulatory system-based optimization

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CLEAn.En.Rg. 2024年第2期8卷 127-143页

作者： Eln.g.i, Basem E. Ismaiel, Ahmed m. Abdel-Kader, Fathy El Sayed mohammed, Reham H. Abelwhab, m. n. Suez Can.l Un.v Elect Power & Machine Dept Ismailia Egypt men.ufia Un.v Fac Engn Elect Machine & Power Dept Menoufia Egypt Suez Can.l Un.v Comp & Control Dept Ismailia Egypt

This paper validates the optimal operation.for a g.id-con.ected double-fed in.uction.g.n.rator (DFIg. in.an.oscillatin. water column.power plan. (OWCPP). This study presen.s a n.vel optimization.techn.que called the circulatory system-based optimization.(CSBO) approach to develop six adaptive fuzzy log.c con.rollers (AFLCs) with 30 parameters an. compare them to chaotic-billiards optimization.(C-BO) an. g.n.tic alg.rithm (g.). The proposed con.roller is also compared with a proportion.l-in.eg.al differen.ial (PID) con.roller based on.a self-adaptive g.obal-best harmon. search (Sg.S). CSBO-based AFLCs are fully in.estig.ted un.er differen. scen.rios an. experimen.ed with usin. a real-time in.erface DSP1104. The results of usin. CSBO-AFLCs revealed a fast time respon.e, fast con.erg.n.e, less overshoot an. min.mal error compared with those achieved with C-BO-AFLC, Sg.S-PID an. g.-AFLC durin. differen. case studies. The CSBO-based AFLCs en.ure maxim.m power from the DFIg.in.an.OWCPP an. en.an.e dyn.mic respon.e with very low errors. The results show that the CSBO shows better power trackin. by 25% as compared with C-BO, by 45% when.compared with the g. an. by 56% when.compared with PID. moreover, the in.eg.al absolute errors of six con.rollers are in.estig.ted to demon.trate the feasibility of CSBO-AFLC. The root mean.square of the errors of six con.rollers usin. CSBO is improved by 68.27% when.compared with g., by 22.57% when.compared with C-BO an. by 38.42% when.compared with PID. These in.icators demon.trate the feasibility of CSBO when.compared with other alg.rithms with the same OWCPP. This paper validates the optimal operation.of a g.id-con.ected double-fed in.uction.g.n.rator in.an.oscillatin. water column.usin. a n.vel optimization.techn.que called the circulatory system-based optimization.approach. Experimen.s usin. a real-time simulator demon.trate the feasibility of the approach when.compared with other alg.rithms. g.aphical Abstract

关键词： circulatory system-based optimization.approach adaptive fuzzy log.c con.roller g.id-tied oscillatin. water column.power plan. maxim.m power poin. trackin. WAVE En.Rg.-COn.ERSIOn DESIg.0}OPTimIZATIOn ALg.RITHm COn.ROLLER TURBIn.

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mag.0}tic,dielectric an. electrical modulus of Ce^(3+) doped cobalt-mag.0}sium ferrite n.n.particles

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Journ.l of Rare Earths 2024年第2期42卷 373-382,I0005页

作者： n.m.Basfer Han.a Almag.amsi Departmen. of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Departmen. College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In.this work,the mag.0}tic,dielectric properties an. electric modulus of Ce^(3+) substituted cobaltmag.0}sium(Co_(0.7)mg.(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as CmCF) ferrite n.n.particles were in.estig.ted in.*** mag.0}tization.decreases from 50.05 to 34.87 emu/g.for further substitutin. Ce^(3+) ***,coercivity in.reases from 738.22 g. for the CmCFO sample to 912.10 g. for the CmCF2 sample,then.decreases mon.ton.cally to 762.1 g. for the CmCF5 *** cerium con.en. an. particle size play importan. roles in.con.rollin. the mag.0}tization.an. coercivity of the CmCF *** CmCF n.n.ferrites are suitable for microwave application. sin.e their hig.-frequen.y respon.e ran.es from 7.72 to 11.07 *** CmCF n.n.ferrites' dielectric parameter dispersion.exhibits n.rmal *** pristin. Co-mg.n.n.ferrite on.y has ε' value of 28.25,but the n.n.ferrite mCmF2 has ε' value of365.03,with an.en.an.in. ratio of 1192%.The con.uction.mechan.sm of the mCmF n.n.ferrites was determin.d by fittin. the σ_(ac) results via the Jon.cher power *** 653 K,larg. polaron.tun.ellin. is thoug.t to be respon.ible for this con.uction.process,which is followed by electron.barrier hoppin. at hig.er ***-Cole diag.ams at differen. temperatures,assurin. the con.ribution. of the g.ain. an. their boun.aries at lower temperatures(653 K) an. on.y the g.ain. at hig.er *** on.our results,the CmCF n.n.ferrites hold mag.0}tic an. semicon.uctin. n.ture,which can.be used in.mag.0}tic devices an. dielectrics in.lower-frequen.ies or con.uctors in.hig.er-frequen.ies.

关键词： n.n.ferrites Rare earth ion. mag.0}tic properties Dielectric parameters impedan.e spectroscopy

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Acetylaceton.-TiO_(2) Promoted Larg. Area Compatible Cascade Electron.Tran.port Bilayer for Efficien. Perovskite Solar Cells

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En.rg. & En.iron.en.al materials 2024年第2期7卷 221-228页

作者： Hyon. Joon.Lee Jin.Kyoun. Park Jin.Hyuck Heo San. Hyuk im Departmen. of Chemical an. Biolog.cal En.in.erin. Korea University145 Anam-ro Seongbuk-guSeoul 17104Korea

In.desig.0}n. efficien. perovskite solar cells(PSCs),the selection.of suitable electron.tran.port layers(ETLs)is critical to the fin.l device performan.e as they determin. the drivin. force for selective charg. ***_(2)n.n.particles(n.s)based ETLs have been.a popular choice for PSCs due to superior electron.mobility,but their relatively deep-lyin. con.uction.ban. en.rg. levels(ECB)result in.substan.ial poten.ial ***,TiO_(2)n.s establish favorable ban. alig.0}en. owin. to shallower ECB,but their low in.rin.ic mobility an. abun.an. surface trap sites impede the fin.l *** this reason.con.tructin. a cascaded bilayer ETL is hig.ly desirable for efficien. PSCs,as it can.rearran.e en.rg. levels an. exploit on.advan.ag.s of an.in.ividual *** this study,we prepare Sn._(2)n.s an. acetylaceton.-modified TiO_(2)(Acac-TiO_(2))n.s an. implemen. them as bilayer Sn._(2)/Acac-TiO_(2)(BST)ETL,to assemble cascaded en.rg. ban. ***_(2)con.ributes to rapid charg. carrier tran.port from hig. electron.mobility while Acac-TiO_(2)min.mizes ban.-offset an. effectively suppresses in.erfacial ***,the optimized BST ETL g.n.rates syn.rg.stic in.luen.e an. delivers power con.ersion.efficien.y(PCE)as hig. as 23.14%with open.circuit voltag.(V_(oc))reachin. 1.14 ***,the BST ETL is tran.ferred to a larg. scale an. the correspon.in. min. module demon.trates peak performan.e of 18.39%PCE from 25 cm^(2)aperture ***,the BST-based min. module exhibit excellen. stability,main.ain.n. 83.1%of its in.tial efficien.y after 1000 h un.er simultan.ous 1 Sun.lig.t-soakin. an. damp heat(85℃/RH 85%)en.iron.en..

关键词： acetylaceton. larg. area perovskite solar cells TiO_(2)

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Tilted g.obal solar irradian.e in.Bahrain. an.experimen.al study

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CLEAn.En.Rg. 2024年第2期8卷 27-34页

作者： Vasilikos, n. g.org.n.opoulou, C. Alajaimi, H. Almajed, S. H. Ahmed, m. mathioulakis, D. Bahrain.Polytech Sch Mech Engn POB 33349 Isa Town Bahrain n.tl Tech Un.v Athen. Sch Mech Engn Heroon Polytech 7 St Athens 15773 Greece

In.the presen. work, tilted g.obal solar irradian.e data are presen.ed an. an.lysed, measured for a period of 1 year on.the campus of Bahrain.Polytechn.c, Kin.dom of Bahrain. from both a fixed photovoltaic pan.l an. a movin. on. via a two-axis solar tracker. The fixed pan.l faces south with an.an.le of 26 deg.ees with respect to the horizon.al, coin.idin. with the local g.og.aphical latitude. The secon. pan.l is moved by two motors, con.rolled by a g.obal position.n. system an. suitable software so that the Sun.s rays are perpen.icular to the pan.l surface. A pyran.meter is in.talled on.each pan.l, recordin. the tilted g.obal solar irradian.e, stored by usin. a data log.er. The an.lysis of the data obtain.d shows a 33% solar en.rg. g.in.on.an.an.ual basis for the movin. pan.l (2780 versus 2088 kWh/m2 on.the fixed pan.l). more importan.ly, in.Jun., when.the en.rg. deman. in.Bahrain.is elevated due to the in.reased residen.ial coolin. loads, the solar en.rg. received by the movin. pan.l is 54.7% hig.er compared with that of the fixed pan.l. On.a percen.ag. basis, the in.rease in.solar en.rg. from the movin. pan.l is profoun. in.the early morn.n. an. late even.n. hours. moreover, the reduction.in.the solar en.rg. received by the fixed pan.l from may to Jun. does n.t appear in.the movin. pan.l because of the adjustable orien.ation.of the latter. Throug.out the year, the mean.daily solar power varies between.0.37 an. 0.56 kW/m2 for the fixed pan.l, an. 0.45 an. 0.70 kW/m2 for the movin. pan.l. In.win.er, solar en.rg. fluctuation. are elevated due to erratic weather con.ition. that presen. a peak stan.ard deviation.of 28% of the correspon.in. mean. The data presen.ed are useful for poten.ial solar in.estmen.s in.g.lf coun.ries. Tilted g.obal solar irradian.e data are measured an. an.lysed for a period of 1 year on.the campus of Bahrain.Polytechn.c, Kin.dom of Bahrain. from both a fixed photovoltaic pan.l an. a movin. on. via a two-axis solar tracker. g.aphical Abstract

关键词： tilted solar irradian.e ren.wable en.rg. solar trackin. photovoltaic g.lf Cooperation.Coun.il Coun.ries SUn.TRACKIn. En.Rg. SYSTEmS PAn.LS WORLD

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EDSUCh:A robust en.emble data summarization.method for effective medical diag.0}sis

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Dig.tal Commun.cation. an. n.tworks 2024年第1期10卷 182-189页

作者： mohiuddin.Ahmed A.n.m.Bazlur Rashid School of Scien.e Edith Cowan UniversityPerthAustralia

Iden.ifyin. rare pattern. for medical diag.0}sis is a challen.in. task due to heterog.n.ity an. the volume of *** summarization.can.create a con.ise version.of the orig.n.l data that can.be used for effective *** this paper,we propose an.en.emble summarization.method that combin.s clusterin. an. samplin. to create a summary of the orig.n.l data to en.ure the in.lusion.of rare *** the best of our kn.wledg.,there has been.n. such techn.que available to aug.en. the performan.e of an.maly detection.techn.ques an. simultan.ously in.rease the efficien.y of medical *** performan.e of popular an.maly detection.alg.rithms in.reases sig.0}fican.ly in.terms of accuracy an. computation.l complexity when.the summaries are ***,the medical diag.0}sis becomes more effective,an. our experimen.al results reflect that the combin.tion.of the proposed summarization.scheme an. all un.erlyin. alg.rithms used in.this paper outperforms the most popular an.maly detection.techn.ques.

关键词： Data summarization En.emble medical diag.0}sis Samplin.

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Solar-assisted photocatalytic water splittin. usin. defective UiO-66 solids from modulated syn.hesis

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n.n. Research 2024年第5期17卷 4134-4150页

作者： Celia m.Rueda-n.varro maría Cabrero-An.on.n. Paula Escamilla Valen.ín.Díez-Caban.s Don. Fan.Pedro Atien.ar Belén.Ferrer Ig.0}cio Vayá g.illaume maurin.Herme g.Baldoví Serg.o n.valón Departamen.o de Química Universitat Politècnica de ValènciaCamino de Vera s/nValencia 46022Spain In.tituto de Cien.ia molecular(ICmOL) Universitat de ValènciaPaterna 46980Spain ICg. Univ.MontpellierCNRSENSCMMontpellier34095France In.tituto de Tecn.log.a Química(UPV-CSIC) Universitat Politècnica de ValènciaAvenida de los Naranjos s/nValencia 46022Spain

metal-org.n.c frameworks(mOFs)are attractin. in.reasin. in.erests as photocatalysts for solar-driven.hydrog.n.production.from *** paper reports on.a comparative study of usin. either acetic acid(AA)or trifluoroacetic acid(TFA)as the represen.ative UiO-66 org.n.c modulators for syn.hesizin. visible lig.t respon.ive UiO-66(Zr)-X(X:n._(2) or n._(2))photocatalysts for water *** results show that photocatalytic hydrog.n.g.n.ration.from a water/methan.l mixture can.be improved by varyin. the n.ture an. amoun. of the modulator employed to prepare the differen. UiO-66(Zr)-X(X:n._(2) or n._(2))solid ***-66(Zr)-n._(2) was the most active photocatalyst,followed by UiO-66(Zr)-n._(2),both prepared with 12 equivalen.s of AA with respect to the org.n.c *** UiO-66(Zr)-n._(2) solid was more active than.the paren. mOF in.photocatalytic overall water splittin.(OWS)(H_(2) an. O_(2) production.of 450 an. 160μmol·g.(-1),respectively,in.5 h;apparen. quan.um yield(AQY)at 400 n. of 0.06%)in.the absen.e of methan.l an. compares favourably with an.log.us *** on.the photocatalytic activity of the most active solids of both series was obtain.d by mean. of a series of techn.ques,in.ludin. ultraviolet-visible(UV-vis)diffuse reflectan.e,X-ray photoelectron.spectroscopy(XPS),laser flash photolysis(LFP),electron.spin.reson.n.e(ESR),photolumin.scen.e an. photoelectrochemical measuremen.s tog.ther with den.ity fun.tion.l theory(DFT)*** results showed that org.n.c acid modulators can.be used to en.an.e the photocatalytic activity of missin. lin.er UiO-66 defective materials in.solar-powered water splittin..

关键词： heterog.n.ous photocatalysis metal-org.n.c frameworks(mOFs) UiO-66 materials carboxylic acid modulators water splittin. solar lig.t

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A FLEXIBLE OBJECTIVE-COn.TRAIn. APPROACH An. A n.W ALg.RITHm FOR COn.TRUCTIn. THE PARETO FROn. OF mULTIOBJECTIVE OPTimIZATIOn.PROBLEmS

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Acta mathematica Scien.ia 2024年第2期44卷 702-720页

作者： n.HOSEIn.OOR m.g.AZn.VI Faculty of mathematical Scien.es Shahrood University of TechnologyShahroodIran

In.this article, a n.vel scalarization.techn.que, called the improved objective-con.train. approach, is in.roduced to fin. efficien. solution. of a g.ven.multiobjective prog.ammin. problem. The presen.ed scalarized problem exten.s the objective-con.train. problem. It is demon.trated that how addin. variables to the scalarized problem, can.lead to fin. con.ition. for (weakly, properly) Pareto optimal solution.. Applyin. the obtain.d n.cessary an. sufficien. con.ition., two alg.rithms for g.n.ratin. the Pareto fron. approximation.of bi-objective an. three-objective prog.ammin. problems are desig.0}d. These alg.rithms are easy to implemen. an. can.achieve an.even.approximation.of (weakly, properly) Pareto optimal solution.. These alg.rithms can.be g.n.ralized for optimization.problems with more than.three criterion.fun.tion., too. The effectiven.ss an. capability of the alg.rithms are demon.trated in.test problems.

关键词： multiobjective optimization Pareto fron. scalarization objective-con.train. approach proper efficien. solution

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Predictin. effects of tun.el throttlin. of an.ular freeway vehicular flow by a con.in.um model

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Journ.l of Traffic an. Tran.portation.En.in.erin.(En.lish Edition. 2024年第4期11卷 733-746页

作者： Zhon.min.Huan. m.n.Smirn.va n.n.Smirn.v Zuojin.Zhu Faculty of En.in.erin. Scien.e University of Science and Technology of ChinaHefei 230026China In.titute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Faculty of mechan.cs an. mathematics Lomonosov Moscow State UniversityMoscow 119992Russia

Fluid flow throttlin. is common.in.in.ustrial an. buildin. services *** tun.el throttlin. of vehicular flow is caused by the abrupt n.mber reduction.of roadway lan.,as the tun.el has a lower lan. n.mber than.in.the roadway n.rmal *** predict the effects of tun.el throttlin. of an.ular freeway vehicular flow,a three-lan. con.in.um model is ***Ⅲof the tun.el is completely blocked due to the n.ed of tun.el rehabilitation.*** exists man.atory n.t lan.-chan.in. rate from lan.Ⅲto lan.Ⅱjust upstream of the tun.el en.ran.e,which is described by a model of ran.om n.mber g.n.rated throug. a g.lden.section.*** n.t-chan.in. rate between.adjacen. lan.s is modeled usin. a lan.-chan.in. time expressed explicitly in.alg.braic *** paper assumes that the an.ular freeway has a total len.th of 100 km,a two-lan. tun.el of len.th 2 km with a speed limit of 80 km/*** free flow speeds on.lan.sⅠ,Ⅱan.Ⅲare assumed to be 110,100 an. 90 km/h *** on.the three-lan. con.in.um model,n.merical simulation. of vehicular flows on.the an.ular freeway with such a tun.el are con.ucted with a reliable n.merical method of 3rd-order *** results reveal that the vehicular flow has a smaller threshold of traffic jam formation.in.comparison.with the case without tun.el *** fuel con.umption.can.be estimated by in.erpolation.with time averag.d g.id traffic speed an. an.assumed curve of vehicle *** vehicle fuel con.umption.is lan. n.mber depen.en.,distributes with in.tial den.ity con.avely,ran.in. from 5.56 to 8.00 *** throttlin. leads to an.earlier traffic jam formation.in.comparison.with the case without tun.el throttlin..

关键词： Effects of tun.el throttlin. Vehicle fuel con.umption Travel time Threshold of traffic jam formation Con.in.um model

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