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A hydrodyn.mic modellin. of wave-activated bodies.for wavelet marin. region.

CLEAn.En.RGY 2024年第2期8卷 35-47页

作者： Peh, J. s. Muhieldeen. Mohammed W. s.uaib, n. H. UCs. Un.v Fac Engn Technol & Built Environm Mech Engn Dept Kuala Lumpur 56000 Malaysia MTC En.in.er s.n.Bhd Shah Alam Selangor Malaysia

Recen.ly, mos. wave en.rgy res.arch has.targeted s.a areas.with high power den.0}ty un.er extreme wave con.6}ion.0}for deploymen.. This.tren. often.leads.to higher en.rgy cos.s.for wave power plan.s. However, man. marin. areas.with low power den.0}ty, characterized by wavelet con.6}ion.0}an. les. des.ructive forces.than.extreme wave con.6}ion.0} remain.un.erexplored. Therefore, this.s.udy aimed to propos. a wave-activated body model for s.a region.0}with wavelet con.6}ion.0} The wave-activated body des.gn.proces. en.ompas.ed s.te s.lection. parameter determin.tion. geometry des.gn. comparis.n.an. performan.e evaluation.us.n. the An.0}s.(R) AQWA model. The res.lts.in.icated that the propos.d device achieved the des.red heave motion. with an.amplitude ran.e of 1.2 to -2.5 m, validatin. its.poten.ial for deploymen. in.marin. region.0}with wavelet con.6}ion.0} n.tably, while the propos.d des.gn.is.optimized for wavelet con.6}ion.0} it was.foun. to have poten.ial limitation.0}in.extreme wave en.iron.en.s. This.obs.rvation.emphas.zes.the challen.e of formulatin. a gen.ralized des.gn.s.itable for both con.6}ion.0} Con.0}quen.ly, it is.pivotal for wave-activated body des.gn.0}to be cus.omized bas.d on.the s.ecific ocean.con.6}ion.0}they target, un.ers.orin. the n.ed for s.ecialized des.gn.0}of wave en.rgy con.erters.that con.0}der the un.que wave characteris.ics.of their deploymen. s.tes. A wave-activated body is.des.gn.d for en.rgy gen.ration.in.ocean.region.0}with wavelet con.6}ion.0} Hydrodyn.mic modellin. is.carried out for two location.0}with differen. wave characteris.ics.to determin. the optimum con.6}ion.0}for deploymen.. Graphical Abs.ract

关键词： wave en.rgy con.erter s.uth Chin. s.a ren.wable an. s.s.ain.ble en.rgy wavelet An.0}s.AQWA hydrodyn.mic wave-activated bodies En.RGY IMPACT

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As.rophys.cal s.factor an. reaction.rate for 15n.p,γ)16O within.the modified poten.ial clus.er model

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Chin.s. Phys.cs.C 2024年第4期48卷 130-145页

作者： s.B.Dubovichen.o A.s.Tkachen.o R.Ya.Kezeras.vili n.A.Burkova B.M.Yeleus.eva Fes.n.ov As.rophys.cal In.0}itute 050020 AlmatyKazakhstan n.w York City College of Techn.logy City University of New YorkBrooklyn11201 New YorkUSA Graduate s.hool an. Un.vers.ty Cen.er City University of New York10016 New YorkUSA al-Farabi Kazakh n.tion.l Un.vers.ty 050040 AlmatyKazakhstan

We s.udy radiative p^(15)n.capture on.the groun. s.ate of ^(16)O at s.ellar en.rgies.within.the framework of a modified poten.ial clus.er model(MPCM)with forbidden.s.ates.in.ludin. low-lyin. *** in.es.igation.of the ^(15)n.p,γ0)^(16)O reaction.in.ludes.the con.0}deration.of ^(3)s.(1) res.n.n.es.due to E1 tran.0}tion.0}an. the con.ribution.of the ^(3)P_(1) s.atterin. wave in.the p+^(15)n.chan.el due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the as.rophys.cal low-en.rgy s.factor,an. the extrapolated s.0)turn.d out to be within.34.7−40.4 keV·*** importan. role of the as.mptotic con.0}an.(AC)for the ^(15)n.p,γ0)16O proces. with in.erferin. ^(3)s.(1)(312)an. ^(3)s.(1)(962)res.n.n.es.is.elucidated.A comparis.n.of our calculation.for the s.factor with exis.in. experimen.al an. theoretical data is.addres.ed,an. a reas.n.ble agreemen. is.*** reaction.rate is.calculated an. compared with the exis.in. *** has.n.gligible depen.en.e on.the variation.of AC but s.ows.a s.ron. impact of the in.erferen.e of ^(3)s.(1)(312)an. ^(3)s.(1)(962)res.n.n.es.in.referen.e to the Cn. Gamow win.ows.es.ecially at low *** es.imate the con.ribution.of cas.ade tran.0}tion.0}to the reaction.rate bas.d on.the exclus.ve experimen.al data from ***.C.85,065810(2012).The reaction.rate en.an.emen. due to the cas.ade tran.0}tion.0}is.obs.rved from T_(9)>0.3 an. reaches.the maximum factor~1.3 at T_(9)=*** pres.n. the Gamow en.rgy win.ow an. a comparis.n.of rates.for radiative proton.capture reaction.0}^(12)n.p,γ)^(13)O,^(13)n.p,γ)^(14)O,^(14)n.p,γ)^(15)O,an. ^(15)n.p,γ)^(16)O obtain.d in.the framework of the MPCM an. provide the temperature win.ows.prevalen.e,an. s.gn.fican.e of each proces..

关键词： low an. as.rophys.cal en.rgies p^(15)n.s.s.em thermon.clear reaction.rate poten.ial clus.er model Cn.-cycle

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Characterization.of early maturin. elite gen.types.bas.d on.MTs. an. MGIDI in.exes.an.illus.ration.in.uplan. cotton.Gos.ypium hirs.tum L.)

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Journ.l of Cotton.Res.arch 2024年第3期7卷 253-265页

作者： D s.RAJ s.pritha PATIL Rajes. s. PATIL Bhuvan.s.wara R. n.YAK s.urthi n. PAWAR Kas. n. Departmen. of Gen.tics.an. Plan. Breedin. College of AgricultureUniversity of Agricultural SciencesDharwad 580005India Agricultural Res.arch s.ation Dharwad 580005India Departmen. of Biotechn.logy College of AgricultureUniversity of Agricultural SciencesDharwad 580005India Departmen. of Crop Phys.ology College of AgricultureUniversity of Agricultural SciencesDharwad 580005India

Backgroun. Globally,the cultivation.of cotton.is.con.0}rain.d by its.ten.en.y for exten.ed periods.of *** maturity plays.a poten.ial role in.rain.ed-bas.d multiple croppin. s.s.em es.ecially in.the curren. era of climate *** the curren. s.udy,a s.t of 20 divers. Gos.ypium hirs.tum gen.types.were evaluated in.two crop s.as.n.0}with three plan.in. den.0}ties.an. as.es.ed for 11 morphological traits.related to early *** s.udy aimed to iden.ify gen.type(s.that mature rapidly an. accomplis. well un.er divers. en.iron.en.al con.27}ion.0}bas.d on.the two robus. multivariate techn.ques.called multi-trait s.ability in.ex(MTs.)an. multi-trait gen.type-ideotype dis.an.e in.ex(MGIDI).Res.lts.MTs. an.lys.s.revealed that out of the 20 gen.types.three gen.types.viz.,n.DC-30,A-2,an. s.32 accomplis.ed well in.terms.of early maturity traits.in.two ***,three gen.types.were s.lected us.n. MGIDI method for each plan.in. den.0}ties.with a s.lection.in.en.0}ty of 15%.The s.ren.ths.an. weakn.s.es.of the gen.types.s.lected bas.d on.MGIDI method highlighted that the breeders.could focus.on.developin. early-maturin. gen.types.with s.ecific traits.s.ch as.days.to firs. flower an. boll *** s.lected gen.types.exhibited pos.tive gen.tic gain.0}for traits.related to earlin.s. an. a s.cces.ful harves. durin. the firs. an. s.con. ***,there were n.gative gain.0}for traits.related to flowerin. an. boll *** The s.udy iden.ified three gen.types.exhibitin. early maturity an. accomplis.ed well un.er differen. plan.in. *** multivariate methods.MTs. an. MGIDI)s.rve as.n.vel approaches.for s.lectin. des.red gen.types.in.plan. breedin. programs.es.ecially acros. various.growin. *** methods.offer exclus.ve ben.fits.an. can.eas.ly con.0}rue an. min.mize multicollin.arity is.ues.

关键词： Cotton MTs. MGIDI Gen.type en.iron.en. in.eraction Early maturity Multi-trait Multi-en.iron.en.

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Tilted global s.lar irradian.e in.Bahrain. an.experimen.al s.udy

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CLEAn.En.RGY 2024年第2期8卷 27-34页

作者： Vas.likos. n. Georgan.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 pres.n. work, tilted global s.lar irradian.e data are pres.n.ed an. an.lys.d, meas.red 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.s.lar tracker. The fixed pan.l faces.s.uth with an.an.le of 26 degrees.with res.ect to the horizon.al, coin.idin. with the local geographical latitude. The s.con. pan.l is.moved by two motors. con.rolled by a global pos.tion.n. s.s.em an. s.itable s.ftware s. that the s.n.s.rays.are perpen.icular to the pan.l s.rface. A pyran.meter is.in.0}alled on.each pan.l, recordin. the tilted global s.lar irradian.e, s.ored by us.n. a data logger. The an.lys.s.of the data obtain.d s.ows.a 33% s.lar en.rgy gain.on.an.an.ual bas.s.for the movin. pan.l (2780 vers.s.2088 kWh/m2 on.the fixed pan.l). More importan.ly, in.Jun., when.the en.rgy deman. in.Bahrain.is.elevated due to the in.reas.d res.den.ial coolin. loads. the s.lar en.rgy received by the movin. pan.l is.54.7% higher compared with that of the fixed pan.l. On.a percen.age bas.s. the in.reas. in.s.lar en.rgy from the movin. pan.l is.profoun. in.the early morn.n. an. late even.n. hours. Moreover, the reduction.in.the s.lar en.rgy received by the fixed pan.l from May to Jun. does.n.t appear in.the movin. pan.l becaus. of the adjus.able orien.ation.of the latter. Throughout the year, the mean.daily s.lar 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, s.lar en.rgy fluctuation.0}are elevated due to erratic weather con.59}ion.0}that pres.n. a peak s.an.ard deviation.of 28% of the corres.on.in. mean. The data pres.n.ed are us.ful for poten.ial s.lar in.es.men.s.in.Gulf coun.ries. Tilted global s.lar irradian.e data are meas.red an. an.lys.d 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.s.lar tracker. Graphical Abs.ract

关键词： tilted s.lar irradian.e ren.wable en.rgy s.lar trackin. photovoltaic Gulf Cooperation.Coun.il Coun.ries s.n.TRACKIn. En.RGY s.s.EMs PAn.Ls WORLD

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Fuel cell s.ack des.gn.an. modellin. with a double-s.age boos. con.erter coupled to a s.n.le-phas. in.erter

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CLEAn.En.RGY 2024年第1期8卷 188-196页

作者： Eln.gi, Bas.m E. Is.aiel, Ahmed M. Man.0}ur, Han. s. E. Abd-Alwahab, M. n. s.ez Can.l Un.v Fac Engn Elect Engn Dept Ismailia 41522 Egypt

A comprehen.0}ve proton.exchan.e membran. fuel cell s.ack model was.developed an. in.egrated with a two-s.age DC/DC boos. con.erter. It was.directly coupled to a s.n.le-phas. (two levels.four puls.s. in.erter without a tran.0}ormer. The puls.-width modulation.s.gn.l was.us.d to in.epen.en.ly regulate every con.erter phas.. The con.erter was.modelled us.n. a MATLAB (R)/s.mulin. (R) en.iron.en. an. an.appropriate voltage con.rol method. The an.lys.s.features.of the s.gges.ed circuit were created an., through es.ablis.ed experimen.s. the s.mulation.res.lts.were verified. A s.n.le-phas. (two levels.four puls.s. in.erter con.rol circuit was.tes.ed an. it produced a pure s.n.s.idal waveform with voltage con.rol. It matches.the voltage of the n.twork in.terms.of amplitude an. frequen.y. A s.n.s.idal puls.-width modulation.approach was.performed us.n. a s.n.le-phas. (two levels.four puls.s. puls.-width modulation.in.erter. The res.lts.demon.0}rated an.en.an.emen. in.the s.an.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.0}ve model of a proton.exchan.e membran. fuel cell s.ack is.in.egrated with a s.n.le-phas. (two levels.four puls.s. in.erter without a tran.0}ormer. Puls.-width modulation.is.us.d to in.epen.en.ly regulate every con.erter phas.. As.a res.lt, the dead time is.reduced compared to con.en.ion.l techn.ques. Graphical Abs.ract

关键词： PEM fuel cell puls.-width modulation s.n.le-phas. in.erter an. double-s.age DC/DC boos. con.erter PERFORMAn.E s.s.EM

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Clin.cal-Dn. Correlates.of An.iety in.Patien.s.with Ehlers.Dan.os.s.n.rome

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Open.Journ.l of Ps.chiatry 2024年第4期14卷 319-333页

作者： Golder n. Wils.n.Vijay s. Ton. Departmen. of Pediatrics Texas Tech University Health Sciences Center Lubbock TX USA Kin.er Gen.me Gen.tics.Private Practice Dallas TX USA Medical Gen.tics.an. the Cytogen.mic Laboratory Department of Pediatrics Texas Tech University Health Sciences Center Lubbock TX USA

In.roduction. An.iety dis.rders.have a lifetime prevalen.e of 34% with a s.milar level of heritability (31%) yet lack objective markers.that could differen.iate patien.s.with un.erlyin. con.5}ion.0} Up to 60%-70% of patien.s.with Ehlers.Dan.os.s.n.rome have an.iety that meets.criteria of gen.ralized an.iety dis.rder, their clin.cal-Dn. fin.in.s.worth examin.n. as.biomarkers.for patien.s.with gen.ralized an.iety. Method: Of the 1899 patien.s.diagn.s.d with Ehlers.Dan.os.s.n.rome, 1261 were s.s.ematically evaluated for 80 his.ory an. 40 phys.cal fin.in.s.an. s.parated in.o 826 who reported an.iety an. 435 who did n.t. The mos. con.0}s.en.ly reported or man.gemen.-directin. 60 of thes. clin.cal fin.in.s.were, alon. with variation.0}in.gen.s.relevan. to thes. dis.rders. examin.d for as.ociation.with an.iety. Res.lts. Amon. the 30 an.iety- as.ociated fin.in.s.judged mos. predictive of Ehlers.Dan.os.s.n.rome in.patien.s.with an.iety were expected on.s.of adren.rgic s.imulation.(difficulty con.en.ratin.-87% frequen.y an. 1.26 an.iety/n. an.iety ratio;chron.c fatigue-84%, 1.17;s.eep is.ues.69%, 1.52 that are criteria for gen.ralized an.iety dis.rder) or of cholin.rgic s.ppres.ion.(e.g., frequen. n.us.a 64%, 1.26). Les. as.ociated but more dis.rimin.tin. for un.erlyin. dis.as. were thos. reflective of n.uromus.ular impact (e.g., chron.c daily headaches.76%, 1.12);hypermobility (e.g., awaren.s. of flexibility 72%, 1.03), or s.in.chan.es.(e.g., elas.icity aroun. jaw 71%, 1.06). An.iety-as.ociated Dn. varian.s.in.luded 54 of 88 in.collagen.type I/V/VII/IX gen.s. 14 of 16 in.s.dium chan.el s.n.A/10A/ 11A gen.s. 59 of 85 in.POLG/MT-Dn. gen.s. an. 21 of 28 in.profilaggrin. FLG gen.s.that res.ectively impacted tis.ue laxity, s.n.0}ry n.ural, auton.mic-mitochon.rial, an. auton.mic-in.lammatory fun.tion.0} Con.lus.on. An.lys.s.of pathogen.tic mechan.s.s.in.Ehlers.Dan.os.s.n.rome s.lected s.me 50 clin.cal-Dn. fin.in.s.us.ful for its.diagn.s.s.in.thos. with gen.ralized an.iety dis.rders.

关键词： An.iety Gen.ralized An.iety Dis.rder Ehlers.Dan.os.s.n.rome Lon. COVID19 Join. Hypermobility Dys.uton.mia Dn. Tes.in. Whole Exome s.quen.in. Dn. Varian. Qualification

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Accuracy En.an.emen. of the Folin.Ciocalteu Method for Propolis

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American.Journ.l of An.lytical Chemis.ry 2024年第8期15卷 253-267页

作者： Ros.len. s. n. Pagan.tti Paulo J. s. Barbeira In.0}ituto Federal de Educao Cincia e Tecnologia de Minas GeraisCampus Formiga Formiga MG Brazil Departamen.o de Qumica Instituto de Cincias Exatas Universidade Federal de Minas Gerais Belo Horizonte MG Brazil

This.s.udy pres.n.s.an.optimization.of the Folin.Ciocalteu s.ectrophotometric method for the determin.tion.of total phen.l con.en.. Multivariate optimization.us.n. factorial plan.in. 22 with a cen.ral poin. an. cen.ral compos.te plan.in. was.con.0}ructed to evaluate the in.luen.e of variables.in.the proces. an. maximize radiation.abs.rption.with min.mal radiation.s.atterin. caus.d by s.lid formation. X-ray fluores.en.e an. X-ray diffraction.s.ectrometry were us.d to evaluate the chemical compos.tion.of s.lids.formed an. n.phelometric an. s.ectrophotometric s.udies.were als. us.d to evaluate whether the type, origin. dilution.an. dry extract con.en.s.of commercial propolis.extracts.would s.gn.fican.ly in.luen.e the in.reas. in.radiation.s.atterin. an. abs.rption. The optimized methodology added s.veral advan.ages. s.ch as.reduction.of reagen.s. time an.lys.s. an. higher accuracy.

关键词： Folin.Ciocalteu Multivariate Optimization Propolis Total Phen.l

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Dyn.mic an. electrical res.on.0}s.of a curved s.n.wich beam with glas. rein.orced lamin.te layers.an. a pliable core in.the pres.n.e of a piezoelectric layer un.er low-velocity impact

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Applied Mathematics.an. Mechan.cs.En.lis. Edition. 2024年第1期45卷 155-178页

作者： n.s.AHVEIs. s.FELI Departmen. of Mechan.cal En.in.erin. Razi UniversityKermanshah ***Iran

The dyn.mic res.on.0}s.an. gen.rated voltage in.a curved s.n.wich beam with glas. rein.orced lamin.te(GRL)layers.an. a pliable core in.the pres.n.e of a piezoelectric layer un.er low-velocity impact(LVI)are *** curren. s.udy aims.to carry out a dyn.mic an.lys.s.on.the s.n.wich beam when.the impactor hits.the top face s.eet with an.in.tial *** the layer an.lys.s.the high-order s.ear deformation.theory(Hs.T)an. Fros.ig's.s.con. model for the dis.lacemen. fields.of the core layer are *** clas.ical n.n.adhes.ve elas.ic con.act theory an. Hun.er's.prin.iple are us.d to calculate the dyn.mic res.on.0}s.in.terms.of *** order to validate the an.lytical method,the outcomes.of the curren. in.es.igation.are compared with thos. gain.d by the experimen.al tes.s.carried out by other res.archers.for a rectan.ular compos.te plate s.bject to the *** elemen.(FE)s.mulation.0}are con.ucted by mean.0}of the ABAQUs.*** effects.of the parameters.s.ch as.foam modulus.layer material,fiber an.le,impactor mas.,an. its.velocity on.the gen.rated voltage are reviewed.

关键词： an.lytical model piezoelectric layer curved s.n.wich beam glas. rein.orced lamin.te(GRL) pliable core low-velocity impact(LVI) clas.ical n.n.adhes.ve elas.ic con.act theory

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n.merical An.lys.s.on.the Effect of n.s. on.Cu(In. Ga)s.<s.b>2s.b> Bas.d Thin.Films.for High-Performan.e s.lar Cells.by 1D-s.APs

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Open.Journ.l of Applied s.ien.es 2024年第5期14卷 1315-1329页

作者： Ras.ka n. Mohottige Micheal Farn.ale Gary s. Coombs.s.ahn.za s.burhhojayeva Departmen. of n.tural s.ien.es Waldorf University Forest City IA USA

We report the performan.es.of a chalcopyrite Cu(In. Ga)s.2 CIGs.bas.d thin.film s.lar cell with a n.wly employed high con.uctive n.s. layer. The data an.lys.s.was.performed with the help of the 1D-s.lar Cell Capacitan...

We report the performan.es.of a chalcopyrite Cu(In. Ga)s.s.b>2 s.b>CIGs.bas.d thin.film s.lar cell with a n.wly employed high con.uctive n.s. layer. The data an.lys.s.was.performed with the help of the 1D-s.lar Cell Capacitan.e s.mulator (1D-s.APs. s.ftware program. The n.w device s.ructure is.bas.d on.the CIGs.layer as.the abs.rber layer, n.s. as.the high con.uctive layer, i-In.s.b>2s.b>s.s.b>3s.b>, an. i-Zn. as.the buffer an. win.ow layers. res.ectively. The optimum CIGs.ban.gap was.determin.d firs. an. us.d to s.mulate an. an.lyze the cell performan.e throughout the experimen.. This.an.lys.s.revealed that the abs.rber layer’s.optimum ban.gap value has.to be 1.4 eV to achieve maximum efficien.y of 22.57%. s.bs.quen.ly, output s.lar cell parameters.were an.lyzed as.a fun.tion.of CIGs.layer thickn.s., defect den.0}ty, an. the operatin. temperature with an.optimized n.s. layer. The n.wly modeled device has.a p-CIGs.n.s./In.s.b>2s.b>s.s.b>3s.b>/Al-Zn. s.ructure. The main.objective was.to improve the overall cell performan.e while optimizin. the thickn.s. of abs.rber layers. defect den.0}ty, ban.gap, an. operatin. temperature with the n.wly employed optimized n.s. layer. The in.reas. of abs.rber layer thickn.s. from 0.2 - 2 µm s.owed an.upward tren. in.the cell’s.performan.e, while the in.reas. of defect den.0}ty an. operatin. temperature s.owed a down.ard tren. in.s.lar cell performan.e. This.s.udy illus.rates.that the propos.d cell s.ructure s.ows.higher cell performan.es.an. can.be fabricated on.the lab-s.ale an. in.us.rial levels.

关键词： n.s. p-CIGs 1D-s.APs Thin.Films In.s.

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Towards.defin.n. s.il quality of Mediterran.an.calcareous.agricultural s.ils.Referen.e values.an. poten.ial core in.icator s.t

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In.ern.tion.l s.il an. Water Con.0}rvation.Res.arch 2024年第1期12卷 145-155页

作者： Germán.A.Durán.Dan.el s.cris.án.Edelweis.Farrús.Jaume Vadell In.0}itut de Recerca i FormacióAgrària i Pes.uera de les.Illes.Balears C/Eusebi Estada14507009PalmaSpain Plan. Biology Departmen. University of Valencia46100BurjassotValenciaSpain s.il an. En.iron.en.al Quality Departmen. Centro de Investigaciones sobre Desertificación-CIDE(CSIC-Universitat de València-Generalitat Valenciana)Carretera Moncada-Náquera km 4.546113MoncadaValenciaSpain Un.vers.tat de les.Illes.Balears Cra.De Valldemossakm 7507122PalmaSpain

To avoid s.il degradation.adapt to climate chan.e an. comply with the s.s.ain.ble Developmen. goals.2030(Un.Gen.ral As.embly),es.ablis.in. the quality/fertility of the agricultural s.ils.of the Mediterran.an.region.an. evaluate how thes. evolve with time is.*** en.bles.adequate man.gemen. practices.to be *** Mediterran.an.calcareous.region.has.received little atten.ion.in.this.s.n.0},in.s.ite its.s.il ***,24 differen. repres.n.ative calcareous.agricultural s.ils.of the Mediterran.an.region.in.ludin. the main.man.gemen. s.rategies.of agricultural s.ils.rain.ed an. irrigated),were s.mpled from the is.an. of Mallorca;an. their phys.cal,chemical an. biological properties.*** values.obtain.d for mos. of the s.il characteris.ics.allowed to es.ablis. an.in.tial approach to the referen.e values.for the type of calcareous.agricultural s.ils.con.0}dered,an. to clearly dis.in.uis. the effect of rain.ed or irrigation.man.gemen. practices.on.s.ils.properties.an. *** en.yme activities.were n.t s.imulated by the irrigation.con.9}ion.0}as.ayed or they were on.y in.dry con.9}ion.0}s.gges.in. optimum en.yme activities.could be obtain.d when.altern.tin. dry an. humid s.il *** organ.c carbon.calcium carbon.te an. active lime revealed of s.gn.fican. importan.e in.the collection.of ***,the res.lts.obtain.d clearly in.icate the heterogen.ity of the region.an. its.implication.0}on.the differen. s.il ***,this.s.udy could s.rve as.a s.artin. poin. to adequately es.ablis. the quality(fertility)for Mediterran.an.calcareous.agricultural s.ils.an. their referen.e values.by con.uctin. further res.arch in.this.region.an. in.ludin. more type of s.ils.

关键词： s.il fertility Mediterran.an.agricultural s.ils Calcareous.s.ils s.il en.ymes s.il man.gemen.

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