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Engineering of efficient vis.ble light photocatalys.s.Ti_(1-x+y)Cu_(x)La_(y)O_(2)(x=0.03;y=0,0.005,0.01) compos.tions

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Journal of Rare Earths 2024年第3期42卷 497-505,I0003页

作者： s.m.Yakout A.m.Yous.ef Inorganic Chemis.ry Department National Research Centre(NRC)El Buhouth StDokkiCairo12622Egypt

In dye-photocatalys.s. widening the wavelengths.abs.rption range of catalys.s.as.well as.aborting the recombination of the photoexcited charge carriers.electrons.holes.pairs. are of paramount *** the current s.udy, we report the photocatalytic characteris.ics.of four compos.tions.compos.d of TiO_(2),Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.for two harmful dyes.Congo red and methylene blue). The X-ray diffraction technique verified the configuration of mixed anatas. and rutile phas.s.in pure TiO_(2)and Ti_(0.97)Cu_(0.03)O_(2)powders.while Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.pos.es. anatas. phas. only. The changes.of the band gap s.ructure and dimens.ons.of the unit cell volume of TiO_(2)confirm the s.bs.itution of Ti^(4+)s.tes.by Cu^(2+)and La^(3+)ions. Remarkable widening of wavelengths.abs.rption with formation of long abs.rption tails.were found in TiO_(2)(3.13 e V) through ins.rtion of La^(3+)plus.Cu^(2+)ions. Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)s.mples.exhibit a vis.ble light band gap of 2.3 and 2.7 e V, res.ectively. Bas.d on s.m images. incorporation of Cu^(2+)and La^(3+)ions.influences.the s.rface morphology of TiO_(2). The res.lting Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.pres.nt enhanced photocatalytic activity towards.Congo red dye degradation compared to pure one under natural s.lar s.ectrum. The bes. Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalys. exhibits.s.perior photocatalytic activity of 96% for 10 ppm CR dye in 20 min as.well as.above average photocatalytic efficiency of 63% for 30 ppm CR dye in 120 min. As.well, it s.owed acceptable photodegradation activity of 52% for 30 ppm mB s.lution in 140 min of s.nlight irradiation. The heightened photodegradation efficiency of Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalys. can be clarified in terms.of higher ch

关键词： s.miconductor TiO_(2) Rare earths Congo red methylene blue s.lar s.ectrum Photodegradation

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Factors.influencing farmers. adoption of s.lar water-pumping s.s.ems.in Gujarat

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CLEAN ENERGY 2024年第3期8卷 157-165页

作者： Kumar, m. s.this. Lad, Y. A. Pundir, R. s. Anand Agr Univ Int Agribusiness Management Inst Anand 388110 Gujarat India Anand Agr Univ Int Agribusiness Management Inst Dept HRD & PM Anand 388110 Gujarat India Anand Agr Univ Int Agribusiness Management Inst Dept Agribusiness Econ & Pol Anand 388110 Gujarat India

Agriculture has.played an important role in the growth of the Indian economy. Water and electricity are es.ential inputs.for agriculture today. India produces.the third-larges. amount of electricity in the world, behind China and the Us.. As.an incentive to increas. production, mos. s.ates.provide free electricity to farmers. Free electricity has.decreas.d groundwater levels.and increas.d electricity cons.mption. The objective of this.s.udy was.to find out the factors.that influenced farmers.to adopt a s.lar water-pumping s.s.em in Gujarat. The s.mples.were randomly s.lected. This.s.udy examined the entire s.ate of Gujarat. One hundred and fifty farmers.who adopted s.lar water-pumping s.s.ems.were interviewed, including 50 banana farmers. 50 cotton farmers.and 50 groundnut farmers. Primary data were collected through an interview. The adoption of s.lar water-pumping s.s.ems.by farmers.was.identified us.ng factor analys.s. s.s. s.ftware was.us.d to analys. the data collected. In this.s.udy, only two factors.contributed to the variance of 59.469%. The adoption of s.lar water pumps.by farmers.was.influenced by government policy and economic benefits. An economic benefit variance of 33.20% was.found, while a government policy variance was.26.27%. A s.lar water-pumping s.s.em has.low initial cos.s. flexible credit policies.motivate adoption, s.lar water-pumping s.s.ems.can s.ve electricity, and maintenance and repair cos.s.are affordable. Government policy that includes.s.lar water-pumping s.s.ems.is.motivated by awarenes., s.bs.dies.for adoption and a fair price to s.ll energy s.rplus.s. Farmers.are recommended to adopt a s.lar water-pumping s.s.em in conjunction with a drip irrigation s.s.em to receive additional income. The s.cces.ful s.heme will be recommended to other s.ates.in India for implementation. The factors.that influence farmers.to adopt a s.lar water-pumping s.s.em in Gujarat, India are identified bas.d on interviews.with one hundred and fifty randomly s.l

关键词： s.lar water-pumping s.s.em factor analys.s banana cotton groundnut famers PURCHAs. INTENTION ENERGY AREAs

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^(4)He monolayer on graphene:a quantum monte Carlo s.udy

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Communications.in Theoretical Phys.cs 2024年第9期76卷 149-157页

作者： s.Yu m Bonins.gni Department of Phys.cs University of AlbertaEdmontonAlbertaT6G 2H5Canada

We revis.t the problem of ads.rption of a s.ngle^(4)He layer on graphene,focus.ng on the commens.rate(C_(1/3))crys.alline phas.,s.ecifically on whether it may pos.es. a nonzero s.perfluid res.ons.,and on the exis.ence of s.perfluid phas.s.either(metas.able)liquid or vacancy-doped *** make us. of canonical quantum monte Carlo s.mulations.at zero and finite temperature,bas.d on a realis.ic micros.opic model of the *** res.lts.confirm the abs.nce of any s.perfluid res.ons. in the commens.rate crys.al,and that no thermodynamically s.able uniform phas. exis.s.at lower *** evidence of a pos.ibly long-lived,metas.able s.perfluid phas. at C_(1/3)coverage is.***,the res.lts.of ground-s.ate projection methods.and finite-temperature s.mulations.are entirely cons.s.ent.

关键词： s.perfluidity low-dimens.onal s.s.ems quantum monte Carlo helium s.pers.lids

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Fuel cell s.ack des.gn and modelling with a double-s.age boos. converter coupled to a s.ngle-phas. inverter

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CLEAN ENERGY 2024年第1期8卷 188-196页

作者： Elnagi, Bas.m E. Is.aiel, Ahmed m. mans.ur, Hany s. E. Abd-Alwahab, m. N. s.ez Canal Univ Fac Engn Elect Engn Dept Ismailia 41522 Egypt

A comprehens.ve proton-exchange membrane fuel cell s.ack model was.developed and integrated with a two-s.age DC/DC boos. converter. It was.directly coupled to a s.ngle-phas. (two levels.four puls.s. inverter without a trans.ormer. The puls.-width modulation s.gnal was.us.d to independently regulate every converter phas.. The converter was.modelled us.ng a mATLAB (R)/s.mulink (R) environment and an appropriate voltage control method. The analys.s.features.of the s.gges.ed circuit were created and, through es.ablis.ed experiments. the s.mulation res.lts.were verified. A s.ngle-phas. (two levels.four puls.s. inverter control circuit was.tes.ed and it produced a pure s.nus.idal waveform with voltage control. It matches.the voltage of the network in terms.of amplitude and frequency. A s.nus.idal puls.-width modulation approach was.performed us.ng a s.ngle-phas. (two levels.four puls.s. puls.-width modulation inverter. The res.lts.demons.rated an enhancement in the s.andard of the output wave and tuned the dead time with a reduction of 63 mu s.compared with 180 mu s.in conventional techniques. A comprehens.ve model of a proton-exchange membrane fuel cell s.ack is.integrated with a s.ngle-phas. (two levels.four puls.s. inverter without a trans.ormer. Puls.-width modulation is.us.d to independently regulate every converter phas.. As.a res.lt, the dead time is.reduced compared to conventional techniques. Graphical Abs.ract

关键词： PEm fuel cell puls.-width modulation s.ngle-phas. inverter and double-s.age DC/DC boos. converter PERFORmANCE s.s.Em

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Direct microwave leaching conditions.of rare earth elements.in fluores.ent was.es

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol m.N.s.ridede s.s.Kaplan m.s.s.nmez Department of metallurgical and materials.Engineering Yildiz Technical UniversityIstanbulTurkey Department of Chemical Engineering and materials.s.ience Stevens Institute of TechnologyNew JereyUSA Department of metallurgical and materials.Engineering Istanbul Technical UniversityIstanbulTurkey

The lumines.ent phos.hor powder in the fluores.ent lamp cons.itutes.2%of the lamp’s.*** can be mentioned that fluores.ent was.es.are a crucial raw material to produce rare earth *** the pres.nt s.udy,microwave leaching proces. was.conducted to dis.olve rare earth elements.yttrium(Y),europium(Eu),and remaining rare earth elements.REEs.pres.nt in the phos.hor powder of the fluores.ent *** the yields.were *** the microwave leaching proces.,the effects.of the temperature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),s.lphuric acid(H_(2)s._(4))),acid concentration(0.5-6 mol/L),s.lid to liquid ratio(0.1:10-0.5:10)and reaction time(5-90 min)parameters.on leaching efficiencies.of varying rare earth elements.and calcium were *** highes. yield was.obtained in the direct microwave leaching of fluores.ent was.e with the experimental conditions.of 6 mol/L HCl,160℃,0.1:10 s.lid-to-liquid ratio(s.L),and 90 *** energy calculations.were made,and kinetic models.of the reactions.were obtained,and it is.obs.rved that Y and Eu dis.olution is.diffus.on-controlled,on the other hand,lanthanum(La),cerium(Ce),and terbium(Tb)were examined to be chemical reaction ***,calcium(Ca)and gadolinium(Gd)s.em coherent with the mixed ***,mathematical models.of all experimental s.udies.are created with the res.ons. s.rface Box-Behnken method and the correlation coefficients.of all the models.are over 90%.

关键词： Rare earth elements.REEs. Direct microwave leaching Fluores.ent was.e Kinetic models Res.ons. s.rface method

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QCD s.m rule s.udy of J^(P)=1^(±)exotic s.ates.with two heavy quarks.in the molecular picture

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Chines. Phys.cs.C 2024年第6期48卷 31-37页

作者： T.m.Aliev s.Bilmis.m.s.vcı Department of Phys.cs Middle East Technical UniversityAnkara06800Turkey TUBITAK ULAKBIm Ankara06510Turkey

In this.s.udy,the s.ectros.opic parameters.of exotic molecular s.ates.compos.d of mes.ns.containing two heavy quarks.s.alar-axial and ps.udos.alar-axial mes.n combinations.are inves.igated within the QCD s.m *** findings.reveal that molecular s.ates.containing charm quarks.do not form bound s.ates.whereas.s.ates.with b-quarks.can form exotic molecular *** obs.rvation has.s.gnificant implications.for unders.anding the s.ructure of thes. exotic s.ates.

关键词： QCD s.m rules exotic mes.ns molecular s.ates

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Analys.s.of s.rong decays.of s.(3)partners.ofΩ(2012)baryon

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Chines. Phys.cs.C 2024年第8期48卷 34-41页

作者： T.m.Aliev s.Bilmis.m.s.vci Department of Phys.cs Middle East Technical UniversityAnkara 06800Turkey TUBITAK ULAKBIm Ankara 06510Turkey

We es.imate the coupling cons.ants.and decay widths.of the s.(3)partners.of theΩ(2012)hyperon,as.dis.overed by the BELLE Collaboration,us.ng the dis.ribution amplitudes.of the octet baryons.within the light cone s.m rules.*** s.udy includes.a comparis.n of the obtained res.lts.for the relevant decay widths.with thos. derived within the framework of the flavor s.(3)*** obs.rve a good agreement between the predictions.of both ***,our res.lt on the decay width ofΩ→ΞK is.compatible with the exis.ing experimental res.lt within the uncertainties.of the model *** res.lts.can provide helpful ins.ghts.for determining the nature of the s.(3)partners.of theΩ(2012)baryon.

关键词： coupling cons.ants light cone s.m rule hyperon

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Enhancement of coercivity,permeability,and dielectric properties.of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites.for memory and high frequency devices

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Journal of Rare Earths 2024年第6期42卷 1128-1135,I0005页

作者： I.s.rdar m.D.Hos.ain m.s.s.kder m.N.I.Khan m.R.Rahman Phys.cs.Dis.ipline Khulna UniversityKhulna9208Bangladesh Department of Phys.cs Khulna University of Engineering&TechnologyKhulna9203Bangladesh Department ofComputer s.ience and Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh material s.ience Divis.on Atomic Energy CentreDhaka1000Bangladesh

s.inel cubic ferrites.have huge applications.in me mory and high frequency *** the improvement of thes. modern devices.the magnetic coercivity,permeability,and dielectric properties.of a ferrite are the important *** article focus.s.on improving the magnetic coercivity,magnetic permeability,and dielectric properties.of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites.where x=0.00,0.06,and *** X-ray diffraction(XRD),Fourier trans.orm infrared s.ectros.opy(FTIR),field emis.ion s.anning electron micros.opy(FEs.m),energy dis.ers.ve X-ray(EDX),vibrating s.mple magnetometer(Vs.),and an impedance analyzer were us.d to characterize the s.ructural,magnetic,and dielectric properties.of the *** XRD patterns.indicate the formation of s.inel cubic s.ructure of the s.mples.with a s.condary peak(EuFeO_(3))for Eu doped *** dens.ties.and poros.ties.of the s.mples.follow an invers. trend,where the doped s.mples.lattice parameters.are increas.d with the increment of rare earth Eu *** FTIR analys.s.als. proves.the s.inel cubic phas. of the *** average grain s.ze of the ferrites.is.obtained via FEs.m images.and it is.increas.d from 121 to 198 *** analys.s.confirms.that doping of the Eu content als. changes.other hys.eres.s.loop properties.of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu doped s.mples.is.greater than that of the mother alloy(x=0.00).The EDX s.udy s.ows.that there is.no impurity contamination in the *** permeability and dielectric meas.rements.s.ow an improved quality factor of the Eu-doped s.mples.with low magnetic and dielectric *** dependent res.s.ivity and impedance analys.s.als. s.ow the improved *** the obs.rved properties.of the s.mples.all the inves.igated ferrites.might be s.rong candidates.for potential applications.in memory devices.magnetic s.ns.rs.and high frequency applications.

关键词： Ferrites Raree arths Coercivity Permeability EDX Res.s.ivity

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Parametric inves.igation on the novel and cos.-effective nano fly as. impregnated geopolymer s.s.em for s.s.ainable cons.ruction

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Frontiers.of s.ructural and Civil Engineering 2024年第2期18卷 170-183页

作者： R.mOHANA s.m.Leela BHARATHI Department of Civil Engineering Mepco Schlenk Engineering CollegeSivakasi 626123India

The hazardous.environmental effects.of greenhous. gas.emis.ions.and climate change demand alternative s.urces.for cementitious.materials.in the cons.ruction *** development of geopolymer s.ructures.provides.a way of producing 100%cement-free *** this.res.arch work,a novel and s.mple way of deriving nano particles.from was.e fly as. particles.is.*** effect of adding the s.nthes.zed nano fly as. particles.as.a filler medium in geopolymer mortars.was.inves.igated by cons.dering s.rength and durability *** optimization was.done by us.ng regres.ion analys.s.on the geopolymer mortar and the impact of adding nano fly as. particles.was.s.udied by varying different percentages.of addition ranging from 0 to 7.5%by weight of binder *** the res.lts.it was.obs.rved that 1%nano fly as. acted not only as.a filler but als. as.nano-s.zed precurs.rs.of the polymerization proces.,res.lting in dens.r geopolymer *** can explain the extraordinary gain in s.rength of 72.11 mPa as.well as.the dens.r core with negligible level of chloride ion penetration,making the material s.itable for the development of s.ructures.s.s.eptible to marine environment.

关键词： geopolymer nano fly as. chloride ion penetration durability polymerization fillers

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Impact of carbimazole combined with vitamin E on tes.icular injury induced by experimental hyperthyroidis. in adult albino rats.oxidative/inflammatory/apoptotic pathways

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As.an Journal of Andrology 2024年第4期26卷 396-401页

作者： Ramadan s.Hus.ein mous.afa m Eyada Ras.ad m mos.afa s.mah m Elaidy s.ereen H Els.yed Hany m s.ad Department of Dermatology College of Medicine Prince Sattam Bin Abdulaziz UniversityAl-Kharj 16242Saudi Arabia Department of Dermatology Andrology and STDsAssiut Police HospitalAssiut 71525Egypt Department of Dermatology Venereology and AndrologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Andrology and s.xology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Clinical Pharmacology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Rehabilitation s.iences Faculty of Health and Rehabilitation SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 12271Saudi Arabia.

Thyroid hormones.play es.ential roles.in s.ermatogenes.s.but their effects.on infertile males.remain poorly *** s.udy aimed to evaluate the impact of combining carbimazole(CBZ)with vitamin E(VE)on tes.icular injury induced by experimental hyperthyroidis. in adult albino rats.focus.ng on oxidative,inflammatory,and apoptotic *** this.experimental s.udy,64 adult male albino Wis.ar rats.were divided into eight groups.Group I(control-untreated),Group II(CBZ-control),Group III(VE-control),Group IV(CBZ+VE-control),Group V(levothyroxine-induced tes.icular injury),Group VI(levothyroxine+CBZ-treated),Group VII(levothyroxine+VE-treated),and Group VIII(levothyroxine+CBZ+VE-treated).The s.udy was.conducted in the Faculty of medicine,s.ez Canal Univers.ty(Is.ailia,Egypt).After cervical decapitation,both tes.es.and epididymis.were examined his.opathologically and *** differences.were obs.rved among groups.concerning malondialdehyde(mDA),glutathione(Gs.),s.peroxide dis.utas.(s.D),and catalas.(CAT;all Pmeras. chain reaction analys.s.s.owed s.gnificant differences.in tumor necros.s.factor-α(TNF-α),interleukin-10(IL-10),Bcl-2-as.ociated X protein(BAX),B-cell lymphoma 2 protein(Bcl2),p53,Cas.as.-3,Cas.as.-8,Cas.as.-9,and nuclear factor-kappa B(NF-κB)mRNA levels.all Ps.icular s.de effects.affecting s.miniferous.tubules.and ***,the Group VIII s.owed improved s.ermatogenes.s.and a decreas. in tes.icular s.de *** addition of VE to the treatment of hyperthyroid rats.with CBZ reduced tes.icular s.de effects.and s.miniferous.tubular affection when potentially improving *** res.arch is.needed to elucidate the underlying mechanis.s.fully.

关键词： antithyroid drugs tes.icular injury thyroid gland vitamin E

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