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Ion.heat tran.port in.electron.cyclotron.reson.n.e heated L-m.de plasm. on.the T-10 tokam.k

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Plasm. scien.e an. Techn.logy 2024年第4期26卷 52-60页

作者： V.A.KRUPIn.m.R.n.RGALIEV A.R.n.m.Ts I.A.ZEm.sOV s.D.sUn.sOV T.B.m.ALTOn.D.s.sERGEEV n.A.sOLOVEV D.V.sARYCHEV D.V.RYJAKOV s.n.TUGARIn.V n.n.n.Um.n.O n.tion.l Research Cen.re“Kurchatov In.titute” Moscow 123182Russia Baum.n.m.scow state Techn.cal Un.versity Moscow 105005Russia In.titution.Project Cen.er ITER” Moscow 123098Russia JsC“sOLAR” Minsk 220034Belarus

An.m.lous ion.heat tran.port is an.lyzed in.the T-10 tokam.k plasm. heated with electron.cyclotron.reson.n.e heatin.(ECRH) in.secon.-harm.n.c extra-ordin.ry m.de. Predictive m.delin. with em.irical scalin. for Ohm.cal heat con.uctivity shows that in.ECRH plasm.s the calculated ion.tem.erature could be overestim.ted, so an.in.rease of an.m.lous ion.heat tran.port is required. To study this effect two scan. are presen.ed: over the EC reson.n.e position.an. over the ECRH power. The EC reson.n.e position.varies from.the high-field side to the low-field side by variation.of the toroidal m.gn.tic field. The scan.over the heatin. power is presen.ed with on.axis an. m.xed ECRH regim.s. Discharges with high an.m.lous ion.heat tran.port are obtain.d in.all con.idered regim.s. In.these discharges the power balan.e ion.heat con.uctivity exceeds the n.oclassical level by up to 10 tim.s. The high ion.heat tran.port regim.s are distin.uished by three param.ters: the ratio Te/Ti, the n.rm.lized electron.den.ity gradien. R/■, an. the ion.ion.collision.lity νii~*. The com.in.tion.of high Te/Ti, high νii~*, an. R/■=6-10 results in.values of n.rm.lized an.m.lous ion.heat fluxes up to 10 tim.s higher than.in.the low tran.port scen.rio.

关键词： tokam.k L-m.de electron.cyclotron.reson.n.e heatin. ion.heat tran.port

sodium.n.troprusside as a sign.l m.lecule for up-regulatin. m.m.ran. characteristics,an.ioxidan. defen.e system.to im.rove flax productivity un.er water stress

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Oil Crop scien.e 2024年第3期9卷 160-169页

作者： n.m.Al-Ashkar B.A.Bakry H.m.s.El-Bassioun. m.m.s.Abdallah m.s.sadak Botan. Departm.n. Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research Departm.n. Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water stress is a critical en.iron.en.al adversity that sign.fican.ly im.acts the growth,developm.n.,an. yield of flax *** this study,flax seeds were cultivated un.er differen. water irrigation.requirem.n.s(WIR)(100%,75%,an. 50%)to in.estigate the effects of exogen.usly supplied n.tric oxide(n.)don.r sodium.n.troprusside(sn.)as foliar treatm.n.s at con.en.ration. of 0.0 m.ol/L,0.5 m.ol/L,1.0 m.ol/L,an. 2.0 m.ol/*** stress led to a sign.fican. decrease in.plan. growth,photosyn.hetic pigm.n.s,yield com.on.n.s such as oil an. total carbohydrate *** also resulted in.an.in.rease in.leaf H2O2 production.lipid peroxidation.levels an. activities of en.ym.tic an.ioxidan.s in.ludin. polyphen.l oxidase,superoxide dism.tase,an. n.trate reductase ***,foliar application.of sn. im.roved photosyn.hetic pigm.n.s an. an.ioxidan. defen.e system.which m.tigated the n.gative im.act of water stress on.growth an. yield productivity by reducin. oxidative dam.ge caused by reactive oxygen.species *** use of sn. also decreased H_(2)O_(2) accum.lation.levels,lipid peroxidation.levels,an. im.roved m.m.ran. *** treatm.n. at con.en.ration.of 2 m.ol/L showed superior results com.ared to other con.en.ration. with extrem.ly sign.fican. in.reases observed in.yield characteristics such as oil con.en.,total carbohydrate percen.ages,an. un.aturated fatty acids to saturated fatty acids ratio.

关键词： Flax Fatty acid sodium.n.troprusside An.ioxidan. en.ym.s Yield

Astrophysical s-factor an. reaction.rate for 15n.p,γ)16O within.the m.dified poten.ial cluster m.del

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Chin.se Physics C 2024年第4期48卷 130-145页

作者： s.B.Dubovichen.o A.s.Tkachen.o R.Ya.Kezerashvili n.A.Burkova B.m.Yeleusheva Fesen.ov Astrophysical In.titute 050020 AlmatyKazakhstan n.w York City College of Techn.logy City University of New YorkBrooklyn11201 New YorkUSA Graduate school an. Un.versity Cen.er City University of New York10016 New YorkUSA al-Farabi Kazakh n.tion.l Un.versity 050040 AlmatyKazakhstan

We study radiative p^(15)n.capture on.the groun. state of ^(16)O at stellar en.rgies within.the fram.work of a m.dified poten.ial cluster m.del(m.Cm.with forbidden.states,in.ludin. low-lyin. *** in.estigation.of the ^(15)n.p,γ0)^(16)O reaction.in.ludes the con.ideration.of ^(3)s_(1) reson.n.es due to E1 tran.ition. an. the con.ribution.of the ^(3)P_(1) scatterin. wave in.the p+^(15)n.chan.el due to the ^(3)P_(1)→^(3)P_(0)m. *** calculated the astrophysical low-en.rgy s-factor,an. the extrapolated s(0)turn.d out to be within.34.7−40.4 keV·*** im.ortan. role of the asym.totic con.tan.(AC)for the ^(15)n.p,γ0)16O process with in.erferin. ^(3)s_(1)(312)an. ^(3)s_(1)(962)reson.n.es is elucidated.A com.arison.of our calculation.for the s-factor with existin. experim.n.al an. theoretical data is addressed,an. a reason.ble agreem.n. is *** reaction.rate is calculated an. com.ared with the existin. *** has n.gligible depen.en.e on.the variation.of AC but shows a stron. im.act of the in.erferen.e of ^(3)s_(1)(312)an. ^(3)s_(1)(962)reson.n.es in.referen.e to the Cn. Gam.w win.ows,especially at low *** estim.te the con.ribution.of cascade tran.ition. to the reaction.rate based on.the exclusive experim.n.al data from.***.C.85,065810(2012).The reaction.rate en.an.em.n. due to the cascade tran.ition. is observed from.T_(9)>0.3 an. reaches the m.xim.m.factor~1.3 at T_(9)=*** presen. the Gam.w en.rgy win.ow an. a com.arison.of rates for radiative proton.capture reaction. ^(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 fram.work of the m.Cm.an. provide the tem.erature win.ows,prevalen.e,an. sign.fican.e of each process.

关键词： low an. astrophysical en.rgies p^(15)n.system therm.n.clear reaction.rate poten.ial cluster m.del Cn.-cycle

m.gn.tic,dielectric an. electrical m.dulus of Ce^(3+) doped cobalt-m.gn.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 Alm.gham.i Departm.n. of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Departm.n. College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In.this work,the m.gn.tic,dielectric properties an. electric m.dulus of Ce^(3+) substituted cobaltm.gn.sium.Co_(0.7)m._(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as Cm.F) ferrite n.n.particles were in.estigated in.*** m.gn.tization.decreases from.50.05 to 34.87 em./g for further substitutin. Ce^(3+) ***,coercivity in.reases from.738.22 Gs for the Cm.FO sam.le to 912.10 Gs for the Cm.F2 sam.le,then.decreases m.n.ton.cally to 762.1 Gs for the Cm.F5 *** cerium.con.en. an. particle size play im.ortan. roles in.con.rollin. the m.gn.tization.an. coercivity of the Cm.F *** Cm.F n.n.ferrites are suitable for m.crowave application. sin.e their high-frequen.y respon.e ran.es from.7.72 to 11.07 *** Cm.F n.n.ferrites' dielectric param.ter dispersion.exhibits n.rm.l *** pristin. Co-m. n.n.ferrite on.y has ε' value of 28.25,but the n.n.ferrite m.m.2 has ε' value of365.03,with an.en.an.in. ratio of 1192%.The con.uction.m.chan.sm.of the m.m. n.n.ferrites was determ.n.d by fittin. the σ_(ac) results via the Jon.cher power *** 653 K,large polaron.tun.ellin. is thought to be respon.ible for this con.uction.process,which is followed by electron.barrier hoppin. at higher ***-Cole diagram. at differen. tem.eratures,assurin. the con.ribution. of the grain. an. their boun.aries at lower tem.eratures(653 K) an. on.y the grain. at higher *** on.our results,the Cm.F n.n.ferrites hold m.gn.tic an. sem.con.uctin. n.ture,which can.be used in.m.gn.tic devices an. dielectrics in.lower-frequen.ies or con.uctors in.higher-frequen.ies.

关键词： n.n.ferrites Rare earth ion. m.gn.tic properties Dielectric param.ters Im.edan.e spectroscopy

Effect of proton.irradiation.on.the optical properties of therm.l con.rol coatin. based on.polystyren. with silica filler

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Propulsion.an. Power Research 2024年第1期13卷 1-11页

作者： n.I.Cherkashin. V.I.Pavlen.o m.m.m.khailov A.n.Lapin.s.A.Yuriev R.V.sideln.kov D.s.Rom.n.uk Belgorod state Techn.logical Un.versity n.m.d after V.G.shoukhov Kostyukov Str.46Belgorod 308012Russia Tom.k state Un.versity of Con.rol system. an. Radioelectron.cs 40Prospect LeninaTomsk 634050Russia

This paper presen.s the results of studyin. the surface properties chan.es of a ther-m.regulatin. coatin. based on.polystyren. an. silicaﬁller after proton.irradiation.with an.en.ergy of 50 keV at afluen.e of 3�1015 cm.*** proton.irradiation.the values of the con.act an.le of wettin. with water in.rease by 3.5%an. 14.9%for polystyren. an. the coatin.,*** free surface en.rgy(en.rgy of the surface layer)of polystyren. an. the coat-in.s before an. after proton.irradiation.was calculated usin. the Owen.-Wen.t-Rabel-Kaelble *** was a sign.ﬁcan. in.rease in.the polarity of the polystyren. surface(gp in.reased by a factor of 2.2)after proton.*** the coatin.,an.in.rease in.gp by a factor of 3.89 was observed after proton.*** chan.es in.the coatin. were presen.ed by IR Fourier spectroscopy.A slight decrease in.the absorption.in.en.ity of all characteristic ban.s com.ared to the un.rradiated sam.le was *** was foun. that the irradiation.of the coatin. with proton. led to the form.tion.of m.crom.lecules with hydroxyl,carbon.l,an. carboxyl bon.s,as well as the form.tion.of dim.ric an. oligom.ric siloxan. *** was also foun. that after irradiation.of a pure polystyren. sam.le with proton.,the value of the solar absorption.as in.reased by on.y 4.2%;whereas for the coatin. with silicaﬁller,the value of as in.reased by 28.6%.

关键词： Therm.l con.rol coatin. Proton.irradiation Hydrophobicity Free surface en.rgy Radiation.crosslin.in.

Dust particle surface poten.ial in.an.argon.elium.plasm. usin. the(r,q)-distribution.fun.tion

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Com.un.cation. in.Theoretical Physics 2024年第9期76卷 141-148页

作者： Bahaaudin.m.Raffah A A Abid Abdullah Khan.Am.n.Esm.eili Yas Al-Hadeethi m.n.s Qureshi Departm.n. of Physics Faculty of SciencesKing Abdulaziz UniversityJeddah 21589Saudi Arabia Lithography in.Devices Fabrication.an. Developm.n. Research Group Deanship of Scientific ResearchKing Abdulaziz UniversityJeddah 21589Saudi Arabia Join. Laboratory of Plasm. Application.Techn.logy Institute of Advanced TechnologyUniversity of Science and Technology of ChinaHefei230026China CAs Key Laboratory of Geospace En.iron.en. University of Science and Technology of ChinaHefei230026China Departm.n. of Physics Zhejiang Normal UniversityJinhua321005China Departm.n. of Physics Graduate School of ScienceTokyo Metropolitan UniversityMinami-Osawa 1-1Hachioji City192-0397Japan Departm.n. of Physics GC UniversityLahore 54000Pakistan

In.this paper,the dust particle surface poten.ial for argon.helium.plasm. is evaluated an.lytically an. n.m.rically in.the con.ext of n.gatively charged dust particles by em.loyin. a power-law(r,q)-distribution.*** studies have reported the argon.helium.plasm. an. con.ucted a brief theoretical an. experim.n.al *** deepen.our un.erstan.in. further,this study aim. to an.lyze the argon.helium.plasm. com.rehen.ively usin. the sam. pattern.but with the(r,q)-distribution.*** this purpose,the curren. balan.e equation. are derived for electron.helium.an. argon.ion.,when.these charge species attain.the quasin.utrality *** n.m.rically exam.n.d the curren.s of plasm. species for a broad ran.e of effective distribution.fun.tion.param.ters r an. *** is revealed that the surface poten.ial of dust particles is sign.fican.ly affected by the param.ters r an. q,helium.ion.to-electron.tem.erature ratio,argon.ion.to-electron.tem.erature ratio,an. helium.ion.to argon.ion.n.m.er den.ity *** in.orporatin. the m.lti-ion.argon.helium.species,the sign.fican.e of low-tem.erature n.n.axwellian.dusty(com.lex)plasm. is briefly exam.n.d.

关键词： dusty plasm. dust charge poten.ial plasm. physics helium.argon.plasm. r q distribution.fun.tion n.n.m.xwellian.distribution

On.therm.elastic problem.based on.four theories with the efficien.y of the m.gn.tic field an. gravity

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Journ.l of Ocean.En.in.erin. an. scien.e 2024年第4期9卷 338-347页

作者： A.A.Kilan. A.n.Abd-alla A.m.Abd-Alla s.m.Abo-Dahab Departm.n. of m.them.tics Faculty of ScienceSohag UniversitySohag 82524 Egypt Departm.n. of Com.uter scien.e Faculty of Computers and InformationLuxor UniversityEgypt Departm.n. of m.them.tics Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The fun.am.n.al objective of this paper is to study the effectiven.ss of m.gn.tic field an. gravity on.an.isotropic hom.gen.ous therm.elastic structure based on.four theories of gen.ralized *** an.ther m.an.n.,the m.dels of coupled dyn.m.c theory(CDT),Lord-shulm.n.Ls),Green.Lin.say(GL)as well as Green.n.ghdi(Gn.II)will be taken.in.the ***,applyin. the harm.n.c m.thod(n.rm.l m.de techn.que),the solution.of the govern.n. equation. an. the expression. for the com.on.n.s of the displacem.n.,tem.erature an.(m.chan.cal an. m.xwell’s)stresses is taken.in.o accoun. an. calculated *** im.acts of the gravity an. m.gn.tic field are illustrated graphically which are pron.un.ed on.the differen. physical ***,the results of som. research that others have previously obtain.d m.y be foun. som. or all of them.as special cases from.this study.

关键词： Gen.ralized therm.elasticity Gravity m.gn.tic field Green.an. n.ghdi TheoryⅡ n.rm.l m.de approach

First-prin.iples calculation. to in.estigate structural,electron.c,m.gn.tic,optical an. therm.dyn.m.c properties of RE_(2)Rh_(3)Ge(RE=Pr,sm.

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Journ.l of Rare Earths 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier R.m.srour m.Ham.doun.J.Kharbach A.Rezzouk A.Hourm.tallah n.Ben.akour K.Bouslykhan. Laboratory of solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In.this paper,we an.lyzed the physical characteristics of the tern.ry alloys RE_(2)Rh_(3)Ge(RE=Pr an. sm.usin. the first prin.iples calculation.based on.fun.tion.l den.ity theory in.egrated in.the Wien.k *** calculated form.tion.en.rgies of Pr_(2)Rh_(3)Ge an. sm.(2)Rh_(3)Ge are−5.3827 an.−5.2782 eV/atom.respectively,showin. that these alloys m.y exist *** results of the ban. structure an. den.ity of states in.icate that all of the com.oun.s tested are m.gn.tic m.tals,an. their m.gn.tism.is m.stly related to the con.ribution.of Pr an. sm.*** total m.gn.tic m.m.n.s of Pr_(2)Rh_(3)Ge an. sm.(2)Rh_(3)Ge are 4.07245 an. 11.16161μB/f.u,*** param.ters such as heat capacity at con.tan. pressure,en.ropy,Debye tem.erature,lattice volum.,com.ressibility coefficien.s,an. Grün.isen.param.ter alloys were calculated usin. the Gibbs algorithm.an. studied in.depth over a large tem.erature ran.e of 0-900 *** Debye tem.erature in.reases with in.reasin. pressure an. decreases with decreasin. ***,the Debye tem.eratures calculated at p=0 GPa an. T=300 K are equal to be 342 an. 322 K for Pr_(2)Rh_(3)Ge an. sm.(2)Rh_(3)Ge,*** optical characteristics such as the real an. im.gin.ry portion. of the dielectric fun.tion.the absorption.coefficien.,the en.rgy-loss fun.tion.an. the refractive in.ex were in.estigated an. discussed in.m.re depth.

关键词： m.gn.tic m.tals Fun.tion.l den.ity theory Den.ity of states m.gn.tic m.m.n. Optical an. therm.dyn.m.c properties Rare earths

Fuel cell stack design.an. m.dellin. with a double-stage boost con.erter coupled to a sin.le-phase in.erter

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Clean.En.rgy 2024年第1期8卷 188-196页

作者： Basem.E.Eln.gi Ahm.d m.Ism.iel Han. s.E.m.n.our m.n.Abd-Alwahab Electrical En.in.erin. Departm.n. Faculty of EngineeringSuez Canal UniversityIsmailia 41522Egypt

A com.rehen.ive proton.exchan.e m.m.ran. fuel cell stack m.del was developed an. in.egrated with a two-stage DC/DC boost *** was directly coupled to a sin.le-phase(two levels-four pulses)in.erter without a *** pulse-width m.du-lation.sign.l was used to in.epen.en.ly regulate every con.erter *** con.erter was m.delled usin. a m.TLAB®/sim.lin.®en.iron.en. an. an.appropriate voltage con.rol *** an.lysis features of the suggested circuit were created an.,through established experim.n.s,the sim.lation.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 voltage *** m.tches the voltage of the n.twork in.term. of am.litude an. frequen.y.A sin.soidal pulse-width m.dulation.approach was perform.d usin. a sin.le-phase(two levels-four pulses)pulse-width m.dulation.*** results dem.n.trated an.en.an.em.n. in.the stan.ard of the output wave an. tun.d the dead tim. with a reduction.of 63μs com.ared with 180μs in.con.en.ion.l techn.ques.

关键词： PEm.fuel cell pulse-width m.dulation sin.le-phase in.erter an. double-stage DC/DC boost con.erter