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n.n.in.ar Lan.au dam.in. of high frequen.y waves in.n.n.m.xwellian.plasm.s

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Chin.se Physics B 2013年第11期22卷 385-389页

作者： m.n.S.qureshi Sum.ul Sehar J.K.Shi H.A.Shah Departm.n. of Physics GC University Cen.er for Space Scien.e an. Applied Research Chinese Academy of Sciences

Space plasm.s often.possess n.n.m.xwellian.distribution.fun.tion. which have a sign.fican. effect on.the plasm. waves. When.a laser or electron.beam.passes through a den.e plasm., hot low den.ity electron.population. can.be gen.rated to alter the wave dam.in./growth rate. In.this paper, we presen. theoretical an.lysis of the n.n.in.ar Lan.au dam.in. for Lan.m.ir waves in.a plasm. where two electron.population. are foun.. The results show a m.rked differen.e between.the m.xwellian.an. n.n.m.xwellian.in.tan.an.ous dam.in. rates when.we em.loy a n.n.m.xwellian.distribution.fun.tion.called the gen.ralized （r, q） distribution.fun.tion. which is the gen.ralized form.of the kappa an. m.xwellian.distribution.fun.tion.. In.the lim.tin. case of r = 0 an. q→∞, it reduces to the classical m.xwellian.distribution.fun.tion. an. when.r = 0 an. q→k ＋1, it reduces to the kappa distribution.fun.tion.

关键词： n.n.in.ar Lan.au dam.in. n.n.m.xwellian.distribution.fun.tion n.n.in.ar Lan.m.ir waves,wave-particle in.eraction

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.0}n. 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.0}xwellian.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

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： Eln.gi, Basem.E. Ism.iel, Ahm.d m. m.n.our, Han. S. E. Abd-Alwahab, m. n. Suez Can.l Un.v Fac Engn Elect Engn Dept Ismailia 41522 Egypt

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 con.erter. It was directly coupled to a sin.le-phase (two levels-four pulses) in.erter without a tran.form.r. The pulse-width m.dulation.sign.l was used to in.epen.en.ly regulate every con.erter phase. The con.erter was m.delled usin. a m.TLAB (R)/Sim.lin. (R) en.iron.0}n. an. an.appropriate voltage con.rol m.thod. The 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 con.rol. It 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.in.erter. The 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 63 m. s com.ared with 180 m. s in.con.en.ion.l techn.ques. A com.rehen.ive m.del of a proton.exchan.e m.m.ran. fuel cell stack is in.egrated with a sin.le-phase (two levels-four pulses) in.erter without a tran.form.r. Pulse-width m.dulation.is used to in.epen.en.ly regulate every con.erter phase. As a result, the dead tim. is reduced com.ared to con.en.ion.l techn.ques. Graphical Abstract

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

Experim.n.al validation.of double-fed in.uction.gen.rator in.oscillatin. water colum. usin. circulatory system.based optim.zation

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CLEAn.En.RGY 2024年第2期8卷 127-143页

作者： Eln.ghi, Basem.E. Ism.iel, Ahm.d m. Abdel-Kader, Fathy El Sayed m.ham.ed, Reham.H. Abelwhab, m. n. Suez Can.l Un.v Elect Power & Machine Dept Ismailia Egypt m.n.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 optim.l operation.for a grid-con.ected double-fed in.uction.gen.rator (DFIG) in.an.oscillatin. water colum. power plan. (OWCPP). This study presen.s a n.vel optim.zation.techn.que called the circulatory system.based optim.zation.(CSBO) approach to develop six adaptive fuzzy logic con.rollers (AFLCs) with 30 param.ters an. com.are them.to chaotic-billiards optim.zation.(C-BO) an. gen.tic algorithm.(GA). The proposed con.roller is also com.ared with a proportion.l-in.egral differen.ial (PID) con.roller based on.a self-adaptive global-best harm.n. search (SGHS). CSBO-based AFLCs are fully in.estigated un.er differen. scen.rios an. experim.n.ed with usin. a real-tim. in.erface DSP1104. The results of usin. CSBO-AFLCs revealed a fast tim. respon.e, fast con.ergen.e, less overshoot an. m.n.m.l error com.ared with those achieved with C-BO-AFLC, SGHS-PID an. GA-AFLC durin. differen. case studies. The CSBO-based AFLCs en.ure m.xim.m.power from.the DFIG in.an.OWCPP an. en.an.e dyn.m.c respon.e with very low errors. The results show that the CSBO shows better power trackin. by 25% as com.ared with C-BO, by 45% when.com.ared with the GA an. by 56% when.com.ared with PID. m.reover, the in.egral absolute errors of six con.rollers are in.estigated to dem.n.trate the feasibility of CSBO-AFLC. The root m.an.square of the errors of six con.rollers usin. CSBO is im.roved by 68.27% when.com.ared with GA, by 22.57% when.com.ared with C-BO an. by 38.42% when.com.ared with PID. These in.icators dem.n.trate the feasibility of CSBO when.com.ared with other algorithm. with the sam. OWCPP. This paper validates the optim.l operation.of a grid-con.ected double-fed in.uction.gen.rator in.an.oscillatin. water colum. usin. a n.vel optim.zation.techn.que called the circulatory system.based optim.zation.approach. Experim.n.s usin. a real-tim. sim.lator dem.n.trate the feasibility of the approach when.com.ared with other algorithm.. Graphical Abstract

关键词： circulatory system.based optim.zation.approach adaptive fuzzy logic con.roller grid-tied oscillatin. water colum. power plan. m.xim.m.power poin. trackin. WAVE En.RGY-COn.ERSIOn DESIGn.OPTIm.ZATIOn ALGORITHm COn.ROLLER TURBIn.

Tilted global solar irradian.e in.Bahrain. an.experim.n.al study

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CLEAn.En.RGY 2024年第2期8卷 27-34页

作者： Vasilikos, n. Georgan.opoulou, C. Alajaim., H. Alm.jed, S. H. Ahm.d, m. m.thioulakis, 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 global solar irradian.e data are presen.ed an. an.lysed, m.asured for a period of 1 year on.the cam.us of Bahrain.Polytechn.c, Kin.dom.of Bahrain. from.both a fixed photovoltaic pan.l an. a m.vin. on. via a two-axis solar tracker. The fixed pan.l faces south with an.an.le of 26 degrees with respect to the horizon.al, coin.idin. with the local geographical latitude. The secon. pan.l is m.ved by two m.tors, con.rolled by a global position.n. system.an. suitable software so that the Sun.s rays are perpen.icular to the pan.l surface. A pyran.m.ter is in.talled on.each pan.l, recordin. the tilted global solar irradian.e, stored by usin. a data logger. The an.lysis of the data obtain.d shows a 33% solar en.rgy gain.on.an.an.ual basis for the m.vin. pan.l (2780 versus 2088 kWh/m. on.the fixed pan.l). m.re im.ortan.ly, in.Jun., when.the en.rgy dem.n. in.Bahrain.is elevated due to the in.reased residen.ial coolin. loads, the solar en.rgy received by the m.vin. pan.l is 54.7% higher com.ared with that of the fixed pan.l. On.a percen.age basis, the in.rease in.solar en.rgy from.the m.vin. pan.l is profoun. in.the early m.rn.n. an. late even.n. hours. m.reover, the reduction.in.the solar en.rgy received by the fixed pan.l from.m.y to Jun. does n.t appear in.the m.vin. pan.l because of the adjustable orien.ation.of the latter. Throughout the year, the m.an.daily solar power varies between.0.37 an. 0.56 kW/m. for the fixed pan.l, an. 0.45 an. 0.70 kW/m. for the m.vin. pan.l. In.win.er, solar en.rgy fluctuation. are elevated due to erratic weather con.ition. that presen. a peak stan.ard deviation.of 28% of the correspon.in. m.an. The data presen.ed are useful for poten.ial solar in.estm.n.s in.Gulf coun.ries. Tilted global solar irradian.e data are m.asured an. an.lysed for a period of 1 year on.the cam.us of Bahrain.Polytechn.c, Kin.dom.of Bahrain. from.both a fixed photovoltaic pan.l an. a m.vin. on. via a two-axis solar tracker. Graphical Abstract

关键词： tilted solar irradian.e ren.wable en.rgy solar trackin. photovoltaic Gulf Cooperation.Coun.il Coun.ries SUn.TRACKIn. En.RGY SYSTEm. PAn.LS WORLD

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

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

作者： Pawar, Ran. P. Priyadarshin., Prajn. Dharm.raj, T. n.de, Dada P. Patil, m.hen.ra n. Patil, Om.ar m. Victor, n. Jen. Pawar, Sam.haji m. Kan.se, D. G. Pawar, Sun.l D. In.ian.In.t Trop m.teorol Minist Earth Sci Pune Maharashtra India Bharati Vidyapeeths Dr Patan.rao Kadam.m.havidya Dept Phys Sangli India IIG KSK Geomagnet Res Lab Allahabad Uttar Pradesh India San.ay Ghodawat Un.v Kolhapur Dept Phys Kolhapur India

On. of the m.st im.ortan. param.ters in.m.teorology is the m.an.win. pro fi le in.the tropical cyclon. boun.ary layer. The vertical pro fi le of win. speed an. win. direction.were m.asured durin. the period of the n.sarga cyclon. from.m.y 31st, 2020, to Jun. 5th, 2020, usin. the n.wly in.talled Phased Array Doppler Sodar system.at the Cen.er for Space an. Atm.spheric Scien.e (CSAS), San.ay Ghodawat Un.versity, Kolhapur (16.74 degrees n. 74.37 degrees E; n.ar In.ia ' s western.coast). Our an.lysis revealed that the m.xim.m.m.an.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 high-resolution.rean.lysis data in.the dom.in. 0 - 25 degrees n. 65 - 110 degrees E, durin. the period from.m.y 31st to Jun. 5th, 2020, revealed the variation.of the atm.spheric pressure of the n.sarga cyclon. from.1000 to 1008 hPa, sea surface tem.erature (SST) between.30 degrees C an. 31 degrees C, outgoin. 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.sarga track. These observation. m.y provide m.re in.ights for the study of boun.ary layer turbulen.e durin. cyclon.c activities. (c) 2024 The Shan.hai Typhoon.In.titute of Chin. m.teorological Adm.n.stration. Publishin. services by Elsevier B.V. on.behalf of KeAi Com.un.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. Atm.spheric boun.ary layer Vertical turbulen.e in.en.ity VERTICAL WIn. SHEAR TROPICAL CYCLOn.S SODAR OBSERVATIOn. GRAVITY-WAVES PERSPECTIVES TEm.ERATURE In.En.ITY m.n.OOn BEn.AL BAY

Feedin. behavior an. horm.ligosis associated with im.dacloprid resistan.e in.Asian.citrus psyllid,Diaphorin. citri

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In.ect Scien.e 2024年第4期31卷 1211-1221页

作者： Xue Don. Chen.Justin.George Lauren.m.Diepen.rock Hun.er Gossett Guopin. Liu Jawwad A.qureshi Lukasz L.Stelin.ki En.om.logy an. n.m.tology Departm.n. University of FloridaCitrus Research and Education CenterLake AlfredFloridaUSA Southern.In.ect m.n.gem.n. Research Un.t USDA-ARSStonevilleMississippiUSA En.om.logy an. n.m.tology Departm.n. University of FloridaSouthwest Florida Research and Education CenterImmokaleeFloridaUSA

Im.dacloprid is a n.on.cotin.id in.ecticide used for m.n.gin. the Asian.citrus psyllid,Diaphorin. citri Kuwayam.,which serves as vector of phytopathogen. causin. citrus ***,developm.n. of resistan.e to n.on.cotin.ids am.n. population. of *** has coin.ided with occasion.l con.rol failures in.the *** objectives of this research were to(1)survey curren. levels of im.dacloprid resistan.e in.Florida citrus;(2)com.are feedin. behavior between.im.dacloprid-resistan. an. susceptible *** usin. electrical pen.tration.graph recordin.s,an.(3)in.estigate the possible am.lification.of in.ecticide horm.ligosis associated with *** surveys con.irm.d that the susceptibility of *** population. to im.dacloprid has decreased in.com.ercial Florida citrus groves com.ared with a laboratory-susceptible *** 12 gen.ration. of selection.resistan.e to im.dacloprid in.reased by 438 fold com.ared with the susceptible ***-susceptible *** feedin. on.citrus exhibited sign.fican.ly m.re bouts associated with in.ercellular pathway(C),phloem.pen.tration.D),phloem.salivation.E1),an. n.n.robin.(n.)activities than.im.dacloprid-resistan. ***,there were n. differen.es observed in.the frequen.y or duration.of phloem.in.estion.or xylem.feedin. between.susceptible an. resistan. *** was n. statistical differen.e in.fecun.ity between.resistan. an. susceptible ***,the fecun.ity of im.dacloprid-susceptible fem.le *** treated with a sublethal con.en.ration.of im.dacloprid(LC_(25))in.reased sign.fican.ly com.ared with con.rols,while such horm.ligosis was less pron.un.ed am.n. im.dacloprid-resistan. *** results suggest that im.dacloprid-resistan. psyllids m.y cease feedin. soon.r than.susceptible coun.erparts followin. sublethal exposure to this in.ecticide,in.icative of a behavioral resistan.e m.chan.sm.

关键词： artificial selection electrical pen.tration.graph feedin. behavior horm.ligosis in.ecticide resistan.e sublethal exposure

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

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