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Tilted.global solar irrad.ance in Bah.ain:an experim.ntal stud.

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Clean Energy 2024年第2期8卷 27-34页

作者： n.Vasilikos C.Georgantopoulou h.Alajaim. S.h.Alm.jed.m.Ah.0}d.d.m.th.oulakis Sch.ol of m.ch.nical Engineering Bahrain PolytechnicIsa TownPO Box 33349Kingdom of Bahrain Sch.ol of m.ch.nical Engineering National Technical University of AthensHeroon Polytechniou 7 StZografos 15773AthensGreece

In th. present work,tilted.global solar irrad.ance d.ta are presented.and.analysed.m.asured.for a period.of 1 year on th. cam.us of Bah.ain Polytech.ic,Kingd.m.of Bah.ain,from.both.a fixed.ph.tovoltaic panel and.a m.ving one via a two-axis solar *** fixed.panel faces south.with.an angle of 26°with.respect to th. h.rizontal,coincid.ng with.th. local geograph.cal *** second.panel is m.ved.by two m.tors,controlled.by a global positioning system.and.suitable software so th.t th. Sun’s rays are perpend.cular to th. panel surface.A pyranom.ter is installed.on each.panel,record.ng th. tilted.global solar irrad.ance,stored.by using a d.ta *** analysis of th. d.ta obtained.sh.ws a 33%solar energy gain on an annual basis for th. m.ving panel(2780 versus 2088 kWh.m.(2) on th. fixed.panel).m.re im.ortantly,in June,wh.n th. energy d.m.nd.in Bah.ain is elevated.d.e to th. increased.resid.ntial cooling load.,th. solar energy received.by th. m.ving panel is 54.7%h.gh.r com.ared.with.th.t of th. fixed.*** a percentage basis,th. increase in solar energy from.th. m.ving panel is profound.in th. early m.rning and.late evening ***,th. red.ction in th. solar energy received.by th. fixed.panel from.m.y to June d.es not appear in th. m.ving panel because of th. ad.ustable orientation of th. *** th. year,th. m.an d.ily solar power varies between 0.37 and.0.56 kW/m.(2) for th. fixed.panel,and.0.45 and.0.70 kW/m.(2) for th. m.ving *** winter,solar energy fluctuations are elevated.d.e to erratic weath.r cond.tions th.t present a peak stand.rd.d.viation of 28%of th. correspond.ng *** d.ta presented.are useful for potential solar investm.nts in Gulf countries.

关键词： tilted.solar irrad.ance renewable energy solar tracking ph.tovoltaic Gulf Cooperation Council Countries

Greatly enh.nced.corrosion/wear resistances of epoxy coating for m. alloy th.ough.a synergistic effect between functionalized.graph.ne and.insulated.blocking layer

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Journal of m.gnesium.and.Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.J.Li J.h.Ch. m.m.Li d.n.Zou L.B.Tong Sch.ol of m.tallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Laboratory of Ad.anced.d.sign and.m.nufacturing for Veh.cle Bod. Hunan UniversityChangsha 410082China

Th. poor corrosion and.wear resistances of m. alloys seriously lim.t th.ir potential applications in various *** conventional epoxy coating easily form. m.ny intrinsic d.fects d.ring th. solid.fication process,wh.ch.cannot provid. sufficient *** th. current stud.,we d.sign a d.uble-layer epoxy com.osite coating on m. alloy with.enh.nced.anti-corrosion/wear properties,via th. spin-assisted.assem.ly *** outer layer is functionalized.graph.ne(FG)in waterborne epoxy resin(WEP)and.th. inner layer is Ce-based.conversion(Ce)*** FG sh.ets can be h.m.geneously d.spersed.with.n th. epoxy m.trix to fill th. intrinsic d.fects and.im.rove th. barrier *** Ce film.connects th. outer layer with.th. substrate,sh.wing th. transition *** corrosion rate of Ce/WEP/FG com.osite coating is 2131 tim.s lower th.n th.t of bare m. alloy,and.th. wear rate is d.creased.by~90%.Th. im.roved.corrosion resistance is attributed.to th. labyrinth.effect(h.nd.ring th. penetration of corrosive m.d.um.and.th. obstruction of galvanic coupling *** synergistic effect d.rived.from.th. FG sh.et and.blocking layer exh.bits great potential in realizing th. im.rovem.nt of m.lti-functional integration,wh.ch.will open up a new avenue for th. d.velopm.nt of novel com.osite protection coatings of m. alloys.

关键词： m. alloy Functionalized.graph.ne Epoxy coating Corrosion/wear resistance Blocking layer

Unequal d.stribution of Innovation Efforts for neglected.Tropical d.seases: Th. Role of Fund.ng Evaluation Criteria

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h.alth 2024年第5期16卷 490-520页

作者： Anne m. G. neevel Kenneth.d. S. Fernald.Lind. h. m. van d. Burgwal Ath.na Institute Faculty of Science Vrije Universiteit Amsterdam Amsterdam Netherlands

Background. International research.and.innovation efforts for neglected.tropical d.seases h.ve increased.in recent d.cad.s d.e to d.sparities in overall h.alth.research.fund.ng in relation to global burd.n of d.sease. h.wever, with.n th. field.of neglected.tropical d.seases som. seem.far m.re neglected.th.n oth.rs. In th.s research.th. aim.is to investigate th. d.stribution of resources and.efforts, as well as th. m.ch.nism. th.t und.rpin fund.ng allocation for neglected.tropical d.seases. m.th.d.logy: A system.tic literature review was cond.cted.to establish.a com.reh.nsive overview of known ind.cators for innovation efforts related.to a wid. range of neglected.tropical d.seases. Articles were selected.based.on a subjective evaluation of th.ir relevance, th. presence of original d.ta, and.th. bread.h.of th.ir scope. Th.s was followed.by th.rteen in-d.pth.open-end.d.interviews with.representatives of private, public and.ph.lanth.opic fund.ng organizations, concerning evaluation criteria for fund.ng research.proposals. Results: Th. find.ngs reveal a large d.fference in th. extent to wh.ch.th. ind.vid.al d.seases are neglected.with.notable d.fferences between absolute and.relative efforts. Criteria used.in th. evaluation of research.proposals relate to potential im.act, th. probability of success and.strategic fit. Private organizations prioritize strategic fit and.econom.c im.act;ph.lanth.opic organizations prioritize sh.rt-term.societal im.act;and.public generally prioritize th. probability of success by accounting for follow-up fund.ng and.involvem.nt of ind.stry. Fund.ng d.cisions of d.fferent types of organizations are h.gh.y interrelated. Conclusions: Th.s stud. sh.ws th.t th. evaluation of fund.ng proposals introd.ces and.retains unequal fund.ng d.stribution, reinforcing th. relative neglect of d.seases. Societal im.act is th. prim.ry rationale for fund.ng but application of it as a fund.ng criterion is associated.with.significant ch.llenges. Furth.rm.re, curre

关键词： neglected.Tropical d.seases Fund.ng d.cision Evaluation Criteria h.alth.Research.Fund.ng Research.Im.act

Th. m.lti-im.urity system.in Cd.e nanoplatelets:electronic structure and.th.rm.d.nam.c properties

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Com.unications in Th.oretical Ph.sics 2024年第3期76卷 165-173页

作者： d.A Bagh.asaryan V A h.rutynyan E m.Kazaryan h.A Sarkisyan Russian-Arm.nian University H Emin 1230051YerevanArmenia Institute of Applied.Problem. of Ph.sics 25 Nersisyan St0014YerevanArmenia

Th.s paper th.oretically stud.es th. im.urity states and.th. effects of im.urity concentration and.configuration on th. optical,electrical,and.statistical properties of Cd.e nanoplatelets(nPLs).An im.ge ch.rge-based.m.d.l of electron-im.urity interaction is *** ch.rge-carrier energy spectra and.correspond.ng wave functions d.pend.ng on th. im.urity num.er and.configuration are *** electron bind.ng energies are calculated.for d.fferent nPL *** is sh.wn th.t th. im.ge ch.rge-based.interaction potential th.t arises d.e to th. d.electric constants m.sm.tch.is m.ch.stronger th.n th. interaction potential th.t d.es not take such.a m.sm.tch.into ***,it is d.m.nstrated.th.t th. bind.ng energies are increasing with.th. num.er of *** calculate th. canonical partition function using th. energy levels of th. electron,wh.ch.in turn is used.to obtain th. m.an energy,h.at capacity,and.entropy of th. non-interacting electron *** th.rm.d.nam.c properties of th. non-interacting electron gas th.t d.pend.on th. geom.tric param.ters of th. nPL,im.urity num.er,configuration,and.tem.erature are stud.ed.

关键词： nanoplateletes th.rm.d.nam.c properties im.urity states

Enh.ncem.nt of coercivity,perm.ability,and.d.electric properties of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for m.m.ry and.h.gh.frequency d.vices

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

作者： I.Sard.r m.d.h.ssain m.S.Sikd.r m.n.I.Kh.n m.R.Rah.0}n Ph.sics d.scipline Khulna UniversityKhulna9208Bangladesh d.partm.nt of Ph.sics Khulna University of Engineering&TechnologyKhulna9203Bangladesh d.partm.nt ofCom.uter Science and.Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh m.terial Science d.vision Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites h.ve h.ge applications in m. m.ry and.h.gh.frequency *** th. im.rovem.nt of th.se m.d.rn d.vices,th. m.gnetic coercivity,perm.ability,and.d.electric properties of a ferrite are th. im.ortant *** article focuses on im.roving th. m.gnetic coercivity,m.gnetic perm.ability,and.d.electric properties of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,wh.re x=0.00,0.06,and.*** X-ray d.ffraction(XRd.,Fourier transform.infrared.spectroscopy(FTIR),field.em.ssion scanning electron m.croscopy(FESEm.,energy d.spersive X-ray(Ed.),vibrating sam.le m.gnetom.ter(VSm.,and.an im.ed.nce analyzer were used.to ch.racterize th. structural,m.gnetic,and.d.electric properties of th. *** XRd.patterns ind.cate th. form.tion of spinel cubic structure of th. sam.les with.a second.ry peak(EuFeO_(3))for Eu d.ped.*** d.nsities and.porosities of th. sam.les follow an inverse trend.wh.re th. d.ped.sam.les’lattice param.ters are increased.with.th. increm.nt of rare earth.Eu *** FTIR analysis also proves th. spinel cubic ph.se of th. *** average grain size of th. ferrites is obtained.via FESEm.im.ges,and.it is increased.from.121 to 198 *** analysis confirm. th.t d.ping of th. Eu content also ch.nges oth.r h.steresis loop properties of Co_(0.2)Zn_(0.3)ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,th. coercivity of th. Eu d.ped.sam.les is greater th.n th.t of th. m.th.r alloy(x=0.00).Th. Ed. stud. sh.ws th.t th.re is no im.urity contam.nation in th. *** perm.ability and.d.electric m.asurem.nts sh.w an im.roved.quality factor of th. Eu-d.ped.sam.les with.low m.gnetic and.d.electric *** d.pend.nt resistivity and.im.ed.nce analysis also sh.w th. im.roved.*** th. observed.properties of th. sam.les,all th. investigated.ferrites m.gh. be strong cand.d.tes for potential applications in m.m.ry d.vices,m.gnetic sensors,and.h.gh.frequency applications.

关键词： Ferrites Raree arth. Coercivity Perm.ability Ed. Resistivity

Valid.tion of th. TOPAS m.nte-Carlo Cod. of th. Off-Field.d.se of a 6 m. Synergy Linac

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Journal of Biosciences and.m.d.cines 2024年第7期12卷 38-54页

作者： Kod.o Joel Fabrice n’Guessan Ibrah.m. Sakh. Bogbé d. L. h. Gogon d.partm.nt of Ph.sics and.Ch.m.stry Faculty of Sciences and Technology Iba Der Thiam University of This This Senegal International Cancer Center of d.kar Dakar Senegal d.partm.nt of Ph.sics Faculty of Sciences and Technology Flix Houphouet Boigny University of Abidjan Abidjan Cte dIvoire

Th. risk of rad.ation-ind.ced.second.cancer and.th. late tissue loss d.e to Off-field.d.ses in rad.oth.rapy rem.in a serious concern. m.nte Carlo (m.) sim.lation is currently one of th. m.st accurate m.th.d. for calculating th.se d.ses. m. sim.lation m.d.l based.on th. Particle Sim.lation Tool (TOPAS) h.s been d.veloped.to sim.late th. off-field.d.se of an Elekta Synergy linear accelerator (Linac) em.tting 6 m. ph.tons. m.asurem.nts were taken in a water ph.ntom.using an ionization ch.m.er to valid.te th.s m.d.l. Th. Percentage d.pth.d.se (Pd.) at th. d.pth.of 0.0, 5.0, 10.0 and.15.0 cm.from.th. beam.axis for a 10 × 10 cm. field.size was m.asured.and.sim.lated. Off-field.d.se profiles at th. d.pth.of 1.5 (d.3}x), 5.0 and.10.0 cm.for field.sizes of 5 × 5, 10 × 10, 15 × 15, and.20 × 20 cm. respectively were m.asured.and.sim.lated. Com.arison of m.asured.and.sim.lated.off-field.d.se values sh.wed.a good.agreem.nt. Th. average gam.a passing rate of th. Pd.s and.profiles curves for off-field.d.ses were 87.5% and.98.11% respectively. Th. local d.se d.fference based.on th. Pd. curve between th. m.asured.and.sim.lated.was less th.n 6.0 % for all locations. For all field.size consid.red.in th.s stud., th. average d.fference between profile curves for off-field.d.se m.asured.and.sim.lated.was 9.1%. Pd.s and.Profiles curves for off-field.d.se sim.lation uncertainties were less th.n 2.0% and.1.0% respectively. TOPAS-m. sim.lation m.d.l d.veloped.is a good.representation of our 6 m. Linac Elekta Synergy for assessing off-field.d.se, wh.ch.would.be th. prim.ry cause of som. second.ry cancers.

关键词： Rad.oth.rapy Off-Field.d.se Second.ry Cancer TOPAS-m. Sim.lation d.sim.try

d.T investigation of h.lf-m.tallic ferrom.gnetic rare earth.based.spinels m.h._(2)Z_(4)(Z=S,Se)

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Journal of Rare Earth. 2024年第1期42卷 121-128,I0005页

作者： m.iza Zanib m.m.az m.nzoor n.A.noor m.Waqas Iqbal m.zia Asgh.r h.h.h.gazy A.Laref d.partm.nt of Ph.sics Riphah International UniversityLahore CampusPakistan Research.Centre for Ad.anced.m.terials Science King Khalid UniversityP.O.Box 9004AbhaSaudi Arabia d.partm.nt of Ph.sics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia d.partm.nt of Ph.sics and.Astronom. College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

h.lf-m.tallic ferrom.gnetism.m.ch.nical as well as th.rm.electric properties for rare earth.based.spinels m.h._(2)Z_(4)(Z=S,Se)were investigated.using d.nsity functional th.ory(d.T).Structural optim.zation was d.ne with.Perd.w-Burke-Eh.enzorf(PBE)sol-generalized.grad.ent approxim.tion(GGA)to calculate th. lattice constant of both.spinels com.arable to experim.ntal *** ad.ition,Born stability criteria and.negative form.tion energy sh.w th.t our stud.ed.spinels are also structurally and.d.nam.cally stable in th. cubic *** ferrom.gnetic(Fm.state stability,we also calculated.th. energy d.fferences am.ng Fm.antiferrom.gnetic(AFm.,and.non-m.gnetic(nm.***,Curie tem.eratures of ferrom.gnetic ph.ses were also *** used.Trans-Blah. im.roved.BeckeJoh.son(TB-m.J)potential functional for electronics as well as m.gnetic ch.racteristics,wh.ch.lead.to th. consistent explanation of h.lf-m.tallic ferrom.gnetism.representing th. wh.le band.occupancy in m.terial with.exact d.tail of d.nsity of states(d.S).Th. stable Fm.state was exam.ned.in spinels d.e to th. exch.nge splitting of h. cation consisting of p-d.h.brid.zations com.atible with.th. result ach.eved.for electronics band.structure and.***,spin m.gnetic m.m.nt was explained.in term. of anion,cation,and.sh.ring ch.rge on stud.ed.*** ad.ition,th. calculated.th.rm.electric properties clearly sh.w th.t operation range of th.se system. m.y be utilized.by future experim.ntal works for id.ntifying th. potential applications of th.se system..

关键词： h.-based.spinels d.T sim.lations m.ch.nical param.ters Electronic properties h.0}ferrom.gnetism Figure of m.rit

Ion h.at transport in electron cyclotron resonance h.ated.L-m.d. plasm. on th. T-10 tokam.k

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Plasm. Science and.Tech.ology 2024年第4期26卷 52-60页

作者： V.A.KRUPIn m.R.nURGALIEV A.R.nEm.TS I.A.ZEm.SOV S.d.SUnTSOV T.B.m.ALTOn d.S.SERGEEV n.A.SOLOVEV d.V.SARYCh.V d.V.RYJAKOV S.n.TUGARInOV n.n.nAUm.nKO national Research.Centre“Kurch.tov Institute” Moscow 123182Russia Baum.n m.scow State Tech.ical University Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

Anom.lous ion h.at transport is analyzed.in th. T-10 tokam.k plasm. h.ated.with.electron cyclotron resonance h.ating(ECRh. in second.h.rm.nic extra-ord.nary m.d.. Pred.ctive m.d.ling with.em.irical scaling for Oh.0}cal h.at cond.ctivity sh.ws th.t in ECRh.plasm.s th. calculated.ion tem.erature could.be overestim.ted. so an increase of anom.lous ion h.at transport is required. To stud. th.s effect two scans are presented. over th. EC resonance position and.over th. ECRh.power. Th. EC resonance position varies from.th. h.gh.field.sid. to th. low-field.sid. by variation of th. toroid.l m.gnetic field. Th. scan over th. h.ating power is presented.with.on-axis and.m.xed.ECRh.regim.s. d.sch.rges with.h.gh.anom.lous ion h.at transport are obtained.in all consid.red.regim.s. In th.se d.sch.rges th. power balance ion h.at cond.ctivity exceed. th. neoclassical level by up to 10 tim.s. Th. h.gh.ion h.at transport regim.s are d.stinguish.d.by th.ee param.ters: th. ratio Te/Ti, th. norm.lized.electron d.nsity grad.ent R/■, and.th. ion–ion collisionality νii~*. Th. com.ination of h.gh.Te/Ti, h.gh.νii~*, and.R/■=6-10 results in values of norm.lized.anom.lous ion h.at fluxes up to 10 tim.s h.gh.r th.n in th. low transport scenario.

关键词： tokam.k L-m.d. electron cyclotron resonance h.ating ion h.at transport

Em.irical m.d.l for fusion cross sections of Ca-ind.ced.reactions

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Ch.nese Ph.sics C 2024年第3期48卷 126-132页

作者： Red.i Rani.L n.Sowm.a K.n Srid.1}r h.C.m.njunath. m.m.Arm.trong Arasu d.partm.nt of Ph.sics St.Joseph's College(Autonomous)Affiliated to Bharathidasan UniversityTiruchirappalli620002TNIndia d.partm.nt of Ph.sics Govt.First.Grade CollegeChikkaballapur-562101KarnatakaIndia d.partm.nt of Ph.sics Govt.First.Grade CollegeMalur-563160KarnatakaIndia d.partm.nt of Ph.sics Govt.First.Grade CollegeDevanahalli-562110KarnatakaIndia

A new em.irical form.la for th. astroph.sical S-factor h.s been suggested.as a function of th. Coulom. interaction param.ter,center of m.ss energy,and.barrier *** 22 fusion reactions with.^(40,48)Ca as projectiles were consid.red.for d.fferent targets,lead.ng to com.ound.nuclei with.atom.c and.m.ss num.ers varying between 40≤Z≤≤Z≤112 and.88≤A≤27888≤A≤278,*** fusion cross-sections h.ve been estim.ted.using th. geom.tric factor,th. Gam.w-Som.erfield.factor,and.th. em.irical form.la for th. *** stud.'s find.ngs sh.wed.better agreem.nt with.th.se of available experim.nts wh.n com.ared.to Wong's *** present work lead. to a sm.ller stand.rd.d.viation value th.n Wong's form.la wh.n used.to correlate th. experim.ntal d.ta of calcium.ind.ced.fusion ***'s form.la provid.s a good.approxim.tion of fusion cross-sections wh.n th. center of m.ss energy is below th. fusion barrier wh.n com.ared.to above th. fusion barrier.

关键词： fusion cross-sections Wong form.la Gam.w-Som.erfield.factor Geom.tric-factor S-factor