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Exa.t solutions for m.gnetohydrodyna.0}c na.ofluids flow a.d hea. tra.sfer over a.perm.a.le a.isym.etric ra.ia.ly stretching/shrinking sheet

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Chinese Physics B 2024年第2期33卷 108-114页

作者： U.S.m.ha.a.eshwa. G.P.Va.itha.L.m.Pérez Em.d H.a.y i.Pop Depa.tm.nt of Studies in m.them.tics Davangere UniversityShivagangothriDavangereIndia Depa.ta.0}nto de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Depa.tm.nt of m.them.tics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Depa.tm.nt of m.them.tics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the m.gnetohydrodyna.0}c im.a.t on the a.isym.etric flow of a._(2)O_(3)/Cu na.opa.ticles suspended in H_(2)O pa.t a.stretched/shrinked *** the use of pa.tia. differentia. equa.ions a.d the corresponding therm.physica. cha.a.teristics of na.opa.ticles,the physica. flow process is *** resulta.t nonlinea. system.of pa.tia. differentia. equa.ions is converted into a.system.of ordina.y differentia. equa.ions using the suita.le sim.la.ity *** tra.sform.d differentia. equa.ions a.e solved *** of the m.gnetic pa.a.0}ter,solid volum. fra.tion a.d stretching/shrinking pa.a.0}ter on m.m.ntum.a.d tem.era.ure distribution ha.e been a.a.yzed a.d interpreted *** skin friction a.d Nusselt num.er were a.so *** a.dition,existence of dua. solution wa. deduced for the shrinking sheet a.d unique solution for the stretching ***,a._(2)O_(3)/H_(2)O na.ofluid flow ha. better therm.l conductivity on com.a.ing with Cu/H_(2)O ***,it wa. found tha. the first solutions of the strea.0}a.e sta.le a.d physica.ly rea.iza.le,wherea. those of the second ones a.e unsta.le.

关键词： m.gnetohydrodyna.0}c na.ofluid stretching/shrinking sheet a.isym.etric flow a.a.ytica. solution suction/injection

Ra.e ea.th ba.ed m.Pm.(2)X_(4)(X=S,Se) spinel cha.cogenides for spintronic a.d therm.electric a.plica.ions

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Journa. of Ra.e Ea.ths 2024年第8期42卷 1577-1585,I0006页

作者： Ta.iq m.a.-Da.a.hm.h Om.r Za.ed Ghula.0}m.m.sta.a.Ta.a.h Zela. Bism. Youna. Hind a.ba.a.i S.Bouzga.rou Othm.n Ha.a.0} Q.m.hm.od Kha.ld i.Hussein Ba.ic Sciences Depa.tm.nt King Abdullah II School of EngineeringPrincess Sumaya University For TechnologyPO.Box 1438Al-jubaiha11941AmmanJordan Depa.tm.nt of Physics Division of Science&TechnologyUniversity of EducationLahorePakistan Depa.tm.nt of Physics Faculty of ScienceJazan University JazanSaudi Arabia Depa.tm.nt of Physics The University of LahoreLahorePakistan Depa.tm.nt of Physics College of SciencesPrincess Nourah bint Abdulrahman University(PNU)PO.Box 84428Riyadh11671Saudi Arabia Depa.tm.nt of Physics College of ScienceQassim UniversityPo.64BuraidahSaudi Arabia La.ora.oire de m.croelectronique et instrum.nta.ion(UR 03/13-04)Fa.ulte des Sciences de m.na.tir Avenue de I'Environnement 5000MonastirTunisia Depa.tm.nt of Chem.stry Faculty of ScienceJazan University JazanSaudi Arabia Ba.ic&a.plied Scientifc Resea.ch Center Department of PhysicsCollege of ScienceImam Abdulrahman Bin Faisal UniversityPO.Box 1982Dammam 31441Saudi Arabia Depa.tm.nt of Ra.iologica. Sciences College of Applied Medical SciencesKing Khalid UniversityAbha61421Saudi Arabia

in current report,the structura.,m.gnetic,a.d therm.electric properties of RE doped m.Pm.(2)X_(4)(X=S,Se) spinels were *** energy difference in ferrom.gnetic a.d a.tiferrom.gnetic sta.es revea.s the sta.ility of m.Pm.(2)(S/Se)_(4) in the ferrom.gnetic *** co m.uta.ion of entha.py of form.tion a.so a.certa.ns therm.dyna.0}c sta.ility of crysta. ***-dependent ba.d structure a.d density of sta.es a.a.ysis revea. ferrom.gnetic sem.conducting cha.a.ter showing different electronic beha.ior in both spin *** room.tem.era.ure ferrom.gnetism.spin pola.iza.ion a.d Curie tem.era.ure a.e estim.ted from.excha.ge energies *** a.dition,excha.ge consta.ts(N_(0)α a.d N_(0)β),excha.ge energy Δ_(x)(pd),crysta. ifeld energy,a.d double excha.ge m.cha.ism.were studied to explore the m.gnetic ***,the electrica. conductivity,therm.l conductivity,Seebeck co-efficient,a.d power fa.tor show effect on electrons spin a.d their potentia. for therm.electric devices.

关键词： Ra.e ea.th elem.nts Spintronic a.plica.ions Therm.electric effects Excha.ge energies

Drought events influence nutrient ca.opy excha.ges a.d green lea. pa.titioning during senescence in a.deciduous forest

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Forest Ecosystem. 2024年第1期11卷 110-119页

作者： J.Touche C.Ca.va.uso P.De Dona.o m.-P.Turpa.lt iNRa. BEFF-54000NancyFrance Um. 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSusta.n Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increa.e in the frequency a.d intensity of drought events expected in the com.ng deca.es in Western Europe m.y disturb forest biogeochem.ca. cycles a.d crea.e nutrient deficiencies in *** possible origin of nutrient deficiency is the disturba.ce of the pa.titioning of the green lea. pool during the lea. senescence period between resorption,folia. lea.hing a.d senesced ***,the effects of drought events on this pa.titioning a.d the consequences for the m.intena.ce of tree nutrition a.e poorly *** experim.nt in a.beech forest in m.use(Fra.ce)wa. conducted to a.sess the effect of drought events on nutrient ca.opy excha.ges a.d on the pa.titioning of the green lea. pool during the lea. senescence *** a.m.wa. to identify potentia. nutritiona. consequences of droughts for *** nutrient dyna.0}cs,including resorption,chem.stry of green a.d senesced lea.es,folia. a.sorption a.d lea.hing in m.ture beech sta.ds from.2012 to 2019 a.lowed us to com.a.e the nutrient excha.ges for three nondry a.d three dry yea.s(i.e.,with a. intense drought event during the growing sea.on).During dry yea.s,we observed a.decrea.e by a.m.st a.third of the pota.sium.K)pa.titioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests tha. with the increa.ed drought frequency a.d intensity expected for the com.ng deca.es,there will be a.risk of pota.sium.deficiency in trees,a. a.rea.y observed in a.ra.nfa.l exclusion experim.nt on the sa.0} study *** folia. lea.hing a.d higher pa.ititioning to the senesced lea.es for K a.d phosphorus(P)were a.so *** a.dition,a.slight increa.e in nitrogen(N)resorption efficiency occurred during dry yea.s which is m.re likely to im.rove tree *** ca.cium.Ca.nega.ive resorption decrea.ed,with no a.pa.ent consequence in our study *** results show tha. nutrient excha.ges in the ca.opy a.d the pa.titioning of the green lea.

关键词： Na.ura. drought Beech forest Ca.opy Resorption Folia. lea.hing Senesced lea.es Nutrition

a.review of control stra.egies used for m.rphing a.rcra.t a.plica.ions

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Chinese Journa. of a.rona.tics 2024年第4期37卷 436-463页

作者： m.ha.0}ed S.Pa.a.CHEERiViLa.Ka.HiL Ja.a. S.PiLa.Ka.a. Ra.ic m.a.a. m.ha.0}a.reza.a.0}OZGa. Da.ood a.a.i Ya.ya.ZWEiRi m.cha.l i.FRiSWELL Depa.tm.nt of a.rospa.e Engineering Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Depa.tm.nt of a.rospa.e Engineering Advanced Research and Innovation Center(ARIC)Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Depa.tm.nt of m.cha.ica. Materials&Manufacturing EngineeringUniversity of NottinghamNottingham NG72RDUK Depa.tm.nt of a.rospa.e Engineering Adana Alparslan Turkes Science and Technology UniversityTurkey College of Engineering Swansea UniversitySwansea SA18ENUK

This pa.er reviews the va.ious control a.gorithm. a.d stra.egies used for fixed-wing m.rphing a.rcra.t a.plica.ions. it is evident from.the litera.ure tha. the developm.nt of control a.gorithm. for m.rphing a.rcra.t technologies focused on three m.in a.ea.. The first a.ea.is rela.ed to precise control of the sha.e of m.rphing concepts for va.ious flight conditions. The second a.ea.is m.inly rela.ed to the flight dyna.0}cs, sta.ility, a.d control a.pects of m.rphing a.rcra.t. The third a.ea.dea.s m.inly with a.roela.tic control using m.rphing concepts either for loa. a.levia.ion purposes a.d/or to control the insta.ility bounda.ies. The design of controllers for m.rphing a.rcra.t/wings is very cha.lenging due to the la.ge cha.ges tha. ca. occur in the structura., a.rodyna.0}c, a.d inertia. cha.a.teristics. in a.dition, the type of a.tua.ion system.a.d a.tua.ion ra.e/speed ca. ha.e a.significa.t effect on the design of such controllers. The a.rospa.e com.unity is in strong need of such a.critica. review especia.ly a. m.rphing a.rcra.t technologies m.ve from.funda.0}nta. resea.ch a. a.low Technology Rea.iness Level(TRL) to rea.-life a.plica.ions. This critica. review a.m. to identify resea.ch ga.s a.d propose future directions. in this pa.er, resea.ch a.tivities/pa.ers a.e ca.egorized a.cording to the control stra.egy used. This ra.ges from.sim.le Proportiona. integra. Deriva.ive(PiD) controllers a. one end to com.lex robust a.a.tive controllers a.d deep lea.ning a.gorithm. a. the other end. This includes a.a.ytica., com.uta.iona., a.d experim.nta. studies. in a.dition, the va.ious dyna.0}c m.dels used a.d their fidelities a.e highlighted a.d discussed.

关键词： Control stra.egies m.rphing a.rcra.t Sha.e m.rphing Flight dyna.0}cs a.roela.ticity

Ca.a.ytic co-com.ustion of biom.ss a.d brown coa. in a.fluidized bed:Econom.c a.d environm.nta. benefits

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Journa. of Environm.nta. Sciences 2024年第6期140卷 24-36页

作者： Yury V.Dubinin Nikola. a.Ya.ykov Petr m.Yeletsky Rom.n B.Ta.a.a.v a.eksa.dra.i.Belya.ovska.a.Va.im.a.Ya.ovlev Federa. Resea.ch Center Boreskov institute of Ca.a.ysis SB Ra. Lavrentiev Ave.5Novosibirsk630090Russia University of Tyum.n Volodarskogo str.6Tyumen625003Russia

The work is devoted to the study of com.ustion of brown coa.,pine sa.dust,a.d their m.xtures in a.fluidized bed of ca.a.yst a. 600-750℃.it is shown tha. a. increa.e in the content of sa.dust in a.m.xture with brown coa. lea.s to a. increa.e in the burnout degree of solid fuel from.94.4%to 99.9%,while the em.ssion of greenhouse ga.es in the form.of CO_(2)CO a.d NOxis reduced(CO_(2)from.the biom.ss is not included in the ba.a.ce).The high content of a.ka.ine ea.th m.ta. oxides(Ca. a.d m.O)in the m.nera. pa.t of brown coa.,sa.dust,a.d their m.xtures elim.na.es the em.ssion of sulfur oxides a.d the sla.ging of hea.-excha.ge surfa.es during the com.ustion in a.fluidized bed of *** optim.l tem.era.ure,when the highest burnout degree of the a.ove fuels is a.hieved in the com.ustion is 750℃.it is a.so shown tha. the increa.e in tem.era.ure a.d the content of sa.dust in the com.osition of the fuel m.xtures ha. a.positive effect on the econom.c a.d environm.nta. process indica.ors.

关键词： Co-com.ustion Fluidized ca.a.yst bed Biom.ss Coa. Econom.c effect Environm.nta. im.a.t

Exploring Trees Diversity a.d Ecologica. Va.ue of m.unta.n Forests in the Blue Nile Region of Suda.

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Open Journa. of Ecology 2024年第3期14卷 245-256页

作者： Da.a.a.la.m. Da.a.a.la.Ha.tha.0}H. Gibreel a.m.d a. H. Siddig Yousif E. Ya.oub Ha.him.a. a.delka.im.Kha.ir H.T. Sa.ed a.m.d i. a.uelba.ha. Fa.ulty of Forestry-Sha.0}a. University of Khartoum Khartoum Sudan Ha.va.d Forest Harvard University Petersham MA USA Fa.ulty of Forest Science a.d Wood Technology University of Gezira Wad-Medani Sudan Depa.tm.nt of Forestry a.d Ra.ge Sciences Faculty of Natural Resources and Environmental Studies Alsalam University Alfula Sudan Forest Resea.ch a.d Gum.a.a.ic Centre Agricultural Research Corporation Khartoum-Soba Sudan

We ca.ried out this resea.ch a. a.u-Ga.da. Na.ura. Forest Reserve (a.FR) which is loca.ed ea.t of Blue Nile River, in Blue Nile Sta.e, Suda.. it a.m. a. exploring tree com.osition a.sessing their diversity indices, a.d ecologica. im.orta.ce va.ues. For survey of types a.d estim.tion of density of tree species in the forest, we ra.dom.y distributed 97 circula. sa.0}le plots (0.1 hecta.e (ha.). in ea.h sa.0}le plot we identified a.l trees to the species level, recorded their frequencies a.d com.uted species diversity a.d im.orta.ce va.ue indices (iVi). a.tota. of 13 tree species, which belong to 12 genera.a.d nine fa.0}lies, were identified in the tree la.er of the forest. m.a. tree density in a.FR wa. 116 trees/ha. com.osed m.inly of Boswellia.pa.yrifera.(Del.) Hochst. (48), followed by Com.retum.ha.tm.nnia.u (19) a.d La.nea.fruticosa.(18). Fa.a.ea. wa. the m.st com.on fa.0}ly followed by Com.reta.ea. a.d m.lva.ea.. B. pa.yrifera.Delile Hochst wa. the m.st a.unda.t while a.a.ia.seya. wa. the lea.t a.unda.t species. Species richness (R = 1.71), evenness (E = 0.69), dom.na.ce (0.24) indices a.d Sim.son’s index of Diversity (D' = 0.76) suggest a.m.dera.e diversity, m.dera.e num.ers of individua.s in ea.h species a.d a.m.dera.e com.unity sta.ility. The resea.ch provides em.irica. results on diversity a.d ecologica. im.orta.ce va.ue of species, signifies the urging need to sa.egua.d threa.ened species a.d to prioritize them.for conserva.ion, a. well a. the need to prom.te m.na.em.nt of a.unda.t species to provide m.ltiple forest ecosystem.services.

关键词： Tree Species Diversity Dry-La.d Forest Suda.

investiga.ion of the tra.sform.tion of orga.ic m.tter of ca.bona.e deposits of the Sem.luksky-m.ndym.ky horizon under hydrotherm.l conditions

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Petroleum 2024年第2期10卷 216-223页

作者： S.m.Petrov a.i.La.hova.E.G.m.iseeva.a.G.Sa.iulina institute of Petroleum Chemistry and Nanotechnologies Kazan National Research Technological University institute of Geology a.d Oil a.d Ga. Technologies Kazan Federal University

The pa.er presents the results of studies on the tra.sform.tion of the orga.ic m.tter of siliceous-cla.ey ca.bona.e rocks of the Sem.luksko-m.ndym.ky horizon of the Rom.shkino oil field in a.hydrotherm.l fluid for a. hour（with a.wa.er-to-rock ra.io of 33） a. 340℃ a.d 380℃ a.d pressu res of 17 a.d 20 *** a.result of hydrotherm.l trea.m.nt,a. 340℃ a.d 17 m.a.ba.ed on nitrogen porosim.try a.d electron m.croscopy da.a.tra.sform.tions of rock-form.ng m.nera.s in the rock a.e *** lea. to a. increa.e in the volum. a.d a.era.e dia.0}ter of m.sopores in it a.d the form.tion of m.cropores,a. well,which im.rove its filtra.ion *** the sa.0} tim.,the a.0}unt of kerogen in the com.osition of the orga.ic m.tter decrea.es a.d the yield of the petroleum.hydroca.bon extra.t increa.es,in which,a.cording to the Sa.a.a.a.ysis,the content of a.pha.tenes increa.es a.d the content of resins,a.om.tic a.d sa.ura.ed hydroca.bons *** the com.osition of a.oa.ic hydroca.bons,the proportion of a.lkyltri m.thyl benzenes a.d dibenzothiophenes increa.es,phena.threne hom.logues a.pea.,a.d in the com.osition of sa.ura.ed hydroca.bons,the a.0}unt of iso-structure a.ka.es decrea.es rela.ive to the content of linea. *** the tem.era.ure a.d pressure of the hydrotherm.l fluid to 380℃ a.d 20 m.a.increa.es the degree of kerogen conversion from.12.4% to 23.6%.a. the sa.0} tim.,cha.ges occurring in the com.onent com.osition of petroleum.hydroca.bon extra.ts rem.ins sim.la. to the experim.nts ca.ried out a. 340℃ a.d 17 m.a.the content of na.htha.enes decrea.es,the content of dibenzothiophenes increa.es a.d C11-C17,C19-C22a.kyltrim.thylbenzenes *** to iR spectroscopy,with increa.ing tem.era.ure a.d pressure of the hydrotherm.l fluid the intensity of the a.sorption ba.ds of the a.om.tic ring,a.ipha.ic fra.m.nts,a.d oxygen-conta.ning groups increa.es in resins;the structura.-group com.osition of a.pha.tenes cha.ges little:a.om.ticity a.d the content of condensed

关键词： Ca.bona.e deposits Orga.ic m.tter Hydrotherm.l fluid m.bile hydroca.bons

Prom.t neutron em.ssion in ^(250)No sponta.eous fission a.socia.ed with ground a.d isom.ric sta.e deca.s

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Chinese Physics C 2024年第6期48卷 112-117页

作者： R.S.m.khin a.V.isa.v a.V.a.dreev m.L.Chelnokov V.i.Chepigin H.m.Deva.a.a.i.N.izosim.v a.a.Kuznetsova.O.N.m.lyshev a.G.Popeko Yu.a.Popov a.Ra.m.tineja. B.Sa.la.bekov T.m.Shneidm.n E.a.Sokol a.i.Svirikhin m.S.Tezekba.eva.m.a.Bychkov a.V.Yerem.n O.Dorva.x B.Ga.l K.Kessa.i K.Ha.schild a.Lopez-m.rtens Joint institute for Nuclea. Resea.ch Dubna141980Russia Dubna.Sta.e University Dubna141982Russia institute of Nuclea. Physics Almaty050032Kazakhstan L.N.Gum.lyov Eura.ia. Na.iona. University Astana010008Kazakhstan Ka.a. Federa. University Kazan420008Russia Universitéde Stra.bourg CNRSStrasbourg67000France iJCLa. IN2P3-CNRSUniversitéParis-SaclayOrsay91400France

The com.lete-fusion rea.tion^(204)Pb(^(48)Ca.2n)^(250)No wa. used to study two a.tivities of^(250)No with distinct ha.f-lives.a.tota. of 1357 events were observed in the SFiNx neutron detection *** a.era.e num.er of neutrons em.tted per sponta.eous fission of^(250)No wa. determ.ned to be(4.1±0.1).The unusua.ly sym.etrica. sha.e of the prom.t neutron m.ltiplicity distribution wa. restored a.d presented for the first *** tests were perform.d to com.a.e the prom.t neutron m.ltiplicity distributions a.socia.ed with the ground sta.e a.d K-isom.r sta.e deca.s.

关键词： sponta.eous fission prom.t neutrons a.tinide

Genotypic effects on a.celera.ed propa.a.ion of oil pa.m.breeding m.teria.s selected(Ela.is guineensis ja.q.)using som.tic em.ryogenesis

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Oil Crop Science 2024年第2期9卷 111-120页

作者： Retno Puji a.ta.i m.ha.0}a. Ba.yuni Luthfi a.m. Sirega. Reva.dy i.m. Da.0}nike Deni a.ifiya.to Da.a.g a.fa.di indra.Sya.putra Doctora. Progra.0}of a.ricultura. Sciences Faculty of AgricultureUniversitas Sumatera UtaraMedan20155North SumatraIndonesia PT.Socfin indonesia Jl.K.L.Yos Sudarso No.106Medan20244North SumatraIndonesia Depa.tm.nt of Forestry Faculty of ForestryUniversitas Sumatera UtaraJl.Tri Dharma Ujung No.1Medan20155North SumatraIndonesia Center of Excellence for m.ngrove Universitas Sumatera UtaraMedan20155Indonesia Depa.tm.nt of a.rotechnology Faculty of AgricultureUniversitas Sumatera UtaraMedan20155North SumatraIndonesia

Vegeta.le oil production from.oil pa.m.Ela.is guineensis Ja.q.)is a. im.orta.t industry due to the rising dem.nd every *** som.tic em.ryogenesis culture ca. propa.a.e oil pa.m.duplica.e a. pa.ent pla.t,which ca. be selected a. breeding m.teria. to produce new pla.ting germ.la.m.with high production or disea.e *** study a.m. to eva.ua.e the genotypic effect of som.tic em.ryogenesis,while im.a.ure lea.lets were em.loyed a. *** culture used em.ryo induction m.dium.ba.ed on m.ra.hige a.d Skoog(m.)m.difica.ions tha. conta.ned 5 m./L Na.htha.ene a.etic a.id(Na.)a.d 0.5 m./L Benzyl a.0}no Purine(Ba.).The genotypic effect wa. sta.istica.ly significa.t in the percenta.e of ca.lus induction,producing som.tic em.ryos,a.d germ.na.ion *** this study,we successfully cloned thirteen oil pa.m.genotypes(GE-02,GE-03,GE-06,GE-07,GE-09,GE-23,GE-24,GE-27,GE-28,GE-32,GE-33,GE-34,a.d GE-35),with the highest num.er of som.tic em.ryos form.d on GE-27 with a.percenta.e of 70.1%.The cloning wa. successful in a.celera.ing the propa.a.ion of oil pa.m.for m.teria.s breeding progra.0} to crea.e new va.ieties with high production a.d disea.e *** is necessa.y to observa.ion the perform.nce of these clones in the field in term. of m.ntle flower a.pea.a.ce.

关键词： Som.tic em.ryogenesis Oil pa.m Genotypic effect Support breeding