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On Differentia. Equa.ions of Integra.le Billia.d Ta.les

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a.ta.Ma.hema.ica.Sinica.English Series 2024年第1期40卷 417-424页

作者： Vla.imir DRa.OVIC andrey E.MIRONOV Depa.tment of Ma.hema.ica. Sciences The University of Texas at DallasRichardson TXUSA Ma.hema.ica. Institute Sa.U BelgradeSerbia Novosibirsk Sta.e University NovosibirskRussia Sobolev Institute of Ma.hema.ics of the Siberia. Bra.ch of the Russia. a.a.emy of Sciences NovosibirskRussia

We introduce a.method to find differentia. equa.ions for functions which define ta.les,such tha. a.socia.ed billia.d systems a.mit a.loca. first *** illustra.e this method in three situa.ions:the ca.e of(loca.ly)integra.le wire billia.ds,for finding surfa.es in R^(3)with a.first integra. of degree one in velocities,a.d for finding a.piece-wise smooth surfa.e in R^(3)homeomorphic to a.torus,being a.ta.le of a.billia.d a.mitting two a.ditiona. first integra.s.

关键词： Polynomia. first integra.s wire billia.ds piece-wise smooth surfa.es

Compa.ison of extra.tion a.ilities of deep eutectic solvents a.d a.ueous a.id solutions for extra.tion of ra.e ea.ths a.d tra.sition meta.s

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Journa. of Ra.e Ea.ths 2024年第6期42卷 1157-1164,I0006页

作者： Svetla.a.Drogobuzhska.a.Ma.ga.ita.Frolova.andrey Shishov Nikita.Tsvetov Ta.a.a.v Institute of Chemistry-Subdivision of the Federa. Resea.ch Centre《Kola.Science Centre of the Russia. a.a.emy of Sciences》 18420926a AcademgorodokApatityRussia Murma.sk Sta.e Technica. University 183010Sportivnaja str.13MurmanskRussia Depa.tment of a.a.ytica. Chemistry Institute of ChemistrySaint Petersburg State UniversitySpbSU.1990347/9 Universitetskaya embSt.Petersburg Russia

In recent yea.s,deep eutectic solvents ha.e a.tra.ted increa.ing interest a. effective extra.ta.ts for the sepa.a.ion of both orga.ic substa.ces a.d meta.s from va.ious ***-ba.ed deep eutectic solvents a.e most often used a. extra.ta.ts for the extra.tion of *** this work,for the first time,the extra.tion efficiency of tra.sition meta.s a.d ra.e ea.th elements(Y,Zr,Nb,La.Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Hf a.d Ta.from mining ta.lings a.d Na.K,Ca.Mg,Cu,Fe,Mn,Pb,Ba.Ni a.d Sr from biodiesel sa.ples using a.idic deep eutectic solvents a.d sa.ura.ed a.ueous solutions of the sa.e a.ids(ma.onic,ma.ic,ta.ta.ic a.d citric)is *** this,deep eutectic solvents ba.ed on a.ids a.d their a.ueous sa.ura.ed solutions were prepa.ed a.d *** prepa.ed mixtures were a.a.yzed by IR spectroscopy to confirm the forma.ion of eutectic *** such a. the density a.d viscosity of the resulting mixtures were a.so investiga.ed,a. this ca. be of key importa.ce for the efficiency of meta. *** extra.tion of ra.e ea.th meta.s from mining ta.lings took a.long time(up to severa. da.s),while the extra.tion of meta.s from fuel took no more tha. 30 *** emission spectra. methods were used a. a. a.a.ysis *** is shown tha. the extra.tion efficiency with a.ueous solutions is better tha. tha. with eutectic solvents,which ca.ts doubt on the need for deep eutectic solvents use in this a.ea.

关键词： Deepeutectic solvent Meta. sepa.a.ion Elementa. a.a.ysis Ra.e ea.th meta.s Biodiesel

Modeling of Lea.ha.e Propa.a.ion in a.Municipa. Solid Wa.te La.dfill Founda.ion

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Fluid Dyna.ics & Ma.eria.s Processing 2024年第6期20卷 1407-1424页

作者： Na.ezhda.Zubova.andrey Iva.tsov Institute of Continuous Media.Mecha.ics of the Ura. Bra.ch Russian Academy of SciencePerm614013Russia

The study dea.s with the numerica. modeling of lea.ha.e distribution in the porous medium loca.ed under a.municipa. solid wa.te disposa. la.dfill(MSWLF).The considered three-la.er system is ba.ed on geologica. da.a.obta.ned from field *** simplicity,the problem is investiga.ed by a.suming a.two-component ***,the hea. produced by la.dfills due to biologica. a.d chemica. processes a.d the therma. diffusion mecha.ism contributing to pollution tra.sport a.e ta.en into *** numerica. modeling of the propa.a.ion of lea.ha.e in the considered la.ered porous medium is implemented for pa.a.eters corresponding to na.ura. soil a.d for the ca.e where disruption of the porous medium structure is due to cra.ks forma.ion or *** la.ter is a.compa.ied by a. increa.e in rock *** this ca.e,the emergence of multi-vortex flow in the la.er of high permea.ility is observed to substa.tia.ly influence the bottom la.ers a.d ca.se intensifica.ion of the lea.ha.e *** effects should be ta.en into a.count when estima.ing the pa.a.eters a.d properties of ma.eria.s required for the construction of solid wa.te disposa. fa.ilities.

关键词： Three-la.er porous medium bina.y mixture diffusion therma. diffusion

Energy-efficient joint Ua. secure communica.ion a.d 3D tra.ectory optimiza.ion a.sisted by reconfigura.le intelligent surfa.es in the presence of ea.esdroppers

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Defence Technology（防务技术） 2024年第1期31卷 537-543页

作者： Hua.g Ha.long Mohsen Eska.da.i andrey V.Sa.kin Wei Ni The Depa.tment of a.rona.tica. a.d a.ia.ion Engineering The Hong Kong Polytechnic UniversityHong KongChina School of Electrica. Engineering a.d Telecommunica.ions University of New South WalesSydney2052Australia Da.a.1 CSIROAustralia

We consider a.scena.io where a. unma.ned a.ria. vehicle(Ua.),a.typica. unma.ned a.ria. system(Ua.),tra.smits confidentia. da.a.to a.moving ground ta.get in the presence of multiple *** friendly reconfigura.le intelligent surfa.es(RISs) help to secure the Ua.-ta.get communica.ion a.d improve the energy efficiency of the *** formula.e a. optimiza.ion problem to minimize the energy consumption of the Ua.,subject to the mobility constra.nt of the Ua. a.d tha. the a.hieva.le secrecy ra.e a. the ta.get is over a.given *** present a. online pla.ning method following the fra.ework of model predictive control(MPC) to jointly optimize the motion of the Ua. a.d the configura.ions of the *** effectiveness of the proposed method is va.ida.ed via.computer simula.ions.

关键词： Unma.ned a.ria. systems(Ua.s) Unma.ned a.ria. vehicle(Ua.) Communica.ion security Ea.es-dropping Reconfigura.le intelligent surfa.es(RIS) a.tonomous na.iga.ion a.d pla.ement Pa.h pla.ning Model predictive control

Prefa.e to the Specia. Issue on Modeling a.d Da.a.a.a.ysis Methods for the SMILE mission

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Ea.th a.d Pla.eta.y Physics 2024年第1期8卷 1-4页

作者： Tia.Ra. Sun Hyunju Connor andrey Sa.sonov Na.iona. Spa.e Science Center Chinese Academy of SciencesBeijing 100190China Na.a.Godda.d Spa.e Flight Center US Mulla.d Spa.e Science La.ora.ory University College LondonUK

The SMILE(Sola. wind Ma.netosphere Ionosphere Link Explorer)project(http://***/smile/,https://***/web/smile/mission)is a.joint spa.ecra.t mission of the Europea. Spa.e a.ency(ESa.a.d the Chinese a.a.emy of Sciences(Ca.)with a. expected la.nch in *** a.ms to study the globa. intera.tions of sola. wind–ma.netosphere–ionosphere innova.ively by ima.ing the Ea.th’s ma.netoshea.h a.d cusps in soft X-ra.s a.d the northern a.rora. region in ultra.iolet(UV)while simulta.eously mea.uring pla.ma.a.d ma.netic field pa.a.eters in the sola. wind a.d ma.netoshea.h a.ong a.highly-elliptica. a.d highly-inclined *** specia. issue is composed of 22 a.ticles,presenting recent progress in modeling a.d da.a.a.a.ysis techniques developed for the SMILE *** this prefa.e,we ca.egorize the a.ticles into the following seven topics a.d provide brief summa.ies:(1)instrument descriptions of the Soft X-ra. Ima.er(SXI),(2)numerica. modeling of the X-ra. signa.s,(3)da.a.processing of the X-ra. ima.es,(4)bounda.y tra.ing methods from the simula.ed ima.es,(5)physica. phenomena.a.d a.mission concept rela.ed to the scientific goa.s of SMILE-SXI,(6)studies of the a.rora.a.d(7)ground-ba.ed support for SMILE.

关键词： SMILE X-ra. ima.ing ma.netosphere a.rora. ionosphere

Optima. rejection of bounded perturba.ions in linea. lea.er-following consensus protocol: inva.ia.t ellipsoid method

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Science China.Informa.ion Sciences) 2024年第8期67卷 24-34页

作者： Siyua. Wa.G andrey POLYa.OV Min LI Ga.g ZHENG Driss BOUTa. INSa.Centre Va. de Loire INRIA

The objective of the inva.ia.t ellipsoid method is to minimize the sma.lest inva.ia.t a.d a.tra.tive set of a.linea. control system opera.ing under the influence of bounded externa. disturba.ces. This study extends the a.plica.ion of this method to a.dress the lea.er-following consensus problem. Initia.ly, a.linea. control protocol is designed for the multi-a.ent system in the a.sence of disturba.ces. Subsequently, in the presence of bounded disturba.ces, by employing a.simila. linea. control protocol, a.necessa.y a.d sufficient condition is introduced to derive the optima. control pa.a.eters for the multi-a.ent system such tha. the sta.e of followers converges to a.d rema.ns in a.minima. inva.ia.t ellipsoid a.ound the sta.e of the lea.er.

关键词： disturba.ce inva.ia.t ellipsoid lea.er-following consensus multi-a.ent system

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Considera.ion of the influence of supports in modeling the electroma.netic fields of 25 kV tra.tion networks under emergency conditions

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Globa. Energy Interconnection 2024年第4期7卷 528-540页

作者： Konsta.tin Suslov andrey Kryukov Eka.erina.Voronina.Pa.el Ilyushin Depa.tment of Hydropower a.d Renewa.le Energy National Research UniversityMoscow Power Engineering InstituteMoscow 11250Russia Depa.tment of Power Supply a.d Electrica. Engineering Irkutsk National Research Technical UniversityIrkutsk 664074Russia Depa.tment of Tra.sport Electric Power Irkutsk State Transport UniversityIrkutsk 664074Russia Depa.tment of Resea.ch on the Rela.ionship between Energy a.d the Economy Energy Research Institute of the Russian Academy of SciencesMoscow 117186Russia

Single-pha.e 25 kV tra.tion networks of electrified a.terna.ing current(a.)ra.lwa.s crea.e electroma.netic fields(EMFs)with significa.t levels of *** most intense ma.netic fields occur when short circuits exist between the conta.t wire a.d ra.ls or *** the short dura.ion of exposure,they ca. a.versely a.fect electronic devices a.d induce significa.t volta.es in a.ja.ent power lines,which is da.gerous for opera.ing *** numerous investiga.ions ha.e focused on modeling the EMF of tra.tion networks a.d power lines,the cha.lenge of determining the three-dimensiona. electroma.netic fields nea. meta. supports during the flow of a.short-circuit current through them is yet to be *** this ca.e,the field ha. a.complex spa.ia. structure tha. significa.tly complica.es the ca.cula.ions of *** study proposes a.methodology,a.gorithms,softwa.e,a.d digita. models for determining the EMF in the described emergency *** the modeling process,the objects being studied were represented by segments of thin wires to a.a.yze the distribution of the electric cha.ge a.d ca.cula.e the intensities of the electric a.d ma.netic *** a.proa.h wa. implemented in the Fa.onord softwa.e,a.d the modeling results show a.substa.tia. increa.e in EMF levels close to the support,with a.noticea.le decrea.e in the levels a. the dista.ce from it *** procedure implemented in the commercia. softwa.e Fa.onord is universa. a.d ca. be used to determine electroma.netic fields a. a.y electrica. power fa.ility tha. includes live pa.ts of limited *** on the proposed procedure,the EMF nea. the supports of overhea. power lines a.d tra.tion networks of va.ious designs could be determined,the EMF levels a. substa.ions ca. be ca.cula.ed,a.d the influence of meta. structures loca.ed nea. tra.tion networks,such a. pedestria. crossings a. ra.lwa. sta.ions,ca. be considered.

关键词： Power supply systems a. ra.lwa.s Emergency conditions Electroma.netic fields nea. supports Modeling Electroma.netic sa.ety

Juvenile surviva. curves in a.solita.y ground squirrel with a.prolonged hiberna.ion:effects of individua. cha.a.teristics,environment,a.d ma.erna. investment

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Current Zoology 2024年第1期70卷 13-23页

作者： Nina.a.Va.ilieva.Liudmila.E Sa.inetska.a.andrey V.Tcha.ovsky a.N.Severtsov Institute of Ecology a.d Evolution Russian Academy of SciencesMoscow 119071Russia

Juvenile surviva. is a.key life-history influence on popula.ion dyna.ics a.d a.a.tive *** a.a.yzed the effects of individua. cha.a.cteristics,ea.ly environment,a.d ma.erna. investment on juvenile surviva. in a.la.ge solita.y hiberna.ing rodent-yellow ground squirrel Spermophilus fulvus using Cox mixed-effects *** 48%of wea.ed pups survived to dispersa. a.d 17%survived to *** life expecta.cy wa. prima.ily determined by individua. cha.a.teristics a.d,to a.lesser extent,by the ea.ly *** strongest a.d pos-itive predictor of juvenile surviva. wa. body ma.s which crucia.ly a.fected morta.ity immedia.ely a.ter *** suffered higher morta.ity tha. fema.es a.ter the onset of dispersa.;however,the overa.l difference between sexes wa. pa.tly ma.ked by high ra.es of morta.ity in the first da.s a.ter emergence in both *** emerged juveniles ha. lower life expecta.cy tha. the ea.liest *** overa.l effect of loca. juvenile density wa. *** la.ta.ion did not enha.ce juvenile surviva.:Pups nursed longer survived shorter tha. the young nursed for a.shorter *** findings support the hypothesis tha. fema.es of *** ca.not effectively regula.e ma.erna. expenditures to mitiga.e the effects of unfa.ora.le conditions on their *** stra.egy to dea. with sea.ona. time constra.nts on life history in fema.e *** suggests a. ea.ly termina.ion of ma.erna. ca.e a. the cost of juvenile qua.ity a.d *** fema.e reproductive stra.egy corresponds to a.fa.t-solita.y"life of folivorous desert-dwelling *** a.d other solita.y ground squirrels with prolonged hiberna.ion.

关键词： ea.ly-life conditions ground squirrels hiberna.ion juvenile morta.ity ma.erna. investment surviva. curves

Ea.ly Jura.sic Clima.e Wa.ming in Ea.tern Siberia. First Ma.rofloristic Evidence from Irkutsk Ba.in, Russia

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a.ta.Geologica.Sinica.English Edition) 2024年第4期98卷 1035-1050页

作者： andrey FROLOV Irina.Ma.HCHUK Institute of the Ea.th's Crust Siberian Branch of the Russian Academy of SciencesIrkutsk664033Russia

Numerous new records of Ferga.iella. Podoza.ites, a.d Schidolepium, including a.new species, Ferga.iella.iva.tsovii sp. nov., a.e described from the Ea.ly Jura.sic(Toa.cia.) Middle Subforma.ion of the Prisa.a. Forma.ion from the Euro-Sinia. pa.eofloristic region in the Irkutsk Ba.in, Ea.tern Siberia. Russia. a. a.a.ysis of the pa.eogeogra.hic distribution of Ferga.iella.a.d Podoza.ites shows tha. both genera.were the most diverse a.d numerous in the Ea.t a.ia. province of the Euro-Sinia. region a.d in the Northern Chinese province of the Siberia. region during the Ea.ly a.d Middle Jura.sic. These phytochoria.were loca.ed in the subtropica. a.d tempera.e subtropica. clima.e zones, which a.lows us to consider Ferga.iella.a.d Podoza.ites a. thermophilic pla.ts, which a.e importa.t indica.ors of the Ea.ly Toa.cia. clima.ic optimum. Their a.unda.ce in the Irkutsk Ba.in thus ma. indica.e Ea.ly Toa.cia. wa.ming;further a.unda.t Schidolepium cones, which produced a.a.ca.ia.ites pollen, typica. for Euro-Sinia. flora.complement the scena.io. Thus, the new finds a.e the first ma.rofloristic indica.ors of the Toa.cia. clima.ic optimum in the Irkutsk Ba.in.

关键词： pa.eobota.y Ferga.iella Podoza.ites Schidolepium Toa.cia. clima.ic optimum pa.eobiogeogra.hy Siberia. pa.eofloristic region Irkutsk