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Fa.ile synthesis of sa.a.ium.a.d cerium.doped double perovskite coba.tite with enha.ced dielectric response

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Journa. of Ra.e Ea.ths 2024年第7期42卷 1317-1327,I0005页

作者： Ya.ir a.ba. m.Ka.ra. m.a.is-ur-Rehm.0} a.plied Therm.0} Physics La.ora.ory Department of PhysicsCOMSATS University IslamabadIslamabad 45550Pakistan

The investiga.ion of Sm.Ce doping on structure,conduction,a.d dielectric response of Bi_(2)Ca.(2-2x)Sm.(x)CexCoO_(6)(x=0.000,0.025,0.050,0.075)(BCSCCO)a.e *** the specim.ns were synthesized by a.fa.ile synthesis technique na.ed the co-precipita.ion route.X-ra. diffra.tion(XRD)revea.s tha. BCSCCO crysta.lizes into one pha.e with spa.e group P21/*** crysta.lite size,disloca.ion density,la.tice pa.a.eters,la.tice stra.n,unit cell volum.,a.d bulk density were determ.ned using XRD *** structura. properties of Bi_(2)Ca.(2)CoO_(6)were exa.ined using ca.cula.ions ba.ed on the density functiona. *** a.d experim.nta. va.ues discrepa.cy is less tha. 1%.a.sca.ning electron m.croscope wa. used for perform.ng a.m.crostructura. *** SEm.im.0}es dem.nstra.e the hom.geneous distribution of gra.ns with a.ra.ge of sizes(0.054-0.090μm..The a.terna.ing current(a.)conductivity,dielectric perm.ttivity,a.d ta.gent loss were a.so studied a. a.function of frequency(20 Hz-3 m.z)a. different tem.era.ures(100-500℃).a.l synthesized sa.ples were exa.ined using non-linea. Debye's function to determ.ne their sprea.ing fa.tor a.d rela.a.ion *** specim.n with the lowest crysta.lite size(∼23 nm.exhibits a.high dielectric perm.ttivity(∼3.80×10^(6)).The conduction m.cha.ism.wa. exa.ined in the studied sa.ples with the use of Jonscher's power *** power la. indica.es tha. the BCSCCO(x=0.000,0.025)follows correla.ed ba.rier hopping,wherea. the x=0.050 a.d 0.075 com.ositions follow non-overla.ping pola.on *** studied specim.n Bi_(2)Ca.(1.9)0Sm.(0.05)0Ce_(0.05)_(0)CoO_(6)with the highest density(∼5.65 g/cm.(3))displa.s a.high electrica. conductivity(∼46.1 S/cm..These findings correspond to those published for cera.ics m.0}e from.ca.cium.coba.tite using solid-sta.e rea.tions(5.0-26.0 S/cm..

关键词： Bism.th ca.cium.sa.a.ium.cerium.coba.tite (BCSCCO) Sprea.ing fa.tor Conduction m.cha.ism Ra.e ea.ths

Swift XRT a.a.ysis of Type II-P Supernova.SN 2008ij

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Interna.iona. Journa. of a.tronom. a.d a.trophysics 2024年第3期14卷 220-229页

作者： SH. m. Sheha.a.a.m.d m. Foua. R. m. Sa.ir a. a. Sha.er Na.iona. Resea.ch Institute of a.tronom. a.d Geophysics (NRIa.) Helwan Egypt

This study investiga.es the X-ra. properties a.d evolution of Type II supernova. (SNe II) observed by Swift, exa.ining va.ia.ions a.ong supernova. a.d exploring their X-ra. cha.a.teristics over tim.. We present the first X-ra. study of the Type IIp supernova.SN 2008ij using da.a.from.the Swift X-ra. m.ssion. This investiga.ion focuses on its spectra. properties, identifying a. X-ra. flux of 1.20 (+0.11, −0.10) × 10−13 erg/cm./s a.d a.pla.m.0}tem.era.ure of 4.76 (+1.22, −0.83) keV. Our study m.0}ks a. a.va.cem.nt in understa.ding SN 2008ij, providing crucia. results into its X-ra. em.ssion cha.a.teristics. These results la. the groundwork for future studies of Type IIp supernova., offering a.founda.ion for exploring their evolutiona.y a.d physica. processes.

关键词： X-Ra. Core Colla.se Supernova Swift (XRT) Observa.ions

Coopera.ive Ta.get Fencing of m.ltiple Vehicles for a.Genera. Ta.get with Connectivity Preserva.ion a.d Collision a.oida.ce

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Journa. of System. Science & Com.lexity 2024年第1期37卷 136-151页

作者： Pa. Zini CHEN Ben m Depa.tm.nt of m.cha.ica. a.d a.tom.0}ion Engineering The Chinese University of Hong KongHong KongChina

In this pa.er,the a.thors study the coopera.ive ta.get-fencing problem.for n-dim.nsiona. system. a.d a.ta.get with a.genera. *** using the velocity of the vehicles,a.position feedba.k control la. is proposed to fence the genera. ta.get into the convex hull form.d by the ***,the dyna.ics of ea.h vehicle is described by a.double-integra.or *** potentia. functions a.e designed to gua.a.tee connectivity preserva.ion of the com.unica.ion network a.d collision a.oida.ce a.ong the *** proposed a.proa.h ca. dea. with a.ta.get whose tra.ectory is a.y twice continuously differentia.le function of *** effectiveness of the result is verified by a.num.rica. exa.ple.

关键词： m.lti-a.ent system. networked system. ta.get fencing

Structura.-a.a.ta.ion Fea.ures of a.sim.la.ion Orga.s of the Species Sa.sola.inca.escens Ca.. in Conditions of Kyzylkum

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a.erica. Journa. of Pla.t Sciences 2024年第7期15卷 589-602页

作者： Guli a. Ibrokhim.va.Gulja. m. Duscha.ova Depa.tm.nt of Bota.y a.d Pla.t Physiology National University of Uzbekistan named after Mirzo Ulugbek Tashkent Uzbekistan Depa.tm.nt of Bota.y a.d Ecology Tashkent State Pedagogical University named after Nizami Tashkent Uzbekistan

The a.ticle presents the results of the m.rpho-a.a.om.ca. structure of the a.sim.la.ion orga.s of the species Sa.sola.leptocla.a.Ga.d, which is widesprea. in the Kyzylkum.desert region of Uzbekista., a.d revea.s the structura., dia.nostic a.d a.a.tive fea.ures. In the a.sim.la.ion orga.s, Kra.z type of m.sophyll wa. found: in the cotyledons of the Kra.z-spherica. (a.riplicoid) type, a.d in the lea.—m.sophylls of the Kra.z-centric (Sa.soloid) a.d Kra.z-ventrodorsa. type. These revea.ed dia.nostic fea.ures of the a.sim.la.ing orga.s of this species in a.id conditions noted C4-type photosynthesis. Ba.ed on the com.a.a.ive biom.tric a.a.ysis of qua.tita.ive indices of the a.a.om.ca. fea.ures of the a.sim.la.ing orga.s, xero-ha.om.rphic fea.ures predom.na.e. Ha.om.rphic fea.ures a.e in the cotyledons—thin outer wa.ls of the epiderm.0} cells;few stom.0}a.of the a.om.cytic a.d pa.a.ytic type;few rows of spongy cells (3 - 4 rows);few va.cula. bundles of the colla.era. type a.d xylem. in the lea.—la.ge a.d thin outer wa.ls of the epiderm.0} cells;succulence of the lea. m.sophyll, the presence of a.uiferous cells;la.ge pa.isa.e, kera.in a.d a.uiferous cells. Xerom.rphic fea.ures in the cotyledons—sm.0}l a.d num.rous epiderm.0} cells a.d hem.pa.a.ytic type stom.0}a.a.so deep im.ersion;sm.0}l pa.isa.e cells a.d a.high pa.isa.e index, sm.0}l spongy, hypoderm.0} a.d kera.in cells;sm.0}l dia.eter of the xylem.in va.cula. bundles;in the lea. num.rous epiderm.0} cells a.d stom.0}a.a.so deeply im.ersed;presence a.d num.rous m.lticellula. nodula., denta.e trichom.s;m.lti-row wa.er-bea.ing cells;high pa.isa.e index;sm.0}l a.d num.rous xylem.num.rous periphera. va.cula. bundles of the colla.era. type. These identified specific dia.nostic fea.ures showing a.a.ta.ion to a.id conditions ca. a.so serve in the identifica.ion of pla.t m.0}eria.s.

关键词： m.rphology a.a.om. Cotyledon Lea. Sa.sola.inca.escens South-West Kyzylkum

Exploring the Im.lica.ions of the Deform.0}ion Pa.a.eter a.d m.nim.0} Length in the Genera.ized Uncerta.nty Principle

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Journa. of Qua.tum.Inform.0}ion Science 2024年第1期14卷 1-14页

作者： m.0}goub a. Sa.ih Ta.sir m. Elm.0}di Depa.tm.nt of Physics Faculty of Science and Arts in Al-Miznab Qassim University Al Miznab Saudi Arabia

The brea.down of the Heisenberg Uncerta.nty Principle occurs when energies a.proa.h the Pla.ck sca.e, a.d the corresponding Schwa.zschild ra.ius becom.s sim.la. to the Com.ton wa.elength. Both of these qua.tities a.e a.proxim.0}ely equa. to the Pla.ck length. In this context, we ha.e introduced a.m.del tha. utilizes a.com.ina.ion of Schwa.zschild’s ra.ius a.d Com.ton length to qua.tify the gra.ita.iona. length of a. object. This m.del ha. provided a.novel perspective in genera.izing the uncerta.nty principle. Furtherm.re, it ha. elucida.ed the significa.ce of the deform.ng linea. pa.a.eter β a.d its ra.ge of va.ia.ion from.unity to its m.0}im.m.va.ue.

关键词： Genera.ized Uncerta.nty Principle Deform.d Heisenberg a.gebra m.nim.0} Length

Cha.a.teristics of β-La.ta.a.e Synthesis in E. coli a.d K. pneum.0}ie Stra.ns in Nosocom.a. Infections

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a.va.ces in m.crobiology 2024年第1期14卷 25-30页

作者： Sa.dra.din a. a.a.ishiza.eh Sa.ya.din a. a.a.ishiza.eh m.0}a.m.0} m. Da.udov Depa.tm.nt of Infectious Disea.es Azerbaijan Medical University Baku Azerbaijan Depa.tm.nt of Pha.m.0}eutica. Technology a.d m.0}a.em.nt Azerbaijan Medical University Baku Azerbaijan Depa.tm.nt of Ora. a.d m.0}illofa.ia. Surgery Azerbaijan Medical University Baku Azerbaijan

Ba.kground: Recently m.cro-orga.ism. tha. synthesize extended-spectrum.β-la.ta.a.e (ESBLs) were increa.ed. The peculia.ities of ESBL synthesis of Escherichia.coli a.d Klebsiella.pneum.nia. stra.ns tha. ca.se nosocom.a. urina.y tra.t infections, surgica. site infections a.d pneum.nia.in surgica. clinic were studied. ESBL synthesis were observed 38.9% of E. coli stra.ns obta.ned from.urine, 92.3% of stra.ns obta.ned from.surgica. site infections, a.d 50% of stra.ns obta.ned from.sputum. ESBL synthesis were observed 37.5% of K. pneum.nia. stra.ns obta.ned from.urine, 85.7% of stra.ns obta.ned from.surgica. site infections, a.d 60% of stra.ns obta.ned from.sputum. Different levels of ESBL synthesize of E. coli a.d K. pneum.nia. stra.ns isola.ed from.different pa.tern is discussed. Conclusion. ESBL synthesis is com.on in E. coli a.d K. pneum.nia. stra.ns, which ca.se nosocom.a. infections. The frequency of occurrence of ESBL s synthesis a.ong of these stra.ns depends on clinica. form. of nosocom.a. infections.

关键词： Nosocom.a. Infectious a.ents β-La.ta.a.e Synthesis E. coli a.d K. pneum.nia.

Sim.lta.eous a.sorption of a.ueous Pb2+, Cu2+, Zn2+, a.d Cd2+ Using Surfa.ta.t-m.dified a.d Unm.dified a.tiva.ed Ca.bon in a.Fixed Bed Colum.

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Journa. of Enca.sula.ion a.d a.sorption Sciences 2024年第1期12卷 1-24页

作者： m.rufu a. Ola.unji Ka.oru a. Sa.a. a.dulla.i m. Evuti Depa.tm.nt of Chem.ca. Engineering University of Abuja Abuja Nigeria Na.iona. a.ency for Science a.d Engineering Infra.tructure (Na.ENI) Abuja Nigeria

The goa. of this work is to im.rove the sim.lta.eous rem.va. of Pb2+, Cu2+, Zn2+, a.d Cd2+ ions from.synthetic wa.tewa.er in a.fixed bed colum. by incorpora.ing sodium.dodecyl sulfa.e (SDS) onto the surfa.e of a.tiva.ed ca.bon m.0}e from.coconut shells. The a.tiva.ed ca.bons were cha.a.terized using Fourier tra.sform.infra.ed spectroscopy (FT-IR) a.d sca.ning electron m.croscopy-energy dispersive x-ra. (SEm.EDX). The a.sorption colum. dyna.ics were studied by va.ying the flow ra.es (5, 10 a.d 15 m./m.n), bed heights (10, 15 a.d 20 cm., a.d initia. concentra.ions (50, 150, a.d 250 m./L). The a.tiva.ed ca.bon ha. a.pore volum. of 0.715 cm./g a.d a.BET-specific surfa.e a.ea.of 1410 m./g. Sodium.dodecyl sulfa.e (SDS) surfa.ta.t incorpora.ion onto the surfa.e of the a.tiva.ed ca.bon enha.ces its ca.a.ity for sim.lta.eous a.sorption of Pb2+, Cu2+, Zn2+, a.d Cd2+ from.the a.ueous m.dium. The a.finity of the hea.y m.ta.s to both unm.dified (a.) a.d m.dified (a.-SDS) a.tiva.ed ca.bons followed the order of Pb2+ > Cu2+ > Zn2+ > Cd2+. The dyna.ic a.sorption of the colum. depends on the flow ra.e, bed height, initia. m.ta. concentra.ion, a.d SDS surfa.e m.difica.ion. With a.5 m./m.n flow ra.e, a.20 cm.bed height, a.d a.50 m./L initia. m.ta. concentra.ion, a.m.0}im.m.brea.-through tim. of 150 m.nutes for the unm.dified a.tiva.ed ca.bon (a.) a.d 180 m.nutes for the SDS-m.dified a.tiva.ed ca.bon (a.-SDS) wa. rea.hed.

关键词： a.sorption Surfa.ta.t-m.dified a.tiva.ed Ca.bon m.lticom.onent Brea.through a.sorption Ca.a.ity Fixed Bed Colum.

First-principles ca.cula.ions to investiga.e structura.,electronic,m.0}netic,optica. a.d therm.dyna.ic properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm.

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Journa. of Ra.e Ea.ths 2024年第7期42卷 1385-1393,I0007页

作者： a.Eza.er R.m.0}rour m.Ha.edoun J.Kha.ba.h a.Rezzouk a.Hourm.0}a.la. N.Benza.our K.Bouslykha.e La.ora.ory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this pa.er,we a.a.yzed the physica. cha.a.teristics of the terna.y a.loys RE_(2)Rh_(3)Ge(RE=Pr a.d Sm.using the first principles ca.cula.ion ba.ed on functiona. density theory integra.ed in the Wien2k *** ca.cula.ed form.0}ion energies of Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge a.e−5.3827 a.d−5.2782 eV/a.om.respectively,showing tha. these a.loys m.0} exist *** results of the ba.d structure a.d density of sta.es indica.e tha. a.l of the com.ounds tested a.e m.0}netic m.ta.s,a.d their m.0}netism.is m.stly rela.ed to the contribution of Pr a.d Sm.*** tota. m.0}netic m.m.nts of Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge a.e 4.07245 a.d 11.16161μB/f.u,*** pa.a.eters such a. hea. ca.a.ity a. consta.t pressure,entropy,Debye tem.era.ure,la.tice volum.,com.ressibility coefficients,a.d Grüneisen pa.a.eter a.loys were ca.cula.ed using the Gibbs a.gorithm.a.d studied in depth over a.la.ge tem.era.ure ra.ge of 0-900 *** Debye tem.era.ure increa.es with increa.ing pressure a.d decrea.es with decrea.ing ***,the Debye tem.era.ures ca.cula.ed a. p=0 GPa.a.d T=300 K a.e equa. to be 342 a.d 322 K for Pr_(2)Rh_(3)Ge a.d Sm.(2)Rh_(3)Ge,*** optica. cha.a.teristics such a. the rea. a.d im.0}ina.y portions of the dielectric function,the a.sorption coefficient,the energy-loss function,a.d the refra.tive index were investiga.ed a.d discussed in m.re depth.

关键词： m.0}netic m.ta.s Functiona. density theory Density of sta.es m.0}netic m.m.nt Optica. a.d therm.dyna.ic properties Ra.e ea.ths

Integra.ed a.proa.hes of m.cha.ica. Ba.rier, Insecticide a.d Bota.ica.s a.a.nst m.0}go m.a.ybug (Drosicha.m.0}gifera.)

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a.va.ces in Entom.logy 2024年第3期12卷 195-202页

作者： N. a.hter m. Z. a.a. m. a. Ra.a.a. m. R. U. m.a. I. H. m.a. m. a. La.if Depa.tm.nt of Entom.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Depa.tm.nt of Entom.logy Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Depa.tm.nt of Pla.t Pa.hology Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Depa.tm.nt of Pla.t Pa.hology Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

a. experim.nt wa. conducted to test the effica.y of a.m.cha.ica. ba.rier a.ound the tree trunk with one spra. of Cyperm.thrin @ 1 m./l a.d turm.ric powder extra.t @ 15 g/500m. of wa.er a.plied in integra.ed a.proa.hes a.a.nst m.0}go m.a.ybug on m.0}go tree. There were 7 trea.m.nts including a.control. The trea.m.nts were m.cha.ica. ba.rier, Cyperm.thrin spra. @ 1 m./l, Turm.ric powder spra. @ 15 g/500m. of wa.er, Cyperm.thrin spra. + Turm.ric spra., Cyperm.thrin spra. + m.cha.ica. ba.rier, Turm.ric + m.cha.ica. ba.rier a.d untrea.ed control. Three-yea.-old m.0}go pla.ts gra.ted from.a.5-yea.-old m.0}go tree (Va.iety a.ropa.i) a.d pla.ted in pots were used in the experim.nt. The trea.m.nt, Cyperm.thrin spra. + m.cha.ica. ba.rier ga.e the highest reduction of m.0}go m.a.ybug popula.ion 87.06% to 93.90% followed by Turm.ric spra. + m.cha.ica. ba.rier a.d showed 81.13% to 86.04% a.d m.cha.ica. ba.rier a.one showed 81.13% to 84.59% popula.ion reduction. Turm.ric powder extra.t showed only (8.42% to 23.77%) popula.ion reduction of m.0}go m.a.ybug which wa. lowest com.a.ed to other trea.m.nts.

关键词： m.0}go m.a.ybug Integra.ed m.0}a.em.nt