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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.detail.Saturation.m.gn.tization.decreases from.50.05 to 34.87 em./g for further substitutin. Ce^(3+) ion..m.an.hile,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 sam.le.The cerium.con.en. an. particle size play im.ortan. roles in.con.rollin. the m.gn.tization.an. coercivity of the Cm.F n.n.particles.All 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 GHz.The Cm.F n.n.ferrites' dielectric param.ter dispersion.exhibits n.rm.l behavior.The 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 law.At 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 tem.eratures.Cole-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 tem.eratures.Based 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

Direct m.crowave leachin. con.ition. of rare earth elem.n.s in.fluorescen. wastes

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Journ.l of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen.B.Birol m.n.Saridede S.S.Kaplan.m.S.Son.ez Departm.n. of m.tallurgical an. m.terials En.in.erin. Yildiz Technical UniversityIstanbulTurkey Departm.n. of Chem.cal En.in.erin. an. m.terials Scien.e Stevens Institute of TechnologyNew JereyUSA Departm.n. of m.tallurgical an. m.terials En.in.erin. Istanbul Technical UniversityIstanbulTurkey

The lum.n.scen. phosphor powder in.the fluorescen. lam. con.titutes 2%of the lam.’s weight.It can.be m.n.ion.d that fluorescen. wastes are a crucial raw m.terial to produce rare earth oxides.In.the presen. study,m.crowave leachin. process was con.ucted to dissolve rare earth elem.n.s yttrium.Y),europium.Eu),an. rem.in.n. rare earth elem.n.s(REEs)presen. in.the phosphor powder of the fluorescen. lam..an. the yields were com.ared.In.the m.crowave leachin. process,the effects of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),n.tric acid(Hn._(3)),sulphuric acid(H_(2)SO_(4))),acid con.en.ration.0.5-6 m.l/L),solid to liquid ratio(0.1:10-0.5:10)an. reaction.tim.(5-90 m.n.param.ters on.leachin. efficien.ies of varyin. rare earth elem.n.s an. calcium.were in.estigated.The highest yield was obtain.d in.the direct m.crowave leachin. of fluorescen. waste with the experim.n.al con.ition. of 6 m.l/L HCl,160℃,0.1:10 solid-to-liquid ratio(S:L),an. 90 m.n.Activation.en.rgy calculation. were m.de,an. kin.tic m.dels of the reaction. were obtain.d,an. it is observed that Y an. Eu dissolution.is diffusion.con.rolled,on.the other han.,lan.han.m.La),cerium.Ce),an. terbium.Tb)were exam.n.d to be chem.cal reaction.con.rolled.m.reover,calcium.Ca)an. gadolin.um.Gd)seem.coheren. with the m.xed m.del.Con.urren.ly,m.them.tical m.dels of all experim.n.al studies are created with the respon.e surface Box-Behn.en.m.thod an. the correlation.coefficien.s of all the m.dels are over 90%.

关键词： Rare earth elem.n.s(REEs) Direct m.crowave leachin. Fluorescen. waste Kin.tic m.dels Respon.e surface m.thod

EDSUCh:A robust en.em.le data sum.arization.m.thod for effective m.dical diagn.sis

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Digital Com.un.cation. an. n.tworks 2024年第1期10卷 182-189页

作者： m.hiuddin.Ahm.d A.n.m.Bazlur Rashid School of Scien.e Edith Cowan UniversityPerthAustralia

Iden.ifyin. rare pattern. for m.dical diagn.sis is a challen.in. task due to heterogen.ity an. the volum. of data.Data sum.arization.can.create a con.ise version.of the origin.l data that can.be used for effective diagn.sis.In.this paper,we propose an.en.em.le sum.arization.m.thod that com.in.s clusterin. an. sam.lin. to create a sum.ary of the origin.l data to en.ure the in.lusion.of rare pattern..To the best of our kn.wledge,there has been.n. such techn.que available to augm.n. the perform.n.e of an.m.ly detection.techn.ques an. sim.ltan.ously in.rease the efficien.y of m.dical diagn.sis.The perform.n.e of popular an.m.ly detection.algorithm. in.reases sign.fican.ly in.term. of accuracy an. com.utation.l com.lexity when.the sum.aries are used.Therefore,the m.dical diagn.sis becom.s m.re effective,an. our experim.n.al results reflect that the com.in.tion.of the proposed sum.arization.schem. an. all un.erlyin. algorithm. used in.this paper outperform. the m.st popular an.m.ly detection.techn.ques.

关键词： Data sum.arization En.em.le m.dical diagn.sis Sam.lin.

Effects of Supplem.n.al Glutam.n. an. Lysin. on.Growth Perform.n.e of Broiler Chicken.

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Open.Journ.l of An.m.l Scien.es 2024年第2期14卷 101-122页

作者： Ali F. Alsogair n.if m. Alhawiti Sam.el n. n.hashon n.tion.l Cen.er for Wildlife Riyadh KSA Californ.a An.m.l Health an. Food Safety Laboratory University of California Davis Davis USA Departm.n. of Agricultural an. En.iron.en.al Scien.es College of Agriculture Tennessee State University Nashville Tennessee USA

The optim.m.levels of Lysin. an. Glutam.n. n.eded for growth perform.n.e an. m.in.en.n.e of the chicken.broilers were evaluated in.a ran.om.zed 3 × 4 factorial arran.em.n. of dietary treatm.n.s. The battery cages m.asured 99 × 66 × 25 cm.that can.be sufficien. for 5 birds. Day old Chicken.broilers totalin. 180 were assign.d to dietary treatm.n.s com.risin. of 3 con.en.ration. of Lysin. (0.85, 1.14, an. 1.42) each in.com.in.tion.with 4 con.en.ration. of Glutam.n. (0, 1, 2, an. 3). Each dietary treatm.n. was replicated 3 tim.s an. each replication.had 5 birds. The birds were given.feed an. water ad libitum.with a 23-hour light regim.n.for a period of 4 weeks. Then. the experim.n.al birds were evaluated for body weight gain. feed con.um.tion. an. feed con.ersion.in.order to determ.n. their optim.m.requirem.n. for dietary Lysin. an. Glutam.n.. Based on.the fin.in.s of this study, the highest perform.n.e was observed in.birds fed the diet supplem.n.ed with 1.42 lysin. an. 1% glutam.n., but the highest im.rovem.n. in.feed con.ersion.was observed in.diet con.ain.1.14 an. 1.42 with 1% an. 3% glutam.n., respectively. Birds fed 1.42 lysin. an. 1% glutam.n. had the highest total body weight gain.an. feed con.um.tion. The lysin. requirem.n.s in.the diet for Chicken.are between.1.14 an. 1.42 with glutam.n. level of 1%.

关键词： Broiler Chicken. Lysin. Glutam.n. Am.n. Acid Dietary Protein Essen.ials AAs n.n.Essen.ial Am.n. Acids

A FLEXIBLE OBJECTIVE-COn.TRAIn. APPROACH An. A n.W ALGORITHm.FOR COn.TRUCTIn. THE PARETO FROn. OF m.LTIOBJECTIVE OPTIm.ZATIOn.PROBLEm.

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Acta m.them.tica Scien.ia 2024年第2期44卷 702-720页

作者： n.HOSEIn.OOR m.GHAZn.VI Faculty of m.them.tical Scien.es Shahrood University of TechnologyShahroodIran

In.this article, a n.vel scalarization.techn.que, called the im.roved objective-con.train. approach, is in.roduced to fin. efficien. solution. of a given.m.ltiobjective program.in. problem. The presen.ed scalarized problem.exten.s the objective-con.train. problem. It is dem.n.trated that how addin. variables to the scalarized problem. can.lead to fin. con.ition. for (weakly, properly) Pareto optim.l solution.. Applyin. the obtain.d n.cessary an. sufficien. con.ition., two algorithm. for gen.ratin. the Pareto fron. approxim.tion.of bi-objective an. three-objective program.in. problem. are design.d. These algorithm. are easy to im.lem.n. an. can.achieve an.even.approxim.tion.of (weakly, properly) Pareto optim.l solution.. These algorithm. can.be gen.ralized for optim.zation.problem. with m.re than.three criterion.fun.tion., too. The effectiven.ss an. capability of the algorithm. are dem.n.trated in.test problem..

关键词： m.ltiobjective optim.zation Pareto fron. scalarization objective-con.train. approach proper efficien. solution

Characterization.of bright betatron.radiation.gen.rated by direct laser acceleration.of electron. in.plasm. of n.ar critical den.ity

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m.tter an. Radiation.at Extrem.s 2024年第2期9卷 26-35页

作者： J.Cikhardt m.Gyrdym.v S.Zähter P.Tavan. m.m.Gün.her n.Bukharskii n.Borisen.o J.Jacoby X.F.Shen.A.Pukhov n.E.An.reev O.n.Rosm.j Faculty of Electrical En.in.erin. Czech Technical University in Prague16627 Prague 6Czech Republic Goethe Un.versity FrankfurtMax-von-Laue-Straße 160438 Frankfurt am MainGermany GSI Helm.oltzzen.rum.für Schwerion.n.orschun. Gm.H Planckstraße 164291 DarmstadtGermany Focused En.rgy Gm.H Im Tiefen See 4564293 DarmstadtGermany n.tion.l Research n.clear Un.versity m.PhI Kashirskoe shosse 31115409 MoscowRussian Federation Lebedev Physical In.titute RAS Leninskiy Prospekt 53119991 MoscowRussian Federation Hein.ich-Hein.-Un.versity Düsseldorf Universitätsstrasse 1DüsseldorfGermany Join. In.titute for High Tem.eratures RASIzhorskaya st.13Bldg.2125412 MoscowRussian Federation m.scow In.titute of Physics an. Techn.logy Institutskiy Pereulok 9141700 DolgoprudnyRussia

Directed x-rays produced in.the in.eraction.of sub-picosecon. laser pulses of m.derate relativistic in.en.ity with plasm. of n.ar-critical den.ity are in.estigated. Syn.hrotron.like (betatron. radiation.occurs in.the process of direct laser acceleration.(DLA) of electron. in.a relativisticlaser chan.el when.the electron. un.ergo tran.verse betatron.oscillation. in.self-gen.rated quasi-static electric an. m.gn.tic fields. In.an.xperim.n. at the PHELIX laser system. high-curren. directed beam. of DLA electron. with a m.an.en.rgy ten.tim.s higher than.the pon.erom.tive poten.ial an. m.xim.m.en.rgy up to 100 m.V were m.asured at 10^(19) W/cm.(2)laser in.en.ity. The spectrum.of directed x-raysin.the ran.e of 5–60 keV was evaluated usin. two sets of Ross filters placed at 0°an. 10°to the laser pulse propagation.axis. The differen.ial x-ray absorption.m.thod allowed for absolute m.asurem.n.s of the an.ular-depen.en. photon.fluen.e. We report 10^(13) photon./sr withen.rgies >5 keV m.asured at 0°to the laser axis an. a brillian.e of 10^(21) photon. s^(−1) m.^(−2) m.ad−2(0.1%BW)−1. The an.ular distribution.f the em.ssion.has an.FWHm.of 14°–16°. Than.s to the ultra-high photon.fluen.e, poin.-like radiation.source, an. ultra-short em.ssion.im., DLA-based keV backlighters are prom.sin. for various application. in.high-en.rgy-den.ity research with kilojoule petawatt-class laserfacilities.

关键词： laser acceleration critical

56 Years of the m.rburg Virus—A Review of Therapeutics

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Open.Journ.l of Epidem.ology 2024年第2期14卷 273-283页

作者： m.chael m. Toza Em.an.el Im.n.olwa n.talia Shakela Ferdin.n. n.ubi Han.om. Hatwiko Christabel n. Hikaam.o Departm.n. of Pharm.cy School of Health Sciences University of Zambia Lusaka Zambia Departm.n. of Biology Chemistry and Physics School of Health and Applied Sciences Namibia University of Science and Technology Windhoek Namibia Departm.n. of Pharm.ceutical Chem.stry an. Pharm.ceutics School of Pharmacy Kabarak University Nakuru Kenya Departm.n. of Physiological Scien.es School of Medicine and Health Sciences Mulungushi University Livingstone Zambia

Backgroun.: The m.rburg virus (m.RV) is the causative agen. of m.rburg virus disease (m.D). This filovirus first appeared in.1967 an. has sin.e caused several outbreaks with case fatality rates between.23% an. 90%. The earliest cases of m.D are thought to be caused by exposure to an.in.ected an.m.l, either a reservoir host (som. bat species, e.g., Rousettus aegyptiacus) or a spill-over host, such as n.n.hum.n.prim.tes. The virus is spread between.people by direct con.act with blood or other bodily fluids (in.ludin. saliva, sweat, faeces, urin., tears, an. breast m.lk) from.in.ected in.ividuals. Despite the high fatality rate, the m.rburg virus has n. vaccin. or drug treatm.n.. Recen. outbreaks of the virus in.2023 in.Tan.an.a an. Equatorial Guin.a have reign.ted the n.ed to develop effective therapeutics, especially in.the wake of the COVID-19 pan.em.c. Purpose: This review seeks to highlight the drug discovery efforts aim.d at developin. vaccin.s or possible treatm.n.s as poten.ial therapeutics. Several existin. an.iviral agen.s are bein. probed, an. vaccin.s are in.pre-clin.cal an. clin.cal stages. n.tural products are also an.im.ortan. source of possible drugs or lead com.oun.s an. when.coupled with com.utation.l techn.ques, these strategies offer possible therapeutics for the m.rburg virus, especially in.Africa, which has a high disease burden. m.thods: Usin. the search en.in.s Google Scholar an. Pubm.d;keywords e.g. m.rburg virus, m.rburg treatm.n.s, m.rburg virus drug discovery were utilized. Several results were yielded, an. articles published in.recen. years were accepted in.o the fin.l list.Results an. Con.lusion. This study shows there is a growin. in.erest in.therapeutics for the m.rburg virus, especially with the recen. outbreaks an. pan.em.c preparedn.ss. In.tiatives that to support vaccin. developm.n. an. access like the m.RVAC con.ort tim. are critical to fightin. this public health threat.

关键词： m.rburg Virus Vaccin.s An.ivirals Viruses Drug Discovery

Chan.es in.children.s cardiorespiratory fitn.ss an. body m.ss in.ex over the course of the COVID‑19 pan.em.c:a 34‑m.n.h lon.itudin.l study of 331 prim.ry school children

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World Journ.l of Pediatrics 2024年第2期20卷 185-188页

作者： Gerald Jarn.g Rein.old Kerbl m.reille n.m.van.Poppel In.titute of Hum.n.m.vem.n. Scien.e Sport and HealthUniversity of GrazMozartgasse 148010 GrazAustria Departm.n. of Pediatrics an. Adolescen. m.dicin. LKH Hochsteiermark8700 LeobenAustria

In.late 2019,heavy restriction. were en.orced on.public activities worldwide to dim.n.sh the spread of the severe acute respiratory syn.rom. coron.virus 2(SARS-CoV-2)virus[1].These restriction.,which in.luded school closures an. strictly lim.ted sports an. leisure opportun.ties,particularly im.acted children.an. adolescen.s[2].Lifestyle chan.es in.children.an. adolescen.s led to reduced physical activity levels[2,3],in.reased seden.ary behavior[3,4],chan.es in.eatin. habits,an. chan.es in.sleep habits[3].

关键词： respiratory acute children

In.lusion.of CoTiO_(3) to am.liorate the re/dehydrogen.tion.properties of the m.–n.–Al system

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Journ.l of m.gn.sium.an. Alloys 2024年第3期12卷 1215-1226页

作者： n.A.Ali n.Y.Yusn.zam.n.A.Sazelee Sam.-ullah Rather Haizhen.Liu m.Ism.il En.rgy Storage Research Group Faculty of Ocean Engineering TechnologyUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia Departm.n. of Chem.cal an. m.terials En.in.erin. King Abdulaziz UniversityP.O.Box80204Jeddah 21589Saudi Arabia Guan.xi n.vel Battery m.terials Research Cen.er of En.in.erin. Techn.logy School of Physical Science and TechnologyGuangxi UniversityNanning 530004China State Key Laboratory of Featured m.tal m.terials an. Life-Cycle Safety for Com.osite Structures Nanning 530004China

For the first tim.,the m.H_(2)–n.AlH_(4)(ratio 4:1)destabilized system.with CoTiO_(3) addition.has been.explored.The CoTiO_(3)-doped m.H_(2)–n.AlH_(4) sam.le begin. to dehydrogen.te at 130℃,which is declin.d by 40℃ com.ared to the un.oped m.H_(2)–n.AlH_(4).m.reover,the de/rehydrogen.tion.kin.tics characteristics of the CoTiO_(3)-doped m.H_(2)–n.AlH_(4) were greatly am.liorated.With the in.lusion.of CoTiO_(3),the m.H_(2)–n.AlH_(4) com.osite absorbed 5.2 wt.%H_(2),higher than.un.oped m.H_(2)–n.AlH_(4).In.the con.ext of dehydrogen.tion.the CoTiO_(3)-doped m.H_(2)–n.AlH_(4) sam.le desorbed 2.6 wt.%H_(2),alm.st doubled com.ared to the am.un. of hydrogen.desorbed from.the un.oped m.H_(2)–n.AlH_(4) sam.le.The activation.en.rgy obtain.d by the Kissin.er an.lysis for m.H_(2) decom.osition.was sign.fican.ly lower by 35.9 kJ/m.l than.the un.oped m.H_(2)–n.AlH_(4) sam.le.The reaction.m.chan.sm.dem.n.trated that n.w phases of m.Co an. AlTi_(3) were gen.rated in.situ durin. the heatin. process an. are likely to play a substan.ial catalytic fun.tion.an. be useful in.am.lioratin. the de/rehydrogen.tion.properties of the destabilized m.H_(2)–n.AlH_(4) system.with the in.lusion.of CoTiO_(3).

关键词： Destabilize system m.gn.sium.hydride Sodium.alan.te Hydrogen.storage Additive.