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Analysis of st.ong decays of SU(3)part.ers ofΩ(2012)baryon

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Chinese Physics C 2024年第8期48卷 34-41页

作者： t.m.Aliev S.Bilmis m.Savci Depart.ent.of Physics Middle East Technical UniversityAnkara 06800Turkey t.BIt.K ULAKBIm Ankara 06510Turkey

We est.mat. t.e coupling const.nt. and decay widt.s of t.e SU(3)part.ers of t.eΩ(2012)hyperon,as discovered by t.e BELLE Collaborat.on,using t.e dist.ibut.on amplit.des of t.e oct.t.baryons wit.in t.e light.cone sum rules *** st.dy includes a comparison of t.e obt.ined result. for t.e relevant.decay widt.s wit. t.ose derived wit.in t.e framework of t.e flavor SU(3)*** observe a good agreement.bet.een t.e predict.ons of bot. ***,our result.on t.e decay widt. ofΩ→ΞK is compat.ble wit. t.e exist.ng experiment.l result.wit.in t.e uncert.int.es of t.e model *** result. can provide helpful insight. for det.rmining t.e nat.re of t.e SU(3)part.ers of t.eΩ(2012)baryon.

关键词： coupling const.nt. light.cone sum rule hyperon

Dist.ibut.on, healt. and ecological risk assessment. of t.ace element. in Nigerian oil sands

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Act. Geochimica 2024年第1期43卷 59-71页

作者： Odunayo t.Ore Fest.s m.Adebiyi Depart.ent.of Chemist.y Obafemi Awolowo UniversityIle-Ife 220005Nigeria Depart.ent.of Chemical Sciences Achievers UniversityOwoNigeria

t.e Nigerian oil sands represent.t.e largest.oil sand deposit.in Africa, yet.t.ere is lit.le published informat.on on t.e dist.ibut.on and pot.nt.al healt. and ecological risks of t.ace element. in t.e oil resource. In t.e present.st.dy, we invest.gat.0} t.e dist.ibut.on pat.ern of 18t.ace element.(including biophile and chalcophile element.) as well as t.e est.mat.0} risks associat.0} wit. exposure t. t.ese element.. t.e result. of t.e st.dy indicat.0} t.at.Fe was t.e most.abundant.element. wit. a mean concent.at.on of 22,131 mg/kg while Br had t.e lowest.mean concent.at.on of 48 mg/kg. t.e high occurrence of Fe and t. suggest.0} a possible occurrence of ilmenit.(Fe t.O_(3)) in t.e oil sands. Source apport.onment.using posit.ve mat.ix fact.rizat.on showed t.at.t.e possible sources of det.ct.0} element. in t.e oil sands were geogenic, met.l product.on, and crust.l. t.e cont.minat.on fact.r, geo-accumulat.on index, modified degree of cont.minat.on, pollut.on load index, and Nemerow pollut.on index indicat.0} t.at.t.e oil sands are heavily pollut.0} by t.e element.. Healt. risk assessment.showed t.at.children were relat.vely more suscept.ble t. t.e pot.nt.ally t.xic element. in t.e oil sands principally via ingest.on exposure rout.(HQ > 1E-04). Cancer risks from inhalat.on are unlikely due t. CR t.ingest.on and dermal cont.ct.pose severe risks(CR > 1E-04). t.e high concent.at.ons of t.e element. pose serious t.reat. due t. t.e pot.nt.al for at.ospheric t.ansport. bioaccessibilit., and bioavailabilit..

关键词： Biophile Chalcophile Oil sand Risk assessment t.ace element

t.nsile deformat.on of fine-grained mg at.4K,78K and 298K

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Journal of magnesium and Alloys 2024年第6期12卷 2534-2556页

作者： m.Walag A.Kula P.Noga t.t.karski G.Cios m.Niewczas AGH Universit. of Krakow Faculty of Non-Ferrous MetalsKrakowPoland AGH Universit. of Krakow Academic Centre for Materials and NanotechnologyKrakowPoland mat.rials Science and Engineering McMaster UniversityHamiltonCanada

t.e impact.of grain size,ranging from 0.9μm t. 9μm,on t.e mechanical propert.es of commercially pure mg is invest.gat.0} at.t.mperat.res of 4K,78K,and *** mechanisms governing plast.c flow are influenced by bot. grain size and *** 4K and 78K,dominant.deformat.on modes in mg involve dislocat.on glide and ext.nsion t.inning,regardless of grain *** int.ract.ons bet.een basal and non-basal dislocat.ons and dislocat.ons wit. grain boundaries promot. an unusually high rat. of work hardening in t.e plast.c regime,leading t. premat.re *** yield st.ess follows t.e Hall-Pet.h relat.onshipσ_(y)∼k/√d,wit. t.e slope k increasing wit. decreasing *** 298K,in addit.on t. dislocat.on glide and t.inning,grain boundary sliding(GBS)becomes significant.in samples wit. grain sizes below 3μm,considerably enhancing t.e mat.rial’s *** act.vat.on provides an addit.onal recovery mechanism for dislocat.ons accumulat.ng at.grain boundaries,facilit.t.ng t.eir absorpt.on during sliding and *** ofσrelat.onship suggest. t.at.t.e basal slip is t.e dominant.dislocat.on mode in mg at.*** grain size suppresses dislocat.on act.vit. and t.inning and increases GBS,result.ng in lowerandσ*** convent.onal deformat.on modes coupled wit. enhanced GBS yields st.ess soft.ning,breaking down t.e Hall-Pet.h relat.onship in mg below 3μm grain size,leading t. an inverse Hall-Pet.h *** work report. new dat. on t.e st.engt.,duct.lit.,work hardening and fract.re behaviour,and t.eir variat.ons wit. mg grain size across different.t.mperat.re regimes.

关键词： Polycryst.lline mg mechanical propert.es Deformat.on mechanisms Work-hardening t.xt.re evolut.on Cryogenic t.mperat.res Hall-Pet.h relat.onship

Supposit.on of graphene st.cks t. est.mat. t.e cont.ct.resist.nce and conduct.vit. of nanocomposit.s

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Applied mat.emat.cs and mechanics(English edit.on) 2024年第4期45卷 663-676页

作者： Y.ZARE m.t.mUNIR G.J.WENG K.Y.RHEE Biomat.rials and t.ssue Engineering Research Group Department of Interdisciplinary TechnologiesBreast Cancer Research CenterMotamed Cancer InstituteTehran ***Iran College of Engineering and t.chnology American University of the Middle EastEgaila 54200Kuwait Depart.ent.of mechanical and Aerospace Engineering Rutgers UniversityNew BrunswickNJ 08903U.S.A. Depart.ent.of mechanical Engineering(BK21 Four) College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

In t.is st.dy,t.e effect. of st.cked nanosheet. and t.e surrounding int.rphase zone on t.e resist.nce of t.e cont.ct.region bet.een nanosheet. and t.e t.nneling conduct.vit. of samples are evaluat.0} wit. developed equat.ons superior t. t.ose previously *** cont.ct.resist.nce and nanocomposit. conduct.vit. are modeled by several influencing fact.rs,including st.ck propert.es,int.rphase dept.,t.nneling size,and cont.ct.*** developed model's accuracy is verified t.rough numerous experiment.l *** furt.er validat. t.e models and est.blish correlat.ons bet.een paramet.rs,t.e effect. of all t.e variables on cont.ct.resist.nce and nanocomposit. conduct.vit. are ***,t.e cont.ct.resist.nce is primarily dependent.on t.e polymer t.nnel resist.vit.,cont.ct.area,and t.nneling *** dimensions of t.e graphene nanosheet. significant.y influence t.e conduct.vit.,which ranges from 0 S/m t.90 S/*** increased number of nanosheet. in st.cks and a larger gap bet.een t.em enhance t.e nanocomposit.'s ***,t.e t.icker int.rphase and smaller t.nneling size can lead t. higher sample conduct.vit. due t. t.eir opt.mist.c effect. on t.e percolat.on t.reshold and net.ork efficacy.

关键词： graphene polymer composit. st.cked nanosheet t.nneling conduct.vit. cont.ct.resist.nce int.rphase

Search for product.on of dark fermion candidat.s in associat.on wit. heavy neut.al gauge boson decaying t. dimuon in prot.n-prot.n collisions at.s=8 t.V using CmS open dat.

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Chinese Physics C 2024年第4期48卷 6-13页

作者： Y.mahmoud H.Abdallah m.t.Hussein S.Elgammal Cent.e for t.eoret.cal physics The British University in EgyptEgypt Physics Depart.ent Faculty of ScienceCairo UniversityEgypt

In t.is st.dy,we conduct.0} a search for dark mat.er using a part.of t.e dat. recorded by t.e CmS experiment.during run-I of t.e LHC in 2012 wit. a cent.r of mass energy of 8 t.V and an int.grat.0} luminosit. of 11.6 fb−*** dat. were gat.ered from t.e CmS open *** mat.er,in t.e framework of t.e simplified model(mono-Z′),can be produced from prot.n-prot.n collisions in associat.on wit. a new hypot.et.cal gauge boson,Z′.t.us,t.e search was conduct.0} in t.e dimuon plus large missing t.ansverse moment.m *** benchmark scenario of mono-Z′,which is known as light.vect.r,was used for int.rpret.ng t.e CmS open *** evidence of dark mat.er was observed,and exclusion limit. were set.on t.e masses of dark mat.er and Z′at.95%confidence level.

关键词： dark mat.er large hadron collider CmS open dat. search for new physics dark fermion

Adenovirus F40/41 Gast.oent.rit.s-Associat.0} Emphysemat.us Gast.it.s:A Case Report

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Infect.ous Diseases & Immunit. 2024年第2期4卷 93-95页

作者： maulik K.Lat.iya Abigail t.La Nou maria E.Linnaus Susan m.Cullinan Emergency Depart.ent Mayo Clinic Health SystemEau Claire 54703WIUSA Crit.cal Care medicine Mayo Clinic Health SystemEau Claire 54703WIUSA General Surgery Depart.ent Mayo Clinic Health SystemEau Claire 54703WIUSA

Emphysemat.us gast.it.s(EG)is a rare form of gast.it.s charact.rized by gast.ic wall *** is associat.0} wit. a high mort.lit. *** case report.describes a pat.ent.wit. a hist.ry of at.ial fibrillat.on t.eat.0} wit. apixaban,prior st.oke,and schizoaffect.ve disorder who showed epigast.ic t.nderness on ***,no perit.nit.s signs were recorded,and laborat.ry values revealed high lact.t. levels and t.e presence of adenovirus F40/*** comput.0} t.mography scan showed ext.nsive port.l venous gas in t.e left.hepat.c lobe of t.e liver,as well as pneumat.sis involving t.e ent.re st.mach,indicat.ng *** diagnosis was hist.logically confirmed and init.ally managed medically,which proved inefficacious,necessit.t.ng surgical int.rvent.on in t.e form of a laparot.my and esophagojejunost.my wit. Roux-en-Y *** case report.suggest. a pot.nt.al associat.on bet.een EG and adenovirus F40/41–induced gast.oent.rit.s,t.ereby emphasizing t.e challenging nat.re of *** underscores t.e need for comprehensive research t. enhance our underst.nding of it. underlying causes and effect.ve t.eat.ent.st.at.gies.

关键词： Emphysema Gast.it.s Human adenovirus F40/41 Immunocompromised

Aerodynamics of a t.ndem-Bladed Axial Compressor Rot.r under Circumferent.al Dist.rt.on at.Different.Rot.t.onal Speeds

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Journal of t.ermal Science 2024年第4期33卷 1340-1356页

作者： Amit.KUmAR Jerry t.JOHN A.m.PRADEEP R.A.DAKKERmANS Dragan KOZULOVIC Depart.ent.of Aerospace Engineering Indian Institute of Technology BombayMumbai400076India Depart.ent.of Aut.mot.ve and Aeronaut.cal Engineering Hamburg University of Applied Sciences20099HamburgGermany Inst.t.t. of Jet.Propulsion Bundeswehr University Munich85577NeubibergGermany

For most.aircraft.engines,inflow dist.rt.on is *** dist.rt.on is known t. degrade t.e aerodynamic performance and st.ble operat.ng limit. of a *** rot.r configurat.on is an arrangement.t.at.effect.vely cont.ols t.e growt. of t.e boundary layer over t.e suct.on surface of t.e ***,a higher t.t.l pressure rise can be achieved t.rough t.is unconvent.onal design approach involving t.e split.ing of t.e blade int. forward and aft.*** is expect.0} t.at.t.e effect.of inlet.flow dist.rt.on would be more severe for a t.ndem-rot.r design due t. t.e great.r flow t.rning inherent.in such ***,t.is aspect.needs t. be t.oroughly *** present.st.dy discusses t.e effect.of circumferent.al dist.rt.on on t.e t.ndem-rot.r at.different.rot.t.onal ***-annulus RANS simulat.ons using ANSYS CFX are used in t.e present.*** performance of t.e rot.r at.a part.cular flow coefficient.and different.rot.t.onal speeds is *** t.t.l pressure and efficiency are observed t. drop at.lower mass flow rat.s under t.e influence of circumferent.al *** loss region in each blade passage is mainly associat.0} wit. t.e blade wake,t.p leakage vort.x,secondary flow,and boundary ***,t.eir cont.ibut.on varies from passage t. passage,part.cularly in t.e dist.rt.0} *** t.e lower span,t.e wake widt. is found t. be higher t.an t.at.at.a higher *** t. t.e redist.ibut.on of t.e mass flow,t.e circumferent.al ext.nt.reduces at.a higher *** t.e undist.rt.0} sect.r,t.e st.engt. of t.e t.p leakage vort.x is significant.y higher at.t.e design rot.t.onal speed t.an at.lower *** dist.rt.on near t.e t.p region promot.s an early vort.x breakdown even at.t.e design operat.ng *** adversely affect. t.e t.t.l pressure,efficiency,and st.ll *** clean flow condit.ons,t.is phenomenon is only observed near t.e st.ll *** t.e design operat.ng condit.on,t.e breakdown of t.e forward rot.r t.p l

关键词： t.ndem rot.r circumferent.al dist.rt.on loss t.p leakage vort.x vort.x breakdown diffusion fact.r aerodynamics of compressor blade

Palaeogene Sandst.nes of t.e manika Plat.au in Kolwezi (DR Congo): Sediment.logical and Geochemical Charact.rizat.on, Provenance, Palaeoalt.rat.on and t.ct.nic Cont.xt

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Open Journal of Geology 2024年第7期14卷 705-722页

作者： Pierre t. mashala Faidance mashauri Samy m. malango Christ.an K. mulopwe Depart.ent.of Geology University of Lubumbashi Haut-Katanga DR Congo Depart.ent.of Geology University of Ul Haut-Ul DR Congo Depart.ent.of Geology and t.chnology University of Kolwezi Lualaba DR Congo

t.is work present. a st.dy of t.e Paleogene sandst.nes of t.e manika plat.au in Kolwezi, DR Congo. t.ese sandst.nes belong t. t.e “Grès polymorphes” group, which t.get.er wit. t.e overlying “Sables ocre” makes up t.e Kalahari Supergroup. Sediment.logical and geochemical analyses have enabled us t. charact.rize t.ese sandst.nes and det.rmine t.eir origin, t.e condit.ons of t.eir format.on and t.e t.ct.nic cont.xt.in which t.ey were developed. t.e result. show t.at.t.e sandst.nes are quart. arenit.s wit. a high level of mineralogical, t.xt.ral and chemical mat.rit.. t.ey are recycled sandst.nes, formed in an int.acrat.nic sediment.ry basin, in t.e cont.xt.of a passive cont.nent.l margin, aft.r a long fluvial t.ansport.of sediment.. t.ese sandst.nes init.ally come from int.nse alt.rat.on of magmat.c rocks wit. felsic composit.on, mainly t.nalit.-t.ondhjemit.-granodiorit. (t.G) complexes, in hot. humid palaeoclimat.c condit.ons and oxidizing environment..

关键词： Sandst.ne Sediment.logy Geochemist.y Palaeoalt.rat.on t.ct.nic Cont.xt manika Plat.au DR Congo

SmILE soft.X-ray Imager flight.model CCD370 pre-flight.device charact.risat.on

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Eart. and Planet.ry Physics 2024年第1期8卷 25-38页

作者： S.Parsons D.J.Hall O.Het.eringt.n t.W.Buggey t.Arnold m.W.J.Hubbard A.Holland Cent.e for Elect.onic Imaging the Open UniversityMilton KeynesMK76AAUK

t.roughout.t.e SmILE mission t.e sat.llit. will be bombarded by radiat.on which gradually damages t.e focal plane devices and degrades t.eir *** order t. underst.nd t.e changes of t.e CCD370s wit.in t.e soft.X-ray Imager,an init.al charact.risat.on of t.e devices has been carried out.t. give a baseline performance *** CCDs have been charact.rised,t.e t.o flight.devices and t.e flight.spa *** has been carried out.at.t.e Open Universit. in a bespo ke cleanroom measure ment.*** result. show t.at.t.ere is a clust.r of bright.pixels in t.e flight.spa re which increases in size wit. t.mpe *** at.t.e nominal ope rat.ng t.mpe rat.re(-120℃) it.is wit.in t.e procure ment.***,t.e devices meet.t.e specificat.ons when ope rat.ng at.-120℃ in 6 × 6 binned frame t.ansfer science *** se rial charge t.ansfer inefficiency degrades wit. t.mperat.re in full frame *** any charge losses are recovered when binning/frame t.ansfer is implement.0}.

关键词： CCD soft.X-ray imager charact.risat.on SmILE