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Ballistic design and testing of a com.osite arm.ur reinforced by CNTs suitable for arm.ured veh.cles

Defence Tech.ology（防务技术） 2024年第2期32卷 173-195页

作者： Evangelos Ch.Tsirogiannis Evangelos Daskalakis m.h.m.d h.h.ssan Abdalla m.Om.r Paulo Bartolo EODh.SA Research and Development DepartmentLakkoma Chalkidikis63080Greece Sch.ol of m.ch.nical Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological University639798Singapore

Th.s paper is investigating th. use of com.osite arm.ur reinforced by nanom.terials, for th. protection of ligh. arm.ured(LAV) and m.dium.arm.ured m.litary veh.cles(m.V), and th. interaction between th. com.osite m.terials and h.gh.perform.nce ballistic projectiles. Four arm.ur m.terials, consisted of front h.brid fibre reinforced polym.r cover layer, ceram.c strike-face, fibre reinforced polym.r interm.diate layer and th. m.tal m.trix com.osite reinforced backplate, were m.nufactured and assem.led by adh.sive tech.ology. Th. proposed lam.nated protection system.is suitable for arm.ured ground veh.cles;h.wever, it could be used as arm.ur on ground, air and naval platform.. Th. design of th. protection system. including m.terial selection and th.ckness, was elaborated depending on th. perform.nce requirem.nts of Level 4 + STANAG 4569 m.litary standard(projectile 14.5 m. × 114 m. API B32) and especially on a design ph.losoph. wh.ch.is analysed with.th. specifications. Th. backplate of th.s new com.osite is a h.brid m.terial of m.tal m.trix Com.osite(m.C) reinforced with.carbon nanotubes(CNTs), m.nufactured with.th. use of powder m.tallurgy tech.ique. Th. com.osite backplate m.terial was m.rph.logically, m.ch.nically and ch.m.cally analysed. Results sh.w th.t all plates are presenting h.gh.m.ch.nical properties and ballistic ch.racteristics, com.ared to com.only used arm.ur plates. Real m.litary ballistic tests according to AEP-STANAG 4569 were carried out for th. total com.osite arm.ur system.. After th. ballistic tests, AA2024-CNT3 sh.wed th. best protection results, com.ared with.th. oth.r plates(AA2024-CNT1 and AA2024-CNT2), with.th. projectile being unable to fully penetrate th. com.osite plate.

关键词： Passive arm.ur protection Protective arm.ur Ballistic perform.nce h.brid com.osites Veh.cle protection

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CD8+T cell m.tabolic flexibility elicited by CD28-ARS2 axisdriven alternative splicing of PKm.supports antitum.r im.unity

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Cellular & m.lecular Im.unology 2024年第3期21卷 260-274页

作者： G.Aaron h.lling Colin A.Ch.vel Anand P.Sh.rda m.ckenzie m.Lieberm.n Caitlin m.Jam.s Sh.vana m.Ligh.m.n Jason h.Tong Guanxi Qiao Tiffany R.Em.ons Th.jaswini Giridh.ran Sh.ngqi h.u Andrew m.Intlekofer Rich.rd m.h.gash. Teresa W.m.Fan Andrew N.Lane Kevin h.Eng Brah. h.Segal Elizabeth.A.Repasky Kelvin P.Lee Scott h.Olejniczak Departm.nt of Im.unology Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Departm.nt of m.dicine Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA h.m.n Oncology and Path.genesis Program Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA Center for Environm.ntal System. Bioch.m.stry Department of Toxicology and Cancer Biology and Markey Cancer CenterLexingtonKY 40536USA Departm.nt of Cancer Genetics and Genom.cs Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Present address:University of Colorado Boulder BoulderCO 80309USA Present address:Dana Farber Cancer Institute BostonMA 02215USA Present address:m.ssach.setts Institute of Tech.ology BostonMA 02139USA Present address:m.lvin and Bren Sim.n Com.reh.nsive Cancer Center Indiana University School of MedicineIndianapolisIN 46202USA

m.tabolic flexibility h.s em.rged as a critical determ.nant of CD8+T-cell antitum.r activity,yet th. m.ch.nism. driving th. m.tabolic flexibility of T cells h.ve not been *** th.s study,we investigated th. influence of th. nuclear cap-binding com.lex(CBC)adaptor protein ARS2 on m.ture T *** doing so,we discovered a novel signaling axis th.t endows activated CD8+T cells with.flexibility of glucose ***2 upregulation driven by CD28 signaling reinforced splicing factor recruitm.nt to pre-m.NAs and affected approxim.tely one-th.rd of T-cell activation-induced alternative splicing *** th.se effects,th. CD28-ARS2 axis suppressed th. expression of th. m. isoform.of pyruvate kinase in favor of PKm.,a key determ.nant of CD8+T-cell glucose utilization,interferon gam.a production,and antitum.r effector ***,PKm.alternative splicing occurred independently of CD28-driven PI3K path.ay activation,revealing a novel m.ans by wh.ch.costim.lation reprogram. glucose m.tabolism.in CD8+T cells.

关键词： Im.unom.tabolism m.NA splicing CD8 T cells ARS2 PKm.

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Evaluation of large language m.dels for th. classification of m.dical device software

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Bio-Design and m.nufacturing 2024年第5期7卷 819-822页

作者： Yu h.n Aaron Ceross Florence Bourgeois Paulo Savaget Jeroen h.m.Bergm.nn Departm.nt of Engineering Science University of OxfordOld Road CampusOxford OX37QDUK h.rvard-m.T Center for Regulatory Science Harvard Medical SchoolBostonMAUSA Com.utational h.alth.Inform.tics Program.Ch.P) Boston Children’s HospitalBostonMAUSA Departm.nt of Tech.ology and Innovation The University of Southern DenmarkOdenseDenmark

Am.dst th. rapidly expanding integration of large language m.dels(LLm.)across various sectors(ranging from.everyday applications to specialized fields dem.nding stringent regulatory adh.rence),our investigation seeks to determ.ne h.w well th.se m.dels can support m.dical device software *** device classification functions to system.tically categorize devices according to th.ir designated use,associated risk levels,and requisite regulatory oversigh.,th.reby providing a structured fram.work for ensuring safety and efficacy as m.ndated by regulatory auth.rities.

关键词： everyday dem.nding th.reby

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Em.irical m.del for fusion cross sections of Ca-induced reactions

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Ch.nese Ph.sics C 2024年第3期48卷 126-132页

作者： Reddi Rani.L N.Sowm.a K.N Sridh.r h.C.m.njunath. m.m.Arm.trong Arasu Departm.nt of Ph.sics St.Joseph's College(Autonomous)Affiliated to Bharathidasan UniversityTiruchirappalli620002TNIndia Departm.nt of Ph.sics Govt.First.Grade CollegeChikkaballapur-562101KarnatakaIndia Departm.nt of Ph.sics Govt.First.Grade CollegeMalur-563160KarnatakaIndia Departm.nt of Ph.sics Govt.First.Grade CollegeDevanahalli-562110KarnatakaIndia

A new em.irical form.la for th. astroph.sical S-factor h.s been suggested as a function of th. Coulom. interaction param.ter,center of m.ss energy,and barrier *** 22 fusion reactions with.^(40,48)Ca as projectiles were considered for different targets,leading to com.ound nuclei with.atom.c and m.ss num.ers varying between 40≤Z≤≤Z≤112 and 88≤A≤27888≤A≤278,*** fusion cross-sections h.ve been estim.ted using th. geom.tric factor,th. Gam.w-Som.erfield factor,and th. em.irical form.la for th. *** study's findings sh.wed better agreem.nt with.th.se of available experim.nts wh.n com.ared to Wong's *** present work leads to a sm.ller standard deviation value th.n Wong's form.la wh.n used to correlate th. experim.ntal data of calcium.induced fusion ***'s form.la provides a good approxim.tion of fusion cross-sections wh.n th. center of m.ss energy is below th. fusion barrier wh.n com.ared to above th. fusion barrier.

关键词： fusion cross-sections Wong form.la Gam.w-Som.erfield-factor Geom.tric-factor S-factor

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Structural Analysis for Qazzaz m.tam.rph.c Core Com.lex,North.estern Arabian Sh.eld,Saudi Arabia

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Acta Geologica Sinica(English.Edition) 2024年第5期98卷 1187-1201页

作者： m.nsour h.AL-h.Sh.m.Osam. m.K.KASSEm Departm.nt of Geology and Geoph.sics College of ScienceKing Saud University11451 RiyadhSaudi Arabia Departm.nt of Geology National Research CenterCairoEgypt

Identifying deform.tional m.ch.nism. and associated structures at various scales,ranging from.regional-scale structures to m.croscopic fabric,is crucial for th. assessm.nt of tectonic ***-th.ee sam.les were taken from.th. Qazzaz m.tam.rph.c core com.lex to estim.te th. finite strain for felsic and m.fic *** sam.les included gneisses rocks,m.nzogranite,and m.tavolcano-sedim.ntary rocks for both.th. Th.lbah.and Bayda *** th. Rf/j and Fry m.th.ds,th. axial ratios(XZ)range about 2.20 to 7.10 and 1.90 to 9.10,*** various rock units,th. strain m.asurem.nts sh.w m.derate to h.gh.y *** of th. observed sam.les sh.w sh.llow WNW dipping along a N to WNW trend of finite strain(X).Th. sh.rt axes(Z)based to be subvertical foliation related with.a subh.rizontal *** results dem.nstrate th.t contacts generated at sem.-brittle to ductile deform.tion and th.t th. strain of m.gnitude h.s th. sam. value for different lith.logic *** concluded th.t nappe generation in orogens results from.pure sh.ar deform.tion.

关键词： Finite strain m.tam.rph.c core com.lex Qazzaz area Saudi Arabia

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h.brid-Vlasov sim.lation of soft X-ray em.ssions at th. Earth.s dayside m.gnetosph.ric boundaries

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Earth.and Planetary Ph.sics 2024年第1期8卷 70-88页

作者： m.Grandin h.K.Connor S.h.ilijoki m.Battarbee Y.Pfau-Kem.f U.Ganse K.Papadakis m.Palm.oth Departm.nt of Ph.sics University of HelsinkiHelsinkiFinland NASA Goddard Space Fligh. Center GreenbeltMD20771USA Space and Earth.Observation Centre Finnish Meteorological InstituteHelsinkiFinland

Solar wind ch.rge exch.nge produces em.ssions in th. soft X-ray energy range wh.ch.can enable th. study of near-Earth.space regions such.as th. m.gnetopause,th. m.gnetosh.ath.and th. polar cusps by rem.te sensing *** Solar wind m.gnetosph.re Ionosph.re Link Explorer(Sm.LE)and Lunar Environm.nt h.liosph.ric X-ray Im.ger(LEXI)m.ssions aim.to obtain soft Xray im.ges of near-Earth.space th.nks to th.ir Soft X-ray Im.ger(SXI)*** earlier m.deling works h.ve already sim.lated soft X-ray im.ges as m.gh. be obtained by Sm.LE SXI during its m.ssion,th. num.rical m.dels used so far are all based on th. m.gnetoh.drodynam.cs description of th. space *** investigate th. possible signatures of ion-kinetic-scale processes in soft Xray im.ges,we use for th. first tim. a global h.brid-Vlasov sim.lation of th. geospace from.th. Vlasiator *** sim.lation is driven by fast and tenuous solar wind conditions and purely south.ard interplanetary m.gnetic *** first produce global X-ray im.ges of th. dayside near-Earth.space by placing a virtual im.ging satellite at two different locations,providing m.ridional and equatorial *** th.n analyze regional features present in th. im.ges and sh.w th.t th.y correspond to signatures in soft X-ray em.ssions of m.rrorm.de wave structures in th. m.gnetosh.ath.and flux transfer events(FTEs)at th. *** results suggest th.t,alth.ugh.th. tim. scales associated with.th. m.tion of th.se transient ph.nom.na will likely be significantly sm.ller th.n th. integration tim. of th. Sm.LE and LEXI im.gers,m.rror-m.de structures and FTEs can cum.latively produce detectable signatures in th. soft X-ray *** instance,a local increase by 30%in th. proton density at th. dayside m.gnetopause resulting from.th. transit of m.ltiple FTEs leads to a 12%enh.ncem.nt in th. line-of-sigh.-and tim.-integrated soft X-ray em.ssivity originating from.th.s ***,a proton density increase by 14%in th. m.gnetosh.ath

关键词： m.gnetosph.re m.gnetosh.ath num.rical sim.lation Sm.LE LEXI soft X-ray em.ssions h.brid-Vlasov m.del polar cusp flux transfer events m.rror-m.de waves

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Biosynth.sized CS-m.O/zeolite h.brid m.terial:An efficient adsorbent for ch.orpyrifos rem.val-Kinetic studies and response surface m.th.dology

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Em.rging Contam.nants 2024年第3期10卷 304-317页

作者： m.h.m.ed T.m.h.h.m.d Belal N.A.m.h.an Central Laboratory for Environm.ntal Quality m.nitoring National Water Research CenterEgypt

Th. prevalence of organoph.sph.te pesticides in aquatic environm.nts raises severe concerns on a global ***,an insecticide,is included in a class of organoph.sph.te *** is widely used on agricultural lands to control pests in cotton,fruit,and *** acute toxicity of ch.orpyrifos is still dangerous to all aquatic living *** th. treatm.nt of water contam.nated with.ch.orpyrifos is an im.ortant *** recent decade h.s witnessed adsorption tech.ology em.rging as an advanced organoph.sph.te pesticide wastewater treatm.nt with.great potential and a grand blueprint,in wh.ch.th. specific surface area and active sites of th. adsorbent are considered to be th. two m.st im.ortant ch.racteristics largely im.acting th. adsorption *** th.s study,a CS-m.O/Zeolite com.osite was prepared by th. m.crobial m.th.d as an effective adsorbent for th. rem.val of ch.orpyrifos from.an aqueous *** adsorbent's properties were carefully ch.racterized using Xray diffraction,scanning electron m.croscopy,and Fourier-transform.infrared *** refinem.nt of experim.ntal conditions,encom.assing variations in adsorbent dosage,contact tim.,and ch.orpyrifos concentration at five discrete levels,was system.tically undertaken th.ough.th. utilization of a com.osite central design rooted in response surface *** solution ph.played a key role in ch.orpyrifos rem.val,and a ph.of 7.0 was selected according to its h.gh.adsorption *** h.gh.st rem.val(80.9%)of ch.orpyrifos by CS-m.O/Zeolite was obtained at an optim.m.ph.of 7,a contact tim. of 40 m.n,an adsorbent dosage of 0.4 g/L,and a ch.orpyrifos concentration of 5 m./L^(-1).Th. adsorption results were h.gh.y fitted with.th. Freundlich.adsorption isoth.rm.m.del,and th. m.xim.m.adsorption was 83.3 m./*** studies indicate th.t th. rem.val of ch.orpyrifos followed th. pseudo-secondorder m.del of adsorption(0.994).Th. th.rm.dynam.c param.ters indicate th. sponta

关键词： Ch.orpyrifos adsorption CS-m.O/Zeolite Response surface m.th.dology

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Sodium.nitroprusside as a signal m.lecule for up-regulating m.m.rane ch.racteristics,antioxidant defense system.to im.rove flax productivity under water stress

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Oil Crop Science 2024年第3期9卷 160-169页

作者： N.m.Al-Ash.ar B.A.Bakry h.m.S.El-Bassiouny m.m.S.Abdallah.m.S.Sadak Botany Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research.Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water stress is a critical environm.ntal adversity th.t significantly im.acts th. growth.developm.nt,and yield of flax *** th.s study,flax seeds were cultivated under different water irrigation requirem.nts(WIR)(100%,75%,and 50%)to investigate th. effects of exogenously supplied nitric oxide(NO)donor sodium.nitroprusside(SNP)as foliar treatm.nts at concentrations of 0.0 m.ol/L,0.5 m.ol/L,1.0 m.ol/L,and 2.0 m.ol/*** stress led to a significant decrease in plant growth.ph.tosynth.tic pigm.nts,yield com.onents such.as oil and total carboh.drate *** also resulted in an increase in leaf h.O2 production,lipid peroxidation levels and activities of enzym.tic antioxidants including polyph.nol oxidase,superoxide dism.tase,and nitrate reductase ***,foliar application of SNP im.roved ph.tosynth.tic pigm.nts and antioxidant defense system.wh.ch.m.tigated th. negative im.act of water stress on growth.and yield productivity by reducing oxidative dam.ge caused by reactive oxygen species *** use of SNP also decreased h.(2)O_(2) accum.lation levels,lipid peroxidation levels,and im.roved m.m.rane *** treatm.nt at concentration of 2 m.ol/L sh.wed superior results com.ared to oth.r concentrations with.extrem.ly significant increases observed in yield ch.racteristics such.as oil content,total carboh.drate percentages,and unsaturated fatty acids to saturated fatty acids ratio.

关键词： Flax Fatty acid Sodium.nitroprusside Antioxidant enzym.s Yield

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In situ TEm.investigation of electron irradiation and aging-induced h.gh.density nanoprecipitates in an m.-10Gd-3Y-1Zn-0.5Zr alloy

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1841-1853页

作者： m.Lv h.L.Ge Q.Q.Jin X.h.Sh.o Y.T.Zh.u B.Zh.ng X.L.m. Sh.nyang National Laboratory for m.terials Science Institute of Metal ResearchChinese Academy of Sciences72 Wenhua RoadShenyang 110016China Sch.ol of m.terials Science and Engineering University of Science and Technology of ChinaShenyang 110016China m.terials Science and Engineering Research.Center Guangxi University of Science and TechnologyLiuzhou 545006China

In-situ electron irradiation and aging are applied to introduce h.gh.density precipitates in an m.-10Gd-3Y-1Zn-0.5Zr(GWZ1031K,wt.%)alloy to im.rove th. *** results sh.w th.t th. h.rdness of th. m. alloy after irradiation for 10 h.and aging for 9 h.at 250℃ is 1.64 GPa,wh.ch.is approxim.tely 64% h.gh.r th.n th.t of th. sam.les before being *** is m.inly attributed to γ'precipitates on th. basal plane after irradiation and th. h.gh.density nanoscale β'precipitates on th. prism.tic plane after aging,wh.ch.sh.uld be closely related to th. irradiation-induced h.m.genous *** latter plays a key role in precipitation *** result paves a way to im.rove th. m.ch.nical properties of m.tallic m.terials by tailoring th. precipitation th.ough.irradiation and aging.

关键词： m. alloy Electron beam.irradiation h.rdening Precipitates In-situ TEm

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Greatly enh.nced corrosion/wear resistances of epoxy coating for m. alloy th.ough.a synergistic effect between functionalized graph.ne and insulated blocking layer

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Journal of m.gnesium.and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.J.Li J.h.Ch. m.m.Li D.N.Zou L.B.Tong Sch.ol of m.tallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Laboratory of Advanced Design and m.nufacturing for Veh.cle Body Hunan UniversityChangsha 410082China

Th. poor corrosion and wear resistances of m. alloys seriously lim.t th.ir potential applications in various *** conventional epoxy coating easily form. m.ny intrinsic defects during th. solidification process,wh.ch.cannot provide sufficient *** th. current study,we design a double-layer epoxy com.osite coating on m. alloy with.enh.nced anti-corrosion/wear properties,via th. spin-assisted assem.ly *** outer layer is functionalized graph.ne(FG)in waterborne epoxy resin(WEP)and th. inner layer is Ce-based conversion(Ce)*** FG sh.ets can be h.m.geneously dispersed with.n th. epoxy m.trix to fill th. intrinsic defects and im.rove th. barrier *** Ce film.connects th. outer layer with.th. substrate,sh.wing th. transition *** corrosion rate of Ce/WEP/FG com.osite coating is 2131 tim.s lower th.n th.t of bare m. alloy,and th. wear rate is decreased by~90%.Th. im.roved corrosion resistance is attributed to th. labyrinth.effect(h.ndering th. penetration of corrosive m.dium.and th. obstruction of galvanic coupling *** synergistic effect derived from.th. FG sh.et and blocking layer exh.bits great potential in realizing th. im.rovem.nt of m.lti-functional integration,wh.ch.will open up a new avenue for th. developm.nt of novel com.osite protection coatings of m. alloys.

关键词： m. alloy Functionalized graph.ne Epoxy coating Corrosion/wear resistance Blocking layer

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