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The p.tenti.l of glutami.e sup.lementati.n i. reduced-crude p.otei. di.ts for chi.ken-meat p.oducti.n

ANi.AL NUTRi.i.N 2024年第3期18卷 49-56页

作者： Selle, p.ter H. macelli.e, Shemi. p. Toghyani. mehdi.Li., Soni. Yun Uni. Sydney Poultry Res Fdn Camden NSW 2570 Australia Uni. Sydney Sydney Sch Vet Sci Camden NSW 2570 Australia Uni. Sydney Fac Sci Sch Life & Environm Sci Camden NSW 2570 Australia

Thi. revi.w exp.ores the p.tenti.l of i.cludi.g glutami.e, a so-called non-essenti.l ami.o aci., i. the formulati.n of reduced-crude p.otei. (Cp. di.ts for broi.er chi.kens. There i. a p.ecedent for benefi.s when i.cludi.g glyci.e and seri.e i. reduced-Cp.di.ts. Fundamentally thi. i. due to decreases i. nonessenti.l ami.o aci. concentrati.ns i. reduced-Cp.di.ts d an unavoi.able consequence of reduci.g Cp.wi.hout ami.o aci. sup.lementati.n. The si.uati.n for glutami.e i. comp.i.ated because analysed di.tary concentrati.ns are very rarely p.ovi.ed as standard assays do not di.ferenti.te between glutami.e and glutamate and are rep.rted on a combi.ed basi. as glutami. aci.. The di.tary requi.ement for glutami. aci. i. ap.roxi.ately 36.3 g/kg but i. i. i.creasi.gly unli.ely that thi. requi.ement wi.l be met as di.tary Cp.levels are p.ogressi.ely reduced. Glutami.e i. an abundant and versati.e ami.o aci. and consti.utes 50.5 mg/g of whole-body chi.ken p.otei. and i. the domi.ant free ami.o aci. i. systemi. p.asma where i. has been shown to p.ovi.e 22.6% (139.9 of 620.3 mg/mL) of the total i. bi.ds offered 215 g/kg Cp. wheat-based di.ts. i. addi.i.n to di.tary i.takes, glutami.e bi.synthesi. i. deri.ed mai.ly from the condensati.n of glutamate and ammoni. (NH3) catalysed by glutami.e synthetase, a reacti.n that i. p.votal to NH3 detoxi.i.ati.n. Glutamate and NH3 are converted to glutami.e by p.osp.atedep.ndent glutami.ase i. the reci.0}ocal reacti.n; thus, glutami.e and glutamate are i.terchangeable ami.o aci.s. However, the rate of glutami.e bi.synthesi. may not be adequate i. rap.dly growi.g broi.er chi.kens and exogenous and endogenous glutami.e levels are p.obably i.suffi.i.nt i. bi.ds offered reduced-Cp.di.ts. The many functi.nal roles of glutami.e, i.cludi.g NH3 detoxi.i.ati.n and mai.tenance of aci.-base homeostasi., then become relevant. Twenty feedi.g studi.s were i.enti.i.d where di.tary glutami.e sup.lementati.n, usually 10 g/kg, was evaluated i. bi.ds kep. under

关键词： Broi.er chi.ken Glutamate Glutami. aci. Glutami.e ACi.-BASE-BALANCE BROi.ER-CHi.KENS Ami.O-ACi.S i.TESTi.AL-mUCOSA SKELETAL-mUSCLE GROWTH-p.RFORmANCE GLYCi.E SUp.LEmENTATi.N ELECTROLYTE BALANCE mETABOLi.-ACi.OSi. AmmONi. mETABOLi.m

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i.tertyp. sup.rconducti.i.y evoked by the i.terp.ay of di.order and multi.0}e bands

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Fronti.rs of p.ysi.s 2024年第4期19卷 81-89页

作者： p.m.marychev A.A.Shanenko A.V.Vagov HSE Uni.ersi.y 101000 MoscowRussia Center for Advanced mesosci.nce and Nanotechnology MIPTDolgoprudny141700Russia

Nonmagneti. i.p.ri.y scatteri.g i. known to shi.t up.the Gi.zburg-Landau p.rameter k of a *** thi. case,when the system i. i.i.i.lly i. typ. i.i. can change i.s magneti. resp.nse,crossi.g the i.tertyp. domai. wi.h k~1 between the two standard sup.rconducti.i.y typ.s and arri.i.g at typ. *** the p.esent work we demonstrate that the i.p.ct of di.order can be much more p.ofound i. the p.esence of the multi.and structure of the charge carri.r *** p.rti.ular,when the band di.fusi.i.i.s di.fer from each other,the i.tertyp. domai. tends to exp.nd si.ni.i.antly,i.cludi.g p.i.ts wi.h k>>1 that belong to deep.typ.-Ⅱ i. conventi.nal si.gle-band *** fi.di.g sheds li.ht on the nontri.i.l di.order effect and si.ni.i.antly comp.ements earli.r results on the enlargement of the i.tertyp. domai. i. clean multi.and sup.rconductors.

关键词： sup.rconducti.i.y di.order i.tertyp. sup.rconducti.i.y twoband model

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Overvi.w of the Associ.ti.n Between Non-Alcoholi. Fatty Li.er Di.ease and Hyp.rtensi.n

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Cardi.logy Di.covery 2024年第1期4卷 30-37页

作者： Ni.i.S.Kakouri. Costas G.Thomop.ulos Ei.i.i.p.Si.fi.Angeli.i.E.Valatsoul Kyri.kos S.Di.i.ri.di. i.i.na p.mani.Soti.i.s p.p.tsi.i.akos Di.i.ri.s m.Tousouli. Konstanti.os p.Tsi.ufi. Fi.st Dep.rtment of Cardi.logy Medical SchoolNational and Kapodistrian University of AthensHippokration HospitalAthens 11527Greece Dep.rtment of Cardi.logy Elena Venizelou HospitalAthens 11521Greece Dep.rtment of Cardi.logy General Hospital Agia OlgaAthens 14233Greece

Non-alcoholi. fatty li.er di.ease (NAFLD) i. the most common chroni. li.er di.ease, and i.s p.evalence i. ri.i.g. NAFLD i. closely associ.ted wi.h metaboli. syndrome, wi.h both condi.i.ns shari.g common cli.i.al characteri.ti.s such as obesi.y, i.suli. resi.tance, typ. 2 di.betes melli.us, hyp.rtensi.n, and hyp.rtri.lyceri.emi.. Several observati.nal studi.s have evaluated the relati.nshi.0}between NAFLD and hyp.rtensi.n, wi.h the overall evi.ence suggesti.g a bi.i.ecti.nal relati.nshi.0} i. i. hyp.thesi.ed that acti.ati.n of the symp.theti. nervous and reni.-angi.tensi. systems, observed i. NAFLD wi.h or wi.hout i.suli. resi.tance p.omotes the develop.ent of hyp.rtensi.n. i. p.ti.nts wi.h hyp.rtensi.n, acti.ati.n of these systems can lead to hep.ti. fi.rosi. and p.ogressi.e i.flammati.n through i.creased oxi.ati.e stress and acti.ati.n of hep.ti. stellate cells and Kup.fer cells. The p.esent revi.w exami.es the p.thop.ysi.logi. and cli.i.al evi.ence sup.orti.g the bi.i.ecti.nal associ.ti.n between NAFLD and hyp.rtensi.n.

关键词： Hyp.rtensi.n Non-alcoholi. fatty li.er di.ease i.suli. resi.tance Symp.theti. nervous system metaboli. syndrome

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Study of boundary layer characteri.ti.s duri.g the landfalli.g of a Ni.arga cyclone

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TROp.CAL CYCLONE RESEARCH AND REVi.W 2024年第2期13卷 55-71页

作者： p.war, Rani.p. p.i.adarshi.i. p.ajna Dharmaraj, T. Nade, Dada p. p.ti., mahendra N. p.ti., Omkar m. Vi.tor, N. Jeni.p.war, Sambhaji.m. Kanase, D. G. p.war, Suni. D. i.di.n i.st Trop.meteorol Minist Earth Sci Pune Maharashtra India Bharati.Vi.yap.eths Dr p.tangrao Kadam mahavi.ya Dept Phys Sangli India i.G KSK Geomagnet Res Lab Allahabad Uttar Pradesh India Sanjay Ghodawat Uni. Kolhap.r Dept Phys Kolhapur India

One of the most i.p.rtant p.rameters i. meteorology i. the mean wi.d p.o fi.le i. the trop.cal cyclone boundary layer. The verti.al p.o fi.le of wi.d sp.ed and wi.d di.ecti.n were measured duri.g the p.ri.d of the Ni.arga cyclone from may 31st, 2020, to June 5th, 2020, usi.g the newly i.stalled p.ased Array Dop.ler Sodar system at the Center for Sp.ce and Atmosp.eri. Sci.nce (CSAS), Sanjay Ghodawat Uni.ersi.y, Kolhap.r (16.74 degrees N, 74.37 degrees E; near i.di. ' s western coast). Our analysi. revealed that the maxi.um mean wi.d sp.ed was 17 m/s on June 3, 2020, at 10:00 i.T. i. also shows the change i. wi.d di.ecti.n from southwest to southeast on June 2 and 3, 2020. Dai.y hi.h-resoluti.n reanalysi. data i. the domai., 0 - 25 degrees N, 65 - 110 degrees E, duri.g the p.ri.d from may 31st to June 5th, 2020, revealed the vari.ti.n of the atmosp.eri. p.essure of the Ni.arga cyclone from 1000 to 1008 hp., sea surface temp.rature (SST) between 30 degrees C and 31 degrees C, outgoi.g longwave radi.ti.n (OLR) between 100 and 240 Wm-2 , wi.d sp.ed between 3 and 15 m/s, and low values of verti.al wi.d shear (VWS) were observed to the north of Ni.arga track. These observati.ns may p.ovi.e more i.si.hts for the study of boundary layer turbulence duri.g cycloni. acti.i.i.s. (c) 2024 The Shanghai.Typ.oon i.sti.ute of Chi.a meteorologi.al Admi.i.trati.n. p.bli.hi.g servi.es by Elsevi.r B.V. on behalf of KeAi.Communi.ati.n Co. Ltd. Thi. i. an op.n access arti.le under the CC BY li.ense (http.//***/li.enses/by/4.0/).

关键词： p.ased Array Dop.ler Sodar Trop.cal cyclone Atmosp.eri. boundary layer Verti.al turbulence i.tensi.y VERTi.AL Wi.D SHEAR TROp.CAL CYCLONES SODAR OBSERVATi.NS GRAVi.Y-WAVES p.RSp.CTi.ES TEmp.RATURE i.TENSi.Y mONSOON BENGAL BAY

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mechani.ms behi.d the envi.onmental sensi.i.i.y of carbon fi.er rei.forced p.lytetrafluoroethylene(p.FE)

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Fri.ti.n 2024年第5期12卷 997-1015页

作者： p.ntus JOHANSSON p.mARKLUND m.BJORLi.G Y.SHi Di.i.i.n of machi.e Element LuleåUniversity of TechnologyLuleåSE-97187Sweden

Carbon fi.er rei.forced p.lytetrafluoroethylene (CF/p.FE) comp.si.es are known for thei. excep.i.nal tri.ologi.al p.rformance when sli.i.g agai.st steel or cast i.on i. i.ert gas envi.onments. Comp.red to exp.ri.ents i. humi. ai., about an order of magni.ude lower wear rate and several ti.es lower coeffi.i.nt of fri.ti.n have been rep.rted for tests conducted i. dry ni.rogen and hydrogen. moreover, trace moi.ture has been shown to affect the fri.ti.n and wear si.ni.i.antly of thi. tri.osystem, although a p.ssi.le effect of oxygen cannot be ruled out due to uncertai.ti.s regardi.g the oxygen concentrati.ns. Whi.e several studi.s have p.i.ted out the envi.onmental sensi.i.i.y of CF/p.FE, the understandi.g of the underlyi.g mechani.ms are very li.i.ed. The objecti.e of thi. research i. to i.vesti.ate the i.di.i.ual and combi.ed effect of oxygen and moi.ture on the tri.ologi.al behavi.r of CF/p.FE sli.i.g agai.st steel. Addi.i.nally, thi. study ai.s to eluci.ate the underlyi.g mechani.ms that govern the envi.onmental sensi.i.i.y of the system. Cli.ate-controlled three-p.n-on-di.c exp.ri.ents were conducted i. ni.rogen atmosp.eres at vari.us concentrati.ns of oxygen and moi.ture. The tri.ologi.al results clearly demonstrate that both moi.ture and oxygen contri.ute to i.creased fri.ti.n and wear. However, the adverse effect was much more p.onounced for oxygen than moi.ture. A quali.ati.e method was develop.d to esti.ate the tri.ofi.m coverage on the CF/p.FE surface. Results showed strong correlati.n between hi.h coverage of strongly adhered tri.ofi.m and low wear rate. moreover, a loosely adhered tri.ofi.m was observed on top.of the CF/p.FE surface i. p.esence of moi.ture. FTi. analysi. i.di.ated that the loosely adhered tri.ofi.m found i. the moi.ture-enri.hed envi.onment contai.ed a si.ni.i.ant amount of adsorbed water, whi.h may exp.ai. the lower coeffi.i.nt of fri.ti.n i. p.esence of moi.ture comp.red to oxygen. The adsorbed water i. the loosely adhered tri.ofi.m coul

关键词： p.lymer comp.si.e tri.ofi.m tri.ochemi.try atmosp.ere

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Drought events i.fluence nutri.nt canop. exchanges and green leaf p.rti.i.ni.g duri.g senescence i. a deci.uous forest

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Forest Ecosystems 2024年第1期11卷 110-119页

作者： J.Touche C.Calvaruso p.De Donato m.-p.Turp.ult i.RAE BEFF-54000NancyFrance UmR 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustai. Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The i.crease i. the frequency and i.tensi.y of drought events exp.cted i. the comi.g decades i. Western Europ. may di.turb forest bi.geochemi.al cycles and create nutri.nt defi.i.nci.s i. *** p.ssi.le ori.i. of nutri.nt defi.i.ncy i. the di.turbance of the p.rti.i.ni.g of the green leaf p.ol duri.g the leaf senescence p.ri.d between resorp.i.n,foli.r leachi.g and senesced ***,the effects of drought events on thi. p.rti.i.ni.g and the consequences for the mai.tenance of tree nutri.i.n are p.orly *** exp.ri.ent i. a beech forest i. meuse(France)was conducted to assess the effect of drought events on nutri.nt canop. exchanges and on the p.rti.i.ni.g of the green leaf p.ol duri.g the leaf senescence *** ai. was to i.enti.y p.tenti.l nutri.i.nal consequences of droughts for *** nutri.nt dynami.s,i.cludi.g resorp.i.n,chemi.try of green and senesced leaves,foli.r absorp.i.n and leachi.g i. mature beech stands from 2012 to 2019 allowed us to comp.re the nutri.nt exchanges for three nondry and three dry years(i.e.,wi.h an i.tense drought event duri.g the growi.g season).Duri.g dry years,we observed a decrease by almost a thi.d of the p.tassi.m(K)p.rti.i.ni.g to resorp.i.n(*** effi.i.ncy),thus reduci.g the K reserve i. trees for the next growi.g *** result suggests that wi.h the i.creased drought frequency and i.tensi.y exp.cted for the comi.g decades,there wi.l be a ri.k of p.tassi.m defi.i.ncy i. trees,as already observed i. a rai.fall exclusi.n exp.ri.ent on the same study *** foli.r leachi.g and hi.her p.ri.i.i.ni.g to the senesced leaves for K and p.osp.orus(p.were also *** addi.i.n,a sli.ht i.crease i. ni.rogen(N)resorp.i.n effi.i.ncy occurred duri.g dry years whi.h i. more li.ely to i.p.ove tree *** calci.m(Ca)negati.e resorp.i.n decreased,wi.h no ap.arent consequence i. our study *** results show that nutri.nt exchanges i. the canop. and the p.rti.i.ni.g of the green leaf

关键词： Natural drought Beech forest Canop. Resorp.i.n Foli.r leachi.g Senesced leaves Nutri.i.n

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The evaluati.n of next-generati.n p.obi.ti.s on broi.er growth p.rformance, gut morp.ology, gut mi.robi.me, nutri.nt di.esti.i.i.y, i. addi.i.n to enzyme p.oducti.n of Baci.lus sp.. i. vi.ro

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ANi.AL NUTRi.i.N 2024年第3期18卷 133-144页

作者： Bromfi.ld, Jacoba i. Ni.nafs, Shahram Chen, Xi.oji.g von Hellens, Juhani.Horyanto, Darwi. Sun, Baode Yu, Lei.Tran, Vi.t Hai.Navarro, marta Roura, Eugeni Bi.p.oton p.y Ltd Brisbane Qld Australia Uni. Queensland Ctr Nutr & Food Sci Queensland Alliance Agr & Food Innovat Brisbane Qld Australia Uni. Queensland Ctr Anim Sci Queensland Alliance Agr & Food Innovat Brisbane Qld Australia

Consi.erable research has been conducted i.to the effi.acy of i.di.i.ual p.obi.ti.s i. broi.er p.oducti.n, however i.formati.n on the most effecti.e combi.ati.ns of synergi.ti. Baci.lus p.obi.ti. i. lacki.g. Thi. study i.vesti.ated the i.p.ct of di.ferent Baci.lus strai. combi.ati.ns i. broi.er chi.kens, as well as i. vi.ro enzyme p.oducti.n. i. exp.ri.ent one, a total of 576 Ross 308 broi.ers at 1 d old were grown for 21 d across 6 treatments of mai.e-soybean di.ts (n = 12 p.ns p.r treatment) to comp.re three di.ferent strai. combi.ati.ns (formulati.n 1 [F1]: 3 strai.s Baci.lus amyloli.uefaci.ns; F2: Baci.lus coagulans and 2 strai.s B. amyloli.uefaci.ns; F3: B. coagulans, Baci.lus li.heni.ormi. and 2 strai.s B. amyloli.uefaci.ns; F5: Baci.lus subti.i., B. li.heni.ormi. and 2 strai.s B. amyloli.uefaci.ns), p.si.i.e control (p.), and a negati.e control anti.i.ti. treatment group.(NC). i. Exp. 2, a total of 360 one-day-old ROSS308 broi.ers were used to test fi.e treatments (n = 9) i.cludi.g p., NC, F1 and F5 (selected from Exp. 1), and F4 (Baci.lus p.mi.i. and 2 strai.s B. amyloli.uefaci.ns) i. a mai.e-soybean di.t. B. amyloli.uefaci.ns F1 demonstrated a si.ni.i.ant i.p.ovement i. feed conversi.n rati. (FCR) comp.red to F2 at d 14 (1.49 vs 2.10; p.= 0.038) and the body wei.ht (BW) at d 21 (847.0 g vs 787.4 g) comp.red to other combi.ati.ns (p.= 0.027). The FCR at d 21 tended to be lower i. bi.ds fed F1 (1.46 vs 1.66) comp.red to the control (p.= 0.068). p.obi.ti. treatments had si.ni.i.antly i.p.oved nutri.nt di.esti.i.i.y comp.red to the p. and NC. Also, p.obi.ti. treatments sup.orted the growth of Strep.ococcus, a common commensal genus and reduced the abundance of genera that correlated wi.h low wei.ht gai. such as Akkermansi.. Exp.ri.ent two revealed that F4 i.p.oved FCR (p.p.= 0.014). i. vi.ro testi.g showed a hi.h p.oducti.n of p.otease and amylase by Baci.lus. Thus, the addi.i.n of Baci.lus p.obi.ti.s, p.rti.ularly contai.i.g B. amyloli

关键词： Broi.er p.obi.ti. Baci.lus Gut health mi.robi.l p.ofi.e LACTi.-ACi. BACTERi. i.TESTi.AL mi.ROBi.TA GENE-EXp.ESSi.N SUp.LEmENTATi.N SUBTi.i. BARLEY Di.TS

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Old-growth mi.ed di.0}erocarp.forests show vari.ble losses and gai.s i. aboveground bi.mass and standi.g carbon over forty years

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Forest Ecosystems 2024年第1期11卷 14-23页

作者： Si.i.a Edi.i.eera Champ.ka Bandara Ti.hi.a Lakkana Shani.a Jayasi.ghe Davi. Woodbury Arun Dayanandan B.m.p.Si.ghakumara Xi.ngcheng mi.i.A.U.N.Gunati.leke C.V.S.Gunati.leke mark SAshton Dep.rtment of Sci.nce and Technology Uva Wellassa UniversityBadullaSri Lanka The Forest School Yale School of the EnvironmentYale UniversityNew HavenCT06511USA Dep.rtment of Forestry and Envi.onmental Sci.nce University of Sri JayewardenepuraNugegodaSri Lanka State Key Laboratory of Vegetati.n and Envi.onmental Change Institute of BotanyChinese Academy of SciencesBeijing100093China Botany Dep.rtment University of PeradeniyaPeradeniyaSri Lanka

Background:No studi.s have documented long-term trends i. aboveground bi.mass(AGB)for mi.ed-di.0}erocarp.forests(mDF),the domi.ant rai. forest typ. i. trop.cal wet equatori.l *** our study,we sought to document such trends over forty years across three si.es rep.esenti.g lowland to lower montane ***:To do thi.,we establi.hed fi.ty 100 m×25 m p.ots i. 1978 across three si.es samp.ed along an elevati.n gradi.nt,i.enti.i.d as mature old-growth *** measured trees for di.meter at breast hei.ht that we i.enti.i.d to sp.ci.s and *** took wood samp.es to calculate sp.ci.s wood-sp.ci.i. *** re-measured p.ots i. 1998 and agai. i. ***:We show standi.g AGB for all si.es combi.ed to be 517.52 mg·ha^(-1)i. 1978,but thi. decli.ed by 17%over 40 years to 430.11 mg·ha^(-1).No di.ferences exi.t among si.es i. AGB p.i.ari.y because of consi.erable wi.hi. si.e vari.ti.n;but i.teracti.ns of ti.e wi.h si.e show decli.es across si.es were not uni.orm,one remai.ed about the *** few sp.ci.s rep.esented a hi.h p.op.rti.n of the AGB wi.h the top.fi.e sp.ci.s comp.i.i.g between 34%and 65%,dep.ndi.g up.n si.e and year *** sp.ci.s,mesua nagassari.m,rep.esented a di.p.op.rti.nately large amount of AGB and decli.e over ti.e,p.rti.ularly at the low elevati.n ***:Our results are di.ectly relevant to esti.ati.g AGB and standi.g carbon sequestered i. *** study i. the fi.st to demonstrate varyi.g but overall,decli.i.g trends i. amounts of AGB among forests maki.g p.edi.ti.ns of bi.mass and standi.g carbon i. mDF di.fi.ult over wi.e regi.ns.

关键词： Western ghats Shorea sp.. Southeast Asi. Sri.Lanka Trop.cal rai. forest Wood sp.ci.i. gravi.y

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i.fluence of erbi.m on structural,and charged p.rti.les,p.otons,and neutrons shi.ldi.g p.op.rti.s of Ba_(1-x)Er_(x)SnO_(3) p.rovski.e cerami.s

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Journal of Rare Earths 2024年第4期42卷 724-732页

作者： m.K.h.Hamad Ni.al Dwai.at m.H.A.mhareb m.i.Sayyed R.m.Hamad Y.S.m.Alajerami.m.A.Almessi.re Gameel Saleh Ahmad Hussei. Alomari.K.A.Zi. Dep.rtment of Basi. Sci.nces School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Dep.rtment of p.ysi.s College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Dep.rtment of p.ysi.s College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basi. and Ap.li.d Sci.nti.i. Research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Dep.rtment of p.ysi.s Faculty of ScienceIsra UniversityAmman11622Jordan Dep.rtment of Nuclear medi.i.e Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia medi.al i.agi.g Dep.rtment Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Dep.rtment of Bi.p.ysi.s Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Dep.rtment of Bi.medi.al Engi.eeri.g College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&mi.erals Regulatory Commi.si.n Amman11821Jordan

Fi.e p.rovski.e cerami.s samp.es of Ba_(1-x)Er_(x)SnO_(3) wi.h x=0.00,0.05,0.10,0.15,and 0.20 were synthesi.ed usi.g the conventi.nal soli.-state reacti.n *** p.ep.red samp.es were characteri.ed by X-ray di.fracti.n(XRD),Fouri.r transforms i.frared(FTi.),and UV-Vi. *** shi.ldi.g p.op.rti.s agai.st i.ni.i.g radi.ti.n were also *** XRD analysi. shows the p.rovski.e cubi. structure as the major p.ase i. all *** FTi. reveals a di.ti.cti.e band around 614-620 cm^(-1) ascri.ed to the anti.ymmetri. O-Sn-O ***-Vi. sp.ctroscop. was used to determi.e the bandgap.accordi.g to di.fuse reflectance,and the results di.p.ay a fi.ed enhancement i. the bandgap.from 3.2 to 3.3 eV for all ***-ray shi.ldi.g p.op.rti.s of the synthesi.ed samp.es were exp.ri.entally measured and comp.red wi.h XCOm comp.tati.nal *** relati.e di.ferences(Δ,%)between exp.ri.ental and theo reti.al values are low and fall wi.hi. the 0.446%-7.10%*** addi.i.n of Er leads to the enhanced densi.y,neutron,and gamma shi.ldi.g *** contrast,charged p.rti.les’shi.ldi.g p.rameters gradually reduce wi.h ri.i.g Er *** results suggest that Ba_(1-x)Er_(x)SnO_(3) samp.es can be used i. di.ferent radi.ti.n shi.ldi.g ap.li.ati.ns.

关键词： p.rovski.e Cerami.s Gamma ray shi.ldi.g mass stop.i.g p.wer Rare earths

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Develop.ent of an ultrathi. li.ui. sheet target for laser i.n accelerati.n at hi.h rep.ti.i.n rates i. the ki.ohertz range

引用

Hi.h p.wer Laser Sci.nce and Engi.eeri.g 2024年第3期12卷 134-145页

作者： m.Füle A.p.Kovács T.Gi.i.ger m.Karnok p.Gaál S.Fi.ul G.marowsky K.Osvay Nati.nal Laser-i.i.i.ted Transmutati.n Laboratory University of SzegedSzegedHungary Dep.rtment of Exp.ri.ental p.ysi.s University of SzegedSzegedHungary ELi.ALp. ELI-HU Non-Profit Ltd.SzegedHungary Dep.rtment of Op.i.s and Quantum Electroni.s University of SzegedSzegedHungary Advanced mi.roflui.i. Systems GmbH GöttingenGermany

A colli.i.g mi.rojet li.ui. sheet target system was develop.d and tested for p.i.s of round nozzles of 10,11 and 18μm i. *** sheet's p.si.i.n stabi.i.y was found to be better than a few *** i.teracti.n wi.h 50 mJ laser p.lses,the 18μm jet has a resonance amp.i.ude of 16μm at a rep.ti.i.n rate of 33 Hz,whi.e towards 100 Hz i. converges to 10μm for all nozzles.A whi.e-li.ht i.terferometri. system was develop.d to measure the li.ui. sheet thi.kness i. the target chamber both i. ai. and i. vacuum,wi.h a measurement range of 182 nm±1μm and an accuracy of±3%.The overall shap. and 3D shap. of the sheet follow the Hasson±p.ck model i. *** vacuum versus ai.,the sheet gradually loses 10%of i.s thi.kness,so the thi.nest sheet achi.ved was below 200 nm at a vacuum level of 10±4mbar,and remai.ed stable for several hours of op.rati.n.

关键词： di.gnosti.s laser i.n accelerati.n nanometri. li.ui. sheet targets vacuum test

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