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Correlat.on bet.een p.asmid DNA damage induced by p._(10) and t.ace met.ls in inhalable p.rt.culat. mat.ers in Beijing air

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Science China Eart. Sciences 2006年第12期49卷 1323-1331页

作者： t. p. jones L. Merolla R. J. Richard Dep.rt.ent.of Eart. Ocean and Planetary Sciences Cardiff UniversityCardiff CF10 3YE UK School of Biosciences Cardiff University PO Box 911 Cardiff CF10 3US UK

Based on t.e st.dy of Beijing p.10 bioreact.vit. wit. t.e newly develop.d p.asmid DNA assay met.od, and analysis for t.ace element. of p.10, t.e cause of p.asmid DNA damage by p.10 was invest.gat.d. t.e st.dy showed t.at.p.asmid DNA oxidat.ve damages by p.10 are of difference in different.seasons at.various areas. t.e concent.at.ons of t.50 of p.10 in whole samp.es resp.ct.vely collect.d at.urban and comp.rison sit.s during wint.r were 900 μg mL?1 and 74 μg mL?1, while t.ose in t.eir corresp.nding soluble fract.ons were 540 μg mL?1 and 86 μg mL?1. In cont.ast. t.50 cont.nt. of p.10 from summer whole samp.es at.urban areas and comp.rison sit.s were 116 μg mL?1 and 210 μg mL?1, whereas t.ose in t.eir soluble fract.ons were 180 μg mL?1 and 306 μg mL?1. t.e difference of bioreact.vit. of Beijing p.10 result.d from t.e variat.on of t.ace element.. t.e oxidat.ve damage of p.asmid DNA caused by p., Zn, As in p.10 (whole samp.e) was relat.vely st.ong. t.50 and Mn, V, Zn disp.ay st.onger correlat.on in t.e soluble fract.on. It.imp.ies t.at.Zn could be t.e major t.ace element.in Beijing p.10 which cont.ibut.s t. oxidat.ve damage t. p.asmid DNA.

关键词： Beijing p.10 t.ace met.ls correlat.on healt. effect.

Develop.ent.of endemicit. and conservat.on imp.rt.nce indices for t.op.cal forest. and t.e floral diversit. assessment.of *** in Benguet.p.ilip.ines

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Journal of Mount.in Science 2024年第3期21卷 786-804页

作者： Johndale Rein t.BULLONG Jim p.SILVERIO Joanna I.ALAFAG Maricel A.GURON jones t.NAp.LDEt Dep.rt.ent.of Environment.l Science Benguet State UniversityLa Trinidad 2601Philippines Dep.rt.ent.of Biology Benguet State UniversityLa Trinidad 2601Philippines

t.e scient.fic communit. faces t.e challenge of measuring p.ogress t.ward biodiversit. t.rget. and indices have been t.adit.onally ***,recent.invent.ries in secondary t.op.cal mount.in forest. using t.adit.onal biodiversit. indices have yielded result. t.at.are indist.nct.wit. p.imary *** shows t.e need t. develop.comp.ement.ry indices t.at.goes beyond sp.cies count.but.int.grat.s t.e dist.ibut.on and conservat.on st.t.s of t.e *** st.dy develop.d endemicit. and conservat.on imp.rt.nce index for t.op.cal forest.t.at.incorp.rat.d t.e dist.ibut.on and conservat.on st.t.s of t.e *** indices were ap.lied t. ***,a remnant.p.imary mossy forest.in Buguias,Benguet.p.ilip.ines,t.at.result.d t. endemicit. index of 81.07 and conservat.on imp.rt.nce index of *** t.ese wit. secondary forest.sit.s wit. comp.rable Shannon-Wiener,Simp.on,Evenness and Margalef’s indices,our endemicit. and conservat.on indices clearly different.at.s p.imary forest.our st.dy sit.)wit. higher values from secondary forest. wit. much lower ***,we are p.op.sing t.ese indices for a direct.but.scient.fically-informed ident.ficat.on of sp.cific sit.s for conservat.on and p.ot.ct.on in t.op.cal ***,our st.dy document.d a t.t.l of 168 vascular p.ant.sp.cies(79 endemic and 12 locally t.reat.ned sp.cies)in *** are of t.op.cal element. for bot. generic and sp.cies levels wit. some t.mp.rat. element. t.at.could be at.ribut.d t. t.e sit.'s high elevat.on and semi-t.mp.rat. *** are imp.rt.nt.baseline informat.on for conservat.on p.ans and monit.ring of t.op.cal mossy forest..

关键词： Endemicit. index Conservat.on imp.rt.nce index Cordillera Cent.al Range Florist.c element Jaccard Index of Similarit.

Flame St.uct.re of Met.ane and Kerosene Combust.on wit. a Comp.ct.Concave Flame-Holder using t.e LES-p.f Met.od

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Journal of t.ermal Science 2024年第1期33卷 222-234页

作者： WANG Fang WANG Yunfan WEI Guanyi LIU Denghuan JIN Jie jones p.William School of Energy and p.wer Engineering Beihang UniversityBeijingBeijing 100191China Dep.rt.ent.of Mechanical Engineering Imperial College LondonLondon SW72AZUK

Comp.ct.flame-holders for aft.rburners are an increasing requirement.for modern aero ***,flame-holder design is non-t.ivial since high inlet.t.mp.rat.res,velocit.es,and elaborat. st.uct.res induce comp.ex t.rbulence,combust.on,and sp.ay coup.ing in modern *** t.is work,t.e LES-p.f and st.chast.c fields-Lagrangian p.rt.cle sp.ay met.ods are used t. invest.gat. met.ane and aviat.on kerosene combust.on st.uct.res formed by new-t.p. concave *** flow p.t.ern,combust.on mode,and flame st.uct.re of gaseous and liquid fuel around a concave flame-holder are analyzed,discussed,and comp.red wit. exp.riment.l *** reveal t.at.t.e flame st.bilit. of a concave flame-holder is bet.er t.an t.at.of t.e non-concave ***,when using liquid fuel,t.e concave flame-holder forms a st.ble and comp.ct.*** result. suggest.concave flame-holders are a p.omising design for comp.ct.aft.rburners.

关键词： concave st.uct.re flame-holder LES-p.f sp.ay combust.on flame st.uct.re AECSC

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可编程多物理机制的力学超材料

力学进展 2024年

作者： p.Sinha t.Mukhop.dhyay 印度理工学院航空工程系英国南安普顿大学工学院

力学超材料是一种有别于传统力学行为的工程材料，它源于人工可编程的微结构以及材料的固有属性。在过去的十年中，随着计算性能和复杂微观结构制造能力的巨大进步，力学超材料已经吸引了研究人员的广泛关注，因为它能够实现自然界中不... 详细信息

力学超材料是一种有别于传统力学行为的工程材料，它源于人工可编程的微结构以及材料的固有属性。在过去的十年中，随着计算性能和复杂微观结构制造能力的巨大进步，力学超材料已经吸引了研究人员的广泛关注，因为它能够实现自然界中不可能出现的多重物理属性。该领域迅速崛起的趋势之一是将材料行为和单元结构与其他不同的多种物理因素(如电场或磁场)以及温度、光或化学反应等刺激相结合，从而扩大按需主动调制力学响应的范围。在本文中，我们旨在概述有关超材料的力学和多物理性质调制的相关文献，重点介绍双能级设计的新兴趋势，着重讨论力学超材料在关键工程领域应用中的巨大潜力。本文对该领域的发展趋势、挑战和未来路线进行了系统深入分析，涵盖实时可重构性和功能编程、4D打印、纳米超材料、人工智能和机器学习、多物理折纸/剪纸、活性物质、软物质和保形超材料、复杂微结构制造、服役寿命效应和可扩展性等概念。

关键词：力学超材料按需特性调制多物理力学可编程物质双级点阵主动超材料刺激响应材料

Hydrot.ermal t.eat.ent.of p.arl millet.grains:Effect. on nut.it.onal comp.sit.on,ant.nut.ient. and flour p.op.rt.es

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Grain & Oil Science and t.chnology 2024年第2期7卷 87-95页

作者： p.p.ashant. t.Jayasree Joshi Shagolshem Mukt. Singh p.Srinivasa Rao Agricult.ral and Food Engineering Dep.rt.ent Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India

p.arl millet.p.nniset.m glaucum)is one of t.e major millet. wit. high nut.it.onal *** crop.exhibit. excep.0}onal resilience t. drought.and high ***,t.e p.ocessing of p.arl millet.p.ses a significant.challenge due t. it. high lip.d cont.nt.enzyme act.vit.,and p.esence of ***,it.becomes imp.rat.ve t. enhance t.e qualit. and p.olong t.e shelf life of p.arl millet.flour by emp.oying suit.ble *** t.eat.ent.in t.e food indust.y has long been seen as p.omising due t. it. p.t.nt.al t. reduce microbial load,inact.vat. enzymes,and imp.ove nut.ient.*** st.dy aims t. invest.gat. t.e effect. of hydrot.ermal t.eat.ent.on t.e qualit. charact.rist.cs of p.arl *** indep.ndent.variables of t.e st.dy were soaking t.mp.rat.re(35,45,55℃),soaking t.me(2,3,4 h),and st.aming t.me(5,10,15 min).t.eat.ent.condit.ons had a st.t.st.cally significant.effect.on nut.ient.*** ant.nut.ient. like t.nnins and p.yt.t.s were reduced by 0.99% t. 5.94% and 0.36% t. 6.00%,resp.ct.vely,aft.r t.e *** act.vit. decreased significant.y up.t. 10% wit. t.e t.eat.ent.*** findings of t.is st.dy could p.t.nt.ally encourage t.e use of p.arl millet.flour in t.e p.oduct.on of various food it.ms and p.omot. t.e ap.licat.on of hydrot.ermal t.eat.ent.in t.e field of food p.ocessing.

关键词： p.arl millet Hydrot.ermal t.eat.ent Nut.it.onal p.op.rt.es Ant.nut.ient.

HI in High Gas-p.ase Met.llicit. Dwarf Galaxy WISEA J230615.06+143927.9

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Research in Ast.onomy and Ast.op.ysics 2024年第1期24卷 292-299页

作者： Yan Guo C.Sengup.0} t.C.Scot. p.Lagos Y.Luo p.rp.e Mount.in Observat.ry Chinese Academy of SciencesNanjing 210023China School of Ast.onomy and Sp.ce Sciences University of Science and Technology of ChinaHefei 230026China Inst.t.t. of Ast.op.ysics and Sp.ce Sciences(IA p.rt.) Rua das Estrelas4150-762PortoPortugal

We p.esent.resolved Giant.Met.ewave Radio t.lescop. H I observat.ons of t.e high gas-p.ase met.llicit. dwarf galaxy WISEA J230615.06+143927.9(z = 0.005)(hereaft.r J2306) and invest.gat. whet.er it.could be a t.dal Dwarf Galaxy(t.G) candidat.. t.Gs are observed t. have higher met.llicit.es t.an normal dwarfs. J2306 has an unusual combinat.on of a blue g-r color of 0.23 mag, irregular op.0}cal morp.ology and high-met.llicit.(12 +log(O/H) = 8.68 ± 0.14), making it.an int.rest.ng galaxy t. st.dy in more det.il. We find J2306 t. be an H I rich galaxy wit. a large ext.nded, unp.rt.rbed rot.t.ng H I disk. Using our H I dat. we est.mat.d it. dynamical mass and found t.e galaxy t. be dark mat.er(DM) dominat.d wit.in it. H I radius. t.e quant.t. of DM, inferred from it. dynamical mass, ap.ears t. rule out.J2306 as an evolved t.G. A wide area environment.search reveals J2306 t. be isolat.d from any larger galaxies which could have been t.e source of it. high gas met.llicit.. Addit.onally, t.e H I morp.ology and kinemat.cs of t.e galaxy show no indicat.on of a recent.merger t. exp.ain t.e *** det.iled op.0}cal sp.ct.oscop.c observat.ons of J2306 might.p.ovide an answer t. how a seemingly ordinary irregular dwarf galaxy achieved such a high level of met.l enrichment.

关键词： galaxies:abundances galaxies:dwarf galaxies:irregular radio lines:galaxies radio lines:ISM

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 imp.ct.of grain size,ranging from 0.9μm t. 9μm,on t.e mechanical p.op.rt.es of commercially p.re Mg is invest.gat.d at.t.mp.rat.res of 4K,78K,and *** mechanisms governing p.ast.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 p.omot. an unusually high rat. of work hardening in t.e p.ast.c regime,leading t. p.emat.re *** yield st.ess follows t.e Hall-p.t.h relat.onship._(y)∼k/√d,wit. t.e slop. k increasing wit. decreasing *** 298K,in addit.on t. dislocat.on glide and t.inning,grain boundary sliding(GBS)becomes significant.in samp.es wit. grain sizes below 3μm,considerably enhancing t.e mat.rial’s *** act.vat.on p.ovides an addit.onal recovery mechanism for dislocat.ons accumulat.ng at.grain boundaries,facilit.t.ng t.eir absorp.0}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 sup.resses dislocat.on act.vit. and t.inning and increases GBS,result.ng in lowerandσ*** convent.onal deformat.on modes coup.ed wit. enhanced GBS yields st.ess soft.ning,breaking down t.e Hall-p.t.h relat.onship.in Mg below 3μm grain size,leading t. an inverse Hall-p.t.h *** work rep.rt. 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.mp.rat.re regimes.

关键词： p.lycryst.lline Mg Mechanical p.op.rt.es Deformat.on mechanisms Work-hardening t.xt.re evolut.on Cryogenic t.mp.rat.res Hall-p.t.h relat.onship

Mult.-scale habit.t.influences sp.aint.ng and group.size of a freshwat.r-obligat. smoot.-coat.d ot.er(Lut.ogale p.rsp.cillat.) in t.ngabhadra Ot.er Conservat.on Reserve, India

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Ecological p.ocesses 2024年第1期13卷 159-175页

作者： Ankit.Moun p.Ramesh Kumar M.Malat.i p.iya t.Ramesh Riddhika Kalle Sálim Ali Cent.e for Ornit.ology and Nat.ral Hist.ry Dep.t. Conservat.r of Forest. Bellary Territorial Forest Division Dep.t. Conservat.r of Forest. Working Plan and Survey and Research WingBellary Territorial Forest Division Cent.e for Funct.onal Biodiversit. University of Kwa Zulu-Natal

Background t.e imp.ct.of changing land-use p.t.erns and associat.d ant.rop.genic t.reat. on scale-dep.ndent.habit.t.use of semi-aquat.c must.lids in scent.marking and social behaviour can p.ovide imp.rt.nt.insight. int. t.e habit.t.ecology of smoot.-coat.d ot.ers(Lut.ogale p.rsp.cillat.).Met.ods We samp.ed 180 st.eam segment.(100–400 m) as sp.t.al rep.icat.s of 60 1-km2 sit.s t. record indirect.evidence(i.e. sp.aint. and mass lat.ine sit.s) and group.sizes of smoot.-coat.d ot.ers along t.e t.ngabhadra Ot.er Conservat.on Reserve(t.CR) during t.e dry season. t. quant.fy habit.t. we recorded st.eam charact.rist.cs, rip.rian veget.t.on, and ant.rop.genic dist.rbances at.t.e local scale, and hydro-environment.l charact.rist.cs and land uses at.t.e landscap. scale. Using Markovian-chain det.ct.on and occup.ncy models, we assessed t.e mult.-scale habit.t.use of ot.ers in t.eir select.on of suit.ble areas for scent.marking based on rep.at.d p.esence-absence dat. on sp.aint.lat.ine locat.ons along t.e t.CR. We furt.er used linear regression t.chniques t. exp.ore relat.onship. bet.een t.e number of individuals in smoot.-coat.d ot.er group.and hydro-environment.l charact.rist.cs, sp.aint.lat.ine encount.r rat., ant.rop.genic p.essure, land cover, t.p.grap.y, and *** At.t.e local scale, t.e p.obabilit. of sp.aint.dep.sit.on and group.size decreased wit. ant.rop.genic dist.rbance while t.e p.obabilit. of sp.aint.det.ct.ons decreased wit. grass cover. At.t.e landscap. scale, t.e p.obabilit. of ot.er sit. use for sp.aint.dep.sit.on and group.sizes increased in sout.east.flowing st.eams. Sp.aint.dep.sit.on increased wit. t.e p.op.rt.on of sugarcane fields, whereas in cont.ast. group.size decreased wit. p.op.rt.on of sugarcane *** Our findings highlight.t.e first.emp.rical evidence on mult.-scale habit.t.use of a sout.ern Indian p.p.lat.on of smoot.-coat.d ot.ers in an inland freshwat.r ecosyst.m surrounded by t.e scrub jungle–agricult.re mat.ix. We sug

关键词： p.esence-absence modelling Inland river Freshwat.r ecosyst.m Semi-aquat.c mammal Smoot.-coat.d ot.er

Radiat.ve decays D*(s)→ D(s)γ in covariant.confined quark model

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Chinese p.ysics C 2024年第2期48卷 45-56页

作者： C.t.t.an M.A.Ivanov p.Sant.relli Q.C.Vo Dep.rt.ent.of p.ysics HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bogoliubov Laborat.ry of t.eoret.cal p.ysics Joint Institute for Nuclear Research141980 DubnaRussia Dip.rt.ment. di Fisica"E.p.ncini" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Ist.t.t. Nazionale di Fisica Nucleare Sezione di Napoli80126 NapoliItaly Universit. of Science 700000 Ho Chi Minh CityVietnam

Radiat.ve decays D((s))*→D((s))γare revisit.d in light.of new exp.riment.l dat. from t.e BaBar and BESⅢ*** radiat.ve coup.ings gD*Dγencoding nonp.rt.rbat.ve QCD effect. are calculat.d in t.e framework of t.e covariant.confined quark model develop.d by *** comp.re our result. wit. ot.er t.eoret.cal st.dies and exp.riment.l *** coup.ings(in GeV-1)|g(D*+D+γ)|=0.45(9)and|g(D*0D0γ)|=1.72(34)calculat.d in our model agree wit. t.e corresp.nding exp.riment.l dat.|g(D*+D+γ)|=0.47(7)and|g(D*0D0γ)|=1.77(16).t.e most.int.rest.ng case is t.e decay Ds*→Dsγ,for which a recent.p.edict.on based on light.cone sum rules at.next.t.-leading order|gDs*Dsγ|=0.60(19)deviat.s from t.e first.and only t. dat.)lat.ice QCD result.gDs*Dsγ|=0.11(2)at.nearly3σ.Our calculat.on yields|gDs*Dsγ|=0.29(6),which falls somehow bet.een t.e t.o ment.oned result.,alt.ough it.is larger t.an t.ose p.edict.d in ot.er st.dies using quark models or QCD sum rules.

关键词： covariant.quark model radiat.ve decay charmed meson