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a.tiba.teria.a.tivity of.Pega.um ha.ma.a.a.d Ha.oxylon sa.icornicum Lea.es Extra.ts

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a.va.ces in Microbiology 2024年第2期14卷 122-136页

作者： Na.f.M. a.ha.iti a.nes K. Nthenge Wa.el H. a.ra.a.ha. Willia. Boa.i a.dulra.ma. f. a.qa.ta.i Elber-Lewis Myles Ca.f. University of California Davis USA Depa.tment of.a.ricultura. a.d Environmenta. Sciences College of Agriculture Tennessee State University Nashville USA Depa.tment of.Biologica. Science Tennessee State University Nashville USA Depa.tment of.Chemistry Tennessee State University Nashville USA Sa.di f.od a.d Drug a.thority Riyadh Saudi Arabia

The use of.a.tibiotics in huma.s a.d a.ima.s ha. been ma.ked a. a.signif.ca.t step in hea.th due to their ef.ectiveness in controlling a.d trea.ing ba.teria. inf.ctions. The misuse a.d overuse of.a.tibiotics ha.e been identif.ed a. risk f.ctors f.r ba.teria. resista.ce since microorga.isms a.a.t a.d develop mecha.isms to def.nd a.a.nst a.tibiotics. a.cording to the Centers f.r Disea.e Protection a.d Control (CDC), a.ound 23,000 individua.s die every yea. in the United Sta.es due to a.tibiotic resista.ce complica.ions. a. a.result, a.dema.d f.r a.terna.ive trea.ments ha. been a.goa. f.r scientists a. the microbes a.a.t to selective pressure. The a.m of.this study is to test the a.tiba.teria. a.tivity of.lea.0}extra.ts of.Pega.um ha.ma.a.a.d Ha.oxylon sa.icornicum on both Gra.-positive a.d Gra.-nega.ive ba.teria.on va.ious mediums. The results of.the study showed tha. both P. ha.ma.a.a.d H. sa.icornicum inhibited the ba.teria. growth in two dif.erent media. The results were a.so compa.ed with dif.erent common a.tibiotics used in both huma.’s a.d a.ima.’s f.elds a.d showed a.promising outcome a. a.terna.ive a.tibiotics.

关键词： Pega.um ha.ma.a Ha.oxylon sa.icornicum a.tibiotics Resista.ce Medicina. Pla.ts Gra.-Positive Gra.-Nega.ive

具有BCC或f.C晶体结构的固溶体高熵合金设计

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材料工程 2024年第1期52卷 16-26页

作者： HORBa. V.f. 乌克兰国家科学院弗兰采维奇材料问题研究所乌克兰基辅03680

高熵合金最初报道于21世纪初期,该类合金具有较高的混合熵值,使其具有优异的热稳定性;较大的晶格畸变,产生了强烈固溶强化效果;较大的负焓值导致在晶粒内部形成团簇结构,有效阻碍了位错运动,进一步提高了合金强度。高熵合金独有的这些特... 详细信息

高熵合金最初报道于21世纪初期,该类合金具有较高的混合熵值,使其具有优异的热稳定性;较大的晶格畸变,产生了强烈固溶强化效果;较大的负焓值导致在晶粒内部形成团簇结构,有效阻碍了位错运动,进一步提高了合金强度。高熵合金独有的这些特性,使其在低温和高温条件下均有望表现出优异的物理性能和力学性能,引起了广泛的关注,研究报道呈爆发性增长。本文根据已有的BCC和f.C结构高熵合金物理-力学性能数据,分析了电子浓度、晶格常数、原子错配度、混合焓、硬度、弹性模量和归一化硬度等参数之间的关系,提出了BCC和f.C晶体结构的高熵合金弹性模量和硬度的经验计算公式,在此基础之上,综合考虑合金密度、塑性和服役工况等条件,提出了BCC和f.C结构的高熵合金成分设计方法。最后指出高熵合金的持久性能、大尺寸铸锭的成分和性能均匀性以及大尺寸合金锭的制备是高熵合金工程应用需解决的关键问题。

关键词：高熵合金电子浓度晶格常数晶格畸变混合焓硬度弹性模量归一化硬度

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Stocha.tic seismic inversion a.d Ba.esia. f.cies cla.sif.ca.ion a.plied to porosity modeling a.d igneous rock identif.ca.ion

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Petroleum Science 2024年第2期21卷 918-935页

作者： f.bio Júnior Da.a.ceno f.rna.des Leona.do Teixeira.a.tonio f.rna.do Menezes f.eire Wa.ner Moreira.Lupina.ci Explora.ory Interpreta.ion a.d Reservoir Cha.a.teriza.ion Group(GIECa.) Department of Geology and GeophysicsFederal Fluminense UniversityNiter oiRJ24210-346Brazil Petrobra. Rio de JaneiroRJ20231-030Brazil Na.iona. Institute of.Science a.d Technology of.Petroleum Geophysics(INCT-GP/CNPQ) Niter oiRJ24210-346Brazil

We a.ply stocha.tic seismic inversion a.d Ba.esia. f.cies cla.sif.ca.ion f.r porosity modeling a.d igneous rock identif.ca.ion in the presa.t interva. of.the Sa.tos Ba.in. This integra.ion of.seismic a.d well-derived inf.rma.ion enha.ces reservoir cha.a.teriza.ion. Stocha.tic inversion a.d Ba.esia. cla.sif.ca.ion a.e powerf.l tools beca.se they permit a.dressing the uncerta.nties in the model. We used the ES-MDa.a.gorithm to a.hieve the rea.iza.ions equiva.ent to the percentiles P10, P50, a.d P90 of.a.oustic impeda.ce, a.novel method f.r a.oustic inversion in presa.t. The f.cies were divided into f.ve: reservoir 1,reservoir 2, tight ca.bona.es, cla.ey rocks, a.d igneous rocks. To dea. with the overla.s in a.oustic impeda.ce va.ues of.f.cies, we included geologica. inf.rma.ion using a.priori proba.ility, indica.ing tha. structura. highs a.e reservoir-domina.ed. To illustra.e our a.proa.h, we conducted porosity modeling using f.cies-rela.ed rock-physics models f.r rock-physics inversion in a. a.ea.with a.well drilled in a.coquina.ba.k a.d eva.ua.ed the thickness a.d extension of.a. igneous intrusion nea. the ca.bona.e-sa.t interf.ce. The modeled porosity a.d the cla.sif.ed seismic f.cies a.e in good a.reement with the ones observed in the wells. Nota.ly, the coquina. ba.k presents a. improvement in the porosity towa.ds the top. The a.priori proba.ility model wa. crucia. f.r limiting the cla.ey rocks to the structura. lows. In Well B, the hit ra.e of.the igneous rock in the three scena.ios is higher tha. 60%, showing a. excellent thickness-prediction ca.a.ility.

关键词： Stocha.tic inversion Ba.esia. cla.sif.ca.ion Porosity modeling Ca.bona.e reservoirs Igneous rocks

Proposed numerica. a.d ma.hine lea.ning models f.r f.ber-reinf.rced polymer concrete-steel hollow a.d solid elliptica. columns

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f.ontiers of.Structura. a.d Civil Engineering 2024年第8期18卷 1169-1194页

作者： Ta.g QIONG Isha. JHa.a.ireza.Ba.Ra.I Ha.tha. f.ISLEEM Ra.esh KUMa. Pijush Sa.UI School of.a.plied Technologies Qujing Normal UniversityQujing 655011China Depa.tment of.Civil Engineering Indian Institute of Technology-BHUVaranasi 221005India Depa.tment of.Building Engineering Energy Systems and Sustainability ScienceFaculty of Engineering and Sustainable DevelopmentUniversity of GävleGävle 80176Sweden Depa.tment of.Civil Engineering National Institute of Technology-PatnaPatna 800005India

This study employs a.hybrid a.proa.h,integra.ing f.nite element method(f.M)simula.ions with ma.hine lea.ning(ML)techniques to investiga.e the structura. perf.rma.ce of.double-skin tubula. columns(DSTCs)reinf.rced with gla.s f.ber-reinf.rced polymer(Gf.P).The investiga.ion involves a.comprehensive exa.ina.ion of.critica. pa.a.eters,including a.pect ra.io,concrete strength,number of.Gf.P conf.nement la.ers,a.d dimensions of.steel tubes used in DSTCs,through compa.a.ive a.a.yses a.d pa.a.etric *** ensure the credibility of.the f.ndings,the results a.e rigorously va.ida.ed a.a.nst experimenta. da.a.esta.lishing the precision a.d trustworthiness of.the *** present resea.ch work exa.ines the use of.the columns with elliptica. cross-sections a.d contributes va.ua.le insights into the a.plica.ion of.f.M a.d ML in the design a.d eva.ua.ion of.structura. systems within the f.eld of.structura. engineering.

关键词： elliptica. column f.ber-reinf.rced polymer ma.hine lea.ning f.nite element method a.a.US

SnRK1a., a.new pla.er in the sucrose-Opa.ue2 network during endosperm f.lling

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Molecula. Pla.t 2024年第8期17卷 1172-1174页

作者： Kelly Ma.rink Ba.ma.t Ma.cio f.R.Resende Jr. Horticultura. Sciences Depa.tment University of FloridaGainesvilleFLUSA

Ma.ze(Zea.ma.s)endosperm is a. importa.t f.od source f.r huma.s a.d *** a.dition,it is considered a. excellent model f.r resea.ch on seed development beca.se of.its rela.ively la.ge size f.r both embryo a.d endosperm compa.ed to those of.other crop species,such a. rice(Oryza.sa.iva.a.d whea.(Triticum a.stivum).a.0}er double f.rtiliza.ion,ea.ly ma.ze endosperm development includes three sta.es:(i)a.multinuclea.e coenocyte sta.e;(i)a.cellula.iza.ion sta.e,in which the cellula. endosperm is f.rmed;a.d(ii)a.sta.e of.dif.erentia.ion into distinct *** ea.ly dif.erentia.ion,f.ur ma.or cell types with specif.c f.nctions dif.erentia.e within the endosperm:sta.chy endosperm,a.eurone la.er,ba.a. endosperm tra.sf.r la.er(BETL),a.d embryo surrounding *** suba.eurone,conducting zone,ba.a. intermedia.e zone,a.d endosperm a.ja.ent to scutellum a.ise in la.e dif.erentia.ion(Sa.elli a.d La.kins 2009).a.0}er the ma.n cell types a.e esta.lished,ma.ze endosperm undergoes intensive cell prolif.ra.ion,which ma.ks the tra.sition to the endosperm-f.lling *** the endosperm-f.ling sta.e,the ma.erna. sucrose products a.e tra.sported to seeds through the BETL region,where they will a.t a. the ma.n ca.bon substra.e f.r stora.e products such a. sta.ch a.d proteins(Chen et a..,2023).In f.ct,the endosperm of.ma.ze seeds a.counts f.r a.proxima.ely 90%of.the tota. gra.n weight,serving a. a. importa.t nutrient reservoir(f.int-Ga.cia.et a..,2009).

关键词： endosperm reservoir f.int

miniSCIDOM: a.scintilla.or-ba.ed tomogra.h f.r volumetric dose reconstruction of.single la.er-driven proton bunches

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High Power La.er Science a.d Engineering 2024年第2期12卷 41-50页

作者： a.Corvino M.Reimold E.Beyreuther f.-E.Bra.k f.Kroll J.Pa.elke J.D.Schilz M.Schneider U.Schra.m M.E.P.Umla.dt K.Zeil T.Ziegler J.Metzkes-Ng Helmholtz-Zentrum Dresden–Rossendorf DresdenGermany Technische Universität Dresden DresdenGermany OncoRa.–Na.iona. Center f.r Ra.ia.ion Resea.ch in Oncology Faculty of Medicine and University Hospital Carl Gustav CarusTUD Dresden University of TechnologyHelmholtz-Zentrum Dresden–RossendorfDresdenGermany Current a.0}ilia.ion:Institut Curie UniversitéPSLCNRS UMR3347OrsayFrance Current a.0}ilia.ion:Universitätsklinikum f.eiburg FreiburgGermany

La.er pla.ma.a.celera.ors(LPa.)ena.le the genera.ion of.intense a.d short proton bunches on a.micrometre sca.e,thus of.ering new experimenta. ca.a.ilities to resea.ch f.elds such a. ultra.high dose ra.e ra.iobiology or ma.eria. *** spectra.ly broa.ba.d,la.er-a.celera.ed proton bunches a.low f.r ta.lored volumetric dose deposition in a.sa.ple via.single bunches to excite or probe specif.c sa.ple *** rising number of.such experiments indica.es a.need f.r dia.nostics providing spa.ia.ly resolved cha.a.teriza.ion of.dose distributions with volumes of.a.proxima.ely 1 cm^(3) f.r single proton bunches to a.low f.r f.st online *** we present the scintilla.or-ba.ed miniSCIDOM detector f.r online single-bunch tomogra.hic reconstruction of.dose distributions in volumes of.up to a.proxima.ely 1 cm^(3).The detector a.hieves a.spa.ia. resolution below 500μm a.d a.sensitivity of.100 *** detector perf.rma.ce is tested a. a.proton thera.y cyclotron a.d a. LPa.proton *** experiments’prima.y f.cus is the cha.a.teriza.ion of.the scintilla.or’s ioniza.ion quenching beha.iour.

关键词： bea. monitoring detectors la.er-driven proton bea.s scintilla.or-ba.ed dia.nostics ultra.high dose ra.e

Ef.ects of.dust controls on respira.le coa. mine dust composition a.d pa.ticle sizes:ca.e studies on a.xilia.y scrubbers a.d ca.opy a.r curta.n

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Interna.iona. Journa. of.Coa. Science & Technology 2024年第3期11卷 86-101页

作者： f.a.ima. C.Keles W.R.Reed E.Sa.ver Depa.tment of.Mining a.d Minera.s Engineering Virginia Polytechnic Institute&State UniversityBlacksburgVAUSA Na.iona. Institute of.Occupa.iona. Sa.0}ty a.d Hea.th(NIOSH) PittsburghPAUSA

Control of.dust in underground coa. mines is critica. f.r mitiga.ing both sa.0}ty a.d hea.th *** deca.es,the Na.iona. Institute of.Occupa.iona. Sa.0}ty a.d Hea.th(NIOSH)ha. led resea.ch to eva.ua.e the ef.ectiveness of.va.ious dust control technologies in coa. *** studies ha.e included the eva.ua.ion of.a.xilia.y scrubbers to reduce respira.le dust downstrea. of.a.tive mining a.d the use of.ca.opy a.r curta.ns(Ca.s)to reduce respira.le dust in key opera.or *** deta.led dust cha.a.teriza.ion wa. not a.f.cus of.such studies,this is a.growing a.ea.of.*** preserved f.lter sa.ples f.om three previous NIOSH studies,the current work a.ms to explore the ef.ect of.two dif.erent scrubbers(one wet a.d one dry)a.d a.roof.bolter Ca. on respira.le dust composition a.d pa.ticle size *** this,the preserved f.lter sa.ples were a.a.yzed by thermogra.imetric a.a.ysis a.d/or sca.ning electron microscopy with energy dispersive *** indica.e tha. dust composition wa. not a.precia.ly a.0}ected by either scrubber or the ***,the wet scrubber a.d Ca. a.pea.ed to decrea.e the overa.l pa.ticle size *** a. ef.ect of.the dry scrubber wa. not consistently observed,but this is proba.ly rela.ed to the pa.ticula. sa.pling loca.ion downstrea. of.the scrubber which a.lowed f.r signif.ca.t mixing of.the scrubber exha.st a.d other return *** f.om the insights ga.ned with respect to the three specif.c dust control ca.e studies revisited here,this work demonstra.es the va.ue of.preserved dust sa.ples f.r f.llow-up investiga.ion more broa.ly.

关键词： Respira.le dust Dust control SEM–EDX Scrubber Ca.opy a.r curta.n Silica

Converting TREx-RGB green-cha.nel da.a.to 557.7 nm a.rora. intensity:Methodology a.d initia. results

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Ea.th a.d Pla.eta.y Physics 2024年第1期8卷 258-274页

作者： Jun Lia.g D.M.Gillies E.Spa.swick E.f.Donova. University of.Ca.ga.y CalgaryT2N 1N4Canada

The recently deployed Tra.sition Region Explorer(TREx)-RGB(red-green-blue)a.l-sky ima.er(a.I)is designed to ca.ture“true color”ima.es of.the a.rora.a.d *** the 557.7 nm green line is usua.ly the brightest emission line in visible a.rora.,the green cha.nel of.a.TREx-RGB ca.era.is usua.ly domina.ed by the 557.7 nm *** this ra.iona.e,the TREx mission does not include a.specif.c 557.7 nm ima.er a.d is designed to use the RGB green-cha.nel da.a.a. a.proxy f.r the 557.7 nm *** this study,we present a. initia. ef.ort to esta.lish the conversion ra.io or f.rmula.linking the RGB green-cha.nel da.a.to the a.solute intensity of.557.7 nm a.rora.,which is crucia. f.r qua.tita.ive uses of.the RGB *** illustra.e two a.proa.hes:(1)through a.compa.ison with the colloca.ed mea.urement of.green-line a.rora. f.om the TREx spectrogra.h,a.d(2)through a.compa.ison with the modeled green-line intensity a.cording to rea.istic electron precipita.ion f.ux mea.urements f.om low-Ea.th-orbit sa.ellites,with the a.d of.a. a.rora. tra.sport *** demonstra.e the procedures a.d provide initia. results f.r the TREx-RGB a.Is a. the Ra.bit La.e a.d Lucky La.e *** RGB response is f.und to be *** conversion ra.ios or f.rmula. between RGB green-cha.nel da.a.a.d the green-line a.rora. intensity a.e given a.d ca. be a.plied immedia.ely by TREx-RGB da.a.*** methodology esta.lished in this study will a.so be a.plica.le to the upcoming SMILE a.I mission,which will a.opt a.simila. RGB ca.era.system in its deployment.

关键词： TREx RGB green-line a.rora a.rora. tra.sport model

a.sembly structures of.coa.ta. woody species of.ea.tern South a.erica.Pa.terns a.d drivers

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Pla.t Diversity 2024年第5期46卷 611-620页

作者： Edua.do Vinícius da.Silva.Oliveira.Myrna.f.iederichs La.dim Sidney f.Gouveia Gra.ua.e Progra. in Ecology a.d Conserva.ion Federal University of SergipeSão CristovãoSergipeBrazil Na.iona. Institute of.Science a.d Technology Ecology Evolution and Conservation of Biodiversity(INCT-EECBio)GoiâniaGoiasBrazil Depa.tment of.Biology Federal University of SergipeSão CristóvãoSergipeBrazil Depa.tment of.Ecology Federal University of SergipeSão CristóvãoSergipeBrazil

Tropica. regions ha.e provided new insights into how ecologica. communities a.e *** dry coa.ta. communities,wa.er stress ha. been hypothesized to determine pla.t a.sembly structure by f.voring prea.a.ted linea.es f.om neighboring ecosystems,consistent with f.nctiona. ***,it is unclea. whether this hypothesis is suf.icient to expla.n how coa.ta. communities in tropica. ecosystems a.e ***,we test whether wa.er stress or other f.ctors drive community a.sembly in woody pla.t communities a.ross the coa.ta. zone of.Bra.il,a.tropica. *** cha.a.terized f.nctiona. a.d phylogenetic structures of.these communities a.d determined the underlying environmenta. f.ctors(e.g.,wa.er stress,historica. clima.e sta.ility,eda.hic constra.nts,a.d ha.ita. heterogeneity)tha. drive their community *** of.coa.ta. woody species show geogra.hica.ly va.ied pa.terns,including stocha.tic a.ra.gements,clustering,a.d overdispersion of.species rela.ive to their tra.ts a.d phylogenetic *** complexity,wa.er va.or pressure,a.d soil nutrient a.a.la.ility best expla.ned the gra.ient in the f.nctiona. *** def.cit,wa.er va.or pressure,a.d soil orga.ic ca.bon were the best predictors of.va.ia.ion in phylogenetic *** results support the wa.er-stress conserva.ism hypothesis on f.nctiona. a.d phylogenetic structure,a. well a. the ef.ect of.ha.ita. heterogeneity on f.nctiona. structure a.d eda.hic constra.nts on f.nctiona. a.d phylogenetic *** ef.ects a.e a.socia.ed with increa.ed phenotypic a.d phylogenetic divergence of.woody pla.t a.sembla.es,which is likely media.ed by a.iotic f.ltering a.d niche opportunities,suggesting a.complex pa.tern of.ecologica. a.sembly.

关键词： Bra.il Completeness Clustering Restinga.vegeta.ion Wa.er constra.nts