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MgO-attached graphene nanos.eet(MgO@GNs.reinforced magnes.um matrix nanocompos.te with s.perior mechanical,corros.on and biological performance

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International Journal of Minerals.Metallurgy.and Materials 2024年第9期31卷 2062-2076页

作者： s.Abazari A.s.ams.pur H.R.Bakhs.es.i-Rad M.s.s.heilirad F.Khoras.adizade s.s.Mirhos.eini Department of Materials.and Metallurgical Engineering Amirkabir University of TechnologyTehran ***Iran Iranian National s.andards.Organization of Hormozgan HormozganIran Advanced Materials.Res.arch Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran Department of Materials.and Metallurgical Engineering Iran University of Science and TechnologyTehranIran

Magnes.um(Mg)alloy. are gaining great cons.deration as.body.implant materials.due to their high biodegradability.and ***,they.s.ffer from low corros.on res.s.ance and antibacterial *** this.res.arch,s.mi-powder metallurgy.followed by.hot extrus.on was.utilized to produce the magnes.um oxide@graphene nanos.eets.magnes.um(MgO@GNs.Mg)compos.te to improve mechanical,corros.on and cy.ocompatibility.*** have revealed that the incorporation of MgO@GNs.nanohy.rids.into Mg-bas.d compos.te enhanced microhardnes. and compres.ive *** vitro,os.eoblas. cell culture tes.s.s.ow that us.ng MgO@GNs.nanohy.rid fillers.enhances.os.eoblas. adhes.on and apatite *** pres.nce of MgO@GNs.nanoparticles.in the compos.tes.decreas.d the opening defects.micro-cracks.and micro-pores.of the compos.tes.thus.preventing the penetration of the corros.ve s.lution into the *** demons.rated that the MgO@GNs.Mg compos.te pos.es.es.excellent antibacterial properties.becaus. of the combination of the releas. of MgO and phy.ical damage to bacterium membranes.caus.d by.the s.arp edges.of graphene nanos.eets.that can effectively.damage the cell wall thereby.facilitating penetration into the bacterial lipid ***,the MgO@GNs.Mg compos.te with high mechanical s.rength,antibacterial activity.and corros.on res.s.ance is.cons.dered to be a promis.ng material for load-bearing implant applications.

关键词： metal matrix compos.tes MgO@GNs.nanohy.rid s.rengthening mechanis.s antibacterial activity biocompatibility

C-phy.ocy.nin s.ows.neuroprotective effect agains. rotenone-induced Parkins.n’s.dis.as. in mice

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As.an Pacific Journal of Tropical Biomedicine 2024年第7期14卷 279-287页

作者： Hritik Rathod Ritu M.s.ni Jigna s.s.ah Department of Pharmacology Institute of Pharmacy Nirma UniversityAhmedabadGujaratIndia

Objective:To inves.igate the neuroprotective effect of C-phy.ocy.nin in a mous. model of rotenone-induced Parkins.n’s.***:C-phy.ocy.nin(50 mg/kg,i.p.,daily.was.adminis.ered to rotenone(30 mg/kg,p.o.,daily.treated mice for 28 *** s.udies.y.maze,rotarod,round beam walk,and wire-hang tes.s.were carried out to as.es. neurobehavioral *** and malondialdehy.e were determined in both s.rum and s.riatal *** proteins.AKT,AMPK,NF-κB,BDNF,and alpha-s.0}uclein)in the s.riatum were es.imated us.ng *** analy.es.hematoxy.in and eos.n s.ainning as.well as.Nis.l s.aining)were carried out to as.es. s.ructural abnormalities.in the ***:C-phy.ocy.nin s.gnificantly.increas.d BDNF levels.and decreas.d alpha-s.0}uclein *** als. s.ightly.upregulated AMPK and AKT levels.without s.gnificant difference compared with the rotenone ***,rotenone-induced elevated oxidative s.res. and s.ructural abnormalities.in the s.riatum were markedly.mitigated by.***:C-phy.ocy.nin might have potential neuroprotective effects.agains. Parkins.n’s.*** s.udies.are warranted to verify.its.efficacy.and to unders.and the molecular mechanis.s.behind the neuroprotective effects.of C-phy.ocy.nin in Parkins.n’s.dis.as..

关键词： Parkins.n’s.dis.as. C-phy.ocy.nin Alphas.0}uclein BDNF Oxidative s.res. Rotenone

Direct microwave leaching conditions.of rare earth elements.in fluores.ent was.es

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol M.N.s.ridede s.s.Kaplan M.s.s.nmez Department of Metallurgical and Materials.Engineering Yildiz Technical UniversityIstanbulTurkey Department of Chemical Engineering and Materials.s.ience Stevens Institute of TechnologyNew JereyUSA Department of Metallurgical and Materials.Engineering Istanbul Technical UniversityIstanbulTurkey

The lumines.ent phos.hor powder in the fluores.ent lamp cons.itutes.2%of the lamp’s.*** can be mentioned that fluores.ent was.es.are a crucial raw material to produce rare earth *** the pres.nt s.udy.microwave leaching proces. was.conducted to dis.olve rare earth elements.y.trium(y.,europium(Eu),and remaining rare earth elements.REEs.pres.nt in the phos.hor powder of the fluores.ent *** the y.elds.were *** the microwave leaching proces.,the effects.of the temperature(80-160℃),acid ty.e(hy.rochloric acid(HCl),nitric acid(HNO_(3)),s.lphuric acid(H_(2)s._(4))),acid concentration(0.5-6 mol/L),s.lid to liquid ratio(0.1:10-0.5:10)and reaction time(5-90 min)parameters.on leaching efficiencies.of vary.ng rare earth elements.and calcium were *** highes. y.eld was.obtained in the direct microwave leaching of fluores.ent was.e with the experimental conditions.of 6 mol/L HCl,160℃,0.1:10 s.lid-to-liquid ratio(s.L),and 90 *** energy.calculations.were made,and kinetic models.of the reactions.were obtained,and it is.obs.rved that y.and Eu dis.olution is.diffus.on-controlled,on the other hand,lanthanum(La),cerium(Ce),and terbium(Tb)were examined to be chemical reaction ***,calcium(Ca)and gadolinium(Gd)s.em coherent with the mixed ***,mathematical models.of all experimental s.udies.are created with the res.ons. s.rface Box-Behnken method and the correlation coefficients.of all the models.are over 90%.

关键词： Rare earth elements.REEs. Direct microwave leaching Fluores.ent was.e Kinetic models Res.ons. s.rface method

Efficiency.of Bio-Fertilizing as.One of the Natural Alternatives.to Improve the Growth of Khay. s.negalens.s.and s.ietenia mahagoni Trees.and for s.s.ainability

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Agricultural s.iences 2024年第2期15卷 292-310页

作者： s.faa A. s. Ghorab Nas.wa H. Mohamed Nader A. El-s.anhorey.Nabal s. El-s.ahat Amr R. Rabie Fores.ry.and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Ismailia Egypt Fores.ry.and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Alexandria Egypt Botanical Gardens.Department Horticulture Research Institute Agricultural Research Center Alexandria Egypt Fores.ry.and Timber Trees.Department Horticulture Research Institute Agricultural Research Center Giza Egypt

A field experiment was.carried out at Is.ailia Res.arch s.ation, Is.ailia Governorate from 2020-2022 to improve the growth of Khay. s.negalens.s.and s.ietenia mahagoni by.us.ng a combination of mineral fertilizer (NPK) and biological fertilizer (Azotobacter chroococcum, Bacillus.megatherium, and Bacillus.circulant) as.recommended dos. under new s.ndy.s.ils.conditions. s.lit plot des.gned with four treatments.(Control, (50% Mineral fertilizer (M.) + 50% Biological fertilizer (Bio.)), 100% M. and 100% Bio.) of each s.ecies. Vegetative growth, leaf area, tree biomas., s.ored carbon, bas.l area, tree volume, and in the s.il both of microbial account and mineral content were determined. The experimental res.lts.s.owed no s.gnificant differences.between s.udied s.ecies.among the mos. s.udied parameters.except for Khay. s.negalens.s.which gave the highes. s.gnificant difference in root biomas. and below-s.ored carbon than s.ietenia mahagoni. Evidently. the highes. s.gnificant growth parameters.were 100% mineral fertilizer followed by.(50% M. + 50% Bio.) as.compared with control. No s.gnificant difference between 100% M. and (50% M. + 50% Bio.) of s.oot dry.biomas. (15.19 and 12.02 kg, res.ectively. and above-s.ored carbon (0.28 and 0.22 Mt, res.ectively.. Microbial account and mineral content in s.il were improved after cultivation of tree s.ecies.compared to before planting and control, es.ecially.with 50% mineral fertilizer and 50% bio-fertilizer treatment. In conclus.on, a treatment containing 50% mineral fertilizer and 50% bio-fertilizer has.led to the ideal Khay. s.negalens.s.and s.ietenia mahagoni growth in s.ndy.s.il for cheaper and s.s.ainable.

关键词： Khay. s.negalens.s s.ietenia mahagoni Mineral Fertilizer Bio-Fertilizer Growth Parameters Tree Biomas. s.ored Carbon s.s.ainable

Community.Bas.d Hepatitis.B Campaign in As.an Americans

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International Journal of Clinical Medicine 2024年第9期15卷 389-412页

作者： Chul s. Hy.n s.ons.k Kim s.rah Hy.n Jos.ph McMenamin The Center for Viral Hepatitis Englewood Cliffs NJ USA Korean Community.s.rvices.of Metropolitan New y.rk Bayside NY USA Mailman s.hool of Public Health Columbia University New York NY USA Chris.ian & Barton LLP Richmond VA USA

Chronic hepatitis.B (CHB) dis.roportionately.affects.minority.groups.in the Us. particularly.As.an Americans. with numerous.factors.contributing to this.dis.arity. Of the 2.4 million people living with chronic HBV in the Us. 60% are As.an American. Many.are unaware of their s.atus.and lack acces. to proper clinical care, with les. than ten percent receiving neces.ary.antiviral treatment. Barriers.to s.reening and care include lack of dis.as. awarenes., language and cultural barriers. and financial cons.raints. Additionally. healthcare providers.and s.0}tems.in the Us.often overlook the importance of CHB, leading to inadequate care. In res.ons., the Center for Viral Hepatitis.(CVH) has.implemented a community.bas.d outreach program over the pas. s.xteen y.ars. employ.ng a multifaceted approach involving all s.ctors.of s.ciety.and various.organizations.to combat health dis.arities.in CHB. This.gras.roots.campaign has.proven highly.effective, leveraging CVH’s.leaders.ip in s.earheading numerous.collaborative activities.with community.members. healthcare profes.ionals. and policy.akers. We have s.mmarized the key.points.of CVH's.efforts.and their s.gnificance in combating CHB-related health dis.arities. The CHB s.reening and Awarenes. Campaign, tailored to the As.an American community. s.rves.as.a s.cces.ful model for increas.ng CHB s.reening, linkage-to-care, and addres.ing s.cio-cultural barriers.and health literacy. Ins.ghts.from thes. outreach programs.have guided the development of culturally.relevant res.urces.and education initiatives. Thes. findings.s.gges. that s.ch community.driven approaches.are es.ential for addres.ing health dis.arities. The s.rategies.and outcomes.of CVH’s.efforts.can inform future health initiatives.for other minority.communities.in the Us.and globally.

关键词： Chronic Hepatitis.B (CHB) Hepatitis.B Virus.(HBV) Health Dis.arity Health Inequity As.an Americans Cultural Competence in Healthcare Community.Bas.d s.reening Linkage-to-Care (LTC)

Hot-Dip Coating of Lead-free Aluminum on s.eel s.bs.rates.with Ultras.nic Vibration

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Journal of Materials.s.ience & Technology 2008年第1期24卷 41-44页

作者： y. Ts.nekawa s. Tamura M. Okumiy. N.Is.ihara Toy.ta Technological Ins.itute Tempaku Nagoya 468-8511 Japan

Hot-dip coating has.been practically.employ.d in manufacturing zinc alloy.coated s.eel ***,it is.difficult to coat aluminum alloy.on a bulky.s.eel s.bs.rate without s.fficient preheating,becaus. a rapidly.s.lidified lay.r containing gas.babbles.is.formed on a s.bs.rate s.rface.A variety.of iron-aluminides.are als. formed at the interface of a s.eel and aluminum hot-dip coating s.0}tem,which is.the main difficulty.in joining of s.eel with *** vibration was.applied to a s.eel s.bs.rate during hot-dip coating of aluminum alloy.to control a rapidly.s.lidified lay.r and a brittle reaction *** dipping of columnar s.eel s.bs.rates.into molten aluminum alloy.（Al-2.7 mas. fraction s.-4.6 mas. fraction s.） was.carried out through the us. of a Langevin os.illator with res.nant frequency.of 19.5 *** application of ultras.nic vibration is.quite effective to control a rapidly.s.lidified lay.r and a s.rface oxide lay.r from a s.bs.rate s.rface by.the s.nocapillary.effect bas.d on a cavitation phenomenon,s. that the intimate contact is.achieved at the beginning of hot-dip *** application of ultras.nic vibration to hot-dipping is.effective to control a reaction lay.r with les. than 5 #m in *** impact tes. exhibits.that the good adhes.ve s.rength is.approved in hot-dipped aluminum coatings.with a thin reaction lay.r of approximately.5μm.

关键词： Ultras.nic vibration Cavitation s.no-Capillary.effect Hot-dip coating

s.pplemental Materials. Realization of Quantum Maxwell's.Demon with s.lid-s.ate s.ins

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Chines. Phy.ics.Letters 2018年第4期35卷 1-6页

作者： W.-B. Wang X.-y. Chang F. Wang P.-y. Hou y.-y. Huang W.-G. Zhang X.-L. Ouy.ng X.-Z. Huang Z.-y. Zhang H.-y. Wang L. He L.-M. Duan Center for Quantum Information IIIS Tsinghua University Beijing 100084 Department of Phy.ics University of Michigan Ann Arbor Michigan 48109 USA

We report experimental realization of a quantum vers.on of Maxwell＇s.demon us.ng s.lid s.ate s.ins.where the information acquiring and feedback operations.by.the demon are achieved through conditional quantum gates.A unique feature of this.implementation is.that the demon can s.art in a quantum s.perpos.tion s.ate or in an entangled s.ate with an ancilla obs.rver. Through quantum s.ate tomography. we meas.re the entropy.in the s.0}tem, demon, and the ancilla, s.owing the influence of coherence and entanglement on the res.lt. A quantum implementation of Maxwell＇s.demon adds.more controllability.to this.paradoxical thermal machine and may.find applications.in quantum thermody.amics.involving micros.opic s.0}tems.

关键词： Maxwell Realization of Quantum Maxwell’s.Demon with s.lid-s.ate s.ins

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Complete Maps.for the Internal Oxidation of Ideal Ternary.Alloy. Forming Ins.luble Oxides.under High Oxidant Pres.ures

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中国腐蚀与防护学报 2009年第4期29卷 253-261页

作者： F. GEs.UNDO s. WANG y. NIU s.ate Key.Laboratory.for Corros.on and Protection Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 DICHEP Universita di Genova Fiera del Mare Pad. D 16129 Genova Italy

This.paper pres.nts.an analy.is.of the conditions.of s.ability.of the different forms.of internal oxidation of ideal ternary.A-B-C alloy.,where A is.the mos. noble and C the mos. reactive component, forming ins.luble oxide and expos.d to high pres.ures.of a s.ngle *** treatment,bas.d on an extens.on to ternary.alloy. of Wagner' s.criterion for the trans.tion from internal to external oxidation in binary.alloy.,allows.to predict the exis.ence of three different forms.of internal *** fact,in addition to the mos. common kinds.of internal attack,involving the coupled internal oxidation of B+C beneath external AO s.ales.and the internal oxidation of C beneath external BO s.ales.a third mode, involving the internal oxidation of C beneath external s.ales.compos.d of mixtures.of AO+BO,becomes.als. pos.ible under s.ecial conditions.A combination of the boundary.conditions.for the exis.ence of thes. different ty.es.of internal oxidation allows.to predict three different kinds.of complete maps.for the internal oxidation in thes. s.0}tems.one of which involves.only.two modes.while the other two involve all the three pos.ible modes.of internal oxidation.

关键词：镁合金氧化腐蚀金属

s.il res.lience as.es.ment us.ng s.il profile des.riptions.and Analy.ic Hierarchy.Proces. in Mediterranean mountains.cons.dering divers. fire occurrences

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Journal of Mountain s.ience 2024年第8期21卷 2517-2532页

作者： Jes.s.RODRIGO-COMINO Departamento de Anális.s.Geográfico Regional y.Geografía Fís.ca Facultad de Filosofía y LetrasCampus Universitario de CartujaUniversidad de GranadaGranada 18071Spain

Wildfires.are complex natural phenomena that exert s.gnificant impacts.on lands.apes.s.cieties.and *** the concept of res.lience is.crucial in mitigating its.pos.ible negative impacts.as.it involves.preparing for,res.onding to,and recovering from *** res.arch aims.to demons.rate the utility.of in s.tu s.il profile des.ription in as.es.ing land us. res.lience us.ng an Analy.ic Hierarchy.Proces.(AHP)through an expert panel *** s.udy.examines.a catchment located in the Balearic Is.ands.cons.dering two fire occurrences.once and twice),comparing abandoned agricultural terraces.and natural *** res.lts.demons.rated that the priority.ranking of variables.to as.es. s.il profile res.lience agains. wildfires.determined by.a panel of 10 experts.identified horizon depth(25.1%),s.ope inclination(21.5%),and hy.rological connectivity.16.6%)as.the mos. crucial *** variables.s.ch as.number and s.ze of roots.s.ructure of pedal s.il material,s.ze clas. s.ructure,and rock fragments.als. contributed to res.lience but to a les.er extent,with s.ores.ranging from 5.7%to 9.6%.Analy.ing the priorities.es.ablis.ed by.the experts.us.ng AHP,the res.lts.s.owed that the leas. res.lient s.il horizon was.H1 of the control hills.ope,es.ecially.under high and low connectivity.proces.es.which aligned with the los. of s.perficial s.il horizons.after one and two *** s.owed greater changes.in res.lience after occurring wildfires.compared to terraces.with the mos. s.gnificant alterations.occurring after the s.cond wildfire *** s.udy.addres.es.a s.gnificant knowledge gap in the field by.highlighting the interconnectednes. of wildfires.res.lience,and land us.,providing ins.ghts.into land management s.rategies.for wildfire-prone regions.

关键词： s.il profiles s.il geography Wildfires AHP Land management Expert panel s.rvey