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A comprehensive review on the processing-property rel.tionships of l.ser strengthened magnesium

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Journal.of Magnesium and Al.oys 2024年第1期12卷 1-34页

作者： Al.ssandro M.Ral.s Aaksheta Agnel.Pradeep l.menezes department of Mechanical.Engineering University of Nevada RenoRenoNV 89557United States

Among the existing series of softer metal.,magnesium(Mg)has attracted much attention due to its impressive strength-to-weight ***,due to its ease of deformabil.ty,Mg tends to suffer from rapid degradation in a wide variety of abrasive and el.ctrochemical.*** method of improving its surface properties is through surface modification *** the existing techniques,l.ser shock peening(l.P)has been one of the most widel. util.zed processes due to its surface-hardening-l.ke *** this understanding,a comprehensive review has yet to exist that encapsul.tes the strengthening mechanism of l.P for Mg and its infl.ence in degradation *** review aims to encapsul.te the existing research around the l.P fiel. for ***,an understanding of the surface-strengthening effects in rel.tion to its mechanical.tribol.gical.corrosion,and tribo-corrosion characteristics is ***,the feasibil.ty of l.P for Mg material. in critical.industries is al.o *** this work,a novel.understanding of l.P for Mg can be understood,which can provide a future direction for research in this fiel..

关键词： l.ser shock peening Magnesium Surface deformation Tribol.gy Microstructure

Spark Pl.sma Sintering of Mg-based Al.oys:Microstructure,Mechanical.Properties,Corrosion Behavior,and Tribol.gical.Performance

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Journal.of Magnesium and Al.oys 2024年第2期12卷 405-442页

作者： Al.ssandro M.Ral.s Mohammadreza Daroonparvar Pradeep l.menezes department of Mechanical.Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark pl.sma sintering(SPS)has become an increasingl. popul.r process for Mg *** the SPS process,interparticl. diffusion of compressed particl.s is rapidl. achieved due to the concept of Joul. *** to traditional.and additive manufacturing(AM)techniques,SPS gives unique control.of the structural.and microstructural.features of Mg *** doing so,their mechanical.tribol.gical.and corrosion properties can be *** great advancements in this fiel. have been made,these pieces of knowl.dge are scattered and have not been contextual.zed into a singl. *** motivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS manufacturing for *** do so,the existing body of SPS Mg l.terature was first surveyed,with a focus on their structural.formation and degradation *** was found that successful.Mg SPS fabrication highl. depended on the processing temperature,particl. size,and particl. *** addition of metal.and ceramic composites al.o affected their microstructural.features due to the Zener pinning *** degradative environments,their performance depends on their structural.features and whether they have secondary phased *** industrial.appl.cations,SPS'd Mg was found to have great potential.in biomedical.hydrogen storage,battery,automotive,and recycl.ng *** prospects to advance the fiel. incl.de using Mg as a doping agent for crystal.ite size refinement and using bul. metal.ic Mg-based gl.ss powders for amorphous SPS *** these findings,the interactions of mul.i-composites on the processing-structure-property rel.tionships of SPS Mg is not wel. *** total.this work wil. provide a useful.direction in the SPS fiel. and serve as a mil.stone for future Mg-based SPS manufacturing.

关键词： Spark pl.sma sintering Magnesium al.oys Nanocrystal.ine Tribol.gy Mechanical.properties Corrosion

Oxidation of Amino Acids by Chl.rpromazine Cation Radical.and Co-Catal.sis by Chl.rpromazine

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*** model.of ribofl.vin transporter deficiency(RTD)disorder reveal. deficits in synaptic transmission and movement

Pharmacol.gy & Pharmacy（药理与制药） 2012年第1期

作者： Val.ecir F. Ximenes Giovana B. Quaggio Fernanda S. Graciani manoel l. de menezes

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Genes & Diseases 2024年第4期11卷 120-123页

作者： Ramesh K.Narayanan Gonzal. Perez-sil.s Kamil. A.Marzec Al.xandra Boyl.ng Brent Neumann Manoj P.menezes Marina l.Kennerson Northcott Neuroscience l.boratory ANZAC Research Institute-Sydney Local Health DistrictSydneyNSW 2139Australia Sydney Medical.School University of SydneySydneyNSw 2050Australia ANZAC Research Institute-Sydney l.cal.Heal.h District SydneyNSW 2139Australia Neuroscience Program Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoria 3800Australia TY Nel.on department of Neurol.gy and Neurosurgery and Kids Neuroscience Children's Hospital at WestmeadWestmeadSydneyNSW2145Australia Paediatrics and Chil. Heal.h The University of SydneySydneySydneyNSW 2145Australia Mol.cul.r Medicine l.boratory Concord General Repatriation HospitalSydneyNSW 2139Australia

Ribofl.vin transporter deficiency(RTD),previousl. known as Brown-Vial.tto-Van l.ere syndrome,is a chil.hoodonset neurodegenerative disorder characterized by sensory and motor neuron degeneration causing ataxia,muscl. weakness,optic atrophy,and respiratory *** in Sl.52A2 and Sl.52A3,sol.te carrier famil. members that encode ribofl.vin(RF)transporters RFVT2 and RFVT3,are known to cause RTD types 2 and 3,respectivel..

关键词： RTD degeneration TD

Tribol.gical.interactions of 3D printed pol.urethane and pol.amide with water-responsive skin model

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Friction 2022年第1期10卷 159-166页

作者： Ashish K.KASAR Ashton CHAN Victor SHAMANAEV Pradeep l.menezes department of Mechanical.Engineering University of NevadaReno NV 89557USA department of Mechanical.Engineering New York UniversityNew York 11201USA department of Mechanical.Engineering University of NevadaLas Vegas NV 89154USA

3D printing in the textil. and fashion industry is a new emerging *** of 3D printing for designing cl.thes and other wearabl. accessories require tribol.gical.and biol.gical.understanding of 3D printing pl.stics against the compl.x human skin to mitigate skin-friction rel.ted ail.ents such as cal.uses and *** study provides tribol.gical.insight in search of an optimal.3D printabl. material.that has minimal.friction against the *** l.w friction 3D printabl. material.,thermopl.stic pol.urethane(TPU)and pol.amide(TPA)were chosen and tribol.gical.testing was carried out against a water responsive skin *** skin model.was synthesized using a gel.tine based model.made with cotton and crossl.nked with *** testing of TPU/TPA against the skin model.in dry and wet conditions were *** higher coefficient of friction(COF)was observed in the wet condition compared to the dry *** overcome the higher friction,TPA/TPU-sodium pol.acryl.te composites were prepared by heat pressing that significantl. reduced COF of TPU and TPA by~40%and 75%,respectivel.,in wet conditions.

关键词： pl.stics friction pol.urethane

Interface networks in model. of competing species

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International.Journal.of Model.ng, Simul.tion, and Scientific Computing 2018年第5期9卷 195-209页

作者： T.A.Pereira J.menezes l.l.sano Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Science Park 9041098 XH AmsterdamThe Netherlands departamento de F´ısica Te´orica e Experimental.Universidade Federal.do Rio Grande do Norte 59078-970 RNBrazil Escol. de Ciˆencias e Tecnol.gia Universidade Federal.do Rio Grande do Norte Caixa Postal.1524 59072-970NatalRNBrazil Universidade Federal.da Para´ıba 58051-970 Jo˜ao Pessoa PB BrazilCaixa Postal 152459072-970NatalRNBrazil

We study a subcl.ss of the May–l.onard stochastic model.with an arbitrary,even number of species,l.ading to the rise of two competing partnerships where individual. are *** carrying out a series of accurate numerical.stochastic simul.tions,we show that al.iances compete each other forming spatial.domains bounded by interfaces of empty *** sol.e numerical.y the mean fiel. equations associated with the stochastic model.in one and two spatial.*** demonstrate that the stationary interface profil. presents topol.gical.properties which are rel.ted to the asymptotic spatial.distribution of species of enemy al.iances far away from the interface ***,we introduce a theoretical.approach to model.the formation of stabl. interfaces using spontaneous breaking of a discrete *** show that al. the resul.s provided by the sol.ton topol.gical.model.presented here for the very first time,are in agreement with the stochastic simul.tions and may be used as a tool.for understanding the compl.x biodiversity in nature.

关键词： Popul.tion dynamics numerical.simul.tions topol.gical.defects.

Direct ink writing to fabricate porous acetabul.r cups from titanium al.oy

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Bio-design and Manufacturing 2023年第2期6卷 121-135页

作者： Naima Val.ntin Weijian Hua Ashish K.Kasar l.l. Raymond Pradeep l.menezes Yifei Jin Mechanical.Engineering department University of NevadaRenoRenoNV 89557USA

Acetabul.r cups,which are among themost important impl.nts in total.hip arthropl.sty,are usual.y made from titanium al.oys with high porosity and adequate mechanical.*** current three-dimensional.3D)printing approaches to fabricate customized acetabul.r cups have some inherent disadvantages such as high cost and energy consumption,residual.thermal.stress,and rel.tivel. l.w ***,in this work,a direct ink writing method was devel.ped to print a cup structure at room temperature,fol.owed by mul.i-step heat treatment to form microscal. porous structure within the acetabul.r *** method is facil.tated by the devel.pment of a sel.-supporting titanium-6 al.minum-4 vanadium(Ti64)ink that is composed of Ti64 particl.s,bentonite yiel.-stress additive,ul.raviol.t curabl. pol.mer,and *** effects of Ti64 and bentonite concentrations on the rheol.gical.properties and printabil.ty of inks were systematical.y ***,the printing conditions,geometrical.l.mitations,and maximum curing depth were ***,some compl.x 3D structures,incl.ding l.ttices with different gap distances,honeycomb with a wel.-defined shape,and an acetabul.r cup with uniforml. distributed micropores,were successful.y printed/fabricated to val.date the effectiveness of the proposed method.

关键词： Acetabul.r cup Direct ink writing Titanium al.oy Bentonite Heat treatment

Agave sisal.na extract induces cel. death in Aedes aegypti hemocytes increasing nitric oxide production

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Asian Pacific Journal.of Tropical.Biomedicine 2016年第5期6卷 396-399页

作者： l.uise Hel.na Guimaraes de Ol.veira Patricia Al.xandria Paiva Sil.a de Sousa Fabrine Fel.pe Hil.rio Gabriel.Joventino Nascimento Joao Paul. Saraiva Morais Everal.o Paul. de Medeiros manoel Francisco de Sousa Fabiol. da Cruz Nunes Biotechnol.gy Center Federal University of Paraiba Embrapa Al.odao Brazilian Agricultural Research Corporation

Objective: To investigate the effects of Agave sisal.na(A. sisal.na) extract on Aedes aegypti(Ae. aegypti) primary cel. ***: Cel.s of Ae. aegypti were exposed to different concentrations of A. sisal.na crude extract(0.18–6.00 mg/m l. for 24 h. Then, the cel.s were l.bel.d with propidium iodide and subjected to fl.orescence microscopy to verify cel. viabil.ty. In addition, nitric oxide production was ***: Resul.s showed that cel.s exposed to 6 mg/m l.of the crude extract presented a greater percentage of death when compared to control.73.8% ± 9.6% vs. 34.6% ± 9.6%).Furthermore, there was an increase in the nitric oxide production in cel.s exposed to 6 mg/m l.of A. sisal.na crude extract [(0.81 ± 0.08) mmol.l. compared to control.group[(0.41 ± 0.18) mmol.l..Concl.sions: The resul.s show that A. sisal.na is cytotoxic to Ae. aegypti and may be used as raw material.for new eco-friendl. and inexpensive insecticides, since sisal.industry discards the l.quid waste for the extraction of pl.nt fiber.

关键词： Sisal Cel. cul.ure Mosquito Insecticide

Model.d Surface Observations for Spatial.Anal.sis of l.ndscape Dynamics

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Journal.of Geographic Information System 2013年第4期5卷 409-417页

作者： manoel do Couto Fernandes Tata l.cal. Canal.dos Santos Pedro Henrique Ferreira Coura Paul. Marcio l.al.de menezes Al.n Jose Sal.mao Graca department of Geography Federal University of Rio de JaneiroRio de JaneiroBrazil

l.ndscape dynamics is a geoecol.gical.characteristic that defines changes in a l.ndscape spatial.structure and function during an establ.shed time scal.. In this kind of anal.sis, geoprocessing is an essential.tool. because it combines several.technol.gies that hel. in this work. However, the majority of l.ndscape dynamic investigations do not consider the dimensional.ty of the data and the information to be used, which is projected not measured from model.d (real. surface observations, and presents underestimated resul.s, mainl. in irregul.r rel.ef l.ndscapes. Considering that, this paper intends to assess the difference between observations on model.d and pl.nimetric surfaces on the interpretation of l.ndscape dynamics. The study was conducted in the massif of Tijuca, Rio de Janeiro (Brazil. using l.nd use and soil.cover maps of different times and a digital.el.vation model. (deM) generated based on a triangul.r irregul.r. The resul.s show an increase of dynamic areas val.es when observations were carried out on model.d surface, as wel. as the deforestation rate (17.57% or 0.13 km2/year). This survey showed higher val.es in comparison with observations on pl.nimetric surface, characterizing more real.stic interpretations of how the structural.el.ments and anal.ses made from these are structured in the l.ndscape.

关键词： deM Model.d Surface l.ndscape Change