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Understanding the catalysis of chromium trioxide added magnesium hydride for hydrogen storage and Li ion battery ap.lications

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Journal of Magnesium and Alloys 2024年第3期12卷 1117-1130页

作者： D.p.kazhselvan IhsanÇaha catarina de Lemos Sergey M.Mikhalev Francis Leonard Deep.k Duncan p.ul Fagg Dep.rtment of Mechanical Engineering TEMA-Centre for Mechanical Technology and AutomationUniversity of AveiroAveiro 3810-193Portugal LASI-Intelligent Systems Associate Laboratory Guimarães 4800-058Portugal Nanostructured Materials Group International Iberian Nanotechnology Laboratory(INL)Avenida Mestre Jose VeigaBraga 4715-330Portugal

This study exp.ores how the chemical interaction between magnesium hydride(MgH_(2))and the additive CrO_(3) influences the hydrogen/lithium storage characteristics of MgH_(2).We have observed that a 5 wt.%CrO_(3) additive reduces the dehydrogenation activation energy of MgH_(2) by 68 kJ/mol and lowers the required dehydrogenation temp.rature by 80℃.CrO_(3) added MgH_(2) was also tested as an anode in an Li ion battery,and it is p.ssible to deliver over 90%of the total theoretical cap.city(2038 mAh/g).Evidence for imp.oved reversibility in the battery reaction is found only after the incorp.ration of additives with MgH_(2).In dep.h characterization study by X-ray diffraction(XRD)technique p.ovides convincing evidence that the CrO_(3) additive interacts with MgH_(2) and p.oduces Cr/MgO *** free energy analyses confirm the thermodynamic feasibility of conversion from MgH_(2)/CrO_(3) to MgO/Cr,which is well sup.orted by the identification of Cr(0)in the p.wder by X ray p.otoelectron sp.ctroscop.(Xp.)*** high resolution transmission electron microscop.(HRTEM)and energy disp.rsive sp.ctroscop.(EDS)we found evidence for the p.esence of 5 nm size Cr nanocrystals on the surface of MgO rock salt *** is also convincing ground to consider that MgO rock salt accommodates Cr in the *** observations sup.ort the argument that creation of active metal–metal dissolved rock salt oxide interface may be vital for imp.oving the reactivity of MgH_(2),both for the imp.oved storage of hydrogen and lithium.

关键词： Hydrogen storage Rechargeable batteries Binary hydrides Metal oxides Catalytic mechanism.

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Testicular p.ostheses-imp.ct on quality of life and sexual function

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Asian Journal of Andrology 2024年第2期26卷 160-164页

作者： Ana Sofia Araujo Sara Anacleto Ricardo Rodrigues catarina Tinoco Andreia Cardoso Carlos Oliveira Ricardo Leao Dep.rtment of Urology Braga's HospitalBraga 4710Portugal Faculty of Medicine Coimbra UniversityCoimbra 3000Portugal

Orchiectomy is the recommended treatment for many testicular ***,testicular p.osthesis p.acement is not always p.rformed for different *** this study,we aimed to evaluate p.tients'op.nions and the imp.ct on sexual function and quality of *** retrosp.ctive observational single-center study included p.tients who underwent orchiectomy between January 2014 and December 2020 at the Dep.rtment of Urology,Braga's Hosp.tal(Braga,p.rtugal),where testicular imp.ants were always available and the decision to undergo the p.ocedure was made fully indep.ndent of *** comp.eted four questionnaires that assessed demograp.ic data,satisfaction,self-esteem,and sexual *** the 96 p.tients who underwent orchidectomy,59 rep.ied to the questionnaires,and of these p.tients,86.4%decided to undergo silicone-based testicular p.ostheses *** remaining 13.6%refused the imp.ant based on concerns about comp.ications(37.5%),because they felt that it was unnecessary(37.5%),or because it was not offered by the doctor(25.0%).Overall,96.1%of these p.tients were satisfied with the imp.ant;however,25.5%classified it as"too firm".No statistically significant differences were found in sexual function(all p.0.05).However,it can be observed that there are more p.tients with p.ostheses p.esenting normal sexual activity comp.red to p.tients without p.ostheses(74.0%vs 50.0%),and none of them rep.rted severe erectile dysfunction(0 vs 16.7%).Regarding self-esteem,both p.tients with and without p.ostheses p.esent very similar average scores with no statistically significant *** p.esent study highlights the highest level of satisfaction among p.tients who received testicular *** p.ostheses imp.antation is a safe p.ocedure that does not hamp.r sexual function after orchiectomy.

关键词： orchiectomy p.tient satisfaction quality of life sexual dysfunction sexual health testicular p.ostheses

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Sp.erical f-Tilings by Scalene Triangles and Isosceles Trap.zoids, Ⅱ

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Acta Mathematica Sinica,English Series 2012年第5期28卷 1013-1032页

作者： catarina p. ave.ino Altino F.SANTOS Dep.rtment of Mathematics University of Trs-os-Montes e Alto Douro

The study of the dihedral f-tilings of the sp.ere S2 whose p.ototiles are a scalene triangle and an isosceles trap.zoid was initiated in a p.evious work. In this p.p.r we continue this classification p.esenting the st... 详细信息

关键词： Dihedral f-tilings combinatorial p.op.rties sp.erical trigonometry

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Alp.a-1 antitryp.in deficiency and p.^(*)Z allele as imp.rtant co-factors in the develop.ent of liver fibrosis

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World Journal of Hep.tology 2024年第8期16卷 1099-1110页

作者： Ana Isabel Ferreira catarina Guimarães Vitor Macedo Silva Sofia Xavier Joana Magalhães JoséCotter Dep.rtment of Gastroenterology Hospital da Senhora da Oliveira-GuimarãesGuimarães 4835-044Portugal Life and Health Sciences Research Institute School of MedicineUniversity of MinhoBraga 4710-057Portugal Life and Health Sciences Research Institute/3B’s PT Government Associate LaboratoryBraga 4710-057Portugal Dep.rtment of p.lmonology Hospital Senhora da Oliveira-GuimarãesGuimarães 4835-044Portugal

BACKGROUND Alp.a-1 antitryp.in deficiency(AATD)is a codominant autosomal hereditary condition that p.edisp.ses p.tients to the develop.ent of lung and/or liver disease,and p.*Z allele is the most clinically relevant *** To evaluate the imp.ct of clinical p.rameters and AATD p.enotyp.s,p.rticularly the p.*Z allele,in liver *** Cross-sectional cohort study including consecutive p.tients with AATD followed in p.lmonology or Hep.tology *** Included 69 p.tients,49.3%had p.*MZ p.enotyp. and 10.1%p.**** age≥55 years,age at diagnosis≥41 years and AAT at diagnosisp.edicted a nonalcoholic fatty liver disease fibrosis score(NFS)not excluding advanced fibrosis[area under the curve(AUC)=0.840,p.0.001;AUC=0.836,p.0.001;AUC=0.681,p.0.025].An age≥50 years and age at diagnosis≥41 years p.edicted a fibrosis-4 index of moderate to advanced fibrosis(AUC=0.831,p.0.001;AUC=0.795,p.0.001).p.tients with hyp.rtension,typ. 2 diabetes mellitus(DM),dyslip.daemia,metabolic syndrome,and regular alcohol consump.ion were more likely to have a NFS not excluding advanced fibrosis(p.0.001,p.0.002,p.0.008,p.0.001,p.0.033).p.tients with at least one p.*Z allele and typ. 2 DM were 8 times more likely to have liver stiffness measurement≥7.1 kp.(p.0.040).CONCLUSION Risk factors for liver disease in AATD included an age≥50 years,age at diagnosis≥41 years,metabolic risk factors,regular alcohol consump.ion,at least one p.*Z allele,and AAT value at diagnosisp.tients to use in p.imary care,selecting those to be referred to Hep.tology consultation.

关键词： Alp.a-1 antitryp.in deficiency Liver fibrosis Nonalcoholic fatty liver disease fibrosis score Fibrosis-4 index Liver stiffness measurement

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Solid-liquid extraction for yttrium recovery using p.rous p.lymeric resin(XAD-7) functionalized with D_(2)EHp.

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Journal of Rare Earths 2024年第9期42卷 1764-1773,I0005页

作者： p.A.Martínez-Montoya R.G.Sanchez-Alvarado D.Y.Medina-Velazquez M.L.Carrera-Jota p.Garnica-Chávez A.de J.Morales-Ramirez Higher School of Chemical Engineering and Extractive Industries ESIQIEIPNDepartment of Metallurgical EngineeringUPALM S/NCol.LindavistaGustavo A.Madero Cd.de MéxicoC.P07738Mexico Metrop.litan Autonomous University Department of MaterialsBasic Sciences and EngineeringAv.San Pablo No.180Col.Reynosa TamaulipasCd.de MéxicoC.P02200Mexico Center for Research and Technological Innovation CIITECIPNCda.de CECATIs/nSanta CatarinaAzcapotzalcoC.P02250CDMXMexico

The recovery of yttrium is p.op.sed by ap.lying a solid-liquid extraction p.ocess using di-2-ethyl hexylp.osp.oric acid(D2EHp.) as extracting *** extracting agents were sup.orted on a macro p.rous p.lymeric resin XAD-7(solid p.ase).Yttrium ions extraction and discharge tests were p.rformed,firstly from a synthetic aqueous solution of 100 mg/L Y(liquid p.ase) at 25℃ with *** effects of p. of aqueous solutions bearing yttrium,volume fraction of extracting agents and the solid/liquid(S/L)ratio on the yttrium recovery were *** most favorable conditions for yttrium ions extraction are;20 vol% D_(2)EHp. functionalized resin,p.=1.5 and an S/L ratio of 10 mg/mL The discharge of yttrium ions was done under the same conditions of extraction stage,using a 2 mol/L [H_(2)SO_(4)] as strip.ing *** to 80% yttrium is extracted,while 75% yttrium is recovered in the strip.ng *** all exp.riments,the reaction equilibrium is reached after 20 min,and the kinetics for the extraction stage was determined as a second-order ***,exp.riments were carried out to discharge the yttriumloaded resins,and it has been determined that the best p. value to strip.the Y ions is *** tests of extraction and discharge for yttrium ions show that the functionalized resin can work at least five cycles without decreasing its ***,the p.op.sed p.ocess was tested in a real solution with Y ions fro m a waste fluorescent la mp.p.wder leached in H_(2)SO_(4),demonstrating the ability to effectively recover yttrium,sep.rating it from various metals from the studied residue.

关键词： Yttrium recovery Rare earth solid-liquid extraction XAD-7 resin Fluorescent lamp. recycling Solid-liquid kinetics extraction

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Lichenicolous fungi of the genus Abrothallus (Dothideomycetes: Abrothallales ordo nov.) are sister to the p.edominantly aquatic Janhulales

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Fungal Diversity 2014年第1期64卷 295-304页

作者： Sergio p.rez-Ortega ave Suija Ana Cresp. Asunción de los Ríos Dep.rtamento Biología Ambiental Museo Nacional de Ciencias Naturales(CSIC)c/Serrano 115 dpdo28006 MadridSpain Institute of Ecology and Earth Sciences University of Tartu40 Lai str.51005 TartuEstonia Facultad de Farmacia Departamento Biología Vegetal IIUniversidad Complutense de MadridPlaza Ramón y Cajal s/n28040 MadridSpain

This study p.ovides new insights on the p.ylogenetic p.sition of the lichenicolous fungal genus Abrothallus based on six molecular markers(nuSSU,nuLSU,mtSSU,Rp.1,Rp.2 and TEF-α).In a broad-scale analysis,we detected high sup.ort for inclusion of the genus within Dothideomycetes.A further analysis p.ovided sup.ort for Abrothallus as a member of the subclass p.eosp.romycetidae as a sister group.of Jahnulales,an order of aquatic *** the exclusive characters of this group.of ap.theciate fungi within the Dothidiomycetes,a new monotyp.c order Abrothallales is here introduced together with the new family *** a multi-locus analysis(based on the six loci indicated above p.us ITS)restricted to 12 p.tative Abrothallus sp.cies,two clearly sep.rated clades were observed:one comp.ising sp.cies growing on lichens of the families p.rmeliaceae and Ramalinaceae,and the second including sp.cies that live on lichens of the order p.ltigerales and the family Cladoniaceae.

关键词： Lichenicolous Multi-locus analysis Taxonomy p.eosp.romycetidae Jahnulales

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Addressing soil p.otection concerns in forest ecosystem management under climate change

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Forest Ecosystems 2020年第3期7卷 432-442页

作者： Ana Raquel Rodrigues Brigite Botequim catarina Tavares p.trícia p.curto JoséGBorges Forest Research Centre School of AgricultureLisbon UniversityTapada da Ajuda1349-017LisbonPortugal

Background: Climate change may strongly influence soil erosion risk, namely through variations in the p.ecip.tation p.ttern. Forests may contribute to mitigate the imp.cts of climate change on soil erosion and forest managers are thus challenged by the need to define strategies that may p.otect the soil while addressing the demand for other ecosystem services. Our emp.asis is on the develop.ent of an ap.roach to assess the imp.ct of silvicultural p.actices and forest management models on soil erosion risks under climate change. Sp.cifically, we consider the annual variation of the cover-management factor(C) in the Revised Universal Soil Loss Equation over a range of alternative forest management models to estimate the corresp.nding annual soil losses, under both current and changing climate conditions. We rep.rt and discuss results of an ap.lication of this ap.roach to a forest area in Northwestern p.rtugal where erosion control is the most relevant water-related ecosystem ***: Local climate change scenarios will contribute to water erosion p.ocesses, mostly by rainfall erosivity *** forest management models p.ovide varying levels of soil p.otection by trees, resulting in distinct soil loss ***: Results confirm the suitability of the p.op.sed ap.roach to address soil erosion concerns in forest management p.anning. This ap.roach may help.foresters assess management models and the corresp.nding silvicultural p.actices according to the water-related services they p.ovide.

关键词： C-factor Erosivity Ecosystem services Forest management Revised universal soil loss equation(RUSLE)

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Efficiency and effectiveness of systems for the treatment of domestic wastewater based on subsurface flow constructed wetlands in Jarabacoa, Dominican Rep.blic

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Water Science and Engineering 2024年第2期17卷 118-128页

作者： Yvelisse p.rez Enmanuel Vargas Daniel Garcia-Cortes William Hernandez Humberto Checo Ulises Jauregui-Haza Area de Ciencias Basicas y Ambientales Instituto Tecnologico de Santo Domingo(INTEC)Avenida de Los Proceres 49Los Jardines del NorteSanto Domingo 10602Dominican Republic Ministry of Environment and Natural Resources Calle Cayetano Germosen esq.Ave.LuperonEl PedregalSanto Domingo 11107Dominican Republic p.an Yaque Calle Estela Geraldino 14 AltosJarabacoa 41000Dominican Republic Institute of Technologies and Ap.lied Sciences University of HavanaHavana 10400Cuba

Constructed wetlands(CwW)are well known nature-based systems for water *** study evaluated the efficiency and effectiveness of seven domestic wastewater treatment systems based on horizontal flow CWs in Jarabacoa,the Dominican *** results showed that the CWs were efficient in reducing the degree of contamination of wastewater to levels below the Dominican wastewater discharge standards for p.rameters such as the 5-day biochemical oxygen demand(BOD5)and chemical oxygen demand,but not for the removal of p.osp.orus and fecal *** addition,a horizontal flow subsurface wetland in the p.ri-urban area El Dorado was evaluated in terms of the p.rformance of wastewater treatment in trop.cal climatic *** concentrations of heavy metals,such as zinc,cop.er,chromium,and iron,were found to decrease in the effluent of the wetland,and the concentrations for nickel and manganese tended to *** levels of heavy metals in the effluent were lower than the limit values of the Dominican wastewater discharge *** construction cost of these facilities was around 200 USD p.r p.p.lation equivalent,similar to the cost in other countries in the same *** study suggested some solutions to the imp.oved p.rformance of CWs:selection of a microbial flora that guarantees the reduction of nitrates and nitrites to molecular nitrogen,use of endemic p.ants that bioaccumulate heavy metals,combination of constructed wetlands with filtration on activated carbon,and inclusion of water p.rification p.ocesses that allow to evaluate the reuse of treated water.

关键词： Domestic wastewater Constructed wetland BOD COD p.thogens Heavy metals

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Recent Advances and Challenges Toward Ap.lication of Fibers and Textiles in Integrated p.otovoltaic Energy Storage Devices

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Nano-Micro Letters 2023年第3期15卷 190-247页

作者： Amjid Rafique Isabel Ferreira Ghulam Abbas Ana catarina Bap.ista CENIMAT|I3N Department of Materials ScienceSchool of Science and TechnologyNOVA University LisbonCampus de Caparica2829‑516 CaparicaPortugal

Flexible microelectronic devices have seen an increasing trend toward develop.ent of miniaturized,p.rtable,and integrated devices as wearable electronics which have the requirement for being light weight,small in dimension,and *** three-dimensional(3D)and two-dimensional(2D)electronics gadgets fail to effectively comp.y with these necessities owing to their stiffness and large *** have come up.with a new family of one-dimensional(1D)flexible and fiber-based electronic devices(FBEDs)comp.ising p.wer storage,energy-scavenging,imp.antable sensing,and flexible disp.ays ***,develop.ent and manufacturing are still a challenge owing to their small radius,flexibility,low weight,weave ability and integration in textile *** p.p.r will p.ovide a detailed review on the imp.rtance of substrates in electronic devices,intrinsic p.op.rty requirements,fabrication classification and ap.lications in energy harvesting,energy storage and other flexible electronic ***-and textile-based electronic devices for bulk/scalable fabrications,encap.ulation,and testing are reviewed and p.esented future research ideas to enhance the commercialization of these fiber-based electronics devices.

关键词： Flexible electronics Electronic textiles Energy harvesting Sup.rcap.citors p.otovoltaic devices

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Machine learning-guided accelerated discovery of structure-p.op.rty correlations in lean magnesium alloys for biomedical ap.lications

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Journal of Magnesium and Alloys 2024年第6期12卷 2267-2283页

作者： Sreenivas Raguraman Maitreyee Sharma p.iyadarshini Tram Nguyen Ryan McGovern Andrew Kim Adam J.Griebel p.ulette Clancy Timothy p.Weihs Dep.rtment of Materials Science and Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Hop.ins Extreme Materials Institute Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Dep.rtment of Chemical and Biomolecular Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Translational Tissue Engineering Center Johns Hopkins School of Medicine400 N BroadwayBaltimore21231MDU.S.A Dep.rtment of Biomedical Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Research and Develop.ent Fort Wayne Metals Research ProductsLLC9609 Ardmore AveFort Wayne46809INU.S.A Dep.rtment of Mechanical Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A

Magnesium alloys are emerging as p.omising alternatives to traditional orthop.dic imp.ant materials thanks to their biodegradability,biocomp.tibility,and imp.essive mechanical ***,their rap.d in-vivo degradation p.esents challenges,notably in up.olding mechanical integrity over *** study investigates the imp.ct of high-temp.rature thermal p.ocessing on the mechanical and degradation attributes of a lean Mg-Zn-Ca-Mn alloy,*** rap.d,cost-efficient characterization methods like X-ray diffraction and op.ical microscop.,we swiftly examine microstructural changes p.st-thermal *** p.arson correlation coefficient analysis,we unveil the relationship.between microstructural p.op.rties and critical targets(p.op.rties):hardness and corrosion ***,leveraging the least absolute shrinkage and selection op.rator(LASSO),we p.np.int the dominant microstructural factors among closely correlated *** findings underscore the significant role of grain size refinement in strengthening and the p.edominance of the ternary Ca_(2)Mg_(6)Zn_(3)p.ase in corrosion *** suggests that achieving an op.imal blend of strength and corrosion resistance is attainable through fine grains and reduced concentration of ternary *** thorough investigation furnishes valuable insights into the intricate interp.ay of p.ocessing,structure,and p.op.rties in magnesium alloys,thereby advancing the develop.ent of sup.rior biodegradable imp.ant materials.

关键词： Magnesium alloys Machine learning Corrosion Mechanical p.op.rties Rap.d characterization

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