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| 1 | Naphthenic corrosion resistance, mechanical properties and microstructure evolution of experimental Cr-Mo steels with high Mo content 显示文摘 | Lorena Braga Moural Rodrigo Freitas Guimaraesl Hamihon Ferreira Gomes de Abreul | 2012 | Material Research2012，15，2： | 1 |
| 2 | Multipotent mesenchymal stromal cells obtained from diverse human tissues share functional properties and gene-expression profile with CD146 + perivascular cells and fibroblasts显示文摘 | Dimas T. Covas Rodrigo A. Panepucci Aparecida M. Fontes Wilson A. Silva Maristela D. Orellana Marcela C.C. Freitas Luciano Neder Anemari R.D. Santos Luiz C. Peres Maria C. Jamur Marco A. Zago | 2008 | Experimental Hematology2008，，5： | 1 |
| 3 | Quantum effects on dislocation motion from ring-polymer molecular dynamics显示文摘Quantum motion of atoms known as zero-point vibration was recently proposed to explain a long-standing discrepancy between theoretically computed and experimentally measured low-temperature plastic strength of iron and possibly other metals with high atomic masses.This finding challenges the traditional notion that quantum motion of atoms is relatively unimportant in solids comprised of heavy atoms.Here we report quantum dynamic simulations of quantum effects on dislocation motion within the exact formalism of Ring-Polymer Molecular Dynamics(RPMD).To extend the reach of quantum atomistic simulations to length and time scales relevant for extended defects in materials,we implemented RPMD in the open-source code LAMMPS thus making the RPMD method widely available to the community.We use our RPMD/LAMMPS approach for direct calculations of dislocation mobility and its effects on the yield strength ofα-iron.Our simulation results establish that quantum effects are noticeable at temperatures below 50 K but account for only a modest(≈13% at T=0 K)overall reduction in the Peierls barrier,at variance with the factor of two reduction predicted earlier based on the more approximate framework of harmonic transition state theory.Our results confirm that zero-point vibrations provide ample additional agitation for atomic motion that increases with decreasing temperature,however its enhancing effect on dislocation mobility is largely offset by an increase in the effective atom size,an effect known as quantum dispersion that has not been accounted for in the previous calculations. | Rodrigo Freitas Mark Asta Vasily V.Bulatov | 2018 | npj Computational Materials2018，，1： | 1 |
| 4 | Evolutionary Design of Decision--Tree Algo- rithms Tailored to Microarray Gene Expression Data Sets显示文摘 | Barros Rodrigo C Basgalupp Marcio P Freitas Alex A | 2014 | IEEE Transactions on Evolutionary Compu- tation2014，18，6： | 1 |
| 5 | Thermal Bridges Impact on Energy Consumption in Residential Buildings Considering the Brazilian Bioclimatic Zoning显示文摘 | Eduardo Grala da Cunha Julye Ramalho de Freitas Beatriz Echenique Gioielli Rodrigo Karini Leitzke Letiane Beninca | 2016 | Journal of Civil Engineering and Architecture2016，10，10： | 0 |
| 6 | Cerrado:Agricultural Production and Areas Designated for Environmental Preservation Registered in the Brazilian Rural Environmental Registry(Cadastro Ambiental Rural)显示文摘In this study,authors analyzed value,production and area used for producing Cerrado’s main agricultural products,and data on the farms located within this biome and registered in CAR up until April 2019,by microregion.The territory considered here comprised all microregions with at least 25%of its area covered by the Cerrado biome.The production,agricultural production,and planted area values used were the averages of the 2015 to 2017 harvests,and are shown in graphs and tables,as are maps of planted areas and groups of main annual crops,semi-perennial and perennial crops.The areas designated for environmental preservation(ADPs)are the result of the sum of permanent preservation areas(APP),legal reserves(RL)and additional vegetation areas within the farms.Authors’study shows that most of Brazilian cotton,eucalyptus for charcoal,orange,sugarcane,maize and soybean are produced in Cerrado,that 28%of Cerrado are ADPs within farms,and that 16%are areas planted with cotton,eucalyptus,orange,sugarcane,maize,soybean,coffee,beans,and potatoes.The territory occupied by agricultural areas and ADPs required by the Brazilian Forest Code shows that agricultural production and environmental preservation do coexist,and gather the maintenance of essential ecosystem services provided by the ADPs together with the development of the country’s relevant agricultural production. | Gisele Freitas Vilela AndréRodrigo Farias Fernando Antônio de Pádua Paim Gustavo Spadotti ACastro Osvaldo Tadatomo Oshiro Carlos Alberto de Carvalho | 2020 | Journal of Environmental Science and Engineering(B)2020，9，3： | 0 |
| 7 | Clay mineralogy affects the efficiency of sewage sludge in reducing lead retention of soils显示文摘Recent studies have shown the feasibility of using of sewage sludge for the remediation of heavy metal-contaminated soils. However, there are no researches to check the influence of clay mineralogy on the efficiency of the sewage sludge to remediation of contaminated soils with heavy metals. For this purpose, we use two contrasting soils:Oxisol rich in hematite and gibbsite and Inceptisol rich in kaolinite. Thermal-treated sludge was applied to Pb-contaminated soil samples and incubated for 40 days. The soil samples were submitted to seven sequential extractions: soluble-Pb, exchangeable-Pb,precipitated-Pb, organic matter-Pb, Fe and Mn oxide-Pb, gibbsite and kaolinite-Pb, and residual-Pb. The reduction of soluble Pb forms by thermal sludge application was more pronounced in the Oxisol than in the Inceptisol because of the conversion of soluble-Pb into more stable forms, such as precipitated-Pb and oxides-Pb. For Inceptisol was necessary to apply high rates of thermal sludge to reach a significant reduction in soluble-Pb contents. The addition of humic fractions in the form of thermal sludge increased the concentration of organic matter-Pb. In confined area, the use of sewage sludge to reduce the heavy metals levels in soils must be better considered, mainly in more weathered soils. | Giovana Clarice Poggere Vander Freitas Melo Beatriz Monte Serrat Ant?nio Salvio Mangrich Amanda Araújo Fran?a Rodrigo Stuart Corrêa Julierme Zimmer Barbosa | 2019 | Journal of Environmental Sciences2019，31，6： | 0 |
| 8 | Electromagnetic Zero-Sequence Harmonics Blocker: Modeling and Experimental Analysis显示文摘 | Luis C. Origa de Oliveira Rodrigo N. de Oliveira Julio B. de Souza Stefani C. L. de Freitas | 2014 | Journal of Energy and Power Engineering2014，8，8： | 0 |
| 9 | Biofilm analyses and exoproduct release by clinical and environmental isolates of Burkholderia pseudomallei from Brazil显示文摘Objective:To characterize biofilm production by clinical(n=21)and environmental(n=11)isolates of Burkholderia pseudomallei and evaluate the production of proteases,hemolysins and siderophores.Methods:Initially,the 32 strains were evaluated for biofilm production in Müller-Hinton broth-1%glucose(MH-1%glucose)and BHI broth-1%glucose,using the crystal violet staining technique.Subsequently,growing(48 h)and mature(72 h)biofilms were evaluated by confocal microscopy.Finally,the production of proteases,hemolysins and siderophores by planktonic aggregates,growing biofilms and mature biofilms was evaluated.Results:All isolates produced biofilms,but clinical isolates had significantly higher biomass in both MH-1%glucose(P<0.001)and BHI-glucose 1%(P=0.005).The structural analyses by confocal microscopy showed thick biofilms,composed of multiple layers of cells,homogeneously arranged,with mature biofilms of clinical isolates presenting higher biomass(P=0.019)and thickness of the entire area(P=0.029),and lower roughness coefficient(P=0.007)than those of environmental isolates.Protease production by growing biofilms was significantly greater than that of planktonic(P<0.001)and mature biofilms(P<0.001).Hemolysin release by planktonic aggregates was higher than that of biofilms(P<0.001).Regarding siderophores,mature biofilms presented higher production than growing biofilms(P<0.001)and planktonic aggregates(P<0.001).Conclusions:Clinical isolates have higher production of biofilms than their environmental counterparts;protease and siderophores seem important for growth and maintenance of Burkholderia pseudomallei biofilms. | Glaucia Morgana de Melo Guedes Crister JoséOcadaque Alyne Soares Freitas Rodrigo Machado Pinheiro Giovanna Barbosa Riello Silviane Praciano Bandeira Rossana de Aguiar Cordeiro Marcos Fábio Gadelha Rocha JoséJúlio Costa Sidrim Débora de Souza Collares Maia Castelo-Branco | 2023 | Asian Pacific Journal of Tropical Medicine2023，16，7： | 0 |
| 10 | Optimization of the Traditional Method for Creating a Weather Simulation file:The Pelotas.epw Case显示文摘The basic assumption of an energy-efficient project is the proper relation with the local climatic context.To analyse a building’s performance before its construction,it is necessary that the object to be designed is recreated in a virtual environment,to evaluate its thermal balance.In order to recreate this virtual environment,it is necessary to use computer programs,and that requires a file composed of a weather database organized hourly in a specific year and defined,in the case of this article,from a TRY(test reference year).The objective of this study is to prepare a weather file for the city of Pelotas,RS,Brazil.This research was structured in five stages.In the first stage,the TRY was determined.In the second stage,the necessary variables for the preparation of the weather file to be used in the programs EnergyPlus?and Design Builder?were created and treated.In the third stage,weather files were prepared in.epw and.try formats.In the fourth stage,the weather file generated was simulated and compared with two other weather files belonging to the same bioclimatic zone.In the fifth and last stage,a typical day was elaborated for the city of Pelotas.As a result,the importance of optimization of the EPW generation process based on algorithms was highlighted.It was also verified that although we have three nearby cities with similar characteristics,it is possible to have differences of simulation results when the appropriate weather file is not used. | Rodrigo Karini Leitzke Carolina Machado Beltrame Julye Ramalho de Freitas Juliana Neumann Seixas Thalita dos Santos Maciel Eduardo Grala da Cunha Paulo Afonso Rheingantz | 2018 | Journal of Civil Engineering and Architecture2018，12，10： | 0 |
| 11 | Recycling process and proto-kimberlite melt metasomatism in the lithosphere-asthenosphere boundary beneath the Amazonian Craton recorded by garnet xenocrysts and mantle xenoliths from the Carolina kimberlite显示文摘Here we present new data on the major and trace element compositions of silicate and oxide minerals from mantle xenoliths brought to the surface by the Carolina kimberlite,Pimenta Bueno Kimberlitic Field,which is located on the southwestern border of the Amazonian Craton.We also present Sr-Nd isotopic data of garnet xenocrysts and whole-rocks from the Carolina kimberlite.Mantle xenoliths are mainly clinopyroxenites and garnetites.Some of the clinopyroxenites were classified as GPP–PP–PKP(garnet-phlogopite peridotite,phlogopite-peridotite,phlogopite-K-richterite peridotite)suites,and two clinopyroxenites(eclogites)and two garnetites are relicts of an ancient subducted slab.Temperature and pressure estimates yield 855–1102℃ and 3.6–7.0 GPa,respectively.Clinopyroxenes are enriched in light rare earth elements(LREE)(La_(N)/Yb_(N)=5–62;Ce_(N)/Sm_(N)=1–3;where N=primitive mantle normalized values),they have high Ca/Al ratios(10–410),low to medium Ti/Eu ratios(742–2840),and low Zr/Hf ratios(13–26),which suggest they were formed by metasomatic reactions with CO_(2)-rich silicate melts.Phlogopite with high TiO_(2)(>2.0 wt.%),Al_(2)O_(3)(>12.0 wt.%),and FeOt(5.0–13.0 wt.%)resemble those found in the groundmass of kimberlites,lamproites and lamprophyres.Conversely,phlogopite with low TiO_(2)(<1.0 wt.%)and lower Al_(2)O_(3)(<12.0 wt.%)are similar to those present in GPP-PP-PKP,and in MARID(mica-amphibole-rutile-ilmenite-diopside)and PIC(phlogopite-ilmenite-clinopyorxene)xenoliths.The GPP-PP-PKP suite of xenoliths,together with the clinopyroxene and phlogopite major and trace element signatures suggests that an intense proto-kimberlite melt metasomatism occurred in the deep cratonic lithosphere beneath the Amazonian Craton.The Sr-Nd isotopic ratios of pyrope xenocrysts(G3,G9 and G11)from the Carolina kimberlite are characterized by high ^(143)Nd/^(144)Nd(0.51287–0.51371)and eNd(+4.55 to+20.85)accompanied with enriched ^(87)Sr/^(86)Sr(0.70405–0.71098).These results suggest interaction with a proto-kimberlite melt compositionally similar with worldwide kimberlites.Based on Sr-Nd whole-rock compositions,the Carolina kimberlite has affinity with Group 1 kimberlites.The Sm-Nd isochron age calculated with selected eclogitic garnets yielded an age of 291.9±5.4 Ma(2σ),which represents the cooling age after the proto-kimberlite melt metasomatism.Therefore,we propose that the lithospheric mantle beneath the Amazonian Craton records the Paleozoic subduction with the attachment of an eclogitic slab into the cratonic mantle(garnetites and eclogites);with a later metasomatic event caused by proto-kimberlite melts shortly before the Carolina kimberlite erupted. | Fernanda Gervasoni Tiago Jalowitzki Marcelo Peres Rocha Ricardo Kalikowski Weska Eduardo Novais-Rodrigues Rodrigo Antonio de Freitas Rodrigues Yannick Bussweiler Elisa Soares Rocha Barbosa Jasper Berndt Elton Luiz Dantas Valmir da Silva Souza Stephan Klemme | 2022 | Geoscience Frontiers2022，13，5： | 0 |
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