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Hydrocarbon indication in Rio bonito Formation sandstone:Implication for CO_(2)storage in São Paulo,brazil

Energy Geoscience 2024年第1期5卷 331-341页

作者： Richardson M.Abraham-A Haline V.Rocha saulo b.de oliveira Colombo C.G.Tassinarri Orlando C.da Silva Institute of Energy and Environment University of São PauloSão PauloBrazil Research Centre for Greenhouse Gas Innovation University of São PauloSão PauloBrazil

São Paulo State has witnessed CO_(2)storage-based investigations considering the availability of suitable geologic structures and proximity to primary CO_(2)source sinks related to bioenergy and carbon capture and storage(bECCS)*** current study presents the hydrocarbon viability evaluations and CO_(2)storage prospects,focusing on the sandstone units of the Rio bonito *** objective is to apply petrophysical evaluations with geochemical inputs in predicting future hydrocarbon(gas)production to boost CO_(2)storage within the study *** study used data from eleven wells with associated wireline logs(gamma ray,resistivity,density,neutron,and sonic)to predict potential hydrocarbon accumulation and fluid mobility in the investigated *** samples(shale and carbonate)obtained from depths>200 m within the study location have shown bitumen *** geochemistry data of the Rio bonito Formation shale beds suggest they are potential hydrocarbon source rocks and could have contributed to the gas accumulations within the sandstone *** drilled well data,e.g.,Cb-1-SP and TI-1-SP,show hydrocarbon(gas)presence based on the typical resistivity and the combined neutron-density responses at depths up to 3400 m,indicating the possibility of other hydrocarbon members apart from the heavy oil(bitumen)observed from the near-surface rocks *** the three-dimensional(3-D)model,the free fluid indicator(FFI)is more significant towards the southwest and southeast of the area with deeper depths of occurrence,indicating portions with reasonable hydrocarbon recovery rates and good prospects for CO_(2)injection,circulation and permanent ***,future studies based on contemporary datasets are required to establish the hydrocarbon viability further,foster gas production events,and enhance CO_(2)storage possibilities within the region.

关键词： Paranábasin Hydrocarbon indication Sandstone reservoirs Rio bonito Formation CO_(2)storage Hydrocarbon recovery factor Fluid injection rate

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A Numerical Comparison between Quasi-Monte Carlo and Sparse Grid Stochastic Collocation Methods

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Communications in Computational Physics 2012年第9期12卷 1051-1069页

作者： Juarez dos Santos Azevedo saulo Pomponet oliveira CETEC-UFRb Centro44380-000Cruz das Almas-BABrazil.2 DMAT-UFPRCentro Politecnico81531-980Curitiba-PRBrazil

Quasi-Monte Carlo methods and stochastic collocation methods based on sparse grids have become popular with solving stochastic partial differential *** methods use deterministic points for multi-dimensional integration or interpolation without suffering from the curse of *** is not evident which method is best,specially on random models of physical *** numerically study the error of quasi-Monte Carlo and sparse gridmethods in the context of groundwater flow in heterogeneous *** particular,we consider the dependence of the variance error on the stochastic dimension and the number of samples/collocation points for steady flow problems in which the hydraulic conductivity is a lognormal *** suitability of each technique is identified in terms of computational cost and error tolerance.

关键词： Karhunen-Loève expansion Monte Carlo quasi-Monte Carlo sparse grid

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Controlling Excitation Inversion of a Cooper Pair box Interacting with a Nanomechanical Resonator

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Chinese Physics Letters 2012年第8期29卷 20-24页

作者： C.Valverde H.C.b.de oliveira A.T.Avelar b.baseia Instituto de Química Universidade de Brasília70919-970BrasíliaDFBrazil Universidade Estadual de Goiás Rod.BR 15375132-903 AnápolisGOBrazil Universidade Paulista Rod.BR 153km 774845-090 GoianiaGOBrazil Instituto de Física Universidade Federal de Goiás74001-970 GoianiaGOBrazil

We investigate the action of time-dependent detunings upon the excitation inversion of a Cooper pair box interacting with a nanomechanical *** method employs the Jaynes–Cummings model with damping,assuming different decay rates of the Cooper pair box and various fixed and time-dependent *** is shown that,when the presence of damping plus constant detunings destroys the collapse/revival effects,convenient choices of time-dependent detunings allow one to reconstruct such events in a perfect *** is also shown that the mean excitation of the nanomechanical resonator is more robust against damping of the Cooper pair box for convenient values of time-dependent detunings.

关键词： Cooper tuning excitation

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Resveratrol attenuates metabolic,sperm,and testicular changes in adult Wistar rats fed a diet rich in lipids and simple carbohydrates

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Asian Journal of Andrology 2019年第2期21卷 201-207页

作者： Fabiana A de oliveira Waldemar S Costa Francisco J b Sampaio bianca M Gregorio Urogenital Research Unit Biomedical CenterState University of Rio de JaneiroRio de Janeiro 20551-030Brazil

High-fat diets affect male reproduction and sexual ***,we evaluated the effects of prolonged resveratrol administration on the metabolic,sperm,and testicular parameters of rats fed a cafeteria *** Wistar rats were divided at weaning into control(Cv n=20)and cafeteria(CAF,n=16)*** 3 months,half of them were given daily supplementations of resveratrol(C-R,n=10;CAF-R,n=8)at a dosage of 30 mg kg-1 body mass for 2 *** were killed at 5 months of age,and blood,spermatozoa,and testes were collected for further *** were analyzed by one-way ANOVA,and Pdered statistically *** CAF diet promoted hyperglycemia(Pbility and motility,while resveratrol improved these parameters(Fbody mass,the consumption of a CAF diet promoted hyperglycemia,adverse testicular morphology remodeling,and abnormal sperm,which were attenuated by treatment with resveratrol,thus suggesting a protective effect of this antioxidant on spermatogenesis.

关键词： cafeteria diet morphology resveratrol spermatozoa testicle

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ASYMPTOTIC HOMOGENIZATION IN A PARAbOLIC SEMILINEAR PRObLEM WITH PERIODIC COEFFICIENTS AND INTEGRAbLE INITIAL DATA

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Acta Mathematica Scientia 2013年第5期33卷 1275-1292页

作者： Rogerio Luiz Quintino de oliveira JUNIOR Instituto de Matema'tica e Estat' stica Universidade do Estado do R.de Janeiro Rua S ao Francisco Xavier524 - Pavilha o Reitor Joa o Lyra Filho 6oandar bl.B 20559-900 Rio de Janeiro R.J. Brazil

In this paper, we study the large time behavior of solutions of the parabolic semilinear equation δtu-div（a（x）△↓u） = -｜u｜^αu in （0,∞） × R^N, where α 〉 0 is constant and a∈ Cb^1（R^N） is a symmetric periodic matrix satisfying some ellipticity *** an integrable initial data u0 and α ∈ （2/N, 3/N）, we prove that the large time behavior of solutions is given by the solution U（t, x） of the homogenized linear problem δtU-div（a^h△↓U）=0,U（0） = C, where a^h is the homogenized matrix of a（x）, C is a positive constant and δ is the Dirac measure at 0.

关键词： homogenization similinear parabolic equation integrable initial data matrix with periodic coefficient large time behavior

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Carbon Dots-Doped Electrospun Fibers for Simultaneous Metal Ion detection and Adsorption of Dyes

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Advanced Fiber Materials 2020年第6期2卷 302-313页

作者： Mário César A.de oliveira Elisângela G.de L.oliveira Indira C.b.Pires Iuri C.M.Candido Nikifor Rakov Helinando P.de oliveira Yutao Xing Glauco S.Maciel Institute of Materials Science Universidade Federal do Vale do São FranciscoJuazeiroBA 48920-310Brazil Instituto de Física Universidade Federal FluminenseNiteróiRJ 24210-346Brazil

The required treatment and monitoring of contaminants in wastewater reinforces the development of low-cost adsorbents/chemosensors,introducing advantages relative to the detection/removal of toxic metals and ***,it is reported a two-step process of fabrication of fluorescent carbon dots via the hydrothermal treatment of amino acids for the following encapsulation in electrospun *** prominent anionic behavior of electrospun fibers of Eudragit L100 was explored for adsorption of cationic dyes(methylene blue and crystal violet)-with the prevailing electrostatic interaction of parts being favored by the formation of monolayers on the surface of *** the other hand,the controlled release of carbon dots(CDs)from fibers to the reactor can be explored for a second application:the nitrogen ligands from released glycine-based carbon dots can be explored to indicate the presence of metal ions in aqueous *** experiment resulted in a quenching in the fluorescence of the CDs in order of 90%in the emission of particles in the response of the presence of Fe^(3+) ions,characterizing a promising perspective for this experimental system.

关键词： Fluorescence Ferric ion detection Electrospinning Carbon nanostructure

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Recovery of polyphenols from camu-camu(Myrciaria dubia ***)depulping residue by cloud point extraction

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Chinese Journal of Chemical Engineering 2018年第12期26卷 2471-2476页

作者： Carlos Eduardo de Araujo Padilha Juliana Chris Silva de Azevedo Francisco Caninde de Sousa Junior Sergio Dantas de oliveira Junior Domingos Fabiano de Santana Souza Jackson Araujo de oliveira Gorete Ribeiro de Macedo Everaldo Silvino dos Santos Laboratory of biochemical Engineering Chemical Engineering department Federal University of Rio Grande do Notre(UFRN)NatalRNBrazil Laboratory of Food bioactive Compounds and Dairy Technology Chemical Engineering DepartmentFederal University of Rio Grande do Notre(UFRN)NatalRNBrazil

In this study the potential of cloud point extraction formed by a non-ionic surfactant was used in order to separate polyphenols from industrial residues of camu-camu. The effects of operational conditions of the cloud point extraction(CPE) on the polyphenol recovery and volumetric ratio were investigated. The results showed a maximum recovery of 95.71% that was obtained using 7.0 wt% Triton X-114, native pH(3.25), and 80 wt%polyphenol extract at 30 °C. The use of cloud point extraction was successful to recover the polyphenols from agroindustrial residue since it is a simple as well as of low-cost technique.

关键词： Cloud point extraction Recovery Polyphenols Camu-camu depulping residue

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brazilian payment for environmental services programs emphasize water-related services

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International Soil and Water Conservation Research 2023年第2期11卷 276-289页

作者： Ingrid Mamedes Angélica Guerra Dulce b.b.Rodrigues Letícia Couto Garcia Raquel de Faria Godoi Paulo Tarso S.oliveira Faculty of Engineering Architecture and Urbanism and GeographyFederal University of Mato Grosso do SulMS79070-900Brazil Programa de Pós-Graduaçāo em Ecologia e Conservaaçāo Universidade Federal de Mato Grosso do SulCampo GrandeBrazil Laboratorio de Ecologia da Intervenaçāo-LEl Instituto de BiociênciasUniversidade Federal de Mato Grosso do SulCampo GrandeBrazil department of Hydraulics and Sanitary Engineering Sao Carlos School of EngineeringUniversity of Sao PauloSao CarlosSPBrazil

based on"user pays"and"provider gets"principles,the Payment for Environmental Services(PES)consists of providing economic incentives or compensation for land users who adopt activities that promote ecosystem *** PES initiatives have grown rapidly in brazil over the last few decades,however,studies that address the panorama of these programs in the country are still scarce,regional,or ***,we investigate the PES overview in brazil through interviews and an extensive literature *** found in total 80 PES programs implemented in brazil,of which 14 were *** pro-grams are poorly distributed across the country,mostly concentrated in the Atlantic Forest(56.25%)and Savanna(36.25%)biomes,in Southeastern *** majority of programs primarily prioritize improving water quality and ***,reforestation,protection of native vegetation,and soil and water conservation are their main proposed *** positive impacts of brazil's PES experi-ences are evident;while the lack of transparency and monitoring,and poor spatial and financial dis-tribution are still major *** conclude that if correctly implemented,PES schemes offer a path to reconcile environmental conservation with agricultural production in brazil.

关键词： Conservation funding Ecological restoration Environmental compliance Public policy Soil and water conservation

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Anuran forelimb muscle tendinous structures and their relationship with locomotor modes and habitat use

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Current Zoology 2019年第5期65卷 599-608页

作者： Silvia de oliveira-LAGOA Felix b.CRUZ debora L.Moreno AZOCAR Esteban O.LAVILLA Virginia AbDALA Facultad de Ciencias Exactas y Naturales-Universidad Nacional de Asuncion San LorenzoParaguay Instituto de Investigaciones en biodiversidad y Medioambiente INIbIOMA(CONICET-UNCOMA)Quintral bariloche Rio NegroArgentina Instituto de Herpetologia UEL(Fundacion Miguel Lillo-CONICET)TucumanArgentina dlnstituto de biodiversidad Neotropical(UNT-CONICET)Horco Molle s/n Yerba buena Tucuman.Catedra de Biologia GeneralFacultad de Ciencias NaturalesUNXTucumanArgentina

The interaction between organisms and their environment is central in functional *** in habitat usage may imply divergent morphology of locomotor systems;thus,detecting which morphological traits are conservative across lineages and which ones vary under environmental pressure is important in evolutionary *** studied internal and external morphology in 28 species of Neotropical *** aim was to determine if internal morphology(muscle and tendons)shows lower phylogenetic signal than external *** addition,we wanted to know if morphology varies in relation to the habitat use and if there are different functional *** found differences in the degree of phylogenetic signal on the groups of ***,postaxial regions of the forelimb are evolutionarily more labile than the preaxial *** plots show that arboreal(jumpers and graspers)and swimmer frogs cluster based on length of fingers and the lack of sesamoid,also reflected by the use of *** functional clusters are also related to *** and flexor plate dimensions together with digit tendons showed to be important to discriminate functional groups as well as use of habitat *** results allow us to identify a"grasping syndrome"in the hand of these frogs,where palmar sesamoid and flexor plate are absent and a third metacarpal with a bony knob are ***,a lighter skeleton,long fingers and a prensile hand may be key for arboreality.

关键词： comparative analyses ecomorphology neotropical frogs function habits phylogeny

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Reviewing perovskite oxide sites influence on electrocatalytic reactions for high energy density devices

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Journal of Energy Chemistry 2023年第6期81卷 1-19,I0002页

作者： Lorrane C.C.b.oliveira Raissa Venâncio Paulo V.F.de Azevedo Chayene G.Anchieta Thayane C.M.Nepel Cristiane b.Rodella Hudson Zanin Gustavo Doubek Advanced Energy Storage Division Laboratory of Advanced Batteries(LAB)Center for Innovation on New Energies(CINE)School of Chemical EngineeringUniversity of Campinas(Unicamp)CampinasSao Paulo 13083-852Brazil Advanced Energy Storage Division Center for Innovation on New Energies(CINE)Brazilian Renewable Energies(BREnergies)groupManufacturing GroupSchool of Electrical and Computer EngineeringUniversity of Campinas(UNICAMP)CampinasSão Paulo 13083-852Brazil Paul Scherrer Institut(PSI) Swiss Light Source(SLS)Forschungsstrasse 1115232 Villigen PSIAargauSwitzerland brazilian Center for Research in Energy and Materials(CNPEM)/brazilian Synchrotron Light Laboratory(LNLS) CampinasSão Paulo 13083-100Brazil

batteries,fuel cells,and supercapacitors are electrochemical devices already on the market and still need a boost in kinetics to match the high energy density demand of *** have attracted the scientific community's attention in the last decade due to their electrocatalytic activity,chemical and structural properties,tunability,low cost,and *** have been made to understand the active sites and the operational mechanisms in perovskite oxides to shape them as an electrocatalyst in advanced energy *** the role of perovskites is the key to engineering more controlled and efficient electrocatalysts via chemical synthesis,and there is still much to *** review highlights the use of perovskites in different energy storage and conversion *** A,b,and A&b doping-site effects are analyzed to understand the opportunities and challenges related to this class of *** addition,the synthesis methods and the properties related to the doping site are described and summarized.

关键词： Perovskites Energy storage systems Electrocatalysts battery Oxide fuel cells Capacitors

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