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International Journal of Sediment Research 2018年第2期33卷 117-125页

作者： Richarde Marques da Silva celso augusto guimares santos José Yure Gomes dos santos Department of Geosaences Federal University of Paraíba Department of Civil and Environmental Engineering Federal University of Paraíba Federal University of Western Bahia Center for Humanities

This paper quantifies the runoff and sediment yield for four different land covers in a semiarid region of Brazil. The WesP model, a distributed, event-oriented runoff-erosion model, was applied and its physical parameters, NSand KR, were adjusted based on observed runoff and sediment yield data using simulated rainfall with an average intensity of 53 mm h-1. The sediment yield obtained was 53.02 kg ha-1(caatinga vegetation), 231.96 kg ha-1(bare soil), 309.75 kg ha-1(beans), and 847.38 kg ha-1(corn). The results showed that caatinga cover yields the lowest erosion and runoff when compared to the other *** results also show that the sediment yield and runoff values simulated with NS, KI, and KR parameters were well calibrated, within acceptable deviations. The caatinga vegetation was more effective in protecting the soil, when compared to the other types of coverage. The beans and corn covers had the highest values of runoff and sediment yield, even higher than those observed for bare soil.

关键词： Runoff Erosion Semiarid region WesP model

Urban forest loss using a GIS-based approach and instruments for integrated urban planning:A case study of Jo?o Pessoa,Brazil

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Journal of Geographical Sciences 2021年第10期31卷 1529-1552页

作者： Leandro Ismael de Azevedo LACERDA Joséaugusto Ribeiro da SILVEIRA celso augusto guimarães santos Richarde Marques da SILVA Alexandro Medeiros SILVA Thiago Victor Medeiros do NASCIMENTO Edson Leite RIBEIRO Paulo Vitor Nascimento de FREITAS Federal University of Paraíba Laboratory of Urban and Built Environment-LAURBE58051-900 João PessoaParaíbaBrazil Federal University of Paraíba Department of Architecture and Urbanism58051-900 João PessoaPBBrazil Federal University of Paraíba Department of Civil and Environmental Engineering58051-900 João PessoaPBBrazil Federal University of Paraíba Department of Geosciences58051-900 João PessoaPBBrazil Ministry of Cities Setor de Autarquias SulQuadra 01Lote 01/06Bloco HEd.Telemundi II70070-010 BrasíliaDFBrazil

Urban forests play an important role in the thermal comfort and overall life of local populations in large-and medium-sized *** study analyzes urban forest loss and maps land use and land cover(LULC)changes between 1991 and 2018 by evaluating the use of urban planning instruments for the mitigation of urban forest loss in Jo?o Pessoa,*** this purpose,satellite-derived LULC images from 1991,2006,2010 and 2018 and data on urban forest loss areas obtained using the Google Earth Engine were *** addition,this paper also discusses the instruments used for integrated urban planning,which are(a)the legal sector,responsibility and nature;(b)the urban expansion process;and(c)the elements of urban *** results show a clear shift in land use in the study *** major changes in LULC classes occurred in urban areas and herbaceous vegetation,while the greatest loss was in arboreal/shrub ***,an increase in the pressure to occupy zones intended for environmental preservation could be *** results showed similar accuracies with other studies and more spatial *** characteristics of the patterns,traces,and hotspots of urban expansion and forest cover loss were *** highlighted the potential use of this proposed framework to be applied and validated in other parts of the world to help better understand and quantify various aspects of urban-related problems such as urban forest loss mapping using instruments for integrated urban planning and low-cost approaches.

关键词： integrated planning mapping thematic synthesis urban afforestation urban planning

Biomass-glycerol briquettes are not necessarily mechanically stable and energetically effective

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Waste Disposal and Sustainable Energy 2020年第4期2卷 291-303页

作者： Bruno Rafael de Almeida Moreira Ronaldo da Silva Viana Samuel Dias Moreira Monique dos santos Lima Anderson Chagas Magalhães celso Tadao Miasaki JoséClaudio Caraschi Department of Phytosanitary Rural Engineering and SoilsSchool of EngineeringSão Paulo State University(Unesp)Ilha SolteiraSão PauloBrazil Department of Plant Production College of Agricultural and Technological SciencesSão Paulo State University(Unesp)DracenaBrazil São Paulo State University(Unesp) ItapevaSão PauloBrazil

The re-use of glycerol from biodiesel industry as an alternative lubricant for making high-performance briquettes is ***,the technical performance of this agro-industrial residue is not *** study outlines,accordingly,the real risk of introducing glycerol into the co-briquetting of highly caloric by-products of *** production of hybrid briquettes consisted of pressing mixtures of residues of sugarcane and sorghum with the liquid additive at 10,20,and 30 wt.%in bench-scale hydraulic piston presser *** of the blend,briquettes containing the supplement at the highest level as part of their composition ended up being much more hygroscopic(20.10%)and less energetic(3.15 GJ m^(−3)).The explanation for the negative impact of glycerol on the thermomechanical behavior of briquettes would be overconcen-tration of additive capable of effectively defying compacting *** degree of compaction during co-briquetting has likely gone down quickly with a maximizing level of *** long as the additive is not able to lubricate the feedstock suitably,improbability of biomass particles to successfully bond together to form themselves into mechanically stable and energetically effective briquettes is *** lower density(273.80 kg m^(−3))and higher relaxation(22.75%),briquettes with glycerol at 30 wt.%generally were aesthetically ***,these products resisted no longer to handling,transportation,and *** lost their shape easily during emptying and shifting them,thus,releasing larger quanti-ties of biomass to the *** evidence of high-viscosity glycerol capable of limiting safe and effective production of high-performance briquettes for heating and power exists.

关键词： Additive Agro-residues Densification Biosolids Waste-to-energy

A Numerical Study on Piezoelectric Energy Harvesting by Combining Transverse Galloping and Parametric Instability Phenomena

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Journal of Marine Science and Application 2017年第4期16卷 465-472页

作者： Guilherme Rosa Franzini Rebeca Caramêz Saraiva santos celso Pupo Pesce escola PolitEnica University of SAO Paulo SAO Paulo SP 05508-030 Brazil

This paper aims to numerically investigate the effects of parametric instability on piezoelectric energy harvesting from the transverse galloping of a square prism. A two degrees-of-freedom reduced-order model for this problem is proposed and numerically integrated. A usual quasi-steady galloping model is applied, where the transverse force coefficient is adopted as a cubic polynomial function with respect to the angle of attack. Time-histories of nondimensional prism displacement, electric voltage and power dissipated at both the dashpot and the electrical resistance are obtained as functions of the reduced velocity. Both, oscillation amplitude and electric voltage, increased with the reduced velocity for all parametric excitation conditions tested. For low values of reduced velocity, 2:1 parametric excitation enhances the electric voltage. On the other hand, for higher reduced velocities, a 1:1 parametric excitation(i.e., the same as the natural frequency) enhances both oscillation amplitude and electric voltage. It has been also found that, depending on the parametric excitation frequency, the harvested electrical power can be amplified in 70% when compared to the case under no parametric excitation.

关键词： transverse galloping energy harvesting piezoelectricity parametric instability numerical simulations

Soil properties characterization for land-use planning and soil management in watersheds under family farming

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International Soil and Water Conservation Research 2022年第1期10卷 119-128页

作者： Jose Miguel Reichert Paulo Ivonir Gubiani Danilo Rheinheimer dos santos Dalvan Jose Reinert celso Aita Sandro Jose Giacomini Soils Department Universidade Federal de Santa Maria(UFSM)Santa MariaRSBrazil

Environmental monitoring of small,rural watersheds was one of the components of the Natural Re-sources Management and Rural Poverty Alleviation Program(RS-Rural)in southern *** purpose of the monitoring was to assess the impact of promoting soil conservation and environment manage-ment practices adopted by farmers and funded by the *** four small monitored watersheds,in a total of 95 plots representing distinct land use and soil management,surface soil was collected to characterize ground-zero of the Program by determining several soil physical,chemical and microbio-logical *** component analysis(PCA)shows soil physical,chemical and biological properties were decisive in defining the agricultural soils in the rural watersheds with family *** sensitivity to chemical properties provides an opportunity to improve soil quality if soil management focuses on altering those *** management practiced by tobacco farmers leads to rapid,intense degradation of some natural soil properties,especially those related to the dynamics of soil organic matter,compared with more conservationist uses(forest,regrowth,and grassland).Thus,soil management must be reoriented to avoid the progress of degradation and recover soil physical and biological *** crops and by land-abandonment to allow natural vegetation are important management strategies for the degraded soils used for tobacco production,increasing soil organic matter,nutrients and microbial activity and thus allowing further crop *** conclusion,wa-tersheds with tobacco cropping have soils with lower quality than when under no-tillage grain pro-duction,requiring changes in land use and soil management.

关键词： Natural resources management Environmental monitoring Soil conservation Soil quality Alleviating poverty

Non-wetting Additive as a Solution to Minimize the Corrosion of Refractory Castables Against Molten Aluminum

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China's Refractories 2016年第1期25卷 20-25页

作者： Fernando VERNILLI Adriel Claro de FARIA Mateus Gomes VERNILLI augusto celso AMOEDO Eduardo Jose Togni CARDILLO Taner augusto MAIA Matheus MARTINI Engineering School of Lorena University of Sao Paulo Lorena 12600-970 Brazil Togni S/A Materiais Refratarios Pocos de Caldas 37704-356 Brazil

The ternary compound barium aluminosilicate BaAl2Si2O8, known as celsian, a non-wetting additive that increases the corrosion resistance of refractor） materials against molten aluminum, was incorporated into the matrix of a high-alumina low cement castable after its synthesis using barite and a low cost source of alumina and silica. This paper presents the influence of this phase on the wetting angle formed between liquid aluminum alloy and solid refractory castable surface.

关键词： refractories con'osion non-wetting additive aluminmn alloy

Level spacing statistics for two-dimensional massless Dirac billiards

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Chinese Physics B 2014年第7期23卷 41-52页

作者：黄亮徐洪亚来颖诚 celso Grebogid Institute of Computational Physics and Complex Systems and Key Laboratory for Magnetism and Magnetic Materials of MOE Lanzhou University School of Electrical Computerand Energy EngineeringArizona State University Department of Physics Arizona State University Institute for Complex Systems and Mathematical Biology School of Natural and Computing SciencesKing's CollegeUniversity of Aberdeen

Classical-quantum correspondence has been an intriguing issue ever since quantum theory was proposed. The search- ing for signatures of classically nonintegrable dynamics in quantum systems comprises the interesting field of quantum chaos. In this short review, we shall go over recent efforts of extending the understanding of quantum chaos to relativistic cases. We shall focus on the level spacing statistics for two-dimensional massless Dirac billiards, i.e., particles confined in a closed region. We shall discuss the works for both the particle described by the massless Dirac equation （or Weyl equation） and the quasiparticle from graphene. Although the equations are the same, the boundary conditions are typically different, rendering distinct level spacing statistics.

关键词： quantum chaos level spacing statistics Dirac billiards graphene billiards

Transmission of amyloid-βpathology in humans:a perspective on clinical evidence

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Neural Regeneration Research 2024年第2期19卷 390-392页

作者： celso S.G.Catumbela Rodrigo Morales Department of Neurology McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTXUSA Centro Integrativo de Biologia y Quimica Aplicada(CIBQA) Universidad Bernardo O’HigginsSantiagoChile

Transmission of misfolded amyloid-β(Aβ)aggregates between human subjects:Protein misfolding disorders are a family of diseases characterized by the accumulation of misfolded protein *** proteinaceous structures,also known as amyloids,are key drivers of fatal neurodegenerative disorders such as prion diseases,Alzheimer’s disease(AD),Parkinson’s disease,and others.

关键词： amyloid diseases Aβ

Late Cryogenian-Ediacaran magmatism in southern Borborema Province,NE Brazil:Ages,sources,petrogenesis,and tectonic setting

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Geoscience Frontiers 2023年第6期14卷 70-101页

作者： Fábio santos Pereira Herbet Conceição Maria de Lourdes Silva Rosa Moacyr Moura Marinho Colombo celso Gaeta Tassinari João Marinho Milhomem Neto Jean-Michel Lafon Programa de Pós-Graduação em Geologia e Geoquímica(PPGG) Instituto de GeociênciasUniversidade Federal do Pará(UFPA)66075-110 BelémParáBrazil Programa de Pós-Graduação em Geociências e Análise de Bacias(PGAB) Universidade Federal de Sergipe(UFS)49100-000 São CristóvãoSergipeBrazil Instituto de Geociências Universidade Federal da Bahia(UFBA)40170-290 SalvadorBahiaBrazil Instituto de Geociências Universidade de São Paulo(USP)05508-900 São PauloBrazil Laboratório de Geologia Isotópica(Pará-Iso) IG-UFPA66075-110 BelémParáBrazil

The Sergipano Orogenic System(SOS)in southern Borborema Province(NE Brazil)hosts voluminous Neoproterozoic plutonism related to the Brasiliano/Pan-African *** paper presents comprehensive whole-rock geochemical data,titanite U-Pb ages,and the first combined zircon U-Pb and Lu-Hf isotope results for plutonic rocks from the MacururéDomain to constrain their sources,petrogenesis,and tectonic *** magmatic episodes are recognized and record the evolutionary stages of the orogen.(i)Early-collisional magmatism(643–628 Ma)comprises gabbros and diorites with minor tonalites characterized by well-developed tectonic foliation and evidence of solid-state *** rocks are magnesian,high-K calc-alkaline,LILE-and LREE-enriched and provide subchondriticε_(Hf)(t)values(6.5 to4.7)and Orosirian Hf-T^(C)_(DM)model ages(1.83–1.94 Ga).Such features indicate derivation from a lithospheric mantle source metasomatized by incorporating crustal components through subduction processes prior to magma generation,possibly related to the Rhyacian Orogeny(2.20–1.96 Ga).Extensive mixing/mingling between basaltic and crust-derived magmas took place at lower crustal depths,producing coeval hybrid diorites and quartz-diorites.(ii)Syn-collisional magmatism(630–624 Ma)encompasses biotite-and muscovite-bearing granodiorites and monzogranites,preserving their structures parallel to the schistosity of the country *** rocks are leucocratic,weakly metaluminous to peraluminous,and contain abundant surmicaceous *** features and geochemical composition suggest an origin related to the partial melting of graywacke protoliths with a subordinate igneous component.(iii)Late-collisional magmatism(625–600 Ma)includes undeformed and isotropic monzonites and granodiorites,which truncate the regional *** rocks are consistently metaluminous and magnesian,showing affinities with the high-K calc-alkaline to shoshonite *** element modeling with su

关键词： Brasiliano/Pan-African Orogeny Western Gondwana Zircon and titanite U-Pb dating Hf isotope data Magma source

Randomized controlled trial comparing open anterograde anatomic radical retropubic prostatectomy with retrograde technique

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Asian Journal of Urology 2023年第2期10卷 151-157页

作者： Fabricio B.Carrerette Daniela B.Rodeiro Rui T.F.Filho Paulo A.santos celso C.Lara Ronaldo Damiao Department of Surgery(Urology) Pedro Ernesto University Hospital of State University of Rio de JaneiroRio de JaneiroBrazil

Objective:Radical prostatectomy is the recommended treatment for localized prostate cancer;however,it is an invasive procedure that can leave serious ***-assisted radical prostatectomy was introduced with the aim of reducing postoperative morbidity and facilitating rapid recovery compared to the traditional Walsh’s open radical retropubic ***,a protocol was developed to perform an open prostatectomy comparable to that performed by robotics,but without involving novel ***:A total of 220 patients diagnosed with localized prostate cancer underwent radical *** were divided into two groups:anterograde technique(115 patients)and the retrograde method(105 patients).The study outcomes were observed 3 months after ***:No differences were found in terms of surgical time,hospital stay,and suction ***,reduced bleeding was observed in the anterograde technique(p=0.0003),with rapid anastomosis duration(p=0.005).Among the patients,60.9% undergoing the anterograde technique were continent 3 months after surgery compared to 42.9%treated by the retrograde method(p=0.007).Additionally,fewer complications in terms of the number(p=0.007)and severity(p=0.0006)were observed in the anterograde ***:The anterograde method displayed increased efficiency in reducing complications,compared to the retrograde technique.

关键词： Prostatectomy Localized prostate cancer Vesicourethral anastomosis Continence