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Surface runoff and soil erosion in a natural regeneration area of the Brazilian Cerrado

International Soil and Water Conservation Research 2020年第2期8卷 124-130页

作者： Karina dos Santos Falcao elói Panachuki Felipe das Neves monteiro Roniedison da Silva Menezes Dulce B.B.Rodrigues Jullian Souza Sone Paulo Tarso S.Oliveira Department of Agronomy State University of Mato Grosso do SulAgronomy DepartmentAquidauanaMS79200-000Brazil Federal University of Mato Grosso do Sul CxP 549Campo GrandeMS79070-900Brazil Department of Hydraulics and Sanitation Sao Carlos School of EngineeringUniversity of Sao PauloCxP.359Sao CarlosSP13566-590Brazil

The Brazilian Cerrado has been converted to farmland,and there is little evidence that this expansion will decrease,mainly because agriculture is the country's main economic ***,the impacts of intense modification of land use and land cover on surface runoff and soil erosion are still poorly un-derstood in this ***,we assessed surface runoff and soil loss in a woodland Cerrado area under a former pasture area,which was abandoned and has undergone a natural regeneration process for 7 years(RC).Its results were compared with that found in an undisturbed area of woodland Cerrado(CE),40-month-old eucalyptus(3.0×1.8 m)(EU),and pasture under rotational grazing(PA).The study was conducted on Red Acrisol located in the Brazilian *** performed rainfall simulations on a plot of 0.7 m2 and using three constant rainfall intensities of 60,90,and 120 mm h-1 for 1 *** each rainfall intensity,we carried out four repetitions using different plots in each treatment,i.e.12 plots per treat-ment studied and 48 plots in *** noted that the soil physical properties were improved in RC and,consequently,water infiltration and soil erosion control;RC presented surface runoff and soil loss different from EU and PA(a=0.05).The macroporosity and soil bulk density affected surface runoff in RC and PA because the RC was used as pasture and is currently regenerating back to the cerrado *** the rainfall intensity increased,EU became more similar to PA,which showed the highest surface runoff and soil *** findings indicate that natural regeneration processes(pasture to the cerrado vegetation)tend to improve the soil ecosystem services,improving infiltration and reducing surface runoff and soil erosion.

关键词： Cerrado deforestation Forest regeneration Soil erosion

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Impact of the Objective Function on the Construction of Internal Grids of Wind Farms Using Genetic Algorithm

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Open Journal of Civil Engineering 2016年第5期6卷 705-721页

作者： Paulo R. monteiro Duailibe Thiago T. Borges André F. Schiochet Carlos Alberto P. Soares Programa de Pós-Graduaç ã o em Engenharia Civil Universidade Federal Fluminenese Niterói Brasil Departamento de Engenharia elétrica Universidade Federal Fluminense Niterói Brasil Petróleo Brasileiro S/A Rio de Janeiro Brasil

The macro complex of the construction industry is energy intensive. Solutions that enable the supply of this demand while meeting the principles of sustainability are needed. The construction of wind farms has been a strategy employed by many countries to produce clean energy. An increase in the construction of wind farms has also been witnessed in Brazil. This calls for different activities, such as the design and construction of infrastructure. This article focuses on the design of internal medium voltage distribution grids for wind farms. The purpose is to find a radial configuration that connects a set of wind generators to the substation, in an optimum way, minimizing operational and construction costs, reducing loss and therefore contributing to sustainability. In large farms, the project design consists of a large combinatorial optimization problem, given the large number of possible configurations to be deployed. Finding the best solution for the internal grid depends on the criterion adopted for the objectives pursued. This article analyzes the different criteria that can be adopted in the design of the wind farm’s internal grid using a methodology based on genetic algorithm (GA). Its aim is to identify their influence on the solution of the problem and help decision-making by finding the most adequate criterion for the objectives pursued. The results show that the design of the internal grid is sensitive to the criteria adopted for the objective function. In addition, the degree of sensitivity is analyzed, showing that, in some cases, the solutions are not economically attractive and do not contribute to the reduction of losses.

关键词： Construction Infrastructure Wind Farm Infrastructure Collection Grid Network Configuration Genetic Algorithm

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2015年巴西寨卡病毒感染与小头畸形之间可能存在的关联

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上海预防医学 2017年第1期29卷 82-84页

作者： Lavinia Schuler-Faccini Erlane M.Ribeiro Ian M.L.Feitosa Dafne D.G.Horovitz Denise P.Cavalcanti AndréPessoa Maria Juliana R.Doriqui Joao Ivanildo Neri Joao monteiro de Pina Neto Hector Y.C.Wanderley Mirlene Cernach Antonette S.el-Husny Marcos V.S.Pone Cassio L.C.Serao Maria Teresa V.Sanseverino 朱秋丽(译) 陆仁敏(校) Universidade Federal do Rio Grande do Sul Brazil Hospital Infantil Albert Sabin FortalezaCEBrazil Universidade Federal de Pernambuco Brazil Fundaqao Oswaldo Cruz Rio de JaneiroBrazil University of Campinas Sao PauloBrazil Hospital Infantil Juvencio Mattos MaranhaoBrazil Universidade Potiguar Rio Grande do NorteBrazil University of Sao Paulo Ribeirao PretoBrazil Secretaria de Estado da Saude do Espirito Santo Brazil Universidade Federal de Sao Paulo Brazil Centro Universitario do Estado do Para Brazil Universidade do Estado do Rio de Janeiro Brazil Hospital de Clinicas de Porto Alegre Brazil Brazilian Medical Genetics Society-Zika Embryopathy Task Force 不详

2015年初,通过伊蚊传播的寨卡病毒在登革热病毒流行地区巴西的东北部暴发,该病毒属于黄病毒属。2015年9月,寨卡病毒流行地区开始出现关于小头畸形患儿的报道,且报道数量呈现增加的趋势。与此同时,有2名妇女产前超声检查发现有胎儿畸形,... 详细信息

2015年初,通过伊蚊传播的寨卡病毒在登革热病毒流行地区巴西的东北部暴发,该病毒属于黄病毒属。2015年9月,寨卡病毒流行地区开始出现关于小头畸形患儿的报道,且报道数量呈现增加的趋势。与此同时,有2名妇女产前超声检查发现有胎儿畸形,在她们的羊水中也检测出寨卡病毒RNA。

关键词：小头畸形病毒感染报道数量登革热病毒产前超声检查胎儿畸形西寨黄病毒属病毒流行先天性异常

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