Utilização do coque verde de petróleo da Petrobras em substituição parcial ao carvão mineral das misturas injetadas em altos fornos

The Petrobras produced green petroleum coke (GPC) is a carbon rich fuel, virtually ash-free, with low sulfur content, and is a fuel suitable to replace metallurgical coke in blast furnaces. The GPC was tested in a pulverized coal injection simulator built in the Volta Redonda research center. It presented a low burning efficiency due to low volatile material content and high substitution rate by the carbon content. The tests were carried out in blast furnaces with ≤ 50% Petrobras GPC in the coal blends. The injected coal/CVP mixtures produced no negative side effects in the blast furnace grinding systems, pneumatic conveying, or operating process. The mixture burning process inside the blast furnace showed a decrease in fuel consumption, with a significant reduction in metallurgical coke consumption. The industrial-scale tests of the GPC mixtures did not reach the 70% maximum for lack of the GPC feedstock, which is necessary to continue with standard coal mixtures.

Preparados homeopáticos e adubação verde no controle de Cyperus rotundus L.

In the search for natural herbicides for the management of the Cyperus rotundus L. in crops this work evaluated alternative methods to control weed, aiming at sustainability. The experiment was carried out in pots, in a greenhouse at the Experimental Station Lageado, FCA-UNESP-Botucatu, from april to may 2008. The experimental design was entirely randomized, with three repetitions, and treatments consisted of aqueous extract of Stilozobium aterrimum Piper & Tracy, residue of the green manure on the soil surface and incorporated into soil, homeopathic preparations and control treatment with no applications. The aqueous extract of green manure and homeophathic preparation provided both reduction in the development of C. rotundus. The fresh weight of the aerial part of S. aterrimun stimulated the growth of the weed both as cover and incorporated into the soil.

Herbivoria em soja: Efeito na composição química das folhas e na biologia da lagarta da soja e do percevejo verde pequeno

The objective of this research was to study the effect of previous herbivory in the chemical composition of soybean leaves, and its influence on Anticarsia gemmatalis (Hüeb.) and Piezodorus guildinii (West.) development. Two soybean genotypes, 'Embrapa 4' and 'BR 37', were chemically analyzed. The caterpillars were fed on these genotypes leaves and the bugs on string beans, both injured and non- injured (control), totalizing 4 treatments with 50 replications for each treatment. Herbivory was performed by releasing 3rd instar velvetbean caterpillar. The caterpillars were taken out when 30%-40% of foliar area were consumed. After that, leaves and string beans were used in the experiment. The results obtained during this research indicate that leaves chemical composition was altered and that, in general, A. gemmatalis larvae and P. guildinii nymph have presented better development when fed on non-injured soybean plants, being 'Embrapa 4' genotype the most efficient one concerning insects development.

Avaliação do potencial antimutagênico de extrato etanólico de própolis verde e de Baccharis dracunculifolia (Asteraceae), por meio de sistema-teste de Allium e células de mamíferos (HTC)

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Acúmulo de forragem verde, extração de nutrientes e valor nutricional do capim-xaraés adubado com nitrogênio

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Carta capital e Veja: a cobertura do discurso ecológico-político do Partido Verde na eleição presidencial de 2010

Pós-graduação em Comunicação - FAAC

Análise das mensagens postadas por Marina Silva e pelo Partido Verde no twitter nas eleições de 2010

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influência in vitro da clorexidina e do chá verde na longevidade de união adesiva resina composta – dentina

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A formação da paisagem urbana do complexo Ribeirão Verde: uma proposta comunitária de educação ambiental

Pós-graduação em Educação - IBRC

Estudo da secagem de polpa de coco verde em leito de jorro e viabilidade de sua utilização na indústria

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

A educação ambiental em Brotas (SP): análise de concepções e ações no contexto do programa município Verde Azul

Pós-graduação em Educação para a Ciência - FC

A modernidade poética em Cesário Verde e Gomes Leal

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)