Phosphorus Compounds
Mostrando 13-24 de 115 artigos, teses e dissertações.
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13. Sistemas alagados construídos para tratamento de águas residuárias do processamento dos frutos do cafeeiro: eficiência e caracterização das comunidades microbianas / Constructed wetlands systems for wastewater treatment in the processing of coffee fruits: eficiency and characterization of microbial communities
This study aimed to evaluate the influence of ryegrass cultivation (Lolium multiflorum Lam) and the artificial aeration of the affluent in the removal of organic matter, nutrients and phenolic compounds present in the ARC, as well as the diversity of microbial communities attached to the medium (gravel) and the rhizosphere of ryegrass, using T-RFLP multiplex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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14. Efeito dos processos de irradiação e germinação nos aspectos nutricionais, sensoriais e microbiológicos em grãos de soja (Glycine m ax Merril) cultivar BRS216 / Effect of irradiation and germination processes in the nutritional, sensory and microbiological in soybeans (Glycine max Merrill) cultivra BRS216
Soybean (Gycine max (L.) Merrill) is an important legume for human diets due its potential health benefits. Because of the increasing stimulus to soybean consumption, mainly due to its several bioactive compounds, some processing methods have been studied as a way to know changes that occur in these compounds during the processes. Thus, this study aimed to a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/10/2011
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15. A procura de bactérias degradadoras de metamidofós. / Searching for methamidofos degrading bacteria.
Methamidophos is a strong acetylcholinesterase inhibitor and, therefore, a very toxic organophosphorus insecticide. This product has been widely employed for pest control in a variety of cultures, but little information is available about its biodegradation. 12 bacteria were isolated and characterized, from water and soil samples obtained from a site contami
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/09/2011
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16. PHOSPHORUS INCORPORATION INTO MULTIWALLED CARBON NANOTUBES / INCORPORAÇÃO DE FÓSFORO EM NANOTUBOS DE CARBONO DE PAREDES MÚLTIPLAS
The thesis addresses the incorporation of phosphorus atoms into the structure of multi-walled carbon nanotubes (MWCNTs) grown by the Spray Pyrolysis method. To this end, the concentration of ferrocene in the precursor was fixed in 2,0 wt %, while the concentration of triphenylphosphine (Ph3P) was varied from 0,15 to 0,65 wt %. Scanning and transmission elect
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2011
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17. Reações de obtenção de NOx empregado no processo Humifert para a produção de compostos organofosfatados. / NOx reactions applied in a organophosphated compounds production by Humifert process.
Humiphert process is an alternative used for producing phosphated compound fertilizers with a slower solubilization when compared to other traditional fertilizers, resulting in a longer period of plant nutrition. During the process, phosphatic rocks are used along with some sort of limitation according to the normal development, both by their lower content p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2011
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18. CARACTERIZAÇÃO QUÍMICA E DIGESTIBILIDADE IN VITRO DE LEGUMINOSAS FORRAGEIRAS TROPICAIS COM FOCO NO EFEITO DE COMPOSTOS FENÓLICOS E IDADE DA PLANTA. / CHEMICAL AND IN VITRO DIGESTIBILITY OF TROPICAL FORAGE LEGUMES FOCUSING ON THE EFFECT OF PHENOLIC COMPOUNDS AND PLANT AGE.
It were evaluated the gas production from tropical legumes with forage potential, including sun hemp (Crotalaria juncea), indian rattlebox (Crotalaria spectabilis), pigeon pea (Cajanus cajan), perennial horse gram (Macrotyloma axillare), cowage (Mucuna aterrina) wild groundnut (Calopogonium mucunoides) stylosanthes Campo Grande (Stylosantis sp .) and jack-be
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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19. Germinação e produção de compostos fenólicos em plantas de Talinum triangulare (Jacq.) Willd (Portulacaceae) tratadas com homeopatia / Germination and production of phenolic compounds in plants of Talinum triangulare (Jacq.) Willd (Portulacaceae), treated with homeopathy
Talinum triangulare (Jacq.) Willd (Portulacaceae), a Brazilian specie of annual cycle, is used as food and in traditional medicine as a laxative, healing and in the treatment of measles and diabetes. Found in tropical environments, it is well adapted to hot and humid climate, and low soil fertility. The specie spreaded by seed and grows spontaneously, especi
Publicado em: 2010
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20. Qualidade da água na microbacia do Córrego Fundo, municípios de Catalão e Ouvidor (G0): uma análise geoquímica / Water quality in the watershed of the Stream Fund, municipalities Catalan and Ombudsman (G0): a geochemical analysis
The human action can change aspects of water quality restricting the possible uses of water resources. It integrates the impacts of human activities, but in that regards it as a social concept. The research shows the results of water quality with a view to understanding the geochemical features and anthropic that alters the dynamics of the environment. Thus,
Publicado em: 2010
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21. Avaliação do tratamento de lixiviado de aterro sanitário através de processo oxidativo avançado conjugado com sistema de separação por membranas
The landfill leachate is characterized by high recalcitrant organic matter concentration, ammonia and toxic compounds. This effluent can be an environmental problem due to its high pollutant potential when it is released without treatment. Studies reported in the literature showed that biological processes are not sufficient in meeting the discharge standard
Publicado em: 2010
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22. Reações de organocatálise com aminas quirais: aspectos mecanísticos e aplicações em síntese orgânica
The philosophy of organocatalysis is based on the utilization of organic compounds to catalyze organic transformations without the intervention of metals. This area has attracted much attention of the synthetic chemistry community on the last years, which can be confirmed by the explosion of published papers dealing with this subject. Phosphorus compounds, u
Química Nova. Publicado em: 2009
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23. Síntese, caracterização e estudos biológicos de novas dialquilfosforilidrazonas derivadas de cetonas. / New Dialkylphosphorylydrazones: Synthesis, Characterization and Evaluation of Biological Activity. Seropédica, UFRRJ, 2007.
A series of twelve novel organophosphorus compounds, derived from dialkylphosphorylydrazone ketones were synthesized in three steps of reaction: the first step is the synthesis of various dialkyl phosphonates which are obtained by reaction of phosphorus trichloride (PCl3) with three Mols the corresponding alcohois. In the second step, the reaction of the dia
Publicado em: 2009
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24. RemoÃÃo biolÃgica de nitrogÃnio de efluente avÃcola usando reator em batelada sequÃncial
Slaughterhouses and bird cold storage processing plants stand out as large polluters, particularly because of the large amounts of waste rich in organic substances, solids, oils and greases, nutrients, specially nitrogen and phosphorus. Nitrogen compounds removal from wastewater is usually accomplished through biological processes, by nitrification under aer
Publicado em: 2009