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Registros recuperados: 10
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Aproveitamento do babacu (Orbignya phalerata Martius) para uso caseiro. Repositório Alice
COSTA, J. R. da; PEREIRA, M. M.; LEEUWENG, J. van..
Descricao das varias formas de exploracao e utilizacao do babacu (oleo, leite, combustivel - oleo e carvao), bem como o tempo de trabalho utilizado pelos agricultores na obtencao do e oleo e das etapas para obtencao do leite e carvao, em Maraba-PA (Brasil).
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Orbignya phalerata; Babacu; Fruto; Leite; Oleo; Combustivel; Carvao; Processamento; Tecnologia de alimento; Analise economica; Brasil; Para; Maraba; Fruits; Milk; Oil plants; Fuel; Coal byproducts.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/670635
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Considering Macroeconomic Indicators in the Food versus Fuel Issues AgEcon
Qiu, Cheng; Colson, Gregory; Wetzstein, Michael E..
In this study, a Structural Vector Autoregression model (SVAR) is employed to decompose how supply/demand structural shocks affect food and fuel prices within fuel and corn markets. Results indicate that the relative importance of each structural shock in explaining the variation of corn prices is different. Our findings support the hypothesis that corn prices increase as a response to those positive demand shocks in the short run, while in the long run, global competitive agricultural commodities markets as well as positive supply shocks respond to commodity price shocks, restoring prices to its long-run trends. In conclusion, fundamental market forces of demand and supply as well as real economic aggregated demand shocks were the main contributors of the...
Tipo: Conference Paper or Presentation Palavras-chave: Food; Fuel; Food Consumption/Nutrition/Food Safety; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/103689
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Does fire determine distinct floristic composition of two Cerrado savanna communities on different substrates? Acta Botanica
Lenza,Eddie; Abadia,Ana Clara; Menegat,Hélio; Lúcio,Nadjarriny W.; Maracahipes-Santos,Leonardo; Mews,Henrique A.; Santos,Josias O. dos; Martins,Jhany.
ABSTRACT We surveyed two savanna sites, one on flat terrain with deep soil (DS), and the other on hilly terrain with rocky outcrops and shallow soil (RS), before and after an accidental fire. We found that the fire did not cause any significant changes in the species composition or diversity of either community, and did not result in floristic homogenization. However, we did record a reduction in the density of plants and in basal area in the DS savanna in comparison with the RS savanna, as well as a higher rate of basal sprouting, which indicates a trade-off between mortality and sprouting. We conclude that, whereas post-fire changes in vegetation structure were more pronounced in the DS savanna than in the RS, the difference in the underlying substrate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Fire; Fuel; Savanna; Species composition.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200250
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Economic Feasibility of Commercial Algae Oil Production in the United States AgEcon
Fischer, Bart L.; Richardson, James W.; Outlaw, Joe L.; Allison, Marc S..
A Monte Carlo simulation model was constructed to analyze the economic feasibility of growing algae as a renewable fuel source. Increasing growth rates, pond water depth, oil content, and facility size are important for ensuring the economic viability of a commercial algae facility.
Tipo: Conference Paper or Presentation Palavras-chave: Algae; Renewable; Fuel; Feedstock; Microalgae; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Production Economics; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2011 URL: http://purl.umn.edu/98834
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Factors Affecting Direct and Indirect Energy Use in U.S. Corn Production AgEcon
Musser, Wesley N.; Lambert, Dayton M.; Daberkow, Stan G..
The recent volatility of energy prices has numerous policy implications for agriculture. A better understanding of the factors associated with energy consumption as related to crop production management decisions and technology use may provide insight about how producers might respond to program or market incentives targeting energy use in particular, and soil and water conservation in general. Adoption of minimum tillage could reduce erosion and improved fertilizer management practices could reduce nitrogen runoff. Energy costs may be reduced with adoption of reduced tillage technology, improved drying and irrigation systems, or more careful attention to the application and timing of fertilizers.
Tipo: Conference Paper or Presentation Palavras-chave: Energy; Fuel; Nitrogen; Farm management; Technology; Crop Production/Industries; Q12; Q40.
Ano: 2006 URL: http://purl.umn.edu/21063
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Impacto do uso de energia elétrica, gerada com óleo de dendê, em comunidades do Amazonas. Infoteca-e
MIRANDA, R. de M.; MOURA, R. D..
Avaliacao do impacto da utilizacao do oleo de dende como fonte de energia eletrica em comunidades do Estado do Amazonas.
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Elaeis guianensis; Dende; Oleo; Combustivel; Energia eletrica; Brasil; Amazonas; Presidente Figueiredo; Oil; Fuel; Electrical energy.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/666488
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Optimisation of trawl energy efficiency under fishing effort constraint ArchiMer
Priour, Daniel; Khaled, Ramez.
Trawls energy efficiency is greatly affected by the drag, as well as by the swept area. The drag results in an increase of the energy consumption and the sweeping influences the catch. Methods of optimisation of the trawl design have been developed in order to reduce the volume of carburant per kg of caught fish and consequently the drag per swept area of the trawl. Based on a finite element method model for flexible netting structures, the tool modifies step by step a reference design. For each step the best-modified design, in terms of drag per swept area is kept. Such optimisation can lead to a decrease of the drag or an increase of the swept area. In the second case, that could lead to an increase of fishing effort. To avoid such increase, which could...
Tipo: Text Palavras-chave: Fishing; Fuel; Fishing gear; Trawl; Optimisation; Fishing effort.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00170/28151/26381.pdf
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Sustainable directions for fuel ethanol in Brazil based on Life Cycle Assessment. Repositório Alice
OMETTO, A. R.; HAUSCHILD, M.; ROMA, W. N. L.; SOUZA, M. P. DE.
2004
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Ethanol; Fuel; Sustainability.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/24600
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The effect of biofuel on the international oil market AgEcon
Hochman, Gal; Rajagopal, Deepak; Zilberman, David.
This paper derives a method to quantify the short- to medium-run impact of biofuel on fuel markets, assuming that these markets are dominated by cartel of oil-rich countries, and that prices in these countries are set to maximize the sum of domestic consumer and producer surplus, leading to a wedge between domestic and international fuel prices. We model this behavior by applying the optimal export tax model (henceforth, the cartel-of-nations model) to the fuel markets. Using data from 2007 to calibrate the model, we show that the introduction of biofuels lowered global gasoline and diesel consumption and international fuel prices by about 1% and 2%, respectively. We identify large differences between the effects of introducing biofuels using the...
Tipo: Conference Paper or Presentation Palavras-chave: Energy; OPEC; Biofuel; Fuel; Carbon savings; Optimal export tax model; Cheap oil; Resource /Energy Economics and Policy; F1; Q4.
Ano: 2010 URL: http://purl.umn.edu/61722
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The effect of biofuel on the international oil market AgEcon
Hochman, Gal; Rajagopal, Deepak; Zilberman, David.
This paper derives a method to quantify the impact of biofuel on fuel markets, assuming that these markets are dominated by cartel of oil-rich countries, and that prices in these countries are set to maximize the sum of domestic consumer and producer surplus, leading to a wedge between domestic and international fuel prices. We model this behavior by applying the optimal export tax model (henceforth, the cartel-of-nations model) to the fuel markets. Using data from 2007 to calibrate the model, we show that the introduction of biofuels reduces global fossil fuel consumption and international fuel prices by about 1% and 2%, respectively. We identify large differences between the effects of introducing biofuels using the cartel-of-nations model, in contrast...
Tipo: Working or Discussion Paper Palavras-chave: Energy; OPEC; Biofuel; Fuel; Carbon savings; Optimal export tax model; Cheap oil; International Relations/Trade; Resource /Energy Economics and Policy; F1; Q4.
Ano: 2010 URL: http://purl.umn.edu/59170
Registros recuperados: 10
Primeira ... 1 ... Última
 

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