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Registros recuperados: 7
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A case study of ships forming and not forming tracks in moderately polluted clouds OMA
Noone, K.J.; Öström, E.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Johnson, D.W.; Taylor, J.P.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; O'Dowd, C.D.; Smith, M.H.; Durkee, P.A.; Nielsen, K.; Hudson, J.G.; Pockalny, R.A.; De Bock, L.; Van Grieken, R.E.; Gasparovic, R.F.; Brooks, I..
The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. <i>In situ</i> measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aerosols; Air pollution; Albedo; Anthropogenic factors; Atmospheric boundary layer; Atmospheric particulates; Chemical plumes; Cloud physics; Clouds; Droplets; Fuels; Ocean-atmosphere system; Pollution effects; Radiative transfer; Ships; Size distribution.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8840
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Aplicação do óleo do dendê como combustível em motores ciclo diesel. Infoteca-e
MIRANDA, R. de M.; MOURA, R. D..
Estudo sobre a extracao do oleo de dende para combustivel em motores ciclo diesel.
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Brasil; Amazonas; Rio Preto da Eva; Diesel oil.; Combustível; Dendê; Elaeis Guineensis; Extração; Óleo Diesel.; Fuels; Supercritical fluid extraction..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666489
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Biodiésel a partir de algas, ¿el combustible ideal para la Antártica? OceanDocs
Cid, P..
Durante la campaña antártica 2008 de la Universidad de Magallanes, el equipo liderado por el autor efectuó una evaluación de las necesidades energéticas de la base Bernardo O’Higgins (63º19’15” S, 57º53’55” O) y realizó exploraciones en los alrededores con el objetivo de identificar materias primas adecuadas para la elaboración in situ del combustible verde. En esta oportunidad, se encontraron algunas variedades de algas y microalgas que fueron consideradas con buen potencial para la producción de biodiésel.
Tipo: Journal Contribution Palavras-chave: Algae; Fuels; Fuels; Algae; Http://aims.fao.org/aos/agrovoc/c_3136; Http://aims.fao.org/aos/agrovoc/c_258.
Ano: 2008 URL: http://hdl.handle.net/1834/3373
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Equipments to manage soil and irrigated rice straw for the sequential sowing of soybean in tropical floodplains. Repositório Alice
SILVA, J. G. da; NASCENTE, A. S.; SILVEIRA, P. M. da.
The presence of straw hinders the sowing of soybean cultivated in succession to rice, in areas irrigated by flooding. This study aimed to evaluate the combination of different configurations of a rice harvester and subsequent activities in the operational and energetic demand of rice straw management and in the soil surface roughness, in order to cultivate soybean in succession. Three independent experiments were conducted in a completely randomized design, as well as evaluated the fuel consumption, effective operating speed, working capacity and final surface roughness of the ground. The energy costs of harvesting rice do not increase when the automated harvester operates with a spreader to distribute the straw on the ground and to avoid the formation of...
Tipo: Artigo de periódico Palavras-chave: Soil surface roughness; Rugosidade superficial do solo; Solo; Cobertura do Solo; Consumo; Combustível; Manejo do Solo; Palha de Arroz; Semeadura; Várzea; Soil surface sealing; Vegetation cover; Fuels; Consumption (economics); Rice straw; Floodplains.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121823
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Household Energy Demand and the Equity and Efficiency Aspects of Subsidy Reform in Indonesia AgEcon
Olivia, Susan; Gibson, John.
The proper design of price interventions requires consideration of equity and efficiency effects. In this paper, budget survey data from 29,000 Indonesian households are used to estimate a demand system for five energy sources, which is identified by the spatial variation in unit values (expenditures divided by quantities). We correct for the various quality and measurement error biases that result when unit values are used as proxies for market prices. The price elasticities are combined with tax and subsidy rates to calculate the marginal social cost of price changes for each item. The results suggest that even at high levels of inequality aversion there is a strong case for reducing the large subsidies on gasoline and kerosene, supporting the reforms...
Tipo: Conference Paper or Presentation Palavras-chave: Demand elasticities; Energy; Fuels; Subsidies; Unit Values; Resource /Energy Economics and Policy; D12; Q31.
Ano: 2006 URL: http://purl.umn.edu/25745
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Implementation of a system for determining tractor fuel consumption and velocity. Repositório Alice
TANIWAKI, K.; FOLLE, S. M.; FRANZ, C. A. B..
Tipo: Parte de livro Palavras-chave: Laboratory automation system; Consumption; Agricultura; Automação; Cerrado; Combustível; Consumo; Laboratório; Mecanização; Trator; Velocidade; Agriculture; Fuels; Mechanization; Tractors; Velocity.
Ano: 1994 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/550839
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La política de precios de los combustibles y la distribución del ingreso en el Perú: 1985-1990 AgEcon
Pasco-Font Quevedo, Alberto; Briceno Lira, Arturo.
Este documento evalúa los efectos sobre la distribución del ingreso de la política de precios e impuestos a los combustibles aplicada entre julio de 1985 y julio de 1990, período en el cual el gobierno manipuló activamente dichos precios e impuestos para combatir la inflación y mejorar la distribución del ingreso.
Tipo: Working or Discussion Paper Palavras-chave: Combustibles; Polica de precios; Distribucion del ingreso; Fuels; Price policy; Income distribution; Peru; Political Economy; L71; P22; D33.
Ano: 1992 URL: http://purl.umn.edu/42250
Registros recuperados: 7
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