Gasoline Prices
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. DESIGN OF ELECTRONIC CONTROL GOVERNOR FOR A SINGLE CYLINDER GASOLINE ENGINE BASED ON AN INTELLIGENT SENSING ALGORITHM
ABSTRACT At present, most large machinery and vehicle engines are electronically controlled but their electronic control systems are too expensive to be popularised and applied in small gasoline engines with relatively low prices. Therefore, small gasoline engines still use mechanical speed regulators. Mechanical speed regulators not only have the defects of
Eng. Agríc.. Publicado em: 2020-08
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2. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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3. Elasticidades de curto e longo prazos da demanda por Ãlcool hidratado no Brasil
Since March 2003, with the launch of flex fuel cars, consumption of hydrated alcohol again grows strongly in Brazil. The option of the consumer choice, holder of this technology, which allows the use of hydrated alcohol, gasoline or any mixture of proportion between the two in a single tank of fuel, leads to take as main variable the price of fuels (hydrated
Publicado em: 2009
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4. Transmissão de preços entre os mercados do etanol e da gasolina desde o lançamento dos carros flex-fuel, no mercado brasileiro
Quando dois ou mais mercados, anteriormente separados, começam a apresentar certa convergência de preços, diz-se que eles estão integrados. Geralmente, os pesquisadores têm objetivado o estudo da integração entre mercados externos e internos (integração espacial) ou entre os diferentes elos de uma cadeia produtiva (integração vertical), mas de um
Publicado em: 2009
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5. O Etanol e a Gasolina sÃo Substitutos Perfeitos? / The Etanol and the Gasoline are Perfect Substitutes?
The relative domestic prices behavior for fuels (relationship among price of ethanol and gasoline) was analyzed accord to panel monthly ones on 27 Brazilian units during the period from July 2001to February 2008. They released by ANP and through Box-Jenkins methodology. It was empirically verified that relative prices seem to follow a first-order autoregress
Publicado em: 2008
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6. Função de acoplamento t-Student assimetrica : modelagem de dependencia assimetrica / Skewed t-Student copula function : skewed dependence modelling
The Skewed t-Student distribution family, constructed upon the multivariate normal mixture distribution, known as mean-variance mixture, composed with the Inverse-Gamma distribution, has many desirable flexibility properties for many distribution asymmetry structures. These properties are explored by constructing copula functions with asymmetric dependence.
Publicado em: 2008
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7. Investigating the dynamics of the asymmetry the brazilian gasoline prices: a time series approach. / Investigando a dinâmica da assimetria nos preços da gasolina brasileira: uma abordagem de séries temporais.
This work has the objective to present an econometric analysis of the prices in the Brazilian retail gasoline market, highlighting a non-linear adjustment with the international oil prices and Brazilian exchange rate. In the theoretical part the co-integration analysis with asymmetric error correction models TAR and M-TAR are exposed. Besides, is shown that
Publicado em: 2006
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8. O carro a álcool : uma experiência de política pública para a inovação no Brasil
As development depends on the country capacity for researching, developing and issuing tecnological innovation, the present stage of development of Brazil reflects the absence of the National Innovation System, as studied by Freeman (1997) and Viotti (2002). However, the case of the alcohol car constitutes an experience rich on lessons about the interaction
Publicado em: 2006
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9. Estudo de comportamento dos preÃos da gasolina na RegiÃo Metropolitana do Recife: uma aplicaÃÃo de modelos auto-regressivos
This study analyses initially the crude oil industry, where technician questions about crude oil and gasoline are analyzed. Besides, a description about the formation of gasoline prices in Brazil is done. Then, a overview about the models used to estimate the asymmetry in crude oil and gasoline prices is developed. Models that investing if the gasoline price
Publicado em: 2005
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10. A desregulamentação e o desempenho do complexo sucroalcooleiro no Brasil.
This work analyzed the evolution of the relation between the sugar and alcohol complex and the State from 1975 to 2002, when there was a change from public intervention, marked by Proálcool, to a new situation, in which deregulation is proposed. We attempted to interpret the main political and economical stipulators of the process, as well as describe the w
Publicado em: 2005
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11. Adjustments in the ethanol and gasoline markets in the deregulation process. / Ajustes nos mercados de álcool e gasolina no processo de desregulamentação.
The economic opening of the sugar-ethanol market was started with the extinction of the "Instituto do Açúcar e do Álcool" ( SugarEthanol Institute ) in 1990, which controlled its activities since 1933. The deregulation of gasoline C prices to the consumer took place in 1996, generating the deregulation process in the sector as a whole. The general aim o
Publicado em: 2002
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12. Potencial para aproveitamento alternativo de frações pesadas de petroleo
An analysis of the international oil market indicates an increasing offer and a reducing demand of heavy crude oils. On the other hand, the demand for light fuels like gasoline and diesel oil is continuosly increasing. The global environment concern is pushing the oil companies to develop new technologies and improve the existing ones in order to reduce the
Publicado em: 1997