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Comparative analysis between a PEM fuel cell and an internal combustion engine driving an electricity generator: Technical, economical and ecological aspects
(Elsevier B.V., 2014-02-05)
In the recent years the fuel cells have received much attention. Among various technologies, the Proton Exchange Membrane Fuel Cell (PEMFC) is currently the most appropriate and is used in several vehicles prototype. A ...
Joint economic design of X̄ and R control charts for processes subject to two independent assignable causes
(Chapman Hall Ltd, 1993-11-01)
A model for the joint economic design of X̄ and R control charts is developed. This model assumes that the process is subject to two assignable causes. One assignable cause shifts the process mean; the other shifts the ...
Palabras pronunciadas en la sesión inaugural por el secretario del CCE, señor Porfirio Morera
(CEPAL, Sede Subregional en México, 2017)
Happiness Economics, Eudaimonia and Positive Psychology: From Happiness Economics to Flourishing Economics
(Springer, 2015-08)
A remarkable current development, happiness economics focuses on the relevance of people’s happiness in economic analyses. As this theory has been criticised for relying on an incomplete notion of happiness, this paper ...
VALIDITY OF LEVEL EDUCATION AND INCLUSION IN PRODUCTION PROCESS BY CORRELATION ANALYSIS
(Univ Estadual Paulista-unesp, Fac Ciencias Letras Assis, 2016-01-01)
This article seeks to demonstrate through empirical basis and correlation analysis, the validity of the statement that the inclusion in the labor market is directly correlated with the level of education, ie with the ...
Analysis of the economic and financial performance of the meat and by-products companies listed on b3 in the face of the brazilian fiscal crisis
(2021-03-01)
The Brazilian beef agroindustrial system presents positive aspects related to the generation of income and jobs, in addition to the high volume of production and exports, making the country one of the largest producers in ...
Infuěncia do relevo na produtividade e custos do harvester
(2010-03-01)
Among the several variables that influence timber harvesting is the slope, which influences the productivity of forest machines. In this experiment the harvester was evaluated technically and economically while cutting and ...
Hydrogen production by biogas steam reforming: A technical, economic and ecological analysis
(2013-08-28)
Fuel cells are electrochemical energy conversion devices that convert fuel and oxidant electrochemically into electrical energy, water and heat. Compared to traditional electricity generation technologies that use combustion ...
Sustainable development in the BRICS countries: an efficiency analysis by data envelopment
(Taylor & Francis Inc, 2014-06-01)
There is much concern about the social and environmental impacts caused by the economic growth of nations. Thus, to evaluate the socio-economic performance of nations, economists have increasingly addressed matters related ...