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Algoritmos de seleção de características personalizados por classe para categorização de texto
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Ciencia da Computacao, 2017)
Automated acoustic detection of a cicadid pest in coffee plantations
(2020-02-01)
South american countries are the largest coffee producers in the world. Nevertheless, Cicadidae, the colloquial term for cicadas, is one of the key pests responsible for dropping the production. Currently, there is no ...
Automatic methodology for mapping of coastal zones in video sequences
(Elsevier Science, 2016-08)
Gathering precise and detailed geomorphological and dynamic information of coastal processes is increasingly required for environmental studies and coastal management policies as well. Traditional methods for in situ ...
Model predictive control of high-power modular multilevel converters-an overview
(IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2020)
Trade shocks and factor adjustment frictions: implications for investment and labor
(Universidad Nacional de La Plata. Facultad de Ciencias Económicas. Departamento de Economía, 2013-12)
When export opportunities arise, the gains from trade can only be materialized if the economy adjusts. In order to expand and meet new markets, firms must hire new workers and tune their capital stock by investing in product ...
Modulação vetorial otimizada para o conversor packed U-cell
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2020-09-24)
This master’s dissertation proposes space vector modulation strategies for the Five-Levels Packed
U-Cell converter with optimization on the commutation number and balance of the floating
capacitors by use a cost function. ...
Diseño de postes de transmisión eléctrica en hormigón pretensado
(2016)
Technology of prestressed concrete transmission poles structures is not fully developed in Ecuador. Almost all poles are manufactured with the conventional methodology of reinforced concrete. The advantages offered by this ...
A cost-effective model for the gasoline blend optimization problem
(Wiley, 2016-03)
Gasoline blending is a critical process with a significant impact on the total revenues of oil refineries. It consists of mixingseveral feedstocks coming from various upstream processes and small amounts of additives to ...
Thermoeconomic analysis applied to an alternative wastewater treatment
(Pergamon-Elsevier B.V. Ltd, 2010-10-01)
This work develops a methodology for the determination of costs associated to products generated in a small wastewater treatment station. The methodology begins with plant units identification, relating their fluid and ...
Thermoeconomic analysis applied to an alternative wastewater treatment
(Pergamon-Elsevier B.V. Ltd, 2010-10-01)
This work develops a methodology for the determination of costs associated to products generated in a small wastewater treatment station. The methodology begins with plant units identification, relating their fluid and ...