Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Raimundo Carlos Silverio Freire"'
Publikováno v:
IEEE Access, Vol 11, Pp 117040-117052 (2023)
To prevent and mitigate the environmental impact of the transportation and extraction of oil and its derivatives, the conception, design, development, and implementation of an embedded system for wireless sensor networks (WSN) is presented is this pa
Externí odkaz:
https://doaj.org/article/872a4e73e71a445883f37383b9ff25a7
Autor:
Josnier Ramos Guardarrama, Maykop Pérez Martínez, Raimundo Carlos Silverio Freire, Orestes Hernández Areu
Publikováno v:
Revista Científica de Ingeniería Energética, Vol 43, Iss 2, Pp 1-11 (2022)
En este trabajo se analiza el comportamiento del modelo en el espacio de estados del convertidor reductor bajo la condición de frontera entre el modo de conducción continuo y discontinuo. El modelo matemático que representa el convertidor, está d
Externí odkaz:
https://doaj.org/article/05e59d6cec324e27b4b8698ffb66c8dd
Autor:
Stephanie Kamarry Alves De Sousa, Raimundo Carlos Silverio Freire, Elyson Adan Nunes Carvalho, Lucas Molina, Phillipe Cardoso Santos, Eduardo Oliveira Freire
Publikováno v:
IEEE Access, Vol 10, Pp 6929-6939 (2022)
In this paper we present a new approach to cooperative overhead object transportation with obstacle avoidance for multi-robot systems. This approach considers situations in which there are obstacles that only pose a risk to the robots involved in the
Externí odkaz:
https://doaj.org/article/80d55b157b4b4f639c5877cc5768e992
Autor:
Phillipe Cardoso Santos, Raimundo Carlos Silverio Freire, Elyson Adan Nunes Carvalho, Lucas Molina, Eduardo Oliveira Freire
Publikováno v:
IEEE Access, Vol 8, Pp 208836-208849 (2020)
The inverse kinematics of mobile manipulators is a challenging problem due to the high degree of kinematic redundancy added by the coupling of the mobile platform and the manipulator. Some different approaches have been proposed to solve this problem
Externí odkaz:
https://doaj.org/article/16fa08c129ed4e2694ddce11309fa735
Publikováno v:
Revista Científica de Ingeniería Energética, Vol 40, Iss 3, Pp 264-272 (2019)
En el presente trabajo se realiza una aplicación informática encargada de supervisar el monitoreo de una red inteligente en las condiciones de una infraestructura menos desarrollada y mediante el uso de software libre. Actualmente con la incorporac
Externí odkaz:
https://doaj.org/article/20f5d9b8cad74cdf94c945f40c5a4dd0
Autor:
Joelton Fonseca Barbosa, Jos� A.F.O. Correia, Pedro A. Montenegro, Raimundo Carlos Silverio Freire J�nior, Grzegorz Lesiuk, Ab�lio M.P. De Jesus, Rui A.B. Cal�ada
Publikováno v:
Frattura ed Integrità Strutturale, Vol 13, Iss 48, Pp 400-410 (2019)
A new formulation of a Logistic deterministic S-N curve is applied to fatigue data of metallic materials from ancient Portuguese riveted steel bridges. This formulation is based on a modified logistic relation that uses three parameters to fit the lo
Externí odkaz:
https://doaj.org/article/1925ac270be743ceb1ca995b1cdf724b
Autor:
Franciélio Gomes da Silva, Raimundo Carlos Silverio Freire Júnior, Selma Hissae Shimura da Nobrega, Avelino Manuel da Silva Dias
Publikováno v:
Materials Research, Vol 23, Iss 2 (2020)
Abstract This study aimeds at investigating the mechanical behavior of an E-glass fiber-reinforced epoxy resin of a laminated composite sandwich with honeycomb core and a central hole, used in the aeronautics industry submitted to bending loading. Th
Externí odkaz:
https://doaj.org/article/ce09280f9ed54ec48976500e7b7306a7
Autor:
Lucemaide Batista Miranda Ferreira, Raimundo Carlos Silverio Freire Júnior, Elmo Thiago Lins Cöuras Ford
Publikováno v:
Materials Research, Vol 22, Iss 3 (2019)
Natural fibers are increasingly used as composite reinforcement in different fields of engineering. Caraua fiber stands out for its good mechanical properties and adherence to resin; however, little is known about its behavior in the manufacture of a
Externí odkaz:
https://doaj.org/article/e347b3fda08f4ac9a7f7b6228820d998
Autor:
Rodrigo Leone Alves, Ana Maria Jeronimo Soares, Raimundo Carlos Silverio Freire, Carlos Manoel Gregório Santos Lima
Publikováno v:
Holos, Vol 2, Iss 0, Pp 3-23 (2016)
Oral communication comprises one of the most important forms of social interaction. The process of learning the spoken language depends on the hearing, therefore, the total or partial loss of hearing sensitivity hinders such aspect. Digital signal pr
Externí odkaz:
https://doaj.org/article/1ff37e8aba3146b88d26a80b94ff08b3
Autor:
Sistanley Jones Lima Bispo, Raimundo Carlos Silverio Freire Júnior, Eve Maria Freire de Aquino
Publikováno v:
Materials Research, Vol 18, Iss 4, Pp 833-837 (2015)
Over the last few years, great interest has been shown by researchers in presenting alternative proposals for the design and fabrication of materials with good mechanical properties and low cost for a variety of applications. With this in mind, a stu
Externí odkaz:
https://doaj.org/article/11e54118906149928268658dd763281f