Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Alexander Alfonso Alvarez"'
Autor:
Meylí Valin Fernández, José Luis Valin Rivera, Frank Pérez Rodríguez, Henry Figueredo Losada, María Elena Fernández Abreu, Francisco Rolando Valenzuela Diaz, Angel Rodríguez Soto, Alexander Alfonso Alvarez, Roberto Quinteros, Cristobal Galleguillos Ketterer, Gilberto García del Pino
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2677 (2023)
A characterization of composite materials of a polyester matrix reinforced with natural fibers of Cuban henequen and organophilized Cuban bentonite was carried out, the experimental results of which are used to formulate, implement, and validate a sc
Externí odkaz:
https://doaj.org/article/1514536a85f1439480e821ce175ae263
Autor:
Artur Siqueira Nóbrega de Freitas, Alexander Alfonso Alvarez, Roberto Ramos, Ettore Apolonio de Barros
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 7, p 515 (2020)
The structure of an autonomous underwater vehicle (AUV), usually composed of a cylindrical shell, may be exposed to high hydrostatic pressures where buckling collapse occurs before yield stress failure. In conventional submarines, welded stiffeners i
Externí odkaz:
https://doaj.org/article/67fe1d2ae8894dab92e817333247e0e5
Autor:
Alejandra Gallegos-Alcaíno, Nathaly Robles-Araya, Camila Avalos, Alexander Alfonso-Alvarez, Carlos A. Rodríguez, Héctor Valdés, Norma A. Sánchez-Flores, Juan C. Durán-Alvarez, Monserrat Bizarro, Francisco J. Romero-Salguero, Adriana C. Mera
Publikováno v:
Nanomaterials, Vol 12, Iss 7, p 1161 (2022)
Recently, bismuth oxyiodide (BiOI) is an attractive semiconductor to use in heterogeneous photocatalysis processes. Unfortunately, BiOI individually shows limited photocatalytic efficiency, instability, and a quick recombination of electron/holes. Co
Externí odkaz:
https://doaj.org/article/975ca813aed6465a88ec04b528981b91
Autor:
Reinaldo Benítez Montalvo, Leisi Villar Ledo, Armando Díaz Concepción, Alexander Alfonso Alvarez, Ángel Rodríguez Soto, Alberto Rodríguez Piñeiro
Publikováno v:
Ingeniare. Revista chilena de ingeniería. 30:124-133
Autor:
Meylí Valin Fernández, María José Ahumada González, Rolando Briones Oyanadel, José Luis Valin Rivera, Angel Rodríguez Soto, Alvaro González Ortega, Cristobal Galleguillos Ketterer, Alexander Alfonso Alvarez, Francisco Rolando Valenzuela Diaz, Gilberto García del Pino
Publikováno v:
Polymers; Volume 15; Issue 6; Pages: 1571
The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in
Autor:
Ettore Apolonio de Barros, Roberto Luiz Ramos, Artur Siqueira Nóbrega de Freitas, Alexander Alfonso Alvarez
Publikováno v:
Journal of Marine Science and Engineering
Volume 8
Issue 7
Journal of Marine Science and Engineering, Vol 8, Iss 515, p 515 (2020)
Volume 8
Issue 7
Journal of Marine Science and Engineering, Vol 8, Iss 515, p 515 (2020)
The structure of an autonomous underwater vehicle (AUV), usually composed of a cylindrical shell, may be exposed to high hydrostatic pressures where buckling collapse occurs before yield stress failure. In conventional submarines, welded stiffeners i
Autor:
Gabriel Sarti Lopes, Ettore Apolonio de Barros, Fábio Campopiano, Humberto Trindade da Silva, Aléxis K. Uenojo, Igor S. Silva, Alexander Alfonso Alvarez, Eduardo Lorenzetti Pellini
Publikováno v:
IFAC-PapersOnLine. 51:8-13
A trimaran is proposed as an autonomous surface vehicle aimed to oceanographic field missions and research on navigation of autonomous underwater vehicles. The paper presents a discussion comparing this kind of vessel to the monohull and catamaran ty
Autor:
Pedro Álvarez Kile, Armando Díaz Concepción, Alberto J. Rodríguez Piñeiro, Joel Guillén García, Joe Gerald Guillén García, Alexander Alfonso Álvarez
Publikováno v:
Revista Científica de Ingeniería Energética, Vol 41, Iss 2, Pp 1-11 (2020)
El trabajo tuvo como objetivo analizar las causas de la desviación del índice de consumo de combustible de los generadores Hyundai 1,7 MW. Los métodos utilizados fueron consulta de expertos, el método hipotético deductivo para la confección del
Externí odkaz:
https://doaj.org/article/35c882b3485542c9abd8d174f45f5baa
Autor:
Iván Jesús Díaz Artigas, Armando Díaz Concepción, Alberto J. Rodríguez Piñero, Alexander Alfonso Álvarez, Jorge Enrique Tamayo Mendoza
Publikováno v:
Revista Científica de Ingeniería Energética, Vol 41, Iss 1, Pp 1-6 (2020)
Se analizó el aprovechamiento energético de las briquetas como biocombustible sólido densificado, fabricadas con aserrín y corteza de pino, utilizando como aglutinante un residuo de la destilación de la resina de pino, a partir de residuos mader
Externí odkaz:
https://doaj.org/article/f2630c7a9d244f2ab3d4f0a0e15b067b
Autor:
Iván Jesús Díaz Artigas, Armando Díaz Concepción, Rodríguez Piñero, Alberto J., Alexander Alfonso Alvarez, Jorge Enrique Tamayo Mendoza
Publikováno v:
Redalyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::26141e862a397d09e08fd4e96976372f
https://www.redalyc.org/articulo.oa?id=329164251002
https://www.redalyc.org/articulo.oa?id=329164251002