Listar por autor "Moya-Roque, Róger"
Mostrando ítems 1-20 de 76
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Allowable stress design by structural grade for nine plantation woods of Costa Rica
Moya-Roque, Róger; Gonzáles-Beltrán, Guillermo -
Application of the X-ray densitometry in the evaluation of the quality and mechanical properties of biomass pellets
Tomazello-Filho, Mario; Valaert, Jorre; Tenorio-Monge, Carolina; Moya-Roque, Róger (Elsevier, 2015-04)The use of the X-ray technique and the X-ray densitometry to determine pellet particle distribution and to understand the biomass compaction and its effects in pellet properties has been limited. The present work evaluates ... -
Aprovechamiento e industrialización de árboles de Alnus acuminata Kuntz de plantaciones de rápido crecimiento en Costa Rica
Moya-Roque, Róger; Esquivel-Segura, Edwin; Urueña-Parada, Erika -
Aspectos importantes sobre la trabajabilidad de la madera de melina (Gmelina arborea)
Moya-Roque, Róger; Leandro-Zúñiga, Laura; Córdoba-Foglia, Rafael; Serrano-Montero, José Rafael; Monge-Romero, Francisco -
Aspectos relevantes a considerar durante el secado convencional de la madera de melina (Gmelina arborea (Roxb))
Moya-Roque, Róger; Muñoz-Acosta, Freddy -
Balance Energético en Dos Sistemas de Secado de Residuos Ligno-Celulósicos Producidos en Costa Rica.
Moya-Roque, Róger; Tenorio-Monge, Carolina (Instituto Tecnológico de Costa Rica., 2012)Los desechos ligno-celulósicos en la agricultura y en el sector forestal constituyen un alto porcentaje. La industria forestal se caracteriza por presentar una baja eficiencia en la utilización de la materia prima (40-60%), ... -
Biomass yield and energy potential of short-rotation energy plantations of Gmelina arborea one year old in Costa Rica
Arias-Aguilar, Dagoberto; Briceño-Elizondo, Elemer; Tenorio-Monge, Carolina; Moya-Roque, Róger (Elsevier, 2016)Short-rotation woody plantations have been recently established in Costa Rica and Gmelina arborea has gained popularity The present work assesses tree diameter and height, biomass distribution, specific gravity, green ... -
Biopulp from pineapple leaf fiber produced by colonization with two white-rot fungi: Trametes versicolor and Pleurotus ostreatus
Rodríguez-Zúñiga, Ana; Rodriguez-Solis, María; Villalobos-Barquero, Verónica; Vega-Baudrit, José; Moya-Roque, Róger; Berrocal-Jiménez, Alexander; Starbird-Pérez, Ricardo (BioResources, 2016)Trametes versicolor and Pleurotus ostreatus were used for the biopulping from pineapple leaf fiber (PALF). PALF substrate was subjected to T. versicolor for 2 to 6 weeks and to P. ostreatus for 4 to 8 weeks. The yields, ... -
Characterisation of pellets made from oil palm residues in Costa Rica
Valaert, Jorre; Tenorio-Monge, Carolina; Moya-Roque, Róger (Journal of Oil Palm Research, 2016)Presently, there are around 67 000 ha of oil palm (Elaeis guineensis) in Costa Rica. The resulting post-harvest residues are not being used currently. These residues can be employed for generation of heat by means of ... -
Characteristics and properties of torrefied biomass pellets from Gmelina arborea and Dipterix panamensis at different times
Gaitán-Álvarez, Johanna; Moya-Roque, Róger (Revista Chapingo, Serie Ciencias Forestales y del Ambiente, 2016)Torrefaction and pelletizing were studied in the generation of energy from lignocellulosic residues to increase the energy properties of the biomass. The aim of this study was torrefied sawdust from Gmelina arborea and ... -
Combustibles forestales superficiales y riesgo de incendio en dos estadios de sucesión secundaria y bosques primarios en el Parque Nacional Palo Verde, Costa Rica
Rojas-Chaves, Pedro Andrey; Vílchez-Alvarado, Braulio; Moya-Roque, Róger; Sasa-Marín, Mahmood -
Combustibles forestales superficiales y riesgo de incendio en dos estadios de sucesión secundaria y bosques primarios en el Parque Nacional Palo Verde, Costa Rica
Rojas-Chaves, Pedro Andrey; Vílchez-Alvarado, Braulio; Moya-Roque, Róger; Sasa-Marín, Mahmood -
Comportamiento ante cargas laterales de diafragmas verticales de madera de Hieronyma Alchorneoides (Allemão) y Gmelina Arborea (Roxb. Ex Sm.) en Costa Rica.
Leiva-Leiva, Tonny (Instituto Tecnológico de Costa Rica, 2015)To deploy structural use of the wood it’s necessary to know the efforts of this material in the face of loads in civilian use. The objective of this work is to determinate the vertical and horizontal displacement for two ... -
Consideraciones y recomendaciones prácticas para mejorar la calidad de la madera seca de Acacia mangium Willd
Tenorio-Monge, Carolina; Moya-Roque, Róger -
Defectos comunes encontrados en las piezas aserradas y cepilladas de melina (Cuarta parte)
Gonzáles-Trejos, Guillermo; Moya-Roque, Róger; Monge-Romero, Francisco -
Defectos comunes encontrados en las piezas aserradas y cepilladas de melina (Primera parte)
Gonzáles-Trejos, Guillermo; Moya-Roque, Róger; Monge-Romero, Francisco -
Defectos comunes encontrados en las piezas aserradas y cepilladas de melina (Segunda parte)
Gonzáles-Trejos, Guillermo; Moya-Roque, Róger; Monge-Romero, Francisco