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Maderas. Ciencia y Tecnologia
En este estudio se propone y resuelve un modelo de programación entera mixta para la planificación táctica de la cosecha forestal. Se considera, el reemplazo de productos, la diferenciación de rodales y canchas de trozado. Las instancias usadas disponen de hasta: 60 rodales, 25 canchas de acopio, 10 clientes, 8 períodos de planificación y 20 reglas...
Maderas. Ciencia y Tecnologia Hamid Taghiyari ♠ Behrooz Mohammad-Panah Jeffrey Morrell
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Maderas. Ciencia y Tecnologia
The effects of wollastonite fibers on the physical and mechanical properties of medium-density fiberboards composed of wood fibers with up to 10 % camel-thorn chips were studied. Approximately 30 % of the wollastonite fibers were less than 100 nm while the remainder were less than 1 μm. Wollastonite fibers significantly improved most of the physica...
Maderas. Ciencia y Tecnologia Solange De Oliveira Araújo ♠ Benedito Rocha Vital Braulio Oliveira Angélica De Cássia Oliveira Carneiro Ana Lourenço Helena Pereira
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Maderas. Ciencia y Tecnologia
Heat treatment improves some wood properties namely: equilibrium moisture, dimensional stability and durability and mechanical properties. In this study, the heat treatment was applied to woods of three natural species from Brazil: Aspidosperma populifolium (peroba mica), Dipteryx odorata (cumaru) and Mimosa scabrella (bracatinga). The woods were h...
Maderas. Ciencia y Tecnologia Merlin Simo-Tagne ♠ Romain Rémond Yann Rogaume André Zoulalian Patrick Perré
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Maderas. Ciencia y Tecnologia
This study provides the sorption isotherm, its hysteresis and their mass transfer properties of four Central Africa Tropical woods widely used for building construction: frake (Terminalia Superba), lotofa (Sterculia Rhinopetala), sapele (Entandrophragma Cylindricum) and ayous (Triplochiton Scleroxylon). Characterization of these four species in par...
Maderas. Ciencia y Tecnologia Morteza Nazerian ♠ Zahra Beyki Rahiim Gargarii Farhad Kool
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Maderas. Ciencia y Tecnologia
The current study aims to improve properties of particleboard manufactured from cotton (Gossium hirsutum) stalks glued with urea formaldehyde. To this aim, panel density (at three levels: 0,5; 0,65 and 0,8 g/cm 3), press temperature (at two levels: 150 and 180 °C) and press closing speed (at two levels: 4 and 8mm/s) were selected as independent var...
Maderas. Ciencia y Tecnologia Rafael De Avila Delucis ♠ René Herrera Diaz Jalel Labidi Darci Gatto
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Maderas. Ciencia y Tecnologia
RESUMEN La degradación superficial en madera de exteriores se debe a una combinación de factores meteorológicos inherentes al entorno de exposición y a la colonización de organismos xilófagos. Desde un punto de vista técnico y económico se trata de uno de los principales problemas para la industria de productos y materiales hechos a partir de la ma...
Ciencia y Tecnologia, Maderas.
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Maderas. Ciencia y Tecnologia
Subterranean termites are serious pests of wood in service in much of the world. One of the most popular techniques for monitoring and controlling termites is the use of in-ground monitoring stations. Different cellulosic matrices were evaluated in terms of mass loss, moisture content variation and termite presence, accounting for spatial coordinat...
Maderas. Ciencia y Tecnologia Pedro Henrique Gonzalez De Cademartori André Luiz Missio Bruno Mattos Darci Gatto
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Maderas. Ciencia y Tecnologia
We investigated the effect of outdoor exposure on the wood surface from three fast-growing Brazilian eucalypts through color, wetting and thermal analyzes. Gympie messmate (Eucalyptus cloeziana), rose gum (Eucalyptus grandis) and blue gum (Eucalyptus saligna) woods were exposed outdoors in a subtropical region for 360 days. We performed three colle...
Maderas. Ciencia y Tecnologia Sónia Duarte Adam Taylor Jeff Lloyd Marta Duarte Lina Nunes
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Maderas. Ciencia y Tecnologia
Subterranean termites are serious pests of wood in service in much of the world. One of the most popular techniques for monitoring and controlling termites is the use of in-ground monitoring stations. Different cellulosic matrices were evaluated in terms of mass loss, moisture content variation and termite presence, accounting for spatial coordinat...
G\~A$^3$mez-S\~A, Isabel Garc\~Aa-Olmo, Juan Lara-Buil, Leticia L\~A$^3$pez-Luque, Rafael Prades, Cristina others, Maderas. Ciencia y Tecnologia
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Maderas. Ciencia y Tecnologia
