Wood Logs
Mostrando 13-24 de 31 artigos, teses e dissertações.
-
13. Produção de painéis de partículas orientadas (OSB) a partir da madeira de um híbrido de Pinus elliottii var. elliottii var. Pinus caribaea var. hondurensis / Production of oriented strand board (OSB) from a hybrid of Pinus elliottii var. elliottii x Pinus caribaea var. hondurensis
The study about the quality of the wood of Pinus hybrids in Brazil is still recent. On the other hand, some data indicate that the material can be considered promising from the point of view silvicultural. This study aimed to evaluate the potential use of wood hybrid Pinus elliottii var. elliottii x Pinus caribaea var. hondurensis for the production of orien
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
-
14. Accoustic assessment from the tree and the freshly-felled logs for estimating wood stiffness / Estimativa de propriedades de rigidez da madeira a partir de avaliação acústica na árvore e em toras recém abatidas
Recentes avanços internacionais indicam a possibilidade de prever, a partir da árvore viva ou em toras recém abatidas, informações estratégicas que podem auxiliar a tomada de decisões econômicas e ambientais e possibilitar utilização mais eficaz da madeira. Estas informações podem ser usadas para classificar as árvores de acordo com as possibili
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2011
-
15. Aplicação de técnica óptica no estudo da distribuição de tensões em modelos reduzidos de feixe de toras e peças serradas / Use of optical techniques applied on stress distribution study of reduced bundle log models and sawn pieces
A silvicultura ocupa a segunda posição no agronegócio brasileiro, exibindo grande importância econômica e social para o país. As atividades econômicas associadas ao reflorestamento enfrentam diversos obstáculos internos e externos, os quais se contrapõem ao crescimento desse setor no país. Nesse sentido, o transporte de madeira se torna um fator de
Publicado em: 2011
-
16. Curvas de isopropriedades da madeira em árvores de Pinus caribaea var. bahamensis / Curves of isoproperties in Wood from Pinus caribaea var. bahamensis trees
The objective of this research has been to determine qualitative parameters of Pinus caribaea var. bahamensis wood in three diameter classes with a common base in 1969 and 1992 plantations from Floresta Estadual from the Manduri Instituto Florestal SP. three trees per class were collected and 3-m high logs were removed. From each log the main plank was remov
Publicado em: 2010
-
17. nfluence of the woodworkability parameters of Eucalyptus sp. wood in specific energy consumption for cutting in circular saw / InfluÃncia dos parÃmetros de usinagem da madeira de Eucalyptus sp. no consumo de energia especÃfica de corte em serra circular
New technologies used in the cutting of Eucalyptus sp. for the carbonization continuous process require care. The choice of tool and cutting speeds and feed influence on reducing the time and cost of energy during processing, optimizing its production. The objective was to verify the influence of the woodworkability parameters on specific energy spent cuttin
Publicado em: 2009
-
18. Metodologia para planejamento da colheita e transporte florestal utilizando geotecnologia e pesquisa operacional / Methodology for planning forest harvesting and transport using geotechnology and operations research.
Considering the current scenario in which the use of forest resources is growing quickly, it is necessary the use of techniques and tools to facilitate the short, medium and long run planning, thus facilitating the search for a more rational use of these precious resources, assisting and supporting the decision making. This study aimed to use the geographic
Publicado em: 2009
-
19. Coleobrocas (Insecta: Coleoptera) associadas à madeira de Tectona grandis Linn. f (Lamiaceae) / Borers (Insecta: Coleoptera) in wood of Tectona grandis Linn. f (Lamiaceae)
This paper evaluates the species of wood borers occurring on cut wood with bark and debarked wood of Tectona grandis. The statistical model was carried out in a completely randomized design. The treatments were defined in a 2x4 factorial array with two treatment (logs with bark and logs debarked) and four storage times (30, 60, 90 and 120 days), and the data
Publicado em: 2008
-
20. Qualidade da Madeira Serrada e dos Painéis Colados Lateralmente Obtidos de um Plantio de Eucalyptus saligna Smith Visando o Segmento Moveleiro / Quality of the Sawnwood and Glued Panels Obtained of a Eucalyptus saligna Smith Plantation for Furniture Industry
In this research were studied thirty trees of Eucalyptus saligna Smith wood, sampled in a twenty year-old plantation located in Seropédica/RJ. Each tree supplied a log with 2.30 meters in length for the study of the sawn process and panels production (PCLs). The processing of the logs was made in the LPZ Madeiras and Artefatos Ltda sawmill - Piraí/RJ, bein
Publicado em: 2008
-
21. Hybrid heuristic strategies for planning and scheduling forest harvest and transportation activities in short term / Estrategias hibridas para um problema de planejamento e escalonamento de atividades florestais em curto prazo
This thesis aimed at studying and solving a planning and scheduling problem stemming from forest harvest and wood transportation activities. Our approach treated a real problem faced by large pulp and paper companies in Brazil. It consists in planning, for a short-term horizon, the harvesting operations in different forest areas and the transportation of the
Publicado em: 2008
-
22. Variabilidade radial e longitudinal de propriedades da madeira de angico-vermelho (Anadenanthera peregrina (L.) Speg.) / Radial and longitudinal variability of properties of the wood of angico-vermelho (Anadenanthera peregrina (L.) Speg.)
The objective of this work was to determine the variability in the radial and longitudinal directions of some properties of the angico-vermelho (Anadenanthera peregrine (L.) Speg.) wood, from an area of native forest, located in the campus of the Universidade Federal de Viçosa, State of Minas Gerais, Brazil. The specific mass (basic and apparent), retractil
Publicado em: 2008
-
23. SUBSÍDIOS PARA O PLANEJAMENTO DA PRODUÇÃO DE Pinus elliottii Engelm. NA SERRA DO SUDESTE, RIO GRANDE DO SUL / ALLOWANCES FOR PLANNING THE PRODUCTION OF Pinus elliottii Engelm. IN SERRA DO SUDESTE, RIO GRANDE DO SUL
In Rio Grande do Sul, the Serra do Sudeste has been the target of large forest investments due to government programs for sectorial regional development in the three levels of the administration. One of the species with the largest planted area in the region is the Pinus elliottii Engelm. Two large neighboring counties with typical physiography areas of Serr
Publicado em: 2008
-
24. Evaluation of Eucalyptus sp. wood for flooring production from small diameters logs / AvaliaÃÃo da madeira de Eucalyptus sp. para a produÃÃo de piso a partir de toras de pequenos diÃmetros.
Ãrvores de Eucalyptus sp. com diÃmetro mÃdio de 20 cm sÃo consideradas como pequenas por algumas indÃstrias de base florestal. Entretanto, existem aquelas que produzem pisos de dimensÃes pequenas e que podem aproveitar essas Ãrvores. A produÃÃo de pisos de madeira a partir de toras de pequenas dimensÃes de Eucalyptus sp. contribui para o aumento da
Publicado em: 2008