Wood Logs
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. EFFECT OF TRAFFIC INTENSITIES OF A DIRECTIONAL FELLER AND SKIDDER ON THE COMPACTION OF A BRUNO NITISOL
RESUMO Esta pesquisa avaliou a compactação de um Nitossolo Bruno causada por diferentes intensidades de tráfego do feller direcional e skidder na colheita de madeira em um povoamento de Pinus taeda. Os dados foram coletados em uma empresa florestal localizada no estado do Paraná, Brasil. O procedimento de amostragem foi realizado pela instalação de qua
Rev. Árvore. Publicado em: 23/09/2019
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2. The Effect of Weather on Air-Drying of Messassa Wood
Abstract This study intended to assess the effect of weather on the air-drying process of messassa wood (Brachystegia spiciformis Benth) in two areas of Mozambique (Machipanda and Beira city). First, the logs were sawn into 27 mm thick boards. Every five days the moisture content of the wood was determined by the control samples. For each region, the drying
Floresta Ambient.. Publicado em: 13/06/2019
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3. Technological properties of particleboards produced using mixture of pines and bamboo
RESUMO: Este estudo tem por objetivo avaliar as propriedades tecnológicas de painéis de madeira produzidos com partículas de bambu da espécie Phyllostachysedulis, e do gênero tradicionalmente utilizado pelo setor para a produção dos painéis particulados no Brasil, o Pinus spp. As varas de bambu com três anos de idade foram coletadas em Frei Rogéri
Cienc. Rural. Publicado em: 13/06/2019
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4. Effect of Log Length on Forestry Loading and Unloading
ABSTRACT This study aimed to technically evaluate loading and unloading with different wood lengths . Data used were obtained from log harvesting areas of a forestry company in southern Brazil, on operations with loblolly pine logs. The study addressed the analysis of time and motion, being divided into loading, unloading, mooring and unmooring. Four treatm
Floresta Ambient.. Publicado em: 04/04/2019
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5. Mechanical Properties of Thermally Modified Corymbia Citriodora and Eucalyptus Saligna Woods
ABSTRACT This study aimed at evaluating thermal modification in mechanical properties of Corymbia citriodora and Eucalyptus saligna woods compared with a control. To do so, three samples of each species were selected, with approximately 40 years, which had the first two three-meter long logs removed. Wood thermal modification was done through final temperat
Floresta Ambient.. Publicado em: 07/02/2019
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6. Lumber Yield of Four Native Forest Species of the Amazon Region
ABSTRACT The objective of this study was to evaluate the volumetric lumber yield of four native species of the Amazon Region: Cedrinho (Erisma uncinatum Warm), Cumaru ( Dipteryx odorata Aublet), Garapeira (Apuleia leiocarpa Voguel), and Cambará (Qualea paraensis Ducke). Twelve logs of each species with different diameters were randomly selected from differ
Floresta Ambient.. Publicado em: 24/01/2019
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7. Water Flow Evaluation in Eucalyptus and Corymbia Short Logs
ABSTRACT The aim of this study is to evaluate the free and adsorbed water flow in short logs of Eucalyptus urophylla and Corymbia citriodora clones. 40 cm long, short logs were extracted from the base of the trees. Three trees each of C. citriodora and E. urophylla (A and B clones) were used. 27 logs were debarked and dried to achieve stabilization of mass.
Floresta Ambient.. Publicado em: 18/06/2018
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8. Dendrological Characterization as Inspection Resources of Caatinga Wood Market
ABSTRACT This study aimed to distinguish five native forest species of the Caatinga Biome from the exotic invasive algaroba (Prosopis juliflora (Sw.) DC.), considering dendrologic characteristics of bark and wood, in order of providing subsidies for the inspection of the wood market in this Biome. The native species studied were jurema-preta (Mimosa tenuifl
Floresta Ambient.. Publicado em: 07/06/2018
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9. Natural Wood Resistance of Mimosa caesalpiniifolia in Field Testing
ABSTRACT The natural wood resistance of sabiá (Mimosa caesalpiniifolia) was evaluated under field conditions for use in organic agriculture. A total of 97 one-meter length logs with bark and diameter classes (5.0-7.9 and 8.0-11 cm) were fixed (0.4 m) in the soil at a distance of 0.5 m from the edges of a forest fragment in Viana, Espírito Santo, Brazil and
Floresta Ambient.. Publicado em: 01/02/2018
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10. Wood Permeability in Eucalyptus grandis and Eucalyptus dunnii
ABSTRACT The objective of this study was to evaluate the flow of air and water in Eucalyptus grandis and Eucalyptus dunnii wood. Wood was collected from four trees aged 37 years in an experimental plantation of the Federal University of Lavras, Brazil. Planks were cut off the basal logs to produce specimens for air and water permeability testing. Results ind
Floresta Ambient.. Publicado em: 11/12/2017
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11. Physical Properties of Wood from Steamed Eucalyptus grandis Logs
ABSTRACT This study aimed to evaluate the effect of log steaming on the physical properties of Eucalyptus grandis Hill ex Maiden wood. Logs with diameters between 20 and 25 cm and length of 2.9 m were studied. Half the logs were maintained in their original condition, and the other half were steamed at 90 °C for 20 hours. Later, the logs were sawn into flat
Floresta Ambient.. Publicado em: 21/11/2017
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12. Energetic use of wood waste in one center for the production of red ceramics in São Paulo State / Uso energético de resíduos madeireiros em um pólo de produção de cerâmicas vermelhas do Estado de São Paulo
The use of forest biomass is an important alternative of renewable energy source, economic, technical and environmentally viable, fighting for space with other energy sources, more expensive or non-renewable, such as natural gas, electricity, diesel and LPG. Within the industrial sector, biggest consumer of biomass energy, the segment of red ceramics represe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2012