Sawing
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. 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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2. GROWTH, YIELD AND ECONOMIC ANALYSIS OF AN EUCALYPT-SOYBEAN CONSORTIUM: EFFECT OF THE DISTANCE BETWEEN TREES WITHIN THE ROW1
RESUMO Os sistemas agroflorestais (SAF) devem beneficiar todos os componentes do consórcio. O objetivo deste trabalho foi avaliar o efeito da distância entre plantas na linha de plantio sobre o crescimento e a produção do componente arbóreo e da cultura agrícola e, sobre a viabilidade econômica do consórcio. Para isso plantou-se clone de eucalipto no
Rev. Árvore. Publicado em: 13/06/2019
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3. Avaliação das tensões de crescimento e comparação de métodos de desdobro em madeira de Eucalyptus dunnii.
1999
Colombo: EMBRAPA-CNPF. Publicado em: 2011
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4. Avaliação da sucessão ecológica e do desenvolvimento de árvores em uma lavra de cascalho revegetada do Distrito Federal, DF - Brasil
Brazilian savanna holds the greatest floristic biodiversity of this type in the World. 41,6% of brazilian savanna vegetation was substituted by anthropic activities. One of them is mining. The recuperation process of the degraded area is slow and complex and involves revegetation activities and soil management practice. The present study was established in a
Publicado em: 2009
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5. Caracterização e classificação de resíduo sólido "pó de rocha granítica" gerado na indústria de rochas ornamentais
The ornamental rock industry generates huge amounts of wastes during the process of extraction and sawing of rock blocks. The ornamental rock powder waste is a non-biodegradable material, which represents the increase in environmental problem. The waste was collected from a granitic rock sawing plant located in Santo Antônio de Pádua, Rio de Janeiro. The c
Química Nova. Publicado em: 2008
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6. DiagnÃstico do setor de rochas ornamentais e de revestimento do Estado de Pernambuco
In this work the geologic considerations on the granites diggings for ornamental ends are presented, a profile of the Brazilian sector of ornamental rocks and a diagnosis of the productive chain of the State of Pernambuco, involving the mining (main deposits, methods of cultivate, technology of cut for the dismounting of blocks), sawing shops and marble shop
Publicado em: 2008
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7. Biological aspects of Oncideres saga (Dalman) (Coleoptera: Cerambycidae) and effects of its damages on Acacia mangium Willd / Aspectos biológicos de Oncideres saga (Dalman) (Coleoptera: Cerambycidae) e efeitos de seus danos em Acacia mangium Willd
The present study was performed to obtain information on the biology of Oncideres saga (Dalman, 1823) and to evaluate the effects of its girdling of branches and trunks of Acacia mangium Willd. trees in terms of increase in diameter and height . The study on the biology of this insect pest was performed in a plantation of A. mangium located in Coimbra- MG, b
Publicado em: 2008
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8. CARACTERIZAÇÃO SÓCIO-ECONÔMICA E AMBIENTAL DA ATIVIDADE DO TRATAMENTO DE QUARTZITO NA REGIÃO DE OURO PRETO
Quartzite is a kind of rock that after a simple process becomes a product of great economic value due to its esthetic characteristics as well as its physical and mechanical applications serving primarily as a tile covering for interior and external walls. The region surrounding Ouro Preto has many companies which utilize quartzite for this purpose. The major
Publicado em: 2007
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9. Nitrificação de efluente de reator anaeróbio compartimentado em filtros percoladores com a utilização da serragem de couro do tipo wet blue como meio suporte / Nitrification of anaerobic baffed reactor effluent into trickling filters using wet blue leather sawing as a filter packing
The aim of the work is to promote the ammoniacal nitrogen removal from anaerobic baffed reactor effluent using aerobic trickling filters, through the nitrification process. The research was developed in two phases; firstly the leather sawing was prepared through sieving and washing, later the domestic sewage was applied into four tricking filters. The F1 and
Publicado em: 2006
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10. Relation between sawing process and quality of sawed surfaces of ornamental granites / Relação entre processo de corte e qualidade de superfícies serradas de granitos ornamentais
The industry of ornamental and dimension stone can be improved by the global and integrated overview of stone properties and performance machines, equipment and insums. Although with excellent growth in production and exportation and great technological advance, the empirism predominates in the productive process, a practice that might leads to loses, failur
Publicado em: 2006
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11. Influence of petrographic characteristics of granites on the industrial process of blocks sawing / Influência das características petrográficas de granitos no processo industrial de desdobramento de blocos
The sawing of granites blocks using multiblade gangsaws is one of the most complex operations in the stone processing industry. The slab surface quality (roughness) obtained after the sawing process determines the time and the inputs required in subsequent polishing operations and thus has a direct implication on the final product cost. Although Brazil is on
Publicado em: 2005
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12. A new route to process diamond wires
We propose an original route to process diamond wires, denominated In Situ Technology, whose fabrication involves mechanical conformation processes, such as rotary forging, copper tubes restacking, and thermal treatments, such as sintering and recrystallisation of a bronze 4 wt.% diamond composite. Tensile tests were performed, reaching an ultimate tensile s
Materials Research. Publicado em: 2003-06