Forest Mechanization
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Distúrbios osteomusculares relacionados ao trabalho de operadores da colheita florestal mecanizada / Work-related musculoskeletal disorders of operators of mechanized harvesting
The Repetitive Strain Injury / Work Related Musculoskeletal Disorders (LER / DORT) can arise in any field of activity; just there is a causal factor, ie, functions and jobs that expose workers to risk factors. These risk factors are present in the operator of the harvesting machinery activities. Throughout the workday upper limbs are highly required, necessi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/07/2011
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2. Segurança operacional de exploração florestal mecanizada.
1983
Belém. Publicado em: 2011
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3. Construção de estradas florestais e transporte florestal rodoviário na região amazônica.
1980
Belém. Publicado em: 2011
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4. Análise comparativa de custo de exploração florestal mecanizada em terra firme.
1991
Belém. Publicado em: 2011
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5. The effects of spacing and arrangement of eucalypt plantations on operational capacity and costs of a forest harvester / Efeito do espaçamento e arranjo do plantio do eucalipto na capacidade operacional e custo da colheita com colhedora florestal
A escolha do espaçamento de plantio tem como objetivo inicial proporcionar para cada árvore o espaço suficiente para se obter o crescimento máximo com melhor qualidade e menor custo. Do ponto de vista da colheita mecanizada, o aumento da densidade da floresta implica diretamente na redução do volume individual das árvores, ocasionando também uma redu
Publicado em: 2009
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6. Land evaluation of the Maputo province (Mozambique) : a case study of the Changalane and Mazimunhama hydrographic basins / Avaliação de terras da provincia de Maputo (Moçambique) : o caso das bacias hidrograficas de Changalane e Mazimunhama
The study area consists of the sub-basins of the Changalane and Mazimunhama rivers, tributaries of the Tembe river, situated in the Maputo province of Southern Mozambique. The region is recognized by the national and provincial authorities as being under pressure from: agricultural use, deforestation due to uncontrolled exploitation of forests, forest fires
Publicado em: 2009
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7. Evaluation of environment impact of the technological innovation on forest harvesting / Avaliação de impactos ambientais da inovação tecnológica na colheita florestal
In considering the development of forest harvesting in the country, it is observed that the progress was very big. Since the 60 s until the present day there were many changes occurred in this sector, with the operations evolved from a manual process for the semimechanized, became in recent decades a significant aspect in terms of mechanization. Thus, become
Publicado em: 2008
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8. Análise técnica e econômica de um sistema de colheita florestal / Technical and economic analysis of a forest harvest system
Hand logging systems were the first adopted, mostly, in the exploitation of native forests, with no concern with the rationalization and productivity of such activities. In Brazil, the first activities of forest harvesting were carried out along the coast, at that time of discovery, when the main traded species was brazilwood. Machine selection and developme
Publicado em: 2007
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9. Modelagem e quantificaÃÃo da compactaÃÃo de latossolos cultivados com eucalipto / Pattern and quantification from compactation in the Latosols cultivated with eucalypt.
The harvest operations and wood transport involves intensive traffic of machines on the soil, which may traffic in a same line several times, or randomly. Besides the passes number, the wood load transported also may affect the soil compaction, when the applied pressures for the machines exceed its bearing support capacity, altering the place where the root
Publicado em: 2006
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10. Mechanical tillage of mining degraded areas at Jamari National Forest (Rondonia - BR) / Mecanização no preparo de solo em areas degradadas por mineração na Floresta Nacional do Jamari (Rondonia-BR)
The usage of a nation s natural resources directly implies the manipulation of natural environments on the terrestrial surface. In this scenario, estimates indicate that mining contributes to one percent of the degradation of the soils of the planet. It is observable that, although it seems to be a small number, this percentage denotes a high intensity of de
Publicado em: 2005
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11. Determinação e quantificação de fatores de influência sobre a produtividade de "Harvesters" na colheita de madeira. / Quantification and determination of influency factors over harvesters productivity on logging.
The Brazilian cellulose and paper industry has been total sales of US$ 7.5 billions on 2000, with consume of 14 millions of m3 of eucalypt wood. Logging and wood transportation are responsible for 50% of final cost of wood. On cut-to-length system, the harvester is the main machine used on felling and processing of wood. This is an equipment with high cost a
Publicado em: 2002
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12. Planejamento da qualidade do preparo mecanizado do solo para implantação de florestas de Eucalyptus spp utilizando o método desdobramento da função qualidade (QFD). / Planning of the quality of the mechanized soil preparation for eucalyptus spp using the quality function deployment.
A qualidade do ambiente das áreas destinadas às florestas é afetada pelos problemas de compactação do solo devido a causas naturais e induzidas pelo tráfego de veículos. O objetivo deste trabalho foi definir as prioridades do preparo mecanizado do solo a partir das exigências das mudas de Eucalyptus spp. A execução do trabalho foi realizada entre d
Publicado em: 2002