Forest Machines
Mostrando 1-12 de 15 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. A Regional Legacy Soil Dataset for Prediction of Sand and Clay Content with Vis-Nir-Swir, in Southern Brazil
ABSTRACT The success of soil prediction by VIS-NIR-SWIR spectroscopy has led to considerable investment in large soil spectral libraries. The aims of this study were 1) to develop a soil VIS-NIR-SWIR spectroscopy approach using legacy soil samples to improve spectral soil information in a regional scale; (2) to compare six spectral preprocessing techniques;
Rev. Bras. Ciênc. Solo. Publicado em: 15/08/2019
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3. PRECARIZAÇÃO DO TRABALHO: RISCOS ERGONÔMICOS AOS OPERADORES DE MÁQUINAS ADAPTADAS PARA COLHEITA FLORESTAL
RESUMO Este estudo teve como objetivo avaliar diferentes tipos de máquinas adaptadas para as atividades de colheita florestal mecanizada, de forma a quantificar o grau de atendimento aos princípios ergonômicos aplicáveis às máquinas florestais, bem como os riscos ergonômicos aos quais os trabalhadores estão expostos. Foram avaliadas as seguintes máq
Rev. Árvore. Publicado em: 29/05/2017
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4. Comparativo entre processos florestais terceirizados e primarizados / Comparison between outsourced and primarized forest processes
The Outsourcing and the Primarization constitute management strategies been used by Brazilians forest companies. However, although its use is increasing, technical, economics and strategy terms are not being studied in Brazil, mainly on the forestry sector. Therefore, the principal goal on this research was to compare Outsourcing and Primarization Models inc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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5. 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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6. Avaliação ergonômica de uma colhedora de cana-de-açúcar
Objetivou-se, no presente trabalho, realizar uma avaliação ergonômica de uma colhedora de cana-de-açúcar, localizada no município de Barra Bonita, estado de São Paulo, em janeiro de 2007. A avaliação ergonômica foi conduzida em uma colhedora de cana-de-açúcar que apresentou produtividade de 831,84 ton dia-1 na safra de 2006/2007, com base no manu
Ciência e Agrotecnologia. Publicado em: 2011-02
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7. Antropometric profile of workers and ergonomic evaluation of sugar-cane harvesters / PERFIL ANTROPOMÃTRICO DE OPERADORES E AVALIAÃÃO ERGONÃMICA DE COLHEDORAS DE CANA-DE-AÃÃCAR.
The mechanical harvesting of sugar cane has intensified in last few years, due to manual harvesting costs increase and the necessity of burning decrease. This work had as general objective to conduct an ergonomic evaluation of machines used to harvest sugarcane and the profile of the workers in this activity. The research was carried out at a plant of sugar
Publicado em: 2007
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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. Diagnosis of the forest crop and wood transportation in fomented rural properties in the State of Espírito Santo / Diagnóstico da colheita e transporte florestal em propriedades rurais fomentadas no Estado do Espírito Santo
This study was developed with information obtained from interviews with 71 farm owners fomented by Aracruz Celulose, in the State of Espírito Santo. The main objective of this study was to diagnose the forest crop and wood transportation in their farms, considering technical, economic, social and environmental aspects. Those farm owners were responsible for
Publicado em: 2006
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11. Análise da capacidade técnica e econômica dos prestadores de serviços no setor de colheita florestal / Technique and financial analysis of harvest forestry sector contractors
Os sistemas mecanizados de colheita florestal estão se modernizando com a introdução constante de novas tecnologias, visando o aumento da produção e a diminuição dos custos. A maior parte das máquinas disponíveis no mercado nacional são originárias da América do Norte e Escandinávia e possui um alto custo de aquisição. No entanto os prestadore
Publicado em: 2006
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12. 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