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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
13/11/2001 |
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Data da última atualização: |
06/05/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LAL, H. |
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Afiliação: |
HARBANS LAL, Consultor CPATSA. |
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Título: |
Mechanics of animal-drawn wheeled tool carrier. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 14., 1984, Fortaleza. Resumos... Fortaleza: SBEA: UFC, 1984. |
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Páginas: |
p. 91. |
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Idioma: |
Inglês |
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Conteúdo: |
The mechanics of animal-drawn wheeled tool carrier has been worked out analysing the forces acting during its field operation. A mathematical model has been developed relating pull required to operate the machine to various operational and design parameters. The analysis shows that the soil resistance force contributes equal to its magnitude and the weight of the chassis plus operator(s) and its changes make little effect on the pull requirement. The effect of other factors such as direction of fesultant soil resistance force, the systems of beam connection to the chassis and coefficient of friction between the wheels and the ground surface on the pull requirement have also been studied and reported in the paper |
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Palavras-Chave: |
Agricultural mechanization; Animal drawn; Macanizacao agricola. |
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Thesagro: |
Equipamento; Mecanização agrícola; Tração Animal. |
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Thesaurus Nal: |
equipment. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66748/1/Digitalizar0004.pdf
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Marc: |
LEADER 01332nam a2200205 a 4500
001 1134424
005 2022-05-06
008 1984 bl uuuu u00u1 u #d
100 1 $aLAL, H.
245 $aMechanics of animal-drawn wheeled tool carrier.
260 $aIn: CONGRESSO BRASILEIRO DE ENGENHARIA AGRÍCOLA, 14., 1984, Fortaleza. Resumos... Fortaleza: SBEA: UFC$c1984
300 $ap. 91.
520 $aThe mechanics of animal-drawn wheeled tool carrier has been worked out analysing the forces acting during its field operation. A mathematical model has been developed relating pull required to operate the machine to various operational and design parameters. The analysis shows that the soil resistance force contributes equal to its magnitude and the weight of the chassis plus operator(s) and its changes make little effect on the pull requirement. The effect of other factors such as direction of fesultant soil resistance force, the systems of beam connection to the chassis and coefficient of friction between the wheels and the ground surface on the pull requirement have also been studied and reported in the paper
650 $aequipment
650 $aEquipamento
650 $aMecanização agrícola
650 $aTração Animal
653 $aAgricultural mechanization
653 $aAnimal drawn
653 $aMacanizacao agricola
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
08/01/2024 |
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Data da última atualização: |
08/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ZANELLA, L.; BORÉM, R. A. T.; SOUZA, C. G.; ALVES, H. M. R.; BORÉM, F. M. |
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Afiliação: |
LISIANE ZANELLA, UNIVERSIDADE FEDERAL DE LAVRAS; ROSÂNGELA ALVES TRISTÃO BORÉM, UNIVERSIDADE FEDERAL DE LAVRAS; CAROLINA GUSMÃO SOUZA, EMPRESA DE PESQUISA AGROPECUÁRIA DE MINAS GERAIS; HELENA MARIA RAMOS ALVES, CNPCa; FLÁVIO MEIRA BORÉM, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Atlantic forest fragmentation analysis and landscape restoration management scenarios. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Natureza & Conservação, v. 10, n.1, p. 57-63, 2012. |
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DOI: |
http://dx.doi.org/10.4322/natcon.2012.010 |
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Idioma: |
Inglês |
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Conteúdo: |
The goals of this research were to analyze the fragmentation of the Atlantic Forest and to create landscape management scenarios for the municipality of Carmo de Minas, MG, Brazil. We used landscape metrics to analyze the fragmentation process of the study area, which was historically exploited for agropastoral activities. Future scenarios were modeled to represent the potential restoration of the environment based on the behavior of the natural vegetation units. The natural vegetation in the study area is highly fragmented, and the environmental integrity of its remnants is severely threatened. The management scenarios showed how the restored natural units behave in the landscape as well as the isolation and connectivity between them. Using these models, future dynamics of the landscape can be predicted. Two important actions for the conservation of the remaining natural vegetation were identified: the maintenance of secondary forest and the restoration of permanent preservation areas. |
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Thesaurus NAL: |
Ecology; Landscapes; Vegetation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160534/1/Atlantic-Forest.pdf
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Marc: |
LEADER 01650naa a2200217 a 4500
001 2160534
005 2024-01-08
008 2012 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4322/natcon.2012.010$2DOI
100 1 $aZANELLA, L.
245 $aAtlantic forest fragmentation analysis and landscape restoration management scenarios.$h[electronic resource]
260 $c2012
520 $aThe goals of this research were to analyze the fragmentation of the Atlantic Forest and to create landscape management scenarios for the municipality of Carmo de Minas, MG, Brazil. We used landscape metrics to analyze the fragmentation process of the study area, which was historically exploited for agropastoral activities. Future scenarios were modeled to represent the potential restoration of the environment based on the behavior of the natural vegetation units. The natural vegetation in the study area is highly fragmented, and the environmental integrity of its remnants is severely threatened. The management scenarios showed how the restored natural units behave in the landscape as well as the isolation and connectivity between them. Using these models, future dynamics of the landscape can be predicted. Two important actions for the conservation of the remaining natural vegetation were identified: the maintenance of secondary forest and the restoration of permanent preservation areas.
650 $aEcology
650 $aLandscapes
650 $aVegetation
700 1 $aBORÉM, R. A. T.
700 1 $aSOUZA, C. G.
700 1 $aALVES, H. M. R.
700 1 $aBORÉM, F. M.
773 $tNatureza & Conservação$gv. 10, n.1, p. 57-63, 2012.
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Registro original: |
Embrapa Café (CNPCa) |
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