|
|
|
|
|
| Rashid, Gholami; Hekmat, Rabbani; Ali Nejat, Lorestani; Payam, Javadikia; Farzad, Jaliliantabar. |
| Agricultural machinery is an important source of emission of air pollutant in rural locations. This work deals with the effects of types of tractors and operation conditions on engine emission. The values of some exhaust gases (HC, CO, CO2, O2 and NO) from two common tractors (MF285 and U650) at three situations (use of ditcher, plowing and cultivator) were evaluated in the West of IRAN (Kermanshah). In addition, engine oil temperature at operation conditions was measured. Also results showed the values of exhaust HC and O2 of MF285 are lower than U650, while the other exhausts gases (CO, CO2, and NO) of MF285 are higher than U650. Value of NO emission increased as engine oil temperature increased. All of exhaust gases except CO have a significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental pollution; Exhaust gases; Tractors. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2363 |
| |
|
|
| Servadio, Pieranna; Belfiore, Nicola Pio. |
| In this paper, according to ISO 2631/1, 1997, the influence of the mechanical vibrations on human health is evaluated and assessed with four methods: the health guidance caution zones (HGCZ), the estimated vibration dose value (eVDV), the fourth power vibration dose value (VDV), a combination of various methods presented in literature. The normative refers to the HGCZ, which involves the average RMS vibration emission level and its exposure time during a given working day. Values of crest factor for the operator seat showed that Z-axis was the more solicited, even if all the crest factor values are below 9. Results of mechanical vibration in respect of comfort and health, according with the method of the HGCZ, showed that only case B, at higher forward... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Tractors; Vibrations; Ergonimics whole body vibration; Tractor; Comfort; Health risk; Tyres. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2544 |
| |
|
| |
|
|
| SPERRY, S.; CARVALHO JUNIOR, C. H. T. de. |
| O objetivo da publicacao e colocar a disposicao dos agricultores que se reunem em associacoes ou em qualquer outra forma de organizacao, elementos que facilitem a participacao em acoes coletivas e, ao mesmo tempo, a administracao dessas atividades. Partiu-se do pressuposto de que, conhecendo e adotando procedimentos especificos para cada umas das atividades propostas pela associacao, a participacao nos resultados tornar-se-ia mais eficiente e, portanto, mais efetiva a coesao social do grupo, porque casa uma compreenderia melhor o papel que deveria desempenhar. Os recursos sugeridos foram construidos no dia-a-dia das pesquisas realizadas por especialistas em organizacao de produtores rurais junto aos agricultores, principalmente em municipios do Estado de... |
| Tipo: Livros |
Palavras-chave: Farmers associations; Agricultural collective work; Agroindústria; Agroindustry; Associação; Associations; Farm tractors; Lavoura Comunitária; Small farmers; Agricultura Familiar; Associação Rural; Cerrado; Indústria; Indústria Agrícola; Trator; Veiculo; Family farms; Industry; Tractors. |
| Ano: 2000 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/564318 |
| |
|
| |
|
| |
|
| |
|
|
|
