Results 21 to 30 of about 136,284 (289)
Engenharia Agrícola, 2007 As máquinas agrícolas, depois da terra, representam o maior investimento para o agricultor, e sua adequação ao tamanho da propriedade é um fator fundamental na redução dos custos.
Leandro M. Gimenez, Marcos Milan
doaj +1 more source
A Calculus for Higher Spin Interactions [PDF]
, 2013 Higher spin theories can be efficiently described in terms of auxiliary St\"uckelberg or projective space field multiplets. By considering how higher spin models couple to scale, these approaches can be unified in a conformal geometry/tractor calculus ...
Joung, Euihun +2 more
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Energy production and use in Dutch agriculture [PDF]
, 1974 Energy relationschips in the agriculture of one of the most densely populated areas of the world, the Nether lands, are described. The Netherlands appear selfsupporting in food energy.
Dekkers, W.A. +2 more
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Operating parameters and emission evaluation of tractors running on diesel oil and biofuel
Research in Agricultural Engineering, 2011 This work is aimed at the evaluation of the operating parameters and emission of two tractors: Hürlimann H-488 DT and Hürlimann XB Max 100. The measurements were done on a test bench in the laboratory of the Agroscope Reckenholz-Tänikon Research Station ...
D. Müllerová +4 more
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Soil Strain Under Three Tractor Configurations [PDF]
, 1992 Soil compaction can cause significant crop yield reductions. Effective management of soil compaction caused by tractors requires an understanding of the influence of the tractive system on soil compaction.
Bern, Carl +3 more
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Using the Kaplan–Meier Estimator to Assess the Reliability of Agricultural Machinery
Agronomy, 2022 Kaplan–Meier analyses can be used in many disciplines, e.g., agricultural engineering. Agricultural machinery and vehicles can be regarded as objects that ‘die’ because, like living creatures, they failed, although after repair they can be used until ...
Karol Durczak +5 more
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Country life: agricultural technologies and the emergence of new rural subjectivities [PDF]
, 2015 Rural areas have long been spaces of technological experimentation, development and resistance. In the UK, this is especially true in the post-second world war era of productivist food regimes, characterised by moves to intensification.
Bear, Christopher, Holloway, Lewis
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Ciência Rural, 2001 Foi desenvolvido um ensaio de campo com o objetivo de avaliar as condições da ocorrência do fenômeno do "galope" do trator, que consiste em vibrações de baixa freqüência e grande amplitude.
José Fernando Schlosser +2 more
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CR-Tractors and the Fefferman Space
, 2008 We develop the natural tractor calculi associated to conformal and CR structures as a fundamental tool for the study of Fefferman's construction of a canonical conformal class on the total space of a circle bundle over a non--degenerate CR manifold of ...
Cap, Andreas, Gover, A. Rod
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