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Costs and Operational Performance of Eucalyptus Wood Extraction Using Aerial CableCustos erendmentos operacionais da extração de madeira de eucalipto com cabo aéreo
(2010-01-01)
This study aimed to technically and economically evaluate the aerial cable in the extraction of eucalyptus wood in mountainous region. The technical analysis comprised a study of time and movements by continuous method and ...
Effect of feller-buncher model, slope class and cutting area on the productivity and costs of whole tree harvesting in Brazilian eucalyptus stands
(2021-08-01)
The operational productivity and costs of tree felling operations can be influenced by several factors, among which, the machine characteristics, slope class, the cutting area and the individual volume of the trees stand ...
Costing school transport in Spain
(TAYLOR & FRANCIS LTD, 2006)
School transport in Spain is conceived administratively as a regular, but special, public transport service financed by the Spanish regional governments through private sector contracts adjudicated by public tendering. As ...
A costs structure analysis of the Brazilian sugar and ethanol companies
(UNIV FED RURAL PERNAMBUCO, DEPT LETRAS CIENCIAS HUMANAS, 2008)
The Brazil consolidated itself as the largest world producer of sugarcane, sugar and ethanol. The creation of the Programa Nacional do Alcool - PROALCOOL and the growing use of cars with flexible motors were some of the ...
Economic feasibility of abscisic acid application to uniform ‘Rubi’ grapes coloration
(2021-01-01)
São Miguel Arcanjo municipality (23º 31 ’S, 47º 35’ O and average altitude of 660 m) is part of one of the three main grape productive regions of São Paulo state, Brazil. The ‘Rubi’ grapes (Vitis vinifera) production ...
Análise econômica de milho convencional e transgênico em dois sistemas de preparos de solo
(2015-01-01)
Corn is an agricultural crop of major importance regarding its wide use and production forms. Given these background, this work aimed at analyzing economically the corn production chain with different hybrids and soil ...
Operation of the argentinean interconnected electricity network
(Elsevier Science, 2009-08)
A methodology to select optimally the electricity generation plants of the Argentinian interconnected network is developed. The electricity generation grid has different fossil fuel, hydroelectric and nuclear power stations. ...
Infuěncia do relevo na produtividade e custos do harvester
(2010-03-01)
Among the several variables that influence timber harvesting is the slope, which influences the productivity of forest machines. In this experiment the harvester was evaluated technically and economically while cutting and ...
Infuěncia do relevo na produtividade e custos do harvester
(2010-03-01)
Among the several variables that influence timber harvesting is the slope, which influences the productivity of forest machines. In this experiment the harvester was evaluated technically and economically while cutting and ...
Design and implementation of a low cost particulate material transducer
(Institute of Electrical and Electronics Engineers Inc., 2018)
This work presents the design, implementation, calibration and test of a transducer system for Particle Material - PM based on the sensor GP2Y1010. This sensor is the principal element of many commercial PM transducers, ...