Skidding is considered to be one of the most stressful works for forest environment. This paper presented results obtained from analysis soil deformation and selected physical mechanical parameters soils on skid trails in Gorce National Park. The study analyzed two horse tractor that are continuous use park. Measurements were recorded before (summer) after (autumn) a total 81 skidding cycles, u...

The IEEE 1451 family of standards was created to resolve the issues and problems associated with the proliferation and the heterogeneity of sensor networks. This paper will discuss the approach taken in the implementation of an IEEE 1451.2 microcontroller-based STIM in developing a suite of smart sensors for use in an autonomous vehicle. The autonomous vehicle sensor network environment was ini...

Tree regeneration was compared among closed-canopy sites and 4±11-year old natural and felling gaps in a selectively logged semideciduous tropical forest in southeastern Mexico. Closed-canopy sites and gaps were selected strati®ed randomly. In addition, all large natural and felling gaps encountered were sampled. All stems 5 cm dbh were sampled in sets of 10 m plots in closed-canopy sites and g...

Nacrtak A comparison of the ergonomic performance of 13 harvesting machine models was assessed from an ergonomic viewpoint. The main objective of the study was to compare ergonomic performance to harvesting machine operators’ work and propose viable solutions to improve the work environment. The principal assessed ergonomic requirements were operators’ workspace, operators’ seats, visibility, w...

Forest operations can lead to increased runoff and soil loss on roads skid trails. The aim of this study was evaluate the effectiveness two erosion control treatments applied different segments trails following six natural rainfall events. A total 162 plots 10 m long by 4 wide were established in a Hyrcanian deciduous forest assess ground-based harvesting traffic. experimental setup consisted t...

estimating of forest equipment productivity is an important aspect of managing cost in forestry, which leads to reduction of operations expenses. in other words, high capital cost in forest harvesting, is a good reason to argue forest engineering research and time modeling. this paper applied one of the artificial intelligence subsets, which are called artificial neural networks (anns), to pred...