In this study, presence principles were developed for dynamic display design and evaluation of dynamic display for designing mixed reality space. This is a research to classify the indicators collected through the researches about the existing measurement and evaluation of the existence felling and information suggestion methods in mixed reality as the evaluation principles of the displays and ...

Grapple skidder is a machine designed for the extraction of tree bunches after felling. Several factors influence its technical performance and costs such as terrain slope, operator experience time, type, size each operating cycle, among others. Thus, it becomes necessary to weigh variables that most productivity grapple skidder. So, main objective was evaluated according bunch using two feller...

The article provides an analysis of changes in the areas Norway maple stands forests Republic Tatarstan from 1944 to 2019. According accounting data forest fund as 01.01.2020, area occupied by is 29.3 thousand hectares (2.5 % area), including 5.0 young growth 1st and 2nd age class, 21.4 middle-aged trees, 1.9 ripening trees 1.0 ripe trees. A reliable relationship was revealed between a decrease...

Abstract Winch-assist or tethered logging technology is rapidly being adopted by the forest industry across western United States to replace conventional and dangerous manual tree falling in cable areas. Although safety benefits of are widely acknowledged, effects mechanized timber pre-bunching on subsequent yarding operations have not been thoroughly investigated. We conducted a field study so...

Offshore structures such as jacket platforms have to inevitably be designed against  sever  environmental actions. In seismically active areas these structures also become susceptible to earthquake excitations. Strong ground motions recorded  in recent earthquakes, including the 1995 Kobe, Japan, 1999 Chi-chi, Taiwan and 1999 Kocaeli, Turkey earthquakes, revealed that the dynamic motions in nea...

Two water tupelo (Nyssa aquatica L.) stands in the Mobile Delta of Alabama were selected to test the hypothesis that mechanizedfelling does not reduce establishment and growth of natural water tupelo regeneration relative to traditional tree felling with chainsaws. To test the hypothesis, we established six, 2 ac treatment plots in each of two blocks on each of two sites, and randomly assigned ...