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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Rozbor současné úrovně a možnosti rozvoje organizačního a technologického zajištění těžební výroby u vybraných subjektů na Náchodsku
 Řezníček, Pavel
This diploma thesis deal with evaluation of the current method of harvesting production on property of Společný les Peklo and Obecní lesy Olešnice v Orlických horách represented by motomanual harvesting and binding concentration of wood. As alternative to current mode, I chose harvesting production performed by harvestor node. In the theoretical part of work, harvesting-transporting process, basic construction parameters of harvestor technologies, the performance standards used in forestry management and also estates of interest are described. In the practical part, common comparison of technologies using SWOT analysis and performance standards including wage rate and practical comparison of technologies on specific property are performed.
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Identifikace konstrukčně-provozních nedostatků soustrojí univerzálního kolového traktoru Forterra a lesnické nástavby PTR z hlediska uživatele
 Kubec, Jakub
Technological developments in the past centuries, of course, affected the forestry sector too. However, it has to be noted that not all development can be described as operationally suitable. Therefore the aim of the study was to identify construction deficiencies of the farm tractor and forestry extension from the operator point of view, to divide those into the two categories i.e. individual and conceptual, and subsequently to suggest new technological solution leading towards elimination of those deficiencies. Those practical changes should lead to enhancing of the machine reliability (repair ability, maintainability, durability etc.) which is in other words resistance against the load occurring during skidding using farm tractor.
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Posouzení vlivu mechanizovaného soustřeďování dříví na půdní povrch
 Černý, Lukáš
This Bachelor thesis deals with the measurement and evaluation of the immediate pressure in the soil after heavy machinery for the gatheriing of logs travels over it. It further looks into the method of measuring damage to the soil and trees in the forest cover after the logging operation. Measurement of immediate pressures was carried out at the Training Forest Enterprise of Masaryk Forest Křtiny. The prototype machine forwarder Novotný LVS 720 and the universal wheeled tractor Zetor Proxima Plus 8541 were assessed on the same type of soil with similar natural conditions. The results of the measurements proved that the protopype forwarders produced less immediate pressures during the transport of heavier loads than the universal wheeled tractor. The classical technology and CTL technology were evaluated for the measuring of damage to trees and soil in the forest cover at the areas of Telč and Plumlov. It was again confirmed that the CTL technology is more gentle to the environment of forest cover.
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