National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Principle of work, structure, maintenance, efficiency and analysis of repairs of selected logging machines
SVINTEK, Lukáš
In the introduction, the contemporary situation in the wood extraction industry is described in general. This part introduces the reader to the issue of the industry together with addressing the solution of the contemporary situation emerging from the bark beetle crisis. The following part focuses on the method of wood extraction and used technologies. The general text is followed by a systematic classification of the extraction machines, their approaching, manipulation, and rough processing in the forest environment as well as manipulative space. This presented part describes the particular usage of the machines with the emphasis on specific sort of performed task. The subsequent chapter in the practical part deals with specific characteristics of the construction on these machines, their maintenance demands, and operator requirements. In the conclusion of this thesis, suggestions on construction improvement and operator safety are listed as well as recommendations to enhance the endurance of such equipment.
Testing of wood with structure disturbed by defects and wood-destroying pests focusing on destructive tests of mechanical properties and wood protection
REJŽEK, Lukáš
The theoretical part summarizes pieces of knowledge about the most common defects and wood pests including their impact on the properties of the material. The following practical part describes the destructive testing of wood - its course, calculation and evaluation of results. The final section is devoted to the structural and chemical wood protection. There are introduced basic principles and methods of protection and in the last chapter there are some examples of companies in our region that performs chemical protection.
Defects and pests of wood
REJŽEK, Lukáš
This bachelor thesis describes defects in wood and wood-decaying biological pests. For wood defects are explained causes of formation and their impact on the workability and usability of the material. The chapters on insects and wood-rotting fungi are mentioned the most important kinds of pests, their development in the wood, the level of damage and marginally possibilities of prevention or pest control. The text is accompanied by pictures. A two-part presentation serves for practical use in teaching at primary and secondary schools. The work also includes a collection of defects in wood and wood-boring insect grub holes.

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