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Attempt to define morphological parameters enabling sex determination of Ips typographus (Linaeus, 1758) (Coleoptera: Curculionidae: Scolytinae) using PCA and CLU
spruce bark beetle principal components analysis cluster analysis
2015/5/5
There are only two known methods for determining the sex of Ips typographus (L.) – dissection that cannot be used with live beetles and by distinguishing between the density of the hairs on the head, ...
Determination of loading capacity depending on bevel angle of the wooden bonded scarf joint
scarf joint bonded joint wood loading capacity Mohr's circle
2014/2/26
The paper is focused on comparison of experimental and simple theoretical method of determination of loading capacity depending on bevel angle of wooden bonded scarf joint. The Mohr's circle principle...
Determination of increased forest value in denationalization procedures
denationalization of forest increased forest value forest openness skidding distance
2009/11/26
Forest value is increased by forest road construction. We can established increased forest value due to anew cadastral survey. The procedure of cadastral survey is time-consuming and expensive. The ot...
Determination of free formaldehyde released in wood-based material
formaldehyde wood-based material free formaldehyde release perforator mathod chamber method
2009/11/25
The quantity of free formaldehyde in wood products in spite of low values is still the subject of constant supervision and also the subject of new investigations. Despite numerous methods developed an...
Quantitative Determination of Magnolol in the Callus from Petioles and Mature Seeds of Magnolia obovata
callus Magnolia obovata magnolol neolignan
2009/11/23
The bark of Magnolia obovata has been used as a source of traditional Japanese herbal medication because it contains the medicinal ingredient such as magnolol, which is a kind of neolignan. In this st...
Correction factor for real-time determination of wood dust mass concentration by photometric method
photometry gravimetric method exposure to wood dust inhalable particles
2009/7/21
Samples of wood dust were collected in the working environment of wood machining processes for the purpose of determining correction factors for measuring mass concentration of wood dust by photomet...
Determination of relationships between density, amount of glue and mechanical properties of OSB
oriented strand board (OSB) density bending strength modulus of elasticity tensile strength perpendicular to the board surface amount of glue PMDI glues
2009/7/21
This paper deals with problems of the effect of changes in density and amount of glue on mechanical properties of OSB (oriented strand boards). Tests of mechanical properties were carried out on OSB...
Determination of cutting forces in cutting wood materials
measuring stand wood agglomerated materials cutting circular saw blade
2009/2/25
The paper gives information on a part of research and educational orientation of the Department of Forest and Forest Products Technology, Mendel University of Agriculture and Forestry in Brno. The d...
Differences in volume of round timber caused by different determination methods
round timber dimension measurement log volume
2009/2/25
Different methods of measuring and calculating the volume of logs in the forest after felling (“hand measuring”) and in log yards of sawmills (“electronic measuring”) give different results – volume...
A simple method for determination of kinetics of radial, tangential and surface swelling of wood
beech-wood spruce-wood tension and bio-degraded wood kinetics of swelling relative rate constants
2009/2/25
The aim of this paper is to introduce an objective method for monitoring the swelling rates and the final values of swelling of hard and soft woods in the polar media. As can be concluded from the p...
Determination of the Mechanization Level For Forestry Operations by Linear Programming
Level of Mechanization Linear Programming Forestry Production Operations Kale Region
2009/1/14
Forestry operations take place under various variables and partly uncontrolled factors. The lack of mechanization level and its application cause quantity and quality losses during production. In thi...