The effects of heat treatment on some mechanical properties of laminated black pine (Pinus nigra)
Black pine (Pinus nigra) has high industrial usage potential and large plantation in Turkey. Larch wood was treated with heat to determine its mechanical properties, such as bending strength and pressure and order to determine its adhesion strength. Laminating adhesives are used for the construction of polyvinyl acetate and polyurethane. Heat treatment was applied to the samples at 100-150°C for 4 h in drying oven. In the result of the experiments, heat treated samples give better results due to temperature increase. 
 
   
 
 Key words: Heat treatment, bending strength, compression strength, bonding strength, black pine.
THE EFFECTS OF HEAT TREATMENT ON SOME MECHANICAL PROPERTIES OF LAMINATED BEECH (FAGUS ORIENTALIS L.) WOOD
Heat treatment is often applied to wood species to improve their dimensional stability. This study examined the effects of heat treatment on certain mechanical properties of laminated beech wood ( Fagus orientalis L), which has industrially high usage potential and large plantations in Turkey. Wood specimens obtained from Simav- Kutahya, Turkey. For this purpose; first beech wood samples used in this study were kept in temperatures of 100 ˚C and 150 ˚C for 4 hours, and after that they were laminated with polyurethane and polyvinyl acetate adhesives. The test results of heat-treated laminated beech wood and control samples showed that mechanical properties including compression strength, bending strength and bonding strength effected positively with heat treatment, and increase in temperature and duration further increased strength values of the laminated wood specimens.
Evaluation of Impact of Yarn Count and Stitch Length on Pilling, Abrasion, Shrinkage and Tightness Factor of 1 ? 1 Rib Cotton Knitted Fabrics
This study investigates the impact of yarn count and stitch length of 100% cotton knitted fabrics. 1 × 1 ribs structured fabrics were used in this research work. The stitch length 2.50 mm, 2.52 mm, 2.60 mm, 2.70 mm, 2.80 mm and 2.96 mm were used of the yarn count of 26Ne, 28Ne and 36Ne. The areal densities of the grey fabrics were in various amounts. The impacts of yarn count and stitch length were measured concerning pilling resistance, abrasion resistance, and shrinkage and tightness factor. The result showed that the fabric pilling grade decreased while number of cycle increased. Abrasion resistance decreased but length wise shrinkage increased despite the fact that the stitch length increased. The results also exposed that the tightness factor of the fabric increased with the increase of the stitch length in both dyeing and washing state and finished state compared to grey state for the yarn count 26Ne and homogeneous result not found for yarn count 28Ne and 36 Ne. Evaluation of Impact of Yarn Count and Stitch Length on Pilling, Abrasion, Shrinkage and Tightness Factor of 1 × 1 Rib Cotton Knitted Fabrics