Moisture content (MC) is one of the most important factors that can affect many physical and mechanical properties of wood and veneers. MC strongly affects the final strength and durability of joints, development of surface checks in the wood and dimensional stability of the bonded assembly. In this study, plywood panels made from Alnus glutinosa (Alder), Fagus orientalis (Beech) and Picea orie...

This paper proposes a new method for rejecting the Continuous Wave Interferences (CWI) in the Global Positioning System (GPS) receivers. The proposed filter is made by cascading an adaptive Finite Impulse Response (FIR) filter and a Wavelet Packet Transform (WPT) based filter. Although adaptive FIR filters are easy to implement and have a linear phase, they create self-noise in the rejection of...

Three kinds of L-shaped latticed joint were designed to study the shear bearing capacity joints prepared by welding wooden dowels with self-tapping screws. The results showed that such composite in all specimens varying degrees bending and splitting on surface beech dowel after test. was moment at geometric center four dowels. force each generated from equal same direction. ultimate standard va...

this study evaluated the effects of end to end joint types of athel stripes at three level (end to end basic, end to end mitrated and end to end half lap joint) used in core layer veneered with three wood species (fir, beech and oak) and glued with three different ratio of melamine formaldehyde/urea formaldehyde resin (0:100, 25:75 and 50:50) on the bending strengths of bloakboard. according to...

Interactions between tree species determine the dynamics of forest communities. Spatial and temporal changes in resource availability, variation composition spatial distribution trees may alter competitive interactions and, therefore, affect growth productivity. In this study, we analyzed intra inter-specific European beech (Fagus sylvatica L.) silver fir (Abies alba Mill.) southern Italy (Moli...