Nail driving force and withdrawal resistance of wood.

Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species

In this study, screw and nail withdrawal resistance of fir (Abies nordmanniana), oak (Quercus robur L.) black pine (Pinus nigra Arnold) and Stone pine (Pinus pinea L.) wood were determined and compared. The data represent the testing of withdrawal resistance of three types of screws as smart, serrated and conventional and common nails. The specimens were prepared according to TS 6094 standards....

nail and screw withdrawal strength, moe and mor in densified poplar wood

this research has been conducted to investigate the influence of steam temperature and densification percentage on withdrawal strength of nail and screw joints as well as flexural strength in compressed wood of eastern cottonwood (populus deltoeides). for this purpose 15 healthy standing trees of eastern cottonwood were selected from dr. bahramnia forest located in shasht-kola (gorgan). the fla...

the effect of paint coating types (acid catalyzed lacquers and nitrocellulose lacquers and polyester) and nano-particles (zycosil, zycofil) on withdrawal resistance of nail and screw in wood

the potential use of nano technology for improving of withdrawal resistance of nail and screw in wood was evaluated. for this, the maintenance strength of nail and screw was measured under dry and wet conditions for poplar wood (populus nigra) coated with common paints in furniture industry and nano-particles. specimens with dimensions of 15×5×5 cm3 (l×r×t) were cut from poplar wood (populus ni...

What Is The Driving Force Behind Industrial Development In Iran? Rent Seeking And Labor Exploitation As The Driving Force Of Industrial Growth

Driving Force for Nucleation of Multi-Component Gas Hydrate

Based on driving force for crystallization of one-component gas hydrate, in this report an expression for the supersaturation for crystallization of multicomponent gas hydrate is derived. Expressions for the supersaturation are obtained in isothermal and isobaric regimes. The results obtained are applied to the crystallization of hydrates of mixtures of methane plus ethane and can apply to ...